gtk2_ardour/audio_region_editor.cc

   1 /*
   2     Copyright (C) 2001 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 <pbd/memento_command.h>
  21
  22 #include <ardour/audioregion.h>
  23 #include <ardour/playlist.h>
  24 #include <ardour/utils.h>
  25 #include <ardour/dB.h>
  26 #include <gtkmm2ext/utils.h>
  27 #include <gtkmm2ext/stop_signal.h>
  28 #include <cmath>
  29
  30 #include "audio_region_editor.h"
  31 #include "audio_region_view.h"
  32 #include "ardour_ui.h"
  33 #include "utils.h"
  34 #include "gui_thread.h"
  35
  36 #include "i18n.h"
  37
  38 using namespace ARDOUR;
  39 using namespace PBD;
  40 using namespace sigc;
  41 using namespace std;
  42 using namespace Gtkmm2ext;
  43
  44 AudioRegionEditor::AudioRegionEditor (Session& s, boost::shared_ptr<AudioRegion> r, AudioRegionView& rv)
  45         : RegionEditor (s),
  46           _region (r),
  47           _region_view (rv),
  48           name_label (_("Name:")),
  49           audition_button (_("Audition")),
  50           time_table (5, 2),
  51           position_clock (X_("regionposition"), true, X_("AudioRegionEditorClock"), true),
  52           end_clock (X_("regionend"), true, X_("AudioRegionEditorClock"), true),
  53           length_clock (X_("regionlength"), true, X_("AudioRegionEditorClock"), true, true),
  54           /* XXX cannot edit sync point or start yet */
  55           sync_offset_clock (X_("regionsyncoffset"), true, X_("AudioRegionEditorClock"), false),
  56           start_clock (X_("regionstart"), true, X_("AudioRegionEditorClock"), false),
  57           gain_adjustment(accurate_coefficient_to_dB(_region->scale_amplitude()), -40.0, +40.0, 0.1, 1.0, 0)
  58 {
  59         position_clock.set_session (&_session);
  60         end_clock.set_session (&_session);
  61         length_clock.set_session (&_session);
  62         sync_offset_clock.set_session (&_session);
  63         start_clock.set_session (&_session);
  64
  65         name_entry.set_name ("AudioRegionEditorEntry");
  66         name_label.set_name ("AudioRegionEditorLabel");
  67
  68         name_hbox.set_spacing (5);
  69         name_hbox.pack_start (name_label, false, false);
  70         name_hbox.pack_start (name_entry, false, false);
  71
  72         ARDOUR_UI::instance()->tooltips().set_tip (audition_button, _("audition this region"));
  73
  74         audition_button.unset_flags (Gtk::CAN_FOCUS);
  75
  76         audition_button.set_events (audition_button.get_events() & ~(Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK));
  77
  78         top_row_button_hbox.set_border_width (5);
  79         top_row_button_hbox.set_spacing (5);
  80         top_row_button_hbox.set_homogeneous (false);
  81         top_row_button_hbox.pack_end (audition_button, false, false);
  82
  83         top_row_hbox.pack_start (name_hbox, true, true);
  84         top_row_hbox.pack_end (top_row_button_hbox, true, true);
  85
  86         position_label.set_name ("AudioRegionEditorLabel");
  87         position_label.set_text (_("Position:"));
  88         end_label.set_name ("AudioRegionEditorLabel");
  89         end_label.set_text (_("End:"));
  90         length_label.set_name ("AudioRegionEditorLabel");
  91         length_label.set_text (_("Length:"));
  92         sync_label.set_name ("AudioRegionEditorLabel");
  93         sync_label.set_text (_("Sync Point:"));
  94         start_label.set_name ("AudioRegionEditorLabel");
  95         start_label.set_text (_("File Start:"));
  96
  97         time_table.set_col_spacings (2);
  98         time_table.set_row_spacings (5);
  99         time_table.set_border_width (5);
 100
 101         position_alignment.set (1.0, 0.5);
 102         end_alignment.set (1.0, 0.5);
 103         length_alignment.set (1.0, 0.5);
 104         sync_alignment.set (1.0, 0.5);
 105         start_alignment.set (1.0, 0.5);
 106
 107         position_alignment.add (position_label);
 108         end_alignment.add (end_label);
 109         length_alignment.add (length_label);
 110         sync_alignment.add (sync_label);
 111         start_alignment.add (start_label);
 112
 113         time_table.attach (position_alignment, 0, 1, 0, 1, Gtk::FILL, Gtk::FILL);
 114         time_table.attach (position_clock, 1, 2, 0, 1, Gtk::FILL, Gtk::FILL);
 115
 116         time_table.attach (end_alignment, 0, 1, 1, 2, Gtk::FILL, Gtk::FILL);
 117         time_table.attach (end_clock, 1, 2, 1, 2, Gtk::FILL, Gtk::FILL);
 118
 119         time_table.attach (length_alignment, 0, 1, 2, 3, Gtk::FILL, Gtk::FILL);
 120         time_table.attach (length_clock, 1, 2, 2, 3, Gtk::FILL, Gtk::FILL);
 121
