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         RegionViewGoingAway (this); /* EMIT_SIGNAL */
  72 }
  73
  74 void
  75 AutomationRegionView::init (bool /*wfd*/)
  76 {
  77         _enable_display = false;
  78
  79         RegionView::init (false);
  80
  81         reset_width_dependent_items ((double) _region->length() / samples_per_pixel);
  82
  83         set_height (trackview.current_height());
  84
  85         fill_color_name = "midi frame base";
  86         set_colors ();
  87
  88         _enable_display = true;
  89 }
  90
  91 void
  92 AutomationRegionView::create_line (boost::shared_ptr<ARDOUR::AutomationList> list)
  93 {
  94         _line = boost::shared_ptr<AutomationLine> (new MidiAutomationLine(
  95                                 ARDOUR::EventTypeMap::instance().to_symbol(list->parameter()),
  96                                 trackview, *get_canvas_group(), list,
  97                                 boost::dynamic_pointer_cast<ARDOUR::MidiRegion> (_region),
  98                                 _parameter,
  99                                 &_source_relative_time_converter));
 100         _line->set_colors();
 101         _line->set_height ((uint32_t)rint(trackview.current_height() - 2.5 - NAME_HIGHLIGHT_SIZE));
 102         _line->set_visibility (AutomationLine::VisibleAspects (AutomationLine::Line|AutomationLine::ControlPoints));
 103         _line->set_maximum_time (_region->length());
 104         _line->set_offset (_region->start ());
 105 }
 106
 107 uint32_t
 108 AutomationRegionView::get_fill_color() const
 109 {
 110         const std::string mod_name = (_dragging ? "dragging region" :
 111                                       trackview.editor().internal_editing() ? "editable region" :
 112                                       "midi frame base");
 113         if (_selected) {
 114                 return UIConfiguration::instance().color_mod ("selected region base", mod_name);
 115         } else if (high_enough_for_name || !UIConfiguration::instance().get_color_regions_using_track_color()) {
 116                 return UIConfiguration::instance().color_mod ("midi frame base", mod_name);
 117         }
 118         return UIConfiguration::instance().color_mod (fill_color, mod_name);
 119 }
 120
 121 void
 122 AutomationRegionView::mouse_mode_changed ()
 123 {
 124         // Adjust frame colour (become more transparent for internal tools)
 125         set_frame_color();
 126 }
 127
 128 bool
 129 AutomationRegionView::canvas_group_event (GdkEvent* ev)
 130 {
 131         if (in_destructor) {
 132                 return false;
 133         }
 134
 135         PublicEditor& e = trackview.editor ();
 136
 137         if (trackview.editor().internal_editing() &&
 138             ev->type == GDK_BUTTON_RELEASE &&
 139             e.current_mouse_mode() == Editing::MouseDraw &&
 140             !e.drags()->active()) {
 141
 142                 double x = ev->button.x;
 143                 double y = ev->button.y;
 144
 145                 /* convert to item coordinates in the time axis view */
 146                 automation_view()->canvas_display()->canvas_to_item (x, y);
 147
 148                 /* clamp y */
 149                 y = std::max (y, 0.0);
 150                 y = std::min (y, _height - NAME_HIGHLIGHT_SIZE);
 151
 152                 /* guard points only if primary modifier is used */
 153                 bool with_guard_points = Gtkmm2ext::Keyboard::modifier_state_equals (ev->button.state, Gtkmm2ext::Keyboard::PrimaryModifier);
 154                 add_automation_event (ev, e.pixel_to_sample (x) - _region->position() + _region->start(), y, with_guard_points);
 155                 return true;
 156         }
 157
 158         return RegionView::canvas_group_event (ev);
 159 }
 160
 161 /** @param when Position in frames, where 0 is the start of the region.
 162  *  @param y y position, relative to our TimeAxisView.
