cinelerra-5.1/cinelerra/timebar.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 1997-2014 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 "clip.h"
  24 #include "cplayback.h"
  25 #include "cursors.h"
  26 #include "cwindow.h"
  27 #include "edl.h"
  28 #include "edlsession.h"
  29 #include "filexml.h"
  30 #include "fonts.h"
  31 #include "labels.h"
  32 #include "labeledit.h"
  33 #include "localsession.h"
  34 #include "maincursor.h"
  35 #include "mainundo.h"
  36 #include "mbuttons.h"
  37 #include "mwindow.h"
  38 #include "mwindowgui.h"
  39 #include "patchbay.h"
  40 #include "preferences.h"
  41 #include "recordlabel.h"
  42 #include "localsession.h"
  43 #include "mainsession.h"
  44 #include "theme.h"
  45 #include "timebar.h"
  46 #include "timelinepane.h"
  47 #include "trackcanvas.h"
  48 #include "tracks.h"
  49 #include "transportque.h"
  50 #include "units.h"
  51 #include "vframe.h"
  52 #include "vwindow.h"
  53 #include "vwindowgui.h"
  54 #include "zoombar.h"
  55
  56
  57 LabelGUI::LabelGUI(MWindow *mwindow, TimeBar *timebar,
  58         int64_t pixel, int y,
  59         double position, VFrame **data)
  60  : BC_Toggle(translate_pixel(mwindow, pixel), y,
  61                 data ? data : mwindow->theme->label_toggle, 0)
  62 {
  63         this->mwindow = mwindow;
  64         this->timebar = timebar;
  65         this->gui = 0;
  66         this->pixel = pixel;
  67         this->position = position;
  68         this->label = 0;
  69 }
  70
  71 LabelGUI::~LabelGUI()
  72 {
  73 }
  74
  75 int LabelGUI::get_y(MWindow *mwindow, TimeBar *timebar)
  76 {
  77         return timebar->get_h() -
  78                 mwindow->theme->label_toggle[0]->get_h();
  79 }
  80
  81 int LabelGUI::translate_pixel(MWindow *mwindow, int pixel)
  82 {
  83         int result = pixel - mwindow->theme->label_toggle[0]->get_w() / 2;
  84         return result;
  85 }
  86
  87 void LabelGUI::reposition(int flush)
  88 {
  89         reposition_window(translate_pixel(mwindow, pixel),
  90                 BC_Toggle::get_y());
  91 }
  92
  93 int LabelGUI::button_press_event()
  94 {
  95         int result = 0;
  96
  97         if( this->is_event_win() && get_buttonpress() == 3 ) {
  98                 if( label ) {
  99                         int cur_x, cur_y;
 100                         get_abs_cursor(cur_x, cur_y, 0);
 101                         timebar->label_edit->start(label, cur_x, cur_y);
 102                 }
 103                 result = 1;
 104         } else {
 105                 result = BC_Toggle::button_press_event();
 106         }
 107         if( label )
 108                 set_tooltip(this->label->textstr);
 109         return result;
 110 }
 111
 112 int LabelGUI::handle_event()
 113 {
 114         timebar->select_label(position);
 115         return 1;
 116 }
 117
 118
 119 InPointGUI::InPointGUI(MWindow *mwindow, TimeBar *timebar,
 120         int64_t pixel, double position)
 121  : LabelGUI(mwindow, timebar,
 122         pixel, get_y(mwindow, timebar),
 123         position, mwindow->theme->in_point)
 124 {
 125 //printf("InPointGUI::InPointGUI %d %d\n", pixel, get_y(mwindow, timebar));
 126 }
 127 InPointGUI::~InPointGUI()
 128 {
 129 }
 130 int InPointGUI::get_y(MWindow *mwindow, TimeBar *timebar)
 131 {
 132         int result;
 133         result = timebar->get_h() -
 134                 mwindow->theme->in_point[0]->get_h();
 135         return result;
 136 }
 137
 138
 139 OutPointGUI::OutPointGUI(MWindow *mwindow, TimeBar *timebar,
 140         int64_t pixel, double position)
 141  : LabelGUI(mwindow, timebar,
 142         pixel, get_y(mwindow, timebar),
 143         position, mwindow->theme->out_point)
 144 {
 145 //printf("OutPointGUI::OutPointGUI %d %d\n", pixel, get_y(mwindow, timebar));
 146 }
 147 OutPointGUI::~OutPointGUI()
 148 {
 149 }
 150 int OutPointGUI::get_y(MWindow *mwindow, TimeBar *timebar)
 151 {
 152         return timebar->get_h() -
 153                 mwindow->theme->out_point[0]->get_h();
 154 }
 155
 156
 157 PresentationGUI::PresentationGUI(MWindow *mwindow, TimeBar *timebar,
 158         int64_t pixel, double position)
 159  : LabelGUI(mwindow, timebar, pixel, get_y(mwindow, timebar), position)
 160 {
 161 }
 162 PresentationGUI::~PresentationGUI()
 163 {
 164 }
 165
 166 TimeBar::TimeBar(MWindow *mwindow, BC_WindowBase *gui,
 167         int x, int y, int w, int h)
 168  : BC_SubWindow(x, y, w, h)
 169 {
 170 //printf("TimeBar::TimeBar %d %d %d %d\n", x, y, w, h);
 171         this->gui = gui;
