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,
  40         BC_WindowBase *subwindow,
  41         int x,
  42         int y,
  43         int w,
  44         int h,
  45         int output_w,
  46         int output_h,
  47         int use_scrollbars)
  48 {
  49         reset();
  50
  51         if(w < 10) w = 10;
  52         if(h < 10) h = 10;
  53         this->mwindow = mwindow;
  54         this->subwindow = subwindow;
  55         this->x = x;
  56         this->y = y;
  57         this->w = w;
  58         this->h = h;
  59         this->output_w = output_w;
  60         this->output_h = output_h;
  61         this->use_scrollbars = use_scrollbars;
  62         this->canvas_auxwindow = 0;
  63         this->scr_w0 = subwindow->get_screen_w(0, 0);
  64         this->root_w = subwindow->get_root_w(0);
  65         this->root_h = subwindow->get_root_h(0);
  66         canvas_lock = new Mutex("Canvas::canvas_lock", 1);
  67 }
  68
  69 Canvas::~Canvas()
  70 {
  71         if(refresh_frame) delete refresh_frame;
  72         delete canvas_menu;
  73         if(yscroll) delete yscroll;
  74         if(xscroll) delete xscroll;
  75         delete canvas_subwindow;
  76         delete canvas_fullscreen;
  77         delete canvas_lock;
  78 }
  79
  80 void Canvas::reset()
  81 {
  82         use_scrollbars = 0;
  83         output_w = 0;
  84         output_h = 0;
  85         xscroll = 0;
  86         yscroll = 0;
  87         refresh_frame = 0;
  88         canvas_subwindow = 0;
  89         canvas_fullscreen = 0;
  90         is_processing = 0;
  91         is_fullscreen = 0;
  92         cursor_inside = 0;
  93 }
  94
  95 void Canvas::lock_canvas(const char *location)
  96 {
  97         canvas_lock->lock(location);
  98 }
  99
 100 void Canvas::unlock_canvas()
 101 {
 102         canvas_lock->unlock();
 103 }
 104
 105 int Canvas::is_locked()
 106 {
 107         return canvas_lock->is_locked();
 108 }
 109
 110
 111 BC_WindowBase* Canvas::get_canvas()
 112 {
 113         if(get_fullscreen() && canvas_fullscreen)
 114                 return canvas_fullscreen;
 115         return canvas_auxwindow ? canvas_auxwindow : canvas_subwindow;
 116 }
 117
 118 void Canvas::use_auxwindow(BC_WindowBase *aux)
 119 {
 120         canvas_auxwindow = aux;
 121 }
 122
 123 void Canvas::use_cwindow()
 124 {
 125         canvas_menu->use_cwindow();
 126         fullscreen_menu->use_cwindow();
 127 }
 128
 129 void Canvas::use_rwindow()
 130 {
 131         canvas_menu->use_rwindow();
 132 }
 133
 134 void Canvas::use_vwindow()
 135 {
 136         canvas_menu->use_vwindow();
 137 }
 138
 139 int Canvas::get_fullscreen()
 140 {
 141         return is_fullscreen;
 142 }
 143
 144 void Canvas::set_fullscreen(int value)
 145 {
 146         is_fullscreen = value;
 147 }
 148
 149 // Get dimensions given a zoom
 150 void Canvas::calculate_sizes(float aspect_ratio,
 151         int output_w,
 152         int output_h,
 153         float zoom,
 154         int &w,
 155         int &h)
 156 {
 157 // Horizontal stretch
 158         if((float)output_w / output_h <= aspect_ratio)
 159         {
 160                 w = (int)((float)output_h * aspect_ratio * zoom);
 161                 h = (int)((float)output_h * zoom);
 162         }
 163         else
 164 // Vertical stretch
 165         {
 166                 h = (int)((float)output_w / aspect_ratio * zoom);
 167                 w = (int)((float)output_w * zoom);
 168         }
 169 }
 170
 171 float Canvas::get_x_offset(EDL *edl,
 172         int single_channel,
 173         float zoom_x,
 174         float conformed_w,
 175         float conformed_h)
 176 {
 177         if(use_scrollbars)
 178         {
 179                 if(xscroll)
 180                 {
 181 // If the projection is smaller than the canvas, this forces it in the center.
 182 //                      if(conformed_w < w_visible)
 183 //                              return -(float)(w_visible - conformed_w) / 2;
 184
 185                         return (float)get_xscroll();
 186                 }
 187                 else
 188                         return ((float)-get_canvas()->get_w() / zoom_x +
 189                                 edl->session->output_w) / 2;
 190         }
 191         else
 192         {
 193                 int out_w, out_h;
 194                 int canvas_w = get_canvas()->get_w();
 195                 int canvas_h = get_canvas()->get_h();
 196                 out_w = canvas_w;
 197                 out_h = canvas_h;
 198
 199                 if((float)out_w / out_h > conformed_w / conformed_h)
 200                 {
 201                         out_w = (int)(out_h * conformed_w / conformed_h + 0.5);
 202                 }
 203
 204                 if(out_w < canvas_w)
 205                         return -(canvas_w - out_w) / 2 / zoom_x;
 206         }
 207
 208         return 0;
 209 }
 210
 211 float Canvas::get_y_offset(EDL *edl,
 212         int single_channel,
 213         float zoom_y,
 214         float conformed_w,
 215         float conformed_h)
 216 {
 217         if(use_scrollbars)
 218         {
 219                 if(yscroll)
 220                 {
 221 // If the projection is smaller than the canvas, this forces it in the center.
