gtk2_ardour/tape_region_view.cc

   1 /*
   2     Copyright (C) 2006 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #include <cmath>
  21 #include <algorithm>
  22
  23 #include <gtkmm.h>
  24
  25 #include <gtkmm2ext/gtk_ui.h>
  26
  27 #include <ardour/playlist.h>
  28 #include <ardour/audioregion.h>
  29 #include <ardour/audiosource.h>
  30 #include <ardour/audio_diskstream.h>
  31
  32 #include "tape_region_view.h"
  33 #include "audio_time_axis.h"
  34 #include "gui_thread.h"
  35
  36 #include "i18n.h"
  37
  38 using namespace sigc;
  39 using namespace ARDOUR;
  40 using namespace PBD;
  41 using namespace Editing;
  42 using namespace ArdourCanvas;
  43
  44 const TimeAxisViewItem::Visibility TapeAudioRegionView::default_tape_visibility
  45         = TimeAxisViewItem::Visibility (
  46                 TimeAxisViewItem::ShowNameHighlight |
  47                 TimeAxisViewItem::ShowNameText |
  48                 TimeAxisViewItem::ShowFrame |
  49                 TimeAxisViewItem::HideFrameRight |
  50                 TimeAxisViewItem::FullWidthNameHighlight);
  51
  52 TapeAudioRegionView::TapeAudioRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv,
  53                                           boost::shared_ptr<AudioRegion> r,
  54                                           double spu,
  55                                           Gdk::Color& basic_color)
  56
  57         : AudioRegionView (parent, tv, r, spu, basic_color, false,
  58                            TimeAxisViewItem::Visibility ((r->position() != 0) ? default_tape_visibility :
  59                                                          TimeAxisViewItem::Visibility (default_tape_visibility|TimeAxisViewItem::HideFrameLeft)))
  60 {
  61 }
  62
  63 void
  64 TapeAudioRegionView::init (Gdk::Color& basic_color, bool wfw)
  65 {
  66         /* never wait for data: always just create the waves, connect once and then
  67            we'll update whenever we need to.
  68         */
  69
  70         AudioRegionView::init(basic_color, false);
  71
  72         /* every time the wave data changes and peaks are ready, redraw */
  73
  74         for (uint32_t n = 0; n < audio_region()->n_channels(); ++n) {
  75                 audio_region()->source(n)->PeaksReady.connect (bind (mem_fun(*this, &TapeAudioRegionView::update), n));
  76         }
  77
  78 }
  79
  80 TapeAudioRegionView::~TapeAudioRegionView()
  81 {
  82 }
  83
  84 void
  85 TapeAudioRegionView::update (uint32_t n)
  86 {
  87         /* check that all waves are build and ready */
  88
  89         if (!tmp_waves.empty()) {
  90                 return;
  91         }
  92
  93         ENSURE_GUI_THREAD (bind (mem_fun(*this, &TapeAudioRegionView::update), n));
  94
  95         /* this triggers a cache invalidation and redraw in the waveview */
  96
  97         waves[n]->property_data_src() = _region.get();
  98 }
  99
 100 void
 101 TapeAudioRegionView::set_frame_color ()
 102 {
 103         fill_opacity = 255;
 104         AudioRegionView::set_frame_color ();
 105 }