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 "cwindowgui.h"
  28 #include "edl.h"
  29 #include "edlsession.h"
  30 #include "filexml.h"
  31 #include "fonts.h"
  32 #include "labels.h"
  33 #include "labeledit.h"
  34 #include "localsession.h"
  35 #include "maincursor.h"
  36 #include "mainundo.h"
  37 #include "mbuttons.h"
  38 #include "mwindow.h"
  39 #include "mwindowgui.h"
  40 #include "patchbay.h"
  41 #include "preferences.h"
  42 #include "recordlabel.h"
  43 #include "localsession.h"
  44 #include "mainsession.h"
  45 #include "theme.h"
  46 #include "timebar.h"
  47 #include "timelinepane.h"
  48 #include "trackcanvas.h"
  49 #include "tracks.h"
  50 #include "transportque.h"
  51 #include "units.h"
  52 #include "vframe.h"
  53 #include "vwindow.h"
  54 #include "vwindowgui.h"
  55 #include "zoombar.h"
  56
  57
  58 LabelGUI::LabelGUI(MWindow *mwindow, TimeBar *timebar,
  59         int64_t pixel, int y,
  60         double position, VFrame **data)
  61  : BC_Toggle(translate_pixel(mwindow, pixel), y,
  62                 data ? data : mwindow->theme->label_toggle, 0)
  63 {
  64         this->mwindow = mwindow;
  65         this->timebar = timebar;
  66         this->gui = 0;
  67         this->pixel = pixel;
  68         this->position = position;
  69         this->label = 0;
  70 }
  71
  72 LabelGUI::~LabelGUI()
  73 {
  74 }
  75
  76 int LabelGUI::get_y(MWindow *mwindow, TimeBar *timebar)
  77 {
  78         return timebar->get_h() -
  79                 mwindow->theme->label_toggle[0]->get_h();
  80 }
  81
  82 int LabelGUI::translate_pixel(MWindow *mwindow, int pixel)
  83 {
  84         int result = pixel - mwindow->theme->label_toggle[0]->get_w() / 2;
  85         return result;
  86 }
  87
  88 void LabelGUI::reposition(int flush)
  89 {
  90         reposition_window(translate_pixel(mwindow, pixel),
  91                 BC_Toggle::get_y());
  92 }
  93
  94 int LabelGUI::button_press_event()
  95 {
  96         int result = 0;
  97
  98         if( this->is_event_win() && get_buttonpress() == 3 ) {
  99                 if( label ) {
 100                         int cur_x, cur_y;
 101                         get_abs_cursor(cur_x, cur_y, 0);
 102                         timebar->label_edit->start(label, cur_x, cur_y);
 103                 }
 104                 result = 1;
 105         } else {
 106                 result = BC_Toggle::button_press_event();
 107         }
 108         if( label )
 109                 set_tooltip(this->label->textstr);
 110         return result;
 111 }
 112
 113 int LabelGUI::handle_event()
 114 {
 115         timebar->select_label(position);
 116         return 1;
 117 }
 118
 119
 120 InPointGUI::InPointGUI(MWindow *mwindow, TimeBar *timebar,
 121         int64_t pixel, double position)
 122  : LabelGUI(mwindow, timebar,
 123         pixel, get_y(mwindow, timebar),
 124         position, mwindow->theme->in_point)
 125 {
 126 //printf("InPointGUI::InPointGUI %d %d\n", pixel, get_y(mwindow, timebar));
 127 }
 128 InPointGUI::~InPointGUI()
 129 {
 130 }
 131 int InPointGUI::get_y(MWindow *mwindow, TimeBar *timebar)
 132 {
 133         int result;
 134         result = timebar->get_h() -
 135                 mwindow->theme->in_point[0]->get_h();
 136         return result;
 137 }
 138
 139
 140 OutPointGUI::OutPointGUI(MWindow *mwindow, TimeBar *timebar,
 141         int64_t pixel, double position)
 142  : LabelGUI(mwindow, timebar,
 143         pixel, get_y(mwindow, timebar),
 144         position, mwindow->theme->out_point)
 145 {
 146 //printf("OutPointGUI::OutPointGUI %d %d\n", pixel, get_y(mwindow, timebar));
 147 }
 148 OutPointGUI::~OutPointGUI()
 149 {
 150 }
 151 int OutPointGUI::get_y(MWindow *mwindow, TimeBar *timebar)
 152 {
 153         return timebar->get_h() -
 154                 mwindow->theme->out_point[0]->get_h();
 155 }
 156
 157
 158 PresentationGUI::PresentationGUI(MWindow *mwindow, TimeBar *timebar,
 159         int64_t pixel, double position)
 160  : LabelGUI(mwindow, timebar, pixel, get_y(mwindow, timebar), position)
 161 {
 162 }
 163 PresentationGUI::~PresentationGUI()
 164 {
