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 "vframe.h"
  34
  35
  36
  37 Canvas::Canvas(MWindow *mwindow,
  38         BC_WindowBase *subwindow,
  39         int x,
  40         int y,
  41         int w,
  42         int h,
  43         int output_w,
  44         int output_h,
  45         int use_scrollbars)
  46 {
  47         reset();
  48
  49         if(w < 10) w = 10;
  50         if(h < 10) h = 10;
  51         this->mwindow = mwindow;
  52         this->subwindow = subwindow;
  53         this->x = x;
  54         this->y = y;
  55         this->w = w;
  56         this->h = h;
  57         this->output_w = output_w;
  58         this->output_h = output_h;
  59         this->use_scrollbars = use_scrollbars;
  60         this->canvas_auxwindow = 0;
  61         this->scr_w0 = subwindow->get_screen_w(0, 0);
  62         this->root_w = subwindow->get_root_w(0);
  63         this->root_h = subwindow->get_root_h(0);
  64         canvas_lock = new Mutex("Canvas::canvas_lock", 1);
  65 }
  66
  67 Canvas::~Canvas()
  68 {
  69         if(refresh_frame) delete refresh_frame;
  70         delete canvas_menu;
  71         if(yscroll) delete yscroll;
  72         if(xscroll) delete xscroll;
  73         delete canvas_subwindow;
  74         delete canvas_fullscreen;
  75         delete canvas_lock;
  76 }
  77
  78 void Canvas::reset()
  79 {
  80         use_scrollbars = 0;
  81         output_w = 0;
  82         output_h = 0;
  83         xscroll = 0;
  84         yscroll = 0;
  85         refresh_frame = 0;
  86         canvas_subwindow = 0;
  87         canvas_fullscreen = 0;
  88         is_processing = 0;
  89         cursor_inside = 0;
  90 }
  91
  92 void Canvas::lock_canvas(const char *location)
  93 {
  94         canvas_lock->lock(location);
  95 }
  96
  97 void Canvas::unlock_canvas()
  98 {
  99         canvas_lock->unlock();
 100 }
 101
 102 int Canvas::is_locked()
 103 {
 104         return canvas_lock->is_locked();
 105 }
 106
 107
 108 BC_WindowBase* Canvas::get_canvas()
 109 {
 110         if(get_fullscreen() && canvas_fullscreen)
 111                 return canvas_fullscreen;
 112         return canvas_auxwindow ? canvas_auxwindow : canvas_subwindow;
 113 }
 114
 115 void Canvas::use_auxwindow(BC_WindowBase *aux)
 116 {
 117         canvas_auxwindow = aux;
 118 }
 119
 120 void Canvas::use_cwindow()
 121 {
 122         canvas_menu->use_cwindow();
 123         fullscreen_menu->use_cwindow();
 124 }
 125
 126 void Canvas::use_rwindow()
 127 {
 128         canvas_menu->use_rwindow();
 129 }
 130
 131 void Canvas::use_vwindow()
 132 {
 133         canvas_menu->use_vwindow();
 134 }
 135
 136 // Get dimensions given a zoom
 137 void Canvas::calculate_sizes(float aspect_ratio,
 138         int output_w,
 139         int output_h,
 140         float zoom,
 141         int &w,
 142         int &h)
 143 {
 144 // Horizontal stretch
 145         if((float)output_w / output_h <= aspect_ratio)
 146         {
 147                 w = (int)((float)output_h * aspect_ratio * zoom);
 148                 h = (int)((float)output_h * zoom);
 149         }
 150         else
 151 // Vertical stretch
 152         {
 153                 h = (int)((float)output_w / aspect_ratio * zoom);
 154                 w = (int)((float)output_w * zoom);
 155         }
 156 }
 157
 158 float Canvas::get_x_offset(EDL *edl,
 159         int single_channel,
 160         float zoom_x,
 161         float conformed_w,
 162         float conformed_h)
 163 {
 164         if(use_scrollbars)
 165         {
 166                 if(xscroll)
 167                 {
 168 // If the projection is smaller than the canvas, this forces it in the center.
 169 //                      if(conformed_w < w_visible)
 170 //                              return -(float)(w_visible - conformed_w) / 2;
 171
 172                         return (float)get_xscroll();
 173                 }
 174                 else
 175                         return ((float)-get_canvas()->get_w() / zoom_x +
 176                                 edl->session->output_w) / 2;
 177         }
 178         else
 179         {
 180                 int out_w, out_h;
 181                 int canvas_w = get_canvas()->get_w();
 182                 int canvas_h = get_canvas()->get_h();
 183                 out_w = canvas_w;
 184                 out_h = canvas_h;
 185
 186                 if((float)out_w / out_h > conformed_w / conformed_h)
 187                 {
 188                         out_w = (int)(out_h * conformed_w / conformed_h + 0.5);
 189                 }
 190
 191                 if(out_w < canvas_w)
 192                         return -(canvas_w - out_w) / 2 / zoom_x;
 193         }
 194
 195         return 0;
 196 }
 197
 198 float Canvas::get_y_offset(EDL *edl,
 199         int single_channel,
 200         float zoom_y,
 201         float conformed_w,
 202         float conformed_h)
 203 {
 204         if(use_scrollbars)
 205         {
 206                 if(yscroll)
 207                 {
 208 // If the projection is smaller than the canvas, this forces it in the center.
