cinelerra-5.1/cinelerra/playtransport.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 "edl.h"
  23 #include "keys.h"
  24 #include "language.h"
  25 #include "localsession.h"
  26 #include "mwindow.h"
  27 #include "mwindowgui.h"
  28 #include "playbackengine.h"
  29 #include "playtransport.h"
  30 #include "preferences.h"
  31 #include "theme.h"
  32 #include "transportque.h"
  33 #include "vframe.h"
  34
  35
  36
  37 PlayTransport::PlayTransport(MWindow *mwindow,
  38         BC_WindowBase *subwindow,
  39         int x,
  40         int y)
  41 {
  42         this->subwindow = subwindow;
  43         this->mwindow = mwindow;
  44         this->x = x;
  45         this->y = y;
  46         this->engine = 0;
  47         this->status = 0;
  48         this->using_inout = 0;
  49 }
  50
  51
  52 PlayTransport::~PlayTransport()
  53 {
  54         delete forward_play;
  55         delete frame_forward_play;
  56         delete reverse_play;
  57         delete frame_reverse_play;
  58         delete fast_reverse;
  59         delete fast_play;
  60         delete rewind_button;
  61         delete stop_button;
  62         delete end_button;
  63 }
  64
  65 void PlayTransport::set_engine(PlaybackEngine *engine)
  66 {
  67         this->engine = engine;
  68 }
  69
  70 int PlayTransport::get_transport_width(MWindow *mwindow)
  71 {
  72         return mwindow->theme->get_image_set("stop")[0]->get_w() * 7 +
  73                 mwindow->theme->get_image_set("rewind")[0]->get_w() * 2;
  74 }
  75
  76 void PlayTransport::create_objects()
  77 {
  78         int x = this->x, y = this->y;
  79         subwindow->add_subwindow(rewind_button = new RewindButton(mwindow, this, x, y));
  80         x += rewind_button->get_w();
  81         subwindow->add_subwindow(fast_reverse = new FastReverseButton(mwindow, this, x, y));
  82         x += fast_reverse->get_w();
  83         subwindow->add_subwindow(reverse_play = new ReverseButton(mwindow, this, x, y));
  84         x += reverse_play->get_w();
  85         subwindow->add_subwindow(frame_reverse_play = new FrameReverseButton(mwindow, this, x, y));
  86         x += frame_reverse_play->get_w();
  87         subwindow->add_subwindow(stop_button = new StopButton(mwindow, this, x, y));
  88         x += stop_button->get_w();
  89         subwindow->add_subwindow(frame_forward_play = new FramePlayButton(mwindow, this, x, y));
  90         x += frame_forward_play->get_w();
  91         subwindow->add_subwindow(forward_play = new PlayButton(mwindow, this, x, y));
  92         x += forward_play->get_w();
  93         subwindow->add_subwindow(fast_play = new FastPlayButton(mwindow, this, x, y));
  94         x += fast_play->get_w();
  95         subwindow->add_subwindow(end_button = new EndButton(mwindow, this, x, y));
  96         x += end_button->get_w();
  97
  98         reverse = 0;
  99         speed = 0;
 100
 101 }
 102
 103 void PlayTransport::reposition_buttons(int x, int y)
 104 {
 105         this->x = x;
 106         this->y = y;
 107         rewind_button->reposition_window(x, y);
 108         x += rewind_button->get_w();
 109         fast_reverse->reposition_window(x, y);
 110         x += fast_reverse->get_w();
 111         reverse_play->reposition_window(x, y);
 112         x += reverse_play->get_w();
 113         frame_reverse_play->reposition_window(x, y);
 114         x += frame_reverse_play->get_w();
 115         stop_button->reposition_window(x, y);
 116         x += stop_button->get_w();
 117         frame_forward_play->reposition_window(x, y);
 118         x += frame_forward_play->get_w();
 119         forward_play->reposition_window(x, y);
 120         x += forward_play->get_w();
 121         fast_play->reposition_window(x, y);
 122         x += fast_play->get_w();
 123         end_button->reposition_window(x, y);
 124         x += end_button->get_w();
 125 }
 126
 127 int PlayTransport::get_w()
 128 {
 129         return end_button->get_x() + end_button->get_w() - rewind_button->get_x();
 130 }
 131
 132 int PlayTransport::flip_vertical(int vertical, int &x, int &y)
 133 {
 134         if(vertical)
 135         {
 136                 rewind_button->reposition_window(x, y);
 137                 y += rewind_button->get_h();
 138                 fast_reverse->reposition_window(x, y);
 139                 y += fast_reverse->get_h();
 140                 reverse_play->reposition_window(x, y);
 141                 y += reverse_play->get_h();
 142                 frame_reverse_play->reposition_window(x, y);
 143                 y += frame_reverse_play->get_h();
 144                 stop_button->reposition_window(x, y);
 145                 y += stop_button->get_h();
