cinelerra-5.1/cinelerra/trackcanvas.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 1997-2014 Adam Williams <broadcast at earthling dot net>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21
  22 #include "apatchgui.inc"
  23 #include "asset.h"
  24 #include "autoconf.h"
  25 #include "automation.h"
  26 #include "bcsignals.h"
  27 #include "bctimer.h"
  28 #include "clip.h"
  29 #include "colors.h"
  30 #include "cplayback.h"
  31 #include "cursors.h"
  32 #include "cwindowgui.h"
  33 #include "cwindow.h"
  34 #include "edithandles.h"
  35 #include "editpopup.h"
  36 #include "edits.h"
  37 #include "edl.h"
  38 #include "edlsession.h"
  39 #include "floatauto.h"
  40 #include "floatautos.h"
  41 #include "indexstate.h"
  42 #include "intauto.h"
  43 #include "intautos.h"
  44 #include "keyframe.h"
  45 #include "keyframepopup.h"
  46 #include "keyframes.h"
  47 #include "keys.h"
  48 #include "localsession.h"
  49 #include "mainclock.h"
  50 #include "maincursor.h"
  51 #include "mainsession.h"
  52 #include "mainundo.h"
  53 #include "maskautos.h"
  54 #include "mbuttons.h"
  55 #include "mtimebar.h"
  56 #include "mwindowgui.h"
  57 #include "mwindow.h"
  58 #include "panautos.h"
  59 #include "patchbay.h"
  60 #include "playbackengine.h"
  61 #include "playtransport.h"
  62 #include "plugin.h"
  63 #include "pluginpopup.h"
  64 #include "pluginserver.h"
  65 #include "pluginset.h"
  66 #include "plugintoggles.h"
  67 #include "preferences.h"
  68 #include "resourcepixmap.h"
  69 #include "resourcethread.h"
  70 #include "swindow.h"
  71 #include "theme.h"
  72 #include "trackcanvas.h"
  73 #include "tracking.h"
  74 #include "tracks.h"
  75 #include "transition.h"
  76 #include "transitionhandles.h"
  77 #include "transitionpopup.h"
  78 #include "transportque.h"
  79 #include "vframe.h"
  80 #include "vpatchgui.inc"
  81 #include "zoombar.h"
  82
  83 #include <string.h>
  84
  85 //#define PIXMAP_AGE -5
  86 #define PIXMAP_AGE -32
  87
  88 TrackCanvas::TrackCanvas(MWindow *mwindow,
  89         TimelinePane *pane,
  90         int x,
  91         int y,
  92         int w,
  93         int h)
  94  : BC_SubWindow(x,
  95         y,
  96         w,
  97         h)
  98 {
  99         this->mwindow = mwindow;
 100         this->gui = mwindow->gui;
 101         this->pane = pane;
 102
 103         selection_midpoint = 0;
 104         drag_scroll = 0;
 105         active = 0;
 106         temp_picon = 0;
 107         resource_timer = new Timer;
 108         render_timer = new Timer;
 109         hourglass_enabled = 0;
 110         timebar_position = -1;
 111 }
 112
 113 TrackCanvas::~TrackCanvas()
 114 {
 115 //      delete transition_handles;
 116         delete edit_handles;
 117         delete keyframe_pixmap;
 118         delete camerakeyframe_pixmap;
 119         delete modekeyframe_pixmap;
 120         delete pankeyframe_pixmap;
 121         delete projectorkeyframe_pixmap;
 122         delete maskkeyframe_pixmap;
 123         delete background_pixmap;
 124         if(temp_picon) delete temp_picon;
 125         delete render_timer;
 126         delete resource_timer;
 127 }
 128
 129 void TrackCanvas::create_objects()
 130 {
 131         background_pixmap = new BC_Pixmap(this, get_w(), get_h());
 132 //      transition_handles = new TransitionHandles(mwindow, this);
 133         edit_handles = new EditHandles(mwindow, this);
 134         keyframe_pixmap = new BC_Pixmap(this, mwindow->theme->keyframe_data, PIXMAP_ALPHA);
 135         camerakeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->camerakeyframe_data, PIXMAP_ALPHA);
 136         modekeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->modekeyframe_data, PIXMAP_ALPHA);
 137         pankeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->pankeyframe_data, PIXMAP_ALPHA);
 138         projectorkeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->projectorkeyframe_data, PIXMAP_ALPHA);
 139         maskkeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->maskkeyframe_data, PIXMAP_ALPHA);
 140         draw();
 141         update_cursor(0);
 142         flash(0);
 143 }
 144
 145 void TrackCanvas::resize_event()
 146 {
 147 //printf("TrackCanvas::resize_event 1\n");
 148         draw(0, 0);
 149         flash(0);
 150 //printf("TrackCanvas::resize_event 2\n");
 151 }
 152
 153 int TrackCanvas::keypress_event()
 154 {
 155         return 0;
 156 }
 157
 158 int TrackCanvas::cursor_leave_event()
 159 {
 160 // Because drag motion calls get_cursor_over_window we can be sure that
 161 // all highlights get deleted now.
 162 // This ended up blocking keyboard input from the drag operations.
 163         if( timebar_position >= 0 )
 164         {
 165                 timebar_position = -1;
 166                 if( pane->timebar )
 167                         pane->timebar->update(1);
 168         }
 169
 170         return 0;
 171 //      return drag_motion();
 172 }
 173
 174 int TrackCanvas::drag_motion_event()
 175 {
 176         return gui->drag_motion();
 177 }
 178
 179 int TrackCanvas::drag_motion(Track **over_track,
 180         Edit **over_edit,
 181         PluginSet **over_pluginset,
 182         Plugin **over_plugin)
 183 {
 184         int cursor_x = get_relative_cursor_x();
 185         int cursor_y = get_relative_cursor_y();
 186
 187         if( get_cursor_over_window() &&
 188                 cursor_x >= 0 && cursor_y >= 0 &&
 189                 cursor_x < get_w() && cursor_y < get_h() )
 190         {
 191 //printf("TrackCanvas::drag_motion %d %d\n", __LINE__, pane->number);
 192 // Find the edit and track the cursor is over
 193                 for(Track *track = mwindow->edl->tracks->first; track; track = track->next)
 194                 {
 195                         int64_t track_x, track_y, track_w, track_h;
 196                         track_dimensions(track, track_x, track_y, track_w, track_h);
 197
 198                         if(cursor_y >= track_y &&
 199                                 cursor_y < track_y + track_h)
 200                         {
 201                                 *over_track = track;
 202                                 for(Edit *edit = track->edits->first; edit; edit = edit->next)
 203                                 {
 204                                         int64_t edit_x, edit_y, edit_w, edit_h;
 205                                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
 206
 207                                         if(cursor_x >= edit_x &&
 208                                                 cursor_y >= edit_y &&
 209                                                 cursor_x < edit_x + edit_w &&
 210                                                 cursor_y < edit_y + edit_h)
 211                                         {
 212                                                 *over_edit = edit;
 213                                                 break;
 214                                         }
 215                                 }
 216
 217                                 for(int i = 0; i < track->plugin_set.total; i++)
 218                                 {
 219                                         PluginSet *pluginset = track->plugin_set.values[i];
 220                                         for(Plugin *plugin = (Plugin*)pluginset->first;
 221                                                 plugin;
 222                                                 plugin = (Plugin*)plugin->next)
 223                                         {
 224                                                 int64_t plugin_x, plugin_y, plugin_w, plugin_h;
 225                                                 plugin_dimensions(plugin, plugin_x, plugin_y, plugin_w, plugin_h);
 226
 227                                                 if(cursor_y >= plugin_y &&
 228                                                         cursor_y < plugin_y + plugin_h)
 229                                                 {
 230                                                         *over_pluginset = plugin->plugin_set;
 231
 232                                                         if(cursor_x >= plugin_x &&
 233                                                                 cursor_x < plugin_x + plugin_w)
 234                                                         {
 235                                                                 *over_plugin = plugin;
 236                                                                 break;
 237                                                         }
 238                                                 }
 239                                         }
 240                                 }
 241                                 break;
 242                         }
 243                 }
 244         }
 245
 246         if( !*over_track )
 247                 *over_track = pane->is_over_patchbay();
 248
 249         return 0;
 250 }
 251
 252
 253 int TrackCanvas::drag_stop_event()
 254 {
 255         int result = gui->drag_stop();
 256         if( !result && mwindow->session->current_operation ) {
 257                 mwindow->session->current_operation = NO_OPERATION;
 258                 drag_scroll = 0;
 259         }
 260         return result;
 261 }
 262
 263 int TrackCanvas::drag_stop(int *redraw)
 264 {
 265         int result = 0;
 266         int insertion  = 0;
 267         int over_window = 0;
 268         int cursor_x = -1, cursor_y = -1;
 269
 270         if( get_cursor_over_window() ) {
 271                 if( (cursor_x = get_relative_cursor_x()) >= 0 && cursor_x < get_w() &&
 272                     (cursor_y = get_relative_cursor_y()) >= 0 && cursor_y < get_h() )
 273                         over_window = 1;
 274                 else {
 275                         Track *track = pane->is_over_patchbay();
 276                         if( track && mwindow->session->track_highlighted == track )
 277                                 over_window = 1;
 278                 }
 279         }
 280
 281         if( over_window ) {
 282                 switch(mwindow->session->current_operation) {
 283                 case DRAG_VTRANSITION:
 284                 case DRAG_ATRANSITION:
 285                         if(mwindow->session->edit_highlighted) {
 286                                 if( (mwindow->session->current_operation == DRAG_ATRANSITION &&
 287                                      mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
 288                                     (mwindow->session->current_operation == DRAG_VTRANSITION &&
 289                                      mwindow->session->track_highlighted->data_type == TRACK_VIDEO) ) {
 290                                         mwindow->session->current_operation = NO_OPERATION;
 291                                         mwindow->paste_transition();
 292                                         result = 1;
 293                                 }
 294                         }
 295                         *redraw = 1;
 296                         break;
 297
 298 // Behavior for dragged plugins is limited by the fact that a shared plugin
 299 // can only refer to a standalone plugin that exists in the same position in
 300 // time.  Dragging a plugin from one point in time to another can't produce
 301 // a shared plugin to the original plugin.  In this case we relocate the
 302 // plugin instead of sharing it.
 303                 case DRAG_AEFFECT_COPY:
 304                 case DRAG_VEFFECT_COPY:
 305                         if( mwindow->session->track_highlighted &&
 306                             ((mwindow->session->current_operation == DRAG_AEFFECT_COPY &&
 307                               mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
 308                              (mwindow->session->current_operation == DRAG_VEFFECT_COPY &&
 309                               mwindow->session->track_highlighted->data_type == TRACK_VIDEO)) ) {
 310                                 mwindow->session->current_operation = NO_OPERATION;
 311
 312                                 int64_t drop_position = -1;
 313                                 Plugin *drag_plugin = mwindow->session->drag_plugin;
 314                                 PluginSet *hi_plugin_set = mwindow->session->pluginset_highlighted;
 315                                 Track *hi_track = mwindow->session->track_highlighted;
 316
 317 // Insert shared plugin in source
 318 // Move source to different location
 319                                 if( hi_plugin_set && hi_plugin_set->track == drag_plugin->track ) {
 320 //printf("TrackCanvas::drag_stop 6\n");
 321                                         drop_position = drop_plugin_position(hi_plugin_set, drag_plugin);
 322                                         if( drop_position >= 0 )
 323                                                 mwindow->move_effect(drag_plugin, hi_plugin_set, drop_position);
 324                                         result = 1;
 325                                 }
 326                                 else if( hi_track ) {
 327 // Put it in a new plugin set determined by an edit boundary, or at the start of the track
 328                                         Edit *hi_edit = mwindow->session->edit_highlighted;
 329                                         drop_position = hi_edit ? hi_edit->startproject : 0;
 330                                         if( drop_position >= 0 )
 331                                                 mwindow->move_effect(drag_plugin, hi_track, drop_position);
 332                                         result = 1;
 333                                 }
 334                         }
 335                         break;
 336
 337                 case DRAG_AEFFECT:
 338                 case DRAG_VEFFECT:
 339                         if( mwindow->session->track_highlighted &&
 340                             ((mwindow->session->current_operation == DRAG_AEFFECT &&
 341                               mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
 342                              (mwindow->session->current_operation == DRAG_VEFFECT &&
 343                               mwindow->session->track_highlighted->data_type == TRACK_VIDEO)) ) {
 344 // Drop all the effects
 345                                 PluginSet *plugin_set = mwindow->session->pluginset_highlighted;
 346                                 Track *track = mwindow->session->track_highlighted;
 347                                 double start = 0;
 348                                 double length = track->get_length();
 349
 350                                 if(mwindow->session->plugin_highlighted) {
 351                                         start = track->from_units(mwindow->session->plugin_highlighted->startproject);
 352                                         length = track->from_units(mwindow->session->plugin_highlighted->length);
 353                                         if(length <= 0) length = track->get_length();
 354                                 }
 355                                 else if(mwindow->session->pluginset_highlighted) {
 356                                                 start = track->from_units(plugin_set->length());
 357                                         length = track->get_length() - start;
 358                                         if(length <= 0) length = track->get_length();
 359                                 }
 360                                 else if(mwindow->edl->local_session->get_selectionend() >
 361                                         mwindow->edl->local_session->get_selectionstart()) {
 362                                         start = mwindow->edl->local_session->get_selectionstart();
 363                                         length = mwindow->edl->local_session->get_selectionend() -
 364                                                 mwindow->edl->local_session->get_selectionstart();
 365                                 }
 366 // Move to a point between two edits
 367                                 else if(mwindow->session->edit_highlighted) {
 368                                         start = mwindow->session->track_highlighted->from_units(
 369                                                 mwindow->session->edit_highlighted->startproject);
 370                                         length = mwindow->session->track_highlighted->from_units(
 371                                                 mwindow->session->edit_highlighted->length);
 372                                 }
 373
 374                                 mwindow->insert_effects_canvas(start, length);
 375                                 *redraw = 1;
 376                         }
 377                         if( mwindow->session->track_highlighted )
 378                                 result = 1;  // we have to cleanup
 379                         break;
 380
 381                 case DRAG_ASSET:
 382                         if(mwindow->session->track_highlighted) {
 383                                 double asset_duration = 0;
 384                                 int64_t asset_length_units = 0;
 385                                 int64_t position = 0;
 386
 387                                 if(mwindow->session->current_operation == DRAG_ASSET &&
 388                                         mwindow->session->drag_assets->total) {
 389                                         Indexable *indexable = mwindow->session->drag_assets->values[0];
 390                                         // we use video if we are over video and audio if we are over audio
 391                                         if( indexable->have_video() &&
 392                                             mwindow->session->track_highlighted->data_type == TRACK_VIDEO ) {
 393                                                 // Images have length -1
 394                                                 int64_t video_length = indexable->get_video_frames();
 395                                                 if (video_length < 0) {
 396                                                         if(mwindow->edl->session->si_useduration)
 397                                                                 video_length = mwindow->edl->session->si_duration;
 398                                                         else
 399                                                                 video_length = 1.0 / mwindow->edl->session->frame_rate ;
 400                                                 }
 401                                                 asset_duration = video_length / indexable->get_frame_rate();
 402                                         }
 403                                         else if( indexable->have_audio() &&
 404                                                  mwindow->session->track_highlighted->data_type == TRACK_AUDIO ) {
 405                                                 int64_t audio_length = indexable->get_audio_samples();
 406                                                 asset_duration = (double)audio_length / indexable->get_sample_rate();
 407                                         }
 408                                         else {
 409                                                 result = 1;
 410                                                 break;  // Do not do anything
 411                                         }
 412                                 }
 413                                 else if( mwindow->session->current_operation == DRAG_ASSET &&
 414                                          mwindow->session->drag_clips->total ) {
 415                                         EDL *clip = mwindow->session->drag_clips->values[0];
 416                                         asset_duration = clip->tracks->total_length();
 417                                 }
 418                                 else {
 419                                         printf("DRAG_ASSET error: Asset dropped, but both drag_clips and drag_assets total is zero\n");
 420                                 }
 421
 422                                 asset_length_units = mwindow->session->track_highlighted->to_units(asset_duration, 1);
 423                                 position = drop_edit_position (&insertion, NULL, asset_length_units);
 424                                 if( position == -1 ) {
 425                                         result = 1;
 426                                         break;          // Do not do anything
 427                                 }
 428
 429                                 double position_f = mwindow->session->track_highlighted->from_units(position);
 430                                 Track *track = mwindow->session->track_highlighted;
 431
 432 //                              if (!insertion) {
 433 //                                      // FIXME, we should create an mwindow/EDL method that overwrites, without clearing the keyframes and autos
 434 //                                      // Unfortunately, this is _a lot_ of work to do right
 435 //                                      printf("Problematic insertion\n");
 436 //                                      mwindow->edl->tracks->clear(position_f,
 437 //                                              position_f + asset_duration, 0);
 438 //                              }
 439                                 mwindow->paste_assets(position_f, track, !insertion);
 440                                 result = 1;    // need to be one no matter what, since we have track highlited so we have to cleanup....
 441                         }
 442                         break;
 443
 444                 case DRAG_EDIT:
 445                         mwindow->session->current_operation = NO_OPERATION;
 446                         if(mwindow->session->track_highlighted) {
 447                                 if( mwindow->session->track_highlighted->data_type ==
 448                                         mwindow->session->drag_edit->track->data_type) {
 449                                         int64_t position = 0;
 450                                         position = drop_edit_position(&insertion,
 451                                                         mwindow->session->drag_edit,
 452                                                         mwindow->session->drag_edit->length);
 453                                         if (position == -1) {
 454                                                 result = 1;
 455                                                 break;          // Do not do anything
 456                                         }
 457
 458                                         double position_f = mwindow->session->track_highlighted->from_units(position);
 459                                         Track *track = mwindow->session->track_highlighted;
 460                                         mwindow->move_edits(mwindow->session->drag_edits,
 461                                                         track, position_f, !insertion);
 462                                 }
 463
 464                                 result = 1;
 465                         }
 466                         break;
 467                 }
 468         }
 469
 470         return result;
 471 }
 472
 473 int TrackCanvas::drag_start_event()
 474 {
 475         int result = 0;
 476         int redraw = 0;
 477         int rerender = 0;
 478         int new_cursor, update_cursor;
 479
 480         if(mwindow->session->current_operation != NO_OPERATION) return 0;
 481
 482         if(is_event_win()) {
 483                 if(do_plugins(get_drag_x(), get_drag_y(),
 484                                 1, 0, redraw, rerender)) {
 485                         result = 1;
 486                 }
 487                 else if(do_edits(get_drag_x(), get_drag_y(),
 488                                 0, 1, redraw, rerender, new_cursor, update_cursor)) {
 489                         result = 1;
 490                 }
 491         }
 492
 493         return result;
 494 }
 495
 496 int64_t TrackCanvas::drop_edit_position(int *is_insertion, Edit *moved_edit, int64_t moved_edit_length)
 497 {
 498         // get the canvas/track position
 499         Track *track = mwindow->session->track_highlighted;
 500         int cursor_x = get_relative_cursor_x();
 501         double zoom_scale = (double)mwindow->edl->session->sample_rate / mwindow->edl->local_session->zoom_sample;
 502         double drop_time = (cursor_x + mwindow->edl->local_session->view_start[pane->number]) / zoom_scale;
 503         // we use cursor position for affinity calculations
 504         int64_t cursor_position = track->to_units(drop_time, 0);
 505         if( cursor_position <= 0 ) {
 506                 *is_insertion = 1;
 507                 return 0;
 508         }
 509         if( moved_edit )  // relative cursor position depends upon drop point
 510                 drop_time -= mwindow->session->drag_position - moved_edit->track->from_units(moved_edit->startproject);
 511         int64_t drop_position = track->to_units(drop_time, 1);
 512         if( !moved_edit )  // for clips and assets acts as they were grabbed in the middle
 513                 drop_position -= moved_edit_length / 2;
 514         Edit *last_edit = track->edits->last;
 515         if( !last_edit || drop_position > last_edit->startproject+last_edit->length ) {
 516                 *is_insertion = 0;
 517                 return drop_position;
 518         }
 519
 520         int64_t drop_x0 = 0, drop_x1 = 0;  // drop zone boundries
 521         for( Edit *edit = track->edits->first; edit; ) {
 522                 int64_t edit_x0 = edit->startproject, edit_x1 = edit_x0 + edit->length;
 523                 if( Units::round(labs(edit_x0-cursor_position)*zoom_scale) < HANDLE_W ) {
 524                         *is_insertion = 1; // cursor is close to the beginning of an edit -> insertion
 525                         return edit->startproject;
 526                 }
 527                 if( Units::round(labs(edit_x1-cursor_position)*zoom_scale) < HANDLE_W ) {
 528                         *is_insertion = 1; // cursor is close to the end of an edit -> insertion
 529                         return edit->startproject + edit->length;
 530                 }
 531                 if( edit != moved_edit && !edit->silence() )
 532                         drop_x0 = edit_x1; // reset drop zone
 533                 if( (edit=edit->next) != 0 ) {
 534                         if( edit == moved_edit || edit->silence() ) continue;
 535                         drop_x1 = edit_x1;
 536                 }
 537                 else
 538                         drop_x1 = INT64_MAX;
 539 //printf("drop cursor=%jd, x0=%jd, x1=%jd\n", cursor_position, drop_x0, drop_x1);
 540                 if( drop_position >= drop_x0 && drop_position+moved_edit_length < drop_x1 ) {
 541                         *is_insertion = 0; // fits in the zone
 542 //printf("into %jd\n", drop_position);
 543                         return drop_position;
 544                 }
 545                 if( cursor_position < drop_x1 ) { // drop in the zone
 546                         if( (drop_x1-drop_x0) >= moved_edit_length ) {
 547                                 *is_insertion = 0; // fits in the zone, but over the edge
 548                                 int64_t dx0 = llabs(cursor_position-drop_x0);
 549                                 int64_t dx1 = llabs(cursor_position-drop_x1);
 550 //printf("onto %jd\n", dx0 < dx1 ? drop_x0 : drop_x1 - moved_edit_length);
 551                                 return dx0 < dx1 ? drop_x0 : drop_x1 - moved_edit_length;
 552                         }
 553                         int edit_center = (edit_x0+edit_x1) / 2;
 554                         if( cursor_position < edit_center ) {
 555                                 *is_insertion = 1;
 556 //printf("snap left %jd\n", drop_x0);
 557                                 return drop_x0; // snap left
 558                         }
 559                         else {
 560                                 *is_insertion = 1;
 561 //printf("snap right %jd\n", drop_x1);
 562                                 return drop_x1; // snap right
 563                         }
 564                 }
 565         }
 566
 567         *is_insertion = 0;
 568         return -1;
 569 }
 570
 571 int64_t TrackCanvas::drop_plugin_position(PluginSet *plugin_set, Plugin *moved_plugin)
 572 {
 573         // get the canvas/track position
 574         Track *track = plugin_set->track;
 575         int cursor_x = get_relative_cursor_x();
 576         double zoom_scale = (double)mwindow->edl->session->sample_rate / mwindow->edl->local_session->zoom_sample;
 577         double drop_time = (cursor_x + mwindow->edl->local_session->view_start[pane->number]) / zoom_scale;
 578         // we use cursor position for affinity calculations
 579         int64_t cursor_position = track->to_units(drop_time, 0);
 580         if( cursor_position <= 0 ) return 0;
 581         drop_time -= mwindow->session->drag_position - moved_plugin->track->from_units(moved_plugin->startproject);
 582         int64_t drop_position = track->to_units(drop_time, 1);
 583         Plugin *last_plugin = (Plugin *)plugin_set->last;
 584         if( !last_plugin || drop_position > last_plugin->startproject+last_plugin->length ) {
 585                 return drop_position;
 586         }
 587
 588         int64_t drop_x0 = 0, drop_x1 = 0;  // drop zone boundries
 589         for( Plugin *plugin = (Plugin *)plugin_set->first; plugin; ) {
 590                 int64_t plugin_x0 = plugin->startproject, plugin_x1 = plugin_x0 + plugin->length;
 591                 if( plugin != moved_plugin && !plugin->silence() )
 592                         drop_x0 = plugin_x1;
 593                 if( (plugin=(Plugin *)plugin->next) != 0 ) {
 594                         if( plugin == moved_plugin || plugin->silence() ) continue;
 595                         drop_x1 = plugin_x1;
 596                 }
 597                 else
 598                         drop_x1 = INT64_MAX;
 599                 if( drop_position >= drop_x0 && // fits in the zone
 600                     drop_position+moved_plugin->length < drop_x1 ) {
 601                         return drop_position;
 602                 }
 603                 if( cursor_position < drop_x1 ) { // drop in the zone
 604                         if( (drop_x1-drop_x0) >= moved_plugin->length ) {
 605                                 int64_t dx0 = llabs(cursor_position-drop_x0);
 606                                 int64_t dx1 = llabs(cursor_position-drop_x1);
 607                                 return dx0 < dx1 ? drop_x0 : drop_x1 - moved_plugin->length;
 608                         }
 609                 }
 610         }
 611
 612         return -1;
 613 }
 614
 615
 616 void TrackCanvas::draw(int mode, int hide_cursor)
 617 {
 618         const int debug = 0;
 619
 620
 621 // Swap pixmap layers
 622         if(get_w() != background_pixmap->get_w() ||
 623                 get_h() != background_pixmap->get_h())
 624         {
 625                 delete background_pixmap;
 626                 background_pixmap = new BC_Pixmap(this, get_w(), get_h());
 627         }
 628
 629 // Cursor disappears after resize when this is called.