 222 //                      if(conformed_h < h_visible)
 223 //                              return -(float)(h_visible - conformed_h) / 2;
 224
 225                         return (float)get_yscroll();
 226                 }
 227                 else
 228                         return ((float)-get_canvas()->get_h() / zoom_y +
 229                                 edl->session->output_h) / 2;
 230         }
 231         else
 232         {
 233                 int out_w, out_h;
 234                 int canvas_w = get_canvas()->get_w();
 235                 int canvas_h = get_canvas()->get_h();
 236                 out_w = canvas_w;
 237                 out_h = canvas_h;
 238
 239                 if((float)out_w / out_h <= conformed_w / conformed_h)
 240                 {
 241                         out_h = (int)((float)out_w / (conformed_w / conformed_h) + 0.5);
 242                 }
 243
 244 //printf("Canvas::get_y_offset 1 %d %d %f\n", out_h, canvas_h, -((float)canvas_h - out_h) / 2);
 245                 if(out_h < canvas_h)
 246                         return -((float)canvas_h - out_h) / 2 / zoom_y;
 247         }
 248
 249         return 0;
 250 }
 251
 252 // This may not be used anymore
 253 void Canvas::check_boundaries(EDL *edl, int &x, int &y, float &zoom)
 254 {
 255         if(x + w_visible > w_needed) x = w_needed - w_visible;
 256         if(y + h_visible > h_needed) y = h_needed - h_visible;
 257
 258         if(x < 0) x = 0;
 259         if(y < 0) y = 0;
 260 }
 261
 262 void Canvas::update_scrollbars(int flush)
 263 {
 264         if(use_scrollbars)
 265         {
 266                 if(xscroll) xscroll->update_length(w_needed, get_xscroll(), w_visible, flush);
 267                 if(yscroll) yscroll->update_length(h_needed, get_yscroll(), h_visible, flush);
 268         }
 269 }
 270
 271 void Canvas::get_zooms(EDL *edl,
 272         int single_channel,
 273         float &zoom_x,
 274         float &zoom_y,
 275         float &conformed_w,
 276         float &conformed_h)
 277 {
 278         edl->calculate_conformed_dimensions(single_channel,
 279                 conformed_w,
 280                 conformed_h);
 281
 282         if(use_scrollbars)
 283         {
 284                 zoom_x = get_zoom() *
 285                         conformed_w /
 286                         edl->session->output_w;
 287                 zoom_y = get_zoom() *
 288                         conformed_h /
 289                         edl->session->output_h;
 290         }
 291         else
 292         {
 293                 int out_w, out_h;
 294                 int canvas_w = get_canvas()->get_w();
 295                 int canvas_h = get_canvas()->get_h();
 296
 297                 out_w = canvas_w;
 298                 out_h = canvas_h;
 299
 300                 if((float)out_w / out_h > conformed_w / conformed_h)
 301                 {
 302                         out_w = (int)((float)out_h * conformed_w / conformed_h + 0.5);
 303                 }
 304                 else
 305                 {
 306                         out_h = (int)((float)out_w / (conformed_w / conformed_h) + 0.5);
 307                 }
 308
 309                 zoom_x = (float)out_w / edl->session->output_w;
 310                 zoom_y = (float)out_h / edl->session->output_h;
 311 //printf("get zooms 2 %d %d %f %f\n", canvas_w, canvas_h, conformed_w, conformed_h);
 312         }
 313 }
 314
 315 // Convert a coordinate on the canvas to a coordinate on the output
 316 void Canvas::canvas_to_output(EDL *edl, int single_channel, float &x, float &y)
 317 {
 318         float zoom_x, zoom_y, conformed_w, conformed_h;
 319         get_zooms(edl, single_channel, zoom_x, zoom_y, conformed_w, conformed_h);
 320
 321 //printf("Canvas::canvas_to_output y=%f zoom_y=%f y_offset=%f\n",
 322 //      y, zoom_y, get_y_offset(edl, single_channel, zoom_y, conformed_w, conformed_h));
 323
 324         x = (float)x / zoom_x + get_x_offset(edl, single_channel, zoom_x, conformed_w, conformed_h);
 325         y = (float)y / zoom_y + get_y_offset(edl, single_channel, zoom_y, conformed_w, conformed_h);
 326 }
 327
 328 void Canvas::output_to_canvas(EDL *edl, int single_channel, float &x, float &y)
 329 {
 330         float zoom_x, zoom_y, conformed_w, conformed_h;
 331         get_zooms(edl, single_channel, zoom_x, zoom_y, conformed_w, conformed_h);
 332
 333 //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));
 334
 335         x = (float)zoom_x * (x - get_x_offset(edl, single_channel, zoom_x, conformed_w, conformed_h));
 336         y = (float)zoom_y * (y - get_y_offset(edl, single_channel, zoom_y, conformed_w, conformed_h));
 337 }
 338
 339
 340
 341 void Canvas::get_transfers(EDL *edl,
 342         float &output_x1, float &output_y1, float &output_x2, float &output_y2,
 343         float &canvas_x1, float &canvas_y1, float &canvas_x2, float &canvas_y2,
