gtk2_ardour/automation_region_view.cc

   1 /*
   2     Copyright (C) 2007 Paul Davis
   3     Author: David Robillard
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18 */
  19
  20 #include <utility>
  21
  22 #include "pbd/memento_command.h"
  23
  24 #include "ardour/automation_control.h"
  25 #include "ardour/event_type_map.h"
  26 #include "ardour/midi_automation_list_binder.h"
  27 #include "ardour/midi_region.h"
  28 #include "ardour/session.h"
  29
  30 #include "gtkmm2ext/keyboard.h"
  31
  32 #include "automation_region_view.h"
  33 #include "editing.h"
  34 #include "editor.h"
  35 #include "editor_drag.h"
  36 #include "gui_thread.h"
  37 #include "midi_automation_line.h"
  38 #include "public_editor.h"
  39 #include "ui_config.h"
  40
  41 #include "pbd/i18n.h"
  42
  43 AutomationRegionView::AutomationRegionView (ArdourCanvas::Container*                  parent,
  44                                             AutomationTimeAxisView&                   time_axis,
  45                                             boost::shared_ptr<ARDOUR::Region>         region,
  46                                             const Evoral::Parameter&                  param,
  47                                             boost::shared_ptr<ARDOUR::AutomationList> list,
  48                                             double                                    spu,
  49                                             uint32_t                                  basic_color)
  50         : RegionView(parent, time_axis, region, spu, basic_color, true)
  51         , _region_relative_time_converter(region->session().tempo_map(), region->position())
  52         , _source_relative_time_converter(region->session().tempo_map(), region->position() - region->start())
  53         , _parameter(param)
  54 {
  55         TimeAxisViewItem::set_position (_region->position(), this);
  56
  57         if (list) {
  58                 assert(list->parameter() == param);
  59                 create_line(list);
  60         }
  61
  62         group->raise_to_top();
  63
  64         trackview.editor().MouseModeChanged.connect(_mouse_mode_connection, invalidator (*this),
  65                                                     boost::bind (&AutomationRegionView::mouse_mode_changed, this),
  66                                                     gui_context ());
  67 }
  68
  69 AutomationRegionView::~AutomationRegionView ()
  70 {
  71         in_destructor = true;
  72         RegionViewGoingAway (this); /* EMIT_SIGNAL */
  73 }
  74
  75 void
  76 AutomationRegionView::init (bool /*wfd*/)
  77 {
  78         _enable_display = false;
  79
  80         RegionView::init (false);
  81
  82         reset_width_dependent_items ((double) _region->length() / samples_per_pixel);
  83
  84         set_height (trackview.current_height());
  85
  86         fill_color_name = "midi frame base";
  87         set_colors ();
  88
  89         _enable_display = true;
  90 }
  91
  92 void
  93 AutomationRegionView::create_line (boost::shared_ptr<ARDOUR::AutomationList> list)
  94 {
  95         _line = boost::shared_ptr<AutomationLine> (new MidiAutomationLine(
  96                                 ARDOUR::EventTypeMap::instance().to_symbol(list->parameter()),
  97                                 trackview, *get_canvas_group(), list,
  98                                 boost::dynamic_pointer_cast<ARDOUR::MidiRegion> (_region),
  99                                 _parameter,
 100                                 &_source_relative_time_converter));
 101         _line->set_colors();
 102         _line->set_height ((uint32_t)rint(trackview.current_height() - 2.5 - NAME_HIGHLIGHT_SIZE));
 103         _line->set_visibility (AutomationLine::VisibleAspects (AutomationLine::Line|AutomationLine::ControlPoints));
 104         _line->set_maximum_time (_region->length());
 105         _line->set_offset (_region->start ());
 106 }
 107
 108 uint32_t
 109 AutomationRegionView::get_fill_color() const
 110 {
 111         const std::string mod_name = (_dragging ? "dragging region" :