 630 // Cursor doesn't redraw after editing when this isn't called.
 631         if(pane->cursor && hide_cursor) pane->cursor->hide();
 632         draw_top_background(get_parent(), 0, 0, get_w(), get_h(), background_pixmap);
 633
 634         if(debug) PRINT_TRACE
 635         draw_resources(mode);
 636
 637         if(debug) PRINT_TRACE
 638         draw_overlays();
 639         if(debug) PRINT_TRACE
 640 }
 641
 642 void TrackCanvas::update_cursor(int flush)
 643 {
 644         switch(mwindow->edl->session->editing_mode)
 645         {
 646                 case EDITING_ARROW: set_cursor(ARROW_CURSOR, 0, flush); break;
 647                 case EDITING_IBEAM: set_cursor(IBEAM_CURSOR, 0, flush); break;
 648         }
 649 }
 650
 651
 652 void TrackCanvas::test_timer()
 653 {
 654         if(resource_timer->get_difference() > 1000 &&
 655                 !hourglass_enabled)
 656         {
 657                 start_hourglass();
 658                 hourglass_enabled = 1;
 659         }
 660 }
 661
 662
 663 void TrackCanvas::draw_indexes(Indexable *indexable)
 664 {
 665 // Don't redraw raw samples
 666         IndexState *index_state = 0;
 667         index_state = indexable->index_state;
 668
 669
 670         if(index_state->index_zoom > mwindow->edl->local_session->zoom_sample)
 671                 return;
 672
 673
 674         draw_resources(0, 1, indexable);
 675
 676         draw_overlays();
 677         flash(0);
 678 }
 679
 680 void TrackCanvas::draw_resources(int mode,
 681         int indexes_only,
 682         Indexable *indexable)
 683 {
 684         const int debug = 0;
 685
 686         if(debug) PRINT_TRACE
 687
 688         if(!mwindow->edl->session->show_assets) return;
 689
 690
 691 // can't stop thread here, because this is called for every pane
 692 //      if(mode != IGNORE_THREAD && !indexes_only)
 693 //              gui->resource_thread->stop_draw(!indexes_only);
 694
 695         if(mode != IGNORE_THREAD &&
 696                 !indexes_only &&
 697                 !gui->resource_thread->interrupted)
 698         {
 699                 printf("TrackCanvas::draw_resources %d: called without stopping ResourceThread\n",
 700                         __LINE__);
 701
 702                 BC_Signals::dump_stack();
 703         }
 704
 705         if(debug) PRINT_TRACE
 706
 707         resource_timer->update();
 708
 709 // Age resource pixmaps for deletion
 710         if(!indexes_only)
 711                 for(int i = 0; i < gui->resource_pixmaps.total; i++)
 712                         gui->resource_pixmaps.values[i]->visible--;
 713
 714         if(mode == FORCE_REDRAW)
 715                 gui->resource_pixmaps.remove_all_objects();
 716
 717         if(debug) PRINT_TRACE
 718
 719 // Search every edit
 720         for(Track *current = mwindow->edl->tracks->first;
 721                 current;
 722                 current = NEXT)
 723         {
 724                 if(debug) PRINT_TRACE
 725                 for(Edit *edit = current->edits->first; edit; edit = edit->next)
 726                 {
 727                         if(debug) PRINT_TRACE
 728                         if( current->data_type != TRACK_SUBTITLE )
 729                                 if(!edit->asset && !edit->nested_edl) continue;
 730                         if(indexes_only)
 731                         {
 732                                 if(edit->track->data_type != TRACK_AUDIO) continue;
 733
 734                                 if(edit->nested_edl &&
 735                                         strcmp(indexable->path, edit->nested_edl->path)) continue;
 736
 737                                 if(edit->asset &&
 738                                         strcmp(indexable->path, edit->asset->path)) continue;
 739                         }
 740
 741                         if(debug) PRINT_TRACE
 742
 743                         int64_t edit_x, edit_y, edit_w, edit_h;
 744                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
 745
 746 // Edit is visible
 747                         if(MWindowGUI::visible(edit_x, edit_x + edit_w, 0, get_w()) &&
 748                                 MWindowGUI::visible(edit_y, edit_y + edit_h, 0, get_h()))
 749                         {
 750                                 int64_t pixmap_x, pixmap_w, pixmap_h;
 751                                 if(debug) PRINT_TRACE
 752
 753 // Search for existing pixmap containing edit
 754                                 for(int i = 0; i < gui->resource_pixmaps.total; i++)
 755                                 {
 756                                         ResourcePixmap* pixmap = gui->resource_pixmaps.values[i];
 757 // Same pointer can be different edit if editing took place
 758                                         if(pixmap->edit_id == edit->id &&
 759                                                 pixmap->pane_number == pane->number)
 760                                         {
 761                                                 pixmap->visible = 1;
 762                                                 break;
 763                                         }
 764                                 }
 765                                 if(debug) PRINT_TRACE
 766
 767 // Get new size, offset of pixmap needed
 768                                 get_pixmap_size(edit,
 769                                         edit_x,
 770                                         edit_w,
 771                                         pixmap_x,
 772                                         pixmap_w,
 773                                         pixmap_h);
 774                                 if(debug) PRINT_TRACE
 775
 776 // Draw new data
 777                                 if(pixmap_w && pixmap_h)
 778                                 {
 779 // Create pixmap if it doesn't exist
 780                                         ResourcePixmap* pixmap = create_pixmap(edit,
 781                                                 edit_x,
 782                                                 pixmap_x,
 783                                                 pixmap_w,
 784                                                 pixmap_h);
 785 // Resize it if it's bigger
 786                                         if(pixmap_w > pixmap->pixmap_w ||
 787                                                 pixmap_h > pixmap->pixmap_h)
 788                                                 pixmap->resize(pixmap_w, pixmap_h);
 789                                         pixmap->draw_data(this,
 790                                                 edit,
 791                                                 edit_x,
 792                                                 edit_w,
 793                                                 pixmap_x,
 794                                                 pixmap_w,
 795                                                 pixmap_h,
 796                                                 mode,
 797                                                 indexes_only);
 798 // Resize it if it's smaller
 799                                         if(pixmap_w < pixmap->pixmap_w ||
 800                                                 pixmap_h < pixmap->pixmap_h)
 801                                                 pixmap->resize(pixmap_w, pixmap_h);
 802
 803 // Copy pixmap to background canvas
 804                                         background_pixmap->draw_pixmap(pixmap,
 805                                                 pixmap->pixmap_x,
 806                                                 current->y_pixel - mwindow->edl->local_session->track_start[pane->number],
 807                                                 pixmap->pixmap_w,
 808                                                 edit_h);
 809                                 }
 810                                 if(debug) PRINT_TRACE
 811
 812                         }
 813                 }
 814         }
 815
 816
 817 // Delete unused pixmaps
 818         if(debug) PRINT_TRACE
 819         if(!indexes_only)
 820                 for(int i = gui->resource_pixmaps.total - 1; i >= 0; i--)
 821                         if(gui->resource_pixmaps.values[i]->visible < PIXMAP_AGE)
 822                         {
 823 //printf("TrackCanvas::draw_resources %d\n", __LINE__);
 824                                 delete gui->resource_pixmaps.values[i];
 825                                 gui->resource_pixmaps.remove(gui->resource_pixmaps.values[i]);
 826                         }
 827         if(debug) PRINT_TRACE
 828
 829         if(hourglass_enabled)
 830         {
 831                 stop_hourglass();
 832                 hourglass_enabled = 0;
 833         }
 834         if(debug) PRINT_TRACE
 835
 836 // can't stop thread here, because this is called for every pane
 837 //      if(mode != IGNORE_THREAD && !indexes_only)
 838 //              gui->resource_thread->start_draw();
 839         if(debug) PRINT_TRACE
 840
 841
 842 }
 843
 844 ResourcePixmap* TrackCanvas::create_pixmap(Edit *edit,
 845         int64_t edit_x,
 846         int64_t pixmap_x,
 847         int64_t pixmap_w,
 848         int64_t pixmap_h)
 849 {
 850         ResourcePixmap *result = 0;
 851
 852         for(int i = 0; i < gui->resource_pixmaps.total; i++)
 853         {
 854 //printf("TrackCanvas::create_pixmap 1 %d %d\n", edit->id, resource_pixmaps.values[i]->edit->id);
 855                 if(gui->resource_pixmaps.values[i]->edit_id == edit->id &&
 856                         gui->resource_pixmaps.values[i]->pane_number == pane->number)
 857                 {
 858                         result = gui->resource_pixmaps.values[i];
 859                         break;
 860                 }
 861         }
 862
 863         if(!result)
 864         {
 865 //SET_TRACE
 866                 result = new ResourcePixmap(mwindow,
 867                         gui,
 868                         edit,
 869                         pane->number,
 870                         pixmap_w,
 871                         pixmap_h);
 872 //SET_TRACE
 873                 gui->resource_pixmaps.append(result);
 874         }
 875
 876 //      result->resize(pixmap_w, pixmap_h);
 877         return result;
 878 }
 879
 880 void TrackCanvas::get_pixmap_size(Edit *edit,
 881         int64_t edit_x,
 882         int64_t edit_w,
 883         int64_t &pixmap_x,
 884         int64_t &pixmap_w,
 885         int64_t &pixmap_h)
 886 {
 887
 888 // Align x on frame boundaries
 889
 890
 891 //      switch(edit->edits->track->data_type)
 892 //      {
 893 //              case TRACK_AUDIO:
 894
 895                         pixmap_x = edit_x;
 896                         pixmap_w = edit_w;
 897                         if(pixmap_x < 0)
 898                         {
 899                                 pixmap_w -= -edit_x;
 900                                 pixmap_x = 0;
 901                         }
 902
 903                         if(pixmap_x + pixmap_w > get_w())
 904                         {
 905                                 pixmap_w = get_w() - pixmap_x;
 906                         }
 907
 908 //                      break;
 909 //
 910 //              case TRACK_VIDEO:
 911 //              {
 912 //                      int64_t picon_w = (int64_t)(edit->picon_w() + 0.5);
 913 //                      int64_t frame_w = (int64_t)(edit->frame_w() + 0.5);
 914 //                      int64_t pixel_increment = MAX(picon_w, frame_w);
 915 //                      int64_t pixmap_x1 = edit_x;
 916 //                      int64_t pixmap_x2 = edit_x + edit_w;
 917 //
 918 //                      if(pixmap_x1 < 0)
 919 //                      {
 920 //                              pixmap_x1 = (int64_t)((double)-edit_x / pixel_increment) *
 921 //                                      pixel_increment +
 922 //                                      edit_x;
 923 //                      }
 924 //
 925 //                      if(pixmap_x2 > get_w())
 926 //                      {
 927 //                              pixmap_x2 = (int64_t)((double)(get_w() - edit_x) / pixel_increment + 1) *
 928 //                                      pixel_increment +
 929 //                                      edit_x;
 930 //                      }
 931 //                      pixmap_x = pixmap_x1;
 932 //                      pixmap_w = pixmap_x2 - pixmap_x1;
 933 //                      break;
 934 //              }
 935 //      }
 936
 937         pixmap_h = mwindow->edl->local_session->zoom_track;
 938         if(mwindow->edl->session->show_titles) pixmap_h += mwindow->theme->get_image("title_bg_data")->get_h();
 939 //printf("get_pixmap_size %d %d %d %d\n", edit_x, edit_w, pixmap_x, pixmap_w);
 940 }
 941
 942 void TrackCanvas::edit_dimensions(Edit *edit,
 943         int64_t &x,
 944         int64_t &y,
 945         int64_t &w,
 946         int64_t &h)
 947 {
 948 //      w = Units::round(edit->track->from_units(edit->length) *
 949 //              mwindow->edl->session->sample_rate /
 950 //              mwindow->edl->local_session->zoom_sample);
 951
 952         h = resource_h();
 953
 954         x = Units::round(edit->track->from_units(edit->startproject) *
 955                         mwindow->edl->session->sample_rate /
 956                         mwindow->edl->local_session->zoom_sample -
 957                         mwindow->edl->local_session->view_start[pane->number]);
 958
 959 // Method for calculating w so when edits are together we never get off by one error due to rounding
 960         int64_t x_next = Units::round(edit->track->from_units(edit->startproject + edit->length) *
 961                         mwindow->edl->session->sample_rate /
 962                         mwindow->edl->local_session->zoom_sample -
 963                         mwindow->edl->local_session->view_start[pane->number]);
 964         w = x_next - x;
 965
 966         y = edit->edits->track->y_pixel - mwindow->edl->local_session->track_start[pane->number];
 967
 968         if(mwindow->edl->session->show_titles)
 969                 h += mwindow->theme->get_image("title_bg_data")->get_h();
 970 }
 971
 972 void TrackCanvas::track_dimensions(Track *track, int64_t &x, int64_t &y, int64_t &w, int64_t &h)
 973 {
 974         x = 0;
 975         w = get_w();
 976         y = track->y_pixel - mwindow->edl->local_session->track_start[pane->number];
 977         h = track->vertical_span(mwindow->theme);
 978 }
 979
 980
 981 void TrackCanvas::draw_paste_destination()
 982 {
 983         //int cursor_x = get_relative_cursor_x();
 984         //int cursor_y = get_relative_cursor_y();
 985         int current_atrack = 0;
 986         int current_vtrack = 0;
 987         int current_aedit = 0;
 988         int current_vedit = 0;
 989         int64_t w = 0;
 990         int64_t x;
 991         double position;
 992         int insertion  = 0;
 993
 994 //if(pane->number == BOTTOM_RIGHT_PANE)
 995 //printf("TrackCanvas::draw_paste_destination %d %p\n", __LINE__, mwindow->session->track_highlighted);
 996
 997         if((mwindow->session->current_operation == DRAG_ASSET &&
 998                         (mwindow->session->drag_assets->total ||
 999                         mwindow->session->drag_clips->total)) ||
1000                 (mwindow->session->current_operation == DRAG_EDIT &&
1001                         mwindow->session->drag_edits->total)) {
1002                 Indexable *indexable = 0;
1003                 EDL *clip = 0;
1004                 //int draw_box = 0;
1005
1006                 if(mwindow->session->current_operation == DRAG_ASSET &&
1007                         mwindow->session->drag_assets->size())
1008                         indexable = mwindow->session->drag_assets->get(0);
1009
1010                 if(mwindow->session->current_operation == DRAG_ASSET &&
1011                         mwindow->session->drag_clips->size())
1012                         clip = mwindow->session->drag_clips->get(0);
1013
1014                 int has_audio = 0, has_video = 0;
1015                 double paste_audio_length = 0, paste_video_length = 0;
1016                 double paste_audio_position = -1, paste_video_position = -1;
1017
1018                 if( indexable ) {
1019                         has_audio = indexable->have_audio();
1020                         paste_audio_length = !has_audio ? 0 :
1021                                  (double)indexable->get_audio_samples() / indexable->get_sample_rate();
1022                         has_video = indexable->have_video();
1023                         Asset *asset = indexable->is_asset ? (Asset *)indexable : 0;
1024                         // Images have length -1
1025                         if( asset && asset->video_data && asset->video_length < 0 ) {
1026                                 paste_video_length = mwindow->edl->session->si_useduration ?
1027                                         mwindow->edl->session->si_duration / asset->frame_rate :
1028                                         1.0 / asset->frame_rate ;  // 1 frame
1029                         }
1030                         else
1031                                 paste_video_length = !has_video ? 0 :
1032                                         (double)indexable->get_video_frames() / indexable->get_frame_rate();
1033                 }
1034
1035                 if( clip ) {
1036                         has_audio = clip->tracks->total_audio_tracks() > 0 ? 1 : 0;
1037                         paste_audio_length = !has_audio ? 0 : clip->tracks->total_audio_length();
1038                         has_video = clip->tracks->total_video_tracks() > 0 ? 1 : 0;
1039                         paste_video_length = !has_video ? 0 : clip->tracks->total_video_length();
1040                 }
1041
1042 // 'Align cursor on frame' lengths calculations
1043                 if( mwindow->edl->session->cursor_on_frames ) {
1044                         double fps = mwindow->edl->session->frame_rate;
1045                         double aud = floor(paste_audio_length * fps) / fps;
1046                         double vid = floor(paste_video_length * fps) / fps;
1047                         double length = has_video && has_audio ?
