cinelerra-5.1/cinelerra/cwindowgui.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 "automation.h"
  23 #include "autos.h"
  24 #include "bcsignals.h"
  25 #include "canvas.h"
  26 #include "clip.h"
  27 #include "cpanel.h"
  28 #include "cplayback.h"
  29 #include "ctimebar.h"
  30 #include "cursors.h"
  31 #include "cwindowgui.h"
  32 #include "cwindow.h"
  33 #include "cwindowtool.h"
  34 #include "editpanel.h"
  35 #include "edl.h"
  36 #include "edlsession.h"
  37 #include "floatauto.h"
  38 #include "floatautos.h"
  39 #include "keys.h"
  40 #include "language.h"
  41 #include "localsession.h"
  42 #include "mainclock.h"
  43 #include "mainmenu.h"
  44 #include "mainundo.h"
  45 #include "mainsession.h"
  46 #include "maskauto.h"
  47 #include "maskautos.h"
  48 #include "mbuttons.h"
  49 #include "meterpanel.h"
  50 #include "mwindowgui.h"
  51 #include "mwindow.h"
  52 #include "mwindow.h"
  53 #include "playback3d.h"
  54 #include "playtransport.h"
  55 #include "theme.h"
  56 #include "trackcanvas.h"
  57 #include "tracks.h"
  58 #include "transportque.h"
  59 #include "vtrack.h"
  60
  61
  62 static double my_zoom_table[] =
  63 {
  64         0.25,
  65         0.33,
  66         0.50,
  67         0.75,
  68         1.0,
  69         1.5,
  70         2.0,
  71         3.0,
  72         4.0
  73 };
  74
  75 static int total_zooms = sizeof(my_zoom_table) / sizeof(double);
  76
  77
  78 CWindowGUI::CWindowGUI(MWindow *mwindow, CWindow *cwindow)
  79  : BC_Window(_(PROGRAM_NAME ": Compositor"),
  80         mwindow->session->cwindow_x,
  81     mwindow->session->cwindow_y,
  82     mwindow->session->cwindow_w,
  83     mwindow->session->cwindow_h,
  84     100,
  85     100,
  86     1,
  87     1,
  88     1,
  89         BC_WindowBase::get_resources()->bg_color,
  90         mwindow->get_cwindow_display())
  91 {
  92         this->mwindow = mwindow;
  93         this->cwindow = cwindow;
  94         affected_track = 0;
  95         affected_x = affected_y = affected_z = 0;
  96         mask_keyframe = 0;
  97         orig_mask_keyframe = new MaskAuto(0, 0);
  98         affected_point = 0;
  99         x_offset = y_offset = 0;
 100         x_origin = y_origin = 0;
 101         current_operation = CWINDOW_NONE;
 102         tool_panel = 0;
 103         active = 0;
 104         inactive = 0;
 105         crop_handle = -1; crop_translate = 0;
 106         crop_origin_x = crop_origin_y = 0;
 107         crop_origin_x1 = crop_origin_y1 = 0;
 108         crop_origin_x2 = crop_origin_y2 = 0;
 109         eyedrop_visible = 0;
 110         eyedrop_x = eyedrop_y = 0;
 111         ruler_origin_x = ruler_origin_y = 0;
 112         ruler_handle = -1; ruler_translate = 0;
 113         center_x = center_y = center_z = 0;
 114         control_in_x = control_in_y = 0;
 115         control_out_x = control_out_y = 0;
 116         translating_zoom = 0;
 117         highlighted = 0;
 118 }
 119
 120 CWindowGUI::~CWindowGUI()
 121 {
 122         cwindow->stop_playback(1);
 123         if(tool_panel) delete tool_panel;
 124         delete meters;
 125         delete composite_panel;
 126         delete canvas;
 127         delete transport;
 128         delete edit_panel;
 129         delete zoom_panel;
 130         delete active;
 131         delete inactive;
 132         delete orig_mask_keyframe;
 133 }
 134
 135 void CWindowGUI::create_objects()
 136 {
 137         lock_window("CWindowGUI::create_objects");
 138         set_icon(mwindow->theme->get_image("cwindow_icon"));
 139
 140         active = new BC_Pixmap(this, mwindow->theme->get_image("cwindow_active"));
 141         inactive = new BC_Pixmap(this, mwindow->theme->get_image("cwindow_inactive"));
 142
 143         mwindow->theme->get_cwindow_sizes(this, mwindow->session->cwindow_controls);
 144         mwindow->theme->draw_cwindow_bg(this);
 145         flash();
 146
 147 // Meters required by composite panel
 148         meters = new CWindowMeters(mwindow,
 149                 this,
 150                 mwindow->theme->cmeter_x,
 151                 mwindow->theme->cmeter_y,
 152                 mwindow->theme->cmeter_h);
 153         meters->create_objects();
 154
 155
 156         composite_panel = new CPanel(mwindow,
 157                 this,
 158                 mwindow->theme->ccomposite_x,
 159                 mwindow->theme->ccomposite_y,
 160                 mwindow->theme->ccomposite_w,
 161                 mwindow->theme->ccomposite_h);
 162         composite_panel->create_objects();
 163
 164         canvas = new CWindowCanvas(mwindow, this);
 165
 166         canvas->create_objects(mwindow->edl);
 167         canvas->use_cwindow();
 168
 169
 170         add_subwindow(timebar = new CTimeBar(mwindow,
 171                 this,
 172                 mwindow->theme->ctimebar_x,
 173                 mwindow->theme->ctimebar_y,
 174                 mwindow->theme->ctimebar_w,
 175                 mwindow->theme->ctimebar_h));
 176         timebar->create_objects();
 177
 178 #ifdef USE_SLIDER
 179         add_subwindow(slider = new CWindowSlider(mwindow,
 180                 cwindow,
 181                 mwindow->theme->cslider_x,
 182                 mwindow->theme->cslider_y,
 183                 mwindow->theme->cslider_w));
 184 #endif
 185
 186         transport = new CWindowTransport(mwindow,
 187                 this,
 188                 mwindow->theme->ctransport_x,
 189                 mwindow->theme->ctransport_y);
 190         transport->create_objects();
 191 #ifdef USE_SLIDER
 192         transport->set_slider(slider);
 193 #endif
 194
 195         edit_panel = new CWindowEditing(mwindow, cwindow);
 196         edit_panel->set_meters(meters);
 197         edit_panel->create_objects();
 198
 199 //      add_subwindow(clock = new MainClock(mwindow,
 200 //              mwindow->theme->ctime_x,
 201 //              mwindow->theme->ctime_y));
 202
 203         zoom_panel = new CWindowZoom(mwindow,
 204                 this,
 205                 mwindow->theme->czoom_x,
 206                 mwindow->theme->czoom_y,
 207                 mwindow->theme->czoom_w);
 208         zoom_panel->create_objects();
 209         zoom_panel->zoom_text->add_item(new BC_MenuItem(auto_zoom = _(AUTO_ZOOM)));
 210         if( !mwindow->edl->session->cwindow_scrollbars )
 211                 zoom_panel->set_text(auto_zoom);
 212
 213 //      destination = new CWindowDestination(mwindow,
 214 //              this,
 215 //              mwindow->theme->cdest_x,
 216 //              mwindow->theme->cdest_y);
 217 //      destination->create_objects();
 218
 219 // Must create after meter panel
 220         tool_panel = new CWindowTool(mwindow, this);
 221         tool_panel->Thread::start();
 222
 223         set_operation(mwindow->edl->session->cwindow_operation);
 224         draw_status(0);
 225         unlock_window();
 226 }
 227
 228 int CWindowGUI::translation_event()
 229 {
 230         mwindow->session->cwindow_x = get_x();
 231         mwindow->session->cwindow_y = get_y();
 232         return 0;
 233 }
 234
 235 int CWindowGUI::resize_event(int w, int h)
 236 {
 237         mwindow->session->cwindow_x = get_x();
 238         mwindow->session->cwindow_y = get_y();
 239         mwindow->session->cwindow_w = w;
 240         mwindow->session->cwindow_h = h;
 241
 242         mwindow->theme->get_cwindow_sizes(this, mwindow->session->cwindow_controls);
 243         mwindow->theme->draw_cwindow_bg(this);
 244         flash(0);
 245
 246         composite_panel->reposition_buttons(mwindow->theme->ccomposite_x,
 247                 mwindow->theme->ccomposite_y, mwindow->theme->ccomposite_h);
 248
 249         canvas->reposition_window(mwindow->edl,
 250                 mwindow->theme->ccanvas_x,
 251                 mwindow->theme->ccanvas_y,
 252                 mwindow->theme->ccanvas_w,
 253                 mwindow->theme->ccanvas_h);
 254
 255         timebar->resize_event();
 256
 257 #ifdef USE_SLIDER
 258         slider->reposition_window(mwindow->theme->cslider_x,
 259                 mwindow->theme->cslider_y,
 260                 mwindow->theme->cslider_w);
 261 // Recalibrate pointer motion range
 262         slider->set_position();
 263 #endif
 264
 265         transport->reposition_buttons(mwindow->theme->ctransport_x,
 266                 mwindow->theme->ctransport_y);
 267
 268         edit_panel->reposition_buttons(mwindow->theme->cedit_x,
 269                 mwindow->theme->cedit_y);
 270
 271 //      clock->reposition_window(mwindow->theme->ctime_x,
 272 //              mwindow->theme->ctime_y);
 273
 274         zoom_panel->reposition_window(mwindow->theme->czoom_x,
 275                 mwindow->theme->czoom_y);
 276
 277 //      destination->reposition_window(mwindow->theme->cdest_x,
 278 //              mwindow->theme->cdest_y);
 279
 280         meters->reposition_window(mwindow->theme->cmeter_x,
 281                 mwindow->theme->cmeter_y,
 282                 -1,
 283                 mwindow->theme->cmeter_h);
 284
 285         draw_status(0);
 286
 287         BC_WindowBase::resize_event(w, h);
 288         return 1;
 289 }
 290
 291 int CWindowGUI::button_press_event()
 292 {
 293         if( current_operation == CWINDOW_NONE &&
 294             mwindow->edl != 0 && canvas->get_canvas() &&
 295             mwindow->edl->session->cwindow_click2play &&
 296             canvas->get_canvas()->get_cursor_over_window() ) {
 297                 switch( get_buttonpress() ) {
 298                 case LEFT_BUTTON:
 299                         if( !cwindow->playback_engine->is_playing_back ) {
 300                                 double length = mwindow->edl->tracks->total_playable_length();
 301                                 double position = cwindow->playback_engine->get_tracking_position();
 302                                 if( position >= length ) transport->goto_start();
 303                         }
 304                         return transport->forward_play->handle_event();
 305                 case MIDDLE_BUTTON:
 306                         if( !cwindow->playback_engine->is_playing_back ) {
 307                                 double position = cwindow->playback_engine->get_tracking_position();
 308                                 if( position <= 0 ) transport->goto_end();
 309                         }
 310                         return transport->reverse_play->handle_event();
 311                 case RIGHT_BUTTON:  // activates popup
 312                         break;
 313                 case WHEEL_UP:
 314                         return transport->frame_forward_play->handle_event();
 315                 case WHEEL_DOWN:
 316                         return transport->frame_reverse_play->handle_event();
 317                 }
 318         }
 319         if(canvas->get_canvas())
 320                 return canvas->button_press_event_base(canvas->get_canvas());
 321         return 0;
 322 }
 323
 324 int CWindowGUI::cursor_leave_event()
 325 {
 326         if(canvas->get_canvas())
 327                 return canvas->cursor_leave_event_base(canvas->get_canvas());
 328         return 0;
 329 }
 330
 331 int CWindowGUI::cursor_enter_event()
 332 {
 333         if(canvas->get_canvas())
 334                 return canvas->cursor_enter_event_base(canvas->get_canvas());
 335         return 0;
 336 }
 337
 338 int CWindowGUI::button_release_event()
 339 {
 340         if(canvas->get_canvas())
 341                 return canvas->button_release_event();
 342         return 0;
 343 }
 344
 345 int CWindowGUI::cursor_motion_event()
 346 {
 347         if(canvas->get_canvas())
 348         {
 349                 canvas->get_canvas()->unhide_cursor();
 350                 return canvas->cursor_motion_event();
 351         }
 352         return 0;
 353 }
 354
 355
 356
 357
 358
 359
 360
 361 void CWindowGUI::draw_status(int flush)
 362 {
 363         if( (canvas->get_canvas() && canvas->get_canvas()->get_video_on()) ||
 364                 canvas->is_processing )
 365         {
 366                 draw_pixmap(active,
 367                         mwindow->theme->cstatus_x,
 368                         mwindow->theme->cstatus_y);
 369         }
 370         else
 371         {
 372                 draw_pixmap(inactive,
 373                         mwindow->theme->cstatus_x,
 374                         mwindow->theme->cstatus_y);
 375         }
 376
 377
 378 // printf("CWindowGUI::draw_status %d %d %d\n", __LINE__, mwindow->theme->cstatus_x,
 379 //              mwindow->theme->cstatus_y);
 380         flash(mwindow->theme->cstatus_x,
 381                 mwindow->theme->cstatus_y,
 382                 active->get_w(),
 383                 active->get_h(),
 384                 flush);
 385 }
 386
 387 float CWindowGUI::get_auto_zoom()
 388 {
 389         float conformed_w, conformed_h;
 390         mwindow->edl->calculate_conformed_dimensions(0, conformed_w, conformed_h);
 391         float zoom_x = canvas->w / conformed_w;
 392         float zoom_y = canvas->h / conformed_h;
 393         return zoom_x < zoom_y ? zoom_x : zoom_y;
 394 }
 395
 396 void CWindowGUI::zoom_canvas(double value, int update_menu)
 397 {
 398         float x = 0, y = 0;
 399         float zoom = !value ? get_auto_zoom() : value;
 400         EDL *edl = mwindow->edl;
 401         edl->session->cwindow_scrollbars = !value ? 0 : 1;
 402         if( value ) {
 403                 float cx = 0.5f * canvas->w;  x = cx;
 404                 float cy = 0.5f * canvas->h;  y = cy;
 405                 canvas->canvas_to_output(edl, 0, x, y);
 406                 canvas->update_zoom(0, 0, zoom);
 407                 float zoom_x, zoom_y, conformed_w, conformed_h;
 408                 canvas->get_zooms(edl, 0, zoom_x, zoom_y, conformed_w, conformed_h);
 409                 x -= cx / zoom_x;
 410                 y -= cy / zoom_y;
 411
 412         }
 413         canvas->update_zoom((int)(x+0.5), (int)(y+0.5), zoom);
 414
 415         if( update_menu )
 416                 zoom_panel->update(value);
 417         if( mwindow->edl->session->cwindow_operation == CWINDOW_ZOOM )
 418                 composite_panel->cpanel_zoom->update(zoom);
 419
 420         canvas->reposition_window(mwindow->edl,
 421                 mwindow->theme->ccanvas_x, mwindow->theme->ccanvas_y,
 422                 mwindow->theme->ccanvas_w, mwindow->theme->ccanvas_h);
 423         canvas->refresh(0);
 424 }
 425
 426 void CWindowGUI::set_operation(int value)
 427 {
 428         switch( value ) {
 429         case CWINDOW_TOOL_WINDOW:
 430                 mwindow->edl->session->tool_window = !mwindow->edl->session->tool_window;
 431                 composite_panel->operation[CWINDOW_TOOL_WINDOW]->update(mwindow->edl->session->tool_window);
 432                 tool_panel->update_show_window();
 433                 return;
 434         case CWINDOW_TITLESAFE:
 435                 mwindow->edl->session->safe_regions = !mwindow->edl->session->safe_regions;
 436                 composite_panel->operation[CWINDOW_TITLESAFE]->update(mwindow->edl->session->safe_regions);
 437                 value = mwindow->edl->session->cwindow_operation;
 438                 break;
 439         default:
 440                 mwindow->edl->session->cwindow_operation = value;
 441                 composite_panel->set_operation(value);
 442                 break;
 443         }
 444
 445         edit_panel->update();
 446         tool_panel->start_tool(value);
 447         canvas->refresh(0);
 448 }
 449
 450 void CWindowGUI::update_tool()
 451 {
 452         tool_panel->update_values();
 453 }
 454
 455 int CWindowGUI::close_event()
 456 {
 457         cwindow->hide_window();
 458         return 1;
 459 }
 460
 461
 462 int CWindowGUI::keypress_event()
 463 {
 464         int result = 0;
 465         int cwindow_operation = CWINDOW_NONE;
 466
 467         switch( get_keypress() ) {
 468         case 'w':
 469         case 'W':
 470                 close_event();
 471                 result = 1;
 472                 break;
 473         case '+':
 474         case '=':
 475                 keyboard_zoomin();
 476                 result = 1;
 477                 break;
 478         case '-':
 479                 keyboard_zoomout();
 480                 result = 1;
 481                 break;
 482         case 'f':
 483                 unlock_window();
 484                 if( canvas->get_fullscreen() )
 485                         canvas->stop_fullscreen();
 486                 else
 487                         canvas->start_fullscreen();
 488                 lock_window("CWindowGUI::keypress_event 1");
 489                 result = 1;
 490                 break;
 491         case 'x':
 492                 if( ctrl_down() || shift_down() || alt_down() ) break;
 493                 unlock_window();
 494                 mwindow->gui->lock_window("CWindowGUI::keypress_event 2");
 495                 mwindow->cut();
 496                 mwindow->gui->unlock_window();
 497                 lock_window("CWindowGUI::keypress_event 2");
 498                 result = 1;
 499                 break;
 500         case DELETE:
 501                 unlock_window();
 502                 mwindow->gui->lock_window("CWindowGUI::keypress_event 2");
 503                 mwindow->clear_entry();
 504                 mwindow->gui->unlock_window();
 505                 lock_window("CWindowGUI::keypress_event 3");
 506                 result = 1;
 507                 break;
 508         case ESC:
 509                 unlock_window();
 510                 if( canvas->get_fullscreen() )
 511                         canvas->stop_fullscreen();
 512                 lock_window("CWindowGUI::keypress_event 4");
 513                 result = 1;
 514                 break;
 515         case LEFT:
 516                 if( !ctrl_down() ) {
 517                         int alt_down = this->alt_down();
 518                         int shift_down = this->shift_down();
 519                         unlock_window();
 520                         stop_transport(0);
 521                         mwindow->gui->lock_window("CWindowGUI::keypress_event 5");
 522                         if( alt_down )
 523                                 mwindow->prev_edit_handle(shift_down);
 524                         else
 525                                 mwindow->move_left();
 526                         mwindow->gui->unlock_window();
 527                         lock_window("CWindowGUI::keypress_event 6");
 528                         result = 1;
 529                 }
 530                 break;
 531
 532         case ',':
 533                 if( !ctrl_down() && !alt_down() ) {
 534                         unlock_window();
 535                         stop_transport(0);
 536                         mwindow->gui->lock_window("CWindowGUI::keypress_event 7");
 537                         mwindow->move_left();
 538                         mwindow->gui->unlock_window();
 539                         lock_window("CWindowGUI::keypress_event 8");
 540                         result = 1;
 541                 }
 542                 break;
 543
 544         case RIGHT:
 545                 if( !ctrl_down() ) {
 546                         int alt_down = this->alt_down();
 547                         int shift_down = this->shift_down();
 548                         unlock_window();
 549                         stop_transport(0);
 550                         mwindow->gui->lock_window("CWindowGUI::keypress_event 8");
 551                         if( alt_down )
 552                                 mwindow->next_edit_handle(shift_down);
 553                         else
 554                                 mwindow->move_right();
 555                         mwindow->gui->unlock_window();
 556                         lock_window("CWindowGUI::keypress_event 9");
 557                         result = 1;
 558                 }
 559                 break;
 560
 561         case '.':
 562                 if( !ctrl_down() && !alt_down() ) {
 563                         unlock_window();
 564                         stop_transport(0);
 565                         mwindow->gui->lock_window("CWindowGUI::keypress_event 10");
 566                         mwindow->move_right();