 122         time_table.attach (sync_alignment, 0, 1, 3, 4, Gtk::FILL, Gtk::FILL);
 123         time_table.attach (sync_offset_clock, 1, 2, 3, 4, Gtk::FILL, Gtk::FILL);
 124
 125         time_table.attach (start_alignment, 0, 1, 4, 5, Gtk::FILL, Gtk::FILL);
 126         time_table.attach (start_clock, 1, 2, 4, 5, Gtk::FILL, Gtk::FILL);
 127
 128         gain_label.set_name ("AudioRegionEditorLabel");
 129         gain_label.set_text (_("Scale amplitude:"));
 130         gain_label.set_alignment (1, 0.5);
 131         gain_entry.configure (gain_adjustment, 0.0, 1);
 132         time_table.attach (gain_label, 0, 1, 6, 7, Gtk::FILL, Gtk::FILL);
 133         time_table.attach (gain_entry, 1, 2, 6, 7, Gtk::FILL, Gtk::FILL);
 134
 135         lower_hbox.pack_start (time_table, true, true);
 136         lower_hbox.pack_start (sep1, false, false);
 137         lower_hbox.pack_start (sep2, false, false);
 138
 139         get_vbox()->pack_start (top_row_hbox, true, true);
 140         get_vbox()->pack_start (sep3, false, false);
 141         get_vbox()->pack_start (lower_hbox, true, true);
 142
 143         set_name ("AudioRegionEditorWindow");
 144         add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK);
 145
 146         signal_delete_event().connect (bind (sigc::ptr_fun (just_hide_it), static_cast<Window *> (this)));
 147
 148         set_title (string_compose (_("Region %1"), _region->name()));
 149
 150         show_all();
 151
 152         name_changed ();
 153         bounds_changed (Change (StartChanged|LengthChanged|PositionChanged|StartChanged|Region::SyncOffsetChanged));
 154         gain_changed ();
 155
 156         _region->StateChanged.connect (mem_fun(*this, &AudioRegionEditor::region_changed));
 157
 158         spin_arrow_grab = false;
 159
 160         connect_editor_events ();
 161 }
 162
 163 AudioRegionEditor::~AudioRegionEditor ()
 164 {
 165 }
 166
 167 void
 168 AudioRegionEditor::region_changed (Change what_changed)
 169 {
 170         if (what_changed & NameChanged) {
 171                 name_changed ();
 172         }
 173
 174         if (what_changed & Change (BoundsChanged|StartChanged|Region::SyncOffsetChanged)) {
 175                 bounds_changed (what_changed);
 176         }
 177
 178         if (what_changed & AudioRegion::ScaleAmplitudeChanged) {
 179                 gain_changed ();
 180         }
 181 }
 182
 183 gint
 184 AudioRegionEditor::bpressed (GdkEventButton* ev, Gtk::SpinButton* but, void (AudioRegionEditor::*pmf)())
 185 {
 186         switch (ev->button) {
 187         case 1:
 188         case 2:
 189         case 3:
 190                 if (ev->type == GDK_BUTTON_PRESS) { /* no double clicks here */
 191                         if (!spin_arrow_grab) {
 192                                 // GTK2FIX probably nuke the region editor
 193                                 // if ((ev->window == but->gobj()->panel)) {
 194                                 // spin_arrow_grab = true;
 195                                 // (this->*pmf)();
 196                                 // }
 197                         }
 198                 }
 199                 break;
 200         default:
 201                 break;
 202         }
 203         return FALSE;
 204 }
 205
 206 gint
 207 AudioRegionEditor::breleased (GdkEventButton* ev, Gtk::SpinButton* but, void (AudioRegionEditor::*pmf)())
 208 {
 209         if (spin_arrow_grab) {
 210                 (this->*pmf)();
 211                 spin_arrow_grab = false;
 212         }
 213         return FALSE;
 214 }
 215
 216 void
 217 AudioRegionEditor::connect_editor_events ()
 218 {
 219         name_entry.signal_changed().connect (mem_fun(*this, &AudioRegionEditor::name_entry_changed));
 220
 221         position_clock.ValueChanged.connect (mem_fun(*this, &AudioRegionEditor::position_clock_changed));
 222         end_clock.ValueChanged.connect (mem_fun(*this, &AudioRegionEditor::end_clock_changed));
 223         length_clock.ValueChanged.connect (mem_fun(*this, &AudioRegionEditor::length_clock_changed));
 224         gain_adjustment.signal_value_changed().connect (mem_fun (*this, &AudioRegionEditor::gain_adjustment_changed));
 225
 226         audition_button.signal_toggled().connect (mem_fun(*this, &AudioRegionEditor::audition_button_toggled));
 227         _session.AuditionActive.connect (mem_fun(*this, &AudioRegionEditor::audition_state_changed));
 228 }
 229
 230 void
 231 AudioRegionEditor::position_clock_changed ()
 232 {
 233         _session.begin_reversible_command (_("change region start position"));
 234
 235         boost::shared_ptr<Playlist> pl = _region->playlist();