 172         this->mwindow = mwindow;
 173         label_edit = new LabelEdit(mwindow, mwindow->awindow, 0);
 174         pane = 0;
 175         highlighted = 0;
 176 }
 177
 178 TimeBar::~TimeBar()
 179 {
 180         delete in_point;
 181         delete out_point;
 182         delete label_edit;
 183         labels.remove_all_objects();
 184         presentations.remove_all_objects();
 185 }
 186
 187 void TimeBar::create_objects()
 188 {
 189         in_point = 0;
 190         out_point = 0;
 191 //printf("TimeBar::create_objects %d\n", __LINE__);
 192         current_operation = TIMEBAR_NONE;
 193         set_cursor(UPRIGHT_ARROW_CURSOR, 0, 0);
 194         update(0);
 195 }
 196
 197
 198 int64_t TimeBar::position_to_pixel(double position)
 199 {
 200         get_edl_length();
 201         return (int64_t)(position / time_per_pixel);
 202 }
 203
 204
 205 double TimeBar::pixel_to_position(int pixel)
 206 {
 207         if( pane ) {
 208                 pixel += mwindow->edl->local_session->view_start[pane->number];
 209         }
 210
 211         return (double)pixel *
 212                 mwindow->edl->local_session->zoom_sample /
 213                 mwindow->edl->session->sample_rate;
 214 }
 215
 216 void TimeBar::update_labels()
 217 {
 218         int output = 0;
 219         EDL *edl = get_edl();
 220
 221         if( edl ) {
 222                 for( Label *current=edl->labels->first; current; current=NEXT ) {
 223                         int64_t pixel = position_to_pixel(current->position);
 224                         if( pixel >= 0 && pixel < get_w()  ) {
 225 // Create new label
 226                                 if( output >= labels.total ) {
 227                                         LabelGUI *new_label;
 228                                         add_subwindow(new_label =
 229                                                 new LabelGUI(mwindow,
 230                                                         this,
 231                                                         pixel,
 232                                                         LabelGUI::get_y(mwindow, this),
 233                                                         current->position));
 234                                         new_label->set_cursor(INHERIT_CURSOR, 0, 0);
 235                                         new_label->set_tooltip(current->textstr);
 236                                         new_label->label = current;
 237                                         labels.append(new_label);
 238                                 }
 239                                 else
 240 // Reposition old label
 241                                 {
 242                                         LabelGUI *gui = labels.values[output];
 243                                         if( gui->pixel != pixel ) {
 244                                                 gui->pixel = pixel;
 245                                                 gui->reposition(0);
 246                                         }
 247                                         else {
 248                                                 gui->draw_face(1,0);
 249                                         }
 250
 251                                         labels.values[output]->position = current->position;
 252                                         labels.values[output]->set_tooltip(current->textstr);
 253                                         labels.values[output]->label = current;
 254                                 }
 255
 256                                 if( edl->local_session->get_selectionstart(1) <= current->position &&
 257                                     edl->local_session->get_selectionend(1) >= current->position )
 258                                         labels.values[output]->update(1);
 259                                 else
 260                                 if( labels.values[output]->get_value() )
 261                                         labels.values[output]->update(0);
 262
 263                                 output++;
 264                         }
 265                 }
 266         }
 267
 268 // Delete excess labels
 269         while(labels.total > output)
 270         {
 271                 labels.remove_object();
 272         }
 273
 274 // Get the labels to show
 275         show_window(0);
 276 }
 277
 278 void TimeBar::update_highlights()
 279 {
 280         for( int i = 0; i < labels.total; i++ ) {
 281                 LabelGUI *label = labels.values[i];