 567                         mwindow->gui->unlock_window();
 568                         lock_window("CWindowGUI::keypress_event 11");
 569                         result = 1;
 570                 }
 571                 break;
 572         }
 573
 574         if( !result && cwindow_operation < 0 && ctrl_down() && shift_down() ) {
 575                 switch( get_keypress() ) {
 576                 case KEY_F1 ... KEY_F4: // mainmenu, load layout
 577                         resend_event(mwindow->gui);
 578                         result = 1;
 579                         break;
 580                 }
 581         }
 582         if( !result && !ctrl_down() ) {
 583                 switch( get_keypress() ) {
 584                 case KEY_F1:
 585                         if( shift_down() ) {
 586                                 mwindow->toggle_camera_xyz();  result = 1;
 587                         }
 588                         else
 589                                 cwindow_operation = CWINDOW_PROTECT;
 590                         break;
 591                 case KEY_F2:
 592                         if( shift_down() ) {
 593                                 mwindow->toggle_projector_xyz();  result = 1;
 594                         }
 595                         else
 596                                 cwindow_operation = CWINDOW_ZOOM;
 597                         break;
 598                 }
 599         }
 600         if( !result && cwindow_operation < 0 && !ctrl_down() && !shift_down() ) {
 601                 switch( get_keypress() ) {
 602                 case KEY_F3:    cwindow_operation = CWINDOW_MASK;       break;
 603                 case KEY_F4:    cwindow_operation = CWINDOW_RULER;      break;
 604                 case KEY_F5:    cwindow_operation = CWINDOW_CAMERA;     break;
 605                 case KEY_F6:    cwindow_operation = CWINDOW_PROJECTOR;  break;
 606                 case KEY_F7:    cwindow_operation = CWINDOW_CROP;       break;
 607                 case KEY_F8:    cwindow_operation = CWINDOW_EYEDROP;    break;
 608                 case KEY_F9:    cwindow_operation = CWINDOW_TOOL_WINDOW; break;
 609                 case KEY_F10:   cwindow_operation = CWINDOW_TITLESAFE;  break;
 610                 }
 611         }
 612         if( !result && cwindow_operation < 0 && !ctrl_down() ) {
 613                 switch( get_keypress() ) {
 614                 case KEY_F11:
 615                         if( !shift_down() )
 616                                 canvas->reset_camera();
 617                         else
 618                                 canvas->camera_keyframe();
 619                         result = 1;
 620                         break;
 621                 case KEY_F12:
 622                         if( !shift_down() )
 623                                 canvas->reset_projector();
 624                         else
 625                                 canvas->projector_keyframe();
 626                         result = 1;
 627                         break;
 628                 }
 629         }
 630
 631         if( cwindow_operation >= 0 ) {
 632                 set_operation(cwindow_operation);
 633                 result = 1;
 634         }
 635
 636         if( !result )
 637                 result = transport->keypress_event();
 638
 639         return result;
 640 }
 641
 642
 643 void CWindowGUI::reset_affected()
 644 {
 645         affected_x = 0;
 646         affected_y = 0;
 647         affected_z = 0;
 648 }
 649
 650 void CWindowGUI::keyboard_zoomin()
 651 {
 652 //      if(mwindow->edl->session->cwindow_scrollbars)
 653 //      {
 654                 zoom_panel->zoom_tumbler->handle_up_event();
 655 //      }
 656 //      else
 657 //      {
 658 //      }
 659 }
 660
 661 void CWindowGUI::keyboard_zoomout()
 662 {
 663 //      if(mwindow->edl->session->cwindow_scrollbars)
 664 //      {
 665                 zoom_panel->zoom_tumbler->handle_down_event();
 666 //      }
 667 //      else
 668 //      {
 669 //      }
 670 }
 671
 672 void CWindowGUI::sync_parameters(int change_type, int redraw, int overlay)
 673 {
 674         if( redraw ) {
 675                 update_tool();
 676                 canvas->refresh(1);
 677         }
 678         if( change_type < 0 && !overlay ) return;
 679         unlock_window();
 680         if( change_type >= 0 ) {
 681                 mwindow->restart_brender();
 682                 mwindow->sync_parameters(change_type);
 683         }
 684         if( overlay ) {
 685                 mwindow->gui->lock_window("CWindowGUI::sync_parameters");
 686                 mwindow->gui->draw_overlays(1);
 687                 mwindow->gui->unlock_window();
 688         }
 689         lock_window("CWindowGUI::sync_parameters");
 690 }
 691
 692 void CWindowGUI::drag_motion()
 693 {
 694         if(get_hidden()) return;
 695
 696         if(mwindow->session->current_operation != DRAG_ASSET &&
 697                 mwindow->session->current_operation != DRAG_VTRANSITION &&
 698                 mwindow->session->current_operation != DRAG_VEFFECT) return;
 699         int need_highlight = cursor_above() && get_cursor_over_window();
 700         if( highlighted == need_highlight ) return;
 701         highlighted = need_highlight;
 702         canvas->refresh(1);
 703 }
 704
 705 int CWindowGUI::drag_stop()
 706 {
 707         int result = 0;
 708         if(get_hidden()) return 0;
 709         if( !highlighted ) return 0;
 710         if( mwindow->session->current_operation != DRAG_ASSET &&
 711             mwindow->session->current_operation != DRAG_VTRANSITION &&
 712             mwindow->session->current_operation != DRAG_VEFFECT) return 0;
 713         highlighted = 0;
 714         canvas->refresh(1);
 715         result = 1;
 716
 717         if(mwindow->session->current_operation == DRAG_ASSET)
 718         {
 719                 if(mwindow->session->drag_assets->total ||
 720                         mwindow->session->drag_clips->total)
 721                 {
 722                         mwindow->gui->lock_window("CWindowGUI::drag_stop 1");
 723                         mwindow->undo->update_undo_before(_("insert assets"), 0);
 724                 }
 725
 726                 if(mwindow->session->drag_assets->total)
 727                 {
 728                         mwindow->clear(0);
 729                         mwindow->load_assets(mwindow->session->drag_assets,
 730                                 mwindow->edl->local_session->get_selectionstart(),
 731                                 LOADMODE_PASTE,
 732                                 mwindow->session->track_highlighted,
 733                                 0,
 734                                 mwindow->edl->session->labels_follow_edits,
 735                                 mwindow->edl->session->plugins_follow_edits,
 736                                 mwindow->edl->session->autos_follow_edits,
 737                                 0); // overwrite
 738                 }
 739
 740                 if(mwindow->session->drag_clips->total)
 741                 {
 742                         mwindow->clear(0);
 743                         mwindow->paste_edls(mwindow->session->drag_clips,
 744                                 LOADMODE_PASTE,
 745                                 mwindow->session->track_highlighted,
 746                                 mwindow->edl->local_session->get_selectionstart(),
 747                                 mwindow->edl->session->labels_follow_edits,
 748                                 mwindow->edl->session->plugins_follow_edits,
 749                                 mwindow->edl->session->autos_follow_edits,
 750                                 0); // overwrite
 751                 }
 752
 753                 if(mwindow->session->drag_assets->total ||
 754                         mwindow->session->drag_clips->total)
 755                 {
 756                         mwindow->save_backup();
 757                         mwindow->restart_brender();
 758                         mwindow->gui->update(1, NORMAL_DRAW, 1, 1, 0, 1, 0);
 759                         mwindow->undo->update_undo_after(_("insert assets"), LOAD_ALL);
 760                         mwindow->gui->unlock_window();
 761                         sync_parameters(CHANGE_ALL);
 762                 }
 763         }
 764
 765         if(mwindow->session->current_operation == DRAG_VEFFECT)
 766         {
 767 //printf("CWindowGUI::drag_stop 1\n");
 768                 Track *affected_track = cwindow->calculate_affected_track();
 769 //printf("CWindowGUI::drag_stop 2\n");
 770
 771                 mwindow->gui->lock_window("CWindowGUI::drag_stop 3");
 772                 mwindow->insert_effects_cwindow(affected_track);
 773                 mwindow->session->current_operation = NO_OPERATION;
 774                 mwindow->gui->unlock_window();
 775         }
 776
 777         if(mwindow->session->current_operation == DRAG_VTRANSITION)
 778         {
 779                 Track *affected_track = cwindow->calculate_affected_track();
 780                 mwindow->gui->lock_window("CWindowGUI::drag_stop 4");
 781                 mwindow->paste_transition_cwindow(affected_track);
 782                 mwindow->session->current_operation = NO_OPERATION;
 783                 mwindow->gui->unlock_window();
 784         }
 785
 786         return result;
 787 }
 788
 789 void CWindowGUI::update_meters()
 790 {
 791         if(mwindow->edl->session->cwindow_meter != meters->visible)
 792         {
 793                 meters->set_meters(meters->meter_count, mwindow->edl->session->cwindow_meter);
 794                 mwindow->theme->get_cwindow_sizes(this, mwindow->session->cwindow_controls);
 795                 resize_event(get_w(), get_h());
 796         }
 797 }
 798
 799 void CWindowGUI::stop_transport(const char *lock_msg)
 800 {
 801         if( lock_msg ) unlock_window();
 802         mwindow->stop_transport();
 803         if( lock_msg ) lock_window(lock_msg);
 804 }
 805
 806
 807 CWindowEditing::CWindowEditing(MWindow *mwindow, CWindow *cwindow)
 808  : EditPanel(mwindow, cwindow->gui, CWINDOW_ID,
 809                 mwindow->theme->cedit_x, mwindow->theme->cedit_y,
 810                 mwindow->edl->session->editing_mode,
 811                 0, // use_editing_mode
 812                 1, // use_keyframe
 813                 0, // use_splice
 814                 0, // use_overwrite
 815                 1, // use_copy
 816                 1, // use_paste
 817                 1, // use_undo
 818                 0, // use_fit
 819                 0, // locklabels
 820                 1, // use_labels
 821                 1, // use_toclip
 822                 1, // use_meters
 823                 1, // use_cut
 824                 0, // use_commerical
 825                 0, // use_goto
 826                 1) // use_clk2play
 827 {
 828         this->mwindow = mwindow;
 829         this->cwindow = cwindow;
 830 }
 831
 832 #define relock_cm(s) \
 833  cwindow->gui->unlock_window(); \
 834  mwindow->gui->lock_window("CWindowEditing::" s)
 835 #define relock_mc(s) \
 836  mwindow->gui->unlock_window(); \
 837  cwindow->gui->lock_window("CWindowEditing::" s)
 838 #define panel_fn(fn, args, s) \
 839  CWindowEditing::fn args { relock_cm(#fn); s; relock_mc(#fn); }
 840
 841 // transmit lock to mwindow, and run mbutton->edit_panel->s
 842 #define panel_btn(fn, args, s) \
 843  panel_fn(panel_##fn, args, mwindow->gui->mbuttons->edit_panel->panel_##s)
 844
 845
 846 double CWindowEditing::get_position()
 847 {
 848         relock_cm("get_position");
 849         double ret = mwindow->edl->local_session->get_selectionstart(1);
 850         relock_mc("get_position");
 851         return ret;
 852 }
 853
 854 void CWindowEditing::set_position(double position)
 855 {
 856         relock_cm("set_position");
 857         mwindow->gui->mbuttons->edit_panel->set_position(position);
 858         relock_mc("set_position");
 859 }
 860
 861 void CWindowEditing::set_click_to_play(int v)
 862 {
 863         relock_cm("set_position");
 864         mwindow->edl->session->cwindow_click2play = v;
 865         relock_mc("set_position");
 866         click2play->update(v);
 867 }
 868
 869
 870 void panel_btn(stop_transport,(), stop_transport())
 871 void panel_btn(toggle_label,(), toggle_label())
 872 void panel_btn(next_label,(int cut), next_label(cut))
 873 void panel_btn(prev_label,(int cut), prev_label(cut))
 874 void panel_btn(next_edit,(int cut), next_edit(cut))
 875 void panel_btn(prev_edit,(int cut), prev_edit(cut))
 876 void panel_fn(panel_copy_selection,(), mwindow->copy())
 877 void CWindowEditing::panel_overwrite_selection() {} // not used
 878 void CWindowEditing::panel_splice_selection() {} // not used
 879 void panel_btn(set_inpoint,(), set_inpoint())
 880 void panel_btn(set_outpoint,(), set_outpoint())
 881 void panel_btn(unset_inoutpoint,(), unset_inoutpoint())
 882 void panel_fn(panel_to_clip,(), mwindow->to_clip(mwindow->edl, _("main window: "), 0))
 883 void panel_btn(cut,(), cut())
 884 void panel_btn(paste,(), paste())
 885 void panel_btn(fit_selection,(), fit_selection())
 886 void panel_btn(fit_autos,(int all), fit_autos(all))
 887 void panel_btn(set_editing_mode,(int mode), set_editing_mode(mode))
 888 void panel_btn(set_auto_keyframes,(int v), set_auto_keyframes(v))
 889 void panel_btn(set_labels_follow_edits,(int v), set_labels_follow_edits(v))
 890
 891
 892 CWindowMeters::CWindowMeters(MWindow *mwindow,
 893         CWindowGUI *gui, int x, int y, int h)
 894  : MeterPanel(mwindow, gui, x, y, -1, h,
 895                 mwindow->edl->session->audio_channels,
 896                 mwindow->edl->session->cwindow_meter,
 897                 0, 0)
 898 {
 899         this->mwindow = mwindow;
 900         this->gui = gui;
 901 }
 902
 903 CWindowMeters::~CWindowMeters()
 904 {
 905 }
 906
 907 int CWindowMeters::change_status_event(int new_status)
 908 {
 909         mwindow->edl->session->cwindow_meter = new_status;
 910         gui->update_meters();
 911         return 1;
 912 }
 913
 914
 915
 916
 917 CWindowZoom::CWindowZoom(MWindow *mwindow, CWindowGUI *gui, int x, int y, int w)
 918  : ZoomPanel(mwindow, gui, (double)mwindow->edl->session->cwindow_zoom,
 919         x, y, w, my_zoom_table, total_zooms, ZOOM_PERCENTAGE)
 920 {
 921         this->mwindow = mwindow;
 922         this->gui = gui;
 923 }
 924
 925 CWindowZoom::~CWindowZoom()
 926 {
 927 }
 928
 929 void CWindowZoom::update(double value)
 930 {
 931         char string[BCSTRLEN];
 932         const char *cp = string;
 933         if( value ) {
 934                 this->value = value;
 935                 int frac = value >= 1.0f ? 1 :
 936                            value >= 0.1f ? 2 :
 937                            value >= .01f ? 3 : 4;
 938                 sprintf(string, "x %.*f", frac, value);
 939         }
 940         else
 941                 cp = gui->auto_zoom;
 942         ZoomPanel::update(cp);
 943 }
 944
 945 int CWindowZoom::handle_event()
 946 {
 947         double value = !strcasecmp(gui->auto_zoom, get_text()) ? 0 : get_value();
 948         gui->zoom_canvas(value, 0);
 949         return 1;
 950 }
 951
 952
 953
 954 #ifdef USE_SLIDER
 955 CWindowSlider::CWindowSlider(MWindow *mwindow, CWindow *cwindow, int x, int y, int pixels)
 956  : BC_PercentageSlider(x,
 957                         y,
 958                         0,
 959                         pixels,
 960                         pixels,
 961                         0,
 962                         1,
 963                         0)
 964 {
 965         this->mwindow = mwindow;
 966         this->cwindow = cwindow;
 967         set_precision(0.00001);
 968 }
 969
 970 CWindowSlider::~CWindowSlider()
 971 {
 972 }
 973
 974 int CWindowSlider::handle_event()
 975 {
 976         cwindow->update_position((double)get_value());
 977         return 1;
 978 }
 979
 980 void CWindowSlider::set_position()
 981 {
 982         double new_length = mwindow->edl->tracks->total_length();
 983         update(mwindow->theme->cslider_w,
 984                 mwindow->edl->local_session->get_selectionstart(1),
 985                 0, new_length);
 986 }
 987
 988
 989 int CWindowSlider::increase_value()
 990 {
 991         unlock_window();
 992         cwindow->gui->transport->handle_transport(SINGLE_FRAME_FWD);
 993         lock_window("CWindowSlider::increase_value");
 994         return 1;
 995 }
 996
 997 int CWindowSlider::decrease_value()
 998 {
 999         unlock_window();
1000         cwindow->gui->transport->handle_transport(SINGLE_FRAME_REWIND);
1001         lock_window("CWindowSlider::decrease_value");
1002         return 1;
1003 }
1004
1005
1006 // CWindowDestination::CWindowDestination(MWindow *mwindow, CWindowGUI *cwindow, int x, int y)
1007 //  : BC_PopupTextBox(cwindow,
1008 //      &cwindow->destinations,
1009 //      cwindow->destinations.values[cwindow->cwindow->destination]->get_text(),
1010 //      x,
1011 //      y,
1012 //      70,
1013 //      200)
1014 // {
1015 //      this->mwindow = mwindow;
1016 //      this->cwindow = cwindow;
1017 // }
1018 //
1019 // CWindowDestination::~CWindowDestination()
1020 // {
1021 // }
1022 //
1023 // int CWindowDestination::handle_event()
1024 // {
1025 //      return 1;
1026 // }
1027 #endif // USE_SLIDER
1028
1029
1030
1031
1032
1033
1034 CWindowTransport::CWindowTransport(MWindow *mwindow,
1035         CWindowGUI *gui,
1036         int x,
1037         int y)
1038  : PlayTransport(mwindow,
1039         gui,
1040         x,
1041         y)
1042 {
1043         this->gui = gui;
1044 }
1045
1046 EDL* CWindowTransport::get_edl()
1047 {
1048         return mwindow->edl;
1049 }
1050
1051 void CWindowTransport::goto_start()
1052 {
1053         gui->unlock_window();
1054         handle_transport(REWIND, 1);
1055
1056         mwindow->gui->lock_window("CWindowTransport::goto_start 1");
1057         mwindow->goto_start();
1058         mwindow->gui->unlock_window();
1059
1060         gui->lock_window("CWindowTransport::goto_start 2");
1061 }
1062
1063 void CWindowTransport::goto_end()
1064 {
1065         gui->unlock_window();
1066         handle_transport(GOTO_END, 1);
1067
1068         mwindow->gui->lock_window("CWindowTransport::goto_end 1");
1069         mwindow->goto_end();
1070         mwindow->gui->unlock_window();
1071
1072         gui->lock_window("CWindowTransport::goto_end 2");
1073 }
1074
1075
1076
1077 CWindowCanvas::CWindowCanvas(MWindow *mwindow, CWindowGUI *gui)
1078  : Canvas(mwindow,
1079         gui,
1080         mwindow->theme->ccanvas_x,
1081         mwindow->theme->ccanvas_y,
1082         mwindow->theme->ccanvas_w,
1083         mwindow->theme->ccanvas_h,
1084         0,
1085         0,
1086         mwindow->edl->session->cwindow_scrollbars)
1087 {
1088         this->mwindow = mwindow;
1089         this->gui = gui;
1090 }
1091
1092 void CWindowCanvas::status_event()
1093 {
1094         gui->draw_status(1);
1095 }
1096
1097 void CWindowCanvas::update_zoom(int x, int y, float zoom)
1098 {
1099         use_scrollbars = mwindow->edl->session->cwindow_scrollbars;
1100
1101         mwindow->edl->session->cwindow_xscroll = x;
1102         mwindow->edl->session->cwindow_yscroll = y;
1103         mwindow->edl->session->cwindow_zoom = zoom;
1104 }
1105
1106 void CWindowCanvas::zoom_auto()
1107 {
1108         gui->zoom_canvas(0, 1);
1109 }
1110
1111 int CWindowCanvas::get_xscroll()
1112 {
1113         return mwindow->edl->session->cwindow_xscroll;
1114 }
1115
1116 int CWindowCanvas::get_yscroll()
1117 {
1118         return mwindow->edl->session->cwindow_yscroll;
1119 }
1120
1121
1122 float CWindowCanvas::get_zoom()
1123 {
1124         return mwindow->edl->session->cwindow_zoom;
1125 }
1126
1127 void CWindowCanvas::draw_refresh(int flush)
1128 {
1129         BC_WindowBase *window = get_canvas();
1130         if( window && !window->get_video_on() ) {
1131                 clear(0);
1132                 if( mwindow->uses_opengl() ) {
1133 // this code is to idle rendering before drawing overlays on refresh frame
1134 // if this is not done, occationally opengl finishs late, and overwrites
1135 // the x11 refresh frame and the overlay is not visible.  Rarely happens.