 344         int canvas_w, int canvas_h)
 345 {
 346 //printf("Canvas::get_transfers %d canvas_w=%d canvas_h=%d\n",
 347 // __LINE__,  canvas_w, canvas_h);
 348 // automatic canvas size detection
 349         if(canvas_w < 0) canvas_w = get_canvas()->get_w();
 350         if(canvas_h < 0) canvas_h = get_canvas()->get_h();
 351
 352 // Canvas is zoomed to a portion of the output frame
 353         if(use_scrollbars)
 354         {
 355                 float in_x1, in_y1, in_x2, in_y2;
 356                 float out_x1, out_y1, out_x2, out_y2;
 357                 float zoom_x, zoom_y, conformed_w, conformed_h;
 358
 359                 get_zooms(edl, 0, zoom_x, zoom_y, conformed_w, conformed_h);
 360                 out_x1 = 0;
 361                 out_y1 = 0;
 362                 out_x2 = canvas_w;
 363                 out_y2 = canvas_h;
 364                 in_x1 = 0;
 365                 in_y1 = 0;
 366                 in_x2 = canvas_w;
 367                 in_y2 = canvas_h;
 368
 369                 canvas_to_output(edl, 0, in_x1, in_y1);
 370                 canvas_to_output(edl, 0, in_x2, in_y2);
 371
 372 //printf("Canvas::get_transfers 1 %.0f %.0f %.0f %.0f -> %.0f %.0f %.0f %.0f\n",
 373 //in_x1, in_y1, in_x2, in_y2, out_x1, out_y1, out_x2, out_y2);
 374
 375                 if(in_x1 < 0)
 376                 {
 377                         out_x1 += -in_x1 * zoom_x;
 378                         in_x1 = 0;
 379                 }
 380
 381                 if(in_y1 < 0)
 382                 {
 383                         out_y1 += -in_y1 * zoom_y;
 384                         in_y1 = 0;
 385                 }
 386
 387                 int output_w = get_output_w(edl);
 388                 int output_h = get_output_h(edl);
 389
 390                 if(in_x2 > output_w)
 391                 {
 392                         out_x2 -= (in_x2 - output_w) * zoom_x;
 393                         in_x2 = output_w;
 394                 }
 395
 396                 if(in_y2 > output_h)
 397                 {
 398                         out_y2 -= (in_y2 - output_h) * zoom_y;
 399                         in_y2 = output_h;
 400                 }
 401 // printf("Canvas::get_transfers 2 %.0f %.0f %.0f %.0f -> %.0f %.0f %.0f %.0f\n",
 402 //                      in_x1, in_y1, in_x2, in_y2, out_x1, out_y1, out_x2, out_y2);
 403
 404                 output_x1 = in_x1;
 405                 output_y1 = in_y1;
 406                 output_x2 = in_x2;
 407                 output_y2 = in_y2;
 408                 canvas_x1 = out_x1;
 409                 canvas_y1 = out_y1;
 410                 canvas_x2 = out_x2;
 411                 canvas_y2 = out_y2;
 412
 413 // Center on canvas
 414 //              if(!scrollbars_exist())
 415 //              {
 416 //                      out_x = canvas_w / 2 - out_w / 2;
 417 //                      out_y = canvas_h / 2 - out_h / 2;
 418 //              }
 419
 420         }
 421         else
 422 // The output frame is normalized to the canvas
 423         {
 424 // Default canvas coords fill the entire canvas
 425                 canvas_x1 = 0;
 426                 canvas_y1 = 0;
 427                 canvas_x2 = canvas_w;
 428                 canvas_y2 = canvas_h;
 429
 430                 if(edl)
 431                 {
 432 // Use EDL aspect ratio to shrink one of the canvas dimensions
 433                         float out_w = canvas_x2 - canvas_x1;
 434                         float out_h = canvas_y2 - canvas_y1;
 435                         if(out_w / out_h > edl->get_aspect_ratio())
 436                         {
 437                                 out_w = (int)(out_h * edl->get_aspect_ratio() + 0.5);
 438                                 canvas_x1 = canvas_w / 2 - out_w / 2;
 439                         }
 440                         else
 441                         {
 442                                 out_h = (int)(out_w / edl->get_aspect_ratio() + 0.5);
 443                                 canvas_y1 = canvas_h / 2 - out_h / 2;
 444 // printf("Canvas::get_transfers %d canvas_h=%d out_h=%f canvas_y1=%f\n",
 445 // __LINE__,
 446 // canvas_h,
 447 // out_h,
 448 // canvas_y1);
 449                         }
 450                         canvas_x2 = canvas_x1 + out_w;
 451                         canvas_y2 = canvas_y1 + out_h;
 452
 453 // Get output frame coords from EDL
 454                         output_x1 = 0;
 455                         output_y1 = 0;
 456                         output_x2 = get_output_w(edl);
 457                         output_y2 = get_output_h(edl);
 458                 }
 459                 else
 460 // No EDL to get aspect ratio or output frame coords from
 461                 {
 462                         output_x1 = 0;
 463                         output_y1 = 0;
 464                         output_x2 = this->output_w;
 465                         output_y2 = this->output_h;
