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( refresh_frame && refresh_frame->get_w()>0 && refresh_frame->get_h()>0 ) {
1133                         float in_x1, in_y1, in_x2, in_y2;
1134                         float out_x1, out_y1, out_x2, out_y2;
1135                         get_transfers(mwindow->edl,
1136                                 in_x1, in_y1, in_x2, in_y2,
1137                                 out_x1, out_y1, out_x2, out_y2);
1138
1139
1140 //printf("CWindowCanvas::draw_refresh %.2f %.2f %.2f %.2f -> %.2f %.2f %.2f %.2f\n",
1141 //in_x1, in_y1, in_x2, in_y2, out_x1, out_y1, out_x2, out_y2);
1142
1143
1144                         if( out_x2 > out_x1 && out_y2 > out_y1 &&
1145                             in_x2 > in_x1 && in_y2 > in_y1 ) {
1146 // input scaled from session to refresh frame coordinates
1147                                 int ow = get_output_w(mwindow->edl);
1148                                 int oh = get_output_h(mwindow->edl);
1149                                 int rw = refresh_frame->get_w();
1150                                 int rh = refresh_frame->get_h();
1151                                 float xs = (float)rw / ow;
1152                                 float ys = (float)rh / oh;
1153                                 in_x1 *= xs;  in_x2 *= xs;
1154                                 in_y1 *= ys;  in_y2 *= ys;
1155 // Can't use OpenGL here because it is called asynchronously of the
1156 // playback operation.
1157                                 window->draw_vframe(refresh_frame,
1158                                                 (int)out_x1, (int)out_y1,
1159                                                 (int)(out_x2 - out_x1),
1160                                                 (int)(out_y2 - out_y1),
1161                                                 (int)in_x1, (int)in_y1,
1162                                                 (int)(in_x2 - in_x1),
1163                                                 (int)(in_y2 - in_y1),
1164                                                 0);
1165                         }
1166                 }
1167 //usleep(10000);
1168                 draw_overlays();
1169                 window->flash(flush);
1170         }
1171 //printf("CWindowCanvas::draw_refresh 10\n");
1172 }
1173
1174 #define CROPHANDLE_W 10
1175 #define CROPHANDLE_H 10
1176
1177 void CWindowCanvas::draw_crophandle(int x, int y)
1178 {
1179         get_canvas()->draw_box(x, y, CROPHANDLE_W, CROPHANDLE_H);
1180 }
1181
1182
1183 #define CONTROL_W 10
1184 #define CONTROL_H 10
1185 #define FIRST_CONTROL_W 20
1186 #define FIRST_CONTROL_H 20
1187 #undef BC_INFINITY
1188 #define BC_INFINITY 65536
1189
1190 #define RULERHANDLE_W 16
1191 #define RULERHANDLE_H 16
1192
1193 int CWindowCanvas::do_ruler(int draw,
1194         int motion,
1195         int button_press,
1196         int button_release)
1197 {
1198         int result = 0;
1199         float x1 = mwindow->edl->session->ruler_x1;
1200         float y1 = mwindow->edl->session->ruler_y1;
1201         float x2 = mwindow->edl->session->ruler_x2;
1202         float y2 = mwindow->edl->session->ruler_y2;
1203         float canvas_x1 = x1;
1204         float canvas_y1 = y1;
1205         float canvas_x2 = x2;
1206         float canvas_y2 = y2;
1207         float output_x = get_cursor_x();
1208         float output_y = get_cursor_y();
1209         float canvas_cursor_x = output_x;
1210         float canvas_cursor_y = output_y;
1211
1212         canvas_to_output(mwindow->edl, 0, output_x, output_y);
1213         output_to_canvas(mwindow->edl, 0, canvas_x1, canvas_y1);
1214         output_to_canvas(mwindow->edl, 0, canvas_x2, canvas_y2);
1215         mwindow->session->cwindow_output_x = roundf(output_x);
1216         mwindow->session->cwindow_output_y = roundf(output_y);
1217
1218         if(button_press && get_buttonpress() == 1)
1219         {
1220                 gui->ruler_handle = -1;
1221                 gui->ruler_translate = 0;
1222                 if(gui->alt_down())
1223                 {
1224                         gui->ruler_translate = 1;
1225                         gui->ruler_origin_x = x1;
1226                         gui->ruler_origin_y = y1;
1227                 }
1228                 else
1229                 if(canvas_cursor_x >= canvas_x1 - RULERHANDLE_W / 2 &&
1230                         canvas_cursor_x < canvas_x1 + RULERHANDLE_W / 2 &&
1231                         canvas_cursor_y >= canvas_y1 - RULERHANDLE_W &&
1232                         canvas_cursor_y < canvas_y1 + RULERHANDLE_H / 2)
1233                 {
1234                         gui->ruler_handle = 0;
1235                         gui->ruler_origin_x = x1;
1236                         gui->ruler_origin_y = y1;
1237                 }
1238                 else
1239                 if(canvas_cursor_x >= canvas_x2 - RULERHANDLE_W / 2 &&
1240                         canvas_cursor_x < canvas_x2 + RULERHANDLE_W / 2 &&
1241                         canvas_cursor_y >= canvas_y2 - RULERHANDLE_W &&
1242                         canvas_cursor_y < canvas_y2 + RULERHANDLE_H / 2)
1243                 {
1244                         gui->ruler_handle = 1;
1245                         gui->ruler_origin_x = x2;
1246                         gui->ruler_origin_y = y2;
1247                 }
1248
1249
1250 // Start new selection
1251                 if(!gui->ruler_translate &&
1252                         (gui->ruler_handle < 0 ||
1253                         (EQUIV(x2, x1) &&
1254                         EQUIV(y2, y1))))
1255                 {
1256 // Hide previous
1257                         do_ruler(1, 0, 0, 0);
1258                         get_canvas()->flash();
1259                         gui->ruler_handle = 1;
1260                         mwindow->edl->session->ruler_x1 = output_x;
1261                         mwindow->edl->session->ruler_y1 = output_y;
1262                         mwindow->edl->session->ruler_x2 = output_x;
1263                         mwindow->edl->session->ruler_y2 = output_y;
1264                         gui->ruler_origin_x = mwindow->edl->session->ruler_x2;
1265                         gui->ruler_origin_y = mwindow->edl->session->ruler_y2;
1266                 }
1267
1268                 gui->x_origin = output_x;
1269                 gui->y_origin = output_y;
1270                 gui->current_operation = CWINDOW_RULER;
1271                 gui->tool_panel->raise_window();
1272                 result = 1;
1273         }
1274
1275         if(motion)
1276         {
1277                 if(gui->current_operation == CWINDOW_RULER)
1278                 {
1279                         if(gui->ruler_translate)
1280                         {
1281 // Hide ruler
1282                                 do_ruler(1, 0, 0, 0);
1283                                 float x_difference = mwindow->edl->session->ruler_x1;
1284                                 float y_difference = mwindow->edl->session->ruler_y1;
1285                                 mwindow->edl->session->ruler_x1 = output_x - gui->x_origin + gui->ruler_origin_x;
1286                                 mwindow->edl->session->ruler_y1 = output_y - gui->y_origin + gui->ruler_origin_y;
1287                                 x_difference -= mwindow->edl->session->ruler_x1;
1288                                 y_difference -= mwindow->edl->session->ruler_y1;
1289                                 mwindow->edl->session->ruler_x2 -= x_difference;
1290                                 mwindow->edl->session->ruler_y2 -= y_difference;
1291 // Show ruler
1292                                 do_ruler(1, 0, 0, 0);
1293                                 get_canvas()->flash();
1294                                 gui->update_tool();
1295                         }
1296                         else
1297                         switch(gui->ruler_handle)
1298                         {
1299                                 case 0:
1300                                         do_ruler(1, 0, 0, 0);
1301                                         mwindow->edl->session->ruler_x1 = output_x - gui->x_origin + gui->ruler_origin_x;
1302                                         mwindow->edl->session->ruler_y1 = output_y - gui->y_origin + gui->ruler_origin_y;
1303                                         if(gui->alt_down() || gui->ctrl_down())
1304                                         {
1305                                                 double angle_value = fabs(atan((mwindow->edl->session->ruler_y2 - mwindow->edl->session->ruler_y1) /
1306                                                         (mwindow->edl->session->ruler_x2 - mwindow->edl->session->ruler_x1)) *
1307                                                         360 /
1308                                                         2 /
1309                                                         M_PI);
1310                                                 double distance_value =
1311                                                         sqrt(SQR(mwindow->edl->session->ruler_x2 - mwindow->edl->session->ruler_x1) +
1312                                                         SQR(mwindow->edl->session->ruler_y2 - mwindow->edl->session->ruler_y1));
1313                                                 if(angle_value < 22)
1314                                                         mwindow->edl->session->ruler_y1 = mwindow->edl->session->ruler_y2;
1315                                                 else
1316                                                 if(angle_value > 67)
1317                                                         mwindow->edl->session->ruler_x1 = mwindow->edl->session->ruler_x2;
1318                                                 else
1319                                                 if(mwindow->edl->session->ruler_x1 < mwindow->edl->session->ruler_x2 &&
1320                                                         mwindow->edl->session->ruler_y1 < mwindow->edl->session->ruler_y2)
1321                                                 {
1322                                                         mwindow->edl->session->ruler_x1 = mwindow->edl->session->ruler_x2 - distance_value / 1.414214;
1323                                                         mwindow->edl->session->ruler_y1 = mwindow->edl->session->ruler_y2 - distance_value / 1.414214;
1324                                                 }
1325                                                 else
1326                                                 if(mwindow->edl->session->ruler_x1 < mwindow->edl->session->ruler_x2 && mwindow->edl->session->ruler_y1 > mwindow->edl->session->ruler_y2)
1327                                                 {
1328                                                         mwindow->edl->session->ruler_x1 = mwindow->edl->session->ruler_x2 - distance_value / 1.414214;
1329                                                         mwindow->edl->session->ruler_y1 = mwindow->edl->session->ruler_y2 + distance_value / 1.414214;
1330                                                 }
1331                                                 else
1332                                                 if(mwindow->edl->session->ruler_x1 > mwindow->edl->session->ruler_x2 &&
1333                                                         mwindow->edl->session->ruler_y1 < mwindow->edl->session->ruler_y2)
1334                                                 {
1335                                                         mwindow->edl->session->ruler_x1 = mwindow->edl->session->ruler_x2 + distance_value / 1.414214;
1336                                                         mwindow->edl->session->ruler_y1 = mwindow->edl->session->ruler_y2 - distance_value / 1.414214;
1337                                                 }
1338                                                 else
1339                                                 {
1340                                                         mwindow->edl->session->ruler_x1 = mwindow->edl->session->ruler_x2 + distance_value / 1.414214;
1341                                                         mwindow->edl->session->ruler_y1 = mwindow->edl->session->ruler_y2 + distance_value / 1.414214;
1342                                                 }
1343                                         }
1344                                         do_ruler(1, 0, 0, 0);
1345                                         get_canvas()->flash();
1346                                         gui->update_tool();
1347                                         break;
1348
1349                                 case 1:
1350                                         do_ruler(1, 0, 0, 0);
1351                                         mwindow->edl->session->ruler_x2 = output_x - gui->x_origin + gui->ruler_origin_x;
1352                                         mwindow->edl->session->ruler_y2 = output_y - gui->y_origin + gui->ruler_origin_y;
1353                                         if(gui->alt_down() || gui->ctrl_down())
1354                                         {