1136                         unlock_canvas();
1137                         mwindow->playback_3d->finish_output(this);
1138                         lock_canvas("CWindowCanvas::draw_refresh");
1139                 }
1140                 if( refresh_frame && refresh_frame->get_w()>0 && refresh_frame->get_h()>0 ) {
1141                         float in_x1, in_y1, in_x2, in_y2;
1142                         float out_x1, out_y1, out_x2, out_y2;
1143                         get_transfers(mwindow->edl,
1144                                 in_x1, in_y1, in_x2, in_y2,
1145                                 out_x1, out_y1, out_x2, out_y2);
1146
1147
1148 //printf("CWindowCanvas::draw_refresh %.2f %.2f %.2f %.2f -> %.2f %.2f %.2f %.2f\n",
1149 //in_x1, in_y1, in_x2, in_y2, out_x1, out_y1, out_x2, out_y2);
1150
1151
1152                         if( out_x2 > out_x1 && out_y2 > out_y1 &&
1153                             in_x2 > in_x1 && in_y2 > in_y1 ) {
1154 // input scaled from session to refresh frame coordinates
1155                                 int ow = get_output_w(mwindow->edl);
1156                                 int oh = get_output_h(mwindow->edl);
1157                                 int rw = refresh_frame->get_w();
1158                                 int rh = refresh_frame->get_h();
1159                                 float xs = (float)rw / ow;
1160                                 float ys = (float)rh / oh;
1161                                 in_x1 *= xs;  in_x2 *= xs;
1162                                 in_y1 *= ys;  in_y2 *= ys;
1163 // Can't use OpenGL here because it is called asynchronously of the
1164 // playback operation.
1165                                 window->draw_vframe(refresh_frame,
1166                                                 (int)out_x1, (int)out_y1,
1167                                                 (int)(out_x2 - out_x1),
1168                                                 (int)(out_y2 - out_y1),
1169                                                 (int)in_x1, (int)in_y1,
1170                                                 (int)(in_x2 - in_x1),
1171                                                 (int)(in_y2 - in_y1),
1172                                                 0);
1173                         }
1174                 }
1175 //usleep(10000);
1176                 draw_overlays();
1177                 window->flash(flush);
1178         }
1179 //printf("CWindowCanvas::draw_refresh 10\n");
1180 }
1181
1182 #define CROPHANDLE_W 10
1183 #define CROPHANDLE_H 10
1184
1185 void CWindowCanvas::draw_crophandle(int x, int y)
1186 {
1187         get_canvas()->draw_box(x, y, CROPHANDLE_W, CROPHANDLE_H);
1188 }
1189
1190
1191 #define CONTROL_W 10
1192 #define CONTROL_H 10
1193 #define FIRST_CONTROL_W 20
1194 #define FIRST_CONTROL_H 20
1195 #undef BC_INFINITY
1196 #define BC_INFINITY 65536
1197
1198 #define RULERHANDLE_W 16
1199 #define RULERHANDLE_H 16
1200
1201 int CWindowCanvas::do_ruler(int draw,
1202         int motion,
1203         int button_press,
1204         int button_release)
1205 {
1206         int result = 0;
1207         float x1 = mwindow->edl->session->ruler_x1;
1208         float y1 = mwindow->edl->session->ruler_y1;
1209         float x2 = mwindow->edl->session->ruler_x2;
1210         float y2 = mwindow->edl->session->ruler_y2;
1211         float canvas_x1 = x1;
1212         float canvas_y1 = y1;
1213         float canvas_x2 = x2;
1214         float canvas_y2 = y2;
1215         float output_x = get_cursor_x();
1216         float output_y = get_cursor_y();
1217         float canvas_cursor_x = output_x;
1218         float canvas_cursor_y = output_y;
1219
1220         canvas_to_output(mwindow->edl, 0, output_x, output_y);
1221         output_to_canvas(mwindow->edl, 0, canvas_x1, canvas_y1);
1222         output_to_canvas(mwindow->edl, 0, canvas_x2, canvas_y2);
1223         mwindow->session->cwindow_output_x = roundf(output_x);
1224         mwindow->session->cwindow_output_y = roundf(output_y);
1225
1226         if(button_press && get_buttonpress() == 1)
1227         {
1228                 gui->ruler_handle = -1;
1229                 gui->ruler_translate = 0;
1230                 if(gui->alt_down())
1231                 {
1232                         gui->ruler_translate = 1;
1233                         gui->ruler_origin_x = x1;
1234                         gui->ruler_origin_y = y1;
1235                 }
1236                 else
1237                 if(canvas_cursor_x >= canvas_x1 - RULERHANDLE_W / 2 &&
1238                         canvas_cursor_x < canvas_x1 + RULERHANDLE_W / 2 &&
1239                         canvas_cursor_y >= canvas_y1 - RULERHANDLE_W &&
1240                         canvas_cursor_y < canvas_y1 + RULERHANDLE_H / 2)
1241                 {
1242                         gui->ruler_handle = 0;
1243                         gui->ruler_origin_x = x1;
1244                         gui->ruler_origin_y = y1;
1245                 }
1246                 else
1247                 if(canvas_cursor_x >= canvas_x2 - RULERHANDLE_W / 2 &&
1248                         canvas_cursor_x < canvas_x2 + RULERHANDLE_W / 2 &&
1249                         canvas_cursor_y >= canvas_y2 - RULERHANDLE_W &&
1250                         canvas_cursor_y < canvas_y2 + RULERHANDLE_H / 2)
1251                 {
1252                         gui->ruler_handle = 1;
1253                         gui->ruler_origin_x = x2;
1254                         gui->ruler_origin_y = y2;
1255                 }
1256
1257
1258 // Start new selection
1259                 if(!gui->ruler_translate &&
1260                         (gui->ruler_handle < 0 ||
1261                         (EQUIV(x2, x1) &&
1262                         EQUIV(y2, y1))))
1263                 {
1264 // Hide previous
1265                         do_ruler(1, 0, 0, 0);
1266                         get_canvas()->flash();
1267                         gui->ruler_handle = 1;
1268                         mwindow->edl->session->ruler_x1 = output_x;
1269                         mwindow->edl->session->ruler_y1 = output_y;
1270                         mwindow->edl->session->ruler_x2 = output_x;
1271                         mwindow->edl->session->ruler_y2 = output_y;
1272                         gui->ruler_origin_x = mwindow->edl->session->ruler_x2;
1273                         gui->ruler_origin_y = mwindow->edl->session->ruler_y2;
1274                 }
1275
1276                 gui->x_origin = output_x;
1277                 gui->y_origin = output_y;
1278                 gui->current_operation = CWINDOW_RULER;
1279                 gui->tool_panel->raise_window();
1280                 result = 1;
1281         }
1282
1283         if(motion)
1284         {
1285                 if(gui->current_operation == CWINDOW_RULER)
1286                 {
1287                         if(gui->ruler_translate)
1288                         {
1289 // Hide ruler
1290                                 do_ruler(1, 0, 0, 0);
1291                                 float x_difference = mwindow->edl->session->ruler_x1;
1292                                 float y_difference = mwindow->edl->session->ruler_y1;
1293                                 mwindow->edl->session->ruler_x1 = output_x - gui->x_origin + gui->ruler_origin_x;
1294                                 mwindow->edl->session->ruler_y1 = output_y - gui->y_origin + gui->ruler_origin_y;
1295                                 x_difference -= mwindow->edl->session->ruler_x1;
1296                                 y_difference -= mwindow->edl->session->ruler_y1;
1297                                 mwindow->edl->session->ruler_x2 -= x_difference;
1298                                 mwindow->edl->session->ruler_y2 -= y_difference;
1299 // Show ruler
1300                                 do_ruler(1, 0, 0, 0);
1301                                 get_canvas()->flash();
1302                                 gui->update_tool();
1303                         }
1304                         else
1305                         switch(gui->ruler_handle)
1306                         {
1307                                 case 0:
1308                                         do_ruler(1, 0, 0, 0);
1309                                         mwindow->edl->session->ruler_x1 = output_x - gui->x_origin + gui->ruler_origin_x;
1310                                         mwindow->edl->session->ruler_y1 = output_y - gui->y_origin + gui->ruler_origin_y;
1311                                         if(gui->alt_down() || gui->ctrl_down())
1312                                         {
1313                                                 double angle_value = fabs(atan((mwindow->edl->session->ruler_y2 - mwindow->edl->session->ruler_y1) /
1314                                                         (mwindow->edl->session->ruler_x2 - mwindow->edl->session->ruler_x1)) *
1315                                                         360 /
1316                                                         2 /
1317                                                         M_PI);
1318                                                 double distance_value =
1319                                                         sqrt(SQR(mwindow->edl->session->ruler_x2 - mwindow->edl->session->ruler_x1) +
1320                                                         SQR(mwindow->edl->session->ruler_y2 - mwindow->edl->session->ruler_y1));
1321                                                 if(angle_value < 22)
1322                                                         mwindow->edl->session->ruler_y1 = mwindow->edl->session->ruler_y2;
1323                                                 else
1324                                                 if(angle_value > 67)
1325                                                         mwindow->edl->session->ruler_x1 = mwindow->edl->session->ruler_x2;
1326                                                 else
1327                                                 if(mwindow->edl->session->ruler_x1 < mwindow->edl->session->ruler_x2 &&
1328                                                         mwindow->edl->session->ruler_y1 < mwindow->edl->session->ruler_y2)
1329                                                 {
1330                                                         mwindow->edl->session->ruler_x1 = mwindow->edl->session->ruler_x2 - distance_value / 1.414214;
1331                                                         mwindow->edl->session->ruler_y1 = mwindow->edl->session->ruler_y2 - distance_value / 1.414214;
1332                                                 }
1333                                                 else
1334                                                 if(mwindow->edl->session->ruler_x1 < mwindow->edl->session->ruler_x2 && mwindow->edl->session->ruler_y1 > mwindow->edl->session->ruler_y2)
1335                                                 {
1336                                                         mwindow->edl->session->ruler_x1 = mwindow->edl->session->ruler_x2 - distance_value / 1.414214;
1337                                                         mwindow->edl->session->ruler_y1 = mwindow->edl->session->ruler_y2 + distance_value / 1.414214;
1338                                                 }
1339                                                 else
1340                                                 if(mwindow->edl->session->ruler_x1 > mwindow->edl->session->ruler_x2 &&
1341                                                         mwindow->edl->session->ruler_y1 < mwindow->edl->session->ruler_y2)
1342                                                 {
1343                                                         mwindow->edl->session->ruler_x1 = mwindow->edl->session->ruler_x2 + distance_value / 1.414214;
1344                                                         mwindow->edl->session->ruler_y1 = mwindow->edl->session->ruler_y2 - distance_value / 1.414214;
1345                                                 }
1346                                                 else
1347                                                 {
1348                                                         mwindow->edl->session->ruler_x1 = mwindow->edl->session->ruler_x2 + distance_value / 1.414214;
1349                                                         mwindow->edl->session->ruler_y1 = mwindow->edl->session->ruler_y2 + distance_value / 1.414214;
1350                                                 }
1351                                         }
1352                                         do_ruler(1, 0, 0, 0);
1353                                         get_canvas()->flash();
1354                                         gui->update_tool();
1355                                         break;
1356
1357                                 case 1:
1358                                         do_ruler(1, 0, 0, 0);
1359                                         mwindow->edl->session->ruler_x2 = output_x - gui->x_origin + gui->ruler_origin_x;
1360                                         mwindow->edl->session->ruler_y2 = output_y - gui->y_origin + gui->ruler_origin_y;
1361                                         if(gui->alt_down() || gui->ctrl_down())
1362                                         {
1363                                                 double angle_value = fabs(atan((mwindow->edl->session->ruler_y2 - mwindow->edl->session->ruler_y1) /
1364                                                         (mwindow->edl->session->ruler_x2 - mwindow->edl->session->ruler_x1)) *
1365                                                         360 /
1366                                                         2 /
1367                                                         M_PI);
1368                                                 double distance_value =
1369                                                         sqrt(SQR(mwindow->edl->session->ruler_x2 - mwindow->edl->session->ruler_x1) +
1370                                                         SQR(mwindow->edl->session->ruler_y2 - mwindow->edl->session->ruler_y1));
1371                                                 if(angle_value < 22)
1372                                                         mwindow->edl->session->ruler_y2 = mwindow->edl->session->ruler_y1;
1373                                                 else
1374                                                 if(angle_value > 67)
1375                                                         mwindow->edl->session->ruler_x2 = mwindow->edl->session->ruler_x1;
1376                                                 else
1377                                                 if(mwindow->edl->session->ruler_x2 < mwindow->edl->session->ruler_x1 &&
1378                                                         mwindow->edl->session->ruler_y2 < mwindow->edl->session->ruler_y1)
1379                                                 {
1380                                                         mwindow->edl->session->ruler_x2 = mwindow->edl->session->ruler_x1 - distance_value / 1.414214;
1381                                                         mwindow->edl->session->ruler_y2 = mwindow->edl->session->ruler_y1 - distance_value / 1.414214;
1382                                                 }
1383                                                 else
1384                                                 if(mwindow->edl->session->ruler_x2 < mwindow->edl->session->ruler_x1 &&
1385                                                         mwindow->edl->session->ruler_y2 > mwindow->edl->session->ruler_y1)
1386                                                 {
1387                                                         mwindow->edl->session->ruler_x2 = mwindow->edl->session->ruler_x1 - distance_value / 1.414214;
1388                                                         mwindow->edl->session->ruler_y2 = mwindow->edl->session->ruler_y1 + distance_value / 1.414214;
1389                                                 }
1390                                                 else
1391                                                 if(mwindow->edl->session->ruler_x2 > mwindow->edl->session->ruler_x1 && mwindow->edl->session->ruler_y2 < mwindow->edl->session->ruler_y1)
1392                                                 {
1393                                                         mwindow->edl->session->ruler_x2 = mwindow->edl->session->ruler_x1 + distance_value / 1.414214;
1394                                                         mwindow->edl->session->ruler_y2 = mwindow->edl->session->ruler_y1 - distance_value / 1.414214;
1395                                                 }
1396                                                 else
1397                                                 {
1398                                                         mwindow->edl->session->ruler_x2 = mwindow->edl->session->ruler_x1 + distance_value / 1.414214;
1399                                                         mwindow->edl->session->ruler_y2 = mwindow->edl->session->ruler_y1 + distance_value / 1.414214;
1400                                                 }
1401                                         }
1402                                         do_ruler(1, 0, 0, 0);
1403                                         get_canvas()->flash();
1404                                         gui->update_tool();
1405                                         break;
1406                         }
1407 //printf("CWindowCanvas::do_ruler 2 %f %f %f %f\n", gui->ruler_x1, gui->ruler_y1, gui->ruler_x2, gui->ruler_y2);
1408                 }
1409                 else
1410                 {
1411 // printf("CWindowCanvas::do_ruler 2 %f %f %f %f\n",
1412 // canvas_cursor_x,
1413 // canvas_cursor_y,
1414 // canvas_x1,
1415 // canvas_y1);
1416                         if(canvas_cursor_x >= canvas_x1 - RULERHANDLE_W / 2 &&
1417                                 canvas_cursor_x < canvas_x1 + RULERHANDLE_W / 2 &&
1418                                 canvas_cursor_y >= canvas_y1 - RULERHANDLE_W &&
1419                                 canvas_cursor_y < canvas_y1 + RULERHANDLE_H / 2)
1420                         {
1421                                 set_cursor(UPRIGHT_ARROW_CURSOR);
1422                         }
