cinelerra-5.1/cinelerra/vtimebar.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 "localsession.h"
  24 #include "mwindow.h"
  25 #include "theme.h"
  26 #include "vtimebar.h"
  27 #include "vwindow.h"
  28 #include "vwindowgui.h"
  29
  30
  31 VTimeBar::VTimeBar(MWindow *mwindow,
  32                 VWindowGUI *gui,
  33                 int x,
  34                 int y,
  35                 int w,
  36                 int h)
  37  : TimeBar(mwindow,
  38                 gui,
  39                 x,
  40                 y,
  41                 w,
  42                 h)
  43 {
  44         this->mwindow = mwindow;
  45         this->gui = gui;
  46 // *** CONTEXT_HELP ***
  47         context_help_set_keyword("Preview Region Usage");
  48 }
  49
  50 int VTimeBar::resize_event()
  51 {
  52         reposition_window(mwindow->theme->vtimebar_x,
  53                 mwindow->theme->vtimebar_y,
  54                 mwindow->theme->vtimebar_w,
  55                 mwindow->theme->vtimebar_h);
  56         update(0);
  57         return 1;
  58 }
  59
  60 EDL* VTimeBar::get_edl()
  61 {
  62         return gui->vwindow->get_edl();
  63 }
  64
  65 void VTimeBar::draw_time()
  66 {
  67         draw_range();
  68 }
  69
  70 void VTimeBar::select_label(double position)
  71 {
  72         EDL *edl = get_edl();
  73         if( edl ) {
  74                 gui->stop_transport();
  75                 position = mwindow->edl->align_to_frame(position, 1);
  76
  77                 if(shift_down())
  78                 {
  79                         if(position > edl->local_session->get_selectionend(1) / 2 +
  80                                 edl->local_session->get_selectionstart(1) / 2)
  81                         {
  82
  83                                 edl->local_session->set_selectionend(position);
  84                         }
  85                         else
  86                         {
  87                                 edl->local_session->set_selectionstart(position);
  88                         }
  89                 }
  90                 else
  91                 {
  92                         edl->local_session->set_selectionstart(position);
  93                         edl->local_session->set_selectionend(position);
  94                 }
  95
  96 // Que the CWindow
  97                 gui->vwindow->update_position();
  98                 update(1);
  99         }
 100 }
 101
 102 double VTimeBar::pixel_to_position(int pixel)
 103 {
 104         double start = 0, end = get_edl_length();
 105         EDL *edl = get_edl();
 106         if( edl ) {
 107                 double preview_start = edl->local_session->preview_start;
 108                 double preview_end = edl->local_session->preview_end;
 109                 if( preview_end >= 0 || preview_start > 0 )
 110                         start = preview_start;
 111                 if( preview_end >= 0 && preview_end < end )
 112                         end = preview_end;
 113         }
 114         if( start > end ) start = end;
 115         return start + (double)pixel * (end - start) / get_w();
 116 }
 117
 118
 119 void VTimeBar::update_cursor()
 120 {
 121         int rx = get_relative_cursor_x();
 122         double position = pixel_to_position(rx);
 123         gui->vwindow->update_position(position);
 124         update(1);
 125 }
 126
 127 double VTimeBar::test_highlight()
 128 {
 129         return gui->edit_panel->get_position();
 130 }
 131