1355                                                 double angle_value = fabs(atan((mwindow->edl->session->ruler_y2 - mwindow->edl->session->ruler_y1) /
1356                                                         (mwindow->edl->session->ruler_x2 - mwindow->edl->session->ruler_x1)) *
1357                                                         360 /
1358                                                         2 /
1359                                                         M_PI);
1360                                                 double distance_value =
1361                                                         sqrt(SQR(mwindow->edl->session->ruler_x2 - mwindow->edl->session->ruler_x1) +
1362                                                         SQR(mwindow->edl->session->ruler_y2 - mwindow->edl->session->ruler_y1));
1363                                                 if(angle_value < 22)
1364                                                         mwindow->edl->session->ruler_y2 = mwindow->edl->session->ruler_y1;
1365                                                 else
1366                                                 if(angle_value > 67)
1367                                                         mwindow->edl->session->ruler_x2 = mwindow->edl->session->ruler_x1;
1368                                                 else
1369                                                 if(mwindow->edl->session->ruler_x2 < mwindow->edl->session->ruler_x1 &&
1370                                                         mwindow->edl->session->ruler_y2 < mwindow->edl->session->ruler_y1)
1371                                                 {
1372                                                         mwindow->edl->session->ruler_x2 = mwindow->edl->session->ruler_x1 - distance_value / 1.414214;
1373                                                         mwindow->edl->session->ruler_y2 = mwindow->edl->session->ruler_y1 - distance_value / 1.414214;
1374                                                 }
1375                                                 else
1376                                                 if(mwindow->edl->session->ruler_x2 < mwindow->edl->session->ruler_x1 &&
1377                                                         mwindow->edl->session->ruler_y2 > mwindow->edl->session->ruler_y1)
1378                                                 {
1379                                                         mwindow->edl->session->ruler_x2 = mwindow->edl->session->ruler_x1 - distance_value / 1.414214;
1380                                                         mwindow->edl->session->ruler_y2 = mwindow->edl->session->ruler_y1 + distance_value / 1.414214;
1381                                                 }
1382                                                 else
1383                                                 if(mwindow->edl->session->ruler_x2 > mwindow->edl->session->ruler_x1 && mwindow->edl->session->ruler_y2 < mwindow->edl->session->ruler_y1)
1384                                                 {
1385                                                         mwindow->edl->session->ruler_x2 = mwindow->edl->session->ruler_x1 + distance_value / 1.414214;
1386                                                         mwindow->edl->session->ruler_y2 = mwindow->edl->session->ruler_y1 - distance_value / 1.414214;
1387                                                 }
1388                                                 else
1389                                                 {
1390                                                         mwindow->edl->session->ruler_x2 = mwindow->edl->session->ruler_x1 + distance_value / 1.414214;
1391                                                         mwindow->edl->session->ruler_y2 = mwindow->edl->session->ruler_y1 + distance_value / 1.414214;
1392                                                 }
1393                                         }
1394                                         do_ruler(1, 0, 0, 0);
1395                                         get_canvas()->flash();
1396                                         gui->update_tool();
1397                                         break;
1398                         }
1399 //printf("CWindowCanvas::do_ruler 2 %f %f %f %f\n", gui->ruler_x1, gui->ruler_y1, gui->ruler_x2, gui->ruler_y2);
1400                 }
1401                 else
1402                 {
1403 // printf("CWindowCanvas::do_ruler 2 %f %f %f %f\n",
1404 // canvas_cursor_x,
1405 // canvas_cursor_y,
1406 // canvas_x1,
1407 // canvas_y1);
1408                         if(canvas_cursor_x >= canvas_x1 - RULERHANDLE_W / 2 &&
1409                                 canvas_cursor_x < canvas_x1 + RULERHANDLE_W / 2 &&
1410                                 canvas_cursor_y >= canvas_y1 - RULERHANDLE_W &&
1411                                 canvas_cursor_y < canvas_y1 + RULERHANDLE_H / 2)
1412                         {
1413                                 set_cursor(UPRIGHT_ARROW_CURSOR);
1414                         }
1415                         else
1416                         if(canvas_cursor_x >= canvas_x2 - RULERHANDLE_W / 2 &&
1417                                 canvas_cursor_x < canvas_x2 + RULERHANDLE_W / 2 &&
1418                                 canvas_cursor_y >= canvas_y2 - RULERHANDLE_W &&
1419                                 canvas_cursor_y < canvas_y2 + RULERHANDLE_H / 2)
1420                         {
1421                                 set_cursor(UPRIGHT_ARROW_CURSOR);
1422                         }
1423                         else
1424                                 set_cursor(CROSS_CURSOR);
1425
1426 // Update current position
1427                         gui->update_tool();
1428                 }
1429         }
1430
1431 // Assume no ruler measurement if 0 length
1432         if(draw && (!EQUIV(x2, x1) || !EQUIV(y2, y1)))
1433         {
1434                 get_canvas()->set_inverse();
1435                 get_canvas()->set_color(WHITE);
1436                 get_canvas()->draw_line((int)canvas_x1,
1437                         (int)canvas_y1,
1438                         (int)canvas_x2,
1439                         (int)canvas_y2);
1440                 get_canvas()->draw_line(roundf(canvas_x1) - RULERHANDLE_W / 2,
1441                         roundf(canvas_y1),
1442                         roundf(canvas_x1) + RULERHANDLE_W / 2,
1443                         roundf(canvas_y1));
1444                 get_canvas()->draw_line(roundf(canvas_x1),
1445                         roundf(canvas_y1) - RULERHANDLE_H / 2,
1446                         roundf(canvas_x1),
1447                         roundf(canvas_y1) + RULERHANDLE_H / 2);
1448                 get_canvas()->draw_line(roundf(canvas_x2) - RULERHANDLE_W / 2,
1449                         roundf(canvas_y2),
1450                         roundf(canvas_x2) + RULERHANDLE_W / 2,
1451                         roundf(canvas_y2));
1452                 get_canvas()->draw_line(roundf(canvas_x2),
1453                         roundf(canvas_y2) - RULERHANDLE_H / 2,
1454                         roundf(canvas_x2),
1455                         roundf(canvas_y2) + RULERHANDLE_H / 2);
1456                 get_canvas()->set_opaque();
1457         }
1458
1459         return result;
1460 }
1461
1462
1463 static inline double line_dist(float cx,float cy, float tx,float ty)
1464 {
1465         double dx = tx-cx, dy = ty-cy;
1466         return sqrt(dx*dx + dy*dy);
1467 }
1468
1469 static inline bool test_bbox(int cx, int cy, int tx, int ty)
1470 {
1471 //      printf("test_bbox %d,%d - %d,%d = %f\n",cx,cy,tx,ty,line_dist(cx,cy,tx,ty));
1472         return (llabs(cx-tx) < CONTROL_W/2 && llabs(cy-ty) < CONTROL_H/2);
1473 }
1474
1475
1476 int CWindowCanvas::do_mask(int &redraw, int &rerender,
1477                 int button_press, int cursor_motion, int draw)
1478 {
1479 // Retrieve points from top recordable track
1480 //printf("CWindowCanvas::do_mask 1\n");
1481         Track *track = gui->cwindow->calculate_affected_track();
1482 //printf("CWindowCanvas::do_mask 2\n");
1483
1484         if(!track) return 0;
1485 //printf("CWindowCanvas::do_mask 3\n");
1486         CWindowMaskGUI *mask_gui = (CWindowMaskGUI *)
1487                 (gui->tool_panel ? gui->tool_panel->tool_gui : 0);
1488         int draw_markers = mask_gui ? mask_gui->markers : 0;
1489         int draw_boundary = mask_gui ? mask_gui->boundary : 0;
1490         MaskAutos *mask_autos = (MaskAutos*)track->automation->autos[AUTOMATION_MASK];
1491         int64_t position = track->to_units(
1492                 mwindow->edl->local_session->get_selectionstart(1),
1493                 0);
1494         Auto *prev_auto = 0;
1495         mask_autos->get_prev_auto(position, PLAY_FORWARD, (Auto *&)prev_auto, 1);
1496         MaskAuto *prev_mask = (MaskAuto *)prev_auto;
1497         ArrayList<MaskPoint*> points;
1498
1499 // Determine the points based on whether
1500 // new keyframes will be generated or drawing is performed.
1501 // If keyframe generation occurs, use the interpolated mask.
1502 // If no keyframe generation occurs, use the previous mask.
1503         int use_interpolated = 0;
1504         if( button_press || cursor_motion ) {
1505 #ifdef USE_KEYFRAME_SPANNING
1506                 double selection_start = mwindow->edl->local_session->get_selectionstart(0);
1507                 double selection_end = mwindow->edl->local_session->get_selectionend(0);
1508                 int64_t start_pos = track->to_units(selection_start, 0);
1509                 int64_t end_pos = track->to_units(selection_end, 0);
1510                 Auto *first = 0, *last = 0;
1511                 mask_autos->get_prev_auto(start_pos, PLAY_FORWARD, first, 1);
1512                 mask_autos->get_prev_auto(end_pos, PLAY_FORWARD, last, 1);
1513                 if( last == first && (!mwindow->edl->session->auto_keyframes) )
1514                         use_interpolated = 0;
1515                 else
1516 // If keyframe spanning occurs, use the interpolated points.
1517 // If new keyframe is generated, use the interpolated points.
1518                         use_interpolated = 1;
1519
1520 #else
1521                 if( mwindow->edl->session->auto_keyframes )
1522                         use_interpolated = 1;
1523 #endif
1524         }
1525         else
1526                 use_interpolated = 1;
1527
1528         if( use_interpolated ) {
1529 // Interpolate the points to get exactly what is being rendered at this position.
1530                 mask_autos->get_points(&points,
1531                         mwindow->edl->session->cwindow_mask,
1532                         position, PLAY_FORWARD);
1533         }
1534         else {
1535 // Use the prev mask
1536                 prev_mask->get_points(&points,
1537                         mwindow->edl->session->cwindow_mask);
1538         }
1539
1540 // Projector zooms relative to the center of the track output.
1541         float half_track_w = (float)track->track_w / 2;
1542         float half_track_h = (float)track->track_h / 2;
1543 // Translate mask to projection
1544         float projector_x, projector_y, projector_z;
1545         track->automation->get_projector(
1546                 &projector_x, &projector_y, &projector_z,
1547                 position, PLAY_FORWARD);
1548
1549
1550 // Get position of cursor relative to mask
1551         float cursor_x = get_cursor_x(), cursor_y = get_cursor_y();
1552         float mask_cursor_x = cursor_x, mask_cursor_y = cursor_y;
1553         canvas_to_output(mwindow->edl, 0, mask_cursor_x, mask_cursor_y);
1554
1555         projector_x += mwindow->edl->session->output_w / 2;
1556         projector_y += mwindow->edl->session->output_h / 2;
1557         mask_cursor_x = (mask_cursor_x - projector_x) / projector_z + half_track_w;
1558         mask_cursor_y = (mask_cursor_y - projector_y) / projector_z + half_track_h;
1559
1560 // Fix cursor origin
1561         if(button_press) {
1562                 gui->x_origin = mask_cursor_x;
1563                 gui->y_origin = mask_cursor_y;
1564         }
1565
1566         int result = 0;
1567 // Points of closest line
1568         int shortest_point1 = -1;
1569         int shortest_point2 = -1;
1570 // Closest point
1571         int shortest_point = -1;
1572 // Distance to closest line
1573         float shortest_line_distance = BC_INFINITY;
1574 // Distance to closest point
1575         float shortest_point_distance = BC_INFINITY;
1576         int selected_point = -1;
1577         int selected_control_point = -1;
1578         float selected_control_point_distance = BC_INFINITY;
1579         ArrayList<int> x_points;
1580         ArrayList<int> y_points;
1581
1582         if(!cursor_motion) {
1583                 if(draw) {
1584                         get_canvas()->set_color(WHITE);
1585                         get_canvas()->set_inverse();
1586                 }
1587 //printf("CWindowCanvas::do_mask 1 %d\n", points.size());
1588
1589 // Never draw closed polygon and a closed
1590 // polygon is harder to add points to.
