cinelerra-5.1/cinelerra/canvas.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 2008-2017 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 "bcsignals.h"
  23 #include "canvas.h"
  24 #include "clip.h"
  25 #include "edl.h"
  26 #include "edlsession.h"
  27 #include "keys.h"
  28 #include "language.h"
  29 #include "mainsession.h"
  30 #include "mwindowgui.h"
  31 #include "mutex.h"
  32 #include "mwindow.h"
  33 #include "playback3d.h"
  34 #include "videodevice.h"
  35 #include "vframe.h"
  36
  37
  38
  39 Canvas::Canvas(MWindow *mwindow, BC_WindowBase *subwindow,
  40         int x, int y, int w, int h, int output_w, int output_h,
  41         int use_scrollbars)
  42 {
  43         reset();
  44
  45         int xs10 = xS(10), ys10 = yS(10);
  46         if(w < xs10) w = xs10;
  47         if(h < ys10) h = ys10;
  48         this->mwindow = mwindow;
  49         this->subwindow = subwindow;
  50         this->x = x;
  51         this->y = y;
  52         this->w = w;
  53         this->h = h;
  54         this->output_w = output_w;
  55         this->output_h = output_h;
  56         this->use_scrollbars = use_scrollbars;
  57         this->canvas_auxwindow = 0;
  58         this->scr_w0 = subwindow->get_screen_w(0, 0);
  59         this->root_w = subwindow->get_root_w(0);
  60         this->root_h = subwindow->get_root_h(0);
  61         canvas_lock = new Condition(1, "Canvas::canvas_lock", 1);
  62 }
  63
  64 Canvas::~Canvas()
  65 {
  66         if(refresh_frame) delete refresh_frame;
  67         delete canvas_menu;
  68         if(yscroll) delete yscroll;
  69         if(xscroll) delete xscroll;
  70         delete canvas_subwindow;
  71         delete canvas_fullscreen;
  72         delete canvas_lock;
  73 }
  74
  75 void Canvas::reset()
  76 {
  77         use_scrollbars = 0;
  78         output_w = 0;
  79         output_h = 0;
  80         xscroll = 0;
  81         yscroll = 0;
  82         refresh_frame = 0;
  83         canvas_subwindow = 0;
  84         canvas_fullscreen = 0;
  85         is_processing = 0;
  86         is_fullscreen = 0;
  87         cursor_inside = 0;
  88 }
  89
  90 BC_WindowBase *Canvas::lock_canvas(const char *loc)
  91 {
  92         canvas_lock->lock(loc);
  93         BC_WindowBase *wdw = get_canvas();
  94         if( wdw ) wdw->lock_window(loc);
  95         return wdw;
  96 }
  97
  98 void Canvas::unlock_canvas()
  99 {
 100         BC_WindowBase *wdw = get_canvas();
 101         if( wdw ) wdw->unlock_window();
 102         canvas_lock->unlock();
 103 }
 104
 105 BC_WindowBase* Canvas::get_canvas()
 106 {
 107         if(get_fullscreen() && canvas_fullscreen)
 108                 return canvas_fullscreen;
 109         return canvas_auxwindow ? canvas_auxwindow : canvas_subwindow;
 110 }
 111
 112 void Canvas::use_auxwindow(BC_WindowBase *aux)
 113 {
 114         canvas_auxwindow = aux;
 115 }
 116
 117 void Canvas::use_cwindow()
 118 {
 119         canvas_menu->use_cwindow();
 120         fullscreen_menu->use_cwindow();
 121 }
 122
 123 void Canvas::use_rwindow()
 124 {
 125         canvas_menu->use_rwindow();
 126 }
 127
 128 void Canvas::use_vwindow()
 129 {
 130         canvas_menu->use_vwindow();
 131 }
 132
 133 int Canvas::get_fullscreen()
 134 {
 135         return is_fullscreen;
 136 }
 137
 138 // Get dimensions given a zoom
 139 void Canvas::calculate_sizes(float aspect_ratio,
 140                 int output_w, int output_h, float zoom,
 141                 int &w, int &h)
 142 {
 143 // Horizontal stretch
 144         if( (float)output_w/output_h <= aspect_ratio ) {
 145                 w = (float)output_h * aspect_ratio * zoom;
 146                 h = (float)output_h * zoom;
 147         }
 148         else {
 149 // Vertical stretch
 150                 h = (float)output_w / aspect_ratio * zoom;
 151                 w = (float)output_w * zoom;
 152         }
 153 }
 154
 155 float Canvas::get_x_offset(EDL *edl, int single_channel,
 156                 float zoom_x, float conformed_w, float conformed_h)
 157 {
 158         if( use_scrollbars ) return get_xscroll();
 159         int canvas_w = get_canvas()->get_w(), out_w = canvas_w;
 160         int canvas_h = get_canvas()->get_h(), out_h = canvas_h;
 161         float conformed_ratio = conformed_w/conformed_h;
 162         if( (float)out_w/out_h > conformed_ratio )
 163                 out_w = out_h * conformed_ratio + 0.5f;
 164         float ret = out_w >= canvas_w ? 0 : -0.5f*(canvas_w - out_w) / zoom_x;
 165         return ret;
 166 }
 167
 168 float Canvas::get_y_offset(EDL *edl, int single_channel,
 169                 float zoom_y, float conformed_w, float conformed_h)
 170 {
 171         if( use_scrollbars ) return get_yscroll();
 172         int canvas_w = get_canvas()->get_w(), out_w = canvas_w;
 173         int canvas_h = get_canvas()->get_h(), out_h = canvas_h;
 174         float conformed_ratio = conformed_w/conformed_h;
