cinelerra-5.1/cinelerra/canvas.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 2008 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         cursor_inside = 0;
  92 }
  93
  94 void Canvas::lock_canvas(const char *location)
  95 {
  96         canvas_lock->lock(location);
  97 }
  98
  99 void Canvas::unlock_canvas()
 100 {
 101         canvas_lock->unlock();
 102 }
 103
 104 int Canvas::is_locked()
 105 {
 106         return canvas_lock->is_locked();
 107 }
 108
 109
 110 BC_WindowBase* Canvas::get_canvas()
 111 {
 112         if(get_fullscreen() && canvas_fullscreen)
 113                 return canvas_fullscreen;
 114         return canvas_auxwindow ? canvas_auxwindow : canvas_subwindow;
 115 }
 116
 117 void Canvas::use_auxwindow(BC_WindowBase *aux)
 118 {
 119         canvas_auxwindow = aux;
 120 }
 121
 122 void Canvas::use_cwindow()
 123 {
 124         canvas_menu->use_cwindow();
 125         fullscreen_menu->use_cwindow();
 126 }
 127
 128 void Canvas::use_rwindow()
 129 {
 130         canvas_menu->use_rwindow();
 131 }
 132
 133 void Canvas::use_vwindow()
 134 {
 135         canvas_menu->use_vwindow();
 136 }
 137
 138 // Get dimensions given a zoom
 139 void Canvas::calculate_sizes(float aspect_ratio,
 140         int output_w,
 141         int output_h,
 142         float zoom,
 143         int &w,
 144         int &h)
 145 {
 146 // Horizontal stretch
 147         if((float)output_w / output_h <= aspect_ratio)
 148         {
 149                 w = (int)((float)output_h * aspect_ratio * zoom);
 150                 h = (int)((float)output_h * zoom);
 151         }
 152         else
 153 // Vertical stretch
 154         {
 155                 h = (int)((float)output_w / aspect_ratio * zoom);
 156                 w = (int)((float)output_w * zoom);
 157         }
 158 }
 159
 160 float Canvas::get_x_offset(EDL *edl,
 161         int single_channel,
 162         float zoom_x,
 163         float conformed_w,
 164         float conformed_h)
 165 {
 166         if(use_scrollbars)
 167         {
 168                 if(xscroll)
 169                 {
 170 // If the projection is smaller than the canvas, this forces it in the center.
 171 //                      if(conformed_w < w_visible)
 172 //                              return -(float)(w_visible - conformed_w) / 2;
 173
 174                         return (float)get_xscroll();
 175                 }
 176                 else
 177                         return ((float)-get_canvas()->get_w() / zoom_x +
 178                                 edl->session->output_w) / 2;
 179         }
 180         else
 181         {
 182                 int out_w, out_h;
 183                 int canvas_w = get_canvas()->get_w();
 184                 int canvas_h = get_canvas()->get_h();
 185                 out_w = canvas_w;
 186                 out_h = canvas_h;
 187
 188                 if((float)out_w / out_h > conformed_w / conformed_h)
 189                 {
 190                         out_w = (int)(out_h * conformed_w / conformed_h + 0.5);
 191                 }
 192
 193                 if(out_w < canvas_w)
 194                         return -(canvas_w - out_w) / 2 / zoom_x;
 195         }
 196
 197         return 0;
 198 }
 199
 200 float Canvas::get_y_offset(EDL *edl,
 201         int single_channel,
 202         float zoom_y,
 203         float conformed_w,
 204         float conformed_h)
 205 {
 206         if(use_scrollbars)
 207         {
 208                 if(yscroll)
 209                 {
 210 // If the projection is smaller than the canvas, this forces it in the center.