1591                 for(int i = 0; i < points.size() && !result; i++) {
1592                         MaskPoint *point1 = points.get(i);
1593                         MaskPoint *point2 = (i >= points.size() - 1) ?
1594                                 points.get(0) : points.get(i + 1);
1595                         if(button_press) {
1596                                 float point_distance1 = line_dist(point1->x,point1->y, mask_cursor_x,mask_cursor_y);
1597                                 if(point_distance1 < shortest_point_distance || shortest_point < 0) {
1598                                         shortest_point_distance = point_distance1;
1599                                         shortest_point = i;
1600                                 }
1601
1602                                 float point_distance2 = line_dist(point2->x,point2->y, mask_cursor_x,mask_cursor_y);
1603                                 if(point_distance2 < shortest_point_distance || shortest_point < 0) {
1604                                         shortest_point_distance = point_distance2;
1605                                         shortest_point = (i >= points.size() - 1) ? 0 : (i + 1);
1606                                 }
1607                         }
1608
1609                         int segments = 1 + line_dist(point1->x,point1->y, point2->x,point2->y);
1610
1611 //printf("CWindowCanvas::do_mask 1 %f, %f -> %f, %f projectorz=%f\n",
1612 //point1->x, point1->y, point2->x, point2->y, projector_z);
1613                         for(int j = 0; j <= segments && !result; j++) {
1614 //printf("CWindowCanvas::do_mask 1 %f, %f -> %f, %f\n", x0, y0, x3, y3);
1615                                 float x0 = point1->x, y0 = point1->y;
1616                                 float x1 = point1->x + point1->control_x2;
1617                                 float y1 = point1->y + point1->control_y2;
1618                                 float x2 = point2->x + point2->control_x1;
1619                                 float y2 = point2->y + point2->control_y1;
1620                                 float x3 = point2->x, y3 = point2->y;
1621                                 float canvas_x0 = (x0 - half_track_w) * projector_z + projector_x;
1622                                 float canvas_y0 = (y0 - half_track_h) * projector_z + projector_y;
1623                                 float canvas_x1 = (x1 - half_track_w) * projector_z + projector_x;
1624                                 float canvas_y1 = (y1 - half_track_h) * projector_z + projector_y;
1625                                 float canvas_x2 = (x2 - half_track_w) * projector_z + projector_x;
1626                                 float canvas_y2 = (y2 - half_track_h) * projector_z + projector_y;
1627                                 float canvas_x3 = (x3 - half_track_w) * projector_z + projector_x;
1628                                 float canvas_y3 = (y3 - half_track_h) * projector_z + projector_y;
1629
1630                                 float t = (float)j / segments;
1631                                 float tpow2 = t * t;
1632                                 float tpow3 = t * t * t;
1633                                 float invt = 1 - t;
1634                                 float invtpow2 = invt * invt;
1635                                 float invtpow3 = invt * invt * invt;
1636
1637                                 float x = (           invtpow3 * x0
1638                                         + 3 * t     * invtpow2 * x1
1639                                         + 3 * tpow2 * invt     * x2
1640                                         +     tpow3            * x3);
1641                                 float y = (           invtpow3 * y0
1642                                         + 3 * t     * invtpow2 * y1
1643                                         + 3 * tpow2 * invt     * y2
1644                                         +     tpow3            * y3);
1645                                 float canvas_x = (x - half_track_w) * projector_z + projector_x;
1646                                 float canvas_y = (y - half_track_h) * projector_z + projector_y;
1647 // Test new point addition
1648                                 if(button_press) {
1649                                         float line_distance = line_dist(x,y, mask_cursor_x,mask_cursor_y);
1650
1651 //printf("CWindowCanvas::do_mask 1 x=%f cursor_x=%f y=%f cursor_y=%f %f %f %d, %d\n",
1652 //  x, cursor_x, y, cursor_y, line_distance, shortest_line_distance, shortest_point1, shortest_point2);
1653                                         if(line_distance < shortest_line_distance ||
1654                                                 shortest_point1 < 0) {
1655                                                 shortest_line_distance = line_distance;
1656                                                 shortest_point1 = i;
1657                                                 shortest_point2 = (i >= points.size() - 1) ? 0 : (i + 1);
1658 //printf("CWindowCanvas::do_mask 2 %f %f %d, %d\n",
1659 //  line_distance, shortest_line_distance, shortest_point1, shortest_point2);
1660                                         }
1661
1662 // Test existing point selection
1663 // Test first point
1664                                         if(gui->ctrl_down()) {
1665                                                 float distance = line_dist(x1,y1, mask_cursor_x,mask_cursor_y);
1666
1667                                                 if(distance < selected_control_point_distance) {
1668                                                         selected_point = i;
1669                                                         selected_control_point = 1;
1670                                                         selected_control_point_distance = distance;
1671                                                 }
1672                                         }
1673                                         else {
1674                                                 if(!gui->shift_down()) {
1675                                                         output_to_canvas(mwindow->edl, 0, canvas_x0, canvas_y0);
1676                                                         if(test_bbox(cursor_x, cursor_y, canvas_x0, canvas_y0)) {
1677                                                                 selected_point = i;
1678                                                         }
1679                                                 }
1680                                                 else {
1681                                                         selected_point = shortest_point;
1682                                                 }
1683                                         }
1684 // Test second point
1685                                         if(gui->ctrl_down()) {
1686                                                 float distance = line_dist(x2,y2, mask_cursor_x,mask_cursor_y);
1687
1688 //printf("CWindowCanvas::do_mask %d %f %f\n", i, distance, selected_control_point_distance);
1689                                                 if(distance < selected_control_point_distance) {
1690                                                         selected_point = (i < points.size() - 1 ? i + 1 : 0);
1691                                                         selected_control_point = 0;
1692                                                         selected_control_point_distance = distance;
1693                                                 }
1694                                         }
1695                                         else if(i < points.size() - 1) {
1696                                                 if(!gui->shift_down()) {
1697                                                         output_to_canvas(mwindow->edl, 0, canvas_x3, canvas_y3);
1698                                                         if(test_bbox(cursor_x, cursor_y, canvas_x3, canvas_y3)) {
1699                                                                 selected_point = (i < points.size() - 1 ? i + 1 : 0);
1700                                                         }
1701                                                 }
1702                                                 else {
1703                                                         selected_point = shortest_point;
1704                                                 }
1705                                         }
1706                                 }
1707
1708                                 output_to_canvas(mwindow->edl, 0, canvas_x, canvas_y);
1709
1710                                 if( j > 0 ) {
1711
1712                                         if( draw ) { // Draw joining line
1713                                                 x_points.append((int)canvas_x);
1714                                                 y_points.append((int)canvas_y);
1715                                         }
1716
1717                                         if( j == segments ) {
1718                                                 if( draw && draw_markers ) { // Draw second anchor
1719                                                         if(i < points.size() - 1) {
1720                                                                 if(i == gui->affected_point - 1)
1721                                                                         get_canvas()->draw_disc(
1722                                                                                 (int)canvas_x - CONTROL_W / 2,
1723                                                                                 (int)canvas_y - CONTROL_W / 2,
1724                                                                                 CONTROL_W, CONTROL_H);
1725                                                                 else
1726                                                                         get_canvas()->draw_circle(
1727                                                                                 (int)canvas_x - CONTROL_W / 2,
1728                                                                                 (int)canvas_y - CONTROL_W / 2,
1729                                                                                 CONTROL_W, CONTROL_H);
1730 // char string[BCTEXTLEN];
1731 // sprintf(string, "%d", (i < points.size() - 1 ? i + 1 : 0));
1732 // canvas->draw_text((int)canvas_x + CONTROL_W, (int)canvas_y + CONTROL_W, string);
1733                                                         }
1734 // Draw second control point.
1735                                                         output_to_canvas(mwindow->edl, 0, canvas_x2, canvas_y2);
1736                                                         get_canvas()->draw_line(
1737                                                                 (int)canvas_x, (int)canvas_y,
1738                                                                 (int)canvas_x2, (int)canvas_y2);
1739                                                         get_canvas()->draw_rectangle(
1740                                                                 (int)canvas_x2 - CONTROL_W / 2,
1741                                                                 (int)canvas_y2 - CONTROL_H / 2,
1742                                                                 CONTROL_W, CONTROL_H);
1743                                                 }
1744                                         }
1745                                 }
1746                                 else {
1747 // Draw first anchor
1748                                         if( i == 0 && draw ) {
1749                                                 if( draw_boundary ) {
1750                                                         char mask_label[BCSTRLEN];
1751                                                         int k = mwindow->edl->session->cwindow_mask;
1752                                                         if( !prev_mask || prev_mask->is_default ||
1753                                                             k < 0 || k >= prev_mask->masks.size() )
1754                                                                 sprintf(mask_label, "%d", k);
1755                                                         else
1756                                                                 sprintf(mask_label, "%s", prev_mask->masks[k]->name);
1757                                                         get_canvas()->draw_text(
1758                                                                 (int)canvas_x - FIRST_CONTROL_W,
1759                                                                 (int)canvas_y - FIRST_CONTROL_H,
1760                                                                 mask_label);
1761                                                 }
1762                                                 if( draw_markers ) {
1763                                                         get_canvas()->draw_disc(
1764                                                                 (int)canvas_x - FIRST_CONTROL_W / 2,
1765                                                                 (int)canvas_y - FIRST_CONTROL_H / 2,
1766                                                                 FIRST_CONTROL_W, FIRST_CONTROL_H);
1767                                                 }
1768                                         }
1769
1770 // Draw first control point.
1771                                         if( draw && draw_markers ) {
1772                                                 output_to_canvas(mwindow->edl, 0, canvas_x1, canvas_y1);
1773                                                 get_canvas()->draw_line(
1774                                                         (int)canvas_x, (int)canvas_y,
1775                                                         (int)canvas_x1, (int)canvas_y1);
1776                                                 get_canvas()->draw_rectangle(
1777                                                         (int)canvas_x1 - CONTROL_W / 2,
1778                                                         (int)canvas_y1 - CONTROL_H / 2,
1779                                                         CONTROL_W, CONTROL_H);
1780
1781                                                 x_points.append((int)canvas_x);
1782                                                 y_points.append((int)canvas_y);
1783                                         }
1784                                 }
1785 //printf("CWindowCanvas::do_mask 1\n");
1786
1787                         }
1788                 }
1789 //printf("CWindowCanvas::do_mask 1\n");
1790
1791                 BC_WindowBase *cvs_win = get_canvas();
1792                 if( draw && draw_boundary ) {
1793                         cvs_win->draw_polygon(&x_points, &y_points);
1794                         cvs_win->set_opaque();
1795                 }
1796                 if( draw && mask_gui && mask_gui->focused ) {
1797                         float fx = atof(mask_gui->focus_x->get_text());
1798                         float fy = atof(mask_gui->focus_y->get_text());
1799                         output_to_canvas(mwindow->edl, 0, fx, fy);
1800                         float r = bmax(cvs_win->get_w(), cvs_win->get_h());
1801                         float d = 0.005*r;
1802                         cvs_win->set_line_width((int)(0.0025*r) + 1);
1803                         cvs_win->set_color(BLUE);
1804                         cvs_win->draw_line(fx-d,fy-d, fx+d, fy+d);
1805                         cvs_win->draw_line(fx-d,fy+d, fx+d, fy-d);
1806                         cvs_win->set_line_width(0);
1807                         cvs_win->set_color(WHITE);
1808                 }
1809 //printf("CWindowCanvas::do_mask 1\n");
1810         }
1811
1812         if(button_press && !result) {
1813                 gui->affected_track = gui->cwindow->calculate_affected_track();
1814
1815 // Get keyframe outside the EDL to edit.  This must be rendered
1816 // instead of the EDL keyframes when it exists.  Then it must be
1817 // applied to the EDL keyframes on buttonrelease.
1818                 if(gui->affected_track) {
1819 #ifdef USE_KEYFRAME_SPANNING
1820 // Make copy of current parameters in local keyframe
1821                         gui->mask_keyframe =
1822                                 (MaskAuto*)gui->cwindow->calculate_affected_auto(
1823                                         mask_autos,
1824                                         0);
1825                         gui->orig_mask_keyframe->copy_data(gui->mask_keyframe);
1826 #else
1827
1828                         gui->mask_keyframe =
1829                                 (MaskAuto*)gui->cwindow->calculate_affected_auto(
1830                                         mask_autos,
1831                                         1);
1832 #endif
1833                 }
1834                 SubMask *mask = gui->mask_keyframe->get_submask(mwindow->edl->session->cwindow_mask);
1835
1836                 if( get_buttonpress() == WHEEL_UP || get_buttonpress() == WHEEL_DOWN ) {
1837                         if( !gui->shift_down() ) {
1838                                 mwindow->undo->update_undo_before(_("mask rotate"), this);
1839                                 gui->current_operation = CWINDOW_MASK_ROTATE;
1840                         }
1841                         else {
1842                                 mwindow->undo->update_undo_before(_("mask scale"), this);
1843                                 gui->current_operation = CWINDOW_MASK_SCALE;
1844                         }
1845                         gui->affected_point = 0;
1846                 }
1847                 else
1848 // Translate entire keyframe
1849                 if(gui->alt_down() && mask->points.size()) {
1850                         mwindow->undo->update_undo_before(_("mask translate"), 0);
1851                         gui->current_operation = CWINDOW_MASK_TRANSLATE;
1852                         gui->affected_point = 0;
1853                 }
1854                 else
1855 // Existing point or control point was selected
1856                 if(selected_point >= 0) {
1857                         mwindow->undo->update_undo_before(_("mask adjust"), 0);
1858                         gui->affected_point = selected_point;
1859
1860                         if(selected_control_point == 0)
1861                                 gui->current_operation = CWINDOW_MASK_CONTROL_IN;
1862                         else
1863                         if(selected_control_point == 1)
1864                                 gui->current_operation = CWINDOW_MASK_CONTROL_OUT;
1865                         else
1866                                 gui->current_operation = mwindow->edl->session->cwindow_operation;
1867                 }
1868                 else // No existing point or control point was selected so create a new one
1869                 if(!gui->ctrl_down() && !gui->alt_down()) {
1870                         mwindow->undo->update_undo_before(_("mask point"), 0);
1871 // Create the template
1872                         MaskPoint *point = new MaskPoint;
1873                         point->x = mask_cursor_x;
1874                         point->y = mask_cursor_y;
1875                         point->control_x1 = 0;
1876                         point->control_y1 = 0;
1877                         point->control_x2 = 0;
1878                         point->control_y2 = 0;
1879
1880
1881                         if(shortest_point2 < shortest_point1) {
1882                                 shortest_point2 ^= shortest_point1;
1883                                 shortest_point1 ^= shortest_point2;
1884                                 shortest_point2 ^= shortest_point1;
1885                         }
1886
1887
1888
1889 // printf("CWindowGUI::do_mask 40\n");
1890 // mwindow->edl->dump();
1891 // printf("CWindowGUI::do_mask 50\n");
1892
1893
1894
1895 //printf("CWindowCanvas::do_mask 1 %f %f %d %d\n",
1896 //      shortest_line_distance, shortest_point_distance, shortest_point1, shortest_point2);
1897 //printf("CWindowCanvas::do_mask %d %d\n", shortest_point1, shortest_point2);
1898
1899 // Append to end of list
1900                         if( shortest_point1 == shortest_point2 ||
1901                             labs(shortest_point1 - shortest_point2) > 1) {
1902 #ifdef USE_KEYFRAME_SPANNING
1903
1904                                 MaskPoint *new_point = new MaskPoint;
1905                                 points.append(new_point);
1906                                 *new_point = *point;
1907                                 gui->affected_point = points.size() - 1;
1908
1909 #else
1910
1911 // Need to apply the new point to every keyframe
1912                                 for(MaskAuto *current = (MaskAuto*)mask_autos->default_auto; current; ) {
1913                                         SubMask *submask = current->get_submask(mwindow->edl->session->cwindow_mask);
1914                                         MaskPoint *new_point = new MaskPoint;
1915                                         submask->points.append(new_point);
1916                                         *new_point = *point;
1917                                         if(current == (MaskAuto*)mask_autos->default_auto)
1918                                                 current = (MaskAuto*)mask_autos->first;
1919                                         else
1920                                                 current = (MaskAuto*)NEXT;
1921                                 }
1922                                 gui->affected_point = mask->points.size() - 1;
1923 #endif
1924
1925                                 result = 1;
1926                         }
1927                         else
1928 // Insert between 2 points, shifting back point 2
1929                         if(shortest_point1 >= 0 && shortest_point2 >= 0) {
1930
1931 #ifdef USE_KEYFRAME_SPANNING
1932 // In case the keyframe point count isn't synchronized with the rest of the keyframes,
1933 // avoid a crash.