 163  */
 164 void
 165 AutomationRegionView::add_automation_event (GdkEvent *, framepos_t when, double y, bool with_guard_points)
 166 {
 167         if (!_line) {
 168                 boost::shared_ptr<Evoral::Control> c = _region->control(_parameter, true);
 169                 boost::shared_ptr<ARDOUR::AutomationControl> ac
 170                                 = boost::dynamic_pointer_cast<ARDOUR::AutomationControl>(c);
 171                 assert(ac);
 172                 create_line(ac->alist());
 173         }
 174         assert(_line);
 175
 176         AutomationTimeAxisView* const view = automation_view ();
 177
 178         /* compute vertical fractional position */
 179
 180         const double h = trackview.current_height() - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 2;
 181         y = 1.0 - (y / h);
 182
 183         /* snap frame */
 184
 185         when = snap_frame_to_frame (when - _region->start ()) + _region->start ();
 186
 187         /* map using line */
 188
 189         double when_d = when;
 190         _line->view_to_model_coord (when_d, y);
 191
 192         XMLNode& before = _line->the_list()->get_state();
 193
 194         if (_line->the_list()->editor_add (when_d, y, with_guard_points)) {
 195                 view->editor().begin_reversible_command (_("add automation event"));
 196
 197                 XMLNode& after = _line->the_list()->get_state();
 198
 199                 view->session()->add_command (new MementoCommand<ARDOUR::AutomationList> (_line->memento_command_binder(), &before, &after));
 200                 view->editor().commit_reversible_command ();
 201
 202                 view->session()->set_dirty ();
 203         }
 204 }
 205
 206 bool
 207 AutomationRegionView::paste (framepos_t                                      pos,
 208                              unsigned                                        paste_count,
 209                              float                                           times,
 210                              boost::shared_ptr<const ARDOUR::AutomationList> slist)
 211 {
 212         AutomationTimeAxisView* const             view    = automation_view();
 213         boost::shared_ptr<ARDOUR::AutomationList> my_list = _line->the_list();
 214
 215         if (view->session()->transport_rolling() && my_list->automation_write()) {
 216                 /* do not paste if this control is in write mode and we're rolling */
 217                 return false;
 218         }
 219
 220         /* add multi-paste offset if applicable */
 221         pos += view->editor().get_paste_offset(
 222                 pos, paste_count, _source_relative_time_converter.to(slist->length()));
 223
 224         const double model_pos = _source_relative_time_converter.from(
 225                 pos - _source_relative_time_converter.origin_b());
 226
 227         XMLNode& before = my_list->get_state();
 228         my_list->paste(*slist, model_pos, times);
 229         view->session()->add_command(
 230                 new MementoCommand<ARDOUR::AutomationList>(_line->memento_command_binder(), &before, &my_list->get_state()));
 231
 232         return true;
 233 }
 234
 235 void
 236 AutomationRegionView::set_height (double h)
 237 {
 238         RegionView::set_height(h);
 239
 240         if (_line) {
 241                 _line->set_height ((uint32_t)rint(h - 2.5 - NAME_HIGHLIGHT_SIZE));
 242         }
 243 }
 244
 245 bool
 246 AutomationRegionView::set_position (framepos_t pos, void* src, double* ignored)
 247 {
 248         if (_line) {
 249                 _line->set_maximum_time (_region->length ());
 250         }
 251
 252         return RegionView::set_position(pos, src, ignored);
 253 }
 254
 255
 256 void
 257 AutomationRegionView::reset_width_dependent_items (double pixel_width)
 258 {
 259         RegionView::reset_width_dependent_items(pixel_width);
 260
 261         if (_line) {
 262                 _line->reset();
 263         }
 264 }
 265
 266
 267 void
 268 AutomationRegionView::region_resized (const PBD::PropertyChange& what_changed)
 269 {
 270         RegionView::region_resized (what_changed);
 271
 272         if (what_changed.contains (ARDOUR::Properties::position)) {
 273                 _region_relative_time_converter.set_origin_b(_region->position());
 274         }
 275
 276         if (what_changed.contains (ARDOUR::Properties::start) ||
 277             what_changed.contains (ARDOUR::Properties::position)) {
 278                 _source_relative_time_converter.set_origin_b (_region->position() - _region->start());
 279         }
 280
 281         if (!_line) {
 282                 return;
 283         }
 284
 285         if (what_changed.contains (ARDOUR::Properties::start)) {
 286                 _line->set_offset (_region->start ());
 287         }
 288
 289         if (what_changed.contains (ARDOUR::Properties::length)) {
 290                 _line->set_maximum_time (_region->length());
 291         }
 292 }
 293
 294
 295 void
 296 AutomationRegionView::entered ()
 297 {
 298         if (_line) {
 299                 _line->track_entered();
 300         }
 301 }
 302
 303
 304 void
 305 AutomationRegionView::exited ()
 306 {
 307         if (_line) {
 308                 _line->track_exited();
 309         }
 310 }