 211 //                      if(conformed_h < h_visible)
 212 //                              return -(float)(h_visible - conformed_h) / 2;
 213
 214                         return (float)get_yscroll();
 215                 }
 216                 else
 217                         return ((float)-get_canvas()->get_h() / zoom_y +
 218                                 edl->session->output_h) / 2;
 219         }
 220         else
 221         {
 222                 int out_w, out_h;
 223                 int canvas_w = get_canvas()->get_w();
 224                 int canvas_h = get_canvas()->get_h();
 225                 out_w = canvas_w;
 226                 out_h = canvas_h;
 227
 228                 if((float)out_w / out_h <= conformed_w / conformed_h)
 229                 {
 230                         out_h = (int)((float)out_w / (conformed_w / conformed_h) + 0.5);
 231                 }
 232
 233 //printf("Canvas::get_y_offset 1 %d %d %f\n", out_h, canvas_h, -((float)canvas_h - out_h) / 2);
 234                 if(out_h < canvas_h)
 235                         return -((float)canvas_h - out_h) / 2 / zoom_y;
 236         }
 237
 238         return 0;
 239 }
 240
 241 // This may not be used anymore
 242 void Canvas::check_boundaries(EDL *edl, int &x, int &y, float &zoom)
 243 {
 244         if(x + w_visible > w_needed) x = w_needed - w_visible;
 245         if(y + h_visible > h_needed) y = h_needed - h_visible;
 246
 247         if(x < 0) x = 0;
 248         if(y < 0) y = 0;
 249 }
 250
 251 void Canvas::update_scrollbars(int flush)
 252 {
 253         if(use_scrollbars)
 254         {
 255                 if(xscroll) xscroll->update_length(w_needed, get_xscroll(), w_visible, flush);
 256                 if(yscroll) yscroll->update_length(h_needed, get_yscroll(), h_visible, flush);
 257         }
 258 }
 259
 260 void Canvas::get_zooms(EDL *edl,
 261         int single_channel,
 262         float &zoom_x,
 263         float &zoom_y,
 264         float &conformed_w,
 265         float &conformed_h)
 266 {
 267         edl->calculate_conformed_dimensions(single_channel,
 268                 conformed_w,
 269                 conformed_h);
 270
 271         if(use_scrollbars)
 272         {
 273                 zoom_x = get_zoom() *
 274                         conformed_w /
 275                         edl->session->output_w;
 276                 zoom_y = get_zoom() *
 277                         conformed_h /
 278                         edl->session->output_h;
 279         }
 280         else
 281         {
 282                 int out_w, out_h;
 283                 int canvas_w = get_canvas()->get_w();
 284                 int canvas_h = get_canvas()->get_h();
 285
 286                 out_w = canvas_w;
 287                 out_h = canvas_h;
 288
 289                 if((float)out_w / out_h > conformed_w / conformed_h)
 290                 {
 291                         out_w = (int)((float)out_h * conformed_w / conformed_h + 0.5);
 292                 }
 293                 else
 294                 {
 295                         out_h = (int)((float)out_w / (conformed_w / conformed_h) + 0.5);
 296                 }
 297
 298                 zoom_x = (float)out_w / edl->session->output_w;
 299                 zoom_y = (float)out_h / edl->session->output_h;
 300 //printf("get zooms 2 %d %d %f %f\n", canvas_w, canvas_h, conformed_w, conformed_h);
 301         }
 302 }
 303
 304 // Convert a coordinate on the canvas to a coordinate on the output
 305 void Canvas::canvas_to_output(EDL *edl, int single_channel, float &x, float &y)
 306 {
 307         float zoom_x, zoom_y, conformed_w, conformed_h;
 308         get_zooms(edl, single_channel, zoom_x, zoom_y, conformed_w, conformed_h);
 309
 310 //printf("Canvas::canvas_to_output y=%f zoom_y=%f y_offset=%f\n",
 311 //      y, zoom_y, get_y_offset(edl, single_channel, zoom_y, conformed_w, conformed_h));
 312
 313         x = (float)x / zoom_x + get_x_offset(edl, single_channel, zoom_x, conformed_w, conformed_h);
 314         y = (float)y / zoom_y + get_y_offset(edl, single_channel, zoom_y, conformed_w, conformed_h);
 315 }
 316
 317 void Canvas::output_to_canvas(EDL *edl, int single_channel, float &x, float &y)
 318 {
 319         float zoom_x, zoom_y, conformed_w, conformed_h;
 320         get_zooms(edl, single_channel, zoom_x, zoom_y, conformed_w, conformed_h);
 321
 322 //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));
 323
 324         x = (float)zoom_x * (x - get_x_offset(edl, single_channel, zoom_x, conformed_w, conformed_h));
 325         y = (float)zoom_y * (y - get_y_offset(edl, single_channel, zoom_y, conformed_w, conformed_h));
 326 }
 327
 328
 329
 330 void Canvas::get_transfers(EDL *edl,