1048                                         aud < vid ? aud : vid :
1049                                 has_video ? vid :
1050                                 has_audio ? aud : 0;
1051                         paste_video_length = paste_audio_length = length;
1052                 }
1053
1054                 if( has_audio ) { // we use video if we are over video and audio if we are over audio
1055                         int64_t length = 0;
1056                         switch( mwindow->session->track_highlighted->data_type ) {
1057                         case TRACK_VIDEO: length = paste_video_length;  break;
1058                         case TRACK_AUDIO: length = paste_audio_length;  break;
1059                         }
1060                         int64_t asset_length = mwindow->session->track_highlighted->
1061                                 to_units(length, 1);
1062                         paste_audio_position = mwindow->session->track_highlighted->
1063                                 from_units(drop_edit_position(&insertion, NULL, asset_length));
1064                 }
1065                 if( has_video ) {
1066                         int64_t asset_length = mwindow->session->track_highlighted->
1067                                 to_units(paste_video_length, 1);
1068                         paste_video_position = mwindow->session->track_highlighted->
1069                                 from_units(drop_edit_position(&insertion, NULL, asset_length));
1070                 }
1071
1072 // Get destination track
1073                 for(Track *dest = mwindow->session->track_highlighted;
1074                         dest;
1075                         dest = dest->next) {
1076                         if(dest->record) {
1077 // Get source width in pixels
1078                                 w = -1;
1079 // Use start of highlighted edit
1080                                 if(mwindow->session->edit_highlighted) {
1081                                         position = mwindow->session->track_highlighted->from_units(
1082                                                 mwindow->session->edit_highlighted->startproject);
1083                                 }
1084                                 else {
1085 // Use end of highlighted track, disregarding effects
1086                                         position = mwindow->session->track_highlighted->from_units(
1087                                                 mwindow->session->track_highlighted->edits->length());
1088                                 }
1089
1090 // Get the x coordinate
1091                                 x = Units::to_int64(position *
1092                                         mwindow->edl->session->sample_rate /
1093                                         mwindow->edl->local_session->zoom_sample) -
1094                                         mwindow->edl->local_session->view_start[pane->number];
1095
1096                                 double paste_position = -1.;
1097                                 if(dest->data_type == TRACK_AUDIO) {
1098                                         if(indexable && current_atrack < indexable->get_audio_channels()) {
1099 //printf("TrackCanvas::draw_paste_destination %d %d\n", __LINE__, current_atrack);
1100                                                 w = Units::to_int64((double)indexable->get_audio_samples() /
1101                                                         indexable->get_sample_rate() *
1102                                                         mwindow->edl->session->sample_rate /
1103                                                         mwindow->edl->local_session->zoom_sample);
1104                                                 paste_position = paste_audio_position;
1105                                         }
1106                                         else if(clip && current_atrack < clip->tracks->total_audio_tracks()) {
1107                                                 w = Units::to_int64((double)clip->tracks->total_length() *
1108                                                         mwindow->edl->session->sample_rate /
1109                                                         mwindow->edl->local_session->zoom_sample);
1110                                                 paste_position = paste_audio_position;
1111 //printf("draw_paste_destination %d\n", x);
1112                                         }
1113                                         else if(mwindow->session->current_operation == DRAG_EDIT &&
1114                                                 current_aedit < mwindow->session->drag_edits->total) {
1115                                                 Edit *edit;
1116                                                 while(current_aedit < mwindow->session->drag_edits->total &&
1117                                                         mwindow->session->drag_edits->values[current_aedit]->track->data_type != TRACK_AUDIO)
1118                                                         current_aedit++;
1119
1120                                                 if(current_aedit < mwindow->session->drag_edits->total) {
1121                                                         edit = mwindow->session->drag_edits->values[current_aedit];
1122                                                         w = Units::to_int64(edit->length / mwindow->edl->local_session->zoom_sample);
1123                                                         paste_position = mwindow->session->track_highlighted->
1124                                                                 from_units(drop_edit_position(&insertion,
1125                                                                         mwindow->session->drag_edit,
1126                                                                         mwindow->session->drag_edit->length));
1127                                                 }
1128                                         }
1129                                         if( paste_position >= 0 ) {
1130                                                 position = paste_position;
1131                                                 current_atrack++;
1132                                                 //draw_box = 1;
1133                                         }
1134                                         else
1135                                                 w = -1;
1136                                 }
1137                                 else if(dest->data_type == TRACK_VIDEO) {
1138 //printf("draw_paste_destination 1\n");
1139                                         if(indexable && current_vtrack < indexable->get_video_layers())
1140                                         {
1141                                                 w = Units::to_int64((double)indexable->get_video_frames() /
1142                                                         indexable->get_frame_rate() *
1143                                                         mwindow->edl->session->sample_rate /
1144                                                         mwindow->edl->local_session->zoom_sample);
1145                                                 paste_position = paste_video_position;
1146                                         }
1147                                         else if(clip && current_vtrack < clip->tracks->total_video_tracks()) {
1148                                                 w = Units::to_int64(clip->tracks->total_length() *
1149                                                         mwindow->edl->session->sample_rate /
1150                                                         mwindow->edl->local_session->zoom_sample);
1151                                                 paste_position = paste_video_position;
1152                                         }
1153                                         else if(mwindow->session->current_operation == DRAG_EDIT &&
1154                                                 current_vedit < mwindow->session->drag_edits->total) {
1155                                                 Edit *edit;
1156                                                 while(current_vedit < mwindow->session->drag_edits->total &&
1157                                                         mwindow->session->drag_edits->values[current_vedit]->track->data_type != TRACK_VIDEO)
1158                                                         current_vedit++;
1159
1160                                                 if(current_vedit < mwindow->session->drag_edits->total) {
1161                                                         edit = mwindow->session->drag_edits->values[current_vedit];
1162                                                         w = Units::to_int64(edit->track->from_units(edit->length) *
1163                                                                 mwindow->edl->session->sample_rate /
1164                                                                 mwindow->edl->local_session->zoom_sample);
1165                                                         paste_position = mwindow->session->track_highlighted->
1166                                                                 from_units(drop_edit_position(&insertion,
1167                                                                         mwindow->session->drag_edit,
1168                                                                         mwindow->session->drag_edit->length));
1169                                                 }
1170                                         }
1171                                         if( paste_position >= 0 ) {
1172                                                 position = paste_position;
1173                                                 current_vedit++;
1174                                                 //draw_box = 1;
1175                                         }
1176                                         else
1177                                                 w = -1;
1178                                 }
1179
1180                                 if(w >= 0) {
1181 // Get the x coordinate
1182                                         x = Units::to_int64(position *
1183                                                 mwindow->edl->session->sample_rate /
1184                                                 mwindow->edl->local_session->zoom_sample) -
1185                                                 mwindow->edl->local_session->view_start[pane->number];
1186                                         int y = dest->y_pixel - mwindow->edl->local_session->track_start[pane->number];
1187                                         int h = dest->vertical_span(mwindow->theme);
1188
1189 //printf("TrackCanvas::draw_paste_destination 2 %d %d %d %d\n", x, y, w, h);
1190                                         if (insertion)
1191                                                 draw_highlight_insertion(x, y, w, h);
1192                                         else
1193                                                 draw_highlight_rectangle(x, y, w, h);
1194                                         if(x < -BC_INFINITY) {
1195                                                 w -= -BC_INFINITY - x;
1196                                                 x += -BC_INFINITY - x;
1197                                         }
1198                                         w = MIN(65535, w);
1199 // if(pane->number == TOP_RIGHT_PANE)
1200 // printf("TrackCanvas::draw_paste_destination %d %d %d %d %d\n",
1201 // __LINE__, x, y, w, h);
1202                                         draw_highlight_rectangle(x, y, w, h);
1203                                 }
1204                         }
1205                 }
1206         }
1207 }
1208
1209 void TrackCanvas::plugin_dimensions(Plugin *plugin, int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1210 {
1211         x = Units::round(plugin->track->from_units(plugin->startproject) *
1212                 mwindow->edl->session->sample_rate /
1213                 mwindow->edl->local_session->zoom_sample -
1214                 mwindow->edl->local_session->view_start[pane->number]);
1215         w = Units::round(plugin->track->from_units(plugin->length) *
1216                 mwindow->edl->session->sample_rate /
1217                 mwindow->edl->local_session->zoom_sample);
1218         y = plugin->track->y_pixel -
1219                 mwindow->edl->local_session->track_start[pane->number] +
1220                 mwindow->edl->local_session->zoom_track +
1221                 plugin->plugin_set->get_number() *
1222                 mwindow->theme->get_image("plugin_bg_data")->get_h();
1223         if(mwindow->edl->session->show_titles)
1224                 y += mwindow->theme->get_image("title_bg_data")->get_h();
1225         h = mwindow->theme->get_image("plugin_bg_data")->get_h();
1226 }
1227
1228 int TrackCanvas::resource_h()
1229 {
1230         return mwindow->edl->local_session->zoom_track;
1231 }
1232
1233 void TrackCanvas::draw_highlight_rectangle(int x, int y, int w, int h)
1234 {
1235
1236 // if we have to draw a highlighted rectangle completely on the left or completely on the right of the viewport,
1237 // just draw arrows, so user has indication that something is there
1238 // FIXME: get better colors
1239
1240         if (x + w <= 0)
1241         {
1242                 draw_triangle_left(0, y + h /6, h * 2/3, h * 2/3, BLACK, GREEN, YELLOW, RED, BLUE);
1243                 return;
1244         } else
1245         if (x >= get_w())
1246         {
1247                 draw_triangle_right(get_w() - h * 2/3, y + h /6, h * 2/3, h * 2/3, BLACK, GREEN, YELLOW, RED, BLUE);
1248                 return;
1249         }
1250
1251 // Fix bug in heroines & cvs version as of 22.8.2005:
1252 // If we grab when zoomed in and zoom out while dragging, when edit gets really narrow strange things start happening
1253         if (w >= 0 && w < 3) {x -= w /2; w = 3;};
1254         if(x < -10)
1255         {
1256                 w += x - -10;
1257                 x = -10;
1258         }
1259
1260         if(y < -10)
1261         {
1262                 h += y - -10;
1263                 y = -10;
1264         }
1265
1266         w = MIN(w, get_w() + 20);
1267         h = MIN(h, get_h() + 20);
1268         if(w > 0 && h > 0)
1269         {
1270                 set_color(WHITE);
1271                 set_inverse();
1272                 //draw_rectangle(x, y, w, h);
1273                 draw_rectangle(x + 1, y + 1, w - 2, h - 2);
1274                 draw_rectangle(x + 2, y + 2, w - 4, h - 4);
1275                 set_opaque();
1276                 draw_rectangle(x, y, w, h);
1277         }
1278 //if(pane->number == TOP_RIGHT_PANE)
1279 //printf("TrackCanvas::draw_highlight_rectangle %d %d %d %d %d\n", __LINE__, x, y, w, h);
1280 }
1281
1282 void TrackCanvas::draw_highlight_insertion(int x, int y, int w, int h)
1283 {
1284
1285 // if we have to draw a highlighted rectangle completely on the left or completely on the right of the viewport,
1286 // just draw arrows, so user has indication that something is there
1287 // FIXME: get better colors
1288
1289
1290
1291         int h1 = h / 8;
1292         int h2 = h / 4;
1293
1294         set_inverse();
1295
1296 /* these don't look so good
1297
1298         draw_line(x, y, x, y+h);
1299         draw_line(x - h2 * 2, y + h1*2,   x - h2, y+h1*2);
1300         draw_line(x - h2 * 2, y + h1*2+1, x - h2, y+h1*2+1);
1301         draw_line(x - h2 * 2, y + h1*6,   x - h2, y+h1*6);
1302         draw_line(x - h2 * 2, y + h1*6+1, x - h2, y+h1*6+1);
1303 */
1304         draw_triangle_right(x - h2, y + h1, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1305         draw_triangle_right(x - h2, y + h1*5, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1306
1307 /*      draw_line(x + h2 * 2, y + h1*2,   x + h2, y+h1*2);
1308         draw_line(x + h2 * 2, y + h1*2+1, x + h2, y+h1*2+1);
1309         draw_line(x + h2 * 2, y + h1*6,   x + h2, y+h1*6);
1310         draw_line(x - h2 * 2, y + h1*6+1, x + h2, y+h1*6+1);
1311 */
1312         draw_triangle_left(x, y + h1, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1313         draw_triangle_left(x, y + h1*5, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1314
1315 // draw the box centred around x
1316         x -= w / 2;
1317 // Fix bug in heroines & cvs version as of 22.8.2005:
1318 // If we grab when zoomed in and zoom out while dragging, when edit gets really narrow strange things start happening
1319         if (w >= 0 && w < 3) {x -= w /2; w = 3;};
1320         if(x < -10)
1321         {
1322                 w += x - -10;
1323                 x = -10;
1324         }
1325         if(y < -10)
1326         {
1327                 h += y - -10;
1328                 y = -10;
1329         }
1330         w = MIN(w, get_w() + 20);
1331         h = MIN(h, get_h() + 20);
1332         set_color(WHITE);
1333         set_inverse();
1334         draw_rectangle(x, y, w, h);
1335         draw_rectangle(x + 1, y + 1, w - 2, h - 2);
1336         set_opaque();
1337 //printf("TrackCanvas::draw_highlight_insertion %d %d %d %d\n", x, y, w, h);
1338 }
1339
1340 void TrackCanvas::draw_playback_cursor()
1341 {
1342 // Called before playback_cursor exists
1343 //      if(mwindow->playback_cursor && mwindow->playback_cursor->visible)
1344 //      {
1345 //              mwindow->playback_cursor->visible = 0;
1346 //              mwindow->playback_cursor->draw();
1347 //      }
1348 }
1349
1350 void TrackCanvas::get_handle_coords(Edit *edit, int64_t &x, int64_t &y, int64_t &w, int64_t &h, int side)
1351 {
1352         int handle_w = mwindow->theme->edithandlein_data[0]->get_w();
1353         int handle_h = mwindow->theme->edithandlein_data[0]->get_h();
1354
1355         edit_dimensions(edit, x, y, w, h);
1356
1357         if(mwindow->edl->session->show_titles)
1358         {
1359                 y += mwindow->theme->get_image("title_bg_data")->get_h();
1360         }
1361         else
1362         {
1363                 y = 0;
1364         }
1365
1366         if(side == EDIT_OUT)
1367         {
1368                 x += w - handle_w;
1369         }
1370
1371         h = handle_h;
1372         w = handle_w;
1373 }
1374
1375 void TrackCanvas::get_transition_coords(int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1376 {
1377 //printf("TrackCanvas::get_transition_coords 1\n");
1378 //      int transition_w = mwindow->theme->transitionhandle_data[0]->get_w();
1379 //      int transition_h = mwindow->theme->transitionhandle_data[0]->get_h();
1380         int transition_w = 30;
1381         int transition_h = 30;
1382 //printf("TrackCanvas::get_transition_coords 1\n");
1383
1384         if(mwindow->edl->session->show_titles)
1385                 y += mwindow->theme->get_image("title_bg_data")->get_h();
1386 //printf("TrackCanvas::get_transition_coords 2\n");
1387
1388         y += (h - mwindow->theme->get_image("title_bg_data")->get_h()) / 2 - transition_h / 2;
1389         x -= transition_w / 2;
1390
1391         h = transition_h;
1392         w = transition_w;
1393 }
1394
1395 void TrackCanvas::draw_highlighting()
1396 {
1397         int64_t x, y, w, h;
1398         int draw_box = 0;
1399
1400         switch(mwindow->session->current_operation)
1401         {
1402                 case DRAG_ATRANSITION:
1403                 case DRAG_VTRANSITION:
1404 //printf("TrackCanvas::draw_highlighting 1 %p %p\n",
1405 //      mwindow->session->track_highlighted, mwindow->session->edit_highlighted);
1406                         if(mwindow->session->edit_highlighted) {
1407 //printf("TrackCanvas::draw_highlighting 2\n");
1408                                 if((mwindow->session->current_operation == DRAG_ATRANSITION &&
1409                                         mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1410                                         (mwindow->session->current_operation == DRAG_VTRANSITION &&
1411                                         mwindow->session->track_highlighted->data_type == TRACK_VIDEO)) {
1412 //printf("TrackCanvas::draw_highlighting 2\n");
1413                                         edit_dimensions(mwindow->session->edit_highlighted, x, y, w, h);
1414 //printf("TrackCanvas::draw_highlighting 2\n");
1415
1416                                         if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
1417                                                 MWindowGUI::visible(y, y + h, 0, get_h())) {
1418                                                 draw_box = 1;
1419                                                 get_transition_coords(x, y, w, h);
1420                                         }
1421 //printf("TrackCanvas::draw_highlighting 3\n");
1422                                 }
1423                         }
1424                         break;
1425
1426 // Dragging a new effect from the Resource window
1427                 case DRAG_AEFFECT:
1428                 case DRAG_VEFFECT:
1429                         if(mwindow->session->track_highlighted &&
1430                                 ((mwindow->session->current_operation == DRAG_AEFFECT &&
1431                                   mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1432                                  (mwindow->session->current_operation == DRAG_VEFFECT &&
1433                                   mwindow->session->track_highlighted->data_type == TRACK_VIDEO))) {
1434 // Put it before another plugin
1435                                 if(mwindow->session->plugin_highlighted) {
1436                                         plugin_dimensions(mwindow->session->plugin_highlighted,
1437                                                 x, y, w, h);
1438 //printf("TrackCanvas::draw_highlighting 1 %d %d\n", x, w);
1439                                 }
1440 // Put it after a plugin set
1441                                 else if( mwindow->session->pluginset_highlighted &&
1442                                          mwindow->session->pluginset_highlighted->last ) {
1443                                         plugin_dimensions((Plugin*)mwindow->session->pluginset_highlighted->last,
1444                                                 x, y, w, h);
1445 //printf("TrackCanvas::draw_highlighting 1 %d %d\n", x, w);
1446                                         int64_t track_x, track_y, track_w, track_h;
1447                                         track_dimensions(mwindow->session->track_highlighted,
1448                                                 track_x, track_y, track_w, track_h);
1449
1450                                         x += w;
1451                                         w = Units::round(
1452                                                         mwindow->session->track_highlighted->get_length() *
1453                                                         mwindow->edl->session->sample_rate /
1454                                                         mwindow->edl->local_session->zoom_sample -
1455                                                         mwindow->edl->local_session->view_start[pane->number]) -
1456                                                 x;
1457 //printf("TrackCanvas::draw_highlighting 2 %d\n", w);
1458                                         if(w <= 0) w = track_w;
1459                                 }
1460                                 else {
1461                                         track_dimensions(mwindow->session->track_highlighted,
1462                                                 x, y, w, h);
1463
1464 //printf("TrackCanvas::draw_highlighting 1 %d %d %d %d\n", x, y, w, h);
1465 // Put it in a new plugin set determined by the selected range
1466                                         if(mwindow->edl->local_session->get_selectionend() >
1467                                                 mwindow->edl->local_session->get_selectionstart()) {
1468                                                 x = Units::to_int64(mwindow->edl->local_session->get_selectionstart() *
1469                                                         mwindow->edl->session->sample_rate /
1470                                                         mwindow->edl->local_session->zoom_sample -
1471                                                         mwindow->edl->local_session->view_start[pane->number]);
1472                                                 w = Units::to_int64((mwindow->edl->local_session->get_selectionend() -
1473                                                         mwindow->edl->local_session->get_selectionstart()) *
1474                                                         mwindow->edl->session->sample_rate /
1475                                                         mwindow->edl->local_session->zoom_sample);
1476                                         }
1477 // Put it in a new plugin set determined by an edit boundary
1478                                         else if(mwindow->session->edit_highlighted) {
1479                                                 int64_t temp_y, temp_h;
1480                                                 edit_dimensions(mwindow->session->edit_highlighted,
1481                                                         x, temp_y, w, temp_h);
1482                                         }
1483 // Put it at the beginning of the track in a new plugin set
1484                                 }
1485
1486                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
1487                                     MWindowGUI::visible(y, y + h, 0, get_h()) ) {
1488 //printf("TrackCanvas::draw_highlighting 1\n");
1489                                         draw_box = 1;
1490                                 }
1491                         }
1492                         break;
1493
1494                 case DRAG_ASSET:
1495                         if(mwindow->session->track_highlighted) {
1496 //                              track_dimensions(mwindow->session->track_highlighted, x, y, w, h);
1497
1498 //                              if(MWindowGUI::visible(y, y + h, 0, get_h()))
1499 //                              {
1500                                         draw_paste_destination();
1501 //                              }
1502                         }
1503                         break;
1504
1505                 case DRAG_EDIT:
1506                         if(mwindow->session->track_highlighted) {
1507 //                              track_dimensions(mwindow->session->track_highlighted, x, y, w, h);
1508 //
1509 //                              if(MWindowGUI::visible(y, y + h, 0, get_h())) {
1510                                         draw_paste_destination();
1511 //                              }
1512                         }
1513                         break;
1514
1515 // Dragging an effect from the timeline
1516                 case DRAG_AEFFECT_COPY:
1517                 case DRAG_VEFFECT_COPY:
1518                         if( (mwindow->session->plugin_highlighted || mwindow->session->track_highlighted) &&
1519                             ((mwindow->session->current_operation == DRAG_AEFFECT_COPY &&
1520                               mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1521                              (mwindow->session->current_operation == DRAG_VEFFECT_COPY &&
1522                               mwindow->session->track_highlighted->data_type == TRACK_VIDEO))) {
1523
1524                                 int64_t plugin_position = -1;
1525                                 Plugin *drag_plugin = mwindow->session->drag_plugin;
1526                                 PluginSet *hi_plugin_set = mwindow->session->pluginset_highlighted;
1527                                 Track *hi_track = mwindow->session->track_highlighted;
1528                                 Edit *hi_edit = mwindow->session->edit_highlighted;
1529 // Put it into a silence zone
1530                                 if( hi_plugin_set && hi_plugin_set->last &&
1531                                     hi_plugin_set->track == drag_plugin->track ) {
1532                                         plugin_dimensions((Plugin *)hi_plugin_set->last, x, y, w, h);
1533                                         plugin_position = drop_plugin_position(hi_plugin_set, drag_plugin);
1534                                         hi_track = drag_plugin->track;
1535                                 }
1536                                 else if( hi_track ) {
1537 // Put it in a new plugin set determined by an edit boundary, or at the start of the track
1538                                         track_dimensions(hi_track, x, y, w, h);
1539                                         plugin_position = hi_edit ? hi_edit->startproject : 0;
1540                                 }
1541
1542                                 if( plugin_position < 0 ) break;
1543
1544 // Calculate length of plugin based on data type of track and units
1545                                 double zoom_scale = (double)mwindow->edl->session->sample_rate /
1546                                                 mwindow->edl->local_session->zoom_sample;
1547                                 x = Units::round(hi_track->from_units(plugin_position) * zoom_scale) -
1548                                                 mwindow->edl->local_session->view_start[pane->number];
1549                                 w = Units::round(hi_track->from_units(drag_plugin->length) * zoom_scale);
1550
1551                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
1552                                     MWindowGUI::visible(y, y + h, 0, get_h()) ) {
1553                                         draw_box = 1;
1554                                 }
1555                         }
1556                         break;
1557
1558                 case DRAG_PLUGINKEY:
1559                         if(mwindow->session->plugin_highlighted &&
1560                            mwindow->session->current_operation == DRAG_PLUGINKEY)
1561                         {
1562 // Just highlight the plugin
1563                                 plugin_dimensions(mwindow->session->plugin_highlighted, x, y, w, h);
1564
1565                                 if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
1566                                         MWindowGUI::visible(y, y + h, 0, get_h()))
1567                                 {
1568                                         draw_box = 1;
1569                                 }
1570                         }
1571                         break;
1572
1573         }
1574
1575
1576         if(draw_box)
1577         {
1578                 draw_highlight_rectangle(x, y, w, h);
1579         }
1580 }
1581
1582 void TrackCanvas::draw_plugins()
1583 {
1584         char string[BCTEXTLEN];
1585         int current_on = 0;
1586         int current_show = 0;
1587
1588
1589 //      if(!mwindow->edl->session->show_assets) goto done;
1590
1591         for(int i = 0; i < plugin_on_toggles.total; i++)
1592                 plugin_on_toggles.values[i]->in_use = 0;
1593         for(int i = 0; i < plugin_show_toggles.total; i++)
1594                 plugin_show_toggles.values[i]->in_use = 0;
1595
1596
1597         for(Track *track = mwindow->edl->tracks->first;
1598                 track;
1599                 track = track->next)
1600         {
1601                 if(track->expand_view)
1602                 {
1603                         for(int i = 0; i < track->plugin_set.total; i++)
1604                         {
1605                                 PluginSet *pluginset = track->plugin_set.values[i];
1606
1607                                 for(Plugin *plugin = (Plugin*)pluginset->first; plugin; plugin = (Plugin*)plugin->next)
1608                                 {
1609                                         int64_t total_x, y, total_w, h;
1610                                         plugin_dimensions(plugin, total_x, y, total_w, h);
1611
1612                                         if(MWindowGUI::visible(total_x, total_x + total_w, 0, get_w()) &&
1613                                                 MWindowGUI::visible(y, y + h, 0, get_h()) &&
1614                                                 plugin->plugin_type != PLUGIN_NONE)
1615                                         {
1616                                                 int x = total_x, w = total_w, left_margin = 5;
1617                                                 int right_margin = 5;
1618                                                 if(x < 0)
1619                                                 {
1620                                                         w -= -x;
1621                                                         x = 0;
1622                                                 }
1623                                                 if(w + x > get_w()) w -= (w + x) - get_w();
1624
1625                                                 draw_3segmenth(x,
1626                                                         y,
1627                                                         w,
1628                                                         total_x,
1629                                                         total_w,
1630                                                         mwindow->theme->get_image("plugin_bg_data"),
1631                                                         0);
1632                                                 set_color(mwindow->theme->title_color);
1633                                                 set_font(mwindow->theme->title_font);
1634                                                 plugin->calculate_title(string, 0);
1635
1636 // Truncate string to int64_test visible in background
1637                                                 int len = strlen(string), j;
1638                                                 for(j = len; j >= 0; j--)
1639                                                 {
1640                                                         if(left_margin + get_text_width(mwindow->theme->title_font, string) > w)
1641                                                         {
1642                                                                 string[j] = 0;
1643                                                         }
1644                                                         else
1645                                                                 break;
1646                                                 }
1647
1648 // Justify the text on the left boundary of the edit if it is visible.
1649 // Otherwise justify it on the left side of the screen.