 165 }
 166
 167 TimeBar::TimeBar(MWindow *mwindow, BC_WindowBase *gui,
 168         int x, int y, int w, int h)
 169  : BC_SubWindow(x, y, w, h)
 170 {
 171 //printf("TimeBar::TimeBar %d %d %d %d\n", x, y, w, h);
 172         this->gui = gui;
 173         this->mwindow = mwindow;
 174         label_edit = new LabelEdit(mwindow, mwindow->awindow, 0);
 175         pane = 0;
 176         highlighted = 0;
 177 }
 178
 179 TimeBar::~TimeBar()
 180 {
 181         delete in_point;
 182         delete out_point;
 183         delete label_edit;
 184         labels.remove_all_objects();
 185         presentations.remove_all_objects();
 186 }
 187
 188 void TimeBar::create_objects()
 189 {
 190         in_point = 0;
 191         out_point = 0;
 192 //printf("TimeBar::create_objects %d\n", __LINE__);
 193         current_operation = TIMEBAR_NONE;
 194         set_cursor(UPRIGHT_ARROW_CURSOR, 0, 0);
 195         update(0);
 196 }
 197
 198
 199 int64_t TimeBar::position_to_pixel(double position)
 200 {
 201         get_edl_length();
 202         return (int64_t)(position / time_per_pixel);
 203 }
 204
 205
 206 double TimeBar::pixel_to_position(int pixel)
 207 {
 208         if( pane ) {
 209                 pixel += get_edl()->local_session->view_start[pane->number];
 210         }
 211
 212         return (double)pixel *
 213                 get_edl()->local_session->zoom_sample /
 214                 get_edl()->session->sample_rate;
 215 }
 216
 217 void TimeBar::update_labels()
 218 {
 219         int output = 0;
 220         EDL *edl = get_edl();
 221
 222         if( edl ) {
 223                 for( Label *current=edl->labels->first; current; current=NEXT ) {
 224                         int64_t pixel = position_to_pixel(current->position);
 225                         if( pixel >= 0 && pixel < get_w()  ) {
 226 // Create new label
 227                                 if( output >= labels.total ) {
 228                                         LabelGUI *new_label;
 229                                         add_subwindow(new_label =
 230                                                 new LabelGUI(mwindow,
 231                                                         this,
 232                                                         pixel,
 233                                                         LabelGUI::get_y(mwindow, this),
 234                                                         current->position));
 235                                         new_label->set_cursor(INHERIT_CURSOR, 0, 0);
 236                                         new_label->set_tooltip(current->textstr);
 237                                         new_label->label = current;
 238                                         labels.append(new_label);
 239                                 }
 240                                 else
 241 // Reposition old label
 242                                 {
 243                                         LabelGUI *gui = labels.values[output];
 244                                         if( gui->pixel != pixel ) {
 245                                                 gui->pixel = pixel;
 246                                                 gui->reposition(0);
 247                                         }
 248                                         else {
 249                                                 gui->draw_face(1,0);
 250                                         }
 251
 252                                         labels.values[output]->position = current->position;
 253                                         labels.values[output]->set_tooltip(current->textstr);
 254                                         labels.values[output]->label = current;
 255                                 }
 256
 257                                 if( edl->local_session->get_selectionstart(1) <= current->position &&
 258                                     edl->local_session->get_selectionend(1) >= current->position )
 259                                         labels.values[output]->update(1);
 260                                 else
 261                                 if( labels.values[output]->get_value() )
