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