 466                 }
 467         }
 468
 469 // Clamp to minimum value
 470         output_x1 = MAX(0, output_x1);
 471         output_y1 = MAX(0, output_y1);
 472         output_x2 = MAX(output_x1, output_x2);
 473         output_y2 = MAX(output_y1, output_y2);
 474         canvas_x1 = MAX(0, canvas_x1);
 475         canvas_y1 = MAX(0, canvas_y1);
 476         canvas_x2 = MAX(canvas_x1, canvas_x2);
 477         canvas_y2 = MAX(canvas_y1, canvas_y2);
 478 // printf("Canvas::get_transfers %d %f,%f %f,%f -> %f,%f %f,%f\n",
 479 // __LINE__,
 480 // output_x1,
 481 // output_y1,
 482 // output_x2,
 483 // output_y2,
 484 // canvas_x1,
 485 // canvas_y1,
 486 // canvas_x2,
 487 // canvas_y2);
 488 }
 489
 490 int Canvas::scrollbars_exist()
 491 {
 492         return(use_scrollbars && (xscroll || yscroll));
 493 }
 494
 495 int Canvas::get_output_w(EDL *edl)
 496 {
 497         return !edl ? 0 : edl->session->output_w;
 498 }
 499
 500 int Canvas::get_output_h(EDL *edl)
 501 {
 502         return !edl ? 0 : edl->session->output_h;
 503 }
 504
 505
 506
 507 void Canvas::get_scrollbars(EDL *edl,
 508         int &canvas_x,
 509         int &canvas_y,
 510         int &canvas_w,
 511         int &canvas_h)
 512 {
 513         int need_xscroll = 0;
 514         int need_yscroll = 0;
 515 //      int done = 0;
 516         float zoom_x, zoom_y, conformed_w, conformed_h;
 517
 518         if(edl)
 519         {
 520                 w_needed = edl->session->output_w;
 521                 h_needed = edl->session->output_h;
 522                 w_visible = w_needed;
 523                 h_visible = h_needed;
 524         }
 525 //printf("Canvas::get_scrollbars 1 %d %d\n", get_xscroll(), get_yscroll());
 526
 527         if( use_scrollbars ) {
 528                 w_needed = edl->session->output_w;
 529                 h_needed = edl->session->output_h;
 530                 get_zooms(edl, 0, zoom_x, zoom_y, conformed_w, conformed_h);
 531 //printf("Canvas::get_scrollbars 2 %d %d\n", get_xscroll(), get_yscroll());
 532
 533                 w_visible = (int)(canvas_w / zoom_x);
 534                 h_visible = (int)(canvas_h / zoom_y);
 535                 if( w_needed > w_visible ) {
 536                         need_xscroll = 1;
 537                         canvas_h -= BC_ScrollBar::get_span(SCROLL_HORIZ);
 538                 }
 539
 540                 if( h_needed > h_visible ) {
 541                         need_yscroll = 1;
 542                         canvas_w -= BC_ScrollBar::get_span(SCROLL_VERT);
 543                 }
 544 //printf("Canvas::get_scrollbars %d %d %d %d %d %d\n", canvas_w, canvas_h, w_needed, h_needed, w_visible, h_visible);
 545 //printf("Canvas::get_scrollbars 3 %d %d\n", get_xscroll(), get_yscroll());
 546
 547                 w_visible = (int)(canvas_w / zoom_x);
 548                 h_visible = (int)(canvas_h / zoom_y);
 549         }
 550
 551         if( need_xscroll ) {
 552                 if( !xscroll ) {
 553                         xscroll = new CanvasXScroll(edl, this, canvas_x, canvas_y + canvas_h,
 554                                         w_needed, get_xscroll(), w_visible, canvas_w);
 555                         subwindow->add_subwindow(xscroll);
 556                         xscroll->show_window(0);
 557                 }
 558                 else
 559                         xscroll->reposition_window(canvas_x, canvas_y + canvas_h, canvas_w);
 560
 561                 if( xscroll->get_length() != w_needed ||
 562                     xscroll->get_handlelength() != w_visible )
 563                         xscroll->update_length(w_needed, get_xscroll(), w_visible, 0);
 564         }
 565         else if( xscroll ) {
 566                 delete xscroll;  xscroll = 0;
 567         }
 568 //printf("Canvas::get_scrollbars 4 %d %d\n", get_xscroll(), get_yscroll());
 569
 570         if( need_yscroll ) {
 571                 if( !yscroll ) {
 572                         yscroll = new CanvasYScroll(edl, this, canvas_x + canvas_w, canvas_y,
 573                                         h_needed, get_yscroll(), h_visible, canvas_h);
 574                         subwindow->add_subwindow(yscroll);
 575                         yscroll->show_window(0);
 576                 }
 577                 else
 578                         yscroll->reposition_window(canvas_x + canvas_w, canvas_y, canvas_h);
 579
 580                 if( yscroll->get_length() != edl->session->output_h ||
 581                     yscroll->get_handlelength() != h_visible )
 582                         yscroll->update_length(h_needed, get_yscroll(), h_visible, 0);
 583         }
 584         else if( yscroll ) {
 585                 delete yscroll;  yscroll = 0;
 586         }
 587 //printf("Canvas::get_scrollbars 5 %d %d\n", get_xscroll(), get_yscroll());
 588 }
 589
 590
 591 void Canvas::update_geometry(EDL *edl, int x, int y, int w, int h)