 282                 if( mwindow->edl->equivalent(label->position,
 283                                 mwindow->edl->local_session->get_selectionstart(1)) ||
 284                     mwindow->edl->equivalent(label->position,
 285                                 mwindow->edl->local_session->get_selectionend(1)) ) {
 286                         if( !label->get_value() ) label->update(1);
 287                 }
 288                 else
 289                         if( label->get_value() ) label->update(0);
 290         }
 291
 292         if( mwindow->edl->equivalent(mwindow->edl->local_session->get_inpoint(),
 293                         mwindow->edl->local_session->get_selectionstart(1)) ||
 294                 mwindow->edl->equivalent(mwindow->edl->local_session->get_inpoint(),
 295                         mwindow->edl->local_session->get_selectionend(1)) ) {
 296                 if( in_point ) in_point->update(1);
 297         }
 298         else
 299                 if( in_point ) in_point->update(0);
 300
 301         if( mwindow->edl->equivalent(mwindow->edl->local_session->get_outpoint(),
 302                         mwindow->edl->local_session->get_selectionstart(1)) ||
 303                 mwindow->edl->equivalent(mwindow->edl->local_session->get_outpoint(),
 304                         mwindow->edl->local_session->get_selectionend(1)) ) {
 305                 if( out_point ) out_point->update(1);
 306         }
 307         else
 308                 if( out_point ) out_point->update(0);
 309 }
 310
 311 void TimeBar::update_points()
 312 {
 313         EDL *edl = get_edl();
 314         int64_t pixel = !edl ? 0 :
 315                 position_to_pixel(edl->local_session->get_inpoint());
 316
 317         if( in_point ) {
 318                 if( edl && edl->local_session->inpoint_valid() &&
 319                     pixel >= 0 && pixel < get_w() ) {
 320                         if( !EQUIV(edl->local_session->get_inpoint(), in_point->position) ||
 321                             in_point->pixel != pixel ) {
 322                                 in_point->pixel = pixel;
 323                                 in_point->position = edl->local_session->get_inpoint();
 324                                 in_point->reposition(0);
 325                         }
 326                         else {
 327                                 in_point->draw_face(1, 0);
 328                         }
 329                 }
 330                 else {
 331                         delete in_point;
 332                         in_point = 0;
 333                 }
 334         }
 335         else
 336         if( edl && edl->local_session->inpoint_valid() &&
 337             pixel >= 0 && pixel < get_w() ) {
 338                 add_subwindow(in_point = new InPointGUI(mwindow,
 339                         this, pixel, edl->local_session->get_inpoint()));
 340                 in_point->set_cursor(ARROW_CURSOR, 0, 0);
 341         }
 342
 343         pixel = !edl ? 0 :
 344                  position_to_pixel(edl->local_session->get_outpoint());
 345
 346         if( out_point ) {
 347                 if( edl && edl->local_session->outpoint_valid() &&
 348                     pixel >= 0 && pixel < get_w()) {
 349                         if( !EQUIV(edl->local_session->get_outpoint(), out_point->position) ||
 350                             out_point->pixel != pixel ) {
 351                                 out_point->pixel = pixel;
 352                                 out_point->position = edl->local_session->get_outpoint();
 353                                 out_point->reposition(0);
 354                         }
 355                         else {
 356                                 out_point->draw_face(1, 0);
 357                         }
 358                 }
 359                 else {
 360                         delete out_point;
 361                         out_point = 0;
 362                 }
 363         }
 364         else
 365         if( edl && edl->local_session->outpoint_valid() &&
 366             pixel >= 0 && pixel < get_w() ) {
 367                 add_subwindow(out_point = new OutPointGUI(mwindow,
 368                         this, pixel, edl->local_session->get_outpoint()));
 369                 out_point->set_cursor(ARROW_CURSOR, 0, 0);
 370         }
 371
 372 //      flush();
 373 }
 374
 375 void TimeBar::update_clock(double position)
 376 {
 377 }
 378
 379 void TimeBar::update(int flush)
 380 {
 381         draw_time();
 382 // Need to redo these when range is drawn to get the background updated.