 112                                       trackview.editor().internal_editing() ? "editable region" :
 113                                       "midi frame base");
 114         if (_selected) {
 115                 return UIConfiguration::instance().color_mod ("selected region base", mod_name);
 116         } else if (high_enough_for_name || !UIConfiguration::instance().get_color_regions_using_track_color()) {
 117                 return UIConfiguration::instance().color_mod ("midi frame base", mod_name);
 118         }
 119         return UIConfiguration::instance().color_mod (fill_color, mod_name);
 120 }
 121
 122 void
 123 AutomationRegionView::mouse_mode_changed ()
 124 {
 125         // Adjust sample colour (become more transparent for internal tools)
 126         set_sample_color();
 127 }
 128
 129 bool
 130 AutomationRegionView::canvas_group_event (GdkEvent* ev)
 131 {
 132         if (in_destructor) {
 133                 return false;
 134         }
 135
 136         PublicEditor& e = trackview.editor ();
 137
 138         if (trackview.editor().internal_editing() &&
 139             ev->type == GDK_BUTTON_RELEASE &&
 140             ev->button.button == 1 &&
 141             e.current_mouse_mode() == Editing::MouseDraw &&
 142             !e.drags()->active()) {
 143
 144                 double x = ev->button.x;
 145                 double y = ev->button.y;
 146
 147                 /* convert to item coordinates in the time axis view */
 148                 automation_view()->canvas_display()->canvas_to_item (x, y);
 149
 150                 /* clamp y */
 151                 y = std::max (y, 0.0);
 152                 y = std::min (y, _height - NAME_HIGHLIGHT_SIZE);
 153
 154                 /* guard points only if primary modifier is used */
 155                 bool with_guard_points = Gtkmm2ext::Keyboard::modifier_state_equals (ev->button.state, Gtkmm2ext::Keyboard::PrimaryModifier);
 156                 add_automation_event (ev, e.pixel_to_sample (x) - _region->position() + _region->start(), y, with_guard_points);
 157                 return true;
 158         }
 159
 160         return RegionView::canvas_group_event (ev);
 161 }
 162
 163 /** @param when Position in samples, where 0 is the start of the region.
 164  *  @param y y position, relative to our TimeAxisView.
 165  */
 166 void
 167 AutomationRegionView::add_automation_event (GdkEvent *, samplepos_t when, double y, bool with_guard_points)
 168 {
 169         if (!_line) {
 170                 boost::shared_ptr<Evoral::Control> c = _region->control(_parameter, true);
 171                 boost::shared_ptr<ARDOUR::AutomationControl> ac
 172                                 = boost::dynamic_pointer_cast<ARDOUR::AutomationControl>(c);
 173                 assert(ac);
 174                 create_line(ac->alist());
 175         }
 176         assert(_line);
 177
 178         AutomationTimeAxisView* const view = automation_view ();
 179
 180         /* compute vertical fractional position */
 181
 182         const double h = trackview.current_height() - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 2;
 183         y = 1.0 - (y / h);
 184
 185         /* snap sample */
 186
 187         when = snap_sample_to_sample (when - _region->start ()).sample + _region->start ();
 188
 189         /* map using line */
 190
 191         double when_d = when;
 192         _line->view_to_model_coord (when_d, y);
 193
 194         XMLNode& before = _line->the_list()->get_state();
 195
 196         if (_line->the_list()->editor_add (when_d, y, with_guard_points)) {
 197                 view->editor().begin_reversible_command (_("add automation event"));
 198
 199                 XMLNode& after = _line->the_list()->get_state();
 200
 201                 view->session()->add_command (new MementoCommand<ARDOUR::AutomationList> (_line->memento_command_binder(), &before, &after));
 202                 view->editor().commit_reversible_command ();
 203
 204                 view->session()->set_dirty ();
 205         }
 206 }
 207
 208 bool
 209 AutomationRegionView::paste (samplepos_t                                      pos,