 236
 237         if (pl) {
 238                 XMLNode &before = pl->get_state();
 239                 _region->set_position (position_clock.current_time(), this);
 240                 XMLNode &after = pl->get_state();
 241                 _session.add_command(new MementoCommand<Playlist>(*pl, &before, &after));
 242         }
 243
 244         _session.commit_reversible_command ();
 245 }
 246
 247 void
 248 AudioRegionEditor::end_clock_changed ()
 249 {
 250         _session.begin_reversible_command (_("change region end position"));
 251
 252         boost::shared_ptr<Playlist> pl = _region->playlist();
 253
 254         if (pl) {
 255                 XMLNode &before = pl->get_state();
 256                 _region->trim_end (end_clock.current_time(), this);
 257                 XMLNode &after = pl->get_state();
 258                 _session.add_command(new MementoCommand<Playlist>(*pl, &before, &after));
 259         }
 260
 261         _session.commit_reversible_command ();
 262
 263         end_clock.set (_region->position() + _region->length()-1, true);
 264 }
 265
 266 void
 267 AudioRegionEditor::length_clock_changed ()
 268 {
 269         nframes_t frames = length_clock.current_time();
 270
 271         _session.begin_reversible_command (_("change region length"));
 272
 273         boost::shared_ptr<Playlist> pl = _region->playlist();
 274
 275         if (pl) {
 276                 XMLNode &before = pl->get_state();
 277                 _region->trim_end (_region->position() + frames -1, this);
 278                 XMLNode &after = pl->get_state();
 279                 _session.add_command(new MementoCommand<Playlist>(*pl, &before, &after));
 280         }
 281
 282         _session.commit_reversible_command ();
 283
 284         length_clock.set (_region->length());
 285 }
 286
 287 void
 288 AudioRegionEditor::gain_changed ()
 289 {
 290         float const region_gain_dB = accurate_coefficient_to_dB (_region->scale_amplitude());
 291         if (region_gain_dB != gain_adjustment.get_value()) {
 292                 gain_adjustment.set_value(region_gain_dB);
 293         }
 294 }
 295
 296 void
 297 AudioRegionEditor::gain_adjustment_changed ()
 298 {
 299         float const gain = dB_to_coefficient (gain_adjustment.get_value());
 300         if (_region->scale_amplitude() != gain) {
 301                 _region->set_scale_amplitude (gain);
 302         }
 303 }
 304
 305 void
 306 AudioRegionEditor::audition_button_toggled ()
 307 {
 308         if (audition_button.get_active()) {
 309                 _session.audition_region (_region);
 310         } else {
 311                 _session.cancel_audition ();
 312         }
 313 }
 314
 315 void
 316 AudioRegionEditor::name_changed ()
 317 {
 318         if (name_entry.get_text() != _region->name()) {
 319                 name_entry.set_text (_region->name());
 320         }
 321 }
 322
 323 void
 324 AudioRegionEditor::bounds_changed (Change what_changed)
 325 {
 326         if ((what_changed & Change (PositionChanged|LengthChanged)) == Change (PositionChanged|LengthChanged)) {
 327                 position_clock.set (_region->position(), true);
 328                 end_clock.set (_region->position() + _region->length() -1, true);
 329                 length_clock.set (_region->length(), true);
 330         } else if (what_changed & Change (PositionChanged)) {
 331                 position_clock.set (_region->position(), true);
 332                 end_clock.set (_region->position() + _region->length() -1, true);
 333         } else if (what_changed & Change (LengthChanged)) {
 334                 end_clock.set (_region->position() + _region->length() -1, true);
 335                 length_clock.set (_region->length(), true);
 336         }
 337
 338         if (what_changed & Region::SyncOffsetChanged) {
 339                 sync_offset_clock.set (_region->sync_position(), true);
 340         }
 341
 342         if (what_changed & StartChanged) {
 343                 start_clock.set (_region->start(), true);
 344         }
 345 }
 346
 347 void
 348 AudioRegionEditor::activation ()
 349 {
 350
 351 }
 352
 353 void
 354 AudioRegionEditor::name_entry_changed ()
 355 {
 356         if (name_entry.get_text() != _region->name()) {
 357                 _region->set_name (name_entry.get_text());
 358         }
 359 }
 360
 361 void
 362 AudioRegionEditor::audition_state_changed (bool yn)
 363 {
 364         ENSURE_GUI_THREAD (bind (mem_fun(*this, &AudioRegionEditor::audition_state_changed), yn));
 365
 366         if (!yn) {
 367                 audition_button.set_active (false);
 368         }
 369 }
 370