 383         update_labels();
 384         update_points();
 385
 386
 387         EDL *edl = get_edl();
 388         int64_t pixel = -1;
 389         int x = get_relative_cursor_x();
 390 // Draw highlight position
 391         if( edl && (highlighted || current_operation == TIMEBAR_DRAG) &&
 392             x >= 0 && x < get_w() ) {
 393 //printf("TimeBar::update %d %d\n", __LINE__, x);
 394                 double position = pixel_to_position(x);
 395
 396                 position = get_edl()->align_to_frame(position, 0);
 397                 pixel = position_to_pixel(position);
 398                 update_clock(position);
 399         }
 400
 401         if( pixel < 0 ) {
 402                 double position = test_highlight();
 403                 if( position >= 0 ) pixel = position_to_pixel(position);
 404         }
 405
 406
 407         if( pixel >= 0 && pixel < get_w() ) {
 408                 set_color(mwindow->theme->timebar_cursor_color);
 409                 set_line_dashes(1);
 410 //printf("TimeBar::update %d pane=%d pixel=%jd\n", __LINE__, pane->number, pixel);
 411                 draw_line(pixel, 0, pixel, get_h());
 412                 set_line_dashes(0);
 413         }
 414
 415
 416         if( edl ) {
 417                 double playback_start = edl->local_session->playback_start;
 418                 if( playback_start >= 0 ) {
 419                         int64_t pixel = position_to_pixel(playback_start);
 420                         set_color(mwindow->theme->timebar_cursor_color ^ 0x0000ff);
 421                         draw_line(pixel, 0, pixel, get_h());
 422                         double playback_end = edl->local_session->playback_end;
 423                         if( playback_end > playback_start ) {
 424                                 pixel = position_to_pixel(playback_end);
 425                                 set_color(mwindow->theme->timebar_cursor_color ^ 0x00ff00);
 426                                 draw_line(pixel, 0, pixel, get_h());
 427                         }
 428                 }
 429
 430                 double position = edl->local_session->get_selectionstart(1);
 431                 int64_t pixel = position_to_pixel(position);
 432 // Draw insertion point position.
 433                 int color = mwindow->theme->timebar_cursor_color;
 434                 if( mwindow->preferences->forward_render_displacement )
 435                         color ^= 0x00ffff;
 436                 set_color(color);
 437                 draw_line(pixel, 0, pixel, get_h());
 438         }
 439
 440         update_highlights();
 441
 442 // Get the labels to show
 443         show_window(0);
 444         flash(flush);
 445 //printf("TimeBar::update %d this=%p %d\n", __LINE__, this, current_operation);
 446 }
 447
 448
 449
 450 int TimeBar::delete_project()
 451 {
 452 //      labels->delete_all();
 453         return 0;
 454 }
 455
 456 int TimeBar::save(FileXML *xml)
 457 {
 458 //      labels->save(xml);
 459         return 0;
 460 }
 461
 462
 463
 464
 465 void TimeBar::draw_time()
 466 {
 467 }
 468
 469 EDL* TimeBar::get_edl()
 470 {
 471         return mwindow->edl;
 472 }
 473
 474
 475
 476 void TimeBar::draw_range()
 477 {
 478
 479
 480 //printf("TimeBar::draw_range %d %p\n", __LINE__, get_edl());
 481         if( has_preview() && get_edl() ) {
 482                 int x1, x2;
 483                 get_preview_pixels(x1, x2);
 484
 485 //printf("TimeBar::draw_range %f %d %d\n", edl_length, x1, x2);
 486                 draw_3segmenth(0, 0, x1, mwindow->theme->timebar_view_data);
 487                 draw_top_background(get_parent(), x1, 0, x2 - x1, get_h());
 488                 draw_3segmenth(x2, 0, get_w() - x2, mwindow->theme->timebar_view_data);
 489
 490                 set_color(BLACK);
 491                 draw_line(x1, 0, x1, get_h());
 492                 draw_line(x2, 0, x2, get_h());
 493
 494
 495                 EDL *edl = get_edl();
 496                 if( edl ) {
 497                         int64_t pixel = position_to_pixel(
 498                                 edl->local_session->get_selectionstart(1));
 499 // Draw insertion point position if this timebar belongs to a window which
 500 // has something other than the master EDL.