 331         float &output_x1, float &output_y1, float &output_x2, float &output_y2,
 332         float &canvas_x1, float &canvas_y1, float &canvas_x2, float &canvas_y2,
 333         int canvas_w, int canvas_h)
 334 {
 335 // printf("Canvas::get_transfers %d %d\n", canvas_w,
 336 //              canvas_h);
 337 // automatic canvas size detection
 338         if(canvas_w < 0) canvas_w = get_canvas()->get_w();
 339         if(canvas_h < 0) canvas_h = get_canvas()->get_h();
 340
 341 // Canvas is zoomed to a portion of the output frame
 342         if(use_scrollbars)
 343         {
 344                 float in_x1, in_y1, in_x2, in_y2;
 345                 float out_x1, out_y1, out_x2, out_y2;
 346                 float zoom_x, zoom_y, conformed_w, conformed_h;
 347
 348                 get_zooms(edl, 0, zoom_x, zoom_y, conformed_w, conformed_h);
 349                 out_x1 = 0;
 350                 out_y1 = 0;
 351                 out_x2 = canvas_w;
 352                 out_y2 = canvas_h;
 353                 in_x1 = 0;
 354                 in_y1 = 0;
 355                 in_x2 = canvas_w;
 356                 in_y2 = canvas_h;
 357
 358                 canvas_to_output(edl, 0, in_x1, in_y1);
 359                 canvas_to_output(edl, 0, in_x2, in_y2);
 360
 361 //printf("Canvas::get_transfers 1 %.0f %.0f %.0f %.0f -> %.0f %.0f %.0f %.0f\n",
 362 //in_x1, in_y1, in_x2, in_y2, out_x1, out_y1, out_x2, out_y2);
 363
 364                 if(in_x1 < 0)
 365                 {
 366                         out_x1 += -in_x1 * zoom_x;
 367                         in_x1 = 0;
 368                 }
 369
 370                 if(in_y1 < 0)
 371                 {
 372                         out_y1 += -in_y1 * zoom_y;
 373                         in_y1 = 0;
 374                 }
 375
 376                 int output_w = get_output_w(edl);
 377                 int output_h = get_output_h(edl);
 378
 379                 if(in_x2 > output_w)
 380                 {
 381                         out_x2 -= (in_x2 - output_w) * zoom_x;
 382                         in_x2 = output_w;
 383                 }
 384
 385                 if(in_y2 > output_h)
 386                 {
 387                         out_y2 -= (in_y2 - output_h) * zoom_y;
 388                         in_y2 = output_h;
 389                 }
 390 // printf("Canvas::get_transfers 2 %.0f %.0f %.0f %.0f -> %.0f %.0f %.0f %.0f\n",
 391 //                      in_x1, in_y1, in_x2, in_y2, out_x1, out_y1, out_x2, out_y2);
 392
 393                 output_x1 = in_x1;
 394                 output_y1 = in_y1;
 395                 output_x2 = in_x2;
 396                 output_y2 = in_y2;
 397                 canvas_x1 = out_x1;
 398                 canvas_y1 = out_y1;
 399                 canvas_x2 = out_x2;
 400                 canvas_y2 = out_y2;
 401
 402 // Center on canvas
 403 //              if(!scrollbars_exist())
 404 //              {
 405 //                      out_x = canvas_w / 2 - out_w / 2;
 406 //                      out_y = canvas_h / 2 - out_h / 2;
 407 //              }
 408
 409         }
 410         else
 411 // The output frame is normalized to the canvas
 412         {
 413 // Default canvas coords fill the entire canvas
 414                 canvas_x1 = 0;
 415                 canvas_y1 = 0;
 416                 canvas_x2 = canvas_w;
 417                 canvas_y2 = canvas_h;
 418
 419                 if(edl)
 420                 {
 421 // Use EDL aspect ratio to shrink one of the canvas dimensions
 422                         float out_w = canvas_x2 - canvas_x1;
 423                         float out_h = canvas_y2 - canvas_y1;
 424                         if(out_w / out_h > edl->get_aspect_ratio())
 425                         {
 426                                 out_w = (int)(out_h * edl->get_aspect_ratio() + 0.5);
 427                                 canvas_x1 = canvas_w / 2 - out_w / 2;
 428                         }
 429                         else
 430                         {
 431                                 out_h = (int)(out_w / edl->get_aspect_ratio() + 0.5);
 432                                 canvas_y1 = canvas_h / 2 - out_h / 2;
 433                         }
 434                         canvas_x2 = canvas_x1 + out_w;
 435                         canvas_y2 = canvas_y1 + out_h;
 436
 437 // Get output frame coords from EDL
 438                         output_x1 = 0;
 439                         output_y1 = 0;
 440                         output_x2 = get_output_w(edl);
 441                         output_y2 = get_output_h(edl);
 442                 }
 443                 else
 444 // No EDL to get aspect ratio or output frame coords from