 175         if( (float)out_w/out_h <= conformed_ratio )
 176                 out_h = out_w / conformed_ratio + 0.5f;
 177         float ret = out_h >= canvas_h ? 0 : -0.5f*(canvas_h - out_h) / zoom_y;
 178         return ret;
 179 }
 180
 181 // This may not be used anymore
 182 void Canvas::check_boundaries(EDL *edl, int &x, int &y, float &zoom)
 183 {
 184         if(x + w_visible > w_needed) x = w_needed - w_visible;
 185         if(y + h_visible > h_needed) y = h_needed - h_visible;
 186
 187         if(x < 0) x = 0;
 188         if(y < 0) y = 0;
 189 }
 190
 191 void Canvas::update_scrollbars(EDL *edl, int flush)
 192 {
 193         if( edl )
 194                 get_scrollbars(edl);
 195         if( use_scrollbars ) {
 196                 if( xscroll ) xscroll->update_length(w_needed, get_xscroll(), w_visible, flush);
 197                 if( yscroll ) yscroll->update_length(h_needed, get_yscroll(), h_visible, flush);
 198         }
 199 }
 200
 201 float Canvas::get_auto_zoom(EDL *edl)
 202 {
 203         float conformed_w, conformed_h;
 204         edl->calculate_conformed_dimensions(0, conformed_w, conformed_h);
 205         BC_WindowBase *window = get_canvas();
 206         int window_w = window ? window->get_w() : w;
 207         int window_h = window ? window->get_h() : h;
 208         float zoom_x = window_w / conformed_w;
 209         float zoom_y = window_h / conformed_h;
 210         return zoom_x < zoom_y ? zoom_x : zoom_y;
 211 }
 212 void Canvas::zoom_auto()
 213 {
 214         use_scrollbars = 0;
 215 }
 216
 217 void Canvas::get_zooms(EDL *edl, int single_channel,
 218                 float &zoom_x, float &zoom_y,
 219                 float &conformed_w, float &conformed_h)
 220 {
 221         edl->calculate_conformed_dimensions(single_channel,
 222                         conformed_w, conformed_h);
 223
 224         float zoom = get_zoom();
 225         if( !use_scrollbars || !zoom ) zoom = get_auto_zoom(edl);
 226         zoom_x = zoom * conformed_w / get_output_w(edl);
 227         zoom_y = zoom * conformed_h / get_output_h(edl);
 228 }
 229
 230 void Canvas::set_zoom(EDL *edl, float zoom)
 231 {
 232         BC_WindowBase *window = get_canvas();
 233         int cw = window ? window->get_w() : w;
 234         int ch = window ? window->get_h() : h;
 235         float cx = 0.5f * cw, cy = 0.5f * ch;
 236         set_zoom(edl, zoom, cx, cy);
 237 }
 238
 239 void Canvas::set_zoom(EDL *edl, float zoom, float cx, float cy)
 240 {
 241         float output_x = cx, output_y = cy;
 242         canvas_to_output(edl, 0, output_x, output_y);
 243         update_zoom(0, 0, zoom);
 244         float zoom_x, zoom_y, conformed_w, conformed_h;
 245         get_zooms(edl, 0, zoom_x, zoom_y, conformed_w, conformed_h);
 246         if( zoom ) {
 247                 output_x -= cx / zoom_x;
 248                 output_y -= cy / zoom_y;
 249         }
 250         else {
 251                 output_x = get_x_offset(edl, 0, zoom_x, conformed_w, conformed_h);
 252                 output_y = get_y_offset(edl, 0, zoom_y, conformed_w, conformed_h);
 253         }
 254         update_zoom(output_x, output_y, zoom);
 255 }
 256
 257
 258 // Convert a coordinate on the canvas to a coordinate on the output
 259 void Canvas::canvas_to_output(EDL *edl, int single_channel, float &x, float &y)
 260 {
 261         float zoom_x, zoom_y, conformed_w, conformed_h;
 262         get_zooms(edl, single_channel, zoom_x, zoom_y, conformed_w, conformed_h);
 263
 264 //printf("Canvas::canvas_to_output y=%f zoom_y=%f y_offset=%f\n",
 265 //      y, zoom_y, get_y_offset(edl, single_channel, zoom_y, conformed_w, conformed_h));
 266
 267         x = (float)x / zoom_x + get_x_offset(edl, single_channel, zoom_x, conformed_w, conformed_h);
 268         y = (float)y / zoom_y + get_y_offset(edl, single_channel, zoom_y, conformed_w, conformed_h);
 269 }
 270
 271 void Canvas::output_to_canvas(EDL *edl, int single_channel, float &x, float &y)
 272 {
 273         float zoom_x, zoom_y, conformed_w, conformed_h;
 274         get_zooms(edl, single_channel, zoom_x, zoom_y, conformed_w, conformed_h);
 275
 276 //printf("Canvas::output_to_canvas x=%f zoom_x=%f x_offset=%f\n", x, zoom_x, get_x_offset(edl, single_channel, zoom_x, conformed_w));
 277
 278         x = (float)zoom_x * (x - get_x_offset(edl, single_channel, zoom_x, conformed_w, conformed_h));
 279         y = (float)zoom_y * (y - get_y_offset(edl, single_channel, zoom_y, conformed_w, conformed_h));
 280 }
 281
 282
 283
 284 void Canvas::get_transfers(EDL *edl,
 285         float &output_x1, float &output_y1, float &output_x2, float &output_y2,
 286         float &canvas_x1, float &canvas_y1, float &canvas_x2, float &canvas_y2,
 287         int canvas_w, int canvas_h)
 288 {
 289 //printf("Canvas::get_transfers %d canvas_w=%d canvas_h=%d\n",
 290 // __LINE__,  canvas_w, canvas_h);
 291 // automatic canvas size detection
 292         if( canvas_w < 0 ) canvas_w = get_canvas()->get_w();