 501                         set_color(mwindow->theme->timebar_cursor_color);
 502                         draw_line(pixel, 0, pixel, get_h());
 503                 }
 504         }
 505         else
 506                 draw_top_background(get_parent(), 0, 0, get_w(), get_h());
 507 }
 508
 509 void TimeBar::select_label(double position)
 510 {
 511 }
 512
 513
 514
 515 int TimeBar::draw()
 516 {
 517         return 0;
 518 }
 519
 520 double TimeBar::get_edl_length()
 521 {
 522         edl_length = get_edl() ? get_edl()->tracks->total_length() : 0;
 523         int w1 = get_w()-1;
 524         time_per_pixel = !EQUIV(edl_length, 0) ? edl_length/w1 : w1;
 525         return edl_length;
 526 }
 527
 528 int TimeBar::get_preview_pixels(int &x1, int &x2)
 529 {
 530         x1 = 0;
 531         x2 = 0;
 532
 533         get_edl_length();
 534
 535         if( get_edl() ) {
 536                 if( !EQUIV(edl_length, 0) ) {
 537                         if( get_edl()->local_session->preview_end <= 0 ||
 538                             get_edl()->local_session->preview_end > edl_length )
 539                                 get_edl()->local_session->preview_end = edl_length;
 540                         if( get_edl()->local_session->preview_start >
 541                                 get_edl()->local_session->preview_end )
 542                                 get_edl()->local_session->preview_start = 0;
 543                         x1 = (int)(get_edl()->local_session->preview_start / time_per_pixel);
 544                         x2 = (int)(get_edl()->local_session->preview_end / time_per_pixel);
 545                 }
 546                 else {
 547                         x1 = 0;
 548                         x2 = get_w();
 549                 }
 550         }
 551 // printf("TimeBar::get_preview_pixels %f %f %d %d\n",
 552 //      get_edl()->local_session->preview_start,
 553 //      get_edl()->local_session->preview_end,
 554 //      x1,
 555 //      x2);
 556         return 0;
 557 }
 558
 559
 560 int TimeBar::test_preview(int buttonpress)
 561 {
 562         int result = 0;
 563
 564
 565         if( get_edl() && cursor_inside() && buttonpress >= 0 ) {
 566                 int x1, x2, x = get_relative_cursor_x();
 567                 get_preview_pixels(x1, x2);
 568 //printf("TimeBar::test_preview %d %d %d\n", x1, x2, x);
 569 // Inside left handle
 570                 if( x >= x1 - HANDLE_W && x < x1 + HANDLE_W &&
 571 // Ignore left handle if both handles are up against the left side
 572                     x2 > HANDLE_W ) {
 573                         if( buttonpress ) {
 574                                 current_operation = TIMEBAR_DRAG_LEFT;
 575                                 start_position = get_edl()->local_session->preview_start;
 576                                 start_cursor_x = x;
 577                         }
 578                         else if( get_cursor() != LEFT_CURSOR )
 579                                 set_cursor(LEFT_CURSOR, 0, 1);
 580                         result = 1;
 581                 }
 582 // Inside right handle
 583                 else if( x >= x2 - HANDLE_W && x < x2 + HANDLE_W &&
 584 // Ignore right handle if both handles are up against the right side
 585                     x1 < get_w() - HANDLE_W ) {
 586                         if( buttonpress ) {
 587                                 current_operation = TIMEBAR_DRAG_RIGHT;
 588                                 start_position = get_edl()->local_session->preview_end;
 589                                 start_cursor_x = x;
 590                         }
 591                         else if( get_cursor() != RIGHT_CURSOR )
 592                                 set_cursor(RIGHT_CURSOR, 0, 1);
 593                         result = 1;
 594                 }
 595 // Inside preview
 596                 else if( get_button_down() && get_buttonpress() == 3 &&
 597                     x >= x1 && x < x2 ) {
 598                         if( buttonpress ) {
 599                                 current_operation = TIMEBAR_DRAG_CENTER;
 600                                 starting_start_position = get_edl()->local_session->preview_start;
 601                                 starting_end_position = get_edl()->local_session->preview_end;
 602                                 start_cursor_x = x;
 603                         }
 604                         if( get_cursor() != HSEPARATE_CURSOR )
 605                                 set_cursor(HSEPARATE_CURSOR, 0, 1);
 606                         result = 1;
 607                 }
 608         }
 609
 610         if( !result && get_cursor() != ARROW_CURSOR )
 611                 set_cursor(ARROW_CURSOR, 0, 1);
