gtk2_ardour/automation_region_view.cc

   1 /*
   2  * Copyright (C) 2007-2015 David Robillard <d@drobilla.net>
   3  * Copyright (C) 2008-2017 Paul Davis <paul@linuxaudiosystems.com>
   4  * Copyright (C) 2009-2011 Carl Hetherington <carl@carlh.net>
   5  * Copyright (C) 2014-2017 Nick Mainsbridge <mainsbridge@gmail.com>
   6  * Copyright (C) 2017-2019 Robin Gareus <robin@gareus.org>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License along
  19  * with this program; if not, write to the Free Software Foundation, Inc.,
  20  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  21  */
  22
  23 #include <utility>
  24
  25 #include "pbd/memento_command.h"
  26
  27 #include "ardour/automation_control.h"
  28 #include "ardour/event_type_map.h"
  29 #include "ardour/midi_automation_list_binder.h"
  30 #include "ardour/midi_region.h"
  31 #include "ardour/session.h"
  32
  33 #include "gtkmm2ext/keyboard.h"
  34
  35 #include "automation_region_view.h"
  36 #include "editing.h"
  37 #include "editor.h"
  38 #include "editor_drag.h"
  39 #include "gui_thread.h"
  40 #include "midi_automation_line.h"
  41 #include "public_editor.h"
  42 #include "ui_config.h"
  43
  44 #include "pbd/i18n.h"
  45
  46 AutomationRegionView::AutomationRegionView (ArdourCanvas::Container*                  parent,
  47                                             AutomationTimeAxisView&                   time_axis,
  48                                             boost::shared_ptr<ARDOUR::Region>         region,
  49                                             const Evoral::Parameter&                  param,
  50                                             boost::shared_ptr<ARDOUR::AutomationList> list,
  51                                             double                                    spu,
  52                                             uint32_t                                  basic_color)
  53         : RegionView(parent, time_axis, region, spu, basic_color, true)
  54         , _region_relative_time_converter(region->session().tempo_map(), region->position())
  55         , _source_relative_time_converter(region->session().tempo_map(), region->position() - region->start())
  56         , _parameter(param)
  57 {
  58         TimeAxisViewItem::set_position (_region->position(), this);
  59
  60         if (list) {
  61                 assert(list->parameter() == param);
  62                 create_line(list);
  63         }
  64
  65         group->raise_to_top();
  66
  67         trackview.editor().MouseModeChanged.connect(_mouse_mode_connection, invalidator (*this),
  68                                                     boost::bind (&AutomationRegionView::mouse_mode_changed, this),
  69                                                     gui_context ());
  70 }
  71
  72 AutomationRegionView::~AutomationRegionView ()
  73 {
  74         in_destructor = true;
  75         RegionViewGoingAway (this); /* EMIT_SIGNAL */
  76 }
  77
  78 void
  79 AutomationRegionView::init (bool /*wfd*/)
  80 {
  81         _enable_display = false;
  82
  83         RegionView::init (false);
  84
  85         reset_width_dependent_items ((double) _region->length() / samples_per_pixel);
  86
  87         set_height (trackview.current_height());
  88
  89         fill_color_name = "midi frame base";
  90         set_colors ();
  91
  92         _enable_display = true;
  93 }
  94
  95 void
  96 AutomationRegionView::create_line (boost::shared_ptr<ARDOUR::AutomationList> list)
  97 {
  98         _line = boost::shared_ptr<AutomationLine> (new MidiAutomationLine(
  99                                 ARDOUR::EventTypeMap::instance().to_symbol(list->parameter()),
 100                                 trackview, *get_canvas_group(), list,
 101                                 boost::dynamic_pointer_cast<ARDOUR::MidiRegion> (_region),
 102                                 _parameter,
 103                                 &_source_relative_time_converter));
 104         _line->set_colors();
 105         _line->set_height ((uint32_t)rint(trackview.current_height() - 2.5 - NAME_HIGHLIGHT_SIZE));
 106         _line->set_visibility (AutomationLine::VisibleAspects (AutomationLine::Line|AutomationLine::ControlPoints));
 107         _line->set_maximum_time (_region->length());
 108         _line->set_offset (_region->start ());
 109 }
 110
 111 uint32_t
 112 AutomationRegionView::get_fill_color() const
 113 {
 114         const std::string mod_name = (_dragging ? "dragging region" :
