cinelerra-5.1/cinelerra/ctimebar.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
   5  * Copyright (C) 2003-2016 Cinelerra CV contributors
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  *
  21  */
  22
  23 #include "bcsignals.h"
  24 #include "ctimebar.h"
  25 #include "cwindow.h"
  26 #include "cwindowgui.h"
  27 #include "edl.h"
  28 #include "localsession.h"
  29 #include "maincursor.h"
  30 #include "mbuttons.h"
  31 #include "mwindow.h"
  32 #include "mwindowgui.h"
  33 #include "theme.h"
  34 #include "trackcanvas.inc"
  35
  36
  37 CTimeBar::CTimeBar(MWindow *mwindow, CWindowGUI *gui,
  38                 int x, int y, int w, int h)
  39  : TimeBar(mwindow, gui, x, y, w, h)
  40 {
  41         this->mwindow = mwindow;
  42         this->gui = gui;
  43 // *** CONTEXT_HELP ***
  44         context_help_set_keyword("Preview Region Usage");
  45 }
  46
  47 int CTimeBar::resize_event()
  48 {
  49         reposition_window(mwindow->theme->ctimebar_x,
  50                 mwindow->theme->ctimebar_y,
  51                 mwindow->theme->ctimebar_w,
  52                 mwindow->theme->ctimebar_h);
  53         update(0);
  54         return 1;
  55 }
  56
  57
  58 EDL* CTimeBar::get_edl()
  59 {
  60         return mwindow->edl;
  61 }
  62
  63 void CTimeBar::draw_time()
  64 {
  65         draw_range();
  66 }
  67
  68
  69 double CTimeBar::pixel_to_position(int pixel)
  70 {
  71         double start = 0, end = get_edl_length();
  72         EDL *edl = get_edl();
  73         if( edl ) {
  74                 double preview_start = edl->local_session->preview_start;
  75                 double preview_end = edl->local_session->preview_end;
  76                 if( preview_end >= 0 || preview_start > 0 )
  77                         start = preview_start;
  78                 if( preview_end >= 0 && preview_end < end )
  79                         end = preview_end;
  80         }
  81         if( start > end ) start = end;
  82         return start + (double)pixel * (end - start) / get_w();
  83 }
  84
  85
  86 void CTimeBar::update_cursor()
  87 {
  88         int rx = get_relative_cursor_x();
  89         double position = pixel_to_position(rx);
  90         mwindow->cwindow->update_position(position);
  91 }
  92
  93
  94
  95 void CTimeBar::select_label(double position)
  96 {
  97         gui->stop_transport("CTimeBar::select_label");
  98
  99         EDL *edl = mwindow->edl;
 100         position = edl->align_to_frame(position, 1);
 101
 102         if( shift_down() ) {
 103                 if( position > edl->local_session->get_selectionend(1) / 2 +
 104                         edl->local_session->get_selectionstart(1) / 2 ) {
 105
 106                         edl->local_session->set_selectionend(position);
 107                 }
 108                 else {
 109                         edl->local_session->set_selectionstart(position);
 110                 }
 111         }
 112         else {
 113                 edl->local_session->set_selectionstart(position);
 114                 edl->local_session->set_selectionend(position);
 115         }
 116
 117 // Que the CWindow
 118         unlock_window();
 119         mwindow->cwindow->update(1, 0, 0, 0, 1);
 120         mwindow->gui->lock_window();
 121         mwindow->gui->hide_cursor(0);
 122         mwindow->gui->draw_cursor(1);
 123         mwindow->gui->update(0, NORMAL_DRAW, 1, 0, 1, 1, 0);
 124         mwindow->gui->unlock_window();
 125         mwindow->update_plugin_guis();
 126         lock_window("CTimeBar::select_label");
 127 }
 128