 210                              unsigned                                        paste_count,
 211                              float                                           times,
 212                              boost::shared_ptr<const ARDOUR::AutomationList> slist)
 213 {
 214         using namespace ARDOUR;
 215
 216         AutomationTimeAxisView* const             view    = automation_view();
 217         boost::shared_ptr<ARDOUR::AutomationList> my_list = _line->the_list();
 218
 219         if (view->session()->transport_rolling() && my_list->automation_write()) {
 220                 /* do not paste if this control is in write mode and we're rolling */
 221                 return false;
 222         }
 223
 224         AutomationType src_type = (AutomationType)slist->parameter().type ();
 225         double len = slist->length();
 226
 227         /* add multi-paste offset if applicable */
 228         if (parameter_is_midi (src_type)) {
 229                 // convert length to samples (incl tempo-ramps)
 230                 len = DoubleBeatsSamplesConverter (view->session()->tempo_map(), pos).to (len * paste_count);
 231                 pos += view->editor ().get_paste_offset (pos, paste_count > 0 ? 1 : 0, len);
 232         } else {
 233                 pos += view->editor ().get_paste_offset (pos, paste_count, len);
 234         }
 235
 236         /* convert sample-position to model's unit and position */
 237         const double model_pos = _source_relative_time_converter.from (
 238                 pos - _source_relative_time_converter.origin_b());
 239
 240         XMLNode& before = my_list->get_state();
 241         my_list->paste(*slist, model_pos, DoubleBeatsSamplesConverter (view->session()->tempo_map(), pos));
 242         view->session()->add_command(
 243                 new MementoCommand<ARDOUR::AutomationList>(_line->memento_command_binder(), &before, &my_list->get_state()));
 244
 245         return true;
 246 }
 247
 248 void
 249 AutomationRegionView::set_height (double h)
 250 {
 251         RegionView::set_height(h);
 252
 253         if (_line) {
 254                 _line->set_height ((uint32_t)rint(h - 2.5 - NAME_HIGHLIGHT_SIZE));
 255         }
 256 }
 257
 258 bool
 259 AutomationRegionView::set_position (samplepos_t pos, void* src, double* ignored)
 260 {
 261         if (_line) {
 262                 _line->set_maximum_time (_region->length ());
 263         }
 264
 265         return RegionView::set_position(pos, src, ignored);
 266 }
 267
 268
 269 void
 270 AutomationRegionView::reset_width_dependent_items (double pixel_width)
 271 {
 272         RegionView::reset_width_dependent_items(pixel_width);
 273
 274         if (_line) {
 275                 _line->reset();
 276         }
 277 }
 278
 279
 280 void
 281 AutomationRegionView::region_resized (const PBD::PropertyChange& what_changed)
 282 {
 283         RegionView::region_resized (what_changed);
 284
 285         if (what_changed.contains (ARDOUR::Properties::position)) {
 286                 _region_relative_time_converter.set_origin_b(_region->position());
 287         }
 288
 289         if (what_changed.contains (ARDOUR::Properties::start) ||
 290             what_changed.contains (ARDOUR::Properties::position)) {
 291                 _source_relative_time_converter.set_origin_b (_region->position() - _region->start());
 292         }
 293
 294         if (!_line) {
 295                 return;
 296         }
 297
 298         if (what_changed.contains (ARDOUR::Properties::start)) {
 299                 _line->set_offset (_region->start ());
 300         }
 301
 302         if (what_changed.contains (ARDOUR::Properties::length)) {
 303                 _line->set_maximum_time (_region->length());
 304         }
 305 }
 306
 307
 308 void
 309 AutomationRegionView::entered ()
 310 {
 311         if (_line) {
 312                 _line->track_entered();
 313         }
 314 }
 315
 316
 317 void
 318 AutomationRegionView::exited ()
 319 {
 320         if (_line) {
 321                 _line->track_exited();
 322         }
 323 }