1423                         else
1424                         if(canvas_cursor_x >= canvas_x2 - RULERHANDLE_W / 2 &&
1425                                 canvas_cursor_x < canvas_x2 + RULERHANDLE_W / 2 &&
1426                                 canvas_cursor_y >= canvas_y2 - RULERHANDLE_W &&
1427                                 canvas_cursor_y < canvas_y2 + RULERHANDLE_H / 2)
1428                         {
1429                                 set_cursor(UPRIGHT_ARROW_CURSOR);
1430                         }
1431                         else
1432                                 set_cursor(CROSS_CURSOR);
1433
1434 // Update current position
1435                         gui->update_tool();
1436                 }
1437         }
1438
1439 // Assume no ruler measurement if 0 length
1440         if(draw && (!EQUIV(x2, x1) || !EQUIV(y2, y1)))
1441         {
1442                 get_canvas()->set_inverse();
1443                 get_canvas()->set_color(WHITE);
1444                 get_canvas()->draw_line((int)canvas_x1,
1445                         (int)canvas_y1,
1446                         (int)canvas_x2,
1447                         (int)canvas_y2);
1448                 get_canvas()->draw_line(roundf(canvas_x1) - RULERHANDLE_W / 2,
1449                         roundf(canvas_y1),
1450                         roundf(canvas_x1) + RULERHANDLE_W / 2,
1451                         roundf(canvas_y1));
1452                 get_canvas()->draw_line(roundf(canvas_x1),
1453                         roundf(canvas_y1) - RULERHANDLE_H / 2,
1454                         roundf(canvas_x1),
1455                         roundf(canvas_y1) + RULERHANDLE_H / 2);
1456                 get_canvas()->draw_line(roundf(canvas_x2) - RULERHANDLE_W / 2,
1457                         roundf(canvas_y2),
1458                         roundf(canvas_x2) + RULERHANDLE_W / 2,
1459                         roundf(canvas_y2));
1460                 get_canvas()->draw_line(roundf(canvas_x2),
1461                         roundf(canvas_y2) - RULERHANDLE_H / 2,
1462                         roundf(canvas_x2),
1463                         roundf(canvas_y2) + RULERHANDLE_H / 2);
1464                 get_canvas()->set_opaque();
1465         }
1466
1467         return result;
1468 }
1469
1470
1471 static inline double line_dist(float cx,float cy, float tx,float ty)
1472 {
1473         double dx = tx-cx, dy = ty-cy;
1474         return sqrt(dx*dx + dy*dy);
1475 }
1476
1477 static inline bool test_bbox(int cx, int cy, int tx, int ty)
1478 {
1479 //      printf("test_bbox %d,%d - %d,%d = %f\n",cx,cy,tx,ty,line_dist(cx,cy,tx,ty));
1480         return (llabs(cx-tx) < CONTROL_W/2 && llabs(cy-ty) < CONTROL_H/2);
1481 }
1482
1483
1484 int CWindowCanvas::do_mask(int &redraw, int &rerender,
1485                 int button_press, int cursor_motion, int draw)
1486 {
1487 // Retrieve points from top recordable track
1488 //printf("CWindowCanvas::do_mask 1\n");
1489         Track *track = gui->cwindow->calculate_affected_track();
1490 //printf("CWindowCanvas::do_mask 2\n");
1491
1492         if(!track) return 0;
1493 //printf("CWindowCanvas::do_mask 3\n");
1494
1495         MaskAutos *mask_autos = (MaskAutos*)track->automation->autos[AUTOMATION_MASK];
1496         int64_t position = track->to_units(
1497                 mwindow->edl->local_session->get_selectionstart(1),
1498                 0);
1499         ArrayList<MaskPoint*> points;
1500
1501 // Determine the points based on whether
1502 // new keyframes will be generated or drawing is performed.
1503 // If keyframe generation occurs, use the interpolated mask.
1504 // If no keyframe generation occurs, use the previous mask.
1505         int use_interpolated = 0;
1506         if(button_press || cursor_motion) {
1507 #ifdef USE_KEYFRAME_SPANNING
1508                 double selection_start = mwindow->edl->local_session->get_selectionstart(0);
1509                 double selection_end = mwindow->edl->local_session->get_selectionend(0);
1510
1511                 Auto *first = 0;
1512                 mask_autos->get_prev_auto(track->to_units(selection_start, 0),
1513                         PLAY_FORWARD, first, 1);
1514                 Auto *last = 0;
1515                 mask_autos->get_prev_auto(track->to_units(selection_end, 0),
1516                         PLAY_FORWARD, last, 1);
1517
1518                 if(last == first && (!mwindow->edl->session->auto_keyframes))
1519                         use_interpolated = 0;
1520                 else
1521 // If keyframe spanning occurs, use the interpolated points.
1522 // If new keyframe is generated, use the interpolated points.
1523                         use_interpolated = 1;
1524
1525 #else
1526                 if(mwindow->edl->session->auto_keyframes)
1527                         use_interpolated = 1;
1528 #endif
1529         }
1530         else
1531                 use_interpolated = 1;
1532
1533         if(use_interpolated) {
1534 // Interpolate the points to get exactly what is being rendered at this position.
1535                 mask_autos->get_points(&points,
1536                         mwindow->edl->session->cwindow_mask,
1537                         position,
1538                         PLAY_FORWARD);
1539         }
1540         else {
1541 // Use the prev mask
1542                 Auto *prev = 0;
1543                 mask_autos->get_prev_auto(position,
1544                         PLAY_FORWARD,
1545                         prev,
1546                         1);
1547                 ((MaskAuto*)prev)->get_points(&points,
1548                         mwindow->edl->session->cwindow_mask);
1549         }
1550
1551 // Projector zooms relative to the center of the track output.
1552         float half_track_w = (float)track->track_w / 2;
1553         float half_track_h = (float)track->track_h / 2;
1554 // Translate mask to projection
1555         float projector_x, projector_y, projector_z;
1556         track->automation->get_projector(
1557                 &projector_x, &projector_y, &projector_z,
1558                 position, PLAY_FORWARD);
1559
1560
1561 // Get position of cursor relative to mask
1562         float cursor_x = get_cursor_x(), cursor_y = get_cursor_y();
1563         float mask_cursor_x = cursor_x, mask_cursor_y = cursor_y;
1564         canvas_to_output(mwindow->edl, 0, mask_cursor_x, mask_cursor_y);
1565
1566         projector_x += mwindow->edl->session->output_w / 2;
1567         projector_y += mwindow->edl->session->output_h / 2;
1568         mask_cursor_x = (mask_cursor_x - projector_x) / projector_z + half_track_w;
1569         mask_cursor_y = (mask_cursor_y - projector_y) / projector_z + half_track_h;
1570
1571 // Fix cursor origin
1572         if(button_press) {
1573                 gui->x_origin = mask_cursor_x;
1574                 gui->y_origin = mask_cursor_y;
1575         }
1576
1577         int result = 0;
1578 // Points of closest line
1579         int shortest_point1 = -1;
1580         int shortest_point2 = -1;
1581 // Closest point
1582         int shortest_point = -1;
1583 // Distance to closest line
1584         float shortest_line_distance = BC_INFINITY;
1585 // Distance to closest point
1586         float shortest_point_distance = BC_INFINITY;
1587         int selected_point = -1;
1588         int selected_control_point = -1;
1589         float selected_control_point_distance = BC_INFINITY;
1590         ArrayList<int> x_points;
1591         ArrayList<int> y_points;
1592
1593         if(!cursor_motion) {
1594                 if(draw) {
1595                         get_canvas()->set_color(WHITE);
1596                         get_canvas()->set_inverse();
1597                 }
1598 //printf("CWindowCanvas::do_mask 1 %d\n", points.size());
1599
1600 // Never draw closed polygon and a closed
1601 // polygon is harder to add points to.
1602                 for(int i = 0; i < points.size() && !result; i++) {
1603                         MaskPoint *point1 = points.get(i);
1604                         MaskPoint *point2 = (i >= points.size() - 1) ?
1605                                 points.get(0) : points.get(i + 1);
1606                         if(button_press) {
1607                                 float point_distance1 = line_dist(point1->x,point1->y, mask_cursor_x,mask_cursor_y);
1608                                 if(point_distance1 < shortest_point_distance || shortest_point < 0) {
1609                                         shortest_point_distance = point_distance1;
1610                                         shortest_point = i;
1611                                 }
1612
1613                                 float point_distance2 = line_dist(point2->x,point2->y, mask_cursor_x,mask_cursor_y);
1614                                 if(point_distance2 < shortest_point_distance || shortest_point < 0) {
1615                                         shortest_point_distance = point_distance2;
1616                                         shortest_point = (i >= points.size() - 1) ? 0 : (i + 1);
1617                                 }
1618                         }
1619
1620                         int segments = 1 + line_dist(point1->x,point1->y, point2->x,point2->y);
1621
1622 //printf("CWindowCanvas::do_mask 1 %f, %f -> %f, %f projectorz=%f\n",
1623 //point1->x, point1->y, point2->x, point2->y, projector_z);
1624                         for(int j = 0; j <= segments && !result; j++) {
1625 //printf("CWindowCanvas::do_mask 1 %f, %f -> %f, %f\n", x0, y0, x3, y3);
1626                                 float x0 = point1->x, y0 = point1->y;
1627                                 float x1 = point1->x + point1->control_x2;
1628                                 float y1 = point1->y + point1->control_y2;
1629                                 float x2 = point2->x + point2->control_x1;
1630                                 float y2 = point2->y + point2->control_y1;
1631                                 float x3 = point2->x, y3 = point2->y;
1632                                 float canvas_x0 = (x0 - half_track_w) * projector_z + projector_x;
1633                                 float canvas_y0 = (y0 - half_track_h) * projector_z + projector_y;
1634                                 float canvas_x1 = (x1 - half_track_w) * projector_z + projector_x;
1635                                 float canvas_y1 = (y1 - half_track_h) * projector_z + projector_y;
1636                                 float canvas_x2 = (x2 - half_track_w) * projector_z + projector_x;
1637                                 float canvas_y2 = (y2 - half_track_h) * projector_z + projector_y;
1638                                 float canvas_x3 = (x3 - half_track_w) * projector_z + projector_x;
1639                                 float canvas_y3 = (y3 - half_track_h) * projector_z + projector_y;
1640
1641                                 float t = (float)j / segments;
1642                                 float tpow2 = t * t;
1643                                 float tpow3 = t * t * t;
1644                                 float invt = 1 - t;
1645                                 float invtpow2 = invt * invt;
1646                                 float invtpow3 = invt * invt * invt;
1647
1648                                 float x = (           invtpow3 * x0
1649                                         + 3 * t     * invtpow2 * x1
1650                                         + 3 * tpow2 * invt     * x2
1651                                         +     tpow3            * x3);
1652                                 float y = (           invtpow3 * y0
1653                                         + 3 * t     * invtpow2 * y1
1654                                         + 3 * tpow2 * invt     * y2
1655                                         +     tpow3            * y3);
1656                                 float canvas_x = (x - half_track_w) * projector_z + projector_x;
1657                                 float canvas_y = (y - half_track_h) * projector_z + projector_y;
1658 // Test new point addition
1659                                 if(button_press) {
1660                                         float line_distance = line_dist(x,y, mask_cursor_x,mask_cursor_y);
1661
1662 //printf("CWindowCanvas::do_mask 1 x=%f cursor_x=%f y=%f cursor_y=%f %f %f %d, %d\n",
1663 //  x, cursor_x, y, cursor_y, line_distance, shortest_line_distance, shortest_point1, shortest_point2);
1664                                         if(line_distance < shortest_line_distance ||
1665                                                 shortest_point1 < 0) {
1666                                                 shortest_line_distance = line_distance;
1667                                                 shortest_point1 = i;
1668                                                 shortest_point2 = (i >= points.size() - 1) ? 0 : (i + 1);
1669 //printf("CWindowCanvas::do_mask 2 %f %f %d, %d\n",
1670 //  line_distance, shortest_line_distance, shortest_point1, shortest_point2);
1671                                         }
1672
1673 // Test existing point selection
1674 // Test first point
1675                                         if(gui->ctrl_down()) {
1676                                                 float distance = line_dist(x1,y1, mask_cursor_x,mask_cursor_y);
1677
1678                                                 if(distance < selected_control_point_distance) {
1679                                                         selected_point = i;
1680                                                         selected_control_point = 1;
1681                                                         selected_control_point_distance = distance;
1682                                                 }
1683                                         }
1684                                         else {
1685                                                 if(!gui->shift_down()) {
1686                                                         output_to_canvas(mwindow->edl, 0, canvas_x0, canvas_y0);
1687                                                         if(test_bbox(cursor_x, cursor_y, canvas_x0, canvas_y0)) {
1688                                                                 selected_point = i;
1689                                                         }
1690                                                 }
1691                                                 else {
1692                                                         selected_point = shortest_point;
1693                                                 }
1694                                         }
1695 // Test second point
1696                                         if(gui->ctrl_down()) {
1697                                                 float distance = line_dist(x2,y2, mask_cursor_x,mask_cursor_y);
1698
1699 //printf("CWindowCanvas::do_mask %d %f %f\n", i, distance, selected_control_point_distance);
1700                                                 if(distance < selected_control_point_distance) {
1701                                                         selected_point = (i < points.size() - 1 ? i + 1 : 0);
1702                                                         selected_control_point = 0;
1703                                                         selected_control_point_distance = distance;
1704                                                 }
1705                                         }
1706                                         else if(i < points.size() - 1) {
1707                                                 if(!gui->shift_down()) {
1708                                                         output_to_canvas(mwindow->edl, 0, canvas_x3, canvas_y3);
1709                                                         if(test_bbox(cursor_x, cursor_y, canvas_x3, canvas_y3)) {
1710                                                                 selected_point = (i < points.size() - 1 ? i + 1 : 0);
1711                                                         }
1712                                                 }
1713                                                 else {
1714                                                         selected_point = shortest_point;
1715                                                 }
1716                                         }
1717                                 }
1718
1719                                 output_to_canvas(mwindow->edl, 0, canvas_x, canvas_y);
1720
1721                                 if(j > 0) {
1722
1723                                         if(draw) { // Draw joining line
1724                                                 x_points.append((int)canvas_x);
1725                                                 y_points.append((int)canvas_y);
1726                                         }
1727
1728                                         if(j == segments) {
1729                                                 if(draw) { // Draw second anchor
1730                                                         if(i < points.size() - 1) {
1731                                                                 if(i == gui->affected_point - 1)
1732                                                                         get_canvas()->draw_disc(
1733                                                                                 (int)canvas_x - CONTROL_W / 2,
1734                                                                                 (int)canvas_y - CONTROL_W / 2,
1735                                                                                 CONTROL_W, CONTROL_H);
1736                                                                 else
1737                                                                         get_canvas()->draw_circle(
1738                                                                                 (int)canvas_x - CONTROL_W / 2,
1739                                                                                 (int)canvas_y - CONTROL_W / 2,
1740                                                                                 CONTROL_W, CONTROL_H);
1741 // char string[BCTEXTLEN];
1742 // sprintf(string, "%d", (i < points.size() - 1 ? i + 1 : 0));
1743 // canvas->draw_text((int)canvas_x + CONTROL_W, (int)canvas_y + CONTROL_W, string);
1744                                                         }
1745 // Draw second control point.
