cinelerra-5.1/cinelerra/samplescroll.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 "edl.h"
  24 #include "edlsession.h"
  25 #include "samplescroll.h"
  26 #include "localsession.h"
  27 #include "maincursor.h"
  28 #include "mwindow.h"
  29 #include "mwindowgui.h"
  30 #include "patchbay.h"
  31 #include "mainsession.h"
  32 #include "mtimebar.h"
  33 #include "theme.h"
  34 #include "trackcanvas.h"
  35 #include "tracks.h"
  36
  37 SampleScroll::SampleScroll(MWindow *mwindow,
  38         MWindowGUI *gui,
  39         int x,
  40         int y,
  41         int w)
  42  : BC_ScrollBar(x,
  43         y,
  44         SCROLL_HORIZ,
  45         w,
  46         0,
  47         0,
  48         0)
  49 {
  50         this->gui = gui;
  51         this->pane = 0;
  52         this->mwindow = mwindow;
  53         oldposition = 0;
  54 }
  55
  56 SampleScroll::SampleScroll(MWindow *mwindow,
  57         TimelinePane *pane,
  58         int x,
  59         int y,
  60         int w)
  61  : BC_ScrollBar(x,
  62         y,
  63         SCROLL_HORIZ,
  64         w,
  65         0,
  66         0,
  67         0)
  68 {
  69         this->gui = mwindow->gui;
  70         this->pane = pane;
  71         this->mwindow = mwindow;
  72         oldposition = 0;
  73 }
  74
  75 SampleScroll::~SampleScroll()
  76 {
  77 }
  78
  79 int SampleScroll::flip_vertical()
  80 {
  81         return 0;
  82 }
  83
  84 int SampleScroll::in_use()
  85 {
  86         return in_use();
  87 }
  88
  89
  90 int SampleScroll::resize_event()
  91 {
  92         reposition_window(mwindow->theme->mhscroll_x,
  93                 mwindow->theme->mhscroll_y,
  94                 mwindow->theme->mhscroll_w);
  95         return 0;
  96 }
  97
  98 int SampleScroll::resize_event(int x, int y, int w)
  99 {
 100         reposition_window(x,
 101                 y,
 102                 w);
 103         return 0;
 104 }
 105
 106 int SampleScroll::set_position()
 107 {
 108         if(!pane->canvas) return 0;
 109         long length = Units::round(mwindow->edl->tracks->total_length() *
 110                 mwindow->edl->session->sample_rate /
 111                 mwindow->edl->local_session->zoom_sample);
 112         long position = mwindow->edl->local_session->view_start[pane->number];
 113         long handle_size = pane->view_w;
 114
 115         update_length(length,
 116                         position,
 117                         handle_size,
 118                         0);
 119
 120         oldposition = position;
 121         return 0;
 122 }
 123
 124 int SampleScroll::handle_event()
 125 {
 126 //printf("SampleScroll::handle_event %d %d\n", __LINE__, get_window_lock());
 127         mwindow->edl->local_session->view_start[pane->number] = get_value();
 128         if(pane->number == TOP_LEFT_PANE ||
 129                 pane->number == BOTTOM_LEFT_PANE)
 130         {
 131                 mwindow->edl->local_session->view_start[TOP_LEFT_PANE] =
 132                         mwindow->edl->local_session->view_start[BOTTOM_LEFT_PANE] =
 133                         mwindow->edl->local_session->view_start[pane->number];
 134         }
 135         else
 136         {
 137                 mwindow->edl->local_session->view_start[TOP_RIGHT_PANE] =
 138                         mwindow->edl->local_session->view_start[BOTTOM_RIGHT_PANE] =
 139                         mwindow->edl->local_session->view_start[pane->number];
 140         }
 141
 142         mwindow->gui->draw_canvas(0, 1);
 143         mwindow->gui->draw_cursor(1);
 144         mwindow->gui->update_timebar(0);
 145         mwindow->gui->flash_canvas(0);
 146
 147 //      if(pane->patchbay) pane->patchbay->update();
 148
 149
 150 //printf("SampleScroll::handle_event %d %d\n", __LINE__, get_window_lock());
 151
 152         return 1;
 153 }