gtk2_ardour/strip_silence_dialog.cc

   1 /*
   2     Copyright (C) 2009 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 <gtkmm/table.h>
  21 #include <gtkmm/label.h>
  22 #include <gtkmm/stock.h>
  23 #include "ardour/audioregion.h"
  24 #include "ardour/audiosource.h"
  25
  26 #include "ardour/dB.h"
  27 #include "ardour_ui.h"
  28 #include "gui_thread.h"
  29 #include "strip_silence_dialog.h"
  30 #include "canvas_impl.h"
  31 #include "waveview.h"
  32 #include "simplerect.h"
  33 #include "rgb_macros.h"
  34 #include "i18n.h"
  35
  36 using namespace ARDOUR;
  37
  38 /** Construct Strip silence dialog box */
  39 StripSilenceDialog::StripSilenceDialog (std::list<boost::shared_ptr<ARDOUR::AudioRegion> > const & regions)
  40         : ArdourDialog (_("Strip Silence")), _wave_width (640), _wave_height (64)
  41 {
  42         for (std::list<boost::shared_ptr<ARDOUR::AudioRegion> >::const_iterator i = regions.begin(); i != regions.end(); ++i) {
  43
  44                 Wave w;
  45                 w.region = *i;
  46                 w.view = 0;
  47                 w.samples_per_unit = 1;
  48                 _waves.push_back (w);
  49
  50         }
  51
  52         Gtk::HBox* hbox = Gtk::manage (new Gtk::HBox);
  53         hbox->set_spacing (16);
  54
  55         Gtk::Table* table = Gtk::manage (new Gtk::Table (4, 3));
  56         table->set_spacings (4);
  57
  58         Gtk::Label* l = Gtk::manage (new Gtk::Label (_("Threshold:")));
  59         l->set_alignment (1, 0.5);
  60         table->attach (*l, 0, 1, 0, 1, Gtk::FILL, Gtk::FILL);
  61         _threshold.set_digits (1);
  62         _threshold.set_increments (1, 10);
  63         _threshold.set_range (-120, 0);
  64         _threshold.set_value (-60);
  65         table->attach (_threshold, 1, 2, 0, 1, Gtk::FILL, Gtk::FILL);
  66         l = Gtk::manage (new Gtk::Label (_("dBFS")));
  67         l->set_alignment (0, 0.5);
  68         table->attach (*l, 2, 3, 0, 1, Gtk::FILL, Gtk::FILL);
  69
  70         l = Gtk::manage (new Gtk::Label (_("Minimum length:")));
  71         l->set_alignment (1, 0.5);
  72         table->attach (*l, 0, 1, 1, 2, Gtk::FILL, Gtk::FILL);
  73         _minimum_length.set_digits (0);
  74         _minimum_length.set_increments (1, 10);
  75         _minimum_length.set_range (0, 65536);
  76         _minimum_length.set_value (256);
  77         table->attach (_minimum_length, 1, 2, 1, 2, Gtk::FILL, Gtk::FILL);
  78         l = Gtk::manage (new Gtk::Label (_("samples")));
  79         table->attach (*l, 2, 3, 1, 2, Gtk::FILL, Gtk::FILL);
  80
  81         l = Gtk::manage (new Gtk::Label (_("Fade length:")));
  82         l->set_alignment (1, 0.5);
  83         table->attach (*l, 0, 1, 2, 3, Gtk::FILL, Gtk::FILL);
  84         _fade_length.set_digits (0);
  85         _fade_length.set_increments (1, 10);
  86         _fade_length.set_range (0, 1024);
  87         _fade_length.set_value (64);
  88         table->attach (_fade_length, 1, 2, 2, 3, Gtk::FILL, Gtk::FILL);
  89         l = Gtk::manage (new Gtk::Label (_("samples")));
  90         table->attach (*l, 2, 3, 2, 3, Gtk::FILL, Gtk::FILL);
  91
  92         hbox->pack_start (*table, false, false);
  93
  94         Gtk::VBox* v = Gtk::manage (new Gtk::VBox);
  95         Gtk::Button* b = Gtk::manage (new Gtk::Button (_("Update display")));
  96         b->signal_clicked().connect (sigc::mem_fun (*this, &StripSilenceDialog::update_silence_rects));
  97         v->pack_start (*b, false, false);
  98         hbox->pack_start (*v, false, false);
  99
 100         get_vbox()->add (*hbox);
 101
 102         add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
 103         add_button (Gtk::Stock::APPLY, Gtk::RESPONSE_OK);
 104
 105         _canvas = new ArdourCanvas::CanvasAA ();
 106         _canvas->signal_size_allocate().connect (sigc::mem_fun (*this, &StripSilenceDialog::canvas_allocation));
 107         _canvas->set_size_request (_wave_width, _wave_height * _waves.size ());
 108
 109         get_vbox()->pack_start (*_canvas, true, true);
 110
 111         show_all ();
 112
 113         create_waves ();
 114         update_silence_rects ();
 115 }
 116
 117
 118 StripSilenceDialog::~StripSilenceDialog ()