1746                                                         output_to_canvas(mwindow->edl, 0, canvas_x2, canvas_y2);
1747                                                         get_canvas()->draw_line(
1748                                                                 (int)canvas_x, (int)canvas_y,
1749                                                                 (int)canvas_x2, (int)canvas_y2);
1750                                                         get_canvas()->draw_rectangle(
1751                                                                 (int)canvas_x2 - CONTROL_W / 2,
1752                                                                 (int)canvas_y2 - CONTROL_H / 2,
1753                                                                 CONTROL_W, CONTROL_H);
1754                                                 }
1755                                         }
1756                                 }
1757                                 else {
1758 // Draw first anchor
1759                                         if(i == 0 && draw) {
1760                                                 char mask_label[BCSTRLEN];
1761                                                 sprintf(mask_label, "%d",
1762                                                         mwindow->edl->session->cwindow_mask);
1763                                                 get_canvas()->draw_text(
1764                                                         (int)canvas_x - FIRST_CONTROL_W,
1765                                                         (int)canvas_y - FIRST_CONTROL_H,
1766                                                         mask_label);
1767
1768                                                 get_canvas()->draw_disc(
1769                                                         (int)canvas_x - FIRST_CONTROL_W / 2,
1770                                                         (int)canvas_y - FIRST_CONTROL_H / 2,
1771                                                         FIRST_CONTROL_W, FIRST_CONTROL_H);
1772                                         }
1773
1774 // Draw first control point.
1775                                         if(draw) {
1776                                                 output_to_canvas(mwindow->edl, 0, canvas_x1, canvas_y1);
1777                                                 get_canvas()->draw_line(
1778                                                         (int)canvas_x, (int)canvas_y,
1779                                                         (int)canvas_x1, (int)canvas_y1);
1780                                                 get_canvas()->draw_rectangle(
1781                                                         (int)canvas_x1 - CONTROL_W / 2,
1782                                                         (int)canvas_y1 - CONTROL_H / 2,
1783                                                         CONTROL_W, CONTROL_H);
1784
1785                                                 x_points.append((int)canvas_x);
1786                                                 y_points.append((int)canvas_y);
1787                                         }
1788                                 }
1789 //printf("CWindowCanvas::do_mask 1\n");
1790
1791                         }
1792                 }
1793 //printf("CWindowCanvas::do_mask 1\n");
1794
1795                 if(draw) {
1796                         get_canvas()->draw_polygon(&x_points, &y_points);
1797                         get_canvas()->set_opaque();
1798                 }
1799 //printf("CWindowCanvas::do_mask 1\n");
1800         }
1801
1802         if(button_press && !result) {
1803                 gui->affected_track = gui->cwindow->calculate_affected_track();
1804
1805 // Get keyframe outside the EDL to edit.  This must be rendered
1806 // instead of the EDL keyframes when it exists.  Then it must be
1807 // applied to the EDL keyframes on buttonrelease.
1808                 if(gui->affected_track) {
1809 #ifdef USE_KEYFRAME_SPANNING
1810 // Make copy of current parameters in local keyframe
1811                         gui->mask_keyframe =
1812                                 (MaskAuto*)gui->cwindow->calculate_affected_auto(
1813                                         mask_autos,
1814                                         0);
1815                         gui->orig_mask_keyframe->copy_data(gui->mask_keyframe);
1816 #else
1817
1818                         gui->mask_keyframe =
1819                                 (MaskAuto*)gui->cwindow->calculate_affected_auto(
1820                                         mask_autos,
1821                                         1);
1822 #endif
1823                 }
1824                 SubMask *mask = gui->mask_keyframe->get_submask(mwindow->edl->session->cwindow_mask);
1825
1826                 if( get_buttonpress() == WHEEL_UP || get_buttonpress() == WHEEL_DOWN ) {
1827                         if( !gui->shift_down() ) {
1828                                 mwindow->undo->update_undo_before(_("mask rotate"), this);
1829                                 gui->current_operation = CWINDOW_MASK_ROTATE;
1830                         }
1831                         else {
1832                                 mwindow->undo->update_undo_before(_("mask scale"), this);
1833                                 gui->current_operation = CWINDOW_MASK_SCALE;
1834                         }
1835                         gui->affected_point = 0;
1836                 }
1837                 else
1838 // Translate entire keyframe
1839                 if(gui->alt_down() && mask->points.size()) {
1840                         mwindow->undo->update_undo_before(_("mask translate"), 0);
1841                         gui->current_operation = CWINDOW_MASK_TRANSLATE;
1842                         gui->affected_point = 0;
1843                 }
1844                 else
1845 // Existing point or control point was selected
1846                 if(selected_point >= 0) {
1847                         mwindow->undo->update_undo_before(_("mask adjust"), 0);
1848                         gui->affected_point = selected_point;
1849
1850                         if(selected_control_point == 0)
1851                                 gui->current_operation = CWINDOW_MASK_CONTROL_IN;
1852                         else
1853                         if(selected_control_point == 1)
1854                                 gui->current_operation = CWINDOW_MASK_CONTROL_OUT;
1855                         else
1856                                 gui->current_operation = mwindow->edl->session->cwindow_operation;
1857                 }
1858                 else // No existing point or control point was selected so create a new one
1859                 if(!gui->ctrl_down() && !gui->alt_down()) {
1860                         mwindow->undo->update_undo_before(_("mask point"), 0);
1861 // Create the template
1862                         MaskPoint *point = new MaskPoint;
1863                         point->x = mask_cursor_x;
1864                         point->y = mask_cursor_y;
1865                         point->control_x1 = 0;
1866                         point->control_y1 = 0;
1867                         point->control_x2 = 0;
1868                         point->control_y2 = 0;
1869
1870
1871                         if(shortest_point2 < shortest_point1) {
1872                                 shortest_point2 ^= shortest_point1;
1873                                 shortest_point1 ^= shortest_point2;
1874                                 shortest_point2 ^= shortest_point1;
1875                         }
1876
1877
1878
1879 // printf("CWindowGUI::do_mask 40\n");
1880 // mwindow->edl->dump();
1881 // printf("CWindowGUI::do_mask 50\n");
1882
1883
1884
1885 //printf("CWindowCanvas::do_mask 1 %f %f %d %d\n",
1886 //      shortest_line_distance, shortest_point_distance, shortest_point1, shortest_point2);
1887 //printf("CWindowCanvas::do_mask %d %d\n", shortest_point1, shortest_point2);
1888
1889 // Append to end of list
1890                         if( shortest_point1 == shortest_point2 ||
1891                             labs(shortest_point1 - shortest_point2) > 1) {
1892 #ifdef USE_KEYFRAME_SPANNING
1893
1894                                 MaskPoint *new_point = new MaskPoint;
1895                                 points.append(new_point);
1896                                 *new_point = *point;
1897                                 gui->affected_point = points.size() - 1;
1898
1899 #else
1900
1901 // Need to apply the new point to every keyframe
1902                                 for(MaskAuto *current = (MaskAuto*)mask_autos->default_auto; current; ) {
1903                                         SubMask *submask = current->get_submask(mwindow->edl->session->cwindow_mask);
1904                                         MaskPoint *new_point = new MaskPoint;
1905                                         submask->points.append(new_point);
1906                                         *new_point = *point;
1907                                         if(current == (MaskAuto*)mask_autos->default_auto)
1908                                                 current = (MaskAuto*)mask_autos->first;
1909                                         else
1910                                                 current = (MaskAuto*)NEXT;
1911                                 }
1912                                 gui->affected_point = mask->points.size() - 1;
1913 #endif
1914
1915                                 result = 1;
1916                         }
1917                         else
1918 // Insert between 2 points, shifting back point 2
1919                         if(shortest_point1 >= 0 && shortest_point2 >= 0) {
1920
1921 #ifdef USE_KEYFRAME_SPANNING
1922 // In case the keyframe point count isn't synchronized with the rest of the keyframes,
1923 // avoid a crash.
1924                                 if(points.size() >= shortest_point2) {
1925                                         MaskPoint *new_point = new MaskPoint;
1926                                         points.append(0);
1927                                         for(int i = points.size() - 1;
1928                                                 i > shortest_point2;
1929                                                 i--)
1930                                                 points.values[i] = points.values[i - 1];
1931                                         points.values[shortest_point2] = new_point;
1932
1933                                         *new_point = *point;
1934                                 }
1935
1936 #else
1937
1938                                 for(MaskAuto *current = (MaskAuto*)mask_autos->default_auto; current; ) {
1939                                         SubMask *submask = current->get_submask(mwindow->edl->session->cwindow_mask);
1940 // In case the keyframe point count isn't synchronized with the rest of the keyframes,
1941 // avoid a crash.
1942                                         if(submask->points.size() >= shortest_point2) {
1943                                                 MaskPoint *new_point = new MaskPoint;
1944                                                 submask->points.append(0);
1945                                                 for(int i = submask->points.size() - 1;
1946                                                         i > shortest_point2;
1947                                                         i--)
1948                                                         submask->points.values[i] = submask->points.values[i - 1];
1949                                                 submask->points.values[shortest_point2] = new_point;
1950
1951                                                 *new_point = *point;
1952                                         }
1953
1954                                         if(current == (MaskAuto*)mask_autos->default_auto)
1955                                                 current = (MaskAuto*)mask_autos->first;
1956                                         else
1957                                                 current = (MaskAuto*)NEXT;
1958                                 }
1959
1960 #endif
1961                                 gui->affected_point = shortest_point2;
1962                                 result = 1;
1963                         }
1964
1965
1966 // printf("CWindowGUI::do_mask 20\n");
1967 // mwindow->edl->dump();
1968 // printf("CWindowGUI::do_mask 30\n");
1969
1970                         if(!result) {
1971 //printf("CWindowCanvas::do_mask 1\n");
1972 // Create the first point.
1973 #ifdef USE_KEYFRAME_SPANNING
1974                                 MaskPoint *new_point = new MaskPoint;
1975                                 points.append(new_point);
1976                                 *new_point = *point;
1977                                 gui->affected_point = points.size() - 1;
1978 #else
1979                                 for(MaskAuto *current = (MaskAuto*)mask_autos->default_auto; current; ) {
1980                                         SubMask *submask = current->get_submask(mwindow->edl->session->cwindow_mask);
1981                                         MaskPoint *new_point = new MaskPoint;
1982                                         submask->points.append(new_point);
1983                                         *new_point = *point;
1984                                         if(current == (MaskAuto*)mask_autos->default_auto)
1985                                                 current = (MaskAuto*)mask_autos->first;
1986                                         else
1987                                                 current = (MaskAuto*)NEXT;
1988                                 }
1989                                 gui->affected_point = points.size() - 1;
1990 #endif
1991
1992 //printf("CWindowCanvas::do_mask 3 %d\n", mask->points.size());
1993                         }
1994
1995                         gui->current_operation = mwindow->edl->session->cwindow_operation;
1996 // Delete the template
1997                         delete point;
1998                 }
1999
2000                 result = 1;
2001                 rerender = 1;
2002                 redraw = 1;
2003         }
2004
2005         if(button_press && result) {
2006 #ifdef USE_KEYFRAME_SPANNING
2007                 ArrayList<MaskPoint*> &mask_points = points;
2008 #else
2009                 SubMask *mask = gui->mask_keyframe->get_submask(mwindow->edl->session->cwindow_mask);
2010                 ArrayList<MaskPoint*> &mask_points = mask->points;
2011 #endif
2012                 MaskPoint *point = mask_points.values[gui->affected_point];
2013                 gui->center_x = point->x;
2014                 gui->center_y = point->y;
2015                 gui->control_in_x = point->control_x1;
2016                 gui->control_in_y = point->control_y1;
2017                 gui->control_out_x = point->control_x2;
2018                 gui->control_out_y = point->control_y2;
2019                 gui->tool_panel->raise_window();
2020         }
2021
2022 //printf("CWindowCanvas::do_mask 8\n");
2023         if( cursor_motion ) {
2024
2025 #ifdef USE_KEYFRAME_SPANNING
2026 // Must update the reference keyframes for every cursor motion
2027                 gui->mask_keyframe = (MaskAuto*)gui->cwindow->
2028                         calculate_affected_auto(mask_autos, 0);
2029                 gui->orig_mask_keyframe->copy_data(gui->mask_keyframe);
2030 #endif
2031
2032 //printf("CWindowCanvas::do_mask %d %d\n", __LINE__, gui->affected_point);
2033
2034                 SubMask *mask = gui->mask_keyframe->get_submask(mwindow->edl->session->cwindow_mask);
2035                 if( gui->affected_point >= 0 && gui->affected_point < mask->points.size() &&
2036                         gui->current_operation != CWINDOW_NONE) {
2037 //                      mwindow->undo->update_undo_before(_("mask point"), this);
2038 #ifdef USE_KEYFRAME_SPANNING
2039                         ArrayList<MaskPoint*> &mask_points = points;
2040 #else
2041                         ArrayList<MaskPoint*> &mask_points = mask->points;
2042 #endif
2043                         MaskPoint *point = mask_points.get(gui->affected_point);
2044 //                      canvas_to_output(mwindow->edl, 0, cursor_x, cursor_y);
2045 //printf("CWindowCanvas::do_mask 9 %d %d\n", mask_points.size(), gui->affected_point);
2046
2047                         float last_x = point->x;
2048                         float last_y = point->y;
2049                         float last_control_x1 = point->control_x1;
2050                         float last_control_y1 = point->control_y1;
2051                         float last_control_x2 = point->control_x2;
2052                         float last_control_y2 = point->control_y2;
2053                         int rotate = 0;
2054
2055                         switch(gui->current_operation) {
2056                         case CWINDOW_MASK:
2057 //printf("CWindowCanvas::do_mask %d %d\n", __LINE__, gui->affected_point);
2058                                 point->x = mask_cursor_x - gui->x_origin + gui->center_x;
2059                                 point->y = mask_cursor_y - gui->y_origin + gui->center_y;
2060                                 break;
2061
2062                         case CWINDOW_MASK_CONTROL_IN:
2063                                 point->control_x1 = mask_cursor_x - gui->x_origin + gui->control_in_x;
2064                                 point->control_y1 = mask_cursor_y - gui->y_origin + gui->control_in_y;
2065                                 break;
2066
2067                         case CWINDOW_MASK_CONTROL_OUT:
2068                                 point->control_x2 = mask_cursor_x - gui->x_origin + gui->control_out_x;
2069                                 point->control_y2 = mask_cursor_y - gui->y_origin + gui->control_out_y;
2070                                 break;
2071
2072                         case CWINDOW_MASK_TRANSLATE:
2073                                 for(int i = 0; i < mask_points.size(); i++) {
2074                                         mask_points.values[i]->x += mask_cursor_x - gui->x_origin;
2075                                         mask_points.values[i]->y += mask_cursor_y - gui->y_origin;
2076                                 }
2077                                 gui->x_origin = mask_cursor_x;
2078                                 gui->y_origin = mask_cursor_y;
2079                                 break;
2080                         case CWINDOW_MASK_ROTATE:
2081                                 rotate = 1;
2082                         case CWINDOW_MASK_SCALE: {
2083                                 int button_no = get_buttonpress();
2084                                 double scale = button_no == WHEEL_UP ? 1.02 : 0.98;
2085                                 double theta = button_no == WHEEL_UP ? M_PI/360. : -M_PI/360.;
2086                                 float st = sin(theta), ct = cos(theta);
2087                                 gui->x_origin = mask_cursor_x;
2088                                 gui->y_origin = mask_cursor_y;
2089                                 for( int i=0; i<mask_points.size(); ++i ) {
2090                                         MaskPoint *point = mask_points.values[i];
2091                                         float px = point->x - mask_cursor_x;
2092                                         float py = point->y - mask_cursor_y;
2093                                         float nx = !rotate ? px*scale : px*ct + py*st;
2094                                         float ny = !rotate ? py*scale : py*ct - px*st;
2095                                         point->x = nx + mask_cursor_x;
2096                                         point->y = ny + mask_cursor_y;
2097                                 }
2098                                 break; }
2099                         }
2100
2101                         if( !EQUIV(last_x, point->x) ||
2102                                 !EQUIV(last_y, point->y) ||
2103                                 !EQUIV(last_control_x1, point->control_x1) ||
2104                                 !EQUIV(last_control_y1, point->control_y1) ||
2105                                 !EQUIV(last_control_x2, point->control_x2) ||
2106                                 !EQUIV(last_control_y2, point->control_y2)) {
2107                                 rerender = 1;
2108                                 redraw = 1;
2109                         }
2110                 }
2111                 else
2112                 if(gui->current_operation == CWINDOW_NONE) {
2113 //                      printf("CWindowCanvas::do_mask %d\n", __LINE__);
2114                         int over_point = 0;
2115                         for(int i = 0; i < points.size() && !over_point; i++) {
2116                                 MaskPoint *point = points.get(i);
2117                                 float x0 = point->x;
2118                                 float y0 = point->y;
2119                                 float x1 = point->x + point->control_x1;
2120                                 float y1 = point->y + point->control_y1;
2121                                 float x2 = point->x + point->control_x2;
2122                                 float y2 = point->y + point->control_y2;
2123                                 float canvas_x0 = (x0 - half_track_w) * projector_z + projector_x;
2124                                 float canvas_y0 = (y0 - half_track_h) * projector_z + projector_y;
2125
2126                                 output_to_canvas(mwindow->edl, 0, canvas_x0, canvas_y0);
2127                                 if(test_bbox(cursor_x, cursor_y, canvas_x0, canvas_y0)) {
2128                                         over_point = 1;
2129                                 }
2130
2131                                 if(!over_point && gui->ctrl_down()) {
2132                                         float canvas_x1 = (x1 - half_track_w) * projector_z + projector_x;
2133                                         float canvas_y1 = (y1 - half_track_h) * projector_z + projector_y;
2134                                         output_to_canvas(mwindow->edl, 0, canvas_x1, canvas_y1);
2135                                         if(test_bbox(cursor_x, cursor_y, canvas_x1, canvas_y1)) {
2136                                                 over_point = 1;
2137                                         }
2138                                         else {
2139                                                 float canvas_x2 = (x2 - half_track_w) * projector_z + projector_x;
2140                                                 float canvas_y2 = (y2 - half_track_h) * projector_z + projector_y;
2141                                                 output_to_canvas(mwindow->edl, 0, canvas_x2, canvas_y2);
2142                                                 if(test_bbox(cursor_x, cursor_y, canvas_x2, canvas_y2)) {
2143                                                         over_point = 1;
2144                                                 }
2145                                         }
2146                                 }
2147                         }
2148
2149                         set_cursor( over_point ? ARROW_CURSOR : CROSS_CURSOR );
2150                 }
2151
2152                 result = 1;
2153         }
2154 //printf("CWindowCanvas::do_mask 2 %d %d %d\n", result, rerender, redraw);
2155
2156
2157 #ifdef USE_KEYFRAME_SPANNING
2158 // Must commit change after operation.