 262                                         labels.values[output]->update(0);
 263
 264                                 output++;
 265                         }
 266                 }
 267         }
 268
 269 // Delete excess labels
 270         while(labels.total > output)
 271         {
 272                 labels.remove_object();
 273         }
 274
 275 // Get the labels to show
 276         show_window(0);
 277 }
 278
 279 void TimeBar::update_highlights()
 280 {
 281         EDL *edl = get_edl();
 282         if( !edl ) return;
 283         for( int i = 0; i < labels.total; i++ ) {
 284                 LabelGUI *label = labels.values[i];
 285                 if( edl->equivalent(label->position,
 286                                 edl->local_session->get_selectionstart(1)) ||
 287                     edl->equivalent(label->position,
 288                                 edl->local_session->get_selectionend(1)) ) {
 289                         if( !label->get_value() ) label->update(1);
 290                 }
 291                 else
 292                         if( label->get_value() ) label->update(0);
 293         }
 294
 295         if( edl->equivalent(edl->local_session->get_inpoint(),
 296                         edl->local_session->get_selectionstart(1)) ||
 297                 edl->equivalent(edl->local_session->get_inpoint(),
 298                         edl->local_session->get_selectionend(1)) ) {
 299                 if( in_point ) in_point->update(1);
 300         }
 301         else
 302                 if( in_point ) in_point->update(0);
 303
 304         if( edl->equivalent(edl->local_session->get_outpoint(),
 305                         edl->local_session->get_selectionstart(1)) ||
 306                 edl->equivalent(edl->local_session->get_outpoint(),
 307                         edl->local_session->get_selectionend(1)) ) {
 308                 if( out_point ) out_point->update(1);
 309         }
 310         else
 311                 if( out_point ) out_point->update(0);
 312
 313         draw_inout_highlight();
 314 }
 315
 316 void TimeBar::draw_inout_highlight()
 317 {
 318         EDL *edl = get_edl();
 319         if( !edl->local_session->inpoint_valid() ) return;
 320         if( !edl->local_session->outpoint_valid() ) return;
 321         double in_position = edl->local_session->get_inpoint();
 322         double out_position = edl->local_session->get_outpoint();
 323         if( in_position >= out_position ) return;
 324         int in_x = position_to_pixel(in_position);
 325         int out_x = position_to_pixel(out_position);
 326         CLAMP(in_x, 0, get_w());
 327         CLAMP(out_x, 0, get_w());
 328         set_color(GREEN);
 329         int lw = 5;
 330         set_line_width(lw);
 331         set_inverse();
 332         draw_line(in_x, get_h()-2*lw, out_x, get_h()-2*lw);
 333         set_opaque();
 334         set_line_width(1);
 335 }
 336
 337 void TimeBar::update_points()
 338 {
 339         EDL *edl = get_edl();
 340         int64_t pixel = !edl ? 0 :
 341                 position_to_pixel(edl->local_session->get_inpoint());
 342
 343         if( in_point ) {
 344                 if( edl && edl->local_session->inpoint_valid() &&
 345                     pixel >= 0 && pixel < get_w() ) {
 346                         if( !EQUIV(edl->local_session->get_inpoint(), in_point->position) ||
 347                             in_point->pixel != pixel ) {
 348                                 in_point->pixel = pixel;
 349                                 in_point->position = edl->local_session->get_inpoint();
 350                                 in_point->reposition(0);
 351                         }
 352                         else {
 353                                 in_point->draw_face(1, 0);
 354                         }
 355                 }
 356                 else {
 357                         delete in_point;
 358                         in_point = 0;
 359                 }
 360         }
 361         else
 362         if( edl && edl->local_session->inpoint_valid() &&