 293         if( canvas_h < 0 ) canvas_h = get_canvas()->get_h();
 294
 295         float in_x1, in_y1, in_x2, in_y2;
 296         float out_x1, out_y1, out_x2, out_y2;
 297         float zoom_x, zoom_y, conformed_w, conformed_h;
 298
 299         get_zooms(edl, 0, zoom_x, zoom_y, conformed_w, conformed_h);
 300         out_x1 = 0;  out_x2 = canvas_w;
 301         out_y1 = 0;  out_y2 = canvas_h;
 302         in_x1 = 0;   in_x2  = canvas_w;
 303         in_y1 = 0;   in_y2  = canvas_h;
 304         canvas_to_output(edl, 0, in_x1, in_y1);
 305         canvas_to_output(edl, 0, in_x2, in_y2);
 306
 307         if( in_x1 < 0 ) {
 308                 out_x1 += -in_x1 * zoom_x;
 309                 in_x1 = 0;
 310         }
 311
 312         if( in_y1 < 0 ) {
 313                 out_y1 += -in_y1 * zoom_y;
 314                 in_y1 = 0;
 315         }
 316
 317         int output_w = get_output_w(edl);
 318         int output_h = get_output_h(edl);
 319         if( in_x2 > output_w ) {
 320                 out_x2 -= (in_x2 - output_w) * zoom_x;
 321                 in_x2 = output_w;
 322         }
 323
 324         if( in_y2 > output_h ) {
 325                 out_y2 -= (in_y2 - output_h) * zoom_y;
 326                 in_y2 = output_h;
 327         }
 328
 329         output_x1 = in_x1;   output_x2 = in_x2;
 330         output_y1 = in_y1;   output_y2 = in_y2;
 331         canvas_x1 = out_x1;  canvas_x2 = out_x2;
 332         canvas_y1 = out_y1;  canvas_y2 = out_y2;
 333
 334 // Clamp to minimum value
 335         if( output_x1 < 0 ) output_x1 = 0;
 336         if( output_x2 < output_x1 ) output_x2 = output_x1;
 337         if( canvas_x1 < 0 ) canvas_x1 = 0;
 338         if( canvas_x2 < canvas_x1 ) canvas_x2 = canvas_x1;
 339 // printf("Canvas::get_transfers %d %f,%f %f,%f -> %f,%f %f,%f\n", __LINE__,
 340 //  output_x1, output_y1, output_x2, output_y2,
 341 //  canvas_x1, canvas_y1, canvas_x2, canvas_y2);
 342 }
 343
 344 int Canvas::scrollbars_exist()
 345 {
 346         return use_scrollbars && (xscroll || yscroll);
 347 }
 348
 349 int Canvas::get_output_w(EDL *edl)
 350 {
 351         return edl->session->output_w;
 352 }
 353
 354 int Canvas::get_output_h(EDL *edl)
 355 {
 356         return edl->session->output_h;
 357 }
 358
 359
 360 int Canvas::get_scrollbars(EDL *edl)
 361 {
 362         int ret = 0;
 363         BC_WindowBase *window = get_canvas();
 364         if( !window ) use_scrollbars = 0;
 365         int canvas_w = w, canvas_h = h;
 366
 367         w_needed = w_visible = edl ? edl->session->output_w : view_w;
 368         h_needed = h_visible = edl ? edl->session->output_h : view_h;
 369
 370         int need_xscroll = 0, need_yscroll = 0;
 371         if( edl && use_scrollbars ) {
 372                 float zoom_x, zoom_y, conformed_w, conformed_h;
 373                 get_zooms(edl, 0, zoom_x, zoom_y, conformed_w, conformed_h);
 374                 w_visible = canvas_w / zoom_x;
 375                 h_visible = canvas_h / zoom_y;
 376                 float output_x = 0, output_y = 0;
 377                 output_to_canvas(edl, 0, output_x, output_y);
 378                 if( output_x < 0 ) need_xscroll = 1;
 379                 if( output_y < 0 ) need_yscroll = 1;
 380                 output_x = w_needed, output_y = h_needed;
 381                 output_to_canvas(edl, 0, output_x, output_y);
 382                 if( output_x > canvas_w ) need_xscroll = 1;
 383                 if( output_y > canvas_h ) need_yscroll = 1;
 384                 if( need_xscroll ) {
 385                         canvas_h -= BC_ScrollBar::get_span(SCROLL_HORIZ);
 386                         h_visible = canvas_h / zoom_y;
 387                 }
 388                 if( need_yscroll ) {
 389                         canvas_w -= BC_ScrollBar::get_span(SCROLL_VERT);
 390                         w_visible = canvas_w / zoom_x;
 391                 }
 392                 view_w = canvas_w;
 393                 view_h = canvas_h;
 394         }
 395
 396         if( need_xscroll ) {
 397                 if( !xscroll ) {
 398                         xscroll = new CanvasXScroll(edl, this, view_x, view_y + view_h,
 399                                         w_needed, get_xscroll(), w_visible, view_w);
 400                         subwindow->add_subwindow(xscroll);
 401                         xscroll->show_window(0);
 402                 }
 403                 else
 404                         xscroll->reposition_window(view_x, view_y + view_h, view_w);
 405
 406                 if( xscroll->get_length() != w_needed ||
 407                     xscroll->get_handlelength() != w_visible )
 408                         xscroll->update_length(w_needed, get_xscroll(), w_visible, 0);
 409                 ret = 1;
 410         }
 411         else if( xscroll ) {
 412                 delete xscroll;  xscroll = 0;
 413                 ret = 1;
 414         }
 415
 416         if( need_yscroll ) {