 209 //                      if(conformed_h < h_visible)
 210 //                              return -(float)(h_visible - conformed_h) / 2;
 211
 212                         return (float)get_yscroll();
 213                 }
 214                 else
 215                         return ((float)-get_canvas()->get_h() / zoom_y +
 216                                 edl->session->output_h) / 2;
 217         }
 218         else
 219         {
 220                 int out_w, out_h;
 221                 int canvas_w = get_canvas()->get_w();
 222                 int canvas_h = get_canvas()->get_h();
 223                 out_w = canvas_w;
 224                 out_h = canvas_h;
 225
 226                 if((float)out_w / out_h <= conformed_w / conformed_h)
 227                 {
 228                         out_h = (int)((float)out_w / (conformed_w / conformed_h) + 0.5);
 229                 }
 230
 231 //printf("Canvas::get_y_offset 1 %d %d %f\n", out_h, canvas_h, -((float)canvas_h - out_h) / 2);
 232                 if(out_h < canvas_h)
 233                         return -((float)canvas_h - out_h) / 2 / zoom_y;
 234         }
 235
 236         return 0;
 237 }
 238
 239 // This may not be used anymore
 240 void Canvas::check_boundaries(EDL *edl, int &x, int &y, float &zoom)
 241 {
 242         if(x + w_visible > w_needed) x = w_needed - w_visible;
 243         if(y + h_visible > h_needed) y = h_needed - h_visible;
 244
 245         if(x < 0) x = 0;
 246         if(y < 0) y = 0;
 247 }
 248
 249 void Canvas::update_scrollbars(int flush)
 250 {
 251         if(use_scrollbars)
 252         {
 253                 if(xscroll) xscroll->update_length(w_needed, get_xscroll(), w_visible, flush);
 254                 if(yscroll) yscroll->update_length(h_needed, get_yscroll(), h_visible, flush);
 255         }
 256 }
 257
 258 void Canvas::get_zooms(EDL *edl,
 259         int single_channel,
 260         float &zoom_x,
 261         float &zoom_y,
 262         float &conformed_w,
 263         float &conformed_h)
 264 {
 265         edl->calculate_conformed_dimensions(single_channel,
 266                 conformed_w,
 267                 conformed_h);
 268
 269         if(use_scrollbars)
 270         {
 271                 zoom_x = get_zoom() *
 272                         conformed_w /
 273                         edl->session->output_w;
 274                 zoom_y = get_zoom() *
 275                         conformed_h /
 276                         edl->session->output_h;
 277         }
 278         else
 279         {
 280                 int out_w, out_h;
 281                 int canvas_w = get_canvas()->get_w();
 282                 int canvas_h = get_canvas()->get_h();
 283
 284                 out_w = canvas_w;
 285                 out_h = canvas_h;
 286
 287                 if((float)out_w / out_h > conformed_w / conformed_h)
 288                 {
 289                         out_w = (int)((float)out_h * conformed_w / conformed_h + 0.5);
 290                 }
 291                 else
 292                 {
 293                         out_h = (int)((float)out_w / (conformed_w / conformed_h) + 0.5);
 294                 }
 295
 296                 zoom_x = (float)out_w / edl->session->output_w;
 297                 zoom_y = (float)out_h / edl->session->output_h;
 298 //printf("get zooms 2 %d %d %f %f\n", canvas_w, canvas_h, conformed_w, conformed_h);
 299         }
 300 }
 301
 302 // Convert a coordinate on the canvas to a coordinate on the output
 303 void Canvas::canvas_to_output(EDL *edl, int single_channel, float &x, float &y)
 304 {
 305         float zoom_x, zoom_y, conformed_w, conformed_h;
 306         get_zooms(edl, single_channel, zoom_x, zoom_y, conformed_w, conformed_h);
 307
 308 //printf("Canvas::canvas_to_output y=%f zoom_y=%f y_offset=%f\n",
 309 //      y, zoom_y, get_y_offset(edl, single_channel, zoom_y, conformed_w, conformed_h));
 310
 311         x = (float)x / zoom_x + get_x_offset(edl, single_channel, zoom_x, conformed_w, conformed_h);
 312         y = (float)y / zoom_y + get_y_offset(edl, single_channel, zoom_y, conformed_w, conformed_h);
 313 }
 314
 315 void Canvas::output_to_canvas(EDL *edl, int single_channel, float &x, float &y)
 316 {
 317         float zoom_x, zoom_y, conformed_w, conformed_h;
 318         get_zooms(edl, single_channel, zoom_x, zoom_y, conformed_w, conformed_h);
 319
 320 //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));
 321
 322         x = (float)zoom_x * (x - get_x_offset(edl, single_channel, zoom_x, conformed_w, conformed_h));
 323         y = (float)zoom_y * (y - get_y_offset(edl, single_channel, zoom_y, conformed_w, conformed_h));
 324 }
 325
 326
 327
 328 void Canvas::get_transfers(EDL *edl,