 363             pixel >= 0 && pixel < get_w() ) {
 364                 add_subwindow(in_point = new InPointGUI(mwindow,
 365                         this, pixel, edl->local_session->get_inpoint()));
 366                 in_point->set_cursor(ARROW_CURSOR, 0, 0);
 367         }
 368
 369         pixel = !edl ? 0 :
 370                  position_to_pixel(edl->local_session->get_outpoint());
 371
 372         if( out_point ) {
 373                 if( edl && edl->local_session->outpoint_valid() &&
 374                     pixel >= 0 && pixel < get_w()) {
 375                         if( !EQUIV(edl->local_session->get_outpoint(), out_point->position) ||
 376                             out_point->pixel != pixel ) {
 377                                 out_point->pixel = pixel;
 378                                 out_point->position = edl->local_session->get_outpoint();
 379                                 out_point->reposition(0);
 380                         }
 381                         else {
 382                                 out_point->draw_face(1, 0);
 383                         }
 384                 }
 385                 else {
 386                         delete out_point;
 387                         out_point = 0;
 388                 }
 389         }
 390         else
 391         if( edl && edl->local_session->outpoint_valid() &&
 392             pixel >= 0 && pixel < get_w() ) {
 393                 add_subwindow(out_point = new OutPointGUI(mwindow,
 394                         this, pixel, edl->local_session->get_outpoint()));
 395                 out_point->set_cursor(ARROW_CURSOR, 0, 0);
 396         }
 397
 398 //      flush();
 399 }
 400
 401 void TimeBar::update_clock(double position)
 402 {
 403 }
 404
 405 void TimeBar::update(int flush)
 406 {
 407         draw_time();
 408 // Need to redo these when range is drawn to get the background updated.
 409         update_labels();
 410         update_points();
 411
 412
 413         EDL *edl = get_edl();
 414         int64_t pixel = -1;
 415         int x = get_relative_cursor_x();
 416 // Draw highlight position
 417         if( edl && (highlighted || current_operation == TIMEBAR_DRAG) &&
 418             x >= 0 && x < get_w() ) {
 419 //printf("TimeBar::update %d %d\n", __LINE__, x);
 420                 double position = pixel_to_position(x);
 421
 422                 position = mwindow->edl->align_to_frame(position, 0);
 423                 pixel = position_to_pixel(position);
 424                 update_clock(position);
 425         }
 426
 427         if( pixel < 0 ) {
 428                 double position = test_highlight();
 429                 if( position >= 0 ) pixel = position_to_pixel(position);
 430         }
 431
 432
 433         if( pixel >= 0 && pixel < get_w() ) {
 434                 set_color(mwindow->theme->timebar_cursor_color);
 435                 set_line_dashes(1);
 436 //printf("TimeBar::update %d pane=%d pixel=%jd\n", __LINE__, pane->number, pixel);
 437                 draw_line(pixel, 0, pixel, get_h());
 438                 set_line_dashes(0);
 439         }
 440
 441
 442         if( edl ) {
 443                 double playback_start = edl->local_session->playback_start;
 444                 if( playback_start >= 0 ) {
 445                         int64_t pixel = position_to_pixel(playback_start);
 446                         set_color(mwindow->theme->timebar_cursor_color ^ 0x0000ff);
 447                         draw_line(pixel, 0, pixel, get_h());
 448                         double playback_end = edl->local_session->playback_end;
 449                         if( playback_end > playback_start ) {
 450                                 pixel = position_to_pixel(playback_end);
 451                                 set_color(mwindow->theme->timebar_cursor_color ^ 0x00ff00);
 452                                 draw_line(pixel, 0, pixel, get_h());
 453                         }
 454                 }
 455
 456                 double position = edl->local_session->get_selectionstart(1);
 457                 int64_t pixel = position_to_pixel(position);
 458 // Draw insertion point position.
