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         if (list) {
  56                 assert(list->parameter() == param);
  57                 create_line(list);
  58         }
  59
  60         group->raise_to_top();
  61
  62         trackview.editor().MouseModeChanged.connect(_mouse_mode_connection, invalidator (*this),
  63                                                     boost::bind (&AutomationRegionView::mouse_mode_changed, this),
  64                                                     gui_context ());
  65 }
  66
  67 AutomationRegionView::~AutomationRegionView ()
  68 {
  69         RegionViewGoingAway (this); /* EMIT_SIGNAL */
  70 }
  71
  72 void
  73 AutomationRegionView::init (bool /*wfd*/)
  74 {
  75         _enable_display = false;
  76
  77         RegionView::init (false);
  78
  79         reset_width_dependent_items ((double) _region->length() / samples_per_pixel);
  80
  81         set_height (trackview.current_height());
  82
  83         fill_color_name = "midi frame base";
  84         set_colors ();
  85
  86         _enable_display = true;
  87 }
  88
  89 void
  90 AutomationRegionView::create_line (boost::shared_ptr<ARDOUR::AutomationList> list)
  91 {
  92         _line = boost::shared_ptr<AutomationLine> (new MidiAutomationLine(
  93                                 ARDOUR::EventTypeMap::instance().to_symbol(list->parameter()),
  94                                 trackview, *get_canvas_group(), list,
  95                                 boost::dynamic_pointer_cast<ARDOUR::MidiRegion> (_region),
  96                                 _parameter,
  97                                 &_source_relative_time_converter));
  98         _line->set_colors();
  99         _line->set_height ((uint32_t)rint(trackview.current_height() - 2.5 - NAME_HIGHLIGHT_SIZE));
 100         _line->set_visibility (AutomationLine::VisibleAspects (AutomationLine::Line|AutomationLine::ControlPoints));
 101         _line->set_maximum_time (_region->length());
 102         _line->set_offset (_region->start ());
 103 }
 104
 105 uint32_t
 106 AutomationRegionView::get_fill_color() const
 107 {
 108         const std::string mod_name = (_dragging ? "dragging region" :
 109                                       trackview.editor().internal_editing() ? "editable region" :
 110                                       "midi frame base");
 111         if (_selected) {
 112                 return UIConfiguration::instance().color_mod ("selected region base", mod_name);
 113         } else if (high_enough_for_name || !UIConfiguration::instance().get_color_regions_using_track_color()) {
 114                 return UIConfiguration::instance().color_mod ("midi frame base", mod_name);
 115         }
 116         return UIConfiguration::instance().color_mod (fill_color, mod_name);
 117 }
 118
 119 void
 120 AutomationRegionView::mouse_mode_changed ()
 121 {
 122         // Adjust frame colour (become more transparent for internal tools)
 123         set_frame_color();
 124 }
 125
 126 bool
 127 AutomationRegionView::canvas_group_event (GdkEvent* ev)
 128 {
 129         if (in_destructor) {
 130                 return false;
 131         }
 132
 133         PublicEditor& e = trackview.editor ();
 134
 135         if (trackview.editor().internal_editing() &&
 136             ev->type == GDK_BUTTON_RELEASE &&
 137             e.current_mouse_mode() == Editing::MouseDraw &&
 138             !e.drags()->active()) {
 139
 140                 double x = ev->button.x;
 141                 double y = ev->button.y;
 142
 143                 /* convert to item coordinates in the time axis view */
 144                 automation_view()->canvas_display()->canvas_to_item (x, y);
 145
 146                 /* clamp y */
 147                 y = std::max (y, 0.0);
 148                 y = std::min (y, _height - NAME_HIGHLIGHT_SIZE);
 149
 150                 /* guard points only if primary modifier is used */
 151                 bool with_guard_points = Gtkmm2ext::Keyboard::modifier_state_equals (ev->button.state, Gtkmm2ext::Keyboard::PrimaryModifier);
 152                 add_automation_event (ev, e.pixel_to_sample (x) - _region->position() + _region->start(), y, with_guard_points);
 153                 return true;
 154         }
 155
 156         return RegionView::canvas_group_event (ev);
 157 }
 158
 159 /** @param when Position in frames, where 0 is the start of the region.
 160  *  @param y y position, relative to our TimeAxisView.