 445                 {
 446                         output_x1 = 0;
 447                         output_y1 = 0;
 448                         output_x2 = this->output_w;
 449                         output_y2 = this->output_h;
 450                 }
 451         }
 452
 453 // Clamp to minimum value
 454         output_x1 = MAX(0, output_x1);
 455         output_y1 = MAX(0, output_y1);
 456         output_x2 = MAX(output_x1, output_x2);
 457         output_y2 = MAX(output_y1, output_y2);
 458         canvas_x1 = MAX(0, canvas_x1);
 459         canvas_y1 = MAX(0, canvas_y1);
 460         canvas_x2 = MAX(canvas_x1, canvas_x2);
 461         canvas_y2 = MAX(canvas_y1, canvas_y2);
 462 // printf("Canvas::get_transfers 2 %f,%f %f,%f -> %f,%f %f,%f\n",
 463 // output_x1,
 464 // output_y1,
 465 // output_x2,
 466 // output_y2,
 467 // canvas_x1,
 468 // canvas_y1,
 469 // canvas_x2,
 470 // canvas_y2);
 471 }
 472
 473 int Canvas::scrollbars_exist()
 474 {
 475         return(use_scrollbars && (xscroll || yscroll));
 476 }
 477
 478 int Canvas::get_output_w(EDL *edl)
 479 {
 480         return !edl ? 0 : edl->session->output_w;
 481 }
 482
 483 int Canvas::get_output_h(EDL *edl)
 484 {
 485         return !edl ? 0 : edl->session->output_h;
 486 }
 487
 488
 489
 490 void Canvas::get_scrollbars(EDL *edl,
 491         int &canvas_x,
 492         int &canvas_y,
 493         int &canvas_w,
 494         int &canvas_h)
 495 {
 496         int need_xscroll = 0;
 497         int need_yscroll = 0;
 498 //      int done = 0;
 499         float zoom_x, zoom_y, conformed_w, conformed_h;
 500
 501         if(edl)
 502         {
 503                 w_needed = edl->session->output_w;
 504                 h_needed = edl->session->output_h;
 505                 w_visible = w_needed;
 506                 h_visible = h_needed;
 507         }
 508 //printf("Canvas::get_scrollbars 1 %d %d\n", get_xscroll(), get_yscroll());
 509
 510         if( use_scrollbars ) {
 511                 w_needed = edl->session->output_w;
 512                 h_needed = edl->session->output_h;
 513                 get_zooms(edl, 0, zoom_x, zoom_y, conformed_w, conformed_h);
 514 //printf("Canvas::get_scrollbars 2 %d %d\n", get_xscroll(), get_yscroll());
 515
 516                 w_visible = (int)(canvas_w / zoom_x);
 517                 h_visible = (int)(canvas_h / zoom_y);
 518                 if( w_needed > w_visible ) {
 519                         need_xscroll = 1;
 520                         canvas_h -= BC_ScrollBar::get_span(SCROLL_HORIZ);
 521                 }
 522
 523                 if( h_needed > h_visible ) {
 524                         need_yscroll = 1;
 525                         canvas_w -= BC_ScrollBar::get_span(SCROLL_VERT);
 526                 }
 527 //printf("Canvas::get_scrollbars %d %d %d %d %d %d\n", canvas_w, canvas_h, w_needed, h_needed, w_visible, h_visible);
 528 //printf("Canvas::get_scrollbars 3 %d %d\n", get_xscroll(), get_yscroll());
 529
 530                 w_visible = (int)(canvas_w / zoom_x);
 531                 h_visible = (int)(canvas_h / zoom_y);
 532         }
 533
 534         if( need_xscroll ) {
 535                 if( !xscroll ) {
 536                         xscroll = new CanvasXScroll(edl, this, canvas_x, canvas_y + canvas_h,
 537                                         w_needed, get_xscroll(), w_visible, canvas_w);
 538                         subwindow->add_subwindow(xscroll);
 539                         xscroll->show_window(0);
 540                 }
 541                 else
 542                         xscroll->reposition_window(canvas_x, canvas_y + canvas_h, canvas_w);
 543
 544                 if( xscroll->get_length() != w_needed ||
 545                     xscroll->get_handlelength() != w_visible )
 546                         xscroll->update_length(w_needed, get_xscroll(), w_visible, 0);
 547         }
 548         else if( xscroll ) {
 549                 delete xscroll;  xscroll = 0;
 550         }
 551 //printf("Canvas::get_scrollbars 4 %d %d\n", get_xscroll(), get_yscroll());
 552
 553         if( need_yscroll ) {
 554                 if( !yscroll ) {
 555                         yscroll = new CanvasYScroll(edl, this, canvas_x + canvas_w, canvas_y,
 556                                         h_needed, get_yscroll(), h_visible, canvas_h);
 557                         subwindow->add_subwindow(yscroll);
 558                         yscroll->show_window(0);
 559                 }
 560                 else
 561                         yscroll->reposition_window(canvas_x + canvas_w, canvas_y, canvas_h);
 562
 563                 if( yscroll->get_length() != edl->session->output_h ||
 564                     yscroll->get_handlelength() != h_visible )