1650                                                 int64_t text_x = total_x + left_margin;
1651                                                 int64_t text_w = get_text_width(mwindow->theme->title_font, string, strlen(string));
1652                                                 text_x = MAX(left_margin, text_x);
1653                                                 draw_text(text_x,
1654                                                         y + get_text_ascent(mwindow->theme->title_font) + 2,
1655                                                         string,
1656                                                         strlen(string),
1657                                                         0);
1658                                                 int64_t min_x = total_x + text_w;
1659
1660
1661 // Update plugin toggles
1662                                                 int toggle_x = total_x + total_w;
1663                                                 int toggle_y = y;
1664                                                 toggle_x = MIN(get_w() - right_margin, toggle_x);
1665
1666 // On toggle
1667                                                 toggle_x -= PluginOn::calculate_w(mwindow) + 10;
1668                                                 if(toggle_x > min_x)
1669                                                 {
1670                                                         if(current_on >= plugin_on_toggles.total)
1671                                                         {
1672                                                                 PluginOn *plugin_on = new PluginOn(mwindow, toggle_x, toggle_y, plugin);
1673                                                                 add_subwindow(plugin_on);
1674                                                                 plugin_on_toggles.append(plugin_on);
1675                                                         }
1676                                                         else
1677                                                         {
1678                                                                 plugin_on_toggles.values[current_on]->update(toggle_x, toggle_y, plugin);
1679                                                         }
1680                                                         current_on++;
1681                                                 }
1682
1683 // Toggles for standalone plugins only
1684                                                 if(plugin->plugin_type == PLUGIN_STANDALONE)
1685                                                 {
1686 // Show
1687                                                         toggle_x -= PluginShow::calculate_w(mwindow) + 10;
1688                                                         if(toggle_x > min_x)
1689                                                         {
1690                                                                 if(current_show >= plugin_show_toggles.total)
1691                                                                 {
1692                                                                         PluginShow *plugin_show = new PluginShow(mwindow, toggle_x, toggle_y, plugin);
1693                                                                         add_subwindow(plugin_show);
1694                                                                         plugin_show_toggles.append(plugin_show);
1695                                                                 }
1696                                                                 else
1697                                                                 {
1698                                                                         plugin_show_toggles.values[current_show]->update(toggle_x, toggle_y, plugin);
1699                                                                 }
1700                                                                 current_show++;
1701                                                         }
1702
1703
1704
1705                                                 }
1706                                         }
1707                                 }
1708                         }
1709                 }
1710         }
1711
1712 // Remove unused toggles
1713
1714         while(current_show < plugin_show_toggles.total)
1715         {
1716                 plugin_show_toggles.remove_object_number(current_show);
1717         }
1718
1719         while(current_on < plugin_on_toggles.total)
1720         {
1721                 plugin_on_toggles.remove_object_number(current_on);
1722         }
1723
1724 }
1725
1726 void TrackCanvas::refresh_plugintoggles()
1727 {
1728         for(int i = 0; i < plugin_on_toggles.total; i++)
1729         {
1730                 PluginOn *on = plugin_on_toggles.values[i];
1731                 on->reposition_window(on->get_x(), on->get_y());
1732         }
1733         for(int i = 0; i < plugin_show_toggles.total; i++)
1734         {
1735                 PluginShow *show = plugin_show_toggles.values[i];
1736                 show->reposition_window(show->get_x(), show->get_y());
1737         }
1738 }
1739
1740 void TrackCanvas::draw_inout_points()
1741 {
1742 }
1743
1744
1745 void TrackCanvas::draw_drag_handle()
1746 {
1747         if(mwindow->session->current_operation == DRAG_EDITHANDLE2 ||
1748                 mwindow->session->current_operation == DRAG_PLUGINHANDLE2)
1749         {
1750 //printf("TrackCanvas::draw_drag_handle 1 %ld %ld\n", mwindow->session->drag_sample, mwindow->edl->local_session->view_start);
1751                 int64_t pixel1 = Units::round(mwindow->session->drag_position *
1752                         mwindow->edl->session->sample_rate /
1753                         mwindow->edl->local_session->zoom_sample -
1754                         mwindow->edl->local_session->view_start[pane->number]);
1755 //printf("TrackCanvas::draw_drag_handle 2 %d %jd\n", pane->number, pixel1);
1756                 set_color(GREEN);
1757                 set_inverse();
1758 //printf("TrackCanvas::draw_drag_handle 3\n");
1759                 draw_line(pixel1, 0, pixel1, get_h());
1760                 set_opaque();
1761 //printf("TrackCanvas::draw_drag_handle 4\n");
1762         }
1763 }
1764
1765
1766 void TrackCanvas::draw_transitions()
1767 {
1768         int64_t x, y, w, h;
1769
1770 //      if(!mwindow->edl->session->show_assets) return;
1771
1772         for(Track *track = mwindow->edl->tracks->first; track; track = track->next) {
1773                 for(Edit *edit = track->edits->first; edit; edit = edit->next) {
1774                         if(!edit->transition) continue;
1775                         edit_dimensions(edit, x, y, w, h);
1776                         int strip_x = x, strip_y = y;
1777                         if(mwindow->edl->session->show_titles)
1778                                 strip_y += mwindow->theme->get_image("title_bg_data")->get_h();
1779                         get_transition_coords(x, y, w, h);
1780                         int strip_w = Units::round(edit->track->from_units(edit->transition->length) *
1781                                 mwindow->edl->session->sample_rate / mwindow->edl->local_session->zoom_sample);
1782                         if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
1783                                 MWindowGUI::visible(y, y + h, 0, get_h()) )
1784                         {
1785                                 PluginServer *server = mwindow->scan_plugindb(edit->transition->title,
1786                                                 track->data_type);
1787                                 if( !server ) continue;
1788                                 VFrame *picon = server->get_picon();
1789                                 if( !picon ) continue;
1790                                 draw_vframe(picon, x, y, w, h, 0, 0, picon->get_w(), picon->get_h());
1791                         }
1792                         if(MWindowGUI::visible(strip_x, strip_x + strip_w, 0, get_w()) &&
1793                                 MWindowGUI::visible(strip_y, strip_y + h, 0, get_h()))
1794                         {
1795                                 int x = strip_x, w = strip_w;
1796                                 if(x < 0)
1797                                 {
1798                                         w -= -x;
1799                                         x = 0;
1800                                 }
1801                                 if(w + x > get_w()) w -= (w + x) - get_w();
1802
1803                                 draw_3segmenth( x, strip_y, w, strip_x, strip_w,
1804                                         mwindow->theme->get_image("plugin_bg_data"), 0);
1805                         }
1806                 }
1807         }
1808 }
1809
1810 void TrackCanvas::draw_loop_points()
1811 {
1812 //printf("TrackCanvas::draw_loop_points 1\n");
1813         if(mwindow->edl->local_session->loop_playback)
1814         {
1815 //printf("TrackCanvas::draw_loop_points 2\n");
1816                 int64_t x = Units::round(mwindow->edl->local_session->loop_start *
1817                         mwindow->edl->session->sample_rate /
1818                         mwindow->edl->local_session->zoom_sample -
1819                         mwindow->edl->local_session->view_start[pane->number]);
1820 //printf("TrackCanvas::draw_loop_points 3\n");
1821
1822                 if(MWindowGUI::visible(x, x + 1, 0, get_w()))
1823                 {
1824                         set_color(GREEN);
1825                         draw_line(x, 0, x, get_h());
1826                 }
1827 //printf("TrackCanvas::draw_loop_points 4\n");
1828
1829                 x = Units::round(mwindow->edl->local_session->loop_end *
1830                         mwindow->edl->session->sample_rate /
1831                         mwindow->edl->local_session->zoom_sample -
1832                         mwindow->edl->local_session->view_start[pane->number]);
1833 //printf("TrackCanvas::draw_loop_points 5\n");
1834
1835                 if(MWindowGUI::visible(x, x + 1, 0, get_w()))
1836                 {
1837                         set_color(GREEN);
1838                         draw_line(x, 0, x, get_h());
1839                 }
1840 //printf("TrackCanvas::draw_loop_points 6\n");
1841         }
1842 //printf("TrackCanvas::draw_loop_points 7\n");
1843 }
1844
1845 void TrackCanvas::draw_brender_start()
1846 {
1847         if(mwindow->preferences->use_brender)
1848         {
1849                 int64_t x = Units::round(mwindow->edl->session->brender_start *
1850                         mwindow->edl->session->sample_rate /
1851                         mwindow->edl->local_session->zoom_sample -
1852                         mwindow->edl->local_session->view_start[pane->number]);
1853
1854                 if(MWindowGUI::visible(x, x + 1, 0, get_w()))
1855                 {
1856                         set_color(RED);
1857                         draw_line(x, 0, x, get_h());
1858                 }
1859         }
1860 }
1861
1862 static int auto_colors[AUTOMATION_TOTAL] =
1863 {
1864         BLUE,
1865         RED,
1866         GREEN,
1867         BLUE,
1868         RED,
1869         GREEN,
1870         BLUE,
1871         WHITE,
1872         0,
1873         0,
1874         0,
1875         WHITE
1876 };
1877
1878 // The operations which correspond to each automation type
1879 static int auto_operations[AUTOMATION_TOTAL] =
1880 {
1881         DRAG_MUTE,
1882         DRAG_CAMERA_X,
1883         DRAG_CAMERA_Y,
1884         DRAG_CAMERA_Z,
1885         DRAG_PROJECTOR_X,
1886         DRAG_PROJECTOR_Y,
1887         DRAG_PROJECTOR_Z,
1888         DRAG_FADE,
1889         DRAG_PAN,
1890         DRAG_MODE,
1891         DRAG_MASK,
1892         DRAG_SPEED
1893 };
1894
1895 // The buttonpress operations, so nothing changes unless the mouse moves
1896 // a certain amount.  This allows the keyframe to be used to position the
1897 // insertion point without moving itself.
1898 static int pre_auto_operations[AUTOMATION_TOTAL] =
1899 {
1900         DRAG_MUTE,
1901         DRAG_CAMERA_X,
1902         DRAG_CAMERA_Y,
1903         DRAG_CAMERA_Z,
1904         DRAG_PROJECTOR_X,
1905         DRAG_PROJECTOR_Y,
1906         DRAG_PROJECTOR_Z,
1907         DRAG_FADE,
1908         DRAG_PAN_PRE,
1909         DRAG_MODE_PRE,
1910         DRAG_MASK_PRE,
1911         DRAG_SPEED
1912 };
1913
1914
1915 int TrackCanvas::do_keyframes(int cursor_x,
1916         int cursor_y,
1917         int draw,
1918         int buttonpress,
1919         int &new_cursor,
1920         int &update_cursor,
1921         int &rerender)
1922 {
1923 // Note: button 3 (right mouse button) is not eaten to allow
1924 // track context menu to appear
1925         int result = 0;
1926         EDLSession *session = mwindow->edl->session;
1927
1928
1929
1930         static BC_Pixmap *auto_pixmaps[AUTOMATION_TOTAL] =
1931         {
1932                 0, 0, 0, 0, 0, 0, 0, 0,
1933                 pankeyframe_pixmap,
1934                 modekeyframe_pixmap,
1935                 maskkeyframe_pixmap,
1936         };
1937
1938
1939
1940         for(Track *track = mwindow->edl->tracks->first;
1941                 track && !result;
1942                 track = track->next) {
1943                 Auto *auto_keyframe = 0;
1944                 Automation *automation = track->automation;
1945
1946
1947 // Handle keyframes in reverse drawing order if a button press
1948                 int start = 0;
1949                 int end = AUTOMATION_TOTAL;
1950                 int step = 1;
1951                 if(buttonpress)
1952                 {
1953                         start = AUTOMATION_TOTAL - 1;
1954                         end = -1;
1955                         step = -1;
1956                 }
1957                 for(int i = start; i != end && !result; i += step)
1958                 {
1959 // Event not trapped and automation visible
1960                         Autos *autos = automation->autos[i];
1961                         if(!result && session->auto_conf->autos[i] && autos) {
1962                                 switch(i) {
1963                                 case AUTOMATION_MODE:
1964                                 case AUTOMATION_PAN:
1965                                 case AUTOMATION_MASK:
1966                                         result = do_autos(track, automation->autos[i],
1967                                                 cursor_x, cursor_y, draw,
1968                                                 buttonpress, auto_pixmaps[i],
1969                                                 auto_keyframe, rerender);
1970                                                 break;
1971
1972                                 default: {
1973                                         switch(autos->get_type()) {
1974                                         case Autos::AUTOMATION_TYPE_FLOAT: {
1975                                                 Automation automation(0, track);
1976                                                 int grouptype = automation.autogrouptype(i, track);
1977                                                 if(draw) // Do dropshadow
1978                                                         result = do_float_autos(track, autos,
1979                                                                 cursor_x, cursor_y, draw,
1980                                                                 buttonpress, 1, 1, MDGREY,
1981                                                                 auto_keyframe, grouptype);
1982
1983                                                 result = do_float_autos(track, autos,
1984                                                         cursor_x, cursor_y, draw,
1985                                                         buttonpress, 0, 0, auto_colors[i],
1986                                                         auto_keyframe, grouptype);
1987                                                 break; }
1988
1989                                         case Autos::AUTOMATION_TYPE_INT: {
1990                                                 if(draw) // Do dropshadow
1991                                                         result = do_int_autos(track, autos,
1992                                                                 cursor_x, cursor_y, draw,
1993                                                                 buttonpress, 1, 1, MDGREY,
1994                                                                 auto_keyframe);
1995                                                 result = do_int_autos(track, autos,
1996                                                         cursor_x, cursor_y, draw,
1997                                                         buttonpress, 0, 0, auto_colors[i],
1998                                                         auto_keyframe);
1999                                                 break; }
2000                                         }
2001                                         break; }
2002                                 }
2003
2004                                 if(result)
2005                                 {
2006                                         if(mwindow->session->current_operation == auto_operations[i])
2007                                                 rerender = 1;
2008
2009 // printf("TrackCanvas::do_keyframes %d %d %d\n",
2010 // __LINE__,
2011 // mwindow->session->current_operation,
2012 // auto_operations[i]);
2013                                         if(buttonpress)
2014                                         {
2015                                                 if (buttonpress != 3)
2016                                                 {
2017                                                         if(i == AUTOMATION_FADE || i == AUTOMATION_SPEED)
2018                                                                 synchronize_autos(0,
2019                                                                         track,
2020                                                                         (FloatAuto*)mwindow->session->drag_auto,
2021                                                                         1);
2022                                                         mwindow->session->current_operation = pre_auto_operations[i];
2023                                                         update_drag_caption();
2024                                                         rerender = 1;
2025                                                 }
2026                                                 else if( auto_keyframe )
2027                                                 {
2028                                                         gui->keyframe_menu->update(automation,
2029                                                                 autos,
2030                                                                 auto_keyframe);
2031                                                         gui->keyframe_menu->activate_menu();
2032                                                         rerender = 1; // the position changes
2033                                                 }
2034                                                 if(buttonpress == 1 && ctrl_down() &&
2035                                                    AUTOMATION_TYPE_FLOAT == autos->get_type())
2036                                                         rerender = 1; // special case: curve mode changed
2037                                         }
2038                                 }
2039                         }
2040                 }
2041
2042                 if(!result &&
2043                         session->auto_conf->plugins /* &&
2044                         mwindow->edl->session->show_assets */) {
2045                         Plugin *plugin;
2046                         KeyFrame *keyframe;
2047                         result = do_plugin_autos(track, cursor_x, cursor_y,
2048                                 draw, buttonpress, plugin, keyframe);
2049                         if(result && mwindow->session->current_operation == DRAG_PLUGINKEY) {
2050                                 rerender = 1;
2051                         }
2052                         if(result && (buttonpress == 1)) {
2053                                 mwindow->session->current_operation = DRAG_PLUGINKEY_PRE;
2054                                 update_drag_caption();
2055                                 rerender = 1;
2056                         }
2057                         else if (result && (buttonpress == 3)) {
2058                                 gui->keyframe_menu->update(plugin, keyframe);
2059                                 gui->keyframe_menu->activate_menu();
2060                                 rerender = 1; // the position changes
2061                         }
2062                 }
2063         }
2064
2065 // Final pass to trap event
2066         for(int i = 0; i < AUTOMATION_TOTAL; i++) {
2067                 if(mwindow->session->current_operation == pre_auto_operations[i] ||
2068                         mwindow->session->current_operation == auto_operations[i]) {
2069                         result = 1;
2070                         break;
2071                 }
2072         }
2073
2074         if(mwindow->session->current_operation == DRAG_PLUGINKEY ||
2075                 mwindow->session->current_operation == DRAG_PLUGINKEY_PRE) {
2076                 result = 1;
2077         }
2078
2079         update_cursor = 1;
2080         if(result) {
2081                 new_cursor = UPRIGHT_ARROW_CURSOR;
2082         }
2083
2084
2085         return result;
2086 }
2087
2088 void TrackCanvas::draw_auto(Auto *current,
2089         int x,
2090         int y,
2091         int center_pixel,
2092         int zoom_track)
2093 {
2094         int x1, y1, x2, y2;
2095
2096         x1 = x - HANDLE_W / 2;
2097         x2 = x + HANDLE_W / 2;
2098         y1 = center_pixel + y - HANDLE_W / 2;
2099         y2 = center_pixel + y + HANDLE_W / 2;
2100
2101         if(y1 < center_pixel + -zoom_track / 2) y1 = center_pixel + -zoom_track / 2;
2102         if(y2 > center_pixel + zoom_track / 2) y2 = center_pixel + zoom_track / 2;
2103
2104         draw_box(x1, y1, x2 - x1, y2 - y1);
2105 }
2106
2107
2108 // This draws lines for bezier in & out controls
2109 void TrackCanvas::draw_cropped_line(int x1,
2110         int y1,
2111         int x2,
2112         int y2,
2113         int min_y,
2114         int max_y)
2115 {
2116
2117
2118 // Don't care about x since it is clipped by the window.
2119 // Put y coords in ascending order
2120         if(y2 < y1) {
2121                 y2 ^= y1; y1 ^= y2; y2 ^= y1;
2122                 x2 ^= x1; x1 ^= x2; x2 ^= x1;
2123         }
2124
2125
2126
2127         double slope = (double)(x2 - x1) / (y2 - y1);
2128 //printf("TrackCanvas::draw_cropped_line %d %d %d %d %d\n", __LINE__, x1, y1, x2, y2);
2129         if(y1 < min_y) {
2130                 x1 = (int)(x1 + (min_y - y1) * slope);
2131                 y1 = min_y;
2132         }
2133         else if(y1 >= max_y) {
2134                 x1 = (int)(x1 + (max_y - 1 - y1) * slope);
2135                 y1 = max_y - 1;
2136         }
2137
2138         if(y2 >= max_y) {
2139                 x2 = (int)(x2 + (max_y - 1 - y2) * slope);
2140                 y2 = max_y - 1;
2141         }
2142         else if(y2 < min_y) {
2143                 x2 = (int)(x2 + (min_y - y2) * slope);
2144                 y1 = min_y;
2145         }
2146
2147
2148 //printf("TrackCanvas::draw_cropped_line %d %d %d %d %d\n", __LINE__, x1, y1, x2, y2);
2149         if( y1 >= min_y && y1 < max_y &&
2150             y2 >= min_y && y2 < max_y )
2151                 draw_line(x1, y1, x2, y2);
2152 }
2153
2154
2155 void TrackCanvas::draw_floatauto(FloatAuto *current,
2156         int x,
2157         int y,
2158         int in_x,
2159         int in_y,
2160         int out_x,
2161         int out_y,
2162         int center_pixel,
2163         int zoom_track,
2164         int color)
2165 {
2166         int x1 = x - HANDLE_W / 2; // Center
2167         int x2 = x + HANDLE_W / 2;
2168         int y1 = center_pixel + y - HANDLE_H / 2;
2169         int y2 = center_pixel + y + HANDLE_H / 2;
2170         int ymin = center_pixel - zoom_track / 2;
2171         int ymax = center_pixel + zoom_track / 2;
2172         CLAMP(y1, ymin, ymax);
2173         CLAMP(y2, ymin, ymax);
2174
2175         if(y2 - 1 > y1)
2176         {
2177                 set_color(BLACK);
2178                 draw_box(x1 + 1, y1 + 1, x2 - x1, y2 - y1);
2179                 set_color(color);
2180                 draw_box(x1, y1, x2 - x1, y2 - y1);
2181         }
2182
2183 // show bezier control points (only) if this
2184 // floatauto doesn't adjust it's tangents automatically
2185         if(current->curve_mode != FloatAuto::FREE &&
2186            current->curve_mode != FloatAuto::TFREE)
2187                 return;
2188
2189         if(in_x != x)
2190                 draw_floatauto_ctrlpoint(x, y, in_x, in_y, center_pixel, zoom_track, color);
2191         if(out_x != x)
2192                 draw_floatauto_ctrlpoint(x, y, out_x, out_y, center_pixel, zoom_track, color);
2193 }
2194
2195 inline int quantize(float f) { return (int)floor(f + 0.5); }
2196
2197 inline void TrackCanvas::draw_floatauto_ctrlpoint(
2198         int x, int y, int cp_x, int cp_y, int center_pixel,
2199         int zoom_track, int color)
2200 // draw the tangent and a handle for given bézier ctrl point
2201 {
2202         bool handle_visible = (abs(cp_y) <= zoom_track / 2);
2203
2204         float slope = (float)(cp_y - y)/(cp_x - x);
2205         CLAMP(cp_y, -zoom_track / 2, zoom_track / 2);
2206         if(slope != 0)
2207                 cp_x = x + quantize((cp_y - y) / slope);
2208
2209         y    += center_pixel;
2210         cp_y += center_pixel;
2211
2212         // drawing the tangent as a dashed line...
2213         int const dash = HANDLE_W;
2214         int const gap  = HANDLE_W / 2;
2215         float sx = 3 * (cp_x - x) / 4.;
2216         float ex = 0;
2217
2218         // q is the x displacement for a unit line of slope
2219         float q = (sx > 0 ? 1 : -1) / sqrt(1 + slope * slope);
2220
2221         float dist = 1/q * sx;
2222         if( dist > dash )
2223                 ex = sx - q * dash;
2224
2225         set_color(color);
2226         do {
2227                 float sy = slope * sx, ey = slope * ex;
2228                 draw_line(quantize(sx + x), quantize(sy + y), quantize(ex + x), quantize(ey + y));
2229                 sx = ex - q * gap;
2230                 ex = sx - q * dash;
2231         } while(q*ex > 0);
2232
2233         if(handle_visible)
2234         {
2235                 int r = HANDLE_W / 2;
2236                 int cp_x1 = cp_x - r;
2237                 int cp_y1 = cp_y - r;
2238                 set_color(BLACK);
2239                 draw_disc(cp_x1, cp_y1, 2 * r, 2 * r);
2240                 set_color(color);
2241                 draw_circle(cp_x1, cp_y1, 2 * r, 2 * r);
2242         }
2243 }
2244
2245
2246 int TrackCanvas::test_auto(Auto *current,
2247         int x, int y, int center_pixel, int zoom_track,
2248         int cursor_x, int cursor_y, int buttonpress)
2249 {
2250         int x1, y1, x2, y2;
2251         int result = 0;
2252
2253         x1 = x - HANDLE_W / 2;
2254         x2 = x + HANDLE_W / 2;
2255         y1 = center_pixel + y - HANDLE_H / 2;
2256         y2 = center_pixel + y + HANDLE_H / 2;
2257         int ymin = center_pixel - zoom_track / 2;
2258         int ymax = center_pixel + zoom_track / 2;
2259         CLAMP(y1, ymin, ymax);
2260         CLAMP(y2, ymin, ymax);
2261
2262         if(cursor_x >= x1 && cursor_x < x2 && cursor_y >= y1 && cursor_y < y2)
2263         {
2264                 if(buttonpress && buttonpress != 3)
2265                 {
2266                         mwindow->session->drag_auto = current;
2267                         mwindow->session->drag_start_percentage = (float)((IntAuto*)current)->value;
2268                         // Toggle Autos don't respond to vertical zoom, they always show up
2269                         // with "on" == 100% == line on top
2270                         mwindow->session->drag_start_position = current->position;
2271                         mwindow->session->drag_origin_x = cursor_x;
2272                         mwindow->session->drag_origin_y = cursor_y;
2273                 }
2274                 result = 1;
2275         }
2276
2277         if(buttonpress && buttonpress != 3 && result)
2278         {
2279 //printf("TrackCanvas::test_auto %d\n", __LINE__);
2280                 mwindow->undo->update_undo_before();
2281         }
2282
2283         return result;
2284 }
2285
2286 // some Helpers for test_floatauto(..)
2287 // and for dragging the tangents/ctrl points
2288 inline float test_curve_line( int x0, int y0, int ctrl_x, int ctrl_y,
2289         float cursor_x, float cursor_y)
2290 {
2291 // Control point switched off?