1934                                 if(points.size() >= shortest_point2) {
1935                                         MaskPoint *new_point = new MaskPoint;
1936                                         points.append(0);
1937                                         for(int i = points.size() - 1;
1938                                                 i > shortest_point2;
1939                                                 i--)
1940                                                 points.values[i] = points.values[i - 1];
1941                                         points.values[shortest_point2] = new_point;
1942
1943                                         *new_point = *point;
1944                                 }
1945
1946 #else
1947
1948                                 for(MaskAuto *current = (MaskAuto*)mask_autos->default_auto; current; ) {
1949                                         SubMask *submask = current->get_submask(mwindow->edl->session->cwindow_mask);
1950 // In case the keyframe point count isn't synchronized with the rest of the keyframes,
1951 // avoid a crash.
1952                                         if(submask->points.size() >= shortest_point2) {
1953                                                 MaskPoint *new_point = new MaskPoint;
1954                                                 submask->points.append(0);
1955                                                 for(int i = submask->points.size() - 1;
1956                                                         i > shortest_point2;
1957                                                         i--)
1958                                                         submask->points.values[i] = submask->points.values[i - 1];
1959                                                 submask->points.values[shortest_point2] = new_point;
1960
1961                                                 *new_point = *point;
1962                                         }
1963
1964                                         if(current == (MaskAuto*)mask_autos->default_auto)
1965                                                 current = (MaskAuto*)mask_autos->first;
1966                                         else
1967                                                 current = (MaskAuto*)NEXT;
1968                                 }
1969
1970 #endif
1971                                 gui->affected_point = shortest_point2;
1972                                 result = 1;
1973                         }
1974
1975
1976 // printf("CWindowGUI::do_mask 20\n");
1977 // mwindow->edl->dump();
1978 // printf("CWindowGUI::do_mask 30\n");
1979
1980                         if(!result) {
1981 //printf("CWindowCanvas::do_mask 1\n");
1982 // Create the first point.
1983 #ifdef USE_KEYFRAME_SPANNING
1984                                 MaskPoint *new_point = new MaskPoint;
1985                                 points.append(new_point);
1986                                 *new_point = *point;
1987                                 gui->affected_point = points.size() - 1;
1988 #else
1989                                 for(MaskAuto *current = (MaskAuto*)mask_autos->default_auto; current; ) {
1990                                         SubMask *submask = current->get_submask(mwindow->edl->session->cwindow_mask);
1991                                         MaskPoint *new_point = new MaskPoint;
1992                                         submask->points.append(new_point);
1993                                         *new_point = *point;
1994                                         if(current == (MaskAuto*)mask_autos->default_auto)
1995                                                 current = (MaskAuto*)mask_autos->first;
1996                                         else
1997                                                 current = (MaskAuto*)NEXT;
1998                                 }
1999                                 gui->affected_point = points.size() - 1;
2000 #endif
2001
2002 //printf("CWindowCanvas::do_mask 3 %d\n", mask->points.size());
2003                         }
2004
2005                         gui->current_operation = mwindow->edl->session->cwindow_operation;
2006 // Delete the template
2007                         delete point;
2008                 }
2009
2010                 result = 1;
2011                 rerender = 1;
2012                 redraw = 1;
2013         }
2014
2015         if(button_press && result) {
2016 #ifdef USE_KEYFRAME_SPANNING
2017                 ArrayList<MaskPoint*> &mask_points = points;
2018 #else
2019                 SubMask *mask = gui->mask_keyframe->get_submask(mwindow->edl->session->cwindow_mask);
2020                 ArrayList<MaskPoint*> &mask_points = mask->points;
2021 #endif
2022                 MaskPoint *point = mask_points.values[gui->affected_point];
2023                 gui->center_x = point->x;
2024                 gui->center_y = point->y;
2025                 gui->control_in_x = point->control_x1;
2026                 gui->control_in_y = point->control_y1;
2027                 gui->control_out_x = point->control_x2;
2028                 gui->control_out_y = point->control_y2;
2029                 gui->tool_panel->raise_window();
2030         }
2031
2032 //printf("CWindowCanvas::do_mask 8\n");
2033         if( cursor_motion ) {
2034
2035 #ifdef USE_KEYFRAME_SPANNING
2036 // Must update the reference keyframes for every cursor motion
2037                 gui->mask_keyframe = (MaskAuto*)gui->cwindow->
2038                         calculate_affected_auto(mask_autos, 0);
2039                 gui->orig_mask_keyframe->copy_data(gui->mask_keyframe);
2040 #endif
2041
2042 //printf("CWindowCanvas::do_mask %d %d\n", __LINE__, gui->affected_point);
2043
2044                 SubMask *mask = gui->mask_keyframe->get_submask(mwindow->edl->session->cwindow_mask);
2045                 if( gui->affected_point >= 0 && gui->affected_point < mask->points.size() &&
2046                         gui->current_operation != CWINDOW_NONE) {
2047 //                      mwindow->undo->update_undo_before(_("mask point"), this);
2048 #ifdef USE_KEYFRAME_SPANNING
2049                         ArrayList<MaskPoint*> &mask_points = points;
2050 #else
2051                         ArrayList<MaskPoint*> &mask_points = mask->points;
2052 #endif
2053                         MaskPoint *point = mask_points.get(gui->affected_point);
2054 //                      canvas_to_output(mwindow->edl, 0, cursor_x, cursor_y);
2055 //printf("CWindowCanvas::do_mask 9 %d %d\n", mask_points.size(), gui->affected_point);
2056
2057                         float last_x = point->x;
2058                         float last_y = point->y;
2059                         float last_control_x1 = point->control_x1;
2060                         float last_control_y1 = point->control_y1;
2061                         float last_control_x2 = point->control_x2;
2062                         float last_control_y2 = point->control_y2;
2063                         int rotate = 0;
2064
2065                         switch(gui->current_operation) {
2066                         case CWINDOW_MASK:
2067 //printf("CWindowCanvas::do_mask %d %d\n", __LINE__, gui->affected_point);
2068                                 point->x = mask_cursor_x - gui->x_origin + gui->center_x;
2069                                 point->y = mask_cursor_y - gui->y_origin + gui->center_y;
2070                                 break;
2071
2072                         case CWINDOW_MASK_CONTROL_IN:
2073                                 point->control_x1 = mask_cursor_x - gui->x_origin + gui->control_in_x;
2074                                 point->control_y1 = mask_cursor_y - gui->y_origin + gui->control_in_y;
2075                                 break;
2076
2077                         case CWINDOW_MASK_CONTROL_OUT:
2078                                 point->control_x2 = mask_cursor_x - gui->x_origin + gui->control_out_x;
2079                                 point->control_y2 = mask_cursor_y - gui->y_origin + gui->control_out_y;
2080                                 break;
2081
2082                         case CWINDOW_MASK_TRANSLATE:
2083                                 for(int i = 0; i < mask_points.size(); i++) {
2084                                         mask_points.values[i]->x += mask_cursor_x - gui->x_origin;
2085                                         mask_points.values[i]->y += mask_cursor_y - gui->y_origin;
2086                                 }
2087                                 gui->x_origin = mask_cursor_x;
2088                                 gui->y_origin = mask_cursor_y;
2089                                 break;
2090                         case CWINDOW_MASK_ROTATE:
2091                                 rotate = 1;
2092                         case CWINDOW_MASK_SCALE: {
2093                                 int button_no = get_buttonpress();
2094                                 double scale = button_no == WHEEL_UP ? 1.02 : 0.98;
2095                                 double theta = button_no == WHEEL_UP ? M_PI/360. : -M_PI/360.;
2096                                 float st = sin(theta), ct = cos(theta);
2097                                 gui->x_origin = mask_cursor_x;
2098                                 gui->y_origin = mask_cursor_y;
2099                                 if( mask_gui && mask_gui->focused ) {
2100                                         gui->x_origin = atof(mask_gui->focus_x->get_text());
2101                                         gui->y_origin = atof(mask_gui->focus_y->get_text());
2102                                 }
2103                                 for( int i=0; i<mask_points.size(); ++i ) {
2104                                         MaskPoint *point = mask_points.values[i];
2105                                         float px = point->x - gui->x_origin;
2106                                         float py = point->y - gui->y_origin;
2107                                         float nx = !rotate ? px*scale : px*ct + py*st;
2108                                         float ny = !rotate ? py*scale : py*ct - px*st;
2109                                         point->x = nx + gui->x_origin;
2110                                         point->y = ny + gui->y_origin;
2111                                         px = point->control_x1;  py = point->control_y1;
2112                                         point->control_x1 = !rotate ? px*scale : px*ct + py*st;
2113                                         point->control_y1 = !rotate ? py*scale : py*ct - px*st;
2114                                         px = point->control_x2;  py = point->control_y2;
2115                                         point->control_x2 = !rotate ? px*scale : px*ct + py*st;
2116                                         point->control_y2 = !rotate ? py*scale : py*ct - px*st;
2117                                 }
2118                                 break; }
2119                         }
2120
2121                         if( !EQUIV(last_x, point->x) ||
2122                                 !EQUIV(last_y, point->y) ||
2123                                 !EQUIV(last_control_x1, point->control_x1) ||
2124                                 !EQUIV(last_control_y1, point->control_y1) ||
2125                                 !EQUIV(last_control_x2, point->control_x2) ||
2126                                 !EQUIV(last_control_y2, point->control_y2)) {
2127                                 rerender = 1;
2128                                 redraw = 1;
2129                         }
2130                 }
2131                 else
2132                 if(gui->current_operation == CWINDOW_NONE) {
2133 //                      printf("CWindowCanvas::do_mask %d\n", __LINE__);
2134                         int over_point = 0;
2135                         for(int i = 0; i < points.size() && !over_point; i++) {
2136                                 MaskPoint *point = points.get(i);
2137                                 float x0 = point->x;
2138                                 float y0 = point->y;
2139                                 float x1 = point->x + point->control_x1;
2140                                 float y1 = point->y + point->control_y1;
2141                                 float x2 = point->x + point->control_x2;
2142                                 float y2 = point->y + point->control_y2;
2143                                 float canvas_x0 = (x0 - half_track_w) * projector_z + projector_x;
2144                                 float canvas_y0 = (y0 - half_track_h) * projector_z + projector_y;
2145
2146                                 output_to_canvas(mwindow->edl, 0, canvas_x0, canvas_y0);
2147                                 if(test_bbox(cursor_x, cursor_y, canvas_x0, canvas_y0)) {
2148                                         over_point = 1;
2149                                 }
2150
2151                                 if(!over_point && gui->ctrl_down()) {
2152                                         float canvas_x1 = (x1 - half_track_w) * projector_z + projector_x;
2153                                         float canvas_y1 = (y1 - half_track_h) * projector_z + projector_y;
2154                                         output_to_canvas(mwindow->edl, 0, canvas_x1, canvas_y1);
2155                                         if(test_bbox(cursor_x, cursor_y, canvas_x1, canvas_y1)) {
2156                                                 over_point = 1;
2157                                         }
2158                                         else {
2159                                                 float canvas_x2 = (x2 - half_track_w) * projector_z + projector_x;
2160                                                 float canvas_y2 = (y2 - half_track_h) * projector_z + projector_y;
2161                                                 output_to_canvas(mwindow->edl, 0, canvas_x2, canvas_y2);
2162                                                 if(test_bbox(cursor_x, cursor_y, canvas_x2, canvas_y2)) {
2163                                                         over_point = 1;
2164                                                 }
2165                                         }
2166                                 }
2167                         }
2168
2169                         set_cursor( over_point ? ARROW_CURSOR : CROSS_CURSOR );
2170                 }
2171
2172                 result = 1;
2173         }
2174 //printf("CWindowCanvas::do_mask 2 %d %d %d\n", result, rerender, redraw);
2175
2176
2177 #ifdef USE_KEYFRAME_SPANNING
2178 // Must commit change after operation.
2179         if(rerender && track) {
2180 // Swap EDL keyframe with original.