 459                 int color = mwindow->theme->timebar_cursor_color;
 460                 if( mwindow->preferences->forward_render_displacement )
 461                         color ^= 0x00ffff;
 462                 set_color(color);
 463                 draw_line(pixel, 0, pixel, get_h());
 464         }
 465
 466         update_highlights();
 467
 468 // Get the labels to show
 469         show_window(0);
 470         flash(flush);
 471 //printf("TimeBar::update %d this=%p %d\n", __LINE__, this, current_operation);
 472 }
 473
 474
 475
 476 int TimeBar::delete_project()
 477 {
 478 //      labels->delete_all();
 479         return 0;
 480 }
 481
 482 int TimeBar::save(FileXML *xml)
 483 {
 484 //      labels->save(xml);
 485         return 0;
 486 }
 487
 488
 489
 490
 491 void TimeBar::draw_time()
 492 {
 493 }
 494
 495 EDL* TimeBar::get_edl()
 496 {
 497         return mwindow->edl;
 498 }
 499
 500
 501
 502 void TimeBar::draw_range()
 503 {
 504
 505
 506 //printf("TimeBar::draw_range %d %p\n", __LINE__, get_edl());
 507         if( has_preview() && get_edl() ) {
 508                 int x1, x2;
 509                 get_preview_pixels(x1, x2);
 510
 511 //printf("TimeBar::draw_range %f %d %d\n", edl_length, x1, x2);
 512                 draw_3segmenth(0, 0, x1, mwindow->theme->timebar_view_data);
 513                 draw_top_background(get_parent(), x1, 0, x2 - x1, get_h());
 514                 draw_3segmenth(x2, 0, get_w() - x2, mwindow->theme->timebar_view_data);
 515
 516                 set_color(BLACK);
 517                 draw_line(x1, 0, x1, get_h());
 518                 draw_line(x2, 0, x2, get_h());
 519
 520
 521                 EDL *edl = get_edl();
 522                 if( edl ) {
 523                         int64_t pixel = position_to_pixel(
 524                                 edl->local_session->get_selectionstart(1));
 525 // Draw insertion point position if this timebar belongs to a window which
 526 // has something other than the master EDL.
 527                         set_color(mwindow->theme->timebar_cursor_color);
 528                         draw_line(pixel, 0, pixel, get_h());
 529                 }
 530         }
 531         else
 532                 draw_top_background(get_parent(), 0, 0, get_w(), get_h());
 533 }
 534
 535 void TimeBar::select_label(double position)
 536 {
 537 }
 538
 539
 540
 541 int TimeBar::draw()
 542 {
 543         return 0;
 544 }
 545
 546 double TimeBar::get_edl_length()
 547 {
 548         edl_length = get_edl() ? get_edl()->tracks->total_length() : 0;
 549         int w1 = get_w()-1;
 550         time_per_pixel = !EQUIV(edl_length, 0) ? edl_length/w1 : w1;
 551         return edl_length;
 552 }
 553
 554 int TimeBar::get_preview_pixels(int &x1, int &x2)
 555 {
 556         x1 = 0;  x2 = get_w();
 557         get_edl_length();
 558         EDL *edl = get_edl();
 559         if( edl && !EQUIV(edl_length, 0) ) {
 560                 double preview_start = edl->local_session->preview_start;
 561                 double preview_end = edl->local_session->preview_end;
 562                 if( preview_end < 0 || preview_end > edl_length )
 563                         preview_end = edl_length;
 564                 if( preview_end >= preview_start ) {
 565                         x1 = (int)(preview_start / time_per_pixel);
 566                         x2 = (int)(preview_end / time_per_pixel);
 567                 }
 568         }
 569         return 0;
 570 }
 571
 572
 573 int TimeBar::test_preview(int buttonpress)
 574 {
 575         int result = 0;
 576
 577
 578         if( get_edl() && cursor_inside() && buttonpress >= 0 ) {
 579                 int x1, x2, x = get_relative_cursor_x();
 580                 get_preview_pixels(x1, x2);
 581 //printf("TimeBar::test_preview %d %d %d\n", x1, x2, x);
 582 // Inside left handle
 583                 if( x >= x1 - HANDLE_W && x < x1 + HANDLE_W &&
 584 // Ignore left handle if both handles are up against the left side
 585                     x2 > HANDLE_W ) {
 586                         if( buttonpress ) {
 587                                 current_operation = TIMEBAR_DRAG_LEFT;