 565                         yscroll->update_length(h_needed, get_yscroll(), h_visible, 0);
 566         }
 567         else if( yscroll ) {
 568                 delete yscroll;  yscroll = 0;
 569         }
 570 //printf("Canvas::get_scrollbars 5 %d %d\n", get_xscroll(), get_yscroll());
 571 }
 572
 573 void Canvas::reposition_window(EDL *edl, int x, int y, int w, int h)
 574 {
 575         this->x = view_x = x;  this->y = view_y = y;
 576         this->w = view_w = w;  this->h = view_h = h;
 577 //printf("Canvas::reposition_window 1\n");
 578         get_scrollbars(edl, view_x, view_y, view_w, view_h);
 579 //printf("Canvas::reposition_window %d %d %d %d\n", view_x, view_y, view_w, view_h);
 580         if(canvas_subwindow)
 581         {
 582                 canvas_subwindow->reposition_window(view_x, view_y, view_w, view_h);
 583
 584 // Need to clear out the garbage in the back
 585                 if(canvas_subwindow->get_video_on())
 586                 {
 587                         canvas_subwindow->set_color(BLACK);
 588                         canvas_subwindow->draw_box(0, 0,
 589                                 get_canvas()->get_w(), get_canvas()->get_h());
 590                         canvas_subwindow->flash(0);
 591                 }
 592         }
 593
 594
 595         draw_refresh(0);
 596 }
 597
 598 void Canvas::set_cursor(int cursor)
 599 {
 600         get_canvas()->set_cursor(cursor, 0, 1);
 601 }
 602
 603 int Canvas::get_cursor_x()
 604 {
 605         return get_canvas()->get_cursor_x();
 606 }
 607
 608 int Canvas::get_cursor_y()
 609 {
 610         return get_canvas()->get_cursor_y();
 611 }
 612
 613 int Canvas::get_buttonpress()
 614 {
 615         return get_canvas()->get_buttonpress();
 616 }
 617
 618
 619 void Canvas::create_objects(EDL *edl)
 620 {
 621         view_x = x;
 622         view_y = y;
 623         view_w = w;
 624         view_h = h;
 625         get_scrollbars(edl, view_x, view_y, view_w, view_h);
 626
 627         subwindow->unlock_window();
 628         create_canvas();
 629         subwindow->lock_window("Canvas::create_objects");
 630
 631         subwindow->add_subwindow(canvas_menu = new CanvasPopup(this));
 632         canvas_menu->create_objects();
 633
 634         subwindow->add_subwindow(fullscreen_menu = new CanvasFullScreenPopup(this));
 635         fullscreen_menu->create_objects();
 636
 637 }
 638
 639 int Canvas::button_press_event()
 640 {
 641         int result = 0;
 642
 643         if(get_canvas()->get_buttonpress() == 3)
 644         {
 645                 if(get_fullscreen())
 646                         fullscreen_menu->activate_menu();
 647                 else
 648                         canvas_menu->activate_menu();
 649                 result = 1;
 650         }
 651
 652         return result;
 653 }
 654
 655 void Canvas::start_single()
 656 {
 657         is_processing = 1;
 658         status_event();
 659 }
 660
 661 void Canvas::stop_single()
 662 {
 663         is_processing = 0;
 664         status_event();
 665 }
 666
 667 void Canvas::start_video()
 668 {
 669         if(get_canvas())
 670         {
 671                 get_canvas()->start_video();
 672                 status_event();
 673         }
 674 }
 675
 676 void Canvas::stop_video()
 677 {
 678         if(get_canvas())
 679         {
 680                 get_canvas()->stop_video();
 681                 status_event();
 682         }
 683 }
 684
 685
 686 void Canvas::start_fullscreen()
 687 {
 688         set_fullscreen(1);
 689         create_canvas();
 690 }
 691
 692 void Canvas::stop_fullscreen()
 693 {
 694         set_fullscreen(0);
 695         create_canvas();
 696 }
 697
 698 void Canvas::create_canvas()
 699 {
 700         int video_on = 0;
 701         lock_canvas("Canvas::create_canvas");
 702
 703
 704         if(!get_fullscreen())
 705 // Enter windowed
 706         {
 707                 if(canvas_fullscreen)
 708                 {
 709                         video_on = canvas_fullscreen->get_video_on();
 710                         canvas_fullscreen->stop_video();
 711                         canvas_fullscreen->lock_window("Canvas::create_canvas 2");
 712                         canvas_fullscreen->hide_window();
 713                         canvas_fullscreen->unlock_window();
 714                 }
 715
 716                 if(!canvas_auxwindow && !canvas_subwindow)
 717                 {
 718                         subwindow->add_subwindow(canvas_subwindow = new CanvasOutput(this,
 719                                 view_x,
 720                                 view_y,
 721                                 view_w,
 722                                 view_h));