2181 // Apply new values to keyframe span
2182                 MaskAuto temp_keyframe(mwindow->edl, mask_autos);
2183                 temp_keyframe.copy_data(gui->mask_keyframe);
2184 // Apply interpolated points back to keyframe
2185                 temp_keyframe.set_points(&points, mwindow->edl->session->cwindow_mask);
2186                 gui->mask_keyframe->copy_data(gui->orig_mask_keyframe);
2187                 mask_autos->update_parameter(&temp_keyframe);
2188         }
2189 #endif
2190
2191         points.remove_all_objects();
2192 //printf("CWindowCanvas::do_mask 20\n");
2193         return result;
2194 }
2195
2196 int CWindowCanvas::do_mask_focus()
2197 {
2198         CWindowMaskGUI *mask_gui = (CWindowMaskGUI*) gui->tool_panel->tool_gui;
2199         float cx = get_cursor_x(), cy = get_cursor_y();
2200         canvas_to_output(mwindow->edl, 0, cx, cy);
2201         int v = mask_gui->focused ? 0 : 1;
2202         get_canvas()->unlock_window();
2203         mask_gui->lock_window("CWindowCanvas::do_mask_focus");
2204         mask_gui->set_focused(v, cx, cy);
2205         mask_gui->unlock_window();
2206         get_canvas()->lock_window("CWindowCanvas::do_mask_focus");
2207         return 1;
2208 }
2209
2210 int CWindowCanvas::do_eyedrop(int &rerender, int button_press, int draw)
2211 {
2212         int result = 0;
2213         int radius = mwindow->edl->session->eyedrop_radius;
2214         int row1 = 0;
2215         int row2 = 0;
2216         int column1 = 0;
2217         int column2 = 0;
2218
2219
2220
2221         if(refresh_frame && refresh_frame->get_w()>0 && refresh_frame->get_h()>0)
2222         {
2223
2224                 if(draw)
2225                 {
2226                         row1 = gui->eyedrop_y - radius;
2227                         row2 = gui->eyedrop_y + radius;
2228                         column1 = gui->eyedrop_x - radius;
2229                         column2 = gui->eyedrop_x + radius;
2230
2231                         CLAMP(row1, 0, refresh_frame->get_h() - 1);
2232                         CLAMP(row2, 0, refresh_frame->get_h() - 1);
2233                         CLAMP(column1, 0, refresh_frame->get_w() - 1);
2234                         CLAMP(column2, 0, refresh_frame->get_w() - 1);
2235
2236                         if(row2 <= row1) row2 = row1 + 1;
2237                         if(column2 <= column1) column2 = column1 + 1;
2238
2239                         float x1 = column1;
2240                         float y1 = row1;
2241                         float x2 = column2;
2242                         float y2 = row2;
2243
2244                         output_to_canvas(mwindow->edl, 0, x1, y1);
2245                         output_to_canvas(mwindow->edl, 0, x2, y2);
2246 //printf("CWindowCanvas::do_eyedrop %d %f %f %f %f\n", __LINE__, x1, x2, y1, y2);
2247
2248                         if(x2 - x1 >= 1 && y2 - y1 >= 1)
2249                         {
2250                                 get_canvas()->set_inverse();
2251                                 get_canvas()->set_color(WHITE);
2252
2253                                 get_canvas()->draw_rectangle((int)x1,
2254                                         (int)y1,
2255                                         (int)(x2 - x1),
2256                                         (int)(y2 - y1));
2257
2258                                 get_canvas()->set_opaque();
2259                                 get_canvas()->flash();
2260                         }
2261                         return 0;
2262                 }
2263         }
2264
2265         if(button_press)
2266         {
2267                 gui->current_operation = CWINDOW_EYEDROP;
2268                 gui->tool_panel->raise_window();
2269         }
2270
2271         if(gui->current_operation == CWINDOW_EYEDROP)
2272         {
2273                 mwindow->undo->update_undo_before(_("Eyedrop"), this);
2274
2275 // Get color out of frame.
2276 // Doesn't work during playback because that bypasses the refresh frame.
2277                 if(refresh_frame && refresh_frame->get_w()>0 && refresh_frame->get_h()>0)
2278                 {
2279                         float cursor_x = get_cursor_x();
2280                         float cursor_y = get_cursor_y();
2281                         canvas_to_output(mwindow->edl, 0, cursor_x, cursor_y);
2282                         CLAMP(cursor_x, 0, refresh_frame->get_w() - 1);
2283                         CLAMP(cursor_y, 0, refresh_frame->get_h() - 1);
2284
2285                         row1 = cursor_y - radius;
2286                         row2 = cursor_y + radius;
2287                         column1 = cursor_x - radius;
2288                         column2 = cursor_x + radius;
2289                         CLAMP(row1, 0, refresh_frame->get_h() - 1);
2290                         CLAMP(row2, 0, refresh_frame->get_h() - 1);
2291                         CLAMP(column1, 0, refresh_frame->get_w() - 1);
2292                         CLAMP(column2, 0, refresh_frame->get_w() - 1);
2293                         if(row2 <= row1) row2 = row1 + 1;
2294                         if(column2 <= column1) column2 = column1 + 1;
2295
2296
2297 // hide it
2298                         if(gui->eyedrop_visible)
2299                         {
2300                                 int temp;
2301                                 do_eyedrop(temp, 0, 1);
2302                                 gui->eyedrop_visible = 0;
2303                         }
2304
2305                         gui->eyedrop_x = cursor_x;
2306                         gui->eyedrop_y = cursor_y;
2307
2308 // show it
2309                         {
2310                                 int temp;
2311                                 do_eyedrop(temp, 0, 1);
2312                                 gui->eyedrop_visible = 1;
2313                         }
2314
2315 // Decompression coefficients straight out of jpeglib
2316 #define V_TO_R    1.40200
2317 #define V_TO_G    -0.71414
2318
2319 #define U_TO_G    -0.34414
2320 #define U_TO_B    1.77200
2321
2322 #define GET_COLOR(type, components, max, do_yuv) \
2323 { \
2324         type *row = (type*)(refresh_frame->get_rows()[i]) + \
2325                 j * components; \
2326         float red = (float)*row++ / max; \
2327         float green = (float)*row++ / max; \
2328         float blue = (float)*row++ / max; \
2329         if(do_yuv) \
2330         { \
2331                 float r = red + V_TO_R * (blue - 0.5); \
2332                 float g = red + U_TO_G * (green - 0.5) + V_TO_G * (blue - 0.5); \
2333                 float b = red + U_TO_B * (green - 0.5); \
2334                 mwindow->edl->local_session->red += r; \
2335                 mwindow->edl->local_session->green += g; \
2336                 mwindow->edl->local_session->blue += b; \
2337                 if(r > mwindow->edl->local_session->red_max) mwindow->edl->local_session->red_max = r; \
2338                 if(g > mwindow->edl->local_session->green_max) mwindow->edl->local_session->green_max = g; \
2339                 if(b > mwindow->edl->local_session->blue_max) mwindow->edl->local_session->blue_max = b; \
2340         } \
2341         else \
2342         { \
2343                 mwindow->edl->local_session->red += red; \
2344                 mwindow->edl->local_session->green += green; \
2345                 mwindow->edl->local_session->blue += blue; \
2346                 if(red > mwindow->edl->local_session->red_max) mwindow->edl->local_session->red_max = red; \
2347                 if(green > mwindow->edl->local_session->green_max) mwindow->edl->local_session->green_max = green; \
2348                 if(blue > mwindow->edl->local_session->blue_max) mwindow->edl->local_session->blue_max = blue; \
2349         } \
2350 }
2351
2352
2353
2354                         mwindow->edl->local_session->red = 0;
2355                         mwindow->edl->local_session->green = 0;
2356                         mwindow->edl->local_session->blue = 0;
2357                         mwindow->edl->local_session->red_max = 0;
2358                         mwindow->edl->local_session->green_max = 0;
2359                         mwindow->edl->local_session->blue_max = 0;
2360                         for(int i = row1; i < row2; i++)
2361                         {
2362                                 for(int j = column1; j < column2; j++)
2363                                 {
2364                                         switch(refresh_frame->get_color_model())
2365                                         {
2366                                                 case BC_YUV888:
2367                                                         GET_COLOR(unsigned char, 3, 0xff, 1);
2368                                                         break;
2369                                                 case BC_YUVA8888:
2370                                                         GET_COLOR(unsigned char, 4, 0xff, 1);
2371                                                         break;
2372                                                 case BC_YUV161616:
2373                                                         GET_COLOR(uint16_t, 3, 0xffff, 1);
2374                                                         break;
2375                                                 case BC_YUVA16161616:
2376                                                         GET_COLOR(uint16_t, 4, 0xffff, 1);
2377                                                         break;
2378                                                 case BC_RGB888:
2379                                                         GET_COLOR(unsigned char, 3, 0xff, 0);
2380                                                         break;
2381                                                 case BC_RGBA8888:
2382                                                         GET_COLOR(unsigned char, 4, 0xff, 0);
2383                                                         break;
2384                                                 case BC_RGB_FLOAT:
2385                                                         GET_COLOR(float, 3, 1.0, 0);
2386                                                         break;
2387                                                 case BC_RGBA_FLOAT:
2388                                                         GET_COLOR(float, 4, 1.0, 0);
2389                                                         break;
2390                                         }
2391                                 }
2392                         }
2393
2394                         mwindow->edl->local_session->red /= (row2 - row1) * (column2 - column1);
2395                         mwindow->edl->local_session->green /= (row2 - row1) * (column2 - column1);
2396                         mwindow->edl->local_session->blue /= (row2 - row1) * (column2 - column1);
2397
2398                 }
2399                 else
2400                 {
2401                         mwindow->edl->local_session->red = 0;
2402                         mwindow->edl->local_session->green = 0;
2403                         mwindow->edl->local_session->blue = 0;
2404                         gui->eyedrop_visible = 0;
2405                 }
2406
2407
2408                 gui->update_tool();
2409
2410
2411
2412                 result = 1;
2413 // Can't rerender since the color value is from the output of any effect it
2414 // goes into.
2415 //              rerender = 1;
2416                 mwindow->undo->update_undo_after(_("Eyedrop"), LOAD_SESSION);
2417         }
2418
2419         return result;
2420 }
2421
2422 int CWindowCanvas::need_overlays()
2423 {
2424         if( mwindow->edl->session->safe_regions ) return 1;
2425         if( mwindow->edl->session->cwindow_scrollbars ) return 1;
2426         if( gui->highlighted ) return 1;
2427         switch( mwindow->edl->session->cwindow_operation ) {
2428                 case CWINDOW_EYEDROP:
2429                         if( ! gui->eyedrop_visible ) break;
2430                 case CWINDOW_CAMERA:
2431                 case CWINDOW_PROJECTOR:
2432                 case CWINDOW_CROP:
2433                 case CWINDOW_MASK:
2434                 case CWINDOW_RULER:
2435                         return 1;
2436         }
2437         return 0;
2438 }
2439
2440 void CWindowCanvas::draw_overlays()
2441 {
2442         if(mwindow->edl->session->safe_regions)
2443         {
2444                 draw_safe_regions();
2445         }
2446
2447         if(mwindow->edl->session->cwindow_scrollbars)
2448         {
2449 // Always draw output rectangle
2450                 float x1, y1, x2, y2;
2451                 x1 = 0;
2452                 x2 = mwindow->edl->session->output_w;
2453                 y1 = 0;
2454                 y2 = mwindow->edl->session->output_h;
2455                 output_to_canvas(mwindow->edl, 0, x1, y1);
2456                 output_to_canvas(mwindow->edl, 0, x2, y2);
2457
2458                 get_canvas()->set_inverse();
2459                 get_canvas()->set_color(WHITE);
2460
2461                 get_canvas()->draw_rectangle((int)x1,
2462                                 (int)y1,
2463                                 (int)(x2 - x1),
2464                                 (int)(y2 - y1));
2465
2466                 get_canvas()->set_opaque();
2467         }
2468
2469         if(gui->highlighted)
2470         {
2471                 get_canvas()->set_color(WHITE);
2472                 get_canvas()->set_inverse();
2473                 get_canvas()->draw_rectangle(0, 0, get_canvas()->get_w(), get_canvas()->get_h());
2474                 get_canvas()->draw_rectangle(1, 1, get_canvas()->get_w() - 2, get_canvas()->get_h() - 2);
2475                 get_canvas()->set_opaque();
2476         }
2477
2478         int temp1 = 0, temp2 = 0;
2479 //printf("CWindowCanvas::draw_overlays 1 %d\n", mwindow->edl->session->cwindow_operation);
2480         switch(mwindow->edl->session->cwindow_operation)
2481         {
2482                 case CWINDOW_CAMERA:
2483                         draw_outlines(1);
2484                         break;
2485
2486                 case CWINDOW_PROJECTOR:
2487                         draw_outlines(0);
2488                         break;
2489
2490                 case CWINDOW_CROP:
2491                         draw_crop();
2492                         break;
2493
2494                 case CWINDOW_MASK:
2495                         do_mask(temp1, temp2, 0, 0, 1);