 329         float &output_x1, float &output_y1, float &output_x2, float &output_y2,
 330         float &canvas_x1, float &canvas_y1, float &canvas_x2, float &canvas_y2,
 331         int canvas_w, int canvas_h)
 332 {
 333 // printf("Canvas::get_transfers %d %d\n", canvas_w,
 334 //              canvas_h);
 335 // automatic canvas size detection
 336         if(canvas_w < 0) canvas_w = get_canvas()->get_w();
 337         if(canvas_h < 0) canvas_h = get_canvas()->get_h();
 338
 339 // Canvas is zoomed to a portion of the output frame
 340         if(use_scrollbars)
 341         {
 342                 float in_x1, in_y1, in_x2, in_y2;
 343                 float out_x1, out_y1, out_x2, out_y2;
 344                 float zoom_x, zoom_y, conformed_w, conformed_h;
 345
 346                 get_zooms(edl, 0, zoom_x, zoom_y, conformed_w, conformed_h);
 347                 out_x1 = 0;
 348                 out_y1 = 0;
 349                 out_x2 = canvas_w;
 350                 out_y2 = canvas_h;
 351                 in_x1 = 0;
 352                 in_y1 = 0;
 353                 in_x2 = canvas_w;
 354                 in_y2 = canvas_h;
 355
 356                 canvas_to_output(edl, 0, in_x1, in_y1);
 357                 canvas_to_output(edl, 0, in_x2, in_y2);
 358
 359 //printf("Canvas::get_transfers 1 %.0f %.0f %.0f %.0f -> %.0f %.0f %.0f %.0f\n",
 360 //in_x1, in_y1, in_x2, in_y2, out_x1, out_y1, out_x2, out_y2);
 361
 362                 if(in_x1 < 0)
 363                 {
 364                         out_x1 += -in_x1 * zoom_x;
 365                         in_x1 = 0;
 366                 }
 367
 368                 if(in_y1 < 0)
 369                 {
 370                         out_y1 += -in_y1 * zoom_y;
 371                         in_y1 = 0;
 372                 }
 373
 374                 int output_w = get_output_w(edl);
 375                 int output_h = get_output_h(edl);
 376
 377                 if(in_x2 > output_w)
 378                 {
 379                         out_x2 -= (in_x2 - output_w) * zoom_x;
 380                         in_x2 = output_w;
 381                 }
 382
 383                 if(in_y2 > output_h)
 384                 {
 385                         out_y2 -= (in_y2 - output_h) * zoom_y;
 386                         in_y2 = output_h;
 387                 }
 388 // printf("Canvas::get_transfers 2 %.0f %.0f %.0f %.0f -> %.0f %.0f %.0f %.0f\n",
 389 //                      in_x1, in_y1, in_x2, in_y2, out_x1, out_y1, out_x2, out_y2);
 390
 391                 output_x1 = in_x1;
 392                 output_y1 = in_y1;
 393                 output_x2 = in_x2;
 394                 output_y2 = in_y2;
 395                 canvas_x1 = out_x1;
 396                 canvas_y1 = out_y1;
 397                 canvas_x2 = out_x2;
 398                 canvas_y2 = out_y2;
 399
 400 // Center on canvas
 401 //              if(!scrollbars_exist())
 402 //              {
 403 //                      out_x = canvas_w / 2 - out_w / 2;
 404 //                      out_y = canvas_h / 2 - out_h / 2;
 405 //              }
 406
 407         }
 408         else
 409 // The output frame is normalized to the canvas
 410         {
 411 // Default canvas coords fill the entire canvas
 412                 canvas_x1 = 0;
 413                 canvas_y1 = 0;
 414                 canvas_x2 = canvas_w;
 415                 canvas_y2 = canvas_h;
 416
 417                 if(edl)
 418                 {
 419 // Use EDL aspect ratio to shrink one of the canvas dimensions
 420                         float out_w = canvas_x2 - canvas_x1;
 421                         float out_h = canvas_y2 - canvas_y1;
 422                         if(out_w / out_h > edl->get_aspect_ratio())
 423                         {
 424                                 out_w = (int)(out_h * edl->get_aspect_ratio() + 0.5);
 425                                 canvas_x1 = canvas_w / 2 - out_w / 2;
 426                         }
 427                         else
 428                         {
 429                                 out_h = (int)(out_w / edl->get_aspect_ratio() + 0.5);
 430                                 canvas_y1 = canvas_h / 2 - out_h / 2;
 431                         }
 432                         canvas_x2 = canvas_x1 + out_w;
 433                         canvas_y2 = canvas_y1 + out_h;
 434
 435 // Get output frame coords from EDL
 436                         output_x1 = 0;
 437                         output_y1 = 0;
 438                         output_x2 = get_output_w(edl);
 439                         output_y2 = get_output_h(edl);
 440                 }
 441                 else
 442 // No EDL to get aspect ratio or output frame coords from