2292         if( x0 == ctrl_x ) return 0.0;
2293         double x1 = ctrl_x-x0, y1 = ctrl_y-y0;
2294         double x = cursor_x-x0, y = cursor_y-y0;
2295 // wrong side of ctrl handle
2296         if( x*x1 < 0 ) return 0.0;
2297 // outside handle radius
2298         if( (x*x + y*y) > (x1*x1 + y1*y1) ) return 0;
2299         double xx1 = x1*x1, yy1 = y1*y1;
2300         double xx = x*x, yy = y*y;
2301 // distance squared from cursor to cursor projected to line from ctrl to handle
2302 //   along a line perpendicular to line from ctrl to handle (closest approach)
2303 // (x**2*y1**2 - 2*x*x1*y*y1 + x1**2*y**2)/(x1**2 + y1**2)
2304         double dist2 = (xx*yy1 - 2*x*x1*y*y1 + xx1*yy)/(xx1 + yy1);
2305         return dist2 < (HANDLE_W*HANDLE_W)/4. ? x/x1 : 0.;
2306 }
2307
2308
2309 inline
2310 float levered_position(float position, float ref_pos)
2311 {
2312         if( 1e-6 > fabs(ref_pos) || isnan(ref_pos))
2313                 return 0.0;
2314         return ref_pos / position;
2315 }
2316
2317
2318 float TrackCanvas::value_to_percentage(float auto_value, int autogrouptype)
2319 // transforms automation value into current display coords,
2320 // dependant on current automation display range for the given kind of automation
2321 {
2322         if(!mwindow || !mwindow->edl) return 0;
2323         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2324         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2325         float automation_range = automation_max - automation_min;
2326         if( 0 >= automation_range || isnan(auto_value) || isinf(auto_value) )
2327                 return 0;
2328         return (auto_value - automation_min) / automation_range;
2329 }
2330
2331
2332
2333 int TrackCanvas::test_floatauto(FloatAuto *current, int x, int y, int in_x,
2334         int in_y, int out_x, int out_y, int center_pixel, int zoom_track,
2335         int cursor_x, int cursor_y, int buttonpress, int autogrouptype)
2336 {
2337         int result = 0;
2338
2339         int x1 = x - HANDLE_W / 2;
2340         int x2 = x + HANDLE_W / 2;
2341         int y1 = center_pixel + y - HANDLE_W / 2;
2342         int y2 = center_pixel + y + HANDLE_W / 2;
2343         int ymin = center_pixel - zoom_track / 2;
2344         int ymax = center_pixel + zoom_track / 2;
2345         CLAMP(y1, ymin, ymax);
2346         CLAMP(y2, ymin, ymax);
2347
2348         int in_x1 = in_x - HANDLE_W / 2;
2349         int in_x2 = in_x + HANDLE_W / 2;
2350         int in_y1 = center_pixel + in_y - HANDLE_W / 2;
2351         int in_y2 = center_pixel + in_y + HANDLE_W / 2;
2352         CLAMP(in_y1, ymin, ymax);
2353         CLAMP(in_y2, ymin, ymax);
2354
2355         int out_x1 = out_x - HANDLE_W / 2;
2356         int out_x2 = out_x + HANDLE_W / 2;
2357         int out_y1 = center_pixel + out_y - HANDLE_W / 2;
2358         int out_y2 = center_pixel + out_y + HANDLE_W / 2;
2359         CLAMP(out_y1, ymin, ymax);
2360         CLAMP(out_y2, ymin, ymax);
2361
2362
2363 //printf("TrackCanvas::test_floatauto %d %d %d %d %d %d\n", cursor_x, cursor_y, x1, x2, y1, y2);
2364 // buttonpress could be the start of a drag operation
2365 #define INIT_DRAG(POS,VAL) \
2366                 mwindow->session->drag_auto = current;      \
2367                 mwindow->session->drag_origin_x = cursor_x;  \
2368                 mwindow->session->drag_origin_y = cursor_y;   \
2369                 mwindow->session->drag_start_position = (POS); \
2370                 mwindow->session->drag_start_percentage = (VAL);
2371
2372 #define WITHIN(X1,X2,Y1,Y2) (cursor_x >=(X1) && cursor_x <(X2) && cursor_y >=(Y1) && cursor_y <(Y2) )
2373
2374
2375 // without modifier we are manipulating the automation node
2376 // with ALT it's about dragging only the value of the node
2377 // with SHIFT the value snaps to the value of neighbouring nodes
2378 // CTRL indicates we are rather manipulating the tangent(s) of the node
2379
2380         if(!ctrl_down())
2381         {
2382                 if( WITHIN(x1,x2,y1,y2))
2383                 {       // cursor hits node
2384                         result = 1;
2385
2386                         if(buttonpress && (buttonpress != 3))
2387                         {
2388                                 INIT_DRAG(current->position, value_to_percentage(current->get_value(), autogrouptype))
2389                                 mwindow->session->drag_handle = 0;
2390                 }       }
2391         }
2392         else // ctrl_down()
2393         {
2394                 if( WITHIN(x1,x2,y1,y2))
2395                 {
2396                         result = 1;
2397                         if(buttonpress && (buttonpress != 3))
2398                         {
2399                                 // could be ctrl-click or ctrl-drag
2400                                 // click would cycle through tangent modes
2401                                 ((FloatAuto*)current)->toggle_curve_mode();
2402
2403                                 // drag will start dragging the tangent, if applicable
2404                                 INIT_DRAG(current->position, value_to_percentage(current->get_value(), autogrouptype))
2405                                 mwindow->session->drag_handle = 0;
2406                         }
2407                 }
2408
2409                 float lever = 0.0; // we use the tangent as a draggable lever. 1.0 is at the ctrl point
2410
2411 // Test in control
2412                 if( in_x != x && current->position > 0 &&
2413                         (FloatAuto::FREE == current->curve_mode ||
2414                          FloatAuto::TFREE == current->curve_mode))
2415 // act on in control handle only if
2416 // tangent is significant and is editable (not automatically choosen)
2417                 {
2418                         lever = test_curve_line(x, y, in_x, in_y, cursor_x, cursor_y-center_pixel);
2419  // either cursor in ctrl-point handle or cursor on tangent line
2420                         if( WITHIN(in_x1,in_x2,in_y1,in_y2) || lever > 0.0 ) {
2421                                 result = 1;
2422                                 if(buttonpress && (buttonpress != 3)) {
2423                                         if(lever == 0.0) lever=1.0; // we entered by dragging the handle...
2424 //                                      lever = 1.0;
2425                                         mwindow->session->drag_handle = 1;
2426                                         float new_invalue = current->get_value() + lever * current->get_control_in_value();
2427                                         INIT_DRAG(current->position + (int64_t)(lever * current->get_control_in_position()),
2428                                                   value_to_percentage(new_invalue, autogrouptype))
2429                                 }
2430                         }
2431                 }
2432
2433 // Test out control
2434                 if(out_x != x &&
2435                         (FloatAuto::FREE == current->curve_mode ||
2436                          FloatAuto::TFREE == current->curve_mode))
2437 // act on out control only if tangent is significant and is editable
2438                 {
2439                         lever = test_curve_line(x, y, out_x, out_y, cursor_x, cursor_y-center_pixel);
2440                         if(WITHIN(out_x1,out_x2,out_y1,out_y2) || lever > 0.0 ) {
2441                                 result = 1;
2442                                 if(buttonpress && (buttonpress != 3)) {
2443                                         if(lever == 0.0) lever=1.0;
2444 //                                      lever = 1.0;
2445                                         mwindow->session->drag_handle = 2;
2446                                         float new_outvalue = current->get_value() + lever * current->get_control_out_value();
2447                                         INIT_DRAG(current->position + (int64_t)(lever * current->get_control_out_position()),
2448                                                   value_to_percentage(new_outvalue, autogrouptype))
2449                                 }
2450                         }
2451                 }
2452         } // end ctrl_down()
2453
2454 #undef WITHIN
2455 #undef INIT_DRAG
2456
2457 // if(buttonpress)
2458 // printf("TrackCanvas::test_floatauto 2 drag_handle=%d ctrl_down=%d cursor_x=%d cursor_y=%d x1=%d x2=%d y1=%d y2=%d\n",
2459 // mwindow->session->drag_handle,
2460 // ctrl_down(),
2461 // cursor_x,
2462 // cursor_y,
2463 // x1, x2, y1, y2);
2464         if(buttonpress && (buttonpress != 3) && result)
2465         {
2466                 mwindow->undo->update_undo_before();
2467         }
2468
2469         return result;
2470 }
2471
2472
2473 // Get the float value & y for position x on the canvas
2474 #define X_TO_FLOATLINE(x) \
2475         int64_t position1 = (int64_t)(unit_start + x * zoom_units); \
2476         int64_t position2 = (int64_t)(unit_start + x * zoom_units) + 1; \
2477 /* Call by reference fails for some reason here */ \
2478         float value1 = autos->get_value(position1, PLAY_FORWARD, previous1, next1); \
2479         float value2 = autos->get_value(position2, PLAY_FORWARD, previous1, next1); \
2480         double position = unit_start + x * zoom_units; \
2481         double value = 0; \
2482         if(position2 > position1) \
2483         { \
2484                 value = value1 + \
2485                         (value2 - value1) * \
2486                         (position - position1) / \
2487                         (position2 - position1); \
2488         } \
2489         else \
2490         { \
2491                 value = value1; \
2492         } \
2493         AUTOMATIONCLAMPS(value, autogrouptype); \
2494         int y = center_pixel + \
2495                 (int)(((value - automation_min) / automation_range - 0.5) * -yscale);
2496
2497
2498 void TrackCanvas::draw_floatline(int center_pixel,
2499         FloatAuto *previous, FloatAuto *next, FloatAutos *autos,
2500         double unit_start, double zoom_units, double yscale,
2501         int x1, int y1, int x2, int y2,
2502         int color, int autogrouptype)
2503 {
2504 // Solve bezier equation for either every pixel or a certain large number of
2505 // points.
2506
2507 // Not using slope intercept
2508         x1 = MAX(0, x1);
2509         int prev_y = y1;
2510
2511
2512 // Call by reference fails for some reason here
2513         FloatAuto *previous1 = previous, *next1 = next;
2514         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2515         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2516         float automation_range = automation_max - automation_min;
2517
2518         for(int x = x1; x < x2; x++)
2519         {
2520 // Interpolate value between frames
2521                 X_TO_FLOATLINE(x)
2522
2523                 if(/* x > x1 && */
2524                         y >= center_pixel - yscale / 2 &&
2525                         y < center_pixel + yscale / 2 - 1)
2526                 {
2527 // printf("TrackCanvas::draw_floatline y=%d min=%d max=%d\n",
2528 // y,
2529 // (int)(center_pixel - yscale / 2),
2530 // (int)(center_pixel + yscale / 2 - 1));
2531
2532                         draw_line(x - 1, prev_y  , x, y   );
2533                 }
2534                 prev_y = y;
2535         }
2536 }
2537
2538
2539
2540
2541
2542 int TrackCanvas::test_floatline(int center_pixel,
2543                 FloatAutos *autos,
2544                 double unit_start,
2545                 double zoom_units,
2546                 double yscale,
2547                 int x1,
2548                 int x2,
2549                 int cursor_x,
2550                 int cursor_y,
2551                 int buttonpress,
2552                 int autogrouptype)
2553 {
2554         int result = 0;
2555
2556
2557         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2558         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2559         float automation_range = automation_max - automation_min;
2560         FloatAuto *previous1 = 0, *next1 = 0;
2561         X_TO_FLOATLINE(cursor_x);
2562
2563         if(cursor_x >= x1 &&
2564                 cursor_x < x2 &&
2565                 cursor_y >= y - HANDLE_W / 2 &&
2566                 cursor_y < y + HANDLE_W / 2 &&
2567                 !ctrl_down())
2568         {
2569                 result = 1;
2570
2571 // Menu
2572                 if(buttonpress == 3)
2573                 {
2574                 }
2575                 else
2576 // Create keyframe
2577                 if(buttonpress)
2578                 {
2579                         Auto *current;
2580                         mwindow->undo->update_undo_before();
2581                         current = mwindow->session->drag_auto = autos->insert_auto(position1);
2582                         ((FloatAuto*)current)->set_value(value);
2583                         mwindow->session->drag_start_percentage = value_to_percentage(value, autogrouptype);
2584                         mwindow->session->drag_start_position = current->position;
2585                         mwindow->session->drag_origin_x = cursor_x;
2586                         mwindow->session->drag_origin_y = cursor_y;
2587                         mwindow->session->drag_handle = 0;
2588                 }
2589         }
2590
2591
2592         return result;
2593 }
2594
2595
2596 void TrackCanvas::synchronize_autos(float change,
2597                 Track *skip, FloatAuto *fauto, int fill_gangs)
2598 {
2599 // Handles the special case of modifying a fadeauto
2600 // when there are ganged faders on several tracks
2601 // (skip and fauto may be NULL if fill_gangs==-1)
2602
2603         if( fill_gangs > 0 && skip->gang ) {
2604                 double position = skip->from_units(fauto->position);
2605                 int autoidx = fauto->autos->autoidx;
2606
2607                 for(Track *current = mwindow->edl->tracks->first; current; current = NEXT) {
2608                         if( (current->data_type == skip->data_type || get_double_click()) &&
2609                             current->gang && current->record && current != skip ) {
2610                                 int64_t current_position = current->to_units(position, 1);
2611                                 FloatAutos *fade_autos = (FloatAutos*)current->automation->autos[autoidx];
2612                                 float auto_min = mwindow->edl->local_session->automation_mins[fade_autos->autogrouptype];
2613                                 float auto_max = mwindow->edl->local_session->automation_maxs[fade_autos->autogrouptype];
2614                                 FloatAuto *previous = 0, *next = 0;
2615                                 FloatAuto *keyframe = (FloatAuto*)fade_autos->get_auto_at_position(current_position);
2616                                 if( !keyframe ) {
2617 // create keyframe on neighbouring track at the point in time given by fauto
2618                                         float init_value = fade_autos->get_value(current_position, PLAY_FORWARD, previous, next);
2619                                         float new_value = init_value + change;
2620                                         CLAMP(new_value, auto_min, auto_max);
2621                                         keyframe = (FloatAuto*)fade_autos->insert_auto(current_position);
2622                                         keyframe->set_value(new_value);
2623                                 }
2624                                 else {
2625 // keyframe exists, just change it
2626                                         float new_value = keyframe->get_value() + change;
2627                                         CLAMP(new_value, auto_min, auto_max);
2628                                         keyframe->adjust_to_new_coordinates(current_position, new_value);
2629 // need to (re)set the position, as the existing node could be on a "equivalent" position (within half a frame)
2630                                 }
2631
2632                                 mwindow->session->drag_auto_gang->append((Auto *)keyframe);
2633                         }
2634                 }
2635         }
2636         else if( !fill_gangs ) {
2637                 double position = skip->from_units(fauto->position);
2638 // Move the gangs
2639                 for (int i = 0; i < mwindow->session->drag_auto_gang->total; i++) {
2640                         FloatAuto *keyframe = (FloatAuto *)mwindow->session->drag_auto_gang->values[i];
2641                         int64_t keyframe_position = keyframe->autos->track->to_units(position, 1);
2642                         float new_value = keyframe->get_value() + change;
2643                         CLAMP(new_value,
2644                               mwindow->edl->local_session->automation_mins[keyframe->autos->autogrouptype],
2645                               mwindow->edl->local_session->automation_maxs[keyframe->autos->autogrouptype]);
2646                         keyframe->adjust_to_new_coordinates(keyframe_position, new_value);
2647                 }
2648
2649         }
2650         else {
2651 // remove the gangs
2652                 for (int i = 0; i < mwindow->session->drag_auto_gang->total; i++) {
2653                         FloatAuto *keyframe = (FloatAuto *)mwindow->session->drag_auto_gang->values[i];
2654                         keyframe->autos->remove_nonsequential(
2655                                         keyframe);
2656                 }
2657                 mwindow->session->drag_auto_gang->remove_all();
2658         }
2659 }
2660
2661
2662 void TrackCanvas::draw_toggleline(int center_pixel,
2663         int x1,
2664         int y1,
2665         int x2,
2666         int y2)
2667 {
2668         draw_line(x1, center_pixel + y1, x2, center_pixel + y1);
2669
2670         if(y2 != y1)
2671         {
2672                 draw_line(x2, center_pixel + y1, x2, center_pixel + y2);
2673         }
2674 }
2675
2676 int TrackCanvas::test_toggleline(Autos *autos,
2677         int center_pixel,
2678         int x1,
2679         int y1,
2680         int x2,
2681         int y2,
2682         int cursor_x,
2683         int cursor_y,
2684         int buttonpress)
2685 {
2686         int result = 0;
2687         if(cursor_x >= x1 && cursor_x < x2)
2688         {
2689                 int miny = center_pixel + y1 - HANDLE_W / 2;
2690                 int maxy = center_pixel + y1 + HANDLE_W / 2;
2691                 if(cursor_y >= miny && cursor_y < maxy)
2692                 {
2693                         result = 1;
2694
2695 // Menu
2696                         if(buttonpress == 3)
2697                         {
2698                         }
2699                         else
2700 // Insert keyframe
2701                         if(buttonpress)
2702                         {
2703                                 Auto *current;
2704                                 double position = (double)(cursor_x +
2705                                                 mwindow->edl->local_session->view_start[pane->number]) *
2706                                         mwindow->edl->local_session->zoom_sample /
2707                                         mwindow->edl->session->sample_rate;
2708                                 int64_t unit_position = autos->track->to_units(position, 0);
2709                                 int new_value = (int)((IntAutos*)autos)->get_automation_constant(unit_position, unit_position);
2710
2711                                 mwindow->undo->update_undo_before();
2712
2713                                 current = mwindow->session->drag_auto = autos->insert_auto(unit_position);
2714                                 ((IntAuto*)current)->value = new_value;
2715                                 // Toggle Autos don't respond to vertical zoom, they always show up
2716                                 // with "on" == 100% == line on top
2717                                 mwindow->session->drag_start_percentage = (float)new_value;
2718                                 mwindow->session->drag_start_position = current->position;
2719                                 mwindow->session->drag_origin_x = cursor_x;
2720                                 mwindow->session->drag_origin_y = cursor_y;
2721                         }
2722                 }
2723         };
2724
2725         return result;
2726 }
2727
2728 void TrackCanvas::calculate_viewport(Track *track,
2729         double &view_start,   // Seconds
2730         double &unit_start,
2731         double &view_end,     // Seconds
2732         double &unit_end,
2733         double &yscale,
2734         int &center_pixel,
2735         double &zoom_sample,
2736         double &zoom_units)
2737 {
2738         view_start = (double)mwindow->edl->local_session->view_start[pane->number] *
2739                 mwindow->edl->local_session->zoom_sample /
2740                 mwindow->edl->session->sample_rate;
2741         unit_start = track->to_doubleunits(view_start);
2742         view_end = (double)(mwindow->edl->local_session->view_start[pane->number] +
2743                 get_w()) *
2744                 mwindow->edl->local_session->zoom_sample /
2745                 mwindow->edl->session->sample_rate;
2746         unit_end = track->to_doubleunits(view_end);
2747         yscale = mwindow->edl->local_session->zoom_track;
2748 //printf("TrackCanvas::calculate_viewport yscale=%.0f\n", yscale);
2749         center_pixel = (int)(track->y_pixel -
2750                         mwindow->edl->local_session->track_start[pane->number] +
2751                         yscale / 2) +
2752                 (mwindow->edl->session->show_titles ?