 612
 613
 614         return result;
 615 }
 616
 617 int TimeBar::move_preview(int &redraw)
 618 {
 619         int result = 0, x = get_relative_cursor_x();
 620
 621         if( current_operation == TIMEBAR_DRAG_LEFT ) {
 622                 get_edl()->local_session->preview_start =
 623                         start_position + time_per_pixel * (x - start_cursor_x);
 624                 CLAMP(get_edl()->local_session->preview_start,
 625                         0,
 626                         get_edl()->local_session->preview_end);
 627                 result = 1;
 628         }
 629         else
 630         if( current_operation == TIMEBAR_DRAG_RIGHT ) {
 631                 get_edl()->local_session->preview_end =
 632                         start_position + time_per_pixel * (x - start_cursor_x);
 633                 CLAMP(get_edl()->local_session->preview_end,
 634                         get_edl()->local_session->preview_start,
 635                         edl_length);
 636                 result = 1;
 637         }
 638         else
 639         if( current_operation == TIMEBAR_DRAG_CENTER ) {
 640                 double dt = time_per_pixel * (x - start_cursor_x);
 641                 get_edl()->local_session->preview_start = starting_start_position + dt;
 642                 get_edl()->local_session->preview_end = starting_end_position + dt;
 643                 if( get_edl()->local_session->preview_start < 0 ) {
 644                         get_edl()->local_session->preview_end -= get_edl()->local_session->preview_start;
 645                         get_edl()->local_session->preview_start = 0;
 646                 }
 647                 else
 648                 if( get_edl()->local_session->preview_end > edl_length ) {
 649                         get_edl()->local_session->preview_start -= get_edl()->local_session->preview_end - edl_length;
 650                         get_edl()->local_session->preview_end = edl_length;
 651                 }
 652                 result = 1;
 653         }
 654
 655 //printf("TimeBar::move_preview %d %d\n", __LINE__, current_operation);
 656
 657         if( result ) {
 658                 update_preview();
 659                 redraw = 1;
 660         }
 661 //printf("TimeBar::move_preview %d %d\n", __LINE__, current_operation);
 662
 663         return result;
 664 }
 665
 666 void TimeBar::update_preview()
 667 {
 668 }
 669
 670 int TimeBar::samplemovement()
 671 {
 672         return 0;
 673 }
 674
 675 void TimeBar::stop_playback()
 676 {
 677 }
 678
 679 int TimeBar::button_press_event()
 680 {
 681         int result = 0;
 682         if( is_event_win() && cursor_above() ) {
 683                 if( has_preview() && get_buttonpress() == 3 ) {
 684                         result = test_preview(1);
 685                 }
 686 // Change time format
 687                 else if( ctrl_down() ) {
 688                         if( get_buttonpress() == 1 )
 689                                 mwindow->next_time_format();
 690                         else
 691                         if( get_buttonpress() == 2 )
 692                                 mwindow->prev_time_format();
 693                         result = 1;
 694                 }
 695                 else if( get_buttonpress() == 1 ) {
 696                         stop_playback();
 697
 698 // Select region between two labels
 699                         if( get_double_click() ) {
 700                                 int x = get_relative_cursor_x();
 701                                 double position = pixel_to_position(x);
 702 // Test labels
 703                                 select_region(position);
 704                         }
 705                         else {
 706
 707 // Reposition highlight cursor
 708                                 update_cursor();
 709                                 current_operation = TIMEBAR_DRAG;
 710                                 activate_timeline();
 711                         }
 712                         result = 1;
 713                 }
 714         }
 715         return result;
 716 }
 717
 718 void TimeBar::activate_timeline()
 719 {
 720         mwindow->gui->activate_timeline();
 721 }
 722
 723 int TimeBar::cursor_motion_event()
 724 {
 725         int result = 0;
 726         int redraw = 0;
 727
 728 //printf("TimeBar::cursor_motion_event %d %p %d\n", __LINE__, this, current_operation);
 729         switch( current_operation )
 730         {
 731                 case TIMEBAR_DRAG:
 732                 {
 733                         update_cursor();
 734                         handle_mwindow_drag();
 735                         result = 1;