 592 {
 593         int redraw = 0;
 594         if( this->x != x || this->y != y ||
 595             this->w != w || this->h != h ) redraw = 1;
 596         if( !redraw ) {
 597                 int vx = x, vy = y, vw = w, vh = h;
 598                 get_scrollbars(edl, vx, vy, vw, vh);
 599                 if( vx != view_x || vy != view_y ||
 600                     vw != view_w || vh != view_h ) redraw = 1;
 601         }
 602         if( !redraw ) return;
 603         reposition_window(edl, x, y, w, h);
 604 }
 605
 606 void Canvas::reposition_window(EDL *edl, int x, int y, int w, int h)
 607 {
 608         this->x = view_x = x;  this->y = view_y = y;
 609         this->w = view_w = w;  this->h = view_h = h;
 610 //printf("Canvas::reposition_window 1\n");
 611         get_scrollbars(edl, view_x, view_y, view_w, view_h);
 612 //printf("Canvas::reposition_window %d %d %d %d\n", view_x, view_y, view_w, view_h);
 613         if(canvas_subwindow)
 614         {
 615                 canvas_subwindow->reposition_window(view_x, view_y, view_w, view_h);
 616
 617 // Need to clear out the garbage in the back
 618                 if(canvas_subwindow->get_video_on())
 619                 {
 620                         canvas_subwindow->set_color(BLACK);
 621                         canvas_subwindow->draw_box(0, 0,
 622                                 get_canvas()->get_w(), get_canvas()->get_h());
 623                         canvas_subwindow->flash(0);
 624                 }
 625         }
 626         draw_refresh(0);
 627 }
 628
 629 void Canvas::set_cursor(int cursor)
 630 {
 631         get_canvas()->set_cursor(cursor, 0, 1);
 632 }
 633
 634 int Canvas::get_cursor_x()
 635 {
 636         return get_canvas()->get_cursor_x();
 637 }
 638
 639 int Canvas::get_cursor_y()
 640 {
 641         return get_canvas()->get_cursor_y();
 642 }
 643
 644 int Canvas::get_buttonpress()
 645 {
 646         return get_canvas()->get_buttonpress();
 647 }
 648
 649
 650 void Canvas::create_objects(EDL *edl)
 651 {
 652         view_x = x;
 653         view_y = y;
 654         view_w = w;
 655         view_h = h;
 656         get_scrollbars(edl, view_x, view_y, view_w, view_h);
 657
 658         subwindow->unlock_window();
 659         create_canvas();
 660         subwindow->lock_window("Canvas::create_objects");
 661
 662         subwindow->add_subwindow(canvas_menu = new CanvasPopup(this));
 663         canvas_menu->create_objects();
 664
 665         subwindow->add_subwindow(fullscreen_menu = new CanvasFullScreenPopup(this));
 666         fullscreen_menu->create_objects();
 667
 668 }
 669
 670 int Canvas::button_press_event()
 671 {
 672         int result = 0;
 673
 674         if(get_canvas()->get_buttonpress() == 3)
 675         {
 676                 if(get_fullscreen())
 677                         fullscreen_menu->activate_menu();
 678                 else
 679                         canvas_menu->activate_menu();
 680                 result = 1;
 681         }
 682
 683         return result;
 684 }
 685
 686 void Canvas::start_single()
 687 {
 688         is_processing = 1;
 689         status_event();
 690 }
 691
 692 void Canvas::stop_single()
 693 {
 694         is_processing = 0;
 695         status_event();
 696 }
 697
 698 void Canvas::start_video()
 699 {
 700         if(get_canvas())
 701         {
 702                 get_canvas()->start_video();
 703                 status_event();
 704         }
 705 }
 706
 707 void Canvas::stop_video()
 708 {
 709         if(get_canvas())
 710         {
 711                 get_canvas()->stop_video();
 712                 status_event();
 713         }
 714 }
 715
 716
 717 void Canvas::start_fullscreen()
 718 {
 719         set_fullscreen(1);
 720         create_canvas();
 721 }
 722
 723 void Canvas::stop_fullscreen()
 724 {
 725         set_fullscreen(0);
 726         create_canvas();
 727 }
 728
 729 void Canvas::create_canvas()
 730 {
 731         int video_on = 0;
 732         lock_canvas("Canvas::create_canvas");
 733
 734         if(!get_fullscreen())
 735 // Enter windowed
 736         {
 737                 if(canvas_fullscreen)
 738                 {
 739                         video_on = canvas_fullscreen->get_video_on();
 740                         canvas_fullscreen->stop_video();
 741                         canvas_fullscreen->lock_window("Canvas::create_canvas 2");
 742                         canvas_fullscreen->hide_window();
 743                         canvas_fullscreen->unlock_window();
 744                 }
 745
 746                 if(!canvas_auxwindow && !canvas_subwindow)
 747                 {
 748                         subwindow->add_subwindow(canvas_subwindow = new CanvasOutput(this,
 749                                 view_x,
 750                                 view_y,
 751                                 view_w,
 752                                 view_h));