 443                 {
 444                         output_x1 = 0;
 445                         output_y1 = 0;
 446                         output_x2 = this->output_w;
 447                         output_y2 = this->output_h;
 448                 }
 449         }
 450
 451 // Clamp to minimum value
 452         output_x1 = MAX(0, output_x1);
 453         output_y1 = MAX(0, output_y1);
 454         output_x2 = MAX(output_x1, output_x2);
 455         output_y2 = MAX(output_y1, output_y2);
 456         canvas_x1 = MAX(0, canvas_x1);
 457         canvas_y1 = MAX(0, canvas_y1);
 458         canvas_x2 = MAX(canvas_x1, canvas_x2);
 459         canvas_y2 = MAX(canvas_y1, canvas_y2);
 460 // printf("Canvas::get_transfers 2 %f,%f %f,%f -> %f,%f %f,%f\n",
 461 // output_x1,
 462 // output_y1,
 463 // output_x2,
 464 // output_y2,
 465 // canvas_x1,
 466 // canvas_y1,
 467 // canvas_x2,
 468 // canvas_y2);
 469 }
 470
 471 int Canvas::scrollbars_exist()
 472 {
 473         return(use_scrollbars && (xscroll || yscroll));
 474 }
 475
 476 int Canvas::get_output_w(EDL *edl)
 477 {
 478         return !edl ? 0 : edl->session->output_w;
 479 }
 480
 481 int Canvas::get_output_h(EDL *edl)
 482 {
 483         return !edl ? 0 : edl->session->output_h;
 484 }
 485
 486
 487
 488 void Canvas::get_scrollbars(EDL *edl,
 489         int &canvas_x,
 490         int &canvas_y,
 491         int &canvas_w,
 492         int &canvas_h)
 493 {
 494         int need_xscroll = 0;
 495         int need_yscroll = 0;
 496 //      int done = 0;
 497         float zoom_x, zoom_y, conformed_w, conformed_h;
 498
 499         if(edl)
 500         {
 501                 w_needed = edl->session->output_w;
 502                 h_needed = edl->session->output_h;
 503                 w_visible = w_needed;
 504                 h_visible = h_needed;
 505         }
 506 //printf("Canvas::get_scrollbars 1 %d %d\n", get_xscroll(), get_yscroll());
 507
 508         if( use_scrollbars ) {
 509                 w_needed = edl->session->output_w;
 510                 h_needed = edl->session->output_h;
 511                 get_zooms(edl, 0, zoom_x, zoom_y, conformed_w, conformed_h);
 512 //printf("Canvas::get_scrollbars 2 %d %d\n", get_xscroll(), get_yscroll());
 513
 514                 w_visible = (int)(canvas_w / zoom_x);
 515                 h_visible = (int)(canvas_h / zoom_y);
 516                 if( w_needed > w_visible ) {
 517                         need_xscroll = 1;
 518                         canvas_h -= BC_ScrollBar::get_span(SCROLL_HORIZ);
 519                 }
 520
 521                 if( h_needed > h_visible ) {
 522                         need_yscroll = 1;
 523                         canvas_w -= BC_ScrollBar::get_span(SCROLL_VERT);
 524                 }
 525 //printf("Canvas::get_scrollbars %d %d %d %d %d %d\n", canvas_w, canvas_h, w_needed, h_needed, w_visible, h_visible);
 526 //printf("Canvas::get_scrollbars 3 %d %d\n", get_xscroll(), get_yscroll());
 527
 528                 w_visible = (int)(canvas_w / zoom_x);
 529                 h_visible = (int)(canvas_h / zoom_y);
 530         }
 531
 532         if( need_xscroll ) {
 533                 if( !xscroll ) {
 534                         xscroll = new CanvasXScroll(edl, this, canvas_x, canvas_y + canvas_h,
 535                                         w_needed, get_xscroll(), w_visible, canvas_w);
 536                         subwindow->add_subwindow(xscroll);
 537                         xscroll->show_window(0);
 538                 }
 539                 else
 540                         xscroll->reposition_window(canvas_x, canvas_y + canvas_h, canvas_w);
 541
 542                 if( xscroll->get_length() != w_needed ||
 543                     xscroll->get_handlelength() != w_visible )
 544                         xscroll->update_length(w_needed, get_xscroll(), w_visible, 0);
 545         }
 546         else if( xscroll ) {
 547                 delete xscroll;  xscroll = 0;
 548         }
 549 //printf("Canvas::get_scrollbars 4 %d %d\n", get_xscroll(), get_yscroll());
 550
 551         if( need_yscroll ) {
 552                 if( !yscroll ) {
 553                         yscroll = new CanvasYScroll(edl, this, canvas_x + canvas_w, canvas_y,
 554                                         h_needed, get_yscroll(), h_visible, canvas_h);
 555                         subwindow->add_subwindow(yscroll);
 556                         yscroll->show_window(0);
 557                 }
 558                 else
 559                         yscroll->reposition_window(canvas_x + canvas_w, canvas_y, canvas_h);
 560
 561                 if( yscroll->get_length() != edl->session->output_h ||
 562                     yscroll->get_handlelength() != h_visible )