 417                 if( !yscroll ) {
 418                         yscroll = new CanvasYScroll(edl, this, view_x + view_w, view_y,
 419                                         h_needed, get_yscroll(), h_visible, view_h);
 420                         subwindow->add_subwindow(yscroll);
 421                         yscroll->show_window(0);
 422                 }
 423                 else
 424                         yscroll->reposition_window(view_x + view_w, view_y, view_h);
 425
 426                 if( yscroll->get_length() != edl->session->output_h ||
 427                     yscroll->get_handlelength() != h_visible )
 428                         yscroll->update_length(h_needed, get_yscroll(), h_visible, 0);
 429                 ret = 1;
 430         }
 431         else if( yscroll ) {
 432                 delete yscroll;  yscroll = 0;
 433                 ret = 1;
 434         }
 435         return ret;
 436 }
 437
 438
 439 void Canvas::update_geometry(EDL *edl, int x, int y, int w, int h)
 440 {
 441         int redraw = 0;
 442         if( this->x != x || this->y != y ||
 443             this->w != w || this->h != h )
 444                 redraw = 1;
 445         if( !redraw )
 446                 redraw = get_scrollbars(edl);
 447         if( redraw )
 448                 reposition_window(edl, x, y, w, h);
 449 }
 450
 451 void Canvas::reposition_window(EDL *edl, int x, int y, int w, int h)
 452 {
 453         this->x = view_x = x;  this->y = view_y = y;
 454         this->w = view_w = w;  this->h = view_h = h;
 455 //printf("Canvas::reposition_window 1\n");
 456         get_scrollbars(edl);
 457 //printf("Canvas::reposition_window %d %d %d %d\n", view_x, view_y, view_w, view_h);
 458         if( canvas_subwindow ) {
 459                 canvas_subwindow->reposition_window(view_x, view_y, view_w, view_h);
 460
 461 // Need to clear out the garbage in the back
 462                 if( canvas_subwindow->get_video_on() )
 463                         clear_borders(edl);
 464         }
 465         refresh(0);
 466 }
 467
 468 // must hold window lock
 469 int Canvas::refresh(int flush)
 470 {
 471         BC_WindowBase *window = get_canvas();
 472         if( !window ) return 0;
 473 // relock in lock order to prevent deadlock
 474         window->unlock_window();
 475         lock_canvas("Canvas::refresh");
 476         draw_refresh(flush);
 477         canvas_lock->unlock();
 478         return 1;
 479 }
 480 // must not hold locks
 481 int Canvas::redraw(int flush)
 482 {
 483         lock_canvas("Canvas::redraw");
 484         draw_refresh(flush);
 485         unlock_canvas();
 486         return 1;
 487 }
 488
 489 void Canvas::set_cursor(int cursor)
 490 {
 491         get_canvas()->set_cursor(cursor, 0, 1);
 492 }
 493
 494 int Canvas::get_cursor_x()
 495 {
 496         return get_canvas()->get_cursor_x();
 497 }
 498
 499 int Canvas::get_cursor_y()
 500 {
 501         return get_canvas()->get_cursor_y();
 502 }
 503
 504 int Canvas::get_buttonpress()
 505 {
 506         return get_canvas()->get_buttonpress();
 507 }
 508
 509
 510 void Canvas::create_objects(EDL *edl)
 511 {
 512         view_x = x;  view_y = y;
 513         view_w = w;  view_h = h;
 514         get_scrollbars(edl);
 515
 516         subwindow->unlock_window();
 517         create_canvas();
 518         subwindow->lock_window("Canvas::create_objects");
 519
 520         subwindow->add_subwindow(canvas_menu = new CanvasPopup(this));
 521         canvas_menu->create_objects();
 522
 523         subwindow->add_subwindow(fullscreen_menu = new CanvasFullScreenPopup(this));
 524         fullscreen_menu->create_objects();
 525
 526 }
 527
 528 int Canvas::button_press_event()
 529 {
 530         int result = 0;
 531
 532         if(get_canvas()->get_buttonpress() == 3)
 533         {
 534                 if(get_fullscreen())
 535                         fullscreen_menu->activate_menu();
 536                 else
 537                         canvas_menu->activate_menu();
 538                 result = 1;
 539         }
 540
 541         return result;
 542 }
 543
 544 void Canvas::start_single()
 545 {
 546         is_processing = 1;
 547         status_event();
 548 }
 549
 550 void Canvas::stop_single()
 551 {
 552         is_processing = 0;
 553         status_event();
 554 }
 555
 556 void Canvas::start_video()
 557 {
 558         if(get_canvas())
 559         {
 560                 get_canvas()->start_video();
 561                 status_event();
 562         }
 563 }
 564
 565 void Canvas::stop_video()
 566 {
 567         if(get_canvas())
 568         {
 569                 get_canvas()->stop_video();
 570                 status_event();
 571         }
 572 }
 573
 574 int Canvas::set_fullscreen(int on, int unlock)
 575 {
 576         int ret = 0;
 577         BC_WindowBase *window = get_canvas();
 578         if( unlock )
 579                 window->unlock_window();
 580         if( on && !get_fullscreen() ) {