2159         if(rerender && track) {
2160 // Swap EDL keyframe with original.
2161 // Apply new values to keyframe span
2162                 MaskAuto temp_keyframe(mwindow->edl, mask_autos);
2163                 temp_keyframe.copy_data(gui->mask_keyframe);
2164 // Apply interpolated points back to keyframe
2165                 temp_keyframe.set_points(&points, mwindow->edl->session->cwindow_mask);
2166                 gui->mask_keyframe->copy_data(gui->orig_mask_keyframe);
2167                 mask_autos->update_parameter(&temp_keyframe);
2168         }
2169 #endif
2170
2171         points.remove_all_objects();
2172 //printf("CWindowCanvas::do_mask 20\n");
2173         return result;
2174 }
2175
2176 int CWindowCanvas::do_eyedrop(int &rerender, int button_press, int draw)
2177 {
2178         int result = 0;
2179         int radius = mwindow->edl->session->eyedrop_radius;
2180         int row1 = 0;
2181         int row2 = 0;
2182         int column1 = 0;
2183         int column2 = 0;
2184
2185
2186
2187         if(refresh_frame && refresh_frame->get_w()>0 && refresh_frame->get_h()>0)
2188         {
2189
2190                 if(draw)
2191                 {
2192                         row1 = gui->eyedrop_y - radius;
2193                         row2 = gui->eyedrop_y + radius;
2194                         column1 = gui->eyedrop_x - radius;
2195                         column2 = gui->eyedrop_x + radius;
2196
2197                         CLAMP(row1, 0, refresh_frame->get_h() - 1);
2198                         CLAMP(row2, 0, refresh_frame->get_h() - 1);
2199                         CLAMP(column1, 0, refresh_frame->get_w() - 1);
2200                         CLAMP(column2, 0, refresh_frame->get_w() - 1);
2201
2202                         if(row2 <= row1) row2 = row1 + 1;
2203                         if(column2 <= column1) column2 = column1 + 1;
2204
2205                         float x1 = column1;
2206                         float y1 = row1;
2207                         float x2 = column2;
2208                         float y2 = row2;
2209
2210                         output_to_canvas(mwindow->edl, 0, x1, y1);
2211                         output_to_canvas(mwindow->edl, 0, x2, y2);
2212 //printf("CWindowCanvas::do_eyedrop %d %f %f %f %f\n", __LINE__, x1, x2, y1, y2);
2213
2214                         if(x2 - x1 >= 1 && y2 - y1 >= 1)
2215                         {
2216                                 get_canvas()->set_inverse();
2217                                 get_canvas()->set_color(WHITE);
2218
2219                                 get_canvas()->draw_rectangle((int)x1,
2220                                         (int)y1,
2221                                         (int)(x2 - x1),
2222                                         (int)(y2 - y1));
2223
2224                                 get_canvas()->set_opaque();
2225                                 get_canvas()->flash();
2226                         }
2227                         return 0;
2228                 }
2229         }
2230
2231         if(button_press)
2232         {
2233                 gui->current_operation = CWINDOW_EYEDROP;
2234                 gui->tool_panel->raise_window();
2235         }
2236
2237         if(gui->current_operation == CWINDOW_EYEDROP)
2238         {
2239                 mwindow->undo->update_undo_before(_("Eyedrop"), this);
2240
2241 // Get color out of frame.
2242 // Doesn't work during playback because that bypasses the refresh frame.
2243                 if(refresh_frame && refresh_frame->get_w()>0 && refresh_frame->get_h()>0)
2244                 {
2245                         float cursor_x = get_cursor_x();
2246                         float cursor_y = get_cursor_y();
2247                         canvas_to_output(mwindow->edl, 0, cursor_x, cursor_y);
2248                         CLAMP(cursor_x, 0, refresh_frame->get_w() - 1);
2249                         CLAMP(cursor_y, 0, refresh_frame->get_h() - 1);
2250
2251                         row1 = cursor_y - radius;
2252                         row2 = cursor_y + radius;
2253                         column1 = cursor_x - radius;
2254                         column2 = cursor_x + radius;
2255                         CLAMP(row1, 0, refresh_frame->get_h() - 1);
2256                         CLAMP(row2, 0, refresh_frame->get_h() - 1);
2257                         CLAMP(column1, 0, refresh_frame->get_w() - 1);
2258                         CLAMP(column2, 0, refresh_frame->get_w() - 1);
2259                         if(row2 <= row1) row2 = row1 + 1;
2260                         if(column2 <= column1) column2 = column1 + 1;
2261
2262
2263 // hide it
2264                         if(gui->eyedrop_visible)
2265                         {
2266                                 int temp;
2267                                 do_eyedrop(temp, 0, 1);
2268                                 gui->eyedrop_visible = 0;
2269                         }
2270
2271                         gui->eyedrop_x = cursor_x;
2272                         gui->eyedrop_y = cursor_y;
2273
2274 // show it
2275                         {
2276                                 int temp;
2277                                 do_eyedrop(temp, 0, 1);
2278                                 gui->eyedrop_visible = 1;
2279                         }
2280
2281 // Decompression coefficients straight out of jpeglib
2282 #define V_TO_R    1.40200
2283 #define V_TO_G    -0.71414
2284
2285 #define U_TO_G    -0.34414
2286 #define U_TO_B    1.77200
2287
2288 #define GET_COLOR(type, components, max, do_yuv) \
2289 { \
2290         type *row = (type*)(refresh_frame->get_rows()[i]) + \
2291                 j * components; \
2292         float red = (float)*row++ / max; \
2293         float green = (float)*row++ / max; \
2294         float blue = (float)*row++ / max; \
2295         if(do_yuv) \
2296         { \
2297                 float r = red + V_TO_R * (blue - 0.5); \
2298                 float g = red + U_TO_G * (green - 0.5) + V_TO_G * (blue - 0.5); \
2299                 float b = red + U_TO_B * (green - 0.5); \
2300                 mwindow->edl->local_session->red += r; \
2301                 mwindow->edl->local_session->green += g; \
2302                 mwindow->edl->local_session->blue += b; \
2303                 if(r > mwindow->edl->local_session->red_max) mwindow->edl->local_session->red_max = r; \
2304                 if(g > mwindow->edl->local_session->green_max) mwindow->edl->local_session->green_max = g; \
2305                 if(b > mwindow->edl->local_session->blue_max) mwindow->edl->local_session->blue_max = b; \
2306         } \
2307         else \
2308         { \
2309                 mwindow->edl->local_session->red += red; \
2310                 mwindow->edl->local_session->green += green; \
2311                 mwindow->edl->local_session->blue += blue; \
2312                 if(red > mwindow->edl->local_session->red_max) mwindow->edl->local_session->red_max = red; \
2313                 if(green > mwindow->edl->local_session->green_max) mwindow->edl->local_session->green_max = green; \
2314                 if(blue > mwindow->edl->local_session->blue_max) mwindow->edl->local_session->blue_max = blue; \
2315         } \
2316 }
2317
2318
2319
2320                         mwindow->edl->local_session->red = 0;
2321                         mwindow->edl->local_session->green = 0;
2322                         mwindow->edl->local_session->blue = 0;
2323                         mwindow->edl->local_session->red_max = 0;
2324                         mwindow->edl->local_session->green_max = 0;
2325                         mwindow->edl->local_session->blue_max = 0;
2326                         for(int i = row1; i < row2; i++)
2327                         {
2328                                 for(int j = column1; j < column2; j++)
2329                                 {
2330                                         switch(refresh_frame->get_color_model())
2331                                         {
2332                                                 case BC_YUV888:
2333                                                         GET_COLOR(unsigned char, 3, 0xff, 1);
2334                                                         break;
2335                                                 case BC_YUVA8888:
2336                                                         GET_COLOR(unsigned char, 4, 0xff, 1);
2337                                                         break;
2338                                                 case BC_YUV161616:
2339                                                         GET_COLOR(uint16_t, 3, 0xffff, 1);
2340                                                         break;
2341                                                 case BC_YUVA16161616:
2342                                                         GET_COLOR(uint16_t, 4, 0xffff, 1);
2343                                                         break;
2344                                                 case BC_RGB888:
2345                                                         GET_COLOR(unsigned char, 3, 0xff, 0);
2346                                                         break;
2347                                                 case BC_RGBA8888:
2348                                                         GET_COLOR(unsigned char, 4, 0xff, 0);
2349                                                         break;
2350                                                 case BC_RGB_FLOAT:
2351                                                         GET_COLOR(float, 3, 1.0, 0);
2352                                                         break;
2353                                                 case BC_RGBA_FLOAT:
2354                                                         GET_COLOR(float, 4, 1.0, 0);
2355                                                         break;
2356                                         }
2357                                 }
2358                         }
2359
2360                         mwindow->edl->local_session->red /= (row2 - row1) * (column2 - column1);
2361                         mwindow->edl->local_session->green /= (row2 - row1) * (column2 - column1);
2362                         mwindow->edl->local_session->blue /= (row2 - row1) * (column2 - column1);
2363
2364                 }
2365                 else
2366                 {
2367                         mwindow->edl->local_session->red = 0;
2368                         mwindow->edl->local_session->green = 0;
2369                         mwindow->edl->local_session->blue = 0;
2370                         gui->eyedrop_visible = 0;
2371                 }
2372
2373
2374                 gui->update_tool();
2375
2376
2377
2378                 result = 1;
2379 // Can't rerender since the color value is from the output of any effect it
2380 // goes into.
2381 //              rerender = 1;
2382                 mwindow->undo->update_undo_after(_("Eyedrop"), LOAD_SESSION);
2383         }
2384
2385         return result;
2386 }
2387
2388 int CWindowCanvas::need_overlays()
2389 {
2390         if( mwindow->edl->session->safe_regions ) return 1;
2391         if( mwindow->edl->session->cwindow_scrollbars ) return 1;
2392         if( gui->highlighted ) return 1;
2393         switch( mwindow->edl->session->cwindow_operation ) {
2394                 case CWINDOW_EYEDROP:
2395                         if( ! gui->eyedrop_visible ) break;
2396                 case CWINDOW_CAMERA:
2397                 case CWINDOW_PROJECTOR:
2398                 case CWINDOW_CROP:
2399                 case CWINDOW_MASK:
2400                 case CWINDOW_RULER:
2401                         return 1;
2402         }
2403         return 0;
2404 }
2405
2406 void CWindowCanvas::draw_overlays()
2407 {
2408         if(mwindow->edl->session->safe_regions)
2409         {
2410                 draw_safe_regions();
2411         }
2412
2413         if(mwindow->edl->session->cwindow_scrollbars)
2414         {
2415 // Always draw output rectangle
2416                 float x1, y1, x2, y2;
2417                 x1 = 0;
2418                 x2 = mwindow->edl->session->output_w;
2419                 y1 = 0;
2420                 y2 = mwindow->edl->session->output_h;
2421                 output_to_canvas(mwindow->edl, 0, x1, y1);
2422                 output_to_canvas(mwindow->edl, 0, x2, y2);
2423
2424                 get_canvas()->set_inverse();
2425                 get_canvas()->set_color(WHITE);
2426
2427                 get_canvas()->draw_rectangle((int)x1,
2428                                 (int)y1,
2429                                 (int)(x2 - x1),
2430                                 (int)(y2 - y1));
2431
2432                 get_canvas()->set_opaque();
2433         }
2434
2435         if(gui->highlighted)
2436         {
2437                 get_canvas()->set_color(WHITE);
2438                 get_canvas()->set_inverse();
2439                 get_canvas()->draw_rectangle(0, 0, get_canvas()->get_w(), get_canvas()->get_h());
2440                 get_canvas()->draw_rectangle(1, 1, get_canvas()->get_w() - 2, get_canvas()->get_h() - 2);
2441                 get_canvas()->set_opaque();
2442         }
2443
2444         int temp1 = 0, temp2 = 0;
2445 //printf("CWindowCanvas::draw_overlays 1 %d\n", mwindow->edl->session->cwindow_operation);
2446         switch(mwindow->edl->session->cwindow_operation)
2447         {
2448                 case CWINDOW_CAMERA:
2449                         draw_outlines(1);
2450                         break;
2451
2452                 case CWINDOW_PROJECTOR:
2453                         draw_outlines(0);
2454                         break;
2455
2456                 case CWINDOW_CROP:
2457                         draw_crop();
2458                         break;
2459
2460                 case CWINDOW_MASK:
2461                         do_mask(temp1, temp2, 0, 0, 1);
2462                         break;
2463
2464                 case CWINDOW_RULER:
2465                         do_ruler(1, 0, 0, 0);
2466                         break;
2467
2468                 case CWINDOW_EYEDROP:
2469                 if(gui->eyedrop_visible)
2470                 {
2471                         int rerender;
2472                         do_eyedrop(rerender, 0, 1);
2473                         gui->eyedrop_visible = 1;
2474                         break;
2475                 }
2476         }
2477 }
2478
2479 void CWindowCanvas::draw_safe_regions()
2480 {
2481         float action_x1, action_x2, action_y1, action_y2;
2482         float title_x1, title_x2, title_y1, title_y2;
2483
2484         action_x1 = mwindow->edl->session->output_w / 2 - mwindow->edl->session->output_w / 2 * 0.9;
2485         action_x2 = mwindow->edl->session->output_w / 2 + mwindow->edl->session->output_w / 2 * 0.9;
2486         action_y1 = mwindow->edl->session->output_h / 2 - mwindow->edl->session->output_h / 2 * 0.9;
2487         action_y2 = mwindow->edl->session->output_h / 2 + mwindow->edl->session->output_h / 2 * 0.9;
2488         title_x1 = mwindow->edl->session->output_w / 2 - mwindow->edl->session->output_w / 2 * 0.8;
2489         title_x2 = mwindow->edl->session->output_w / 2 + mwindow->edl->session->output_w / 2 * 0.8;
2490         title_y1 = mwindow->edl->session->output_h / 2 - mwindow->edl->session->output_h / 2 * 0.8;
2491         title_y2 = mwindow->edl->session->output_h / 2 + mwindow->edl->session->output_h / 2 * 0.8;
2492
2493         output_to_canvas(mwindow->edl, 0, action_x1, action_y1);
2494         output_to_canvas(mwindow->edl, 0, action_x2, action_y2);
2495         output_to_canvas(mwindow->edl, 0, title_x1, title_y1);
2496         output_to_canvas(mwindow->edl, 0, title_x2, title_y2);
2497
2498         get_canvas()->set_inverse();
2499         get_canvas()->set_color(WHITE);
2500
2501         get_canvas()->draw_rectangle((int)action_x1,
2502                         (int)action_y1,
2503                         (int)(action_x2 - action_x1),
2504                         (int)(action_y2 - action_y1));
2505         get_canvas()->draw_rectangle((int)title_x1,
2506                         (int)title_y1,
2507                         (int)(title_x2 - title_x1),
2508                         (int)(title_y2 - title_y1));
2509
2510         get_canvas()->set_opaque();
2511 }
2512
2513
2514 void CWindowCanvas::create_keyframe(int do_camera)
2515 {
2516         Track *affected_track = gui->cwindow->calculate_affected_track();
2517         if( affected_track ) {
2518                 double pos = mwindow->edl->local_session->get_selectionstart(1);
2519                 int64_t position = affected_track->to_units(pos, 0);
2520                 int ix = do_camera ? AUTOMATION_CAMERA_X : AUTOMATION_PROJECTOR_X;
2521                 int iy = do_camera ? AUTOMATION_CAMERA_Y : AUTOMATION_PROJECTOR_Y;
2522                 int iz = do_camera ? AUTOMATION_CAMERA_Z : AUTOMATION_PROJECTOR_Z;
2523                 FloatAuto *prev, *next;
2524                 FloatAutos **autos = (FloatAutos**)affected_track->automation->autos;
2525                 FloatAutos *x_autos = autos[ix];  prev = 0;  next = 0;
2526                 float x_value = x_autos->get_value(position, PLAY_FORWARD, prev, next);
2527                 FloatAutos *y_autos = autos[iy];  prev = 0;  next = 0;
2528                 float y_value = y_autos->get_value(position, PLAY_FORWARD, prev, next);
2529                 FloatAutos *z_autos = autos[iz];  prev = 0;  next = 0;
2530                 float z_value = z_autos->get_value(position, PLAY_FORWARD, prev, next);
2531                 FloatAuto *x_keyframe = 0, *y_keyframe = 0, *z_keyframe = 0;
2532
2533                 gui->cwindow->calculate_affected_autos(affected_track,
2534                         &x_keyframe, &y_keyframe, &z_keyframe,
2535                         do_camera, -1, -1, -1, 0);
2536                 x_keyframe->set_value(x_value);
2537                 y_keyframe->set_value(y_value);
2538                 z_keyframe->set_value(z_value);
2539
2540                 gui->sync_parameters(CHANGE_PARAMS, 1, 1);
2541         }
2542 }
2543
2544 void CWindowCanvas::camera_keyframe() { create_keyframe(1); }
2545 void CWindowCanvas::projector_keyframe() { create_keyframe(0); }
2546
2547 void CWindowCanvas::reset_keyframe(int do_camera)
2548 {
2549         Track *affected_track = gui->cwindow->calculate_affected_track();
2550         if( affected_track ) {
2551                 FloatAuto *x_keyframe = 0, *y_keyframe = 0, *z_keyframe = 0;
2552                 gui->cwindow->calculate_affected_autos(affected_track,
2553                         &x_keyframe, &y_keyframe, &z_keyframe,
2554                         do_camera, 1, 1, 1);
2555
2556                 x_keyframe->set_value(0);
2557                 y_keyframe->set_value(0);
2558                 z_keyframe->set_value(1);
2559
2560                 gui->sync_parameters(CHANGE_PARAMS, 1, 1);
2561         }
2562 }
2563
2564 void CWindowCanvas::reset_camera() { reset_keyframe(1); }
2565 void CWindowCanvas::reset_projector() { reset_keyframe(0); }
2566
2567
2568 int CWindowCanvas::test_crop(int button_press, int &redraw)
2569 {
2570         int result = 0;
2571         int handle_selected = -1;
2572         float x1 = mwindow->edl->session->crop_x1;
2573         float y1 = mwindow->edl->session->crop_y1;
2574         float x2 = mwindow->edl->session->crop_x2;
2575         float y2 = mwindow->edl->session->crop_y2;
2576         float cursor_x = get_cursor_x();
2577         float cursor_y = get_cursor_y();
2578         float canvas_x1 = x1;
2579         float canvas_y1 = y1;
2580         float canvas_x2 = x2;
2581         float canvas_y2 = y2;
2582         float canvas_cursor_x = cursor_x;
2583         float canvas_cursor_y = cursor_y;
2584
2585         canvas_to_output(mwindow->edl, 0, cursor_x, cursor_y);
2586 // Use screen normalized coordinates for hot spot tests.