2496                         break;
2497
2498                 case CWINDOW_RULER:
2499                         do_ruler(1, 0, 0, 0);
2500                         break;
2501
2502                 case CWINDOW_EYEDROP:
2503                 if(gui->eyedrop_visible)
2504                 {
2505                         int rerender;
2506                         do_eyedrop(rerender, 0, 1);
2507                         gui->eyedrop_visible = 1;
2508                         break;
2509                 }
2510         }
2511 }
2512
2513 void CWindowCanvas::draw_safe_regions()
2514 {
2515         float action_x1, action_x2, action_y1, action_y2;
2516         float title_x1, title_x2, title_y1, title_y2;
2517
2518         action_x1 = mwindow->edl->session->output_w / 2 - mwindow->edl->session->output_w / 2 * 0.9;
2519         action_x2 = mwindow->edl->session->output_w / 2 + mwindow->edl->session->output_w / 2 * 0.9;
2520         action_y1 = mwindow->edl->session->output_h / 2 - mwindow->edl->session->output_h / 2 * 0.9;
2521         action_y2 = mwindow->edl->session->output_h / 2 + mwindow->edl->session->output_h / 2 * 0.9;
2522         title_x1 = mwindow->edl->session->output_w / 2 - mwindow->edl->session->output_w / 2 * 0.8;
2523         title_x2 = mwindow->edl->session->output_w / 2 + mwindow->edl->session->output_w / 2 * 0.8;
2524         title_y1 = mwindow->edl->session->output_h / 2 - mwindow->edl->session->output_h / 2 * 0.8;
2525         title_y2 = mwindow->edl->session->output_h / 2 + mwindow->edl->session->output_h / 2 * 0.8;
2526
2527         output_to_canvas(mwindow->edl, 0, action_x1, action_y1);
2528         output_to_canvas(mwindow->edl, 0, action_x2, action_y2);
2529         output_to_canvas(mwindow->edl, 0, title_x1, title_y1);
2530         output_to_canvas(mwindow->edl, 0, title_x2, title_y2);
2531
2532         get_canvas()->set_inverse();
2533         get_canvas()->set_color(WHITE);
2534
2535         get_canvas()->draw_rectangle((int)action_x1,
2536                         (int)action_y1,
2537                         (int)(action_x2 - action_x1),
2538                         (int)(action_y2 - action_y1));
2539         get_canvas()->draw_rectangle((int)title_x1,
2540                         (int)title_y1,
2541                         (int)(title_x2 - title_x1),
2542                         (int)(title_y2 - title_y1));
2543
2544         get_canvas()->set_opaque();
2545 }
2546
2547
2548 void CWindowCanvas::create_keyframe(int do_camera)
2549 {
2550         Track *affected_track = gui->cwindow->calculate_affected_track();
2551         if( affected_track ) {
2552                 double pos = mwindow->edl->local_session->get_selectionstart(1);
2553                 int64_t position = affected_track->to_units(pos, 0);
2554                 int ix = do_camera ? AUTOMATION_CAMERA_X : AUTOMATION_PROJECTOR_X;
2555                 int iy = do_camera ? AUTOMATION_CAMERA_Y : AUTOMATION_PROJECTOR_Y;
2556                 int iz = do_camera ? AUTOMATION_CAMERA_Z : AUTOMATION_PROJECTOR_Z;
2557                 FloatAuto *prev, *next;
2558                 FloatAutos **autos = (FloatAutos**)affected_track->automation->autos;
2559                 FloatAutos *x_autos = autos[ix];  prev = 0;  next = 0;
2560                 float x_value = x_autos->get_value(position, PLAY_FORWARD, prev, next);
2561                 FloatAutos *y_autos = autos[iy];  prev = 0;  next = 0;
2562                 float y_value = y_autos->get_value(position, PLAY_FORWARD, prev, next);
2563                 FloatAutos *z_autos = autos[iz];  prev = 0;  next = 0;
2564                 float z_value = z_autos->get_value(position, PLAY_FORWARD, prev, next);
2565                 FloatAuto *x_keyframe = 0, *y_keyframe = 0, *z_keyframe = 0;
2566
2567                 gui->cwindow->calculate_affected_autos(affected_track,
2568                         &x_keyframe, &y_keyframe, &z_keyframe,
2569                         do_camera, -1, -1, -1, 0);
2570                 x_keyframe->set_value(x_value);
2571                 y_keyframe->set_value(y_value);
2572                 z_keyframe->set_value(z_value);
2573
2574                 gui->sync_parameters(CHANGE_PARAMS, 1, 1);
2575         }
2576 }
2577
2578 void CWindowCanvas::camera_keyframe() { create_keyframe(1); }
2579 void CWindowCanvas::projector_keyframe() { create_keyframe(0); }
2580
2581 void CWindowCanvas::reset_keyframe(int do_camera)
2582 {
2583         Track *affected_track = gui->cwindow->calculate_affected_track();
2584         if( affected_track ) {
2585                 FloatAuto *x_keyframe = 0, *y_keyframe = 0, *z_keyframe = 0;
2586                 gui->cwindow->calculate_affected_autos(affected_track,
2587                         &x_keyframe, &y_keyframe, &z_keyframe,
2588                         do_camera, 1, 1, 1);
2589
2590                 x_keyframe->set_value(0);
2591                 y_keyframe->set_value(0);
2592                 z_keyframe->set_value(1);
2593
2594                 gui->sync_parameters(CHANGE_PARAMS, 1, 1);
2595         }
2596 }
2597
2598 void CWindowCanvas::reset_camera() { reset_keyframe(1); }
2599 void CWindowCanvas::reset_projector() { reset_keyframe(0); }
2600
2601
2602 int CWindowCanvas::test_crop(int button_press, int &redraw)
2603 {
2604         int result = 0;
2605         int handle_selected = -1;
2606         float x1 = mwindow->edl->session->crop_x1;
2607         float y1 = mwindow->edl->session->crop_y1;
2608         float x2 = mwindow->edl->session->crop_x2;
2609         float y2 = mwindow->edl->session->crop_y2;
2610         float cursor_x = get_cursor_x();
2611         float cursor_y = get_cursor_y();
2612         float canvas_x1 = x1;
2613         float canvas_y1 = y1;
2614         float canvas_x2 = x2;
2615         float canvas_y2 = y2;
2616         float canvas_cursor_x = cursor_x;
2617         float canvas_cursor_y = cursor_y;
2618
2619         canvas_to_output(mwindow->edl, 0, cursor_x, cursor_y);
2620 // Use screen normalized coordinates for hot spot tests.
2621         output_to_canvas(mwindow->edl, 0, canvas_x1, canvas_y1);
2622         output_to_canvas(mwindow->edl, 0, canvas_x2, canvas_y2);
2623
2624
2625         if(gui->current_operation == CWINDOW_CROP)
2626         {
2627                 handle_selected = gui->crop_handle;
2628         }
2629         else
2630         if(canvas_cursor_x >= canvas_x1 && canvas_cursor_x < canvas_x1 + CROPHANDLE_W &&
2631                 canvas_cursor_y >= canvas_y1 && canvas_cursor_y < canvas_y1 + CROPHANDLE_H)
2632         {
2633                 handle_selected = 0;
2634                 gui->crop_origin_x = x1;
2635                 gui->crop_origin_y = y1;
2636         }
2637         else
2638         if(canvas_cursor_x >= canvas_x2 - CROPHANDLE_W && canvas_cursor_x < canvas_x2 &&
2639                 canvas_cursor_y >= canvas_y1 && canvas_cursor_y < canvas_y1 + CROPHANDLE_H)
2640         {
2641                 handle_selected = 1;
2642                 gui->crop_origin_x = x2;
2643                 gui->crop_origin_y = y1;
2644         }
2645         else
2646         if(canvas_cursor_x >= canvas_x1 && canvas_cursor_x < canvas_x1 + CROPHANDLE_W &&
2647                 canvas_cursor_y >= canvas_y2 - CROPHANDLE_H && canvas_cursor_y < canvas_y2)
2648         {
2649                 handle_selected = 2;
2650                 gui->crop_origin_x = x1;
2651                 gui->crop_origin_y = y2;
2652         }
2653         else
2654         if(canvas_cursor_x >= canvas_x2 - CROPHANDLE_W && canvas_cursor_x < canvas_x2 &&
2655                 canvas_cursor_y >= canvas_y2 - CROPHANDLE_H && canvas_cursor_y < canvas_y2)
2656         {
2657                 handle_selected = 3;
2658                 gui->crop_origin_x = x2;
2659                 gui->crop_origin_y = y2;
2660         }
2661         else
2662 // Start new box
2663         {
2664                 gui->crop_origin_x = cursor_x;
2665                 gui->crop_origin_y = cursor_y;
2666         }
2667
2668 // printf("test crop %d %d\n",
2669 //      gui->current_operation,
2670 //      handle_selected);
2671
2672 // Start dragging.
2673         if(button_press)
2674         {
2675                 if(gui->alt_down())
2676                 {
2677                         gui->crop_translate = 1;
2678                         gui->crop_origin_x1 = x1;
2679                         gui->crop_origin_y1 = y1;
2680                         gui->crop_origin_x2 = x2;
2681                         gui->crop_origin_y2 = y2;
2682                 }
2683                 else
2684                         gui->crop_translate = 0;
2685
2686                 gui->current_operation = CWINDOW_CROP;
2687                 gui->crop_handle = handle_selected;
2688                 gui->x_origin = cursor_x;
2689                 gui->y_origin = cursor_y;
2690                 gui->tool_panel->raise_window();
2691                 result = 1;
2692
2693                 if(handle_selected < 0 && !gui->crop_translate)
2694                 {
2695                         x2 = x1 = cursor_x;
2696                         y2 = y1 = cursor_y;
2697                         mwindow->edl->session->crop_x1 = (int)x1;
2698                         mwindow->edl->session->crop_y1 = (int)y1;
2699                         mwindow->edl->session->crop_x2 = (int)x2;
2700                         mwindow->edl->session->crop_y2 = (int)y2;
2701                         redraw = 1;
2702                 }
2703         }
2704         else
2705 // Translate all 4 points
2706         if(gui->current_operation == CWINDOW_CROP && gui->crop_translate)
2707         {
2708                 x1 = cursor_x - gui->x_origin + gui->crop_origin_x1;
2709                 y1 = cursor_y - gui->y_origin + gui->crop_origin_y1;
2710                 x2 = cursor_x - gui->x_origin + gui->crop_origin_x2;
2711                 y2 = cursor_y - gui->y_origin + gui->crop_origin_y2;
2712
2713                 mwindow->edl->session->crop_x1 = (int)x1;
2714                 mwindow->edl->session->crop_y1 = (int)y1;
2715                 mwindow->edl->session->crop_x2 = (int)x2;
2716                 mwindow->edl->session->crop_y2 = (int)y2;
2717                 result = 1;
2718                 redraw = 1;
2719         }
2720         else
2721 // Update dragging
2722         if(gui->current_operation == CWINDOW_CROP)
2723         {
2724                 switch(gui->crop_handle)
2725                 {
2726                         case -1:
2727                                 x1 = gui->crop_origin_x;
2728                                 y1 = gui->crop_origin_y;
2729                                 x2 = gui->crop_origin_x;
2730                                 y2 = gui->crop_origin_y;
2731                                 if(cursor_x < gui->x_origin)
2732                                 {
2733                                         if(cursor_y < gui->y_origin)
2734                                         {
2735                                                 x1 = cursor_x;
2736                                                 y1 = cursor_y;
2737                                         }
2738                                         else
2739                                         if(cursor_y >= gui->y_origin)
2740                                         {
2741                                                 x1 = cursor_x;
2742                                                 y2 = cursor_y;
2743                                         }
2744                                 }
2745                                 else
2746                                 if(cursor_x  >= gui->x_origin)
2747                                 {
2748                                         if(cursor_y < gui->y_origin)
2749                                         {
2750                                                 y1 = cursor_y;
2751                                                 x2 = cursor_x;
2752                                         }
2753                                         else
2754                                         if(cursor_y >= gui->y_origin)
2755                                         {
2756                                                 x2 = cursor_x;
2757                                                 y2 = cursor_y;
2758                                         }
2759                                 }
2760
2761 // printf("test crop %d %d %d %d\n",
2762 //      mwindow->edl->session->crop_x1,
2763 //      mwindow->edl->session->crop_y1,
2764 //      mwindow->edl->session->crop_x2,
2765 //      mwindow->edl->session->crop_y2);
2766                                 break;
2767                         case 0:
2768                                 x1 = cursor_x - gui->x_origin + gui->crop_origin_x;
2769                                 y1 = cursor_y - gui->y_origin + gui->crop_origin_y;
2770                                 break;
2771                         case 1:
2772                                 x2 = cursor_x - gui->x_origin + gui->crop_origin_x;
2773                                 y1 = cursor_y - gui->y_origin + gui->crop_origin_y;
2774                                 break;
2775                         case 2:
2776                                 x1 = cursor_x - gui->x_origin + gui->crop_origin_x;
2777                                 y2 = cursor_y - gui->y_origin + gui->crop_origin_y;
2778                                 break;
2779                         case 3:
2780                                 x2 = cursor_x - gui->x_origin + gui->crop_origin_x;
2781                                 y2 = cursor_y - gui->y_origin + gui->crop_origin_y;
2782                                 break;
2783                 }
2784
2785                 if(!EQUIV(mwindow->edl->session->crop_x1, x1) ||
2786                         !EQUIV(mwindow->edl->session->crop_x2, x2) ||
2787                         !EQUIV(mwindow->edl->session->crop_y1, y1) ||
2788                         !EQUIV(mwindow->edl->session->crop_y2, y2))
2789                 {
2790                         if (x1 > x2)
2791                         {
2792                                 float tmp = x1;
2793                                 x1 = x2;
2794                                 x2 = tmp;
2795                                 switch (gui->crop_handle)
2796                                 {
2797                                         case 0: gui->crop_handle = 1; break;