 723                 }
 724         }
 725         else
 726 // Enter fullscreen
 727         {
 728                 BC_WindowBase *wdw = canvas_auxwindow ?
 729                         canvas_auxwindow : canvas_subwindow;
 730                 if(wdw)
 731                 {
 732                         video_on = wdw->get_video_on();
 733                         wdw->stop_video();
 734                 }
 735
 736                 int x = subwindow->get_screen_x(0, -1);
 737                 int y = subwindow->get_screen_y(0, -1);
 738                 int w = root_w;
 739                 int h = root_h;
 740                 if( mwindow->screens == 1 && root_w > scr_w0 ) {
 741                         // Xinerama
 742                         if( subwindow->get_x() >= scr_w0 ) {
 743                                 // assumes right side is the big one
 744                                 w = root_w - scr_w0;
 745                                 h = root_h;
 746                         }
 747                         else {
 748                                 // use same aspect ratio to compute left height
 749                                 w = scr_w0;
 750                                 h = (w*root_h) / (root_w-scr_w0);
 751                         }
 752                 }
 753
 754                 if( canvas_fullscreen )
 755                 {
 756                         if( x != canvas_fullscreen->get_x() ||
 757                             y != canvas_fullscreen->get_y() ||
 758                             w != canvas_fullscreen->get_w() ||
 759                             h != canvas_fullscreen->get_h() ) {
 760                                 delete canvas_fullscreen;
 761                                 canvas_fullscreen = 0;
 762                         }
 763                 }
 764                 if(!canvas_fullscreen)
 765                 {
 766                         canvas_fullscreen = new CanvasFullScreen(this, w, h);
 767                 }
 768                 else
 769                 {
 770                         canvas_fullscreen->reposition_window(x, y);
 771                         canvas_fullscreen->show_window();
 772                 }
 773         }
 774
 775
 776         if(!video_on)
 777         {
 778                 get_canvas()->lock_window("Canvas::create_canvas 1");
 779                 draw_refresh();
 780                 get_canvas()->unlock_window();
 781         }
 782
 783         if(video_on) get_canvas()->start_video();
 784
 785         unlock_canvas();
 786 }
 787
 788
 789
 790 int Canvas::cursor_leave_event_base(BC_WindowBase *caller)
 791 {
 792         int result = 0;
 793         if(cursor_inside) result = cursor_leave_event();
 794         cursor_inside = 0;
 795         return result;
 796 }
 797
 798 int Canvas::cursor_enter_event_base(BC_WindowBase *caller)
 799 {
 800         int result = 0;
 801         if(caller->is_event_win() && caller->cursor_inside())
 802         {
 803                 cursor_inside = 1;
 804                 result = cursor_enter_event();
 805         }
 806         return result;
 807 }
 808
 809 int Canvas::button_press_event_base(BC_WindowBase *caller)
 810 {
 811         if(caller->is_event_win() && caller->cursor_inside())
 812         {
 813                 return button_press_event();
 814         }
 815         return 0;
 816 }
 817
 818 int Canvas::keypress_event(BC_WindowBase *caller)
 819 {
 820         int caller_is_canvas = (caller == get_canvas());
 821         int key = caller->get_keypress();
 822         switch( key ) {
 823         case 'f':
 824                 caller->unlock_window();
 825                 if(get_fullscreen())
 826                         stop_fullscreen();
 827                 else
 828                         start_fullscreen();
 829                 if(!caller_is_canvas) caller->lock_window("Canvas::keypress_event 1");
 830                 break;
 831         case ESC:
 832                 caller->unlock_window();
 833                 if(get_fullscreen())
 834                         stop_fullscreen();
 835                 if(!caller_is_canvas) caller->lock_window("Canvas::keypress_event 2");
 836                 break;
 837         default:
 838                 return 0;
 839         }
 840         return 1;
 841 }
 842
 843 void Canvas::update_refresh(VideoDevice *device, VFrame *output_frame)
 844 {
 845         int best_color_model = output_frame->get_color_model();
 846         int use_opengl =
 847                 device->out_config->driver == PLAYBACK_X11_GL &&
 848                 output_frame->get_opengl_state() == VFrame::SCREEN;
 849
 850 // OpenGL does YUV->RGB in the compositing step
 851         if( use_opengl )
 852                 best_color_model = BC_RGB888;
 853
 854         if( refresh_frame &&