 146                 frame_forward_play->reposition_window(x, y);
 147                 y += frame_forward_play->get_h();
 148                 forward_play->reposition_window(x, y);
 149                 y += forward_play->get_h();
 150                 fast_play->reposition_window(x, y);
 151                 y += fast_play->get_h();
 152                 end_button->reposition_window(x, y);
 153                 y += end_button->get_h();
 154         }
 155         else
 156         {
 157                 rewind_button->reposition_window(x, y - 2);
 158                 x += rewind_button->get_w();
 159                 fast_reverse->reposition_window(x, y - 2);
 160                 x += fast_reverse->get_w();
 161                 reverse_play->reposition_window(x, y - 2);
 162                 x += reverse_play->get_w();
 163                 frame_reverse_play->reposition_window(x, y - 2);
 164                 x += frame_reverse_play->get_w();
 165                 stop_button->reposition_window(x, y - 2);
 166                 x += stop_button->get_w();
 167                 frame_forward_play->reposition_window(x, y - 2);
 168                 x += frame_forward_play->get_w();
 169                 forward_play->reposition_window(x, y - 2);
 170                 x += forward_play->get_w();
 171                 fast_play->reposition_window(x, y - 2);
 172                 x += fast_play->get_w();
 173                 end_button->reposition_window(x, y - 2);
 174                 x += end_button->get_w();
 175         }
 176
 177         return 0;
 178 }
 179
 180 int PlayTransport::keypress_event()
 181 {
 182         int result = 1;
 183         int key = subwindow->get_keypress();
 184 // unqualified keys, still holding lock
 185         switch( key ) {
 186         case HOME:
 187                 goto_start();
 188                 return result;
 189         case END:
 190                 goto_end();
 191                 return result;
 192         }
 193
 194         int toggle_audio = subwindow->shift_down() ? 1 : 0;
 195         int use_inout = subwindow->ctrl_down() ? 1 : 0;
 196         int command = -1, prev_command = engine->command->command;
 197         using_inout = use_inout;
 198         subwindow->unlock_window();
 199
 200         switch( key ) {
 201         case 'k':
 202         case KPINS:     command = STOP;                 break;
 203         case KPPLUS:    command = FAST_REWIND;          break;
 204         case KP6:       command = NORMAL_REWIND;        break;
 205         case KP5:       command = SLOW_REWIND;          break;
 206         case KP4:       command = SINGLE_FRAME_REWIND;  break;
 207         case KP1:       command = SINGLE_FRAME_FWD;     break;
 208         case KP2:       command = SLOW_FWD;             break;
 209         case KP3:       command = NORMAL_FWD;           break;
 210         case KPENTER:   command = FAST_FWD;             break;
 211         case ' ':
 212                 switch( prev_command ) {
 213                 case COMMAND_NONE:
 214                 case CURRENT_FRAME:
 215                 case PAUSE:
 216                 case STOP:
 217                         command = NORMAL_FWD;
 218                         break;
 219                 default:
 220                         command = STOP;
 221                         break;
 222                 }
 223                 break;
 224         default:
 225                 result = 0;
 226                 break;
 227         }
 228         if( command >= 0 )
 229                 handle_transport(command, 0, use_inout, 1, toggle_audio);
 230
 231         subwindow->lock_window("PlayTransport::keypress_event 5");
 232         return result;
 233 }
 234
 235
 236 void PlayTransport::goto_start()
 237 {
 238         handle_transport(REWIND, 1, 0);
 239 }
 240
 241 void PlayTransport::goto_end()
 242 {
 243         handle_transport(GOTO_END, 1, 0);
 244 }
 245
 246
 247
 248 void PlayTransport::handle_transport(int command,
 249         int wait_tracking, int use_inout, int update_refresh, int toggle_audio)
 250 {
 251         if( !get_edl() ) return;
 252
 253 // Stop requires transferring the output buffer to a refresh buffer.
 254         int do_stop = 0;
 255         int resume = 0;
 256 //printf("PlayTransport::handle_transport 1 %d\n", command);
 257         int prev_command = engine->command->command;
 258         int prev_direction = engine->command->get_direction();
 259         int prev_single_frame = engine->command->single_frame();
 260         int prev_audio = engine->command->audio_toggle ?
 261                  !prev_single_frame : prev_single_frame;
 262         int cur_single_frame = TransportCommand::single_frame(command);
 263         int cur_audio = toggle_audio ?