2587         output_to_canvas(mwindow->edl, 0, canvas_x1, canvas_y1);
2588         output_to_canvas(mwindow->edl, 0, canvas_x2, canvas_y2);
2589
2590
2591         if(gui->current_operation == CWINDOW_CROP)
2592         {
2593                 handle_selected = gui->crop_handle;
2594         }
2595         else
2596         if(canvas_cursor_x >= canvas_x1 && canvas_cursor_x < canvas_x1 + CROPHANDLE_W &&
2597                 canvas_cursor_y >= canvas_y1 && canvas_cursor_y < canvas_y1 + CROPHANDLE_H)
2598         {
2599                 handle_selected = 0;
2600                 gui->crop_origin_x = x1;
2601                 gui->crop_origin_y = y1;
2602         }
2603         else
2604         if(canvas_cursor_x >= canvas_x2 - CROPHANDLE_W && canvas_cursor_x < canvas_x2 &&
2605                 canvas_cursor_y >= canvas_y1 && canvas_cursor_y < canvas_y1 + CROPHANDLE_H)
2606         {
2607                 handle_selected = 1;
2608                 gui->crop_origin_x = x2;
2609                 gui->crop_origin_y = y1;
2610         }
2611         else
2612         if(canvas_cursor_x >= canvas_x1 && canvas_cursor_x < canvas_x1 + CROPHANDLE_W &&
2613                 canvas_cursor_y >= canvas_y2 - CROPHANDLE_H && canvas_cursor_y < canvas_y2)
2614         {
2615                 handle_selected = 2;
2616                 gui->crop_origin_x = x1;
2617                 gui->crop_origin_y = y2;
2618         }
2619         else
2620         if(canvas_cursor_x >= canvas_x2 - CROPHANDLE_W && canvas_cursor_x < canvas_x2 &&
2621                 canvas_cursor_y >= canvas_y2 - CROPHANDLE_H && canvas_cursor_y < canvas_y2)
2622         {
2623                 handle_selected = 3;
2624                 gui->crop_origin_x = x2;
2625                 gui->crop_origin_y = y2;
2626         }
2627         else
2628 // Start new box
2629         {
2630                 gui->crop_origin_x = cursor_x;
2631                 gui->crop_origin_y = cursor_y;
2632         }
2633
2634 // printf("test crop %d %d\n",
2635 //      gui->current_operation,
2636 //      handle_selected);
2637
2638 // Start dragging.
2639         if(button_press)
2640         {
2641                 if(gui->alt_down())
2642                 {
2643                         gui->crop_translate = 1;
2644                         gui->crop_origin_x1 = x1;
2645                         gui->crop_origin_y1 = y1;
2646                         gui->crop_origin_x2 = x2;
2647                         gui->crop_origin_y2 = y2;
2648                 }
2649                 else
2650                         gui->crop_translate = 0;
2651
2652                 gui->current_operation = CWINDOW_CROP;
2653                 gui->crop_handle = handle_selected;
2654                 gui->x_origin = cursor_x;
2655                 gui->y_origin = cursor_y;
2656                 gui->tool_panel->raise_window();
2657                 result = 1;
2658
2659                 if(handle_selected < 0 && !gui->crop_translate)
2660                 {
2661                         x2 = x1 = cursor_x;
2662                         y2 = y1 = cursor_y;
2663                         mwindow->edl->session->crop_x1 = (int)x1;
2664                         mwindow->edl->session->crop_y1 = (int)y1;
2665                         mwindow->edl->session->crop_x2 = (int)x2;
2666                         mwindow->edl->session->crop_y2 = (int)y2;
2667                         redraw = 1;
2668                 }
2669         }
2670         else
2671 // Translate all 4 points
2672         if(gui->current_operation == CWINDOW_CROP && gui->crop_translate)
2673         {
2674                 x1 = cursor_x - gui->x_origin + gui->crop_origin_x1;
2675                 y1 = cursor_y - gui->y_origin + gui->crop_origin_y1;
2676                 x2 = cursor_x - gui->x_origin + gui->crop_origin_x2;
2677                 y2 = cursor_y - gui->y_origin + gui->crop_origin_y2;
2678
2679                 mwindow->edl->session->crop_x1 = (int)x1;
2680                 mwindow->edl->session->crop_y1 = (int)y1;
2681                 mwindow->edl->session->crop_x2 = (int)x2;
2682                 mwindow->edl->session->crop_y2 = (int)y2;
2683                 result = 1;
2684                 redraw = 1;
2685         }
2686         else
2687 // Update dragging
2688         if(gui->current_operation == CWINDOW_CROP)
2689         {
2690                 switch(gui->crop_handle)
2691                 {
2692                         case -1:
2693                                 x1 = gui->crop_origin_x;
2694                                 y1 = gui->crop_origin_y;
2695                                 x2 = gui->crop_origin_x;
2696                                 y2 = gui->crop_origin_y;
2697                                 if(cursor_x < gui->x_origin)
2698                                 {
2699                                         if(cursor_y < gui->y_origin)
2700                                         {
2701                                                 x1 = cursor_x;
2702                                                 y1 = cursor_y;
2703                                         }
2704                                         else
2705                                         if(cursor_y >= gui->y_origin)
2706                                         {
2707                                                 x1 = cursor_x;
2708                                                 y2 = cursor_y;
2709                                         }
2710                                 }
2711                                 else
2712                                 if(cursor_x  >= gui->x_origin)
2713                                 {
2714                                         if(cursor_y < gui->y_origin)
2715                                         {
2716                                                 y1 = cursor_y;
2717                                                 x2 = cursor_x;
2718                                         }
2719                                         else
2720                                         if(cursor_y >= gui->y_origin)
2721                                         {
2722                                                 x2 = cursor_x;
2723                                                 y2 = cursor_y;
2724                                         }
2725                                 }
2726
2727 // printf("test crop %d %d %d %d\n",
2728 //      mwindow->edl->session->crop_x1,
2729 //      mwindow->edl->session->crop_y1,
2730 //      mwindow->edl->session->crop_x2,
2731 //      mwindow->edl->session->crop_y2);
2732                                 break;
2733                         case 0:
2734                                 x1 = cursor_x - gui->x_origin + gui->crop_origin_x;
2735                                 y1 = cursor_y - gui->y_origin + gui->crop_origin_y;
2736                                 break;
2737                         case 1:
2738                                 x2 = cursor_x - gui->x_origin + gui->crop_origin_x;
2739                                 y1 = cursor_y - gui->y_origin + gui->crop_origin_y;
2740                                 break;
2741                         case 2:
2742                                 x1 = cursor_x - gui->x_origin + gui->crop_origin_x;
2743                                 y2 = cursor_y - gui->y_origin + gui->crop_origin_y;
2744                                 break;
2745                         case 3:
2746                                 x2 = cursor_x - gui->x_origin + gui->crop_origin_x;
2747                                 y2 = cursor_y - gui->y_origin + gui->crop_origin_y;
2748                                 break;
2749                 }
2750
2751                 if(!EQUIV(mwindow->edl->session->crop_x1, x1) ||
2752                         !EQUIV(mwindow->edl->session->crop_x2, x2) ||
2753                         !EQUIV(mwindow->edl->session->crop_y1, y1) ||
2754                         !EQUIV(mwindow->edl->session->crop_y2, y2))
2755                 {
2756                         if (x1 > x2)
2757                         {
2758                                 float tmp = x1;
2759                                 x1 = x2;
2760                                 x2 = tmp;
2761                                 switch (gui->crop_handle)
2762                                 {
2763                                         case 0: gui->crop_handle = 1; break;
2764                                         case 1: gui->crop_handle = 0; break;
2765                                         case 2: gui->crop_handle = 3; break;
2766                                         case 3: gui->crop_handle = 2; break;
2767                                         default: break;
2768                                 }
2769                         }
2770
2771                         if (y1 > y2)
2772                         {
2773                                 float tmp = y1;
2774                                 y1 = y2;
2775                                 y2 = tmp;
2776                                 switch (gui->crop_handle)
2777                                 {
2778                                         case 0: gui->crop_handle = 2; break;
2779                                         case 1: gui->crop_handle = 3; break;
2780                                         case 2: gui->crop_handle = 0; break;
2781                                         case 3: gui->crop_handle = 1; break;
2782                                         default: break;
2783                                 }
2784                         }
2785
2786                         mwindow->edl->session->crop_x1 = (int)x1;
2787                         mwindow->edl->session->crop_y1 = (int)y1;
2788                         mwindow->edl->session->crop_x2 = (int)x2;
2789                         mwindow->edl->session->crop_y2 = (int)y2;
2790                         result = 1;
2791                         redraw = 1;
2792                 }
2793         }
2794         else
2795 // Update cursor font
2796         if(handle_selected >= 0)
2797         {
2798                 switch(handle_selected)
2799                 {
2800                         case 0:
2801                                 set_cursor(UPLEFT_RESIZE);
2802                                 break;
2803                         case 1:
2804                                 set_cursor(UPRIGHT_RESIZE);
2805                                 break;
2806                         case 2:
2807                                 set_cursor(DOWNLEFT_RESIZE);
2808                                 break;
2809                         case 3:
2810                                 set_cursor(DOWNRIGHT_RESIZE);
2811                                 break;
2812                 }
2813                 result = 1;
2814         }
2815         else
2816         {
2817                 set_cursor(ARROW_CURSOR);
2818         }
2819 #define CLAMP(x, y, z) ((x) = ((x) < (y) ? (y) : ((x) > (z) ? (z) : (x))))
2820
2821         if(redraw)
2822         {
2823                 CLAMP(mwindow->edl->session->crop_x1, 0, mwindow->edl->session->output_w);
2824                 CLAMP(mwindow->edl->session->crop_x2, 0, mwindow->edl->session->output_w);
2825                 CLAMP(mwindow->edl->session->crop_y1, 0, mwindow->edl->session->output_h);
2826                 CLAMP(mwindow->edl->session->crop_y2, 0, mwindow->edl->session->output_h);
2827 // printf("CWindowCanvas::test_crop %d %d %d %d\n",
2828 //      mwindow->edl->session->crop_x2,
2829 //      mwindow->edl->session->crop_y2,
2830 //      mwindow->edl->calculate_output_w(0),
2831 //      mwindow->edl->calculate_output_h(0));
2832         }
2833         return result;
2834 }
2835
2836
2837 void CWindowCanvas::draw_crop()
2838 {
2839         get_canvas()->set_inverse();
2840         get_canvas()->set_color(WHITE);
2841
2842         float x1 = mwindow->edl->session->crop_x1;
2843         float y1 = mwindow->edl->session->crop_y1;
2844         float x2 = mwindow->edl->session->crop_x2;
2845         float y2 = mwindow->edl->session->crop_y2;
2846
2847         output_to_canvas(mwindow->edl, 0, x1, y1);
2848         output_to_canvas(mwindow->edl, 0, x2, y2);
2849
2850         if(x2 - x1 && y2 - y1)
2851                 get_canvas()->draw_rectangle((int)x1,
2852                         (int)y1,
2853                         (int)(x2 - x1),
2854                         (int)(y2 - y1));
2855
2856         draw_crophandle((int)x1, (int)y1);
2857         draw_crophandle((int)x2 - CROPHANDLE_W, (int)y1);
2858         draw_crophandle((int)x1, (int)y2 - CROPHANDLE_H);
2859         draw_crophandle((int)x2 - CROPHANDLE_W, (int)y2 - CROPHANDLE_H);
2860         get_canvas()->set_opaque();
2861 }
2862
2863
2864 void CWindowCanvas::draw_outlines(int do_camera)
2865 {
2866         Track *track = gui->cwindow->calculate_affected_track();
2867
2868         if(!track) return;
2869
2870         float proj_x, proj_y, proj_z;
2871         int64_t position = track->to_units(
2872                 mwindow->edl->local_session->get_selectionstart(1),
2873                 0);
2874         track->automation->get_projector(&proj_x, &proj_y, &proj_z,
2875                                 position, PLAY_FORWARD);
2876
2877         proj_x += mwindow->edl->session->output_w/2.;
2878         proj_y += mwindow->edl->session->output_h/2.;
2879         float proj_x1 = proj_x - track->track_w/2. * proj_z;
2880         float proj_y1 = proj_y - track->track_h/2. * proj_z;
2881         float proj_x2 = proj_x + track->track_w/2. * proj_z;
2882         float proj_y2 = proj_y + track->track_h/2. * proj_z;
2883         float x1 = proj_x1, x2 = proj_x2;
2884         float y1 = proj_y1, y2 = proj_y2;
2885         output_to_canvas(mwindow->edl, 0, x1, y1);
2886         output_to_canvas(mwindow->edl, 0, x2, y2);
2887
2888 #define DRAW_PROJECTION(offset) \
2889         get_canvas()->draw_rectangle(x1+offset, y1+offset, (x2-x1), (y2-y1)); \
2890         get_canvas()->draw_line(x1+offset, y1+offset, x2+offset, y2+offset); \
2891         get_canvas()->draw_line(x2+offset, y1+offset, x1+offset, y2+offset); \
2892
2893 // Drop shadow
2894         get_canvas()->set_color(BLACK);
2895         DRAW_PROJECTION(1);
2896         get_canvas()->set_color(do_camera ? GREEN : RED);
2897         DRAW_PROJECTION(0);
2898
2899         if( do_camera ) {
2900                 float cam_x, cam_y, cam_z;
2901                 track->automation->get_camera(&cam_x, &cam_y, &cam_z,
2902                                         position, PLAY_FORWARD);
2903                 cam_x += track->track_w / 2.;
2904                 cam_y += track->track_h / 2.;
2905 // follow image, not camera
2906                 cam_x = -cam_x;  cam_y = -cam_y;  cam_z *= proj_z;
2907                 float cam_x1 = cam_x * cam_z + proj_x;
2908                 float cam_y1 = cam_y * cam_z + proj_y;
2909                 float cam_x2 = (cam_x + track->track_w) * cam_z + proj_x;
2910                 float cam_y2 = (cam_y + track->track_h) * cam_z + proj_y;
2911                 output_to_canvas(mwindow->edl, 0, cam_x1, cam_y1);
2912                 output_to_canvas(mwindow->edl, 0, cam_x2, cam_y2);
2913                 get_canvas()->set_color(YELLOW);
2914                 get_canvas()->draw_rectangle(cam_x1, cam_y1, cam_x2-cam_x1, cam_y2-cam_y1);
2915         }
2916 }
2917
2918 int CWindowCanvas::test_bezier(int button_press,
2919         int &redraw,
2920         int &redraw_canvas,
2921         int &rerender,
2922         int do_camera)
2923 {
2924         int result = 0;
2925
2926 // Processing drag operation.
2927 // Create keyframe during first cursor motion.