 588                                 start_position = get_edl()->local_session->preview_start;
 589                                 start_cursor_x = x;
 590                         }
 591                         else if( get_cursor() != LEFT_CURSOR )
 592                                 set_cursor(LEFT_CURSOR, 0, 1);
 593                         result = 1;
 594                 }
 595 // Inside right handle
 596                 else if( x >= x2 - HANDLE_W && x < x2 + HANDLE_W &&
 597 // Ignore right handle if both handles are up against the right side
 598                     x1 < get_w() - HANDLE_W ) {
 599                         if( buttonpress ) {
 600                                 current_operation = TIMEBAR_DRAG_RIGHT;
 601                                 start_position = get_edl()->local_session->preview_end;
 602                                 if( start_position < 0 || start_position > edl_length )
 603                                         start_position = edl_length;
 604                                 start_cursor_x = x;
 605                         }
 606                         else if( get_cursor() != RIGHT_CURSOR )
 607                                 set_cursor(RIGHT_CURSOR, 0, 1);
 608                         result = 1;
 609                 }
 610 // Inside preview
 611                 else if( get_button_down() && get_buttonpress() == 3 &&
 612                     x >= x1 && x < x2 ) {
 613                         if( buttonpress ) {
 614                                 current_operation = TIMEBAR_DRAG_CENTER;
 615                                 starting_start_position = get_edl()->local_session->preview_start;
 616                                 starting_end_position = get_edl()->local_session->preview_end;
 617                                 if( starting_end_position < 0 || starting_end_position > edl_length )
 618                                         starting_end_position = edl_length;
 619                                 start_cursor_x = x;
 620                         }
 621                         if( get_cursor() != HSEPARATE_CURSOR )
 622                                 set_cursor(HSEPARATE_CURSOR, 0, 1);
 623                         result = 1;
 624                 }
 625         }
 626
 627         if( !result && get_cursor() != ARROW_CURSOR )
 628                 set_cursor(ARROW_CURSOR, 0, 1);
 629
 630
 631         return result;
 632 }
 633
 634 int TimeBar::move_preview(int &redraw)
 635 {
 636         int result = 0, x = get_relative_cursor_x();
 637         switch( current_operation ) {
 638         case TIMEBAR_DRAG_LEFT: {
 639                 get_edl()->local_session->preview_start =
 640                         start_position + time_per_pixel * (x - start_cursor_x);
 641                 double preview_end = get_edl()->local_session->preview_end;
 642                 if( preview_end < 0 || preview_end > edl_length )
 643                         preview_end = get_edl()->local_session->preview_end = edl_length;
 644                 CLAMP(get_edl()->local_session->preview_start, 0, preview_end);
 645                 result = 1;
 646                 break; }
 647         case TIMEBAR_DRAG_RIGHT: {
 648                 double preview_end = get_edl()->local_session->preview_end =
 649                         start_position + time_per_pixel * (x - start_cursor_x);
 650                 double preview_start = get_edl()->local_session->preview_start;
 651                 if( preview_end >= edl_length && !preview_start ) {
 652                         get_edl()->local_session->preview_end = -1;
 653                         if( preview_start > preview_end )
 654                                 preview_start = get_edl()->local_session->preview_start = preview_end;
 655                 }
 656                 else
 657                         CLAMP(get_edl()->local_session->preview_end, preview_start, edl_length);
 658                 result = 1;
 659                 break; }
 660         case TIMEBAR_DRAG_CENTER: {
 661                 double dt = time_per_pixel * (x - start_cursor_x);
 662                 get_edl()->local_session->preview_start = starting_start_position + dt;