 161  */
 162 void
 163 AutomationRegionView::add_automation_event (GdkEvent *, framepos_t when, double y, bool with_guard_points)
 164 {
 165         if (!_line) {
 166                 boost::shared_ptr<Evoral::Control> c = _region->control(_parameter, true);
 167                 boost::shared_ptr<ARDOUR::AutomationControl> ac
 168                                 = boost::dynamic_pointer_cast<ARDOUR::AutomationControl>(c);
 169                 assert(ac);
 170                 create_line(ac->alist());
 171         }
 172         assert(_line);
 173
 174         AutomationTimeAxisView* const view = automation_view ();
 175
 176         /* compute vertical fractional position */
 177
 178         const double h = trackview.current_height() - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 2;
 179         y = 1.0 - (y / h);
 180
 181         /* snap frame */
 182
 183         when = snap_frame_to_frame (when - _region->start ()) + _region->start ();
 184
 185         /* map using line */
 186
 187         double when_d = when;
 188         _line->view_to_model_coord (when_d, y);
 189
 190         XMLNode& before = _line->the_list()->get_state();
 191
 192         if (_line->the_list()->editor_add (when_d, y, with_guard_points)) {
 193                 view->editor().begin_reversible_command (_("add automation event"));
 194
 195                 XMLNode& after = _line->the_list()->get_state();
 196
 197                 view->session()->add_command (new MementoCommand<ARDOUR::AutomationList> (_line->memento_command_binder(), &before, &after));
 198                 view->editor().commit_reversible_command ();
 199
 200                 view->session()->set_dirty ();
 201         }
 202 }
 203
 204 bool
 205 AutomationRegionView::paste (framepos_t                                      pos,
 206                              unsigned                                        paste_count,
 207                              float                                           times,
 208                              boost::shared_ptr<const ARDOUR::AutomationList> slist)
 209 {
 210         AutomationTimeAxisView* const             view    = automation_view();
 211         boost::shared_ptr<ARDOUR::AutomationList> my_list = _line->the_list();
 212
 213         if (view->session()->transport_rolling() && my_list->automation_write()) {
 214                 /* do not paste if this control is in write mode and we're rolling */
 215                 return false;
 216         }
 217
 218         /* add multi-paste offset if applicable */
 219         pos += view->editor().get_paste_offset(
 220                 pos, paste_count, _source_relative_time_converter.to(slist->length()));
 221
 222         const double model_pos = _source_relative_time_converter.from(
 223                 pos - _source_relative_time_converter.origin_b());
 224
 225         XMLNode& before = my_list->get_state();
 226         my_list->paste(*slist, model_pos, times);
 227         view->session()->add_command(
 228                 new MementoCommand<ARDOUR::AutomationList>(_line->memento_command_binder(), &before, &my_list->get_state()));
 229
 230         return true;
 231 }
 232
 233 void
 234 AutomationRegionView::set_height (double h)
 235 {
 236         RegionView::set_height(h);
 237
 238         if (_line) {
 239                 _line->set_height ((uint32_t)rint(h - 2.5 - NAME_HIGHLIGHT_SIZE));
 240         }
 241 }
 242
 243 bool
 244 AutomationRegionView::set_position (framepos_t pos, void* src, double* ignored)
 245 {
 246         if (_line) {
 247                 _line->set_maximum_time (_region->length ());
 248         }
 249
 250         return RegionView::set_position(pos, src, ignored);
 251 }
 252
 253
 254 void
 255 AutomationRegionView::reset_width_dependent_items (double pixel_width)
 256 {
 257         RegionView::reset_width_dependent_items(pixel_width);
 258
 259         if (_line) {
 260                 _line->reset();
 261         }
 262 }
 263
 264
 265 void
 266 AutomationRegionView::region_resized (const PBD::PropertyChange& what_changed)
 267 {
 268         RegionView::region_resized (what_changed);
 269
 270         if (what_changed.contains (ARDOUR::Properties::position)) {
 271                 _region_relative_time_converter.set_origin_b(_region->position());
 272         }
 273
 274         if (what_changed.contains (ARDOUR::Properties::start) ||
 275             what_changed.contains (ARDOUR::Properties::position)) {
 276                 _source_relative_time_converter.set_origin_b (_region->position() - _region->start());
 277         }
 278
 279         if (!_line) {
 280                 return;
 281         }
 282
 283         if (what_changed.contains (ARDOUR::Properties::start)) {
 284                 _line->set_offset (_region->start ());
 285         }
 286
 287         if (what_changed.contains (ARDOUR::Properties::length)) {
 288                 _line->set_maximum_time (_region->length());
 289         }
 290 }
 291
 292
 293 void
 294 AutomationRegionView::entered ()
 295 {
 296         if (_line) {
 297                 _line->track_entered();
 298         }
 299 }
 300
 301
 302 void
 303 AutomationRegionView::exited ()
 304 {
 305         if (_line) {
 306                 _line->track_exited();
 307         }
 308 }