 581                 start_fullscreen();
 582                 ret = 1;
 583         }
 584         if( !on && get_fullscreen() ) {
 585                 stop_fullscreen();
 586                 ret = 1;
 587         }
 588         if( unlock )
 589                 window->lock_window("Canvas::set_fullscreen");
 590         return ret;
 591 }
 592
 593 void Canvas::start_fullscreen()
 594 {
 595         is_fullscreen = 1;
 596         create_canvas();
 597 }
 598
 599 void Canvas::stop_fullscreen()
 600 {
 601         is_fullscreen = 0;
 602         create_canvas();
 603 }
 604
 605 void Canvas::create_canvas()
 606 {
 607         canvas_lock->lock("Canvas::create_canvas");
 608         int video_on = 0;
 609         BC_WindowBase *wdw = 0;
 610         if( !get_fullscreen() ) {
 611 // Enter windowed
 612                 if( canvas_fullscreen ) {
 613                         canvas_fullscreen->lock_window("Canvas::create_canvas 1");
 614                         video_on = canvas_fullscreen->get_video_on();
 615                         if( video_on ) canvas_fullscreen->stop_video();
 616                         canvas_fullscreen->hide_window();
 617                         canvas_fullscreen->unlock_window();
 618                 }
 619                 if( !canvas_auxwindow && !canvas_subwindow ) {
 620                         subwindow->add_subwindow(canvas_subwindow = new CanvasOutput(this,
 621                                 view_x, view_y, view_w, view_h));
 622                 }
 623                 wdw = get_canvas();
 624                 wdw->lock_window("Canvas::create_canvas 2");
 625         }
 626         else {
 627 // Enter fullscreen
 628                 wdw = canvas_auxwindow ? canvas_auxwindow : canvas_subwindow;
 629                 wdw->lock_window("Canvas::create_canvas 3");
 630                 video_on = wdw->get_video_on();
 631                 if( video_on ) wdw->stop_video();
 632                 int x, y, w, h;
 633                 wdw->get_fullscreen_geometry(x, y, w, h);
 634                 wdw->unlock_window();
 635                 if( canvas_fullscreen ) {
 636                         if( x != canvas_fullscreen->get_x() ||
 637                             y != canvas_fullscreen->get_y() ||
 638                             w != canvas_fullscreen->get_w() ||
 639                             h != canvas_fullscreen->get_h() ) {
 640                                 delete canvas_fullscreen;
 641                                 canvas_fullscreen = 0;
 642                         }
 643                 }
 644                 if( !canvas_fullscreen )
 645                         canvas_fullscreen = new CanvasFullScreen(this, w, h);
 646                 wdw = canvas_fullscreen;
 647                 wdw->lock_window("Canvas::create_canvas 4");
 648                 wdw->show_window();
 649                 wdw->sync_display();
 650                 wdw->reposition_window(x, y);
 651         }
 652
 653         if( video_on )
 654                 wdw->start_video();
 655         else
 656                 draw_refresh(1);
 657
 658         wdw->focus();
 659         wdw->unlock_window();
 660         canvas_lock->unlock();
 661 }
 662
 663
 664 int Canvas::cursor_leave_event_base(BC_WindowBase *caller)
 665 {
 666         int result = 0;
 667         if(cursor_inside) result = cursor_leave_event();
 668         cursor_inside = 0;
 669         return result;
 670 }
 671
 672 int Canvas::cursor_enter_event_base(BC_WindowBase *caller)
 673 {
 674         int result = 0;
 675         if(caller->is_event_win() && caller->cursor_inside())
 676         {
 677                 cursor_inside = 1;
 678                 result = cursor_enter_event();
 679         }
 680         return result;
 681 }
 682
 683 int Canvas::button_press_event_base(BC_WindowBase *caller)
 684 {
 685         if(caller->is_event_win() && caller->cursor_inside())
 686         {
 687                 return button_press_event();
 688         }
 689         return 0;
 690 }
 691
 692 int Canvas::keypress_event(BC_WindowBase *caller)
 693 {
 694         int key = caller->get_keypress();
 695         switch( key ) {
 696         case 'f': {
 697                 int on = get_fullscreen() ? 0 : 1;
 698                 set_fullscreen(on, 1);
 699                 break; }
 700         case ESC:
 701                 set_fullscreen(0, 1);
 702                 break;
 703         default:
 704                 return 0;
 705         }
 706         return 1;
 707 }
 708
 709 void Canvas::update_refresh(VideoDevice *device, VFrame *output_frame)
 710 {
 711         int best_color_model = output_frame->get_color_model();
 712         int use_opengl =
 713                 device->out_config->driver == PLAYBACK_X11_GL &&
 714                 output_frame->get_opengl_state() != VFrame::RAM;
 715
 716 // OpenGL does YUV->RGB in the compositing step
 717         if( use_opengl )
 718                 best_color_model = BC_RGB888;