 753                 }
 754         }
 755         else
 756 // Enter fullscreen
 757         {
 758                 BC_WindowBase *wdw = canvas_auxwindow ?
 759                         canvas_auxwindow : canvas_subwindow;
 760                 if(wdw)
 761                 {
 762                         video_on = wdw->get_video_on();
 763                         wdw->stop_video();
 764                 }
 765
 766                 int x, y, w, h;
 767                 wdw->get_fullscreen_geometry(x, y, w, h);
 768
 769                 if( canvas_fullscreen ) {
 770                         if( x != canvas_fullscreen->get_x() ||
 771                             y != canvas_fullscreen->get_y() ||
 772                             w != canvas_fullscreen->get_w() ||
 773                             h != canvas_fullscreen->get_h() ) {
 774                                 delete canvas_fullscreen;
 775                                 canvas_fullscreen = 0;
 776                         }
 777                 }
 778                 if( !canvas_fullscreen )
 779                         canvas_fullscreen = new CanvasFullScreen(this, w, h);
 780                 canvas_fullscreen->show_window();
 781                 canvas_fullscreen->sync_display();
 782                 canvas_fullscreen->reposition_window(x, y);
 783         }
 784
 785         if( !video_on ) {
 786                 get_canvas()->lock_window("Canvas::create_canvas 1");
 787                 draw_refresh();
 788                 get_canvas()->unlock_window();
 789         }
 790
 791         if( video_on )
 792                 get_canvas()->start_video();
 793
 794         get_canvas()->lock_window("Canvas::create_canvas 2");
 795         get_canvas()->focus();
 796         get_canvas()->unlock_window();
 797
 798         unlock_canvas();
 799 }
 800
 801
 802
 803 int Canvas::cursor_leave_event_base(BC_WindowBase *caller)
 804 {
 805         int result = 0;
 806         if(cursor_inside) result = cursor_leave_event();
 807         cursor_inside = 0;
 808         return result;
 809 }
 810
 811 int Canvas::cursor_enter_event_base(BC_WindowBase *caller)
 812 {
 813         int result = 0;
 814         if(caller->is_event_win() && caller->cursor_inside())
 815         {
 816                 cursor_inside = 1;
 817                 result = cursor_enter_event();
 818         }
 819         return result;
 820 }
 821
 822 int Canvas::button_press_event_base(BC_WindowBase *caller)
 823 {
 824         if(caller->is_event_win() && caller->cursor_inside())
 825         {
 826                 return button_press_event();
 827         }
 828         return 0;
 829 }
 830
 831 int Canvas::keypress_event(BC_WindowBase *caller)
 832 {
 833         int key = caller->get_keypress();
 834         switch( key ) {
 835         case 'f':
 836                 caller->unlock_window();
 837                 if(get_fullscreen())
 838                         stop_fullscreen();
 839                 else
 840                         start_fullscreen();
 841                 caller->lock_window("Canvas::keypress_event 1");
 842                 break;
 843         case ESC:
 844                 caller->unlock_window();
 845                 if(get_fullscreen())
 846                         stop_fullscreen();
 847                 caller->lock_window("Canvas::keypress_event 2");
 848                 break;
 849         default:
 850                 return 0;
 851         }
 852         return 1;
 853 }
 854
 855 void Canvas::update_refresh(VideoDevice *device, VFrame *output_frame)
 856 {
 857         int best_color_model = output_frame->get_color_model();
 858         int use_opengl =
 859                 device->out_config->driver == PLAYBACK_X11_GL &&
 860                 output_frame->get_opengl_state() != VFrame::RAM;
 861
 862 // OpenGL does YUV->RGB in the compositing step
 863         if( use_opengl )
 864                 best_color_model = BC_RGB888;
 865         else if( BC_CModels::has_alpha(best_color_model) ) {
 866                 best_color_model =
 867                         BC_CModels::is_float(best_color_model ) ?
 868                                 BC_RGB_FLOAT :
 869                         BC_CModels::is_yuv(best_color_model ) ?
 870                                 ( BC_CModels::calculate_pixelsize(best_color_model) > 8 ?
 871                                         BC_YUV161616 : BC_YUV888 ) :
 872                                 ( BC_CModels::calculate_pixelsize(best_color_model) > 8 ?
 873                                         BC_RGB161616 : BC_RGB888 ) ;
 874         }
 875         int out_w = output_frame->get_w();
 876         int out_h = output_frame->get_h();
 877         if( refresh_frame &&
 878            (refresh_frame->get_w() != out_w ||
 879             refresh_frame->get_h() != out_h ||
 880             refresh_frame->get_color_model() != best_color_model ) ) {
 881 // x11 direct render uses BC_BGR8888, use tranfer_from to remap
 882                 delete refresh_frame;  refresh_frame = 0;
 883         }
 884
 885         if( !refresh_frame ) {
 886                 refresh_frame =
 887                         new VFrame(out_w, out_h, best_color_model);