 119 {
 120         for (std::list<Wave>::iterator i = _waves.begin(); i != _waves.end(); ++i) {
 121                 delete i->view;
 122                 for (std::list<ArdourCanvas::SimpleRect*>::iterator j = i->silence_rects.begin(); j != i->silence_rects.end(); ++j) {
 123                         delete *j;
 124                 }
 125         }
 126
 127         delete _canvas;
 128 }
 129
 130 void
 131 StripSilenceDialog::create_waves ()
 132 {
 133         int n = 0;
 134
 135         for (std::list<Wave>::iterator i = _waves.begin(); i != _waves.end(); ++i) {
 136                 if (i->region->audio_source(0)->peaks_ready (boost::bind (&StripSilenceDialog::peaks_ready, this), _peaks_ready_connection, gui_context())) {
 137                         i->view = new WaveView (*(_canvas->root()));
 138                         i->view->property_data_src() = static_cast<gpointer>(i->region.get());
 139                         i->view->property_cache() = WaveView::create_cache ();
 140                         i->view->property_cache_updater() = true;
 141                         i->view->property_channel() = 0;
 142                         i->view->property_length_function() = (void *) region_length_from_c;
 143                         i->view->property_sourcefile_length_function() = (void *) sourcefile_length_from_c;
 144                         i->view->property_peak_function() = (void *) region_read_peaks_from_c;
 145                         i->view->property_x() = 0;
 146                         i->view->property_y() = n * _wave_height;
 147                         i->view->property_height() = _wave_height;
 148                         i->view->property_samples_per_unit() = i->samples_per_unit;
 149                         i->view->property_region_start() = i->region->start();
 150                         i->view->property_wave_color() = ARDOUR_UI::config()->canvasvar_WaveForm.get();
 151                         i->view->property_fill_color() = ARDOUR_UI::config()->canvasvar_WaveFormFill.get();
 152                 }
 153
 154                 ++n;
 155         }
 156 }
 157
 158 void
 159 StripSilenceDialog::peaks_ready ()
 160 {
 161         _peaks_ready_connection.disconnect ();
 162         create_waves ();
 163 }
 164
 165 void
 166 StripSilenceDialog::canvas_allocation (Gtk::Allocation& alloc)
 167 {
 168         _canvas->set_scroll_region (0.0, 0.0, alloc.get_width(), alloc.get_height());
 169         _wave_width = alloc.get_width ();
 170
 171         for (std::list<Wave>::iterator i = _waves.begin(); i != _waves.end(); ++i) {
 172                 i->samples_per_unit = ((double) i->region->length() / _wave_width);
 173         }
 174 }
 175
 176 void
 177 StripSilenceDialog::update_silence_rects ()
 178 {
 179         int n = 0;
 180
 181         for (std::list<Wave>::iterator i = _waves.begin(); i != _waves.end(); ++i) {
 182                 for (std::list<ArdourCanvas::SimpleRect*>::iterator j = i->silence_rects.begin(); j != i->silence_rects.end(); ++j) {
 183                         delete *j;
 184                 }
 185
 186                 i->silence_rects.clear ();
 187
 188                 std::list<std::pair<frameoffset_t, framecnt_t> > const silence =
 189                         i->region->find_silence (dB_to_coefficient (threshold ()), minimum_length ());
 190
 191                 for (std::list<std::pair<frameoffset_t, framecnt_t> >::const_iterator j = silence.begin(); j != silence.end(); ++j) {
 192
 193                         ArdourCanvas::SimpleRect* r = new ArdourCanvas::SimpleRect (*(_canvas->root()));
 194                         r->property_x1() = j->first / i->samples_per_unit;
 195                         r->property_x2() = j->second / i->samples_per_unit;
 196                         r->property_y1() = n * _wave_height;
 197                         r->property_y2() = (n + 1) * _wave_height;
 198                         r->property_outline_pixels() = 0;
 199                         r->property_fill_color_rgba() = RGBA_TO_UINT (128, 128, 128, 128);
 200                         i->silence_rects.push_back (r);
 201
 202                 }
 203
 204                 ++n;
 205         }
 206 }