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 "ardour_ui.h"
  33 #include "automation_region_view.h"
  34 #include "editing.h"
  35 #include "editor.h"
  36 #include "editor_drag.h"
  37 #include "gui_thread.h"
  38 #include "midi_automation_line.h"
  39 #include "public_editor.h"
  40
  41 #include "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() - 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 ARDOUR_UI::config()->color_mod ("selected region base", mod_name);
 113         } else if (high_enough_for_name || !ARDOUR_UI::config()->get_color_regions_using_track_color()) {
 114                 return ARDOUR_UI::config()->color_mod ("midi frame base", mod_name);
 115         }
 116         return ARDOUR_UI::config()->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                 // not in internal edit mode, so just act like a normal region
 137                 return RegionView::canvas_group_event (ev);
 138         }
 139
 140         if (ev->type == GDK_BUTTON_PRESS && e.current_mouse_mode() == Editing::MouseContent) {
 141
 142                 /* XXX: icky dcast to Editor */
 143                 e.drags()->set (new EditorRubberbandSelectDrag (dynamic_cast<Editor*> (&e), group), ev);
 144                 e.drags()->start_grab (ev);
 145                 return true;
 146
 147         } else if (ev->type == GDK_MOTION_NOTIFY && e.drags()->active()) {
 148                 /* we probably shouldn't have to handle this here, but... */
 149                 e.drags()->motion_handler(ev, false);
 150                 return true;
 151
 152         } else if (ev->type == GDK_BUTTON_RELEASE && e.current_mouse_mode() == Editing::MouseDraw) {
 153                 if (e.drags()->end_grab (ev)) {
 154                         return true;
 155                 } else if (e.current_mouse_mode() != Editing::MouseDraw &&
 156                            e.current_mouse_mode() != Editing::MouseContent) {
 157                         return RegionView::canvas_group_event (ev);
 158                 }
 159
 160                 double x = ev->button.x;
 161                 double y = ev->button.y;
 162
 163                 /* convert to item coordinates in the time axis view */
 164                 automation_view()->canvas_display()->canvas_to_item (x, y);
 165
 166                 /* clamp y */
 167                 y = std::max (y, 0.0);
 168                 y = std::min (y, _height - NAME_HIGHLIGHT_SIZE);
 169
 170                 /* guard points only if primary modifier is used */
 171                 bool with_guard_points = Gtkmm2ext::Keyboard::modifier_state_equals (ev->button.state, Gtkmm2ext::Keyboard::PrimaryModifier);
 172                 add_automation_event (ev, e.pixel_to_sample (x) - _region->position() + _region->start(), y, with_guard_points);
 173                 return true;
 174         }
 175
 176         return RegionView::canvas_group_event (ev);
 177 }
 178
 179 /** @param when Position in frames, where 0 is the start of the region.
 180  *  @param y y position, relative to our TimeAxisView.