 888         }
 889
 890         if( use_opengl ) {
 891                 get_canvas()->unlock_window();
 892                 unlock_canvas();
 893                 mwindow->playback_3d->copy_from(this, refresh_frame, output_frame, 0);
 894                 lock_canvas(" Canvas::output_refresh");
 895                 get_canvas()->lock_window(" Canvas::output_refresh");
 896         }
 897         else
 898                 refresh_frame->transfer_from(output_frame, -1);
 899 }
 900
 901 void Canvas::clear(int flash)
 902 {
 903         BC_WindowBase *cwdw = get_canvas();
 904         if( !cwdw )  return;
 905         cwdw->set_bg_color(BLACK);
 906         cwdw->clear_box(0,0, cwdw->get_w(), cwdw->get_h());
 907         if( flash ) cwdw->flash();
 908 }
 909
 910
 911 CanvasOutput::CanvasOutput(Canvas *canvas,
 912     int x,
 913     int y,
 914     int w,
 915     int h)
 916  : BC_SubWindow(x, y, w, h, BLACK)
 917 {
 918         this->canvas = canvas;
 919 }
 920
 921 CanvasOutput::~CanvasOutput()
 922 {
 923 }
 924
 925 int CanvasOutput::cursor_leave_event()
 926 {
 927         return canvas->cursor_leave_event_base(canvas->get_canvas());
 928 }
 929
 930 int CanvasOutput::cursor_enter_event()
 931 {
 932         return canvas->cursor_enter_event_base(canvas->get_canvas());
 933 }
 934
 935 int CanvasOutput::button_press_event()
 936 {
 937         return canvas->button_press_event_base(canvas->get_canvas());
 938 }
 939
 940 int CanvasOutput::button_release_event()
 941 {
 942         return canvas->button_release_event();
 943 }
 944
 945 int CanvasOutput::cursor_motion_event()
 946 {
 947         return canvas->cursor_motion_event();
 948 }
 949
 950 int CanvasOutput::keypress_event()
 951 {
 952         return canvas->keypress_event(canvas->get_canvas());
 953 }
 954
 955
 956
 957 CanvasFullScreen::CanvasFullScreen(Canvas *canvas, int w, int h)
 958  : BC_FullScreen(canvas->subwindow, w, h, BLACK, 0, 0, 0)
 959 {
 960         this->canvas = canvas;
 961 }
 962
 963 CanvasFullScreen::~CanvasFullScreen()
 964 {
 965 }
 966
 967
 968 CanvasXScroll::CanvasXScroll(EDL *edl, Canvas *canvas, int x, int y,
 969         int length, int position, int handle_length, int pixels)
 970  : BC_ScrollBar(x, y, SCROLL_HORIZ, pixels, length, position, handle_length)
 971 {
 972         this->canvas = canvas;
 973 }
 974
 975 CanvasXScroll::~CanvasXScroll()
 976 {
 977 }
 978
 979 int CanvasXScroll::handle_event()
 980 {
 981 //printf("CanvasXScroll::handle_event %d %d %d\n", get_length(), get_value(), get_handlelength());
 982         canvas->update_zoom(get_value(), canvas->get_yscroll(), canvas->get_zoom());
 983         canvas->draw_refresh();
 984         return 1;
 985 }
 986
 987
 988 CanvasYScroll::CanvasYScroll(EDL *edl, Canvas *canvas, int x, int y,
 989         int length, int position, int handle_length, int pixels)
 990  : BC_ScrollBar(x, y, SCROLL_VERT, pixels, length, position, handle_length)
 991 {
 992         this->canvas = canvas;
 993 }
 994
 995 CanvasYScroll::~CanvasYScroll()
 996 {
 997 }
 998
 999 int CanvasYScroll::handle_event()
1000 {
1001 //printf("CanvasYScroll::handle_event %d %d\n", get_value(), get_length());
1002         canvas->update_zoom(canvas->get_xscroll(), get_value(), canvas->get_zoom());
1003         canvas->draw_refresh();
1004         return 1;
1005 }
1006
1007
1008 CanvasFullScreenPopup::CanvasFullScreenPopup(Canvas *canvas)
1009  : BC_PopupMenu(0, 0, 0, "", 0)
1010 {
1011         this->canvas = canvas;
1012 }
1013
1014
1015 void CanvasFullScreenPopup::create_objects()
1016 {
1017         add_item(new CanvasSubWindowItem(canvas));
1018 }
1019
1020 void CanvasFullScreenPopup::use_cwindow()
1021 {
1022         add_item(new CanvasPopupAuto(canvas));
1023 }
1024
1025 CanvasSubWindowItem::CanvasSubWindowItem(Canvas *canvas)
1026  : BC_MenuItem(_("Windowed"), "f", 'f')
1027 {
1028         this->canvas = canvas;
1029 }
1030
1031 int CanvasSubWindowItem::handle_event()
1032 {
1033 // It isn't a problem to delete the canvas from in here because the event
1034 // dispatcher is the canvas subwindow.
1035         canvas->subwindow->unlock_window();
1036         canvas->stop_fullscreen();
1037         canvas->subwindow->lock_window("CanvasSubWindowItem::handle_event");
1038         return 1;
1039 }
1040
1041
1042 CanvasPopup::CanvasPopup(Canvas *canvas)
1043  : BC_PopupMenu(0, 0, 0, "", 0)
1044 {
1045         this->canvas = canvas;
1046 }
1047
1048 CanvasPopup::~CanvasPopup()
1049 {
1050 }
1051
1052 CanvasZoomSize::CanvasZoomSize(Canvas *canvas)
1053  : BC_MenuItem(_("Zoom..."))
1054 {
1055         this->canvas = canvas;
1056 }
1057
1058 CanvasSizeSubMenu::CanvasSizeSubMenu(CanvasZoomSize *zoom_size)
1059 {
1060         this->zoom_size = zoom_size;
1061 }
1062
1063 void CanvasPopup::create_objects()
1064 {
1065         add_item(new BC_MenuItem("-"));
1066         add_item(new CanvasFullScreenItem(canvas));
1067
1068         CanvasZoomSize *zoom_size = new CanvasZoomSize(canvas);
1069         add_item(zoom_size);
1070         CanvasSizeSubMenu *submenu = new CanvasSizeSubMenu(zoom_size);
1071         zoom_size->add_submenu(submenu);
1072