 719         else if( BC_CModels::has_alpha(best_color_model) ) {
 720                 best_color_model =
 721                         BC_CModels::is_float(best_color_model ) ?
 722                                 BC_RGB_FLOAT :
 723                         BC_CModels::is_yuv(best_color_model ) ?
 724                                 ( BC_CModels::calculate_pixelsize(best_color_model) > 8 ?
 725                                         BC_YUV161616 : BC_YUV888 ) :
 726                                 ( BC_CModels::calculate_pixelsize(best_color_model) > 8 ?
 727                                         BC_RGB161616 : BC_RGB888 ) ;
 728         }
 729         int out_w = output_frame->get_w();
 730         int out_h = output_frame->get_h();
 731         if( refresh_frame &&
 732            (refresh_frame->get_w() != out_w ||
 733             refresh_frame->get_h() != out_h ||
 734             refresh_frame->get_color_model() != best_color_model ) ) {
 735 // x11 direct render uses BC_BGR8888, use tranfer_from to remap
 736                 delete refresh_frame;  refresh_frame = 0;
 737         }
 738
 739         if( !refresh_frame ) {
 740                 refresh_frame =
 741                         new VFrame(out_w, out_h, best_color_model);
 742         }
 743
 744         if( use_opengl ) {
 745                 unlock_canvas();
 746                 mwindow->playback_3d->copy_from(this, refresh_frame, output_frame, 0);
 747                 lock_canvas("Canvas::update_refresh");
 748         }
 749         else
 750                 refresh_frame->transfer_from(output_frame, -1);
 751 }
 752
 753 void Canvas::clear(int flash)
 754 {
 755         BC_WindowBase *window = get_canvas();
 756         if( !window ) return;
 757         window->set_bg_color(get_clear_color());
 758         window->clear_box(0,0, window->get_w(), window->get_h());
 759         if( flash ) window->flash();
 760 }
 761
 762 void Canvas::clear_borders(EDL *edl)
 763 {
 764         BC_WindowBase *window = get_canvas();
 765         if( !window ) return;
 766         int window_w = window->get_w();
 767         int window_h = window->get_h();
 768         int color = get_clear_color();
 769         window->set_color(color);
 770
 771         if( !edl ) {
 772                 window->draw_box(0, 0, window_w, window_h);
 773                 window->flash(0);
 774                 return;
 775         }
 776
 777         float output_x1,output_y1, output_x2,output_y2;
 778         float canvas_x1,canvas_y1, canvas_x2,canvas_y2;
 779         get_transfers(edl,
 780                 output_x1, output_y1, output_x2, output_y2,
 781                 canvas_x1, canvas_y1, canvas_x2, canvas_y2);
 782
 783         if( canvas_y1 > 0 ) {
 784                 window->draw_box(0, 0, window_w, canvas_y1);
 785                 window->flash(0, 0, window_w, canvas_y1);
 786         }
 787
 788         if( canvas_y2 < window_h ) {
 789                 window->draw_box(0, canvas_y2, window_w, window_h-canvas_y2);
 790                 window->flash(0, canvas_y2, window_w, window_h-canvas_y2);
 791         }
 792
 793         if( canvas_x1 > 0 ) {
 794                 window->draw_box(0, canvas_y1, canvas_x1, canvas_y2-canvas_y1);
 795                 window->flash(0, canvas_y1, canvas_x1, canvas_y2-canvas_y1);
 796         }
 797
 798         if( canvas_x2 < window_w ) {
 799                 window->draw_box(canvas_x2, canvas_y1,
 800                         window_w-canvas_x2, canvas_y2-canvas_y1);
 801                 window->flash(canvas_x2, canvas_y1,
 802                         window_w-canvas_x2, canvas_y2-canvas_y1);
 803         }
 804 }
 805
 806 int Canvas::get_clear_color()
 807 {
 808         BC_WindowBase *cwdw = get_canvas();
 809         if( !cwdw ) return 0;
 810         return cwdw->get_bg_color();
 811 }
 812
 813 CanvasOutput::CanvasOutput(Canvas *canvas,
 814     int x, int y, int w, int h)
 815  : BC_SubWindow(x, y, w, h, canvas->get_clear_color())
 816 {
 817         this->canvas = canvas;
 818 }
 819
 820 CanvasOutput::~CanvasOutput()
 821 {
 822 }
 823
 824 int CanvasOutput::cursor_leave_event()
 825 {
 826         return canvas->cursor_leave_event_base(canvas->get_canvas());
 827 }
 828
 829 int CanvasOutput::cursor_enter_event()
 830 {