 663                 get_edl()->local_session->preview_end = starting_end_position + dt;
 664                 if( get_edl()->local_session->preview_start < 0 ) {
 665                         get_edl()->local_session->preview_end -= get_edl()->local_session->preview_start;
 666                         get_edl()->local_session->preview_start = 0;
 667                 }
 668                 else
 669                 if( get_edl()->local_session->preview_end > edl_length ) {
 670                         get_edl()->local_session->preview_start -= get_edl()->local_session->preview_end - edl_length;
 671                         get_edl()->local_session->preview_end = edl_length;
 672                 }
 673                 result = 1;
 674                 break; }
 675         }
 676
 677 //printf("TimeBar::move_preview %d %d\n", __LINE__, current_operation);
 678
 679         if( result ) {
 680                 update_preview();
 681                 redraw = 1;
 682         }
 683 //printf("TimeBar::move_preview %d %d\n", __LINE__, current_operation);
 684
 685         return result;
 686 }
 687
 688 void TimeBar::update_preview()
 689 {
 690 }
 691
 692 int TimeBar::samplemovement()
 693 {
 694         return 0;
 695 }
 696
 697 void TimeBar::stop_playback()
 698 {
 699 }
 700
 701 int TimeBar::button_press_event()
 702 {
 703         int result = 0;
 704         if( is_event_win() && cursor_above() ) {
 705                 if( has_preview() && get_buttonpress() == 3 ) {
 706                         result = test_preview(1);
 707                 }
 708 // Change time format
 709                 else if( ctrl_down() ) {
 710                         if( get_buttonpress() == 1 )
 711                                 mwindow->next_time_format();
 712                         else
 713                         if( get_buttonpress() == 2 )
 714                                 mwindow->prev_time_format();
 715                         result = 1;
 716                 }
 717                 else if( get_buttonpress() == 1 ) {
 718                         stop_playback();
 719
 720 // Select region between two labels
 721                         if( !is_vwindow() && get_double_click() ) {
 722                                 int x = get_relative_cursor_x();
 723                                 double position = pixel_to_position(x);
 724 // Test labels
 725                                 select_region(position);
 726                         }
 727                         else {
 728
 729 // Reposition highlight cursor
 730                                 update_cursor();
 731                                 current_operation = TIMEBAR_DRAG;
 732                                 activate_timeline();
 733                         }
 734                         result = 1;
 735                 }
 736         }
 737         return result;
 738 }
 739
 740 void TimeBar::activate_timeline()
 741 {
 742         mwindow->gui->activate_timeline();
 743 }
 744
 745 int TimeBar::cursor_motion_event()
 746 {
 747         int result = 0;
 748         int redraw = 0;
 749
 750 //printf("TimeBar::cursor_motion_event %d %p %d\n", __LINE__, this, current_operation);
 751         switch( current_operation )
 752         {
 753                 case TIMEBAR_DRAG:
 754                 {
 755                         update_cursor();
 756                         handle_mwindow_drag();
 757                         result = 1;
 758 //printf("TimeBar::cursor_motion_event %d %d\n", __LINE__, current_operation);
 759                         break;
 760                 }
 761
 762
 763                 case TIMEBAR_DRAG_LEFT:
 764                 case TIMEBAR_DRAG_RIGHT:
 765                 case TIMEBAR_DRAG_CENTER:
 766                         if( has_preview() )
 767                                 result = move_preview(redraw);
 768                         break;
 769
 770                 default:
 771                         if( cursor_above() ) {
 772                                 highlighted = 1;
 773                                 redraw = 1;
 774                         }
 775
 776 //printf("TimeBar::cursor_motion_event 20\n");