2753                         mwindow->theme->get_image("title_bg_data")->get_h() :
2754                         0);
2755         zoom_sample = mwindow->edl->local_session->zoom_sample;
2756
2757         zoom_units = track->to_doubleunits(zoom_sample / mwindow->edl->session->sample_rate);
2758 }
2759
2760 float TrackCanvas::percentage_to_value(float percentage,
2761         int is_toggle,
2762         Auto *reference,
2763         int autogrouptype)
2764 {
2765         float result;
2766         if(is_toggle)
2767         {
2768                 if(percentage > 0.5)
2769                         result = 1;
2770                 else
2771                         result = 0;
2772         }
2773         else
2774         {
2775                 float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2776                 float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2777                 float automation_range = automation_max - automation_min;
2778
2779                 result = percentage * automation_range + automation_min;
2780                 if(reference)
2781                 {
2782                         FloatAuto *ptr = (FloatAuto*)reference;
2783                         result -= ptr->get_value();
2784                 }
2785 //printf("TrackCanvas::percentage_to_value %d %f\n", __LINE__, result);
2786         }
2787         return result;
2788 }
2789
2790
2791 void TrackCanvas::calculate_auto_position(double *x, double *y,
2792         double *in_x, double *in_y, double *out_x, double *out_y,
2793         Auto *current, double unit_start, double zoom_units, double yscale,
2794         int autogrouptype)
2795 {
2796         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2797         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2798         float automation_range = automation_max - automation_min;
2799         FloatAuto *ptr = (FloatAuto*)current;
2800         *x = (double)(ptr->position - unit_start) / zoom_units;
2801         *y = ((ptr->get_value() - automation_min) / automation_range - 0.5) * -yscale;
2802
2803         if(in_x) {
2804 //              *in_x = EQUIV(ptr->control_in_value, 0.0) ? *x : *x - mwindow->theme->control_pixels;
2805                 *in_x = (double)(ptr->position + ptr->get_control_in_position() - unit_start) / zoom_units;
2806         }
2807
2808         if(in_y) {
2809                 *in_y = (((ptr->get_value() + ptr->get_control_in_value()) -
2810                                 automation_min) / automation_range - 0.5) * -yscale;
2811         }
2812
2813         if(out_x) {
2814 //              *out_x = EQUIV(ptr->control_out_value, 0.0) ? *x : *x + mwindow->theme->control_pixels;
2815                 *out_x = (double)(ptr->position + ptr->get_control_out_position() - unit_start) / zoom_units;
2816         }
2817
2818         if(out_y) {
2819                 *out_y = (((ptr->get_value() + ptr->get_control_out_value()) -
2820                                  automation_min) / automation_range - 0.5) * -yscale;
2821         }
2822 }
2823
2824
2825 int TrackCanvas::do_float_autos(Track *track, Autos *autos, int cursor_x, int cursor_y,
2826                 int draw, int buttonpress, int x_offset, int y_offset, int color,
2827                 Auto* &auto_instance, int autogrouptype)
2828 {
2829         int result = 0;
2830         int center_pixel, draw_auto;
2831         double view_start, unit_start;
2832         double view_end, unit_end, yscale;
2833         double zoom_sample, zoom_units;
2834         double in_x2, in_y2, out_x2, out_y2;
2835         double slope;
2836         //int skip = 0;
2837
2838         auto_instance = 0;
2839
2840         if(draw) set_color(color);
2841
2842         calculate_viewport(track, view_start, unit_start, view_end, unit_end,
2843                         yscale, center_pixel, zoom_sample, zoom_units);
2844
2845 // Get first auto before start
2846         Auto *current = 0, *previous = 0;
2847
2848         for( current = autos->last;
2849                 current && current->position >= unit_start;
2850                 current = PREVIOUS ) ;
2851
2852         Auto *first_auto = current ? current :
2853                  autos->first ? autos->first : autos->default_auto;
2854
2855         double ax = 0, ay = 0, ax2 = 0, ay2 = 0;
2856         if( first_auto )
2857                 calculate_auto_position(&ax, &ay, 0, 0, 0, 0,
2858                         first_auto, unit_start, zoom_units, yscale, autogrouptype);
2859
2860         if( current )
2861                 current = NEXT;
2862         else {
2863                 current = autos->first;
2864                 ax = 0;
2865         }
2866
2867         do {
2868                 //skip = 0;
2869                 draw_auto = 1;
2870
2871                 if(current) {
2872                         calculate_auto_position(&ax2, &ay2, &in_x2, &in_y2, &out_x2, &out_y2,
2873                                 current, unit_start, zoom_units, yscale, autogrouptype);
2874                 }
2875                 else {
2876                         ax2 = get_w();
2877                         ay2 = ay;
2878                         //skip = 1;
2879                 }
2880
2881                 slope = ax2 > ax ? (ay2 - ay) / (ax2 - ax) : 0;
2882
2883                 if(ax2 > get_w()) {
2884                         draw_auto = 0;
2885                         ax2 = get_w();
2886                         ay2 = ay + slope * (get_w() - ax);
2887                 }
2888
2889                 if(ax < 0) {
2890                         ay = ay + slope * (0 - ax);
2891                         ax = 0;
2892                 }
2893
2894 // Draw or test handle
2895                 if( current && !result && current != autos->default_auto ) {
2896                         if( !draw && track->record ) {
2897                                 result = test_floatauto((FloatAuto*)current, (int)ax2, (int)ay2,
2898                                         (int)in_x2, (int)in_y2, (int)out_x2, (int)out_y2,
2899                                         (int)center_pixel, (int)yscale, cursor_x, cursor_y,
2900                                         buttonpress, autogrouptype);
2901                                 if( result )
2902                                         auto_instance = current;
2903                         }
2904                         if( draw && draw_auto ) {
2905                                 draw_floatauto((FloatAuto*)current, (int)ax2 + x_offset, (int)ay2,
2906                                         (int)in_x2 + x_offset, (int)in_y2,
2907                                         (int)out_x2 + x_offset, (int)out_y2,
2908                                         (int)center_pixel + y_offset, (int)yscale, color);
2909                         }
2910                 }
2911
2912 // Draw or test joining line
2913                 if( !draw && !result && track->record /* && buttonpress != 3 */ ) {
2914                         result = test_floatline(center_pixel,
2915                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
2916 // Exclude auto coverage from the end of the line.  The auto overlaps
2917                                 (int)ax, (int)ax2 - HANDLE_W / 2, cursor_x, cursor_y,
2918                                 buttonpress, autogrouptype);
2919                 }
2920                 if( draw )
2921                         draw_floatline(center_pixel, (FloatAuto*)previous, (FloatAuto*)current,
2922                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
2923                                 (int)ax, (int)ay, (int)ax2, (int)ay2,
2924                                 color, autogrouptype);
2925
2926                 if( current ) {
2927                         previous = current;
2928                         current = NEXT;
2929                 }
2930
2931                 ax = ax2;  ay = ay2;
2932         } while( current && current->position <= unit_end && !result );
2933
2934         if( ax < get_w() && !result ) {
2935                 ax2 = get_w();  ay2 = ay;
2936                 if(!draw && track->record /* && buttonpress != 3 */ ) {
2937                         result = test_floatline(center_pixel,
2938                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
2939                                 (int)ax, (int)ax2, cursor_x, cursor_y,
2940                                 buttonpress, autogrouptype);
2941                 }
2942                 if( draw )
2943                         draw_floatline(center_pixel,
2944                                 (FloatAuto*)previous, (FloatAuto*)current,
2945                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
2946                                 (int)ax, (int)ay, (int)ax2, (int)ay2,
2947                                 color, autogrouptype);
2948         }
2949
2950         return result;
2951 }
2952
2953
2954 int TrackCanvas::do_int_autos(Track *track,
2955                 Autos *autos,
2956                 int cursor_x,
2957                 int cursor_y,
2958                 int draw,
2959                 int buttonpress,
2960                 int x_offset,
2961                 int y_offset,
2962                 int color,
2963                 Auto *&auto_instance)
2964 {
2965         int result = 0;
2966         double view_start;
2967         double unit_start;
2968         double view_end;
2969         double unit_end;
2970         double yscale;
2971         int center_pixel;
2972         double zoom_sample;
2973         double zoom_units;
2974         double ax, ay, ax2, ay2;
2975
2976         auto_instance = 0;
2977
2978         if(draw) set_color(color);
2979
2980         calculate_viewport(track,
2981                 view_start,
2982                 unit_start,
2983                 view_end,
2984                 unit_end,
2985                 yscale,
2986                 center_pixel,
2987                 zoom_sample,
2988                 zoom_units);
2989
2990
2991         double high = -yscale * 0.8 / 2;
2992         double low = yscale * 0.8 / 2;
2993
2994 // Get first auto before start
2995         Auto *current;
2996         for(current = autos->last; current && current->position >= unit_start; current = PREVIOUS)
2997                 ;
2998
2999         if(current)
3000         {
3001                 ax = 0;
3002                 ay = ((IntAuto*)current)->value > 0 ? high : low;
3003                 current = NEXT;
3004         }
3005         else
3006         {
3007                 current = autos->first ? autos->first : autos->default_auto;
3008                 if(current)
3009                 {
3010                         ax = 0;
3011                         ay = ((IntAuto*)current)->value > 0 ? high : low;
3012                 }
3013                 else
3014                 {
3015                         ax = 0;
3016                         ay = yscale;
3017                 }
3018         }
3019
3020         do
3021         {
3022                 if(current)
3023                 {
3024                         ax2 = (double)(current->position - unit_start) / zoom_units;
3025                         ay2 = ((IntAuto*)current)->value > 0 ? high : low;
3026                 }
3027                 else
3028                 {
3029                         ax2 = get_w();
3030                         ay2 = ay;
3031                 }
3032
3033                 if(ax2 > get_w()) ax2 = get_w();
3034
3035                 if(current && !result)
3036                 {
3037                         if(current != autos->default_auto)
3038                         {
3039                                 if(!draw)
3040                                 {
3041                                         if(track->record)
3042                                         {
3043                                                 result = test_auto(current,
3044                                                         (int)ax2,
3045                                                         (int)ay2,
3046                                                         (int)center_pixel,
3047                                                         (int)yscale,
3048                                                         cursor_x,
3049                                                         cursor_y,
3050                                                         buttonpress);
3051                                                 if (result)
3052                                                         auto_instance = current;
3053                                         }
3054                                 }
3055                                 else
3056                                         draw_auto(current,
3057                                                 (int)ax2 + x_offset,
3058                                                 (int)ay2 + y_offset,
3059                                                 (int)center_pixel,
3060                                                 (int)yscale);
3061                         }
3062
3063                         current = NEXT;
3064                 }
3065
3066                 if(!draw)
3067                 {
3068                         if(!result)
3069                         {
3070                                 if(track->record /* && buttonpress != 3 */)
3071                                 {
3072                                         result = test_toggleline(autos,
3073                                                 center_pixel,
3074                                                 (int)ax,
3075                                                 (int)ay,
3076                                                 (int)ax2,
3077                                                 (int)ay2,
3078                                                 cursor_x,
3079                                                 cursor_y,
3080                                                 buttonpress);
3081                                 }
3082                         }
3083                 }
3084                 else
3085                         draw_toggleline(center_pixel + y_offset,
3086                                 (int)ax,
3087                                 (int)ay,
3088                                 (int)ax2,
3089                                 (int)ay2);
3090
3091                 ax = ax2;
3092                 ay = ay2;
3093         }while(current && current->position <= unit_end && !result);
3094
3095         if(ax < get_w() && !result)
3096         {
3097                 ax2 = get_w();
3098                 ay2 = ay;
3099                 if(!draw)
3100                 {
3101                         if(track->record /* && buttonpress != 3 */)
3102                         {
3103                                 result = test_toggleline(autos,
3104                                         center_pixel,
3105                                         (int)ax,
3106                                         (int)ay,
3107                                         (int)ax2,
3108                                         (int)ay2,
3109                                         cursor_x,
3110                                         cursor_y,
3111                                         buttonpress);
3112                         }
3113                 }
3114                 else
3115                         draw_toggleline(center_pixel + y_offset,
3116                                 (int)ax,
3117                                 (int)ay,
3118                                 (int)ax2,
3119                                 (int)ay2);
3120         }
3121         return result;
3122 }
3123
3124 int TrackCanvas::do_autos(Track *track,
3125                 Autos *autos,
3126                 int cursor_x,
3127                 int cursor_y,
3128                 int draw,
3129                 int buttonpress,
3130                 BC_Pixmap *pixmap,
3131                 Auto * &auto_instance,
3132                 int &rerender)
3133 {
3134         int result = 0;
3135
3136         double view_start;
3137         double unit_start;
3138         double view_end;
3139         double unit_end;
3140         double yscale;
3141         int center_pixel;
3142         double zoom_sample;
3143         double zoom_units;
3144
3145         calculate_viewport(track,
3146                 view_start,
3147                 unit_start,
3148                 view_end,
3149                 unit_end,
3150                 yscale,
3151                 center_pixel,
3152                 zoom_sample,
3153                 zoom_units);
3154
3155         Auto *current;
3156         auto_instance = 0;
3157
3158         for(current = autos->first; current && !result; current = NEXT)
3159         {
3160                 if(current->position >= unit_start && current->position < unit_end)
3161                 {
3162                         int64_t x, y;
3163                         x = (int64_t)((double)(current->position - unit_start) /
3164                                 zoom_units - (pixmap->get_w() / 2.0 + 0.5));
3165                         y = center_pixel - pixmap->get_h() / 2;
3166
3167                         if(!draw)
3168                         {
3169                                 if(cursor_x >= x && cursor_y >= y &&
3170                                         cursor_x < x + pixmap->get_w() &&
3171                                         cursor_y < y + pixmap->get_h())
3172                                 {
3173                                         result = 1;
3174                                         auto_instance = current;
3175
3176                                         if(buttonpress && (buttonpress != 3))
3177                                         {
3178                                                 mwindow->session->drag_auto = current;
3179                                                 mwindow->session->drag_start_position = current->position;
3180                                                 mwindow->session->drag_origin_x = cursor_x;
3181                                                 mwindow->session->drag_origin_y = cursor_y;
3182
3183                                                 double position = autos->track->from_units(current->position);
3184                                                 double center = (mwindow->edl->local_session->get_selectionstart(1) +
3185                                                         mwindow->edl->local_session->get_selectionend(1)) /
3186                                                         2;
3187
3188                                                 if(!shift_down())
3189                                                 {
3190                                                         mwindow->edl->local_session->set_selectionstart(position);
3191                                                         mwindow->edl->local_session->set_selectionend(position);
3192                                                 }
3193                                                 else
3194                                                 if(position < center)
3195                                                 {
3196                                                         mwindow->edl->local_session->set_selectionstart(position);
3197                                                 }
3198                                                 else
3199                                                         mwindow->edl->local_session->set_selectionend(position);
3200
3201                                                 rerender = 1;
3202                                         }
3203                                 }
3204                         }
3205                         else
3206                                 draw_pixmap(pixmap, x, y);
3207                 }
3208         }
3209
3210
3211         return result;
3212 }
3213
3214 // so this means it is always >0 when keyframe is found
3215 int TrackCanvas::do_plugin_autos(Track *track, int cursor_x, int cursor_y,
3216                 int draw, int buttonpress, Plugin* &keyframe_plugin,
3217                 KeyFrame* &keyframe_instance)
3218 {
3219         int result = 0;
3220
3221         double view_start;
3222         double unit_start;
3223         double view_end;
3224         double unit_end;
3225         double yscale;
3226         int center_pixel;
3227         double zoom_sample;
3228         double zoom_units;
3229
3230         if(!track->expand_view) return 0;
3231
3232         calculate_viewport(track,
3233                 view_start,
3234                 unit_start,
3235                 view_end,
3236                 unit_end,
3237                 yscale,
3238                 center_pixel,
3239                 zoom_sample,
3240                 zoom_units);
3241
3242
3243
3244         for(int i = 0; i < track->plugin_set.total && !result; i++)
3245         {
3246                 PluginSet *plugin_set = track->plugin_set.values[i];
3247                 int center_pixel = (int)(track->y_pixel -
3248                         mwindow->edl->local_session->track_start[pane->number] +
3249                         mwindow->edl->local_session->zoom_track +
3250                         (i + 0.5) * mwindow->theme->get_image("plugin_bg_data")->get_h() +
3251                         (mwindow->edl->session->show_titles ? mwindow->theme->get_image("title_bg_data")->get_h() : 0));
3252
3253                 for(Plugin *plugin = (Plugin*)plugin_set->first;
3254                         plugin && !result;
3255                         plugin = (Plugin*)plugin->next)
3256                 {
3257                         for(KeyFrame *keyframe = (KeyFrame*)plugin->keyframes->first;
3258                                 keyframe && !result;
3259                                 keyframe = (KeyFrame*)keyframe->next)
3260                         {
3261 //printf("TrackCanvas::draw_plugin_autos 3 %d\n", keyframe->position);
3262                                 if(keyframe->position >= unit_start && keyframe->position < unit_end)
3263                                 {
3264                                         int64_t x = (int64_t)((keyframe->position - unit_start) / zoom_units);
3265                                         int y = center_pixel - keyframe_pixmap->get_h() / 2;
3266
3267 //printf("TrackCanvas::draw_plugin_autos 4 %d %d\n", x, center_pixel);
3268                                         if(!draw)
3269                                         {
3270                                                 if(cursor_x >= x && cursor_y >= y &&
3271                                                         cursor_x < x + keyframe_pixmap->get_w() &&
3272                                                         cursor_y < y + keyframe_pixmap->get_h())
3273                                                 {
3274                                                         result = 1;
3275                                                         keyframe_plugin = plugin;
3276                                                         keyframe_instance = keyframe;
3277
3278                                                         if(buttonpress)
3279                                                         {
3280                                                                 mwindow->session->drag_auto = keyframe;
3281                                                                 mwindow->session->drag_start_position = keyframe->position;
3282                                                                 mwindow->session->drag_origin_x = cursor_x;
3283                                                                 mwindow->session->drag_origin_y = cursor_y;
3284
3285                                                                 double position = track->from_units(keyframe->position);
3286                                                                 double center = (mwindow->edl->local_session->get_selectionstart(1) +
3287                                                                         mwindow->edl->local_session->get_selectionend(1)) /
3288                                                                         2;
3289
3290                                                                 if(!shift_down())
3291                                                                 {
3292                                                                         mwindow->edl->local_session->set_selectionstart(position);
3293                                                                         mwindow->edl->local_session->set_selectionend(position);
3294                                                                 }
3295                                                                 else
3296                                                                 if(position < center)
3297                                                                 {
3298                                                                         mwindow->edl->local_session->set_selectionstart(position);
3299                                                                 }
3300                                                                 else
3301                                                                         mwindow->edl->local_session->set_selectionend(position);
3302                                                         }
3303                                                 }
3304                                         }
3305                                         else
3306                                                 draw_pixmap(keyframe_pixmap,
3307                                                         x,
3308                                                         y);
3309                                 }
3310                         }
3311                 }
3312         }
3313
3314
3315
3316 //      if(buttonpress && buttonpress != 3 && result)
3317 //      {
3318 //              mwindow->undo->update_undo_before();
3319 //      }
3320
3321         return result;
3322 }
3323
3324 void TrackCanvas::draw_overlays()
3325 {
3326         int new_cursor, update_cursor, rerender;
3327
3328 // Move background pixmap to foreground pixmap
3329         draw_pixmap(background_pixmap,
3330                 0,
3331                 0,
3332                 get_w(),
3333                 get_h(),
3334                 0,
3335                 0);
3336
3337 // In/Out points
3338         draw_inout_points();
3339
3340 // Transitions
3341         if(mwindow->edl->session->auto_conf->transitions) draw_transitions();
3342
3343 // Plugins
3344         draw_plugins();
3345
3346 // Loop points
3347         draw_loop_points();
3348         draw_brender_start();
3349
3350 // Highlighted areas
3351         draw_highlighting();
3352
3353 // Automation
3354         do_keyframes(0, 0, 1, 0, new_cursor, update_cursor, rerender);
3355
3356 // Selection cursor
3357         if(pane->cursor) pane->cursor->restore(1);
3358
3359 // Handle dragging
3360         draw_drag_handle();
3361
3362 // Playback cursor
3363         draw_playback_cursor();
3364
3365         show_window(0);
3366 }
3367
3368 int TrackCanvas::activate()
3369 {
3370         if(!active)
3371         {
3372 //printf("TrackCanvas::activate %d %d\n", __LINE__, pane->number);
3373 //BC_Signals::dump_stack();
3374                 get_top_level()->deactivate();
3375                 active = 1;
3376                 set_active_subwindow(this);
3377                 pane->cursor->activate();
3378                 gui->focused_pane = pane->number;
3379         }
3380         return 0;
3381 }
3382
3383 int TrackCanvas::deactivate()
3384 {
3385         if(active)
3386         {
3387                 active = 0;
3388                 pane->cursor->deactivate();
3389         }
3390         return 0;
3391 }
3392
3393
3394 void TrackCanvas::update_drag_handle()
3395 {
3396         double new_position;
3397
3398         new_position =
3399                 (double)(get_cursor_x() +
3400                 mwindow->edl->local_session->view_start[pane->number]) *
3401                 mwindow->edl->local_session->zoom_sample /
3402                 mwindow->edl->session->sample_rate;
3403         new_position =
3404                 mwindow->edl->align_to_frame(new_position, 0);
3405
3406
3407         if(new_position != mwindow->session->drag_position)
3408         {
3409                 mwindow->session->drag_position = new_position;
3410                 gui->mainclock->update(new_position);
3411
3412
3413                 timebar_position = new_position;
3414                 gui->update_timebar(0);
3415 // Que the CWindow.  Doesn't do anything if selectionstart and selection end
3416 // aren't changed.
3417 //              mwindow->cwindow->update(1, 0, 0);
3418         }
3419 }
3420
3421 int TrackCanvas::update_drag_edit()
3422 {
3423         int result = 0;
3424
3425
3426
3427         return result;
3428 }
3429
3430 int TrackCanvas::get_drag_values(float *percentage,
3431         int64_t *position,
3432         int do_clamp,
3433         int cursor_x,
3434         int cursor_y,
3435         Auto *current)
3436 {
3437         //int x = cursor_x - mwindow->session->drag_origin_x;
3438         //int y = cursor_y - mwindow->session->drag_origin_y;
3439         *percentage = 0;
3440         *position = 0;
3441
3442         if(!current->autos->track->record) return 1;
3443         double view_start;
3444         double unit_start;
3445         double view_end;
3446         double unit_end;
3447         double yscale;
3448         int center_pixel;
3449         double zoom_sample;
3450         double zoom_units;
3451
3452         calculate_viewport(current->autos->track,
3453                 view_start,
3454                 unit_start,
3455                 view_end,
3456                 unit_end,
3457                 yscale,
3458                 center_pixel,
3459                 zoom_sample,
3460                 zoom_units);
3461
3462         *percentage = (float)(mwindow->session->drag_origin_y - cursor_y) /
3463                 yscale +
3464                 mwindow->session->drag_start_percentage;
3465         if(do_clamp) CLAMP(*percentage, 0, 1);
3466
3467         *position = Units::to_int64(zoom_units *
3468                 (cursor_x - mwindow->session->drag_origin_x) +
3469                 mwindow->session->drag_start_position + 0.5);
3470
3471         if((do_clamp) && *position < 0) *position = 0;
3472         return 0;
3473 }
3474
3475
3476 #define UPDATE_DRAG_HEAD(do_clamp) \
3477         int result = 0, center_pixel; \
3478         if(!current->autos->track->record) return 0; \
3479         double view_start, unit_start, view_end, unit_end; \
3480         double yscale, zoom_sample, zoom_units; \
3481  \
3482         calculate_viewport(current->autos->track,  \
3483                 view_start, unit_start, view_end, unit_end, \
3484                 yscale, center_pixel, zoom_sample, zoom_units); \
3485  \
3486         float percentage = (float)(mwindow->session->drag_origin_y - cursor_y) / \
3487                 yscale +  mwindow->session->drag_start_percentage; \
3488         if(do_clamp) CLAMP(percentage, 0, 1); \
3489  \
3490         int64_t position = Units::to_int64(zoom_units * \
3491                 (cursor_x - mwindow->session->drag_origin_x) + \
3492                 mwindow->session->drag_start_position); \
3493         if((do_clamp) && position < 0) position = 0;
3494
3495
3496 int TrackCanvas::update_drag_floatauto(int cursor_x, int cursor_y)
3497 {
3498         FloatAuto *current = (FloatAuto*)mwindow->session->drag_auto;
3499
3500         UPDATE_DRAG_HEAD(mwindow->session->drag_handle == 0);
3501         int x = cursor_x - mwindow->session->drag_origin_x;
3502         int y = cursor_y - mwindow->session->drag_origin_y;
3503         float value, old_value;
3504
3505         if( mwindow->session->drag_handle == 0 && (ctrl_down() && !shift_down()) ) {
3506 // not really editing the node, rather start editing the curve
3507 // tangent is editable and drag movement is significant
3508                 if( (FloatAuto::FREE == current->curve_mode ||
3509                      FloatAuto::TFREE==current->curve_mode) &&
3510                     (fabs(x) > HANDLE_W / 2 || fabs(y) > HANDLE_W / 2))
3511                         mwindow->session->drag_handle = x < 0 ? 1 : 2;
3512         }
3513
3514         switch(mwindow->session->drag_handle) {
3515         case 0: // Center
3516 // Snap to nearby values
3517                 old_value = current->get_value();
3518                 if(shift_down()) {
3519                         double value1, value2, distance1, distance2;
3520
3521                         if(current->previous) {
3522                                 int autogrouptype = current->previous->autos->autogrouptype;
3523                                 value = percentage_to_value(percentage, 0, 0, autogrouptype);
3524                                 value1 = ((FloatAuto*)current->previous)->get_value();
3525                                 distance1 = fabs(value - value1);
3526                                 current->set_value(value1);
3527                         }
3528
3529                         if(current->next) {
3530                                 int autogrouptype = current->next->autos->autogrouptype;
3531                                 value = percentage_to_value(percentage, 0, 0, autogrouptype);
3532                                 value2 = ((FloatAuto*)current->next)->get_value();
3533                                 distance2 = fabs(value - value2);
3534                                 if(!current->previous || distance2 < distance1) {
3535                                         current->set_value(value2);
3536                                 }
3537                         }
3538
3539                         if(!current->previous && !current->next) {
3540                                 current->set_value( ((FloatAutos*)current->autos)->default_);
3541                         }
3542                         value = current->get_value();
3543                 }
3544                 else {
3545                         int autogrouptype = current->autos->autogrouptype;
3546                         value = percentage_to_value(percentage, 0, 0, autogrouptype);
3547                 }
3548
3549                 if(alt_down() && !shift_down())
3550 // ALT constrains movement: fixed position, only changing the value
3551                         position = mwindow->session->drag_start_position;
3552
3553                 if(value != old_value || position != current->position) {
3554                         result = 1;
3555                         float change = value - old_value;
3556                         current->adjust_to_new_coordinates(position, value);
3557                         synchronize_autos(change, current->autos->track, current, 0);
3558                         show_message(current, 1,", %.2f", current->get_value());
3559                 }
3560                 break;
3561
3562 // In control
3563         case 1: {
3564                 int autogrouptype = current->autos->autogrouptype;
3565                 value = percentage_to_value(percentage, 0, current, autogrouptype);
3566                 if(value != current->get_control_in_value())
3567                 {
3568                         result = 1;
3569                         // note: (position,value) need not be at the location of the ctrl point,
3570                         // but could be somewhere in between on the curve (or even outward or
3571                         // on the opposit side). We set the new control point such as
3572                         // to point the curve through (position,value)
3573                         current->set_control_in_value(
3574                                 value * levered_position(position - current->position,
3575                                                          current->get_control_in_position()));
3576                         synchronize_autos(0, current->autos->track, current, 0);
3577                         show_message(current, 1,", %.2f", current->get_control_in_value());
3578                 }
3579                 break; }
3580
3581 // Out control
3582         case 2: {
3583                 int autogrouptype = current->autos->autogrouptype;
3584                 value = percentage_to_value(percentage, 0, current, autogrouptype);
3585                 if(value != current->get_control_out_value()) {
3586                         result = 1;
3587                         current->set_control_out_value(
3588                                 value * levered_position(position - current->position,
3589                                                          current->get_control_out_position()));
3590                         synchronize_autos(0, current->autos->track, current, 0);
3591                         show_message(current, 1,", %.2f", current->get_control_out_value());
3592                 }
3593                 break; }
3594         }
3595
3596         return result;
3597 }
3598
3599 int TrackCanvas::update_drag_toggleauto(int cursor_x, int cursor_y)
3600 {
3601         IntAuto *current = (IntAuto*)mwindow->session->drag_auto;
3602
3603         UPDATE_DRAG_HEAD(1);
3604         int value = (int)percentage_to_value(percentage, 1, 0, AUTOGROUPTYPE_INT255);
3605
3606         if(value != current->value || position != current->position)
3607         {
3608                 result = 1;
3609                 current->value = value;
3610                 current->position = position;
3611                 show_message(current, 0,", %d", current->value);
3612         }
3613
3614         return result;
3615 }
3616
3617 // Autos which can't change value through dragging.