 563                         yscroll->update_length(h_needed, get_yscroll(), h_visible, 0);
 564         }
 565         else if( yscroll ) {
 566                 delete yscroll;  yscroll = 0;
 567         }
 568 //printf("Canvas::get_scrollbars 5 %d %d\n", get_xscroll(), get_yscroll());
 569 }
 570
 571 void Canvas::reposition_window(EDL *edl, int x, int y, int w, int h)
 572 {
 573         this->x = view_x = x;  this->y = view_y = y;
 574         this->w = view_w = w;  this->h = view_h = h;
 575 //printf("Canvas::reposition_window 1\n");
 576         get_scrollbars(edl, view_x, view_y, view_w, view_h);
 577 //printf("Canvas::reposition_window %d %d %d %d\n", view_x, view_y, view_w, view_h);
 578         if(canvas_subwindow)
 579         {
 580                 canvas_subwindow->reposition_window(view_x, view_y, view_w, view_h);
 581
 582 // Need to clear out the garbage in the back
 583                 if(canvas_subwindow->get_video_on())
 584                 {
 585                         canvas_subwindow->set_color(BLACK);
 586                         canvas_subwindow->draw_box(0, 0,
 587                                 get_canvas()->get_w(), get_canvas()->get_h());
 588                         canvas_subwindow->flash(0);
 589                 }
 590         }
 591
 592
 593         draw_refresh(0);
 594 }
 595
 596 void Canvas::set_cursor(int cursor)
 597 {
 598         get_canvas()->set_cursor(cursor, 0, 1);
 599 }
 600
 601 int Canvas::get_cursor_x()
 602 {
 603         return get_canvas()->get_cursor_x();
 604 }
 605
 606 int Canvas::get_cursor_y()
 607 {
 608         return get_canvas()->get_cursor_y();
 609 }
 610
 611 int Canvas::get_buttonpress()
 612 {
 613         return get_canvas()->get_buttonpress();
 614 }
 615
 616
 617 void Canvas::create_objects(EDL *edl)
 618 {
 619         view_x = x;
 620         view_y = y;
 621         view_w = w;
 622         view_h = h;
 623         get_scrollbars(edl, view_x, view_y, view_w, view_h);
 624
 625         subwindow->unlock_window();
 626         create_canvas();
 627         subwindow->lock_window("Canvas::create_objects");
 628
 629         subwindow->add_subwindow(canvas_menu = new CanvasPopup(this));
 630         canvas_menu->create_objects();
 631
 632         subwindow->add_subwindow(fullscreen_menu = new CanvasFullScreenPopup(this));
 633         fullscreen_menu->create_objects();
 634
 635 }
 636
 637 int Canvas::button_press_event()
 638 {
 639         int result = 0;
 640
 641         if(get_canvas()->get_buttonpress() == 3)
 642         {
 643                 if(get_fullscreen())
 644                         fullscreen_menu->activate_menu();
 645                 else
 646                         canvas_menu->activate_menu();
 647                 result = 1;
 648         }
 649
 650         return result;
 651 }
 652
 653 void Canvas::start_single()
 654 {
 655         is_processing = 1;
 656         status_event();
 657 }
 658
 659 void Canvas::stop_single()
 660 {
 661         is_processing = 0;
 662         status_event();
 663 }
 664
 665 void Canvas::start_video()
 666 {
 667         if(get_canvas())
 668         {
 669                 get_canvas()->start_video();
 670                 status_event();
 671         }
 672 }
 673
 674 void Canvas::stop_video()
 675 {
 676         if(get_canvas())
 677         {
 678                 get_canvas()->stop_video();
 679                 status_event();
 680         }
 681 }
 682
 683
 684 void Canvas::start_fullscreen()
 685 {
 686         set_fullscreen(1);
 687         create_canvas();
 688 }
 689
 690 void Canvas::stop_fullscreen()
 691 {
 692         set_fullscreen(0);
 693         create_canvas();
 694 }
 695
 696 void Canvas::create_canvas()
 697 {
 698         int video_on = 0;
 699         lock_canvas("Canvas::create_canvas");
 700
 701
 702         if(!get_fullscreen())
 703 // Enter windowed
 704         {
 705                 if(canvas_fullscreen)
 706                 {
 707                         video_on = canvas_fullscreen->get_video_on();
 708                         canvas_fullscreen->stop_video();
 709                         canvas_fullscreen->lock_window("Canvas::create_canvas 2");
 710                         canvas_fullscreen->hide_window();
 711                         canvas_fullscreen->unlock_window();
 712                 }
 713
 714                 if(!canvas_auxwindow && !canvas_subwindow)
 715                 {
 716                         subwindow->add_subwindow(canvas_subwindow = new CanvasOutput(this,
 717                                 view_x,
 718                                 view_y,
 719                                 view_w,
 720                                 view_h));