2798                                         case 1: gui->crop_handle = 0; break;
2799                                         case 2: gui->crop_handle = 3; break;
2800                                         case 3: gui->crop_handle = 2; break;
2801                                         default: break;
2802                                 }
2803                         }
2804
2805                         if (y1 > y2)
2806                         {
2807                                 float tmp = y1;
2808                                 y1 = y2;
2809                                 y2 = tmp;
2810                                 switch (gui->crop_handle)
2811                                 {
2812                                         case 0: gui->crop_handle = 2; break;
2813                                         case 1: gui->crop_handle = 3; break;
2814                                         case 2: gui->crop_handle = 0; break;
2815                                         case 3: gui->crop_handle = 1; break;
2816                                         default: break;
2817                                 }
2818                         }
2819
2820                         mwindow->edl->session->crop_x1 = (int)x1;
2821                         mwindow->edl->session->crop_y1 = (int)y1;
2822                         mwindow->edl->session->crop_x2 = (int)x2;
2823                         mwindow->edl->session->crop_y2 = (int)y2;
2824                         result = 1;
2825                         redraw = 1;
2826                 }
2827         }
2828         else
2829 // Update cursor font
2830         if(handle_selected >= 0)
2831         {
2832                 switch(handle_selected)
2833                 {
2834                         case 0:
2835                                 set_cursor(UPLEFT_RESIZE);
2836                                 break;
2837                         case 1:
2838                                 set_cursor(UPRIGHT_RESIZE);
2839                                 break;
2840                         case 2:
2841                                 set_cursor(DOWNLEFT_RESIZE);
2842                                 break;
2843                         case 3:
2844                                 set_cursor(DOWNRIGHT_RESIZE);
2845                                 break;
2846                 }
2847                 result = 1;
2848         }
2849         else
2850         {
2851                 set_cursor(ARROW_CURSOR);
2852         }
2853 #define CLAMP(x, y, z) ((x) = ((x) < (y) ? (y) : ((x) > (z) ? (z) : (x))))
2854
2855         if(redraw)
2856         {
2857                 CLAMP(mwindow->edl->session->crop_x1, 0, mwindow->edl->session->output_w);
2858                 CLAMP(mwindow->edl->session->crop_x2, 0, mwindow->edl->session->output_w);
2859                 CLAMP(mwindow->edl->session->crop_y1, 0, mwindow->edl->session->output_h);
2860                 CLAMP(mwindow->edl->session->crop_y2, 0, mwindow->edl->session->output_h);
2861 // printf("CWindowCanvas::test_crop %d %d %d %d\n",
2862 //      mwindow->edl->session->crop_x2,
2863 //      mwindow->edl->session->crop_y2,
2864 //      mwindow->edl->calculate_output_w(0),
2865 //      mwindow->edl->calculate_output_h(0));
2866         }
2867         return result;
2868 }
2869
2870
2871 void CWindowCanvas::draw_crop()
2872 {
2873         get_canvas()->set_inverse();
2874         get_canvas()->set_color(WHITE);
2875
2876         float x1 = mwindow->edl->session->crop_x1;
2877         float y1 = mwindow->edl->session->crop_y1;
2878         float x2 = mwindow->edl->session->crop_x2;
2879         float y2 = mwindow->edl->session->crop_y2;
2880
2881         output_to_canvas(mwindow->edl, 0, x1, y1);
2882         output_to_canvas(mwindow->edl, 0, x2, y2);
2883
2884         if(x2 - x1 && y2 - y1)
2885                 get_canvas()->draw_rectangle((int)x1,
2886                         (int)y1,
2887                         (int)(x2 - x1),
2888                         (int)(y2 - y1));
2889
2890         draw_crophandle((int)x1, (int)y1);
2891         draw_crophandle((int)x2 - CROPHANDLE_W, (int)y1);
2892         draw_crophandle((int)x1, (int)y2 - CROPHANDLE_H);
2893         draw_crophandle((int)x2 - CROPHANDLE_W, (int)y2 - CROPHANDLE_H);
2894         get_canvas()->set_opaque();
2895 }
2896
2897
2898 void CWindowCanvas::draw_outlines(int do_camera)
2899 {
2900         Track *track = gui->cwindow->calculate_affected_track();
2901
2902         if(!track) return;
2903
2904         float proj_x, proj_y, proj_z;
2905         int64_t position = track->to_units(
2906                 mwindow->edl->local_session->get_selectionstart(1),
2907                 0);
2908         track->automation->get_projector(&proj_x, &proj_y, &proj_z,
2909                                 position, PLAY_FORWARD);
2910
2911         proj_x += mwindow->edl->session->output_w/2.;
2912         proj_y += mwindow->edl->session->output_h/2.;
2913         float proj_x1 = proj_x - track->track_w/2. * proj_z;
2914         float proj_y1 = proj_y - track->track_h/2. * proj_z;
2915         float proj_x2 = proj_x + track->track_w/2. * proj_z;
2916         float proj_y2 = proj_y + track->track_h/2. * proj_z;
2917         float x1 = proj_x1, x2 = proj_x2;
2918         float y1 = proj_y1, y2 = proj_y2;
2919         output_to_canvas(mwindow->edl, 0, x1, y1);
2920         output_to_canvas(mwindow->edl, 0, x2, y2);
2921
2922 #define DRAW_PROJECTION(offset) \
2923         get_canvas()->draw_rectangle(x1+offset, y1+offset, (x2-x1), (y2-y1)); \
2924         get_canvas()->draw_line(x1+offset, y1+offset, x2+offset, y2+offset); \
2925         get_canvas()->draw_line(x2+offset, y1+offset, x1+offset, y2+offset); \
2926
2927 // Drop shadow
2928         get_canvas()->set_color(BLACK);
2929         DRAW_PROJECTION(1);
2930         get_canvas()->set_color(do_camera ? GREEN : RED);
2931         DRAW_PROJECTION(0);
2932
2933         if( do_camera ) {
2934                 float cam_x, cam_y, cam_z;
2935                 track->automation->get_camera(&cam_x, &cam_y, &cam_z,
2936                                         position, PLAY_FORWARD);
2937                 cam_x += track->track_w / 2.;
2938                 cam_y += track->track_h / 2.;
2939 // follow image, not camera
2940                 cam_x = -cam_x;  cam_y = -cam_y;  cam_z *= proj_z;
2941                 float cam_x1 = cam_x * cam_z + proj_x;
2942                 float cam_y1 = cam_y * cam_z + proj_y;
2943                 float cam_x2 = (cam_x + track->track_w) * cam_z + proj_x;
2944                 float cam_y2 = (cam_y + track->track_h) * cam_z + proj_y;
2945                 output_to_canvas(mwindow->edl, 0, cam_x1, cam_y1);
2946                 output_to_canvas(mwindow->edl, 0, cam_x2, cam_y2);
2947                 get_canvas()->set_color(YELLOW);
2948                 get_canvas()->draw_rectangle(cam_x1, cam_y1, cam_x2-cam_x1, cam_y2-cam_y1);
2949         }
2950 }
2951
2952 int CWindowCanvas::test_bezier(int button_press,
2953         int &redraw,
2954         int &redraw_canvas,
2955         int &rerender,
2956         int do_camera)
2957 {
2958         int result = 0;
2959
2960 // Processing drag operation.
2961 // Create keyframe during first cursor motion.
2962         if( !button_press ) {
2963
2964                 float cursor_x = get_cursor_x();
2965                 float cursor_y = get_cursor_y();
2966                 canvas_to_output(mwindow->edl, 0, cursor_x, cursor_y);
2967
2968                 if( gui->current_operation == CWINDOW_CAMERA ||
2969                     gui->current_operation == CWINDOW_PROJECTOR ) {
2970                         if( !gui->ctrl_down() && gui->shift_down() && !gui->translating_zoom ) {
2971                                 gui->translating_zoom = 1;
2972                                 gui->reset_affected();
2973                         }
2974                         else if( !gui->ctrl_down() && !gui->shift_down() && gui->translating_zoom ) {
2975                                 gui->translating_zoom = 0;
2976                                 gui->reset_affected();
2977                         }
2978
2979 // Get target keyframe
2980                         if( !gui->affected_x && !gui->affected_y && !gui->affected_z ) {
2981                                 if(!gui->affected_track) return 0;
2982                                 FloatAutos *affected_x_autos, *affected_y_autos, *affected_z_autos;
2983                                 FloatAutos** autos = (FloatAutos**) gui->affected_track->automation->autos;
2984                                 if( mwindow->edl->session->cwindow_operation == CWINDOW_CAMERA ) {
2985                                         affected_x_autos = autos[AUTOMATION_CAMERA_X];
2986                                         affected_y_autos = autos[AUTOMATION_CAMERA_Y];
2987                                         affected_z_autos = autos[AUTOMATION_CAMERA_Z];
2988                                 }
2989                                 else {
2990                                         affected_x_autos = autos[AUTOMATION_PROJECTOR_X];
2991                                         affected_y_autos = autos[AUTOMATION_PROJECTOR_Y];
2992                                         affected_z_autos = autos[AUTOMATION_PROJECTOR_Z];
2993                                 }
2994                                 double position = mwindow->edl->local_session->get_selectionstart(1);
2995                                 int64_t track_position = gui->affected_track->to_units(position, 0);
2996                                 FloatAuto *prev_x = 0, *next_x = 0;
2997                                 float new_x = affected_x_autos->get_value(track_position, PLAY_FORWARD, prev_x, next_x);
2998                                 FloatAuto *prev_y = 0, *next_y = 0;
2999                                 float new_y = affected_y_autos->get_value(track_position, PLAY_FORWARD, prev_y, next_y);
3000                                 FloatAuto *prev_z = 0, *next_z = 0;
3001                                 float new_z = affected_z_autos->get_value(track_position, PLAY_FORWARD, prev_z, next_z);
3002                                 int zooming = gui->translating_zoom, created;
3003                                 gui->affected_x = (FloatAuto*)gui->cwindow->calculate_affected_auto(
3004                                                         affected_x_autos, !zooming, &created, 0);
3005                                 if( created ) {
3006                                         gui->affected_x->set_value(new_x);
3007                                         redraw_canvas = 1;
3008                                 }
3009                                 gui->affected_y = (FloatAuto*)gui->cwindow->calculate_affected_auto(
3010                                                         affected_y_autos, !zooming, &created, 0);
3011                                 if( created ) {
3012                                         gui->affected_y->set_value(new_y);
3013                                         redraw_canvas = 1;
3014                                 }
3015                                 gui->affected_z = (FloatAuto*)gui->cwindow->calculate_affected_auto(
3016                                                         affected_z_autos, zooming, &created, 0);
3017                                 if( created ) {
3018                                         gui->affected_z->set_value(new_z);
3019                                         redraw_canvas = 1;
3020                                 }
3021                                 calculate_origin();
3022
3023                                 if( gui->translating_zoom ) {
3024                                         gui->center_z = gui->affected_z->get_value();
3025                                 }
3026                                 else {
3027                                         gui->center_x = gui->affected_x->get_value();
3028                                         gui->center_y = gui->affected_y->get_value();
3029                                 }
3030
3031                                 rerender = 1;
3032                                 redraw = 1;
3033                         }
3034
3035                         float x_val = gui->affected_x->get_value();
3036                         float y_val = gui->affected_y->get_value();
3037                         float z_val = gui->affected_z->get_value();
3038
3039                         if( gui->translating_zoom ) {
3040                                 float z = gui->center_z + (cursor_y - gui->y_origin) / 128;
3041                                 if( z < 0 ) z = 0;
3042                                 if( !EQUIV(z_val, z) ) {
3043                                         rerender = 1;
3044                                         redraw = 1;
3045                                         redraw_canvas = 1;
3046                                 }
3047                                 gui->affected_z->set_value(z);
3048                         }
3049                         else {
3050                                 float dx = cursor_x - gui->x_origin;
3051                                 float dy = cursor_y - gui->y_origin;
3052 // follow image, not camera
3053                                 if( gui->current_operation == CWINDOW_CAMERA ) {
3054                                         dx = -dx / z_val;  dy = -dy / z_val;
3055                                 }
3056                                 float x = gui->center_x + dx;
3057                                 float y = gui->center_y + dy;
3058                                 gui->affected_x->set_value(x);
3059                                 gui->affected_y->set_value(y);
3060                                 if( !EQUIV(x_val, x) || !EQUIV(y_val, y) ) {
3061                                         rerender = 1;
3062                                         redraw = 1;
3063                                         redraw_canvas = 1;
3064                                 }
3065                         }
3066                 }
3067
3068                 result = 1;
3069         }
3070         else
3071 // Begin drag operation.  Don't create keyframe here.
3072         {
3073 // Get affected track off of the first recordable video track.
3074 // Calculating based on the alpha channel would require recording what layer
3075 // each output pixel belongs to as they're rendered and stacked.  Forget it.