3618
3619 int TrackCanvas::update_drag_auto(int cursor_x, int cursor_y)
3620 {
3621         Auto *current = (Auto*)mwindow->session->drag_auto;
3622
3623         UPDATE_DRAG_HEAD(1)
3624         if(position != current->position)
3625         {
3626                 result = 1;
3627                 current->position = position;
3628                 show_message(current, 0,"");
3629
3630                 double position_f = current->autos->track->from_units(current->position);
3631                 double center_f = (mwindow->edl->local_session->get_selectionstart(1) +
3632                         mwindow->edl->local_session->get_selectionend(1)) /
3633                         2;
3634                 if(!shift_down())
3635                 {
3636                         mwindow->edl->local_session->set_selectionstart(position_f);
3637                         mwindow->edl->local_session->set_selectionend(position_f);
3638                 }
3639                 else
3640                 if(position_f < center_f)
3641                 {
3642                         mwindow->edl->local_session->set_selectionstart(position_f);
3643                 }
3644                 else
3645                         mwindow->edl->local_session->set_selectionend(position_f);
3646         }
3647
3648
3649         return result;
3650 }
3651
3652 int TrackCanvas::update_drag_pluginauto(int cursor_x, int cursor_y)
3653 {
3654         KeyFrame *current = (KeyFrame*)mwindow->session->drag_auto;
3655
3656         UPDATE_DRAG_HEAD(1)
3657         if(position != current->position)
3658         {
3659 //      printf("uida: autos: %p, track: %p ta: %p\n", current->autos, current->autos->track, current->autos->track->automation);
3660                 Track *track = current->autos->track;
3661                 //PluginAutos *pluginautos = (PluginAutos *)current->autos;
3662                 PluginSet *pluginset;
3663                 Plugin *plugin = 0;
3664 // figure out the correct pluginset & correct plugin
3665                 int found = 0;
3666                 for(int i = 0; i < track->plugin_set.total; i++)
3667                 {
3668                         pluginset = track->plugin_set.values[i];
3669                         for(plugin = (Plugin *)pluginset->first; plugin; plugin = (Plugin *)plugin->next)
3670                         {
3671                                 KeyFrames *keyframes = plugin->keyframes;
3672                                 for(KeyFrame *currentkeyframe = (KeyFrame *)keyframes->first;
3673                                         currentkeyframe;
3674                                         currentkeyframe = (KeyFrame *) currentkeyframe->next)
3675                                 {
3676                                         if (currentkeyframe == current)
3677                                         {
3678                                                 found = 1;
3679                                                 break;
3680                                         }
3681
3682                                 }
3683                                 if (found) break;
3684                         }
3685                         if (found) break;
3686                 }
3687
3688                 mwindow->session->plugin_highlighted = plugin;
3689                 mwindow->session->track_highlighted = track;
3690                 result = 1;
3691                 current->position = position;
3692                 show_message(current, 0,"");
3693
3694                 double position_f = current->autos->track->from_units(current->position);
3695                 double center_f = (mwindow->edl->local_session->get_selectionstart(1) +
3696                         mwindow->edl->local_session->get_selectionend(1)) /
3697                         2;
3698                 if(!shift_down())
3699                 {
3700                         mwindow->edl->local_session->set_selectionstart(position_f);
3701                         mwindow->edl->local_session->set_selectionend(position_f);
3702                 }
3703                 else
3704                 if(position_f < center_f)
3705                 {
3706                         mwindow->edl->local_session->set_selectionstart(position_f);
3707                 }
3708                 else
3709                         mwindow->edl->local_session->set_selectionend(position_f);
3710         }
3711
3712
3713         return result;
3714 }
3715
3716 void TrackCanvas::update_drag_caption()
3717 {
3718         switch(mwindow->session->current_operation)
3719         {
3720                 case DRAG_FADE:
3721
3722                         break;
3723         }
3724 }
3725
3726
3727
3728 int TrackCanvas::cursor_motion_event()
3729 {
3730         int result = 0;
3731         int cursor_x = 0;
3732         int cursor_y = 0;
3733         int update_clock = 0;
3734         int update_zoom = 0;
3735         int update_scroll = 0;
3736         int update_overlay = 0;
3737         int update_cursor = 0;
3738         int new_cursor = 0;
3739         int rerender = 0;
3740         double position = 0.;
3741 //printf("TrackCanvas::cursor_motion_event %d\n", __LINE__);
3742
3743 // Default cursor
3744         switch(mwindow->edl->session->editing_mode)
3745         {
3746                 case EDITING_ARROW: new_cursor = ARROW_CURSOR; break;
3747                 case EDITING_IBEAM: new_cursor = IBEAM_CURSOR; break;
3748         }
3749
3750         switch(mwindow->session->current_operation)
3751         {
3752                 case DRAG_EDITHANDLE1:
3753 // Outside threshold.  Upgrade status
3754                         if(active)
3755                         {
3756                                 if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W)
3757                                 {
3758                                         mwindow->session->current_operation = DRAG_EDITHANDLE2;
3759                                         update_overlay = 1;
3760                                 }
3761                         }
3762                         break;
3763
3764                 case DRAG_EDITHANDLE2:
3765                         if(active)
3766                         {
3767                                 update_drag_handle();
3768                                 update_overlay = 1;
3769                         }
3770                         break;
3771
3772                 case DRAG_PLUGINHANDLE1:
3773                         if(active)
3774                         {
3775                                 if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W)
3776                                 {
3777                                         mwindow->session->current_operation = DRAG_PLUGINHANDLE2;
3778                                         update_overlay = 1;
3779                                 }
3780                         }
3781                         break;
3782
3783                 case DRAG_PLUGINHANDLE2:
3784                         if(active)
3785                         {
3786                                 update_drag_handle();
3787                                 update_overlay = 1;
3788                         }
3789                         break;
3790
3791 // Rubber band curves
3792                 case DRAG_FADE:
3793                 case DRAG_SPEED:
3794                 case DRAG_CZOOM:
3795                 case DRAG_PZOOM:
3796                 case DRAG_CAMERA_X:
3797                 case DRAG_CAMERA_Y:
3798                 case DRAG_CAMERA_Z:
3799                 case DRAG_PROJECTOR_X:
3800                 case DRAG_PROJECTOR_Y:
3801                 case DRAG_PROJECTOR_Z:
3802                         if(active) rerender = update_overlay =
3803                                 update_drag_floatauto(get_cursor_x(), get_cursor_y());
3804                         break;
3805
3806                 case DRAG_PLAY:
3807                         if(active) rerender = update_overlay =
3808                                 update_drag_toggleauto(get_cursor_x(), get_cursor_y());
3809                         break;
3810
3811                 case DRAG_MUTE:
3812                         if(active) rerender = update_overlay =
3813                                 update_drag_toggleauto(get_cursor_x(), get_cursor_y());
3814                         break;
3815
3816 // Keyframe icons are sticky
3817                 case DRAG_PAN_PRE:
3818                 case DRAG_MASK_PRE:
3819                 case DRAG_MODE_PRE:
3820                 case DRAG_PLUGINKEY_PRE:
3821                         if(active) {
3822                                 if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W) {
3823                                         mwindow->session->current_operation++;
3824                                         update_overlay = 1;
3825
3826                                         mwindow->undo->update_undo_before();
3827                                 }
3828                         }
3829                         break;
3830
3831                 case DRAG_PAN:
3832                 case DRAG_MASK:
3833                 case DRAG_MODE:
3834                         if(active) rerender = update_overlay =
3835                                 update_drag_auto(get_cursor_x(), get_cursor_y());
3836                         break;
3837
3838                 case DRAG_PLUGINKEY:
3839                         if(active) rerender = update_overlay =
3840                                 update_drag_pluginauto(get_cursor_x(), get_cursor_y());
3841                         break;
3842
3843                 case SELECT_REGION:
3844                         if(active) {
3845                                 cursor_x = get_cursor_x();
3846                                 cursor_y = get_cursor_y();
3847                                 position = (double)(cursor_x + mwindow->edl->local_session->view_start[pane->number]) *
3848                                         mwindow->edl->local_session->zoom_sample / mwindow->edl->session->sample_rate;
3849
3850                                 position = mwindow->edl->align_to_frame(position, 0);
3851                                 position = MAX(position, 0);
3852
3853                                 if(position < selection_midpoint) {
3854                                         mwindow->edl->local_session->set_selectionend(selection_midpoint);
3855                                         mwindow->edl->local_session->set_selectionstart(position);
3856         // Que the CWindow
3857                                         gui->unlock_window();
3858                                         mwindow->cwindow->update(1, 0, 0, 0, 1);
3859                                         gui->lock_window("TrackCanvas::cursor_motion_event 1");
3860         // Update the faders
3861                                         mwindow->update_plugin_guis();
3862                                         gui->update_patchbay();
3863                                 }
3864                                 else {
3865                                         mwindow->edl->local_session->set_selectionstart(selection_midpoint);
3866                                         mwindow->edl->local_session->set_selectionend(position);
3867         // Don't que the CWindow
3868                                 }
3869
3870                                 timebar_position = mwindow->edl->local_session->get_selectionend(1);
3871
3872                                 gui->hide_cursor(0);
3873                                 gui->draw_cursor(1);
3874                                 gui->update_timebar(0);
3875                                 gui->flash_canvas(1);
3876                                 result = 1;
3877                                 update_clock = 1;
3878                                 update_zoom = 1;
3879                                 update_scroll = 1;
3880                         }
3881                         break;
3882
3883                 default:
3884                         if(is_event_win() && cursor_inside()) {
3885 // Update clocks
3886                                 cursor_x = get_cursor_x();
3887                                 position = (double)cursor_x *
3888                                         (double)mwindow->edl->local_session->zoom_sample /
3889                                         (double)mwindow->edl->session->sample_rate +
3890                                         (double)mwindow->edl->local_session->view_start[pane->number] *
3891                                         (double)mwindow->edl->local_session->zoom_sample /
3892                                         (double)mwindow->edl->session->sample_rate;
3893                                 position = mwindow->edl->align_to_frame(position, 0);
3894                                 update_clock = 1;
3895
3896 // set all timebars
3897                                 for(int i = 0; i < TOTAL_PANES; i++)
3898                                         if(gui->pane[i]) gui->pane[i]->canvas->timebar_position = position;
3899
3900 //printf("TrackCanvas::cursor_motion_event %d %d %p %p\n", __LINE__, pane->number, pane, pane->timebar);
3901                                 gui->update_timebar(0);
3902 // Update cursor
3903                                 if(do_transitions(get_cursor_x(), get_cursor_y(),
3904                                                 0, new_cursor, update_cursor)) break;
3905                                 if(do_keyframes(get_cursor_x(), get_cursor_y(),
3906                                         0, 0, new_cursor, update_cursor, rerender)) break;
3907                                 if(do_edit_handles(get_cursor_x(), get_cursor_y(),
3908                                         0, rerender, update_overlay, new_cursor, update_cursor)) break;
3909 // Plugin boundaries
3910                                 if(do_plugin_handles(get_cursor_x(), get_cursor_y(),
3911                                         0, rerender, update_overlay, new_cursor, update_cursor)) break;
3912                                 if(do_edits(get_cursor_x(), get_cursor_y(),
3913                                         0, 0, update_overlay, rerender, new_cursor, update_cursor)) break;
3914                         }
3915                         break;
3916         }
3917
3918 //printf("TrackCanvas::cursor_motion_event 1\n");
3919         if(update_cursor && new_cursor != get_cursor())
3920         {
3921                 set_cursor(new_cursor, 0, 1);
3922         }
3923
3924 //printf("TrackCanvas::cursor_motion_event 1 %d\n", rerender);
3925         if(rerender && render_timer->get_difference() > 0.25 ) {
3926                 render_timer->update();
3927                 mwindow->restart_brender();
3928                 mwindow->sync_parameters(CHANGE_PARAMS);
3929                 mwindow->update_plugin_guis();
3930                 gui->unlock_window();
3931                 mwindow->cwindow->update(1, 0, 0, 0, 1);
3932                 gui->lock_window("TrackCanvas::cursor_motion_event 2");
3933         }
3934         if(rerender) {
3935 // Update faders
3936                 gui->update_patchbay();
3937         }
3938
3939
3940         if(update_clock) {
3941                 if(!mwindow->cwindow->playback_engine->is_playing_back)
3942                         gui->mainclock->update(position);
3943         }
3944
3945         if(update_zoom) {
3946                 gui->zoombar->update();
3947         }
3948
3949         if(update_scroll) {
3950                 if(!drag_scroll &&
3951                         (cursor_x >= get_w() || cursor_x < 0 || cursor_y >= get_h() || cursor_y < 0))
3952                         start_dragscroll();
3953                 else
3954                 if(drag_scroll &&
3955                         (cursor_x < get_w() && cursor_x >= 0 && cursor_y < get_h() && cursor_y >= 0))
3956                         stop_dragscroll();
3957         }
3958
3959         if(update_overlay) {
3960                 gui->draw_overlays(1);
3961         }
3962
3963 //printf("TrackCanvas::cursor_motion_event %d\n", __LINE__);
3964         return result;
3965 }
3966
3967 void TrackCanvas::start_dragscroll()
3968 {
3969         if(!drag_scroll) {
3970                 drag_scroll = 1;
3971                 set_repeat(BC_WindowBase::get_resources()->scroll_repeat);
3972 //printf("TrackCanvas::start_dragscroll 1\n");
3973         }
3974 }
3975
3976 void TrackCanvas::stop_dragscroll()
3977 {
3978         if(drag_scroll) {
3979                 drag_scroll = 0;
3980                 unset_repeat(BC_WindowBase::get_resources()->scroll_repeat);
3981 //printf("TrackCanvas::stop_dragscroll 1\n");
3982         }
3983 }
3984
3985 int TrackCanvas::repeat_event(int64_t duration)
3986 {
3987         if(!drag_scroll) return 0;
3988         if(duration != BC_WindowBase::get_resources()->scroll_repeat) return 0;
3989
3990         int sample_movement = 0;
3991         int track_movement = 0;
3992         int64_t x_distance = 0;
3993         int64_t y_distance = 0;
3994         double position = 0;
3995         int result = 0;
3996
3997         switch(mwindow->session->current_operation) {
3998                 case SELECT_REGION:
3999 //printf("TrackCanvas::repeat_event 1 %d\n", mwindow->edl->local_session->view_start);
4000                 if(get_cursor_x() > get_w()) {
4001                                 x_distance = get_cursor_x() - get_w();
4002                                 sample_movement = 1;
4003                 }
4004                 else if(get_cursor_x() < 0) {
4005                         x_distance = get_cursor_x();
4006                         sample_movement = 1;
4007                 }
4008
4009                 if(get_cursor_y() > get_h()) {
4010                         y_distance = get_cursor_y() - get_h();
4011                         track_movement = 1;
4012                 }
4013                 else if(get_cursor_y() < 0) {
4014                         y_distance = get_cursor_y();
4015                         track_movement = 1;
4016                 }
4017                 result = 1;
4018                 break;
4019         }
4020
4021         if(sample_movement) {
4022                 position = (double)(get_cursor_x() +
4023                         mwindow->edl->local_session->view_start[pane->number] +
4024                         x_distance) *
4025                         mwindow->edl->local_session->zoom_sample /
4026                         mwindow->edl->session->sample_rate;
4027                 position = mwindow->edl->align_to_frame(position, 0);
4028                 position = MAX(position, 0);
4029
4030 //printf("TrackCanvas::repeat_event 1 %f\n", position);
4031                 switch(mwindow->session->current_operation) {
4032                 case SELECT_REGION:
4033                         if(position < selection_midpoint) {
4034                                 mwindow->edl->local_session->set_selectionend(selection_midpoint);
4035                                 mwindow->edl->local_session->set_selectionstart(position);
4036 // Que the CWindow
4037                                 gui->unlock_window();
4038                                 mwindow->cwindow->update(1, 0, 0);
4039                                 gui->lock_window("TrackCanvas::repeat_event");
4040 // Update the faders
4041                                 mwindow->update_plugin_guis();
4042                                 gui->update_patchbay();
4043                         }
4044                         else {
4045                                 mwindow->edl->local_session->set_selectionstart(selection_midpoint);
4046                                 mwindow->edl->local_session->set_selectionend(position);
4047 // Don't que the CWindow
4048                         }
4049                         break;
4050                 }
4051
4052                 mwindow->samplemovement(
4053                         mwindow->edl->local_session->view_start[pane->number] + x_distance,
4054                         pane->number);
4055         }
4056
4057         if(track_movement) {
4058                 mwindow->trackmovement(y_distance, pane->number);
4059         }
4060
4061         return result;
4062 }
4063
4064 int TrackCanvas::button_release_event()
4065 {
4066         int redraw = 0, update_overlay = 0, result = 0;
4067
4068 // printf("TrackCanvas::button_release_event %d\n",
4069 // mwindow->session->current_operation);
4070         if(active) {
4071                 switch(mwindow->session->current_operation) {
4072                 case DRAG_EDITHANDLE2:
4073                         mwindow->session->current_operation = NO_OPERATION;
4074                         drag_scroll = 0;
4075                         result = 1;
4076
4077                         end_edithandle_selection();
4078                         break;
4079
4080                 case DRAG_EDITHANDLE1:
4081                         mwindow->session->current_operation = NO_OPERATION;
4082                         drag_scroll = 0;
4083                         result = 1;
4084                         break;
4085
4086                 case DRAG_PLUGINHANDLE2:
4087                         mwindow->session->current_operation = NO_OPERATION;
4088                         drag_scroll = 0;
4089                         result = 1;
4090
4091                         end_pluginhandle_selection();
4092                         break;
4093
4094                 case DRAG_PLUGINHANDLE1:
4095                         mwindow->session->current_operation = NO_OPERATION;
4096                         drag_scroll = 0;
4097                         result = 1;
4098                         break;
4099
4100                 case DRAG_FADE:
4101                 case DRAG_SPEED:
4102 // delete the drag_auto_gang first and remove out of order keys
4103                         synchronize_autos(0, 0, 0, -1);
4104                 case DRAG_CZOOM:
4105                 case DRAG_PZOOM:
4106                 case DRAG_PLAY:
4107                 case DRAG_MUTE:
4108                 case DRAG_MASK:
4109                 case DRAG_MODE:
4110                 case DRAG_PAN:
4111                 case DRAG_CAMERA_X:
4112                 case DRAG_CAMERA_Y:
4113                 case DRAG_CAMERA_Z:
4114                 case DRAG_PROJECTOR_X:
4115                 case DRAG_PROJECTOR_Y:
4116                 case DRAG_PROJECTOR_Z:
4117                 case DRAG_PLUGINKEY:
4118                         mwindow->session->current_operation = NO_OPERATION;
4119                         mwindow->session->drag_handle = 0;
4120 // Remove any out-of-order keyframe
4121                         if(mwindow->session->drag_auto) {
4122                                 mwindow->session->drag_auto->autos->remove_nonsequential(
4123                                                 mwindow->session->drag_auto);
4124 //                              mwindow->session->drag_auto->autos->optimize();
4125                                 update_overlay = 1;
4126                         }
4127
4128
4129                         mwindow->undo->update_undo_after(_("keyframe"), LOAD_AUTOMATION);
4130                         result = 1;
4131                         break;
4132
4133                 case DRAG_EDIT:
4134                 case DRAG_AEFFECT_COPY:
4135                 case DRAG_VEFFECT_COPY:
4136 // Trap in drag stop
4137                         break;
4138
4139
4140                 default:
4141                         if(mwindow->session->current_operation) {
4142 //                              if(mwindow->session->current_operation == SELECT_REGION) {
4143 //                                      mwindow->undo->update_undo_after(_("select"), LOAD_SESSION, 0, 0);
4144 //                              }
4145
4146                                 mwindow->session->current_operation = NO_OPERATION;
4147                                 drag_scroll = 0;
4148 // Traps button release events
4149 //                              result = 1;
4150                         }
4151                         break;
4152                 }
4153         }
4154
4155         if (result)
4156                 cursor_motion_event();
4157
4158         if(update_overlay) {
4159                 gui->draw_overlays(1);
4160         }
4161         if(redraw) {
4162                 gui->draw_canvas(NORMAL_DRAW, 0);
4163         }
4164         return result;
4165 }
4166
4167 int TrackCanvas::do_edit_handles(int cursor_x, int cursor_y, int button_press,
4168         int &rerender, int &update_overlay, int &new_cursor, int &update_cursor)
4169 {
4170         Edit *edit_result = 0;
4171         int handle_result = 0;
4172         int result = 0;
4173
4174         if(!mwindow->edl->session->show_assets) return 0;
4175
4176         for(Track *track = mwindow->edl->tracks->first;
4177                 track && !result;
4178                 track = track->next) {
4179                 for(Edit *edit = track->edits->first;
4180                         edit && !result;
4181                         edit = edit->next) {
4182                         int64_t edit_x, edit_y, edit_w, edit_h;
4183                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
4184
4185                         if(cursor_x >= edit_x && cursor_x <= edit_x + edit_w &&
4186                                 cursor_y >= edit_y && cursor_y < edit_y + edit_h) {
4187                                 if(cursor_x < edit_x + HANDLE_W) {
4188                                         edit_result = edit;
4189                                         handle_result = 0;
4190                                         result = 1;
4191                                 }
4192                                 else if(cursor_x >= edit_x + edit_w - HANDLE_W) {
4193                                         edit_result = edit;
4194                                         handle_result = 1;
4195                                         result = 1;
4196                                 }
4197                                 else {
4198                                         result = 0;
4199                                 }
4200                         }
4201                 }
4202         }
4203
4204         update_cursor = 1;
4205         if(result) {
4206                 double position = 0;
4207                 if(handle_result == 0) {
4208                         position = edit_result->track->from_units(edit_result->startproject);
4209                         new_cursor = LEFT_CURSOR;
4210                 }
4211                 else if(handle_result == 1) {
4212                         position = edit_result->track->from_units(edit_result->startproject + edit_result->length);
4213                         new_cursor = RIGHT_CURSOR;
4214                 }
4215
4216 // Reposition cursor
4217                 if(button_press) {
4218                         mwindow->session->drag_edit = edit_result;
4219                         mwindow->session->drag_handle = handle_result;
4220                         mwindow->session->drag_button = get_buttonpress() - 1;
4221                         mwindow->session->drag_position = position;
4222                         mwindow->session->current_operation = DRAG_EDITHANDLE1;
4223                         mwindow->session->drag_origin_x = get_cursor_x();
4224                         mwindow->session->drag_origin_y = get_cursor_y();
4225                         mwindow->session->drag_start = position;
4226
4227                         rerender = start_selection(position);
4228                         update_overlay = 1;
4229                 }
4230         }
4231
4232         return result;
4233 }
4234
4235 int TrackCanvas::do_plugin_handles(int cursor_x,
4236         int cursor_y,
4237         int button_press,
4238         int &rerender,
4239         int &update_overlay,
4240         int &new_cursor,
4241         int &update_cursor)
4242 {
4243         Plugin *plugin_result = 0;
4244         int handle_result = 0;
4245         int result = 0;
4246
4247 //      if(!mwindow->edl->session->show_assets) return 0;
4248
4249         for(Track *track = mwindow->edl->tracks->first;
4250                 track && !result;
4251                 track = track->next) {
4252                 for(int i = 0; i < track->plugin_set.total && !result; i++) {
4253                         PluginSet *plugin_set = track->plugin_set.values[i];
4254                         for(Plugin *plugin = (Plugin*)plugin_set->first;
4255                                 plugin && !result;
4256                                 plugin = (Plugin*)plugin->next) {
4257                                 int64_t plugin_x, plugin_y, plugin_w, plugin_h;
4258                                 plugin_dimensions(plugin, plugin_x, plugin_y, plugin_w, plugin_h);
4259
4260                                 if(cursor_x >= plugin_x && cursor_x <= plugin_x + plugin_w &&
4261                                         cursor_y >= plugin_y && cursor_y < plugin_y + plugin_h) {
4262                                         if(cursor_x < plugin_x + HANDLE_W) {
4263                                                 plugin_result = plugin;
4264                                                 handle_result = 0;
4265                                                 result = 1;
4266                                         }
4267                                         else if(cursor_x >= plugin_x + plugin_w - HANDLE_W) {
4268                                                 plugin_result = plugin;