 831         return canvas->cursor_enter_event_base(canvas->get_canvas());
 832 }
 833
 834 int CanvasOutput::button_press_event()
 835 {
 836         return canvas->button_press_event_base(canvas->get_canvas());
 837 }
 838
 839 int CanvasOutput::button_release_event()
 840 {
 841         return canvas->button_release_event();
 842 }
 843
 844 int CanvasOutput::cursor_motion_event()
 845 {
 846         return canvas->cursor_motion_event();
 847 }
 848
 849 int CanvasOutput::keypress_event()
 850 {
 851         return canvas->keypress_event(canvas->get_canvas());
 852 }
 853
 854
 855
 856 CanvasFullScreen::CanvasFullScreen(Canvas *canvas, int w, int h)
 857  : BC_FullScreen(canvas->subwindow, w, h, canvas->get_clear_color(), 0, 0, 0)
 858 {
 859         this->canvas = canvas;
 860 }
 861
 862 CanvasFullScreen::~CanvasFullScreen()
 863 {
 864 }
 865
 866
 867 CanvasXScroll::CanvasXScroll(EDL *edl, Canvas *canvas, int x, int y,
 868         int length, int position, int handle_length, int pixels)
 869  : BC_ScrollBar(x, y, SCROLL_HORIZ, pixels, length, position, handle_length)
 870 {
 871         this->canvas = canvas;
 872 }
 873
 874 CanvasXScroll::~CanvasXScroll()
 875 {
 876 }
 877
 878 int CanvasXScroll::handle_event()
 879 {
 880         canvas->update_zoom(get_value(), canvas->get_yscroll(),
 881                         canvas->get_zoom());
 882         return canvas->refresh(1);
 883 }
 884
 885
 886 CanvasYScroll::CanvasYScroll(EDL *edl, Canvas *canvas, int x, int y,
 887         int length, int position, int handle_length, int pixels)
 888  : BC_ScrollBar(x, y, SCROLL_VERT, pixels, length, position, handle_length)
 889 {
 890         this->canvas = canvas;
 891 }
 892
 893 CanvasYScroll::~CanvasYScroll()
 894 {
 895 }
 896
 897 int CanvasYScroll::handle_event()
 898 {
 899         canvas->update_zoom(canvas->get_xscroll(), get_value(),
 900                         canvas->get_zoom());
 901         return canvas->refresh(1);
 902 }
 903
 904
 905 CanvasFullScreenPopup::CanvasFullScreenPopup(Canvas *canvas)
 906  : BC_PopupMenu(0, 0, 0, "", 0)
 907 {
 908         this->canvas = canvas;
 909 }
 910
 911
 912 void CanvasFullScreenPopup::create_objects()
 913 {
 914         add_item(new CanvasSubWindowItem(canvas));
 915 }
 916
 917 void CanvasFullScreenPopup::use_cwindow()
 918 {
 919         add_item(new CanvasPopupAuto(canvas));
 920 }
 921
 922 CanvasSubWindowItem::CanvasSubWindowItem(Canvas *canvas)
 923  : BC_MenuItem(_("Windowed"), "f", 'f')
 924 {
 925         this->canvas = canvas;
 926 }
 927
 928 int CanvasSubWindowItem::handle_event()
 929 {
 930 // It isn't a problem to delete the canvas from in here because the event
 931 // dispatcher is the canvas subwindow.
 932         canvas->set_fullscreen(0, 1);
 933         return 1;
 934 }
 935
 936
 937 CanvasPopup::CanvasPopup(Canvas *canvas)
 938  : BC_PopupMenu(0, 0, 0, "", 0)
 939 {
 940         this->canvas = canvas;
 941 }
 942
 943 CanvasPopup::~CanvasPopup()
 944 {
 945 }
 946
 947 CanvasZoomSize::CanvasZoomSize(Canvas *canvas)
 948  : BC_MenuItem(_("Zoom..."))
 949 {
 950         this->canvas = canvas;
 951 }
 952
 953 CanvasSizeSubMenu::CanvasSizeSubMenu(CanvasZoomSize *zoom_size)
 954 {
 955         this->zoom_size = zoom_size;
 956 }
 957
 958 void CanvasPopup::create_objects()
 959 {
 960         add_item(new BC_MenuItem("-"));
 961         add_item(new CanvasFullScreenItem(canvas));
 962
 963         CanvasZoomSize *zoom_size = new CanvasZoomSize(canvas);
 964         add_item(zoom_size);
 965         CanvasSizeSubMenu *submenu = new CanvasSizeSubMenu(zoom_size);
 966         zoom_size->add_submenu(submenu);
 967
 968         submenu->add_submenuitem(new CanvasPopupSize(canvas, _("Zoom 25%"), 0.25));
 969         submenu->add_submenuitem(new CanvasPopupSize(canvas, _("Zoom 33%"), 0.33));
 970         submenu->add_submenuitem(new CanvasPopupSize(canvas, _("Zoom 50%"), 0.5));
 971         submenu->add_submenuitem(new CanvasPopupSize(canvas, _("Zoom 75%"), 0.75));
 972         submenu->add_submenuitem(new CanvasPopupSize(canvas, _("Zoom 100%"), 1.0));
 973         submenu->add_submenuitem(new CanvasPopupSize(canvas, _("Zoom 150%"), 1.5));
 974         submenu->add_submenuitem(new CanvasPopupSize(canvas, _("Zoom 200%"), 2.0));
