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);