4269                                                 handle_result = 1;
4270                                                 result = 1;
4271                                         }
4272                                 }
4273                         }
4274
4275                         if(result && shift_down())
4276                                 mwindow->session->trim_edits = plugin_set;
4277                 }
4278         }
4279
4280         update_cursor = 1;
4281         if(result) {
4282                 double position = 0;
4283                 if(handle_result == 0) {
4284                         position = plugin_result->track->from_units(plugin_result->startproject);
4285                         new_cursor = LEFT_CURSOR;
4286                 }
4287                 else if(handle_result == 1) {
4288                         position = plugin_result->track->from_units(plugin_result->startproject + plugin_result->length);
4289                         new_cursor = RIGHT_CURSOR;
4290                 }
4291
4292                 if(button_press) {
4293                         mwindow->session->drag_plugin = plugin_result;
4294                         mwindow->session->drag_handle = handle_result;
4295                         mwindow->session->drag_button = get_buttonpress() - 1;
4296                         mwindow->session->drag_position = position;
4297                         mwindow->session->current_operation = DRAG_PLUGINHANDLE1;
4298                         mwindow->session->drag_origin_x = get_cursor_x();
4299                         mwindow->session->drag_origin_y = get_cursor_y();
4300                         mwindow->session->drag_start = position;
4301
4302                         rerender = start_selection(position);
4303                         update_overlay = 1;
4304                 }
4305         }
4306
4307         return result;
4308 }
4309
4310
4311 int TrackCanvas::do_tracks(int cursor_x, int cursor_y, int button_press)
4312 {
4313         int result = 0;
4314
4315 //      if(!mwindow->edl->session->show_assets) return 0;
4316
4317         for(Track *track = mwindow->edl->tracks->first;
4318                 track && !result;
4319                 track = track->next) {
4320                 int64_t track_x, track_y, track_w, track_h;
4321                 track_dimensions(track, track_x, track_y, track_w, track_h);
4322
4323                 if(button_press && get_buttonpress() == 3 &&
4324                         cursor_y >= track_y && cursor_y < track_y + track_h) {
4325                         gui->edit_menu->update(track, 0);
4326                         gui->edit_menu->activate_menu();
4327                         result = 1;
4328                 }
4329         }
4330
4331         return result;
4332 }
4333
4334 int TrackCanvas::do_edits(int cursor_x, int cursor_y, int button_press, int drag_start,
4335         int &redraw, int &rerender, int &new_cursor, int &update_cursor)
4336 {
4337         int result = 0;
4338
4339         if(!mwindow->edl->session->show_assets) return 0;
4340
4341         for(Track *track = mwindow->edl->tracks->first; track && !result; track = track->next) {
4342
4343                 for(Edit *edit = track->edits->first; edit && !result; edit = edit->next) {
4344                         int64_t edit_x, edit_y, edit_w, edit_h;
4345                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
4346
4347 // Cursor inside a track
4348 // Cursor inside an edit
4349                         if(cursor_x >= edit_x && cursor_x < edit_x + edit_w &&
4350                                 cursor_y >= edit_y && cursor_y < edit_y + edit_h) {
4351 // Select duration of edit
4352                                 if(button_press) {
4353                                         if(get_double_click() && !drag_start) {
4354                                                 mwindow->edl->local_session->set_selectionstart(edit->track->from_units(edit->startproject));
4355                                                 mwindow->edl->local_session->set_selectionend(edit->track->from_units(edit->startproject) +
4356                                                         edit->track->from_units(edit->length));
4357                                                 if(mwindow->edl->session->cursor_on_frames)
4358                                                 {
4359                                                         mwindow->edl->local_session->set_selectionstart(
4360                                                                 mwindow->edl->align_to_frame(mwindow->edl->local_session->get_selectionstart(1), 0));
4361                                                         mwindow->edl->local_session->set_selectionend(
4362                                                                 mwindow->edl->align_to_frame(mwindow->edl->local_session->get_selectionend(1), 1));
4363                                                 }
4364                                                 redraw = 1;
4365                                                 rerender = 1;
4366                                                 update_cursor = -1;
4367                                                 result = 1;
4368                                         }
4369                                 }
4370                                 else if(drag_start && track->record) {
4371                                         if(mwindow->edl->session->editing_mode == EDITING_ARROW) {
4372 // Need to create drag window
4373                                                 mwindow->session->current_operation = DRAG_EDIT;
4374                                                 mwindow->session->drag_edit = edit;
4375 //printf("TrackCanvas::do_edits 2\n");
4376
4377 // Drag only one edit if ctrl is initially down
4378                                                 if(ctrl_down()) {
4379                                                         mwindow->session->drag_edits->remove_all();
4380                                                         mwindow->session->drag_edits->append(edit);
4381                                                 }
4382                                                 else {
4383 // Construct list of all affected edits
4384                                                         mwindow->edl->tracks->get_affected_edits(
4385                                                                 mwindow->session->drag_edits,
4386                                                                 edit->track->from_units(edit->startproject),
4387                                                                 edit->track);
4388                                                 }
4389                                                 mwindow->session->drag_origin_x = cursor_x;
4390                                                 mwindow->session->drag_origin_y = cursor_y;
4391                                                 // Where the drag started, so we know relative position inside the edit later
4392                                                 mwindow->session->drag_position = (double)cursor_x *
4393                                                         mwindow->edl->local_session->zoom_sample /
4394                                                         mwindow->edl->session->sample_rate +
4395                                                         (double)mwindow->edl->local_session->view_start[pane->number] *
4396                                                         mwindow->edl->local_session->zoom_sample /
4397                                                         mwindow->edl->session->sample_rate;
4398
4399                                                 gui->drag_popup = new BC_DragWindow(gui,
4400                                                         mwindow->theme->get_image("clip_icon") /*,
4401                                                         get_abs_cursor_x(0) - mwindow->theme->get_image("clip_icon")->get_w() / 2,
4402                                                         get_abs_cursor_y(0) - mwindow->theme->get_image("clip_icon")->get_h() / 2 */);
4403
4404                                                 result = 1;
4405                                         }
4406                                 }
4407                         }
4408                 }
4409         }
4410         return result;
4411 }
4412
4413
4414 int TrackCanvas::test_resources(int cursor_x, int cursor_y)
4415 {
4416         return 0;
4417 }
4418
4419 int TrackCanvas::do_plugins(int cursor_x, int cursor_y, int drag_start,
4420         int button_press, int &redraw, int &rerender)
4421 {
4422         Plugin *plugin = 0;
4423         int result = 0;
4424         int done = 0;
4425         int64_t x, y, w, h;
4426         Track *track = 0;
4427
4428
4429 //      if(!mwindow->edl->session->show_assets) return 0;
4430
4431
4432         for(track = mwindow->edl->tracks->first; track && !done; track = track->next) {
4433                 if(!track->expand_view) continue;
4434
4435                 for(int i = 0; i < track->plugin_set.total && !done; i++) {
4436                         // first check if plugins are visible at all
4437                         if (!track->expand_view)
4438                                 continue;
4439                         PluginSet *plugin_set = track->plugin_set.values[i];
4440                         for(plugin = (Plugin*)plugin_set->first;
4441                                 plugin && !done;
4442                                 plugin = (Plugin*)plugin->next) {
4443                                 plugin_dimensions(plugin, x, y, w, h);
4444                                 if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
4445                                         MWindowGUI::visible(y, y + h, 0, get_h())) {
4446                                         if(cursor_x >= x && cursor_x < x + w &&
4447                                                 cursor_y >= y && cursor_y < y + h) {
4448                                                 done = 1;
4449                                                 break;
4450                                         }
4451                                 }
4452                         }
4453                 }
4454         }
4455
4456         if(plugin) {
4457 // Start plugin popup
4458                 if(button_press) {
4459                         if(get_buttonpress() == 3) {
4460                                 gui->plugin_menu->update(plugin);
4461                                 gui->plugin_menu->activate_menu();
4462                                 result = 1;
4463                         }
4464                         else if (get_double_click() && !drag_start) {
4465 // Select range of plugin on doubleclick over plugin
4466                                 mwindow->edl->local_session->set_selectionstart(plugin->track->from_units(plugin->startproject));
4467                                 mwindow->edl->local_session->set_selectionend(plugin->track->from_units(plugin->startproject) +
4468                                         plugin->track->from_units(plugin->length));
4469                                 if(mwindow->edl->session->cursor_on_frames) {
4470                                         mwindow->edl->local_session->set_selectionstart(
4471                                                 mwindow->edl->align_to_frame(mwindow->edl->local_session->get_selectionstart(1), 0));
4472                                         mwindow->edl->local_session->set_selectionend(
4473                                                 mwindow->edl->align_to_frame(mwindow->edl->local_session->get_selectionend(1), 1));
4474                                 }
4475                                 rerender = 1;
4476                                 redraw = 1;
4477                                 result = 1;
4478                         }
4479                 }
4480                 else
4481 // Move plugin
4482                 if(drag_start && plugin->track->record) {
4483                         if(mwindow->edl->session->editing_mode == EDITING_ARROW) {
4484                                 if(plugin->track->data_type == TRACK_AUDIO)
4485                                         mwindow->session->current_operation = DRAG_AEFFECT_COPY;
4486                                 else if(plugin->track->data_type == TRACK_VIDEO)
4487                                         mwindow->session->current_operation = DRAG_VEFFECT_COPY;
4488
4489                                 mwindow->session->drag_plugin = plugin;
4490                                 mwindow->session->drag_origin_x = cursor_x;
4491                                 mwindow->session->drag_origin_y = cursor_y;
4492                                 // Where the drag started, so we know relative position inside the edit later
4493                                 mwindow->session->drag_position =
4494                                         (double)(cursor_x + mwindow->edl->local_session->view_start[pane->number]) *
4495                                         mwindow->edl->local_session->zoom_sample / mwindow->edl->session->sample_rate;
4496 // Create picon
4497                                 switch(plugin->plugin_type) {
4498                                 case PLUGIN_STANDALONE: {
4499                                         PluginServer *server =
4500                                                 mwindow->scan_plugindb(plugin->title, plugin->track->data_type);
4501                                         if( !server ) break;
4502                                         VFrame *frame = server->picon;
4503                                         if(!frame) {
4504                                                 if(plugin->track->data_type == TRACK_AUDIO) {
4505                                                         frame = mwindow->theme->get_image("aeffect_icon");
4506                                                 }
4507                                                 else {
4508                                                         frame = mwindow->theme->get_image("veffect_icon");
4509                                                 }
4510                                         }
4511
4512                                         gui->drag_popup = new BC_DragWindow(gui, frame /*,
4513                                                 get_abs_cursor_x(0) - frame->get_w() / 2,
4514                                                 get_abs_cursor_y(0) - frame->get_h() / 2 */);
4515                                                 break; }
4516
4517                                 case PLUGIN_SHAREDPLUGIN:
4518                                 case PLUGIN_SHAREDMODULE:
4519                                         gui->drag_popup = new BC_DragWindow(gui,
4520                                                 mwindow->theme->get_image("clip_icon") /*,
4521                                                 get_abs_cursor_x(0) - mwindow->theme->get_image("clip_icon")->get_w() / 2,
4522                                                 get_abs_cursor_y(0) - mwindow->theme->get_image("clip_icon")->get_h() / 2 */);
4523                                         break;
4524                                 }
4525
4526                                 result = 1;
4527                         }
4528                 }
4529         }
4530
4531         return result;
4532 }
4533
4534 int TrackCanvas::do_transitions(int cursor_x, int cursor_y,
4535         int button_press, int &new_cursor, int &update_cursor)
4536 {
4537         Transition *transition = 0;
4538         int result = 0;
4539         int64_t x, y, w, h;
4540
4541         if(/* !mwindow->edl->session->show_assets || */
4542                 !mwindow->edl->session->auto_conf->transitions) return 0;
4543
4544         for( Track *track = mwindow->edl->tracks->first; track && !result; track = track->next ) {
4545
4546                 for( Edit *edit = track->edits->first; edit; edit = edit->next ) {
4547                         if( edit->transition ) {
4548                                 edit_dimensions(edit, x, y, w, h);
4549                                 get_transition_coords(x, y, w, h);
4550
4551                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
4552                                         MWindowGUI::visible(y, y + h, 0, get_h()) ) {
4553                                         if( cursor_x >= x && cursor_x < x + w &&
4554                                                 cursor_y >= y && cursor_y < y + h ) {
4555                                                 transition = edit->transition;
4556                                                 result = 1;
4557                                                 break;
4558                                         }
4559                                 }
4560                         }
4561                 }
4562         }
4563
4564         update_cursor = 1;
4565         if(transition) {
4566                 if(!button_press) {
4567                         new_cursor = UPRIGHT_ARROW_CURSOR;
4568                 }
4569                 else if(get_buttonpress() == 3) {
4570                         gui->transition_menu->update(transition);
4571                         gui->transition_menu->activate_menu();
4572                 }
4573         }
4574
4575         return result;
4576 }
4577
4578 int TrackCanvas::button_press_event()
4579 {
4580         int result = 0;
4581         int cursor_x, cursor_y;
4582         int new_cursor;
4583
4584         cursor_x = get_cursor_x();
4585         cursor_y = get_cursor_y();
4586         mwindow->session->trim_edits = 0;
4587
4588         if(is_event_win() && cursor_inside()) {
4589 //              double position = (double)cursor_x *
4590 //                      mwindow->edl->local_session->zoom_sample /
4591 //                      mwindow->edl->session->sample_rate +
4592 //                      (double)mwindow->edl->local_session->view_start[pane->number] *
4593 //                      mwindow->edl->local_session->zoom_sample /
4594 //                      mwindow->edl->session->sample_rate;
4595
4596                 result = 1;
4597                 if(!active) {
4598                         activate();
4599                 }
4600
4601                 if( get_buttonpress() == LEFT_BUTTON ) {
4602                         gui->unlock_window();
4603                         gui->mbuttons->transport->handle_transport(STOP, 1, 0, 0);
4604                         gui->lock_window("TrackCanvas::button_press_event");
4605                 }
4606
4607                 int update_overlay = 0, update_cursor = 0, rerender = 0;
4608
4609                 if(get_buttonpress() == WHEEL_UP) {
4610                         if(shift_down())
4611                                 mwindow->expand_sample();
4612                         else if(ctrl_down())
4613                                 mwindow->move_left(get_w()/ 10);
4614                         else
4615                                 mwindow->move_up(get_h() / 10);
4616                 }
4617                 else if(get_buttonpress() == WHEEL_DOWN) {
4618                         if(shift_down())
4619                                 mwindow->zoom_in_sample();
4620                         else if(ctrl_down())
4621                                 mwindow->move_right(get_w() / 10);
4622                         else
4623                                 mwindow->move_down(get_h() / 10);
4624                 }
4625                 else if(get_buttonpress() == 6) {
4626                         if(ctrl_down())
4627                                 mwindow->move_left(get_w());
4628                         else if(alt_down())
4629                                 mwindow->move_left(get_w() / 20);
4630                         else
4631                                 mwindow->move_left(get_w() / 5);
4632                 }
4633                 else if(get_buttonpress() == 7) {
4634                         if(ctrl_down())
4635                                 mwindow->move_right(get_w());
4636                         else if(alt_down())
4637                                 mwindow->move_right(get_w() / 20);
4638                         else
4639                                 mwindow->move_right(get_w() / 5);
4640                 }
4641                 else {
4642                         switch(mwindow->edl->session->editing_mode) {
4643 // Test handles and resource boundaries and highlight a track
4644                         case EDITING_ARROW: {
4645                                 if( mwindow->edl->session->auto_conf->transitions &&
4646                                         do_transitions(cursor_x, cursor_y,
4647                                                 1, new_cursor, update_cursor) ) break;
4648
4649                                 if( do_keyframes(cursor_x, cursor_y,
4650                                         0, get_buttonpress(), new_cursor,
4651                                         update_cursor, rerender) ) break;
4652 // Test edit boundaries
4653                                 if( do_edit_handles(cursor_x, cursor_y,
4654                                         1, rerender, update_overlay, new_cursor,
4655                                         update_cursor) ) break;
4656 // Test plugin boundaries
4657                                 if( do_plugin_handles(cursor_x, cursor_y,
4658                                         1, rerender, update_overlay, new_cursor,
4659                                         update_cursor) ) break;
4660
4661                                 if( do_edits(cursor_x, cursor_y, 1, 0,
4662                                         update_cursor, rerender, new_cursor,
4663                                         update_cursor) ) break;
4664
4665                                 if( do_plugins(cursor_x, cursor_y, 0, 1,
4666                                         update_cursor, rerender) ) break;
4667
4668                                 if( test_resources(cursor_x, cursor_y) ) break;
4669
4670                                 if( do_tracks(cursor_x, cursor_y, 1) ) break;
4671
4672                                 result = 0;
4673                                 break; }
4674
4675 // Test handles only and select a region
4676                         case EDITING_IBEAM: {
4677                                 double position = (double)cursor_x *
4678                                         mwindow->edl->local_session->zoom_sample /
4679                                         mwindow->edl->session->sample_rate +
4680                                         (double)mwindow->edl->local_session->view_start[pane->number] *
4681                                         mwindow->edl->local_session->zoom_sample /
4682                                         mwindow->edl->session->sample_rate;
4683 //printf("TrackCanvas::button_press_event %d\n", position);
4684
4685                                 if(mwindow->edl->session->auto_conf->transitions &&
4686                                         do_transitions(cursor_x, cursor_y,
4687                                                 1, new_cursor, update_cursor)) break;
4688                                 if(do_keyframes(cursor_x, cursor_y,
4689                                         0, get_buttonpress(), new_cursor,
4690                                         update_cursor, rerender)) {
4691                                         update_overlay = 1;
4692                                         break;
4693                                 }
4694 // Test edit boundaries
4695                                 if( do_edit_handles(cursor_x, cursor_y,
4696                                         1, rerender, update_overlay, new_cursor, update_cursor) ) break;
4697 // Test plugin boundaries
4698                                 if( do_plugin_handles(cursor_x, cursor_y,
4699                                         1, rerender, update_overlay, new_cursor, update_cursor) ) break;
4700
4701                                 if( do_edits(cursor_x, cursor_y,
4702                                         1, 0, update_cursor, rerender, new_cursor, update_cursor) ) break;
4703
4704                                 if( do_plugins(cursor_x, cursor_y, 0, 1, update_cursor, rerender) ) break;
4705
4706                                 if( do_tracks(cursor_x, cursor_y, 1) ) break;
4707 // Highlight selection
4708                                 rerender = start_selection(position);
4709                                 mwindow->session->current_operation = SELECT_REGION;
4710                                 update_cursor = 1;
4711                                 break; }
4712                         }
4713                 }
4714
4715                 if( rerender ) {
4716                         gui->unlock_window();
4717                         mwindow->cwindow->update(1, 0, 0, 0, 1);
4718                         gui->lock_window("TrackCanvas::button_press_event 2");
4719 // Update faders
4720                         mwindow->update_plugin_guis();
4721                         gui->update_patchbay();
4722                 }
4723
4724                 if( update_overlay ) {
4725                         gui->draw_overlays(1);
4726                 }
4727
4728                 if( update_cursor > 0 ) {
4729                         gui->update_timebar(0);
4730                         gui->hide_cursor(0);
4731                         gui->show_cursor(1);
4732                         gui->zoombar->update();
4733                         gui->flash_canvas(1);
4734                 }
4735                 else if(update_cursor < 0) {
4736                         gui->swindow->update_selection();
4737                 }
4738         }
4739         return result;
4740 }
4741
4742 int TrackCanvas::start_selection(double position)
4743 {
4744         int rerender = 0;
4745         position = mwindow->edl->align_to_frame(position, 0);
4746
4747
4748 // Extend a border
4749         if(shift_down())
4750         {
4751                 double midpoint = (mwindow->edl->local_session->get_selectionstart(1) +
4752                         mwindow->edl->local_session->get_selectionend(1)) / 2;
4753
4754                 if(position < midpoint)
4755                 {
4756                         mwindow->edl->local_session->set_selectionstart(position);
4757                         selection_midpoint = mwindow->edl->local_session->get_selectionend(1);
4758 // Que the CWindow
4759                         rerender = 1;
4760                 }
4761                 else
4762                 {
4763                         mwindow->edl->local_session->set_selectionend(position);
4764                         selection_midpoint = mwindow->edl->local_session->get_selectionstart(1);
4765 // Don't que the CWindow for the end
4766                 }
4767         }
4768         else
4769 // Start a new selection
4770         {
4771 //printf("TrackCanvas::start_selection %f\n", position);
4772                 mwindow->edl->local_session->set_selectionstart(position);
4773                 mwindow->edl->local_session->set_selectionend(position);
4774                 selection_midpoint = position;
4775 // Que the CWindow
4776                 rerender = 1;
4777         }
4778
4779         return rerender;
4780 }
4781
4782 void TrackCanvas::end_edithandle_selection()
4783 {
4784         mwindow->modify_edithandles();
4785 }
4786
4787 void TrackCanvas::end_pluginhandle_selection()
4788 {
4789         mwindow->modify_pluginhandles();
4790 }
4791
4792
4793 double TrackCanvas::time_visible()
4794 {
4795         return (double)get_w() *
4796                 mwindow->edl->local_session->zoom_sample /
4797                 mwindow->edl->session->sample_rate;
4798 }
4799
4800
4801 void TrackCanvas::show_message(Auto *current, int show_curve_type, const char *fmt, ...)
4802 {
4803         char string[BCTEXTLEN];
4804         char *cp = string, *ep = cp + sizeof(string)-1;
4805         if( show_curve_type ) {
4806                 cp += snprintf(string, ep-cp, "%-8s ",
4807                         FloatAuto::curve_name(((FloatAuto*)current)->curve_mode));
4808         }
4809         char string2[BCTEXTLEN];
4810         Units::totext(string2,
4811                 current->autos->track->from_units(current->position),
4812                 mwindow->edl->session->time_format,
4813                 mwindow->edl->session->sample_rate,
4814                 mwindow->edl->session->frame_rate,
4815                 mwindow->edl->session->frames_per_foot);
4816         cp += snprintf(cp, ep-cp, "%s", string2);
4817         va_list ap;
4818         va_start(ap, fmt);
4819         vsnprintf(cp, ep-cp, fmt, ap);
4820         va_end(ap);
4821         gui->show_message(string);
4822 }
4823
4824 // Patchbay* TrackCanvas::get_patchbay()
4825 // {
4826 //      if(pane->patchbay) return pane->patchbay;
4827 //      if(gui->total_panes() == 2 &&
4828 //              gui->pane[TOP_LEFT_PANE] &&
4829 //              gui->pane[TOP_RIGHT_PANE])
4830 //              return gui->pane[TOP_LEFT_PANE]->patchbay;
4831 //      if(gui->total_panes() == 4)
4832 //      {
4833 //              if(pane->number == TOP_RIGHT_PANE)
4834 //                      return gui->pane[TOP_LEFT_PANE]->patchbay;
4835 //              else
4836 //                      return gui->pane[BOTTOM_LEFT_PANE]->patchbay;
4837 //      }
4838 //
4839 //      return 0;
4840 // }
4841
4842