 975         submenu->add_submenuitem(new CanvasPopupSize(canvas, _("Zoom 300%"), 3.0));
 976         submenu->add_submenuitem(new CanvasPopupSize(canvas, _("Zoom 400%"), 4.0));
 977 }
 978
 979 void CanvasPopup::use_cwindow()
 980 {
 981         add_item(new CanvasPopupAuto(canvas));
 982         add_item(new CanvasPopupResetCamera(canvas));
 983         add_item(new CanvasPopupResetProjector(canvas));
 984         add_item(new CanvasPopupCameraKeyframe(canvas));
 985         add_item(new CanvasPopupProjectorKeyframe(canvas));
 986         add_item(toggle_controls = new CanvasToggleControls(canvas));
 987 }
 988
 989 void CanvasPopup::use_rwindow()
 990 {
 991         add_item(new CanvasPopupResetTranslation(canvas));
 992 }
 993
 994 void CanvasPopup::use_vwindow()
 995 {
 996         add_item(new CanvasPopupRemoveSource(canvas));
 997 }
 998
 999
1000 CanvasPopupAuto::CanvasPopupAuto(Canvas *canvas)
1001  : BC_MenuItem(_("Zoom Auto"))
1002 {
1003         this->canvas = canvas;
1004 }
1005
1006 int CanvasPopupAuto::handle_event()
1007 {
1008         canvas->zoom_auto();
1009         return 1;
1010 }
1011
1012
1013 CanvasPopupSize::CanvasPopupSize(Canvas *canvas, char *text, float percentage)
1014  : BC_MenuItem(text)
1015 {
1016         this->canvas = canvas;
1017         this->percentage = percentage;
1018 }
1019 CanvasPopupSize::~CanvasPopupSize()
1020 {
1021 }
1022 int CanvasPopupSize::handle_event()
1023 {
1024         canvas->zoom_resize_window(percentage);
1025         return 1;
1026 }
1027
1028
1029 CanvasPopupResetCamera::CanvasPopupResetCamera(Canvas *canvas)
1030  : BC_MenuItem(_("Reset camera"), _("F11"), KEY_F11)
1031 {
1032         this->canvas = canvas;
1033 }
1034 int CanvasPopupResetCamera::handle_event()
1035 {
1036         canvas->reset_camera();
1037         return 1;
1038 }
1039
1040 CanvasPopupResetProjector::CanvasPopupResetProjector(Canvas *canvas)
1041  : BC_MenuItem(_("Reset projector"), _("F12"), KEY_F12)
1042 {
1043         this->canvas = canvas;
1044 }
1045 int CanvasPopupResetProjector::handle_event()
1046 {
1047         canvas->reset_projector();
1048         return 1;
1049 }
1050
1051
1052 CanvasPopupCameraKeyframe::CanvasPopupCameraKeyframe(Canvas *canvas)
1053  : BC_MenuItem(_("Camera keyframe"), _("Shift-F11"), KEY_F11)
1054 {
1055         this->canvas = canvas;
1056         set_shift(1);
1057 }
1058 int CanvasPopupCameraKeyframe::handle_event()
1059 {
1060         canvas->camera_keyframe();
1061         return 1;
1062 }
1063
1064 CanvasPopupProjectorKeyframe::CanvasPopupProjectorKeyframe(Canvas *canvas)
1065  : BC_MenuItem(_("Projector keyframe"), _("Shift-F12"), KEY_F12)
1066 {
1067         this->canvas = canvas;
1068         set_shift(1);
1069 }
1070 int CanvasPopupProjectorKeyframe::handle_event()
1071 {
1072         canvas->projector_keyframe();
1073         return 1;
1074 }
1075
1076
1077
1078 CanvasPopupResetTranslation::CanvasPopupResetTranslation(Canvas *canvas)
1079  : BC_MenuItem(_("Reset translation"))
1080 {
1081         this->canvas = canvas;
1082 }
1083 int CanvasPopupResetTranslation::handle_event()
1084 {
1085         canvas->reset_translation();
1086         return 1;
1087 }
1088
1089
1090
1091 CanvasToggleControls::CanvasToggleControls(Canvas *canvas)
1092  : BC_MenuItem(calculate_text(canvas->get_cwindow_controls()))
1093 {
1094         this->canvas = canvas;
1095 }
1096 int CanvasToggleControls::handle_event()
1097 {
1098         canvas->toggle_controls();
1099         set_text(calculate_text(canvas->get_cwindow_controls()));
1100         return 1;
1101 }
1102
1103 char* CanvasToggleControls::calculate_text(int cwindow_controls)
1104 {
1105         return !cwindow_controls ? _("Show controls") : _("Hide controls");
1106 }
1107
1108
1109 CanvasFullScreenItem::CanvasFullScreenItem(Canvas *canvas)
1110  : BC_MenuItem(_("Fullscreen"), "f", 'f')
1111 {
1112         this->canvas = canvas;
1113 }
1114 int CanvasFullScreenItem::handle_event()
1115 {
1116         canvas->set_fullscreen(1, 1);
1117         return 1;
1118 }
1119
1120
1121 CanvasPopupRemoveSource::CanvasPopupRemoveSource(Canvas *canvas)
1122  : BC_MenuItem(_("Close source"))
1123 {
1124         this->canvas = canvas;
1125 }
1126 int CanvasPopupRemoveSource::handle_event()
1127 {
1128         canvas->close_source();
1129         return 1;
1130 }
1131
1132