 721                 }
 722         }
 723         else
 724 // Enter fullscreen
 725         {
 726                 BC_WindowBase *wdw = canvas_auxwindow ?
 727                         canvas_auxwindow : canvas_subwindow;
 728                 if(wdw)
 729                 {
 730                         video_on = wdw->get_video_on();
 731                         wdw->stop_video();
 732                 }
 733
 734                 int x = subwindow->get_screen_x(0, -1);
 735                 int y = subwindow->get_screen_y(0, -1);
 736                 int w = root_w;
 737                 int h = root_h;
 738                 if( mwindow->screens == 1 && root_w > scr_w0 ) {
 739                         // Xinerama
 740                         if( subwindow->get_x() >= scr_w0 ) {
 741                                 // assumes right side is the big one
 742                                 w = root_w - scr_w0;
 743                                 h = root_h;
 744                         }
 745                         else {
 746                                 // use same aspect ratio to compute left height
 747                                 w = scr_w0;
 748                                 h = (w*root_h) / (root_w-scr_w0);
 749                         }
 750                 }
 751
 752                 if( canvas_fullscreen )
 753                 {
 754                         if( x != canvas_fullscreen->get_x() ||
 755                             y != canvas_fullscreen->get_y() ||
 756                             w != canvas_fullscreen->get_w() ||
 757                             h != canvas_fullscreen->get_h() ) {
 758                                 delete canvas_fullscreen;
 759                                 canvas_fullscreen = 0;
 760                         }
 761                 }
 762                 if(!canvas_fullscreen)
 763                 {
 764                         canvas_fullscreen = new CanvasFullScreen(this, w, h);
 765                 }
 766                 else
 767                 {
 768                         canvas_fullscreen->reposition_window(x, y);
 769                         canvas_fullscreen->show_window();
 770                 }
 771         }
 772
 773
 774         if(!video_on)
 775         {
 776                 get_canvas()->lock_window("Canvas::create_canvas 1");
 777                 draw_refresh();
 778                 get_canvas()->unlock_window();
 779         }
 780
 781         if(video_on) get_canvas()->start_video();
 782
 783         unlock_canvas();
 784 }
 785
 786
 787
 788 int Canvas::cursor_leave_event_base(BC_WindowBase *caller)
 789 {
 790         int result = 0;
 791         if(cursor_inside) result = cursor_leave_event();
 792         cursor_inside = 0;
 793         return result;
 794 }
 795
 796 int Canvas::cursor_enter_event_base(BC_WindowBase *caller)
 797 {
 798         int result = 0;
 799         if(caller->is_event_win() && caller->cursor_inside())
 800         {
 801                 cursor_inside = 1;
 802                 result = cursor_enter_event();
 803         }
 804         return result;
 805 }
 806
 807 int Canvas::button_press_event_base(BC_WindowBase *caller)
 808 {
 809         if(caller->is_event_win() && caller->cursor_inside())
 810         {
 811                 return button_press_event();
 812         }
 813         return 0;
 814 }
 815
 816 int Canvas::keypress_event(BC_WindowBase *caller)
 817 {
 818         int caller_is_canvas = (caller == get_canvas());
 819         int key = caller->get_keypress();
 820         switch( key ) {
 821         case 'f':
 822                 caller->unlock_window();
 823                 if(get_fullscreen())
 824                         stop_fullscreen();
 825                 else
 826                         start_fullscreen();
 827                 if(!caller_is_canvas) caller->lock_window("Canvas::keypress_event 1");
 828                 break;
 829         case ESC:
 830                 caller->unlock_window();
 831                 if(get_fullscreen())
 832                         stop_fullscreen();
 833                 if(!caller_is_canvas) caller->lock_window("Canvas::keypress_event 2");