3076                 gui->affected_track = gui->cwindow->calculate_affected_track();
3077                 gui->reset_affected();
3078
3079                 if(gui->affected_track)
3080                 {
3081                         if( do_camera )
3082                                 mwindow->undo->update_undo_before(_("camera"), this);
3083                         else
3084                                 mwindow->undo->update_undo_before(_("projector"), this);
3085
3086                         gui->current_operation =
3087                                 mwindow->edl->session->cwindow_operation;
3088                         gui->tool_panel->raise_window();
3089                         result = 1;
3090                 }
3091         }
3092
3093         return result;
3094 }
3095
3096
3097 int CWindowCanvas::test_zoom(int &redraw)
3098 {
3099         int result = 0;
3100         float x, y;
3101         float zoom = 0;
3102
3103         if( mwindow->edl->session->cwindow_scrollbars ) {
3104                 if( *gui->zoom_panel->get_text() != 'x' ) {
3105 // Find current zoom in table
3106                         int idx = total_zooms;  float old_zoom = get_zoom();
3107                         while( --idx >= 0 && !EQUIV(my_zoom_table[idx], old_zoom) );
3108                         if( idx >= 0 ) {
3109                                 idx += get_buttonpress() == 5 ||
3110                                          gui->ctrl_down() || gui->shift_down() ?  -1 : +1 ;
3111                                 CLAMP(idx, 0, total_zooms-1);
3112                                 zoom = my_zoom_table[idx];
3113                         }
3114                 }
3115                 x = get_cursor_x();  y = get_cursor_y();
3116                 if( !zoom ) {
3117                         mwindow->edl->session->cwindow_scrollbars = 0;
3118                         gui->zoom_panel->update(0);
3119                         zoom = gui->get_auto_zoom();
3120                 }
3121                 else {
3122                         gui->zoom_panel->ZoomPanel::update(zoom);
3123                         float output_x = x, output_y = y;
3124                         canvas_to_output(mwindow->edl, 0, output_x, output_y);
3125                         x = output_x - x / zoom;
3126                         y = output_y - y / zoom;
3127                 }
3128         }
3129         else {
3130                 mwindow->edl->session->cwindow_scrollbars = 1;
3131                 x = (mwindow->edl->session->output_w - w) / 2;
3132                 y = (mwindow->edl->session->output_h - h) / 2;
3133                 zoom = 1;
3134         }
3135         update_zoom((int)x, (int)y, zoom);
3136
3137         gui->composite_panel->cpanel_zoom->update(zoom);
3138
3139         reposition_window(mwindow->edl,
3140                         mwindow->theme->ccanvas_x, mwindow->theme->ccanvas_y,
3141                         mwindow->theme->ccanvas_w, mwindow->theme->ccanvas_h);
3142         redraw = 1;  result = 1;
3143
3144         return result;
3145 }
3146
3147
3148 void CWindowCanvas::calculate_origin()
3149 {
3150         gui->x_origin = get_cursor_x();
3151         gui->y_origin = get_cursor_y();
3152 //printf("CWindowCanvas::calculate_origin 1 %f %f\n", gui->x_origin, gui->y_origin);
3153         canvas_to_output(mwindow->edl, 0, gui->x_origin, gui->y_origin);
3154 //printf("CWindowCanvas::calculate_origin 2 %f %f\n", gui->x_origin, gui->y_origin);
3155 }
3156
3157
3158 int CWindowCanvas::cursor_leave_event()
3159 {
3160         set_cursor(ARROW_CURSOR);
3161         return 1;
3162 }
3163
3164 int CWindowCanvas::cursor_enter_event()
3165 {
3166         int redraw = 0;
3167         switch(mwindow->edl->session->cwindow_operation)
3168         {
3169                 case CWINDOW_CAMERA:
3170                 case CWINDOW_PROJECTOR:
3171                         set_cursor(MOVE_CURSOR);
3172                         break;
3173                 case CWINDOW_ZOOM:
3174                         set_cursor(MOVE_CURSOR);
3175                         break;
3176                 case CWINDOW_CROP:
3177                         test_crop(0, redraw);
3178                         break;
3179                 case CWINDOW_PROTECT:
3180                         set_cursor(ARROW_CURSOR);
3181                         break;
3182                 case CWINDOW_MASK:
3183                 case CWINDOW_RULER:
3184                         set_cursor(CROSS_CURSOR);
3185                         break;
3186                 case CWINDOW_EYEDROP:
3187                         set_cursor(CROSS_CURSOR);
3188                         break;
3189         }
3190         return 1;
3191 }
3192
3193 int CWindowCanvas::cursor_motion_event()
3194 {
3195         int redraw = 0, result = 0, rerender = 0, redraw_canvas = 0;
3196
3197
3198 //printf("CWindowCanvas::cursor_motion_event %d current_operation=%d\n", __LINE__, gui->current_operation);
3199         switch(gui->current_operation)
3200         {
3201                 case CWINDOW_SCROLL:
3202                 {
3203                         float zoom = get_zoom();
3204                         float cursor_x = get_cursor_x();
3205                         float cursor_y = get_cursor_y();
3206
3207                         float zoom_x, zoom_y, conformed_w, conformed_h;
3208                         get_zooms(mwindow->edl, 0, zoom_x, zoom_y, conformed_w, conformed_h);
3209                         cursor_x = (float)cursor_x / zoom_x + gui->x_offset;
3210                         cursor_y = (float)cursor_y / zoom_y + gui->y_offset;
3211
3212
3213
3214                         int x = (int)(gui->x_origin - cursor_x + gui->x_offset);
3215                         int y = (int)(gui->y_origin - cursor_y + gui->y_offset);
3216
3217                         update_zoom(x,
3218                                 y,
3219                                 zoom);
3220                         update_scrollbars(0);
3221                         redraw = 1;
3222                         result = 1;
3223                         break;
3224                 }
3225
3226                 case CWINDOW_RULER:
3227                         result = do_ruler(0, 1, 0, 0);
3228                         break;
3229
3230                 case CWINDOW_CAMERA:
3231                         result = test_bezier(0, redraw, redraw_canvas, rerender, 1);
3232                         break;
3233
3234                 case CWINDOW_PROJECTOR:
3235                         result = test_bezier(0, redraw, redraw_canvas, rerender, 0);
3236                         break;
3237
3238
3239                 case CWINDOW_CROP:
3240                         result = test_crop(0, redraw);
3241 // printf("CWindowCanvas::cursor_motion_event %d result=%d redraw=%d\n",
3242 // __LINE__,
3243 // result,
3244 // redraw);
3245                         break;
3246
3247                 case CWINDOW_MASK:
3248                 case CWINDOW_MASK_CONTROL_IN:
3249                 case CWINDOW_MASK_CONTROL_OUT:
3250                 case CWINDOW_MASK_TRANSLATE:
3251
3252                         result = do_mask(redraw,
3253                                 rerender,
3254                                 0,
3255                                 1,
3256                                 0);
3257                         break;
3258
3259                 case CWINDOW_EYEDROP:
3260                         result = do_eyedrop(rerender, 0, 0);
3261                         break;
3262
3263                 default:
3264                         break;
3265
3266         }
3267
3268
3269 // cursor font changes
3270         if(!result)
3271         {
3272 // printf("CWindowCanvas::cursor_motion_event %d cwindow_operation=%d\n",
3273 // __LINE__,
3274 // mwindow->edl->session->cwindow_operation);
3275                 switch(mwindow->edl->session->cwindow_operation)
3276                 {
3277                         case CWINDOW_CROP:
3278                                 result = test_crop(0, redraw);
3279                                 break;
3280                         case CWINDOW_RULER:
3281                                 result = do_ruler(0, 1, 0, 0);
3282                                 break;
3283                         case CWINDOW_MASK:
3284                                 result = do_mask(redraw,
3285                                         rerender,
3286                                         0,
3287                                         1,
3288                                         0);
3289                                         break;
3290                 }
3291         }
3292
3293         int change_type = rerender ? CHANGE_PARAMS : -1;
3294         gui->sync_parameters(change_type, redraw, redraw_canvas);
3295
3296         return result;
3297 }
3298
3299 int CWindowCanvas::button_press_event()
3300 {
3301         int result = 0;
3302         int redraw = 0;
3303         int redraw_canvas = 0;
3304         int rerender = 0;
3305
3306         if(Canvas::button_press_event()) return 1;
3307
3308         gui->translating_zoom = gui->shift_down();
3309
3310         calculate_origin();
3311 //printf("CWindowCanvas::button_press_event 2 %f %f\n", gui->x_origin, gui->y_origin, gui->x_origin, gui->y_origin);
3312
3313         float zoom_x, zoom_y, conformed_w, conformed_h;
3314         get_zooms(mwindow->edl, 0, zoom_x, zoom_y, conformed_w, conformed_h);
3315         gui->x_offset = get_x_offset(mwindow->edl, 0, zoom_x, conformed_w, conformed_h);
3316         gui->y_offset = get_y_offset(mwindow->edl, 0, zoom_y, conformed_w, conformed_h);
3317
3318 // Scroll view
3319         if( mwindow->edl->session->cwindow_operation != CWINDOW_PROTECT &&
3320             get_buttonpress() == MIDDLE_BUTTON && !get_canvas()->shift_down() )
3321         {
3322                 gui->current_operation = CWINDOW_SCROLL;
3323                 result = 1;
3324         }
3325         else
3326 // Adjust parameter
3327         {
3328                 switch(mwindow->edl->session->cwindow_operation)
3329                 {
3330                         case CWINDOW_RULER:
3331                                 result = do_ruler(0, 0, 1, 0);
3332                                 break;
3333
3334                         case CWINDOW_CAMERA:
3335                                 result = test_bezier(1, redraw, redraw_canvas, rerender, 1);
3336                                 break;
3337
3338                         case CWINDOW_PROJECTOR:
3339                                 result = test_bezier(1, redraw, redraw_canvas, rerender, 0);
3340                                 break;
3341
3342                         case CWINDOW_ZOOM:
3343                                 result = test_zoom(redraw);
3344                                 break;
3345
3346                         case CWINDOW_CROP:
3347                                 result = test_crop(1, redraw);
3348                                 break;
3349
3350                         case CWINDOW_MASK:
3351                                 switch( get_buttonpress() ) {
3352                                 case LEFT_BUTTON:
3353                                         result = do_mask(redraw, rerender, 1, 0, 0);
3354                                         break;
3355                                 case MIDDLE_BUTTON: {  // && shift_down()
3356                                         result = do_mask_focus();
3357                                         redraw = 1;
3358                                         redraw_canvas = 1;
3359                                         break; }
3360                                 case WHEEL_UP:
3361                                 case WHEEL_DOWN:
3362                                         result = do_mask(redraw, rerender, 1, 1, 0);
3363                                         break;
3364                                 }
3365                                 if( result ) redraw_canvas = 1;
3366                                 break;
3367
3368                         case CWINDOW_EYEDROP:
3369                                 result = do_eyedrop(rerender, 1, 0);
3370                                 break;
3371                 }
3372         }
3373
3374         int change_type = rerender ? CHANGE_PARAMS : -1;
3375         gui->sync_parameters(change_type, redraw, redraw_canvas);
3376
3377         return result;
3378 }
3379
3380 int CWindowCanvas::button_release_event()
3381 {
3382         int result = 0;
3383         const char *undo_label = 0;
3384
3385         switch(gui->current_operation)
3386         {
3387                 case CWINDOW_SCROLL:
3388                         result = 1;
3389                         break;
3390
3391                 case CWINDOW_RULER:
3392                         do_ruler(0, 0, 0, 1);
3393                         break;
3394
3395                 case CWINDOW_CAMERA:
3396                         undo_label = _("camera");
3397                         break;
3398
3399                 case CWINDOW_PROJECTOR:
3400                         undo_label = _("projector");
3401                         break;
3402
3403                 case CWINDOW_MASK:
3404                 case CWINDOW_MASK_CONTROL_IN:
3405                 case CWINDOW_MASK_CONTROL_OUT:
3406                 case CWINDOW_MASK_TRANSLATE:
3407 // Finish mask operation
3408                         gui->mask_keyframe = 0;
3409                         undo_label = _("mask");
3410                         break;
3411                 case CWINDOW_MASK_ROTATE:
3412                         gui->mask_keyframe = 0;
3413                         undo_label = _("mask rotate");
3414                         break;
3415                 case CWINDOW_MASK_SCALE:
3416                         gui->mask_keyframe = 0;
3417                         undo_label = _("mask scale");
3418                         break;
3419                 case CWINDOW_NONE:
3420                         result = Canvas::button_release_event();
3421                         break;
3422         }
3423
3424         if( undo_label )
3425                 mwindow->undo->update_undo_after(undo_label, LOAD_AUTOMATION);
3426         gui->current_operation = CWINDOW_NONE;
3427         return result;
3428 }
3429
3430 void CWindowCanvas::zoom_resize_window(float percentage)
3431 {
3432         int canvas_w, canvas_h;
3433         int new_w, new_h;
3434
3435
3436 // Get required canvas size
3437         calculate_sizes(mwindow->edl->get_aspect_ratio(),
3438                 mwindow->edl->session->output_w,
3439                 mwindow->edl->session->output_h,
3440                 percentage,
3441                 canvas_w,
3442                 canvas_h);
3443
3444 // Estimate window size from current borders
3445         new_w = canvas_w + (gui->get_w() - mwindow->theme->ccanvas_w);
3446         new_h = canvas_h + (gui->get_h() - mwindow->theme->ccanvas_h);
3447
3448 //printf("CWindowCanvas::zoom_resize_window %d %d %d\n", __LINE__, new_w, new_h);
3449         mwindow->session->cwindow_w = new_w;
3450         mwindow->session->cwindow_h = new_h;
3451
3452         mwindow->theme->get_cwindow_sizes(gui,
3453                 mwindow->session->cwindow_controls);
3454
3455 // Estimate again from new borders
3456         new_w = canvas_w + (mwindow->session->cwindow_w - mwindow->theme->ccanvas_w);
3457         new_h = canvas_h + (mwindow->session->cwindow_h - mwindow->theme->ccanvas_h);
3458 //printf("CWindowCanvas::zoom_resize_window %d %d %d\n", __LINE__, new_w, new_h);
3459
3460         gui->resize_window(new_w, new_h);
3461         gui->resize_event(new_w, new_h);
3462 }
3463
3464 void CWindowCanvas::toggle_controls()
3465 {
3466         mwindow->session->cwindow_controls = !mwindow->session->cwindow_controls;
3467         gui->resize_event(gui->get_w(), gui->get_h());
3468 }
3469
3470 int CWindowCanvas::get_cwindow_controls()
3471 {
3472         return mwindow->session->cwindow_controls;
3473 }
3474
3475
3476