 264                  !cur_single_frame : cur_single_frame;
 265
 266 // Dispatch command
 267         switch(command) {
 268         case FAST_REWIND:       // Commands that play back
 269         case NORMAL_REWIND:
 270         case SLOW_REWIND:
 271         case SINGLE_FRAME_REWIND:
 272         case SINGLE_FRAME_FWD:
 273         case SLOW_FWD:
 274         case NORMAL_FWD:
 275         case FAST_FWD:
 276                 if( !prev_single_frame &&
 277                     prev_command == command &&
 278                     cur_audio == prev_audio ) {
 279 // Same direction pressed twice and no change in audio state,  Stop
 280                         do_stop = 1;
 281                         break;
 282                 }
 283 // Resume or change direction
 284                 switch( prev_command ) {
 285                 default:
 286                         engine->que->send_command(STOP, CHANGE_NONE, 0, 0, 0, 0);
 287                         engine->interrupt_playback(wait_tracking);
 288                         resume = 1;
 289 // fall through
 290                 case STOP:
 291                 case COMMAND_NONE:
 292                 case SINGLE_FRAME_FWD:
 293                 case SINGLE_FRAME_REWIND:
 294 // Start from scratch
 295                         engine->que->send_command(command, CHANGE_NONE, get_edl(),
 296                                 1, resume, use_inout, toggle_audio);
 297                         break;
 298                 }
 299                 break;
 300
 301 // Commands that stop
 302         case STOP:
 303                 do_stop = 1;
 304                 break;
 305
 306         case REWIND:
 307         case GOTO_END:
 308                 engine->que->send_command(STOP, CHANGE_NONE, 0, 0, 0, 0);
 309                         engine->interrupt_playback(wait_tracking);
 310                         break;
 311         }
 312
 313         if( do_stop ) {
 314                 engine->que->send_command(STOP, CHANGE_NONE, 0, 0, 0, 0);
 315                 engine->interrupt_playback(wait_tracking);
 316         }
 317 }
 318
 319
 320 EDL* PlayTransport::get_edl()
 321 {
 322         return mwindow->edl;
 323 }
 324
 325 int PlayTransport::pause_transport()
 326 {
 327         if(active_button) active_button->set_mode(PLAY_MODE);
 328         return 0;
 329 }
 330
 331
 332 int PlayTransport::reset_transport()
 333 {
 334         fast_reverse->set_mode(PLAY_MODE);
 335         reverse_play->set_mode(PLAY_MODE);
 336         forward_play->set_mode(PLAY_MODE);
 337         frame_reverse_play->set_mode(PLAY_MODE);
 338         frame_forward_play->set_mode(PLAY_MODE);
 339         fast_play->set_mode(PLAY_MODE);
 340         return 0;
 341 }
 342
 343 PTransportButton::PTransportButton(MWindow *mwindow, PlayTransport *transport, int x, int y, VFrame **data)
 344  : BC_Button(x, y, data)
 345 {
 346         this->mwindow = mwindow;
 347         this->transport = transport;
 348         mode = PLAY_MODE;
 349 }
 350 PTransportButton::~PTransportButton()
 351 {
 352 }
 353
 354 int PTransportButton::set_mode(int mode)
 355 {
 356         this->mode = mode;
 357         return 0;
 358 }
 359
 360
 361 RewindButton::RewindButton(MWindow *mwindow, PlayTransport *transport, int x, int y)
 362  : PTransportButton(mwindow, transport, x, y, mwindow->theme->get_image_set("rewind"))
 363 {
 364         set_tooltip(_("Rewind ( Home )"));
 365 }
 366 int RewindButton::handle_event()
 367 {
 368 //      unlock_window();
 369         transport->goto_start();
 370 //      lock_window();
 371         return 1;
 372 }
 373
 374 FastReverseButton::FastReverseButton(MWindow *mwindow, PlayTransport *transport, int x, int y)
 375  : PTransportButton(mwindow, transport, x, y, mwindow->theme->get_image_set("fastrev"))
 376 {
 377         set_tooltip(_("Fast reverse ( + )"));
 378 }
 379 int FastReverseButton::handle_event()
 380 {
 381         unlock_window();
 382         transport->handle_transport(FAST_REWIND, 0, ctrl_down());
 383         lock_window("FastReverseButton::handle_event");
 384         return 1;
 385 }
 386
 387 // Reverse playback normal speed
 388
 389 ReverseButton::ReverseButton(MWindow *mwindow, PlayTransport *transport, int x, int y)
 390  : PTransportButton(mwindow, transport, x, y, mwindow->theme->get_image_set("reverse"))
 391 {
 392         set_tooltip(_("Normal reverse ( 6 )"));