 834                 break;
 835         default:
 836                 return 0;
 837         }
 838         return 1;
 839 }
 840
 841
 842
 843
 844
 845
 846
 847
 848
 849
 850
 851
 852
 853
 854
 855
 856
 857 CanvasOutput::CanvasOutput(Canvas *canvas,
 858     int x,
 859     int y,
 860     int w,
 861     int h)
 862  : BC_SubWindow(x, y, w, h, BLACK)
 863 {
 864         this->canvas = canvas;
 865 }
 866
 867 CanvasOutput::~CanvasOutput()
 868 {
 869 }
 870
 871 int CanvasOutput::cursor_leave_event()
 872 {
 873         return canvas->cursor_leave_event_base(this);
 874 }
 875
 876 int CanvasOutput::cursor_enter_event()
 877 {
 878         return canvas->cursor_enter_event_base(this);
 879 }
 880
 881 int CanvasOutput::button_press_event()
 882 {
 883         return canvas->button_press_event_base(this);
 884 }
 885
 886 int CanvasOutput::button_release_event()
 887 {
 888         return canvas->button_release_event();
 889 }
 890
 891 int CanvasOutput::cursor_motion_event()
 892 {
 893         return canvas->cursor_motion_event();
 894 }
 895
 896 int CanvasOutput::keypress_event()
 897 {
 898         return canvas->keypress_event(this);
 899 }
 900
 901
 902
 903
 904
 905
 906
 907
 908
 909
 910
 911
 912
 913 CanvasFullScreen::CanvasFullScreen(Canvas *canvas,
 914     int w,
 915     int h)
 916  : BC_FullScreen(canvas->subwindow,
 917         w,
 918         h,
 919         BLACK,
 920         0,
 921         0,
 922         0)
 923 {
 924         this->canvas = canvas;
 925 }
 926
 927 CanvasFullScreen::~CanvasFullScreen()
 928 {
 929 }
 930
 931
 932
 933
 934
 935
 936
 937
 938
 939
 940
 941
 942
 943 CanvasXScroll::CanvasXScroll(EDL *edl,
 944         Canvas *canvas,
 945     int x,
 946     int y,
 947         int length,
 948         int position,
 949         int handle_length,
 950     int pixels)
 951  : BC_ScrollBar(x,
 952                 y,
 953                 SCROLL_HORIZ,
 954                 pixels,
 955                 length,
 956                 position,
 957                 handle_length)
 958 {
 959         this->canvas = canvas;
 960 }
 961
 962 CanvasXScroll::~CanvasXScroll()
 963 {
 964 }
 965
 966 int CanvasXScroll::handle_event()
 967 {
 968 //printf("CanvasXScroll::handle_event %d %d %d\n", get_length(), get_value(), get_handlelength());
 969         canvas->update_zoom(get_value(), canvas->get_yscroll(), canvas->get_zoom());
 970         canvas->draw_refresh();
 971         return 1;
 972 }
 973
 974
 975
 976
 977
 978
 979 CanvasYScroll::CanvasYScroll(EDL *edl,
 980         Canvas *canvas,
 981     int x,
 982     int y,
 983         int length,
 984         int position,
 985         int handle_length,
 986     int pixels)
 987  : BC_ScrollBar(x,
 988                 y,
 989                 SCROLL_VERT,
 990                 pixels,
 991                 length,
 992                 position,
 993                 handle_length)
 994 {
 995         this->canvas = canvas;
 996 }
 997
 998 CanvasYScroll::~CanvasYScroll()
 999 {
1000 }
1001
1002 int CanvasYScroll::handle_event()
1003 {
1004 //printf("CanvasYScroll::handle_event %d %d\n", get_value(), get_length());
1005         canvas->update_zoom(canvas->get_xscroll(), get_value(), canvas->get_zoom());
1006         canvas->draw_refresh();
1007         return 1;
1008 }
1009
1010
1011
1012
1013
1014
1015 CanvasFullScreenPopup::CanvasFullScreenPopup(Canvas *canvas)
1016  : BC_PopupMenu(0, 0, 0, "", 0)
1017 {
1018         this->canvas = canvas;
1019 }
1020
1021
1022 void CanvasFullScreenPopup::create_objects()
1023 {
1024         add_item(new CanvasSubWindowItem(canvas));
1025 }
1026
1027 void CanvasFullScreenPopup::use_cwindow()
1028 {
1029         add_item(new CanvasPopupAuto(canvas));
1030 }
1031
1032 CanvasSubWindowItem::CanvasSubWindowItem(Canvas *canvas)
1033  : BC_MenuItem(_("Windowed"), "f", 'f')
1034 {
1035         this->canvas = canvas;
1036 }
1037
1038 int CanvasSubWindowItem::handle_event()
1039 {
1040 // It isn't a problem to delete the canvas from in here because the event
1041 // dispatcher is the canvas subwindow.