 736 //printf("TimeBar::cursor_motion_event %d %d\n", __LINE__, current_operation);
 737                         break;
 738                 }
 739
 740
 741                 case TIMEBAR_DRAG_LEFT:
 742                 case TIMEBAR_DRAG_RIGHT:
 743                 case TIMEBAR_DRAG_CENTER:
 744                         if( has_preview() )
 745                                 result = move_preview(redraw);
 746                         break;
 747
 748                 default:
 749                         if( cursor_above() ) {
 750                                 highlighted = 1;
 751                                 redraw = 1;
 752                         }
 753
 754 //printf("TimeBar::cursor_motion_event 20\n");
 755                         if( has_preview() )
 756                                 result = test_preview(0);
 757 //printf("TimeBar::cursor_motion_event 30\n");
 758                         break;
 759         }
 760
 761
 762 //printf("TimeBar::cursor_motion_event %d %d\n", __LINE__, current_operation);
 763         if( redraw ) {
 764                 update(1);
 765         }
 766 //printf("TimeBar::cursor_motion_event %d %p %d\n", __LINE__, this, current_operation);
 767
 768         return result;
 769 }
 770
 771 int TimeBar::cursor_leave_event()
 772 {
 773         if( highlighted ) {
 774                 highlighted = 0;
 775                 update(1);
 776         }
 777         return 0;
 778 }
 779
 780 int TimeBar::button_release_event()
 781 {
 782 //printf("TimeBar::button_release_event %d %d\n", __LINE__, current_operation);
 783         int result = 0;
 784         int need_redraw = 0;
 785         switch( current_operation )
 786         {
 787                 case TIMEBAR_DRAG:
 788                         mwindow->gui->get_focused_pane()->canvas->stop_dragscroll();
 789                         current_operation = TIMEBAR_NONE;
 790                         need_redraw = 1;
 791                         result = 1;
 792                         break;
 793
 794                 default:
 795                         if( current_operation != TIMEBAR_NONE ) {
 796                                 current_operation = TIMEBAR_NONE;
 797                                 result = 1;
 798                         }
 799                         break;
 800         }
 801
 802         if( (!cursor_above() && highlighted) || need_redraw ) {
 803                 highlighted = 0;
 804                 update(1);
 805         }
 806
 807         return result;
 808 }
 809
 810 // Update the selection cursor during a dragging operation
 811 void TimeBar::update_cursor()
 812 {
 813 }
 814
 815 void TimeBar::handle_mwindow_drag()
 816 {
 817 }
 818
 819 int TimeBar::select_region(double position)
 820 {
 821         Label *start = 0, *end = 0, *current;
 822         for( current = mwindow->edl->labels->first; current; current = NEXT ) {
 823                 if( current->position > position ) {
 824                         end = current;
 825                         break;
 826                 }
 827         }
 828
 829         for( current = mwindow->edl->labels->last ; current; current = PREVIOUS ) {
 830                 if( current->position <= position ) {
 831                         start = current;
 832                         break;
 833                 }
 834         }
 835
 836 // Select region
 837         if( end != start ) {
 838                 if( !start )
 839                         mwindow->edl->local_session->set_selectionstart(0);
 840                 else
 841                         mwindow->edl->local_session->set_selectionstart(start->position);
 842
 843                 if( !end )
 844                         mwindow->edl->local_session->set_selectionend(mwindow->edl->tracks->total_length());
 845                 else
 846                         mwindow->edl->local_session->set_selectionend(end->position);
 847         }
 848         else
 849         if( end || start ) {
 850                 mwindow->edl->local_session->set_selectionstart(start->position);
 851                 mwindow->edl->local_session->set_selectionend(start->position);
 852         }
 853
 854 // Que the CWindow
 855         mwindow->cwindow->update(1, 0, 0);
 856         mwindow->gui->hide_cursor(0);
 857         mwindow->gui->draw_cursor(1);
 858         mwindow->gui->flash_canvas(0);
 859         mwindow->gui->activate_timeline();
 860         mwindow->gui->zoombar->update();
 861         update_highlights();
 862         return 0;
 863 }
 864
 865
 866
 867
 868 int TimeBar::delete_arrows()
 869 {
 870         return 0;
 871 }
 872
 873 double TimeBar::test_highlight()
 874 {
 875         return -1;
 876 }
 877
 878