 855            (refresh_frame->get_w() != device->out_w ||
 856             refresh_frame->get_h() != device->out_h ||
 857             refresh_frame->get_color_model() != best_color_model) ) {
 858                 delete refresh_frame;  refresh_frame = 0;
 859         }
 860
 861         if( !refresh_frame ) {
 862                 refresh_frame =
 863                         new VFrame(device->out_w, device->out_h, best_color_model);
 864         }
 865
 866         if( use_opengl ) {
 867                 get_canvas()->unlock_window();
 868                 unlock_canvas();
 869
 870                 mwindow->playback_3d->copy_from(this, refresh_frame, output_frame, 0);
 871                 lock_canvas(" Canvas::output_refresh");
 872                 get_canvas()->lock_window(" Canvas::output_refresh");
 873         }
 874         else
 875                 refresh_frame->copy_from(output_frame);
 876 }
 877
 878
 879
 880
 881
 882 CanvasOutput::CanvasOutput(Canvas *canvas,
 883     int x,
 884     int y,
 885     int w,
 886     int h)
 887  : BC_SubWindow(x, y, w, h, BLACK)
 888 {
 889         this->canvas = canvas;
 890 }
 891
 892 CanvasOutput::~CanvasOutput()
 893 {
 894 }
 895
 896 int CanvasOutput::cursor_leave_event()
 897 {
 898         return canvas->cursor_leave_event_base(this);
 899 }
 900
 901 int CanvasOutput::cursor_enter_event()
 902 {
 903         return canvas->cursor_enter_event_base(this);
 904 }
 905
 906 int CanvasOutput::button_press_event()
 907 {
 908         return canvas->button_press_event_base(this);
 909 }
 910
 911 int CanvasOutput::button_release_event()
 912 {
 913         return canvas->button_release_event();
 914 }
 915
 916 int CanvasOutput::cursor_motion_event()
 917 {
 918         return canvas->cursor_motion_event();
 919 }
 920
 921 int CanvasOutput::keypress_event()
 922 {
 923         return canvas->keypress_event(this);
 924 }
 925
 926
 927
 928
 929
 930
 931
 932
 933
 934
 935
 936
 937
 938 CanvasFullScreen::CanvasFullScreen(Canvas *canvas,
 939     int w,
 940     int h)
 941  : BC_FullScreen(canvas->subwindow,
 942         w,
 943         h,
 944         BLACK,
 945         0,
 946         0,
 947         0)
 948 {
 949         this->canvas = canvas;
 950 }
 951
 952 CanvasFullScreen::~CanvasFullScreen()
 953 {
 954 }
 955
 956
 957
 958
 959
 960
 961
 962
 963
 964
 965
 966
 967
 968 CanvasXScroll::CanvasXScroll(EDL *edl,
 969         Canvas *canvas,
 970     int x,
 971     int y,
 972         int length,
 973         int position,
 974         int handle_length,
 975     int pixels)
 976  : BC_ScrollBar(x,
 977                 y,
 978                 SCROLL_HORIZ,
 979                 pixels,
 980                 length,
 981                 position,
 982                 handle_length)
 983 {
 984         this->canvas = canvas;
 985 }
 986
 987 CanvasXScroll::~CanvasXScroll()
 988 {
 989 }
 990
 991 int CanvasXScroll::handle_event()
 992 {
 993 //printf("CanvasXScroll::handle_event %d %d %d\n", get_length(), get_value(), get_handlelength());
 994         canvas->update_zoom(get_value(), canvas->get_yscroll(), canvas->get_zoom());
 995         canvas->draw_refresh();
 996         return 1;
 997 }
 998
 999
1000
1001
1002
1003
1004 CanvasYScroll::CanvasYScroll(EDL *edl,
1005         Canvas *canvas,
1006     int x,
1007     int y,
1008         int length,
1009         int position,
1010         int handle_length,
1011     int pixels)
1012  : BC_ScrollBar(x,
1013                 y,
1014                 SCROLL_VERT,
1015                 pixels,
1016                 length,
1017                 position,
1018                 handle_length)
1019 {
1020         this->canvas = canvas;
1021 }
1022
1023 CanvasYScroll::~CanvasYScroll()
1024 {
1025 }
1026
1027 int CanvasYScroll::handle_event()
1028 {
1029 //printf("CanvasYScroll::handle_event %d %d\n", get_value(), get_length());
1030         canvas->update_zoom(canvas->get_xscroll(), get_value(), canvas->get_zoom());
1031         canvas->draw_refresh();
1032         return 1;
1033 }
1034
1035
1036
1037
1038
1039
1040 CanvasFullScreenPopup::CanvasFullScreenPopup(Canvas *canvas)
1041  : BC_PopupMenu(0, 0, 0, "", 0)
1042 {
1043         this->canvas = canvas;
1044 }
1045
1046
1047 void CanvasFullScreenPopup::create_objects()
1048 {
1049         add_item(new CanvasSubWindowItem(canvas));
1050 }
1051
1052 void CanvasFullScreenPopup::use_cwindow()
1053 {
1054         add_item(new CanvasPopupAuto(canvas));
1055 }
1056
1057 CanvasSubWindowItem::CanvasSubWindowItem(Canvas *canvas)
1058  : BC_MenuItem(_("Windowed"), "f", 'f')
1059 {
1060         this->canvas = canvas;
1061 }
1062
1063 int CanvasSubWindowItem::handle_event()
1064 {
1065 // It isn't a problem to delete the canvas from in here because the event
1066 // dispatcher is the canvas subwindow.