1042         canvas->subwindow->unlock_window();
1043         canvas->stop_fullscreen();
1044         canvas->subwindow->lock_window("CanvasSubWindowItem::handle_event");
1045         return 1;
1046 }
1047
1048
1049
1050
1051
1052
1053
1054
1055 CanvasPopup::CanvasPopup(Canvas *canvas)
1056  : BC_PopupMenu(0, 0, 0, "", 0)
1057 {
1058         this->canvas = canvas;
1059 }
1060
1061 CanvasPopup::~CanvasPopup()
1062 {
1063 }
1064
1065 void CanvasPopup::create_objects()
1066 {
1067         add_item(new BC_MenuItem("-"));
1068         add_item(new CanvasFullScreenItem(canvas));
1069         add_item(new CanvasPopupSize(canvas, _("Zoom 25%"), 0.25));
1070         add_item(new CanvasPopupSize(canvas, _("Zoom 33%"), 0.33));
1071         add_item(new CanvasPopupSize(canvas, _("Zoom 50%"), 0.5));
1072         add_item(new CanvasPopupSize(canvas, _("Zoom 75%"), 0.75));
1073         add_item(new CanvasPopupSize(canvas, _("Zoom 100%"), 1.0));
1074         add_item(new CanvasPopupSize(canvas, _("Zoom 150%"), 1.5));
1075         add_item(new CanvasPopupSize(canvas, _("Zoom 200%"), 2.0));
1076         add_item(new CanvasPopupSize(canvas, _("Zoom 300%"), 3.0));
1077         add_item(new CanvasPopupSize(canvas, _("Zoom 400%"), 4.0));
1078 }
1079
1080 void CanvasPopup::use_cwindow()
1081 {
1082         add_item(new CanvasPopupAuto(canvas));
1083         add_item(new CanvasPopupResetCamera(canvas));
1084         add_item(new CanvasPopupResetProjector(canvas));
1085         add_item(toggle_controls = new CanvasToggleControls(canvas));
1086 }
1087
1088 void CanvasPopup::use_rwindow()
1089 {
1090         add_item(new CanvasPopupResetTranslation(canvas));
1091 }
1092
1093 void CanvasPopup::use_vwindow()
1094 {
1095         add_item(new CanvasPopupRemoveSource(canvas));
1096 }
1097
1098
1099 CanvasPopupAuto::CanvasPopupAuto(Canvas *canvas)
1100  : BC_MenuItem(_("Zoom Auto"))
1101 {
1102         this->canvas = canvas;
1103 }
1104
1105 int CanvasPopupAuto::handle_event()
1106 {
1107         canvas->zoom_auto();
1108         return 1;
1109 }
1110
1111
1112 CanvasPopupSize::CanvasPopupSize(Canvas *canvas, char *text, float percentage)
1113  : BC_MenuItem(text)
1114 {
1115         this->canvas = canvas;
1116         this->percentage = percentage;
1117 }
1118 CanvasPopupSize::~CanvasPopupSize()
1119 {
1120 }
1121 int CanvasPopupSize::handle_event()
1122 {
1123         canvas->zoom_resize_window(percentage);
1124         return 1;
1125 }
1126
1127
1128
1129 CanvasPopupResetCamera::CanvasPopupResetCamera(Canvas *canvas)
1130  : BC_MenuItem(_("Reset camera"))
1131 {
1132         this->canvas = canvas;
1133 }
1134 int CanvasPopupResetCamera::handle_event()
1135 {
1136         canvas->reset_camera();
1137         return 1;
1138 }
1139
1140
1141
1142 CanvasPopupResetProjector::CanvasPopupResetProjector(Canvas *canvas)
1143  : BC_MenuItem(_("Reset projector"))
1144 {
1145         this->canvas = canvas;
1146 }
1147 int CanvasPopupResetProjector::handle_event()
1148 {
1149         canvas->reset_projector();
1150         return 1;
1151 }
1152
1153
1154
1155 CanvasPopupResetTranslation::CanvasPopupResetTranslation(Canvas *canvas)
1156  : BC_MenuItem(_("Reset translation"))
1157 {
1158         this->canvas = canvas;
1159 }
1160 int CanvasPopupResetTranslation::handle_event()
1161 {
1162         canvas->reset_translation();
1163         return 1;
1164 }
1165
1166
1167
1168 CanvasToggleControls::CanvasToggleControls(Canvas *canvas)
1169  : BC_MenuItem(calculate_text(canvas->get_cwindow_controls()))
1170 {
1171         this->canvas = canvas;
1172 }
1173 int CanvasToggleControls::handle_event()
1174 {
1175         canvas->toggle_controls();
1176         set_text(calculate_text(canvas->get_cwindow_controls()));
1177         return 1;
1178 }
1179
1180 char* CanvasToggleControls::calculate_text(int cwindow_controls)
1181 {
1182         if(!cwindow_controls)
1183                 return _("Show controls");
1184         else
1185                 return _("Hide controls");
1186 }
1187
1188
1189
1190
1191
1192
1193
1194 CanvasFullScreenItem::CanvasFullScreenItem(Canvas *canvas)
1195  : BC_MenuItem(_("Fullscreen"), "f", 'f')
1196 {
1197         this->canvas = canvas;
1198 }
1199 int CanvasFullScreenItem::handle_event()
1200 {
1201         canvas->subwindow->unlock_window();
1202         canvas->start_fullscreen();
1203         canvas->subwindow->lock_window("CanvasFullScreenItem::handle_event");
1204         return 1;
1205 }
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215 CanvasPopupRemoveSource::CanvasPopupRemoveSource(Canvas *canvas)
1216  : BC_MenuItem(_("Close source"))
1217 {
1218         this->canvas = canvas;
1219 }
1220 int CanvasPopupRemoveSource::handle_event()
1221 {
1222         canvas->close_source();
1223         return 1;
1224 }
1225
1226