1073         submenu->add_submenuitem(new CanvasPopupSize(canvas, _("Zoom 25%"), 0.25));
1074         submenu->add_submenuitem(new CanvasPopupSize(canvas, _("Zoom 33%"), 0.33));
1075         submenu->add_submenuitem(new CanvasPopupSize(canvas, _("Zoom 50%"), 0.5));
1076         submenu->add_submenuitem(new CanvasPopupSize(canvas, _("Zoom 75%"), 0.75));
1077         submenu->add_submenuitem(new CanvasPopupSize(canvas, _("Zoom 100%"), 1.0));
1078         submenu->add_submenuitem(new CanvasPopupSize(canvas, _("Zoom 150%"), 1.5));
1079         submenu->add_submenuitem(new CanvasPopupSize(canvas, _("Zoom 200%"), 2.0));
1080         submenu->add_submenuitem(new CanvasPopupSize(canvas, _("Zoom 300%"), 3.0));
1081         submenu->add_submenuitem(new CanvasPopupSize(canvas, _("Zoom 400%"), 4.0));
1082 }
1083
1084 void CanvasPopup::use_cwindow()
1085 {
1086         add_item(new CanvasPopupAuto(canvas));
1087         add_item(new CanvasPopupResetCamera(canvas));
1088         add_item(new CanvasPopupResetProjector(canvas));
1089         add_item(new CanvasPopupCameraKeyframe(canvas));
1090         add_item(new CanvasPopupProjectorKeyframe(canvas));
1091         add_item(toggle_controls = new CanvasToggleControls(canvas));
1092 }
1093
1094 void CanvasPopup::use_rwindow()
1095 {
1096         add_item(new CanvasPopupResetTranslation(canvas));
1097 }
1098
1099 void CanvasPopup::use_vwindow()
1100 {
1101         add_item(new CanvasPopupRemoveSource(canvas));
1102 }
1103
1104
1105 CanvasPopupAuto::CanvasPopupAuto(Canvas *canvas)
1106  : BC_MenuItem(_("Zoom Auto"))
1107 {
1108         this->canvas = canvas;
1109 }
1110
1111 int CanvasPopupAuto::handle_event()
1112 {
1113         canvas->zoom_auto();
1114         return 1;
1115 }
1116
1117
1118 CanvasPopupSize::CanvasPopupSize(Canvas *canvas, char *text, float percentage)
1119  : BC_MenuItem(text)
1120 {
1121         this->canvas = canvas;
1122         this->percentage = percentage;
1123 }
1124 CanvasPopupSize::~CanvasPopupSize()
1125 {
1126 }
1127 int CanvasPopupSize::handle_event()
1128 {
1129         canvas->zoom_resize_window(percentage);
1130         return 1;
1131 }
1132
1133
1134
1135 CanvasPopupResetCamera::CanvasPopupResetCamera(Canvas *canvas)
1136  : BC_MenuItem(_("Reset camera"), _("F11"), KEY_F11)
1137 {
1138         this->canvas = canvas;
1139 }
1140 int CanvasPopupResetCamera::handle_event()
1141 {
1142         canvas->reset_camera();
1143         return 1;
1144 }
1145
1146 CanvasPopupResetProjector::CanvasPopupResetProjector(Canvas *canvas)
1147  : BC_MenuItem(_("Reset projector"), _("F12"), KEY_F12)
1148 {
1149         this->canvas = canvas;
1150 }
1151 int CanvasPopupResetProjector::handle_event()
1152 {
1153         canvas->reset_projector();
1154         return 1;
1155 }
1156
1157
1158 CanvasPopupCameraKeyframe::CanvasPopupCameraKeyframe(Canvas *canvas)
1159  : BC_MenuItem(_("Camera keyframe"), _("Shift-F11"), KEY_F11)
1160 {
1161         this->canvas = canvas;
1162         set_shift(1);
1163 }
1164 int CanvasPopupCameraKeyframe::handle_event()
1165 {
1166         canvas->camera_keyframe();
1167         return 1;
1168 }
1169
1170 CanvasPopupProjectorKeyframe::CanvasPopupProjectorKeyframe(Canvas *canvas)
1171  : BC_MenuItem(_("Projector keyframe"), _("Shift-F12"), KEY_F12)
1172 {
1173         this->canvas = canvas;
1174         set_shift(1);
1175 }
1176 int CanvasPopupProjectorKeyframe::handle_event()
1177 {
1178         canvas->projector_keyframe();
1179         return 1;
1180 }
1181
1182
1183
1184 CanvasPopupResetTranslation::CanvasPopupResetTranslation(Canvas *canvas)
1185  : BC_MenuItem(_("Reset translation"))
1186 {
1187         this->canvas = canvas;
1188 }
1189 int CanvasPopupResetTranslation::handle_event()
1190 {
1191         canvas->reset_translation();
1192         return 1;
1193 }
1194
1195
1196
1197 CanvasToggleControls::CanvasToggleControls(Canvas *canvas)
1198  : BC_MenuItem(calculate_text(canvas->get_cwindow_controls()))
1199 {
1200         this->canvas = canvas;
1201 }
1202 int CanvasToggleControls::handle_event()
1203 {
1204         canvas->toggle_controls();
1205         set_text(calculate_text(canvas->get_cwindow_controls()));
1206         return 1;
1207 }
1208
1209 char* CanvasToggleControls::calculate_text(int cwindow_controls)
1210 {
1211         if(!cwindow_controls)
1212                 return _("Show controls");
1213         else
1214                 return _("Hide controls");
1215 }
1216
1217
1218
1219
1220
1221
1222
1223 CanvasFullScreenItem::CanvasFullScreenItem(Canvas *canvas)
1224  : BC_MenuItem(_("Fullscreen"), "f", 'f')
1225 {
1226         this->canvas = canvas;
1227 }
1228 int CanvasFullScreenItem::handle_event()
1229 {
1230         canvas->subwindow->unlock_window();
1231         canvas->start_fullscreen();
1232         canvas->subwindow->lock_window("CanvasFullScreenItem::handle_event");
1233         return 1;
1234 }
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244 CanvasPopupRemoveSource::CanvasPopupRemoveSource(Canvas *canvas)
1245  : BC_MenuItem(_("Close source"))
1246 {
1247         this->canvas = canvas;
1248 }
1249 int CanvasPopupRemoveSource::handle_event()
1250 {
1251         canvas->close_source();
1252         return 1;
1253 }
1254
1255