 393 }
 394 int ReverseButton::handle_event()
 395 {
 396         unlock_window();
 397         transport->handle_transport(NORMAL_REWIND, 0, ctrl_down());
 398         lock_window("ReverseButton::handle_event");
 399         return 1;
 400 }
 401
 402 // Reverse playback one frame
 403
 404 FrameReverseButton::FrameReverseButton(MWindow *mwindow, PlayTransport *transport, int x, int y)
 405  : PTransportButton(mwindow, transport, x, y, mwindow->theme->get_image_set("framerev"))
 406 {
 407         set_tooltip(_("Frame reverse ( 4 )"));
 408 }
 409 int FrameReverseButton::handle_event()
 410 {
 411         unlock_window();
 412         transport->handle_transport(SINGLE_FRAME_REWIND, 0, ctrl_down());
 413         lock_window("FrameReverseButton::handle_event");
 414         return 1;
 415 }
 416
 417 // forward playback normal speed
 418
 419 PlayButton::PlayButton(MWindow *mwindow, PlayTransport *transport, int x, int y)
 420  : PTransportButton(mwindow, transport, x, y, mwindow->theme->get_image_set("play"))
 421 {
 422         set_tooltip(_("Normal forward ( 3 )"));
 423 }
 424 int PlayButton::handle_event()
 425 {
 426         unlock_window();
 427         transport->handle_transport(NORMAL_FWD, 0, ctrl_down());
 428         lock_window("PlayButton::handle_event");
 429         return 1;
 430 }
 431
 432
 433
 434 // forward playback one frame
 435
 436 FramePlayButton::FramePlayButton(MWindow *mwindow, PlayTransport *transport, int x, int y)
 437  : PTransportButton(mwindow, transport, x, y, mwindow->theme->get_image_set("framefwd"))
 438 {
 439         set_tooltip(_("Frame forward ( 1 )"));
 440 }
 441 int FramePlayButton::handle_event()
 442 {
 443         unlock_window();
 444         transport->handle_transport(SINGLE_FRAME_FWD, 0, ctrl_down());
 445         lock_window("FramePlayButton::handle_event");
 446         return 1;
 447 }
 448
 449
 450
 451 FastPlayButton::FastPlayButton(MWindow *mwindow, PlayTransport *transport, int x, int y)
 452  : PTransportButton(mwindow, transport, x, y, mwindow->theme->get_image_set("fastfwd"))
 453 {
 454         set_tooltip(_("Fast forward ( Enter )"));
 455 }
 456 int FastPlayButton::handle_event()
 457 {
 458         unlock_window();
 459         transport->handle_transport(FAST_FWD, 0, ctrl_down());
 460         lock_window("FastPlayButton::handle_event");
 461         return 1;
 462 }
 463
 464 EndButton::EndButton(MWindow *mwindow, PlayTransport *transport, int x, int y)
 465  : PTransportButton(mwindow, transport, x, y, mwindow->theme->get_image_set("end"))
 466 {
 467         set_tooltip(_("Jump to end ( End )"));
 468 }
 469 int EndButton::handle_event()
 470 {
 471 //      unlock_window();
 472         transport->goto_end();
 473 //      lock_window();
 474         return 1;
 475 }
 476
 477 StopButton::StopButton(MWindow *mwindow, PlayTransport *transport, int x, int y)
 478  : PTransportButton(mwindow, transport, x, y, mwindow->theme->get_image_set("stop"))
 479 {
 480         set_tooltip(_("Stop ( 0 )"));
 481 }
 482 int StopButton::handle_event()
 483 {
 484         unlock_window();
 485         transport->handle_transport(STOP, 0, 0);
 486         lock_window("StopButton::handle_event");
 487         return 1;
 488 }
 489
 490
 491
 492 void PlayTransport::change_position(double position)
 493 {
 494         EDL *edl = get_edl();
 495         if( !edl ) return;
 496         int prev_command = engine->command->command;
 497 // stop transport
 498         if( prev_command != STOP && prev_command != COMMAND_NONE &&
 499             prev_command != SINGLE_FRAME_FWD && prev_command != SINGLE_FRAME_REWIND ) {
 500                 engine->que->send_command(STOP, CHANGE_NONE, 0, 0, 0, 0);
 501                 engine->interrupt_playback(0);
 502         }
 503         mwindow->gui->lock_window("PlayTransport::change_position");
 504         mwindow->goto_position(position);
 505         mwindow->gui->unlock_window();
 506 // restart command
 507         switch(prev_command) {
 508         case FAST_REWIND:
 509         case NORMAL_REWIND:
 510         case SLOW_REWIND:
 511         case SLOW_FWD:
 512         case NORMAL_FWD:
 513         case FAST_FWD:
 514                 engine->que->send_command(prev_command, CHANGE_NONE,
 515                                 get_edl(), 1, 1, using_inout);
 516         }
 517 }
 518