 777                         if( has_preview() )
 778                                 result = test_preview(0);
 779 //printf("TimeBar::cursor_motion_event 30\n");
 780                         break;
 781         }
 782
 783
 784 //printf("TimeBar::cursor_motion_event %d %d\n", __LINE__, current_operation);
 785         if( redraw ) {
 786                 update(1);
 787         }
 788 //printf("TimeBar::cursor_motion_event %d %p %d\n", __LINE__, this, current_operation);
 789
 790         return result;
 791 }
 792
 793 int TimeBar::cursor_leave_event()
 794 {
 795         if( highlighted ) {
 796                 highlighted = 0;
 797                 update(1);
 798         }
 799         return 0;
 800 }
 801
 802 int TimeBar::button_release_event()
 803 {
 804 //printf("TimeBar::button_release_event %d %d\n", __LINE__, current_operation);
 805         int result = 0;
 806         int need_redraw = 0;
 807         switch( current_operation )
 808         {
 809                 case TIMEBAR_DRAG:
 810                         mwindow->gui->get_focused_pane()->canvas->stop_dragscroll();
 811                         current_operation = TIMEBAR_NONE;
 812                         need_redraw = 1;
 813                         result = 1;
 814                         break;
 815
 816                 default:
 817                         if( current_operation != TIMEBAR_NONE ) {
 818                                 current_operation = TIMEBAR_NONE;
 819                                 result = 1;
 820                         }
 821                         break;
 822         }
 823
 824         if( (!cursor_above() && highlighted) || need_redraw ) {
 825                 highlighted = 0;
 826                 update(1);
 827         }
 828
 829         return result;
 830 }
 831
 832 // Update the selection cursor during a dragging operation
 833 void TimeBar::update_cursor()
 834 {
 835 }
 836
 837 void TimeBar::handle_mwindow_drag()
 838 {
 839 }
 840
 841 int TimeBar::select_region(double position)
 842 {
 843         Label *start = 0, *end = 0, *current;
 844         for( current = get_edl()->labels->first; current; current = NEXT ) {
 845                 if( current->position > position ) {
 846                         end = current;
 847                         break;
 848                 }
 849         }
 850
 851         for( current = get_edl()->labels->last ; current; current = PREVIOUS ) {
 852                 if( current->position <= position ) {
 853                         start = current;
 854                         break;
 855                 }
 856         }
 857
 858 // Select region
 859         if( end != start ) {
 860                 if( !start )
 861                         get_edl()->local_session->set_selectionstart(0);
 862                 else
 863                         get_edl()->local_session->set_selectionstart(start->position);
 864
 865                 if( !end )
 866                         get_edl()->local_session->set_selectionend(get_edl()->tracks->total_length());
 867                 else
 868                         get_edl()->local_session->set_selectionend(end->position);
 869         }
 870         else
 871         if( end || start ) {
 872                 get_edl()->local_session->set_selectionstart(start->position);
 873                 get_edl()->local_session->set_selectionend(start->position);
 874         }
 875
 876 // Que the CWindow
 877         mwindow->cwindow->gui->lock_window("TimeBar::select_region");
 878         mwindow->cwindow->update(1, 0, 0);
 879         mwindow->cwindow->gui->unlock_window();
 880         mwindow->gui->lock_window("TimeBar::select_region");
 881         mwindow->gui->hide_cursor(0);
 882         mwindow->gui->draw_cursor(1);
 883         mwindow->gui->flash_canvas(0);
 884         mwindow->gui->activate_timeline();
 885         mwindow->gui->zoombar->update();
 886         mwindow->gui->unlock_window();
 887         update_highlights();
 888         return 0;
 889 }
 890
 891
 892
 893
 894 int TimeBar::delete_arrows()
 895 {
 896         return 0;
 897 }
 898
 899 double TimeBar::test_highlight()
 900 {
 901         return -1;
 902 }
 903
 904