1067         canvas->subwindow->unlock_window();
1068         canvas->stop_fullscreen();
1069         canvas->subwindow->lock_window("CanvasSubWindowItem::handle_event");
1070         return 1;
1071 }
1072
1073
1074
1075
1076
1077
1078
1079
1080 CanvasPopup::CanvasPopup(Canvas *canvas)
1081  : BC_PopupMenu(0, 0, 0, "", 0)
1082 {
1083         this->canvas = canvas;
1084 }
1085
1086 CanvasPopup::~CanvasPopup()
1087 {
1088 }
1089
1090 void CanvasPopup::create_objects()
1091 {
1092         add_item(new BC_MenuItem("-"));
1093         add_item(new CanvasFullScreenItem(canvas));
1094         add_item(new CanvasPopupSize(canvas, _("Zoom 25%"), 0.25));
1095         add_item(new CanvasPopupSize(canvas, _("Zoom 33%"), 0.33));
1096         add_item(new CanvasPopupSize(canvas, _("Zoom 50%"), 0.5));
1097         add_item(new CanvasPopupSize(canvas, _("Zoom 75%"), 0.75));
1098         add_item(new CanvasPopupSize(canvas, _("Zoom 100%"), 1.0));
1099         add_item(new CanvasPopupSize(canvas, _("Zoom 150%"), 1.5));
1100         add_item(new CanvasPopupSize(canvas, _("Zoom 200%"), 2.0));
1101         add_item(new CanvasPopupSize(canvas, _("Zoom 300%"), 3.0));
1102         add_item(new CanvasPopupSize(canvas, _("Zoom 400%"), 4.0));
1103 }
1104
1105 void CanvasPopup::use_cwindow()
1106 {
1107         add_item(new CanvasPopupAuto(canvas));
1108         add_item(new CanvasPopupResetCamera(canvas));
1109         add_item(new CanvasPopupResetProjector(canvas));
1110         add_item(toggle_controls = new CanvasToggleControls(canvas));
1111 }
1112
1113 void CanvasPopup::use_rwindow()
1114 {
1115         add_item(new CanvasPopupResetTranslation(canvas));
1116 }
1117
1118 void CanvasPopup::use_vwindow()
1119 {
1120         add_item(new CanvasPopupRemoveSource(canvas));
1121 }
1122
1123
1124 CanvasPopupAuto::CanvasPopupAuto(Canvas *canvas)
1125  : BC_MenuItem(_("Zoom Auto"))
1126 {
1127         this->canvas = canvas;
1128 }
1129
1130 int CanvasPopupAuto::handle_event()
1131 {
1132         canvas->zoom_auto();
1133         return 1;
1134 }
1135
1136
1137 CanvasPopupSize::CanvasPopupSize(Canvas *canvas, char *text, float percentage)
1138  : BC_MenuItem(text)
1139 {
1140         this->canvas = canvas;
1141         this->percentage = percentage;
1142 }
1143 CanvasPopupSize::~CanvasPopupSize()
1144 {
1145 }
1146 int CanvasPopupSize::handle_event()
1147 {
1148         canvas->zoom_resize_window(percentage);
1149         return 1;
1150 }
1151
1152
1153
1154 CanvasPopupResetCamera::CanvasPopupResetCamera(Canvas *canvas)
1155  : BC_MenuItem(_("Reset camera"))
1156 {
1157         this->canvas = canvas;
1158 }
1159 int CanvasPopupResetCamera::handle_event()
1160 {
1161         canvas->reset_camera();
1162         return 1;
1163 }
1164
1165
1166
1167 CanvasPopupResetProjector::CanvasPopupResetProjector(Canvas *canvas)
1168  : BC_MenuItem(_("Reset projector"))
1169 {
1170         this->canvas = canvas;
1171 }
1172 int CanvasPopupResetProjector::handle_event()
1173 {
1174         canvas->reset_projector();
1175         return 1;
1176 }
1177
1178
1179
1180 CanvasPopupResetTranslation::CanvasPopupResetTranslation(Canvas *canvas)
1181  : BC_MenuItem(_("Reset translation"))
1182 {
1183         this->canvas = canvas;
1184 }
1185 int CanvasPopupResetTranslation::handle_event()
1186 {
1187         canvas->reset_translation();
1188         return 1;
1189 }
1190
1191
1192
1193 CanvasToggleControls::CanvasToggleControls(Canvas *canvas)
1194  : BC_MenuItem(calculate_text(canvas->get_cwindow_controls()))
1195 {
1196         this->canvas = canvas;
1197 }
1198 int CanvasToggleControls::handle_event()
1199 {
1200         canvas->toggle_controls();
1201         set_text(calculate_text(canvas->get_cwindow_controls()));
1202         return 1;
1203 }
1204
1205 char* CanvasToggleControls::calculate_text(int cwindow_controls)
1206 {
1207         if(!cwindow_controls)
1208                 return _("Show controls");
1209         else
1210                 return _("Hide controls");
1211 }
1212
1213
1214
1215
1216
1217
1218
1219 CanvasFullScreenItem::CanvasFullScreenItem(Canvas *canvas)
1220  : BC_MenuItem(_("Fullscreen"), "f", 'f')
1221 {
1222         this->canvas = canvas;
1223 }
1224 int CanvasFullScreenItem::handle_event()
1225 {
1226         canvas->subwindow->unlock_window();
1227         canvas->start_fullscreen();
1228         canvas->subwindow->lock_window("CanvasFullScreenItem::handle_event");
1229         return 1;
1230 }
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240 CanvasPopupRemoveSource::CanvasPopupRemoveSource(Canvas *canvas)
1241  : BC_MenuItem(_("Close source"))
1242 {
1243         this->canvas = canvas;
1244 }
1245 int CanvasPopupRemoveSource::handle_event()
1246 {
1247         canvas->close_source();
1248         return 1;
1249 }
1250
1251