2928         if( !button_press ) {
2929
2930                 float cursor_x = get_cursor_x();
2931                 float cursor_y = get_cursor_y();
2932                 canvas_to_output(mwindow->edl, 0, cursor_x, cursor_y);
2933
2934                 if( gui->current_operation == CWINDOW_CAMERA ||
2935                     gui->current_operation == CWINDOW_PROJECTOR ) {
2936                         if( !gui->ctrl_down() && gui->shift_down() && !gui->translating_zoom ) {
2937                                 gui->translating_zoom = 1;
2938                                 gui->reset_affected();
2939                         }
2940                         else if( !gui->ctrl_down() && !gui->shift_down() && gui->translating_zoom ) {
2941                                 gui->translating_zoom = 0;
2942                                 gui->reset_affected();
2943                         }
2944
2945 // Get target keyframe
2946                         if( !gui->affected_x && !gui->affected_y && !gui->affected_z ) {
2947                                 if(!gui->affected_track) return 0;
2948                                 FloatAutos *affected_x_autos, *affected_y_autos, *affected_z_autos;
2949                                 FloatAutos** autos = (FloatAutos**) gui->affected_track->automation->autos;
2950                                 if( mwindow->edl->session->cwindow_operation == CWINDOW_CAMERA ) {
2951                                         affected_x_autos = autos[AUTOMATION_CAMERA_X];
2952                                         affected_y_autos = autos[AUTOMATION_CAMERA_Y];
2953                                         affected_z_autos = autos[AUTOMATION_CAMERA_Z];
2954                                 }
2955                                 else {
2956                                         affected_x_autos = autos[AUTOMATION_PROJECTOR_X];
2957                                         affected_y_autos = autos[AUTOMATION_PROJECTOR_Y];
2958                                         affected_z_autos = autos[AUTOMATION_PROJECTOR_Z];
2959                                 }
2960                                 double position = mwindow->edl->local_session->get_selectionstart(1);
2961                                 int64_t track_position = gui->affected_track->to_units(position, 0);
2962                                 FloatAuto *prev_x = 0, *next_x = 0;
2963                                 float new_x = affected_x_autos->get_value(track_position, PLAY_FORWARD, prev_x, next_x);
2964                                 FloatAuto *prev_y = 0, *next_y = 0;
2965                                 float new_y = affected_y_autos->get_value(track_position, PLAY_FORWARD, prev_y, next_y);
2966                                 FloatAuto *prev_z = 0, *next_z = 0;
2967                                 float new_z = affected_z_autos->get_value(track_position, PLAY_FORWARD, prev_z, next_z);
2968                                 int zooming = gui->translating_zoom, created;
2969                                 gui->affected_x = (FloatAuto*)gui->cwindow->calculate_affected_auto(
2970                                                         affected_x_autos, !zooming, &created, 0);
2971                                 if( created ) {
2972                                         gui->affected_x->set_value(new_x);
2973                                         redraw_canvas = 1;
2974                                 }
2975                                 gui->affected_y = (FloatAuto*)gui->cwindow->calculate_affected_auto(
2976                                                         affected_y_autos, !zooming, &created, 0);
2977                                 if( created ) {
2978                                         gui->affected_y->set_value(new_y);
2979                                         redraw_canvas = 1;
2980                                 }
2981                                 gui->affected_z = (FloatAuto*)gui->cwindow->calculate_affected_auto(
2982                                                         affected_z_autos, zooming, &created, 0);
2983                                 if( created ) {
2984                                         gui->affected_z->set_value(new_z);
2985                                         redraw_canvas = 1;
2986                                 }
2987                                 calculate_origin();
2988
2989                                 if( gui->translating_zoom ) {
2990                                         gui->center_z = gui->affected_z->get_value();
2991                                 }
2992                                 else {
2993                                         gui->center_x = gui->affected_x->get_value();
2994                                         gui->center_y = gui->affected_y->get_value();
2995                                 }
2996
2997                                 rerender = 1;
2998                                 redraw = 1;
2999                         }
3000
3001                         float x_val = gui->affected_x->get_value();
3002                         float y_val = gui->affected_y->get_value();
3003                         float z_val = gui->affected_z->get_value();
3004
3005                         if( gui->translating_zoom ) {
3006                                 float z = gui->center_z + (cursor_y - gui->y_origin) / 128;
3007                                 if( z < 0 ) z = 0;
3008                                 if( !EQUIV(z_val, z) ) {
3009                                         rerender = 1;
3010                                         redraw = 1;
3011                                         redraw_canvas = 1;
3012                                 }
3013                                 gui->affected_z->set_value(z);
3014                         }
3015                         else {
3016                                 float dx = cursor_x - gui->x_origin;
3017                                 float dy = cursor_y - gui->y_origin;
3018 // follow image, not camera
3019                                 if( gui->current_operation == CWINDOW_CAMERA ) {
3020                                         dx = -dx / z_val;  dy = -dy / z_val;
3021                                 }
3022                                 float x = gui->center_x + dx;
3023                                 float y = gui->center_y + dy;
3024                                 gui->affected_x->set_value(x);
3025                                 gui->affected_y->set_value(y);
3026                                 if( !EQUIV(x_val, x) || !EQUIV(y_val, y) ) {
3027                                         rerender = 1;
3028                                         redraw = 1;
3029                                         redraw_canvas = 1;
3030                                 }
3031                         }
3032                 }
3033
3034                 result = 1;
3035         }
3036         else
3037 // Begin drag operation.  Don't create keyframe here.
3038         {
3039 // Get affected track off of the first recordable video track.
3040 // Calculating based on the alpha channel would require recording what layer
3041 // each output pixel belongs to as they're rendered and stacked.  Forget it.
3042                 gui->affected_track = gui->cwindow->calculate_affected_track();
3043                 gui->reset_affected();
3044
3045                 if(gui->affected_track)
3046                 {
3047                         if( do_camera )
3048                                 mwindow->undo->update_undo_before(_("camera"), this);
3049                         else
3050                                 mwindow->undo->update_undo_before(_("projector"), this);
3051
3052                         gui->current_operation =
3053                                 mwindow->edl->session->cwindow_operation;
3054                         gui->tool_panel->raise_window();
3055                         result = 1;
3056                 }
3057         }
3058
3059         return result;
3060 }
3061
3062
3063 int CWindowCanvas::test_zoom(int &redraw)
3064 {
3065         int result = 0;
3066         float x, y;
3067         float zoom = 0;
3068
3069         if( mwindow->edl->session->cwindow_scrollbars ) {
3070                 if( *gui->zoom_panel->get_text() != 'x' ) {
3071 // Find current zoom in table
3072                         int idx = total_zooms;  float old_zoom = get_zoom();
3073                         while( --idx >= 0 && !EQUIV(my_zoom_table[idx], old_zoom) );
3074                         if( idx >= 0 ) {
3075                                 idx += get_buttonpress() == 5 ||
3076                                          gui->ctrl_down() || gui->shift_down() ?  -1 : +1 ;
3077                                 CLAMP(idx, 0, total_zooms-1);
3078                                 zoom = my_zoom_table[idx];
3079                         }
3080                 }
3081                 x = get_cursor_x();  y = get_cursor_y();
3082                 if( !zoom ) {
3083                         mwindow->edl->session->cwindow_scrollbars = 0;
3084                         gui->zoom_panel->update(0);
3085                         zoom = gui->get_auto_zoom();
3086                 }
3087                 else {
3088                         gui->zoom_panel->ZoomPanel::update(zoom);
3089                         float output_x = x, output_y = y;
3090                         canvas_to_output(mwindow->edl, 0, output_x, output_y);
3091                         x = output_x - x / zoom;
3092                         y = output_y - y / zoom;
3093                 }
3094         }
3095         else {
3096                 mwindow->edl->session->cwindow_scrollbars = 1;
3097                 x = (mwindow->edl->session->output_w - w) / 2;
3098                 y = (mwindow->edl->session->output_h - h) / 2;
3099                 zoom = 1;
3100         }
3101         update_zoom((int)x, (int)y, zoom);
3102
3103         gui->composite_panel->cpanel_zoom->update(zoom);
3104
3105         reposition_window(mwindow->edl,
3106                         mwindow->theme->ccanvas_x, mwindow->theme->ccanvas_y,
3107                         mwindow->theme->ccanvas_w, mwindow->theme->ccanvas_h);
3108         redraw = 1;  result = 1;
3109
3110         return result;
3111 }
3112
3113
3114 void CWindowCanvas::calculate_origin()
3115 {
3116         gui->x_origin = get_cursor_x();
3117         gui->y_origin = get_cursor_y();
3118 //printf("CWindowCanvas::calculate_origin 1 %f %f\n", gui->x_origin, gui->y_origin);
3119         canvas_to_output(mwindow->edl, 0, gui->x_origin, gui->y_origin);
3120 //printf("CWindowCanvas::calculate_origin 2 %f %f\n", gui->x_origin, gui->y_origin);
3121 }
3122
3123
3124 int CWindowCanvas::cursor_leave_event()
3125 {
3126         set_cursor(ARROW_CURSOR);
3127         return 1;
3128 }
3129
3130 int CWindowCanvas::cursor_enter_event()
3131 {
3132         int redraw = 0;
3133         switch(mwindow->edl->session->cwindow_operation)
3134         {
3135                 case CWINDOW_CAMERA:
3136                 case CWINDOW_PROJECTOR:
3137                         set_cursor(MOVE_CURSOR);
3138                         break;
3139                 case CWINDOW_ZOOM:
3140                         set_cursor(MOVE_CURSOR);
3141                         break;
3142                 case CWINDOW_CROP:
3143                         test_crop(0, redraw);
3144                         break;
3145                 case CWINDOW_PROTECT:
3146                         set_cursor(ARROW_CURSOR);
3147                         break;
3148                 case CWINDOW_MASK:
3149                 case CWINDOW_RULER:
3150                         set_cursor(CROSS_CURSOR);
3151                         break;
3152                 case CWINDOW_EYEDROP:
3153                         set_cursor(CROSS_CURSOR);
3154                         break;
3155         }
3156         return 1;
3157 }
3158
3159 int CWindowCanvas::cursor_motion_event()
3160 {
3161         int redraw = 0, result = 0, rerender = 0, redraw_canvas = 0;
3162
3163
3164 //printf("CWindowCanvas::cursor_motion_event %d current_operation=%d\n", __LINE__, gui->current_operation);
3165         switch(gui->current_operation)
3166         {
3167                 case CWINDOW_SCROLL:
3168                 {
3169                         float zoom = get_zoom();
3170                         float cursor_x = get_cursor_x();
3171                         float cursor_y = get_cursor_y();
3172
3173                         float zoom_x, zoom_y, conformed_w, conformed_h;
3174                         get_zooms(mwindow->edl, 0, zoom_x, zoom_y, conformed_w, conformed_h);
3175                         cursor_x = (float)cursor_x / zoom_x + gui->x_offset;
3176                         cursor_y = (float)cursor_y / zoom_y + gui->y_offset;
3177
3178
3179
3180                         int x = (int)(gui->x_origin - cursor_x + gui->x_offset);
3181                         int y = (int)(gui->y_origin - cursor_y + gui->y_offset);
3182
3183                         update_zoom(x,
3184                                 y,
3185                                 zoom);
3186                         update_scrollbars(0);
3187                         redraw = 1;
3188                         result = 1;
3189                         break;
3190                 }
3191
3192                 case CWINDOW_RULER:
3193                         result = do_ruler(0, 1, 0, 0);
3194                         break;
3195
3196                 case CWINDOW_CAMERA:
3197                         result = test_bezier(0, redraw, redraw_canvas, rerender, 1);
3198                         break;
3199
3200                 case CWINDOW_PROJECTOR:
3201                         result = test_bezier(0, redraw, redraw_canvas, rerender, 0);
3202                         break;
3203
3204
3205                 case CWINDOW_CROP:
3206                         result = test_crop(0, redraw);
3207 // printf("CWindowCanvas::cursor_motion_event %d result=%d redraw=%d\n",
3208 // __LINE__,
3209 // result,
3210 // redraw);
3211                         break;
3212
3213                 case CWINDOW_MASK:
3214                 case CWINDOW_MASK_CONTROL_IN:
3215                 case CWINDOW_MASK_CONTROL_OUT:
3216                 case CWINDOW_MASK_TRANSLATE:
3217
3218                         result = do_mask(redraw,
3219                                 rerender,
3220                                 0,
3221                                 1,
3222                                 0);
3223                         break;
3224
3225                 case CWINDOW_EYEDROP:
3226                         result = do_eyedrop(rerender, 0, 0);
3227                         break;
3228
3229                 default:
3230                         break;
3231
3232         }
3233
3234
3235 // cursor font changes
3236         if(!result)
3237         {
3238 // printf("CWindowCanvas::cursor_motion_event %d cwindow_operation=%d\n",
3239 // __LINE__,
3240 // mwindow->edl->session->cwindow_operation);
3241                 switch(mwindow->edl->session->cwindow_operation)
3242                 {
3243                         case CWINDOW_CROP:
3244                                 result = test_crop(0, redraw);
3245                                 break;
3246                         case CWINDOW_RULER:
3247                                 result = do_ruler(0, 1, 0, 0);
3248                                 break;
3249                         case CWINDOW_MASK:
3250                                 result = do_mask(redraw,
3251                                         rerender,
3252                                         0,
3253                                         1,
3254                                         0);
3255                                         break;
3256                 }
3257         }
3258
3259         int change_type = rerender ? CHANGE_PARAMS : -1;
3260         gui->sync_parameters(change_type, redraw, redraw_canvas);
3261
3262         return result;
3263 }
3264
3265 int CWindowCanvas::button_press_event()
3266 {
3267         int result = 0;
3268         int redraw = 0;
3269         int redraw_canvas = 0;
3270         int rerender = 0;
3271
3272         if(Canvas::button_press_event()) return 1;
3273
3274         gui->translating_zoom = gui->shift_down();
3275
3276         calculate_origin();
3277 //printf("CWindowCanvas::button_press_event 2 %f %f\n", gui->x_origin, gui->y_origin, gui->x_origin, gui->y_origin);
3278
3279         float zoom_x, zoom_y, conformed_w, conformed_h;
3280         get_zooms(mwindow->edl, 0, zoom_x, zoom_y, conformed_w, conformed_h);
3281         gui->x_offset = get_x_offset(mwindow->edl, 0, zoom_x, conformed_w, conformed_h);
3282         gui->y_offset = get_y_offset(mwindow->edl, 0, zoom_y, conformed_w, conformed_h);
3283
3284 // Scroll view
3285         if( mwindow->edl->session->cwindow_operation != CWINDOW_PROTECT &&
3286             get_buttonpress() == 2 )
3287         {
3288                 gui->current_operation = CWINDOW_SCROLL;
3289                 result = 1;
3290         }
3291         else
3292 // Adjust parameter
3293         {
3294                 switch(mwindow->edl->session->cwindow_operation)
3295                 {
3296                         case CWINDOW_RULER:
3297                                 result = do_ruler(0, 0, 1, 0);
3298                                 break;
3299
3300                         case CWINDOW_CAMERA:
3301                                 result = test_bezier(1, redraw, redraw_canvas, rerender, 1);
3302                                 break;
3303
3304                         case CWINDOW_PROJECTOR:
3305                                 result = test_bezier(1, redraw, redraw_canvas, rerender, 0);
3306                                 break;
3307
3308                         case CWINDOW_ZOOM:
3309                                 result = test_zoom(redraw);
3310                                 break;
3311
3312                         case CWINDOW_CROP:
3313                                 result = test_crop(1, redraw);
3314                                 break;
3315
3316                         case CWINDOW_MASK:
3317                                 switch( get_buttonpress() ) {
3318                                 case LEFT_BUTTON:
3319                                         result = do_mask(redraw, rerender, 1, 0, 0);
3320                                         break;
3321                                 case WHEEL_UP:
3322                                 case WHEEL_DOWN:
3323                                         result = do_mask(redraw, rerender, 1, 1, 0);
3324                                         break;
3325                                 }
3326                                 if( result ) redraw_canvas = 1;
3327                                 break;
3328
3329                         case CWINDOW_EYEDROP:
3330                                 result = do_eyedrop(rerender, 1, 0);
3331                                 break;
3332                 }
3333         }
3334
3335         int change_type = rerender ? CHANGE_PARAMS : -1;
3336         gui->sync_parameters(change_type, redraw, redraw_canvas);
3337
3338         return result;
3339 }
3340
3341 int CWindowCanvas::button_release_event()
3342 {
3343         int result = 0;
3344         const char *undo_label = 0;
3345
3346         switch(gui->current_operation)
3347         {
3348                 case CWINDOW_SCROLL:
3349                         result = 1;
3350                         break;
3351
3352                 case CWINDOW_RULER:
3353                         do_ruler(0, 0, 0, 1);
3354                         break;
3355
3356                 case CWINDOW_CAMERA:
3357                         undo_label = _("camera");
3358                         break;
3359
3360                 case CWINDOW_PROJECTOR:
3361                         undo_label = _("projector");
3362                         break;
3363
3364                 case CWINDOW_MASK:
3365                 case CWINDOW_MASK_CONTROL_IN:
3366                 case CWINDOW_MASK_CONTROL_OUT:
3367                 case CWINDOW_MASK_TRANSLATE:
3368 // Finish mask operation
3369                         gui->mask_keyframe = 0;
3370                         undo_label = _("mask");
3371                         break;
3372                 case CWINDOW_MASK_ROTATE:
3373                         gui->mask_keyframe = 0;
3374                         undo_label = _("mask rotate");
3375                         break;
3376                 case CWINDOW_MASK_SCALE:
3377                         gui->mask_keyframe = 0;
3378                         undo_label = _("mask scale");
3379                         break;
3380                 case CWINDOW_NONE:
3381                         result = Canvas::button_release_event();
3382                         break;
3383         }
3384
3385         if( undo_label )
3386                 mwindow->undo->update_undo_after(undo_label, LOAD_AUTOMATION);
3387         gui->current_operation = CWINDOW_NONE;
3388         return result;
3389 }
3390
3391 void CWindowCanvas::zoom_resize_window(float percentage)
3392 {
3393         int canvas_w, canvas_h;
3394         int new_w, new_h;
3395
3396
3397 // Get required canvas size
3398         calculate_sizes(mwindow->edl->get_aspect_ratio(),
3399                 mwindow->edl->session->output_w,
3400                 mwindow->edl->session->output_h,
3401                 percentage,
3402                 canvas_w,
3403                 canvas_h);
3404
3405 // Estimate window size from current borders
3406         new_w = canvas_w + (gui->get_w() - mwindow->theme->ccanvas_w);
3407         new_h = canvas_h + (gui->get_h() - mwindow->theme->ccanvas_h);
3408
3409 //printf("CWindowCanvas::zoom_resize_window %d %d %d\n", __LINE__, new_w, new_h);
3410         mwindow->session->cwindow_w = new_w;
3411         mwindow->session->cwindow_h = new_h;
3412
3413         mwindow->theme->get_cwindow_sizes(gui,
3414                 mwindow->session->cwindow_controls);
3415
3416 // Estimate again from new borders
3417         new_w = canvas_w + (mwindow->session->cwindow_w - mwindow->theme->ccanvas_w);
3418         new_h = canvas_h + (mwindow->session->cwindow_h - mwindow->theme->ccanvas_h);
3419 //printf("CWindowCanvas::zoom_resize_window %d %d %d\n", __LINE__, new_w, new_h);
3420
3421         gui->resize_window(new_w, new_h);
3422         gui->resize_event(new_w, new_h);
3423 }
3424
3425 void CWindowCanvas::toggle_controls()
3426 {
3427         mwindow->session->cwindow_controls = !mwindow->session->cwindow_controls;
3428         gui->resize_event(gui->get_w(), gui->get_h());
3429 }
3430
3431 int CWindowCanvas::get_cwindow_controls()
3432 {
3433         return mwindow->session->cwindow_controls;
3434 }
3435
3436
3437