cinelerra-5.1/cinelerra/trackscroll.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 "edl.h"
  23 #include "edlsession.h"
  24 #include "localsession.h"
  25 #include "maincursor.h"
  26 #include "mwindow.h"
  27 #include "mwindowgui.h"
  28 #include "patchbay.h"
  29 #include "mainsession.h"
  30 #include "theme.h"
  31 #include "timelinepane.h"
  32 #include "trackcanvas.h"
  33 #include "tracks.h"
  34 #include "trackscroll.h"
  35
  36 TrackScroll::TrackScroll(MWindow *mwindow,
  37         MWindowGUI *gui,
  38         int x,
  39         int y,
  40         int h)
  41  : BC_ScrollBar(x,
  42         y,
  43         SCROLL_VERT,
  44         h,
  45         0,
  46         0,
  47         0)
  48 {
  49         this->mwindow = mwindow;
  50         this->gui = gui;
  51         this->pane = 0;
  52         old_position = 0;
  53 }
  54
  55 TrackScroll::TrackScroll(MWindow *mwindow,
  56         TimelinePane *pane,
  57         int x,
  58         int y,
  59         int h)
  60  : BC_ScrollBar(x,
  61         y,
  62         SCROLL_VERT,
  63         h,
  64         0,
  65         0,
  66         0)
  67 {
  68         this->mwindow = mwindow;
  69         this->gui = mwindow->gui;
  70         this->pane = pane;
  71         old_position = 0;
  72 }
  73
  74 TrackScroll::~TrackScroll()
  75 {
  76 }
  77
  78 long TrackScroll::get_distance()
  79 {
  80         return get_value() - old_position;
  81 }
  82
  83 int TrackScroll::update()
  84 {
  85         return 0;
  86 }
  87
  88 int TrackScroll::resize_event()
  89 {
  90         reposition_window(mwindow->theme->mvscroll_x,
  91                 mwindow->theme->mvscroll_y,
  92                 mwindow->theme->mvscroll_h);
  93         update();
  94         return 0;
  95 }
  96
  97 int TrackScroll::resize_event(int x, int y, int h)
  98 {
  99         reposition_window(x,
 100                 y,
 101                 h);
 102         update();
 103         return 0;
 104 }
 105
 106 int TrackScroll::flip_vertical(int top, int bottom)
 107 {
 108         return 0;
 109 }
 110
 111 void TrackScroll::set_position()
 112 {
 113         int64_t max_pos = mwindow->edl->get_tracks_height(mwindow->theme) - pane->view_h;
 114         if( max_pos < 0 ) max_pos = 0;
 115         if( mwindow->edl->local_session->track_start[pane->number] > max_pos )
 116                 mwindow->edl->local_session->track_start[pane->number] = max_pos;
 117         update_length(
 118                 mwindow->edl->get_tracks_height(mwindow->theme),
 119                 mwindow->edl->local_session->track_start[pane->number],
 120                 pane->view_h,
 121                 0);
 122 }
 123
 124 int TrackScroll::handle_event()
 125 {
 126         int64_t distance = get_value() -
 127                 mwindow->edl->local_session->track_start[pane->number];
 128         mwindow->trackmovement(distance, pane->number);
 129 //      mwindow->edl->local_session->track_start[pane->number] = get_value();
 130 //      if(pane->number == TOP_RIGHT_PANE)
 131 //              mwindow->edl->local_session->track_start[TOP_LEFT_PANE] =
 132 //                      mwindow->edl->local_session->track_start[pane->number];
 133 //      else
 134 //      if(pane->number == BOTTOM_RIGHT_PANE)
 135 //              mwindow->edl->local_session->track_start[BOTTOM_LEFT_PANE] =
 136 //                      mwindow->edl->local_session->track_start[pane->number];
 137 //
 138 //      mwindow->edl->tracks->update_y_pixels(mwindow->theme);
 139 //      mwindow->gui->draw_canvas(0, 0);
 140 //      mwindow->gui->draw_cursor(1);
 141 //      mwindow->gui->update_patchbay();
 142 //      mwindow->gui->flash_canvas(1);
 143 // Scrollbar must be active to trap button release events
 144 //      mwindow->gui->canvas->activate();
 145         old_position = get_value();
 146         return 1;
 147 }