 181  */
 182 void
 183 AutomationRegionView::add_automation_event (GdkEvent *, framepos_t when, double y, bool with_guard_points)
 184 {
 185         if (!_line) {
 186                 boost::shared_ptr<Evoral::Control> c = _region->control(_parameter, true);
 187                 boost::shared_ptr<ARDOUR::AutomationControl> ac
 188                                 = boost::dynamic_pointer_cast<ARDOUR::AutomationControl>(c);
 189                 assert(ac);
 190                 create_line(ac->alist());
 191         }
 192         assert(_line);
 193
 194         AutomationTimeAxisView* const view = automation_view ();
 195
 196         /* compute vertical fractional position */
 197
 198         const double h = trackview.current_height() - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 2;
 199         y = 1.0 - (y / h);
 200
 201         /* snap frame */
 202
 203         when = snap_frame_to_frame (when - _region->start ()) + _region->start ();
 204
 205         /* map using line */
 206
 207         double when_d = when;
 208         _line->view_to_model_coord (when_d, y);
 209
 210         view->editor().begin_reversible_command (_("add automation event"));
 211         XMLNode& before = _line->the_list()->get_state();
 212
 213         _line->the_list()->add (when_d, y, with_guard_points, false);
 214
 215         XMLNode& after = _line->the_list()->get_state();
 216
 217         view->session()->add_command (new MementoCommand<ARDOUR::AutomationList> (_line->memento_command_binder(), &before, &after));
 218         view->editor().commit_reversible_command ();
 219
 220         view->session()->set_dirty ();
 221 }
 222
 223 bool
 224 AutomationRegionView::paste (framepos_t                                      pos,
 225                              unsigned                                        paste_count,
 226                              float                                           times,
 227                              boost::shared_ptr<const ARDOUR::AutomationList> slist)
 228 {
 229         AutomationTimeAxisView* const             view    = automation_view();
 230         boost::shared_ptr<ARDOUR::AutomationList> my_list = _line->the_list();
 231
 232         if (view->session()->transport_rolling() && my_list->automation_write()) {
 233                 /* do not paste if this control is in write mode and we're rolling */
 234                 return false;
 235         }
 236
 237         /* add multi-paste offset if applicable */
 238         pos += view->editor().get_paste_offset(
 239                 pos, paste_count, _source_relative_time_converter.to(slist->length()));
 240
 241         const double model_pos = _source_relative_time_converter.from(
 242                 pos - _source_relative_time_converter.origin_b());
 243
 244         XMLNode& before = my_list->get_state();
 245         my_list->paste(*slist, model_pos, times);
 246         view->session()->add_command(
 247                 new MementoCommand<ARDOUR::AutomationList>(_line->memento_command_binder(), &before, &my_list->get_state()));
 248
 249         return true;
 250 }
 251
 252 void
 253 AutomationRegionView::set_height (double h)
 254 {
 255         RegionView::set_height(h);
 256
 257         if (_line) {
 258                 _line->set_height ((uint32_t)rint(h - NAME_HIGHLIGHT_SIZE));
 259         }
 260 }
 261
 262 bool
 263 AutomationRegionView::set_position (framepos_t pos, void* src, double* ignored)
 264 {
 265         if (_line) {
 266                 _line->set_maximum_time (_region->length ());
 267         }
 268
 269         return RegionView::set_position(pos, src, ignored);
 270 }
 271
 272
 273 void
 274 AutomationRegionView::reset_width_dependent_items (double pixel_width)
 275 {
 276         RegionView::reset_width_dependent_items(pixel_width);
 277
 278         if (_line) {
 279                 _line->reset();
 280         }
 281 }
 282
 283
 284 void
 285 AutomationRegionView::region_resized (const PBD::PropertyChange& what_changed)
 286 {
 287         RegionView::region_resized (what_changed);
 288
 289         if (what_changed.contains (ARDOUR::Properties::position)) {
 290                 _region_relative_time_converter.set_origin_b(_region->position());
 291         }
 292
 293         if (what_changed.contains (ARDOUR::Properties::start) ||
 294             what_changed.contains (ARDOUR::Properties::position)) {
 295                 _source_relative_time_converter.set_origin_b (_region->position() - _region->start());
 296         }
 297
 298         if (!_line) {
 299                 return;
 300         }
 301
 302         if (what_changed.contains (ARDOUR::Properties::start)) {
 303                 _line->set_offset (_region->start ());
 304         }
 305
 306         if (what_changed.contains (ARDOUR::Properties::length)) {
 307                 _line->set_maximum_time (_region->length());
 308         }
 309 }
 310
 311
 312 void
 313 AutomationRegionView::entered ()
 314 {
 315         if (_line) {
 316                 _line->track_entered();
 317         }
 318 }
 319
 320
 321 void
 322 AutomationRegionView::exited ()
 323 {
 324         if (_line) {
 325                 _line->track_exited();
 326         }
 327 }