 115                                       trackview.editor().internal_editing() ? "editable region" :
 116                                       "midi frame base");
 117         if (_selected) {
 118                 return UIConfiguration::instance().color_mod ("selected region base", mod_name);
 119         } else if (high_enough_for_name || !UIConfiguration::instance().get_color_regions_using_track_color()) {
 120                 return UIConfiguration::instance().color_mod ("midi frame base", mod_name);
 121         }
 122         return UIConfiguration::instance().color_mod (fill_color, mod_name);
 123 }
 124
 125 void
 126 AutomationRegionView::mouse_mode_changed ()
 127 {
 128         /* Adjust frame colour (become more transparent for internal tools) */
 129         set_frame_color();
 130 }
 131
 132 bool
 133 AutomationRegionView::canvas_group_event (GdkEvent* ev)
 134 {
 135         if (in_destructor) {
 136                 return false;
 137         }
 138
 139         PublicEditor& e = trackview.editor ();
 140
 141         if (trackview.editor().internal_editing() &&
 142             ev->type == GDK_BUTTON_RELEASE &&
 143             ev->button.button == 1 &&
 144             e.current_mouse_mode() == Editing::MouseDraw &&
 145             !e.drags()->active()) {
 146
 147                 double x = ev->button.x;
 148                 double y = ev->button.y;
 149
 150                 /* convert to item coordinates in the time axis view */
 151                 automation_view()->canvas_display()->canvas_to_item (x, y);
 152
 153                 /* clamp y */
 154                 y = std::max (y, 0.0);
 155                 y = std::min (y, _height - NAME_HIGHLIGHT_SIZE);
 156
 157                 /* guard points only if primary modifier is used */
 158                 bool with_guard_points = Gtkmm2ext::Keyboard::modifier_state_equals (ev->button.state, Gtkmm2ext::Keyboard::PrimaryModifier);
 159                 add_automation_event (ev, e.pixel_to_sample (x) - _region->position() + _region->start(), y, with_guard_points);
 160                 return true;
 161         }
 162
 163         return RegionView::canvas_group_event (ev);
 164 }
 165
 166 /** @param when Position in samples, where 0 is the start of the region.
 167  *  @param y y position, relative to our TimeAxisView.
 168  */
 169 void
 170 AutomationRegionView::add_automation_event (GdkEvent *, samplepos_t when, double y, bool with_guard_points)
 171 {
 172         if (!_line) {
 173                 boost::shared_ptr<Evoral::Control> c = _region->control(_parameter, true);
 174                 boost::shared_ptr<ARDOUR::AutomationControl> ac
 175                                 = boost::dynamic_pointer_cast<ARDOUR::AutomationControl>(c);
 176                 assert(ac);
 177                 create_line(ac->alist());
 178         }
 179         assert(_line);
 180
 181         AutomationTimeAxisView* const view = automation_view ();
 182
 183         /* compute vertical fractional position */
 184
 185         const double h = trackview.current_height() - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 2;
 186         y = 1.0 - (y / h);
 187
 188         /* snap sample */
 189
 190         when = snap_sample_to_sample (when - _region->start ()).sample + _region->start ();
 191
 192         /* map using line */
 193
 194         double when_d = when;
 195         _line->view_to_model_coord (when_d, y);
 196
 197         XMLNode& before = _line->the_list()->get_state();
 198
 199         if (_line->the_list()->editor_add (when_d, y, with_guard_points)) {
 200                 view->editor().begin_reversible_command (_("add automation event"));
 201
 202                 XMLNode& after = _line->the_list()->get_state();
 203
 204                 view->session()->add_command (new MementoCommand<ARDOUR::AutomationList> (_line->memento_command_binder(), &before, &after));
 205                 view->editor().commit_reversible_command ();
 206
 207                 view->session()->set_dirty ();
 208         }
 209 }
 210
 211 bool
 212 AutomationRegionView::paste (samplepos_t                                     pos,
 213                              unsigned                                        paste_count,
 214                              float                                           times,
 215                              boost::shared_ptr<const ARDOUR::AutomationList> slist)
 216 {
 217         using namespace ARDOUR;
 218
 219         AutomationTimeAxisView* const             view    = automation_view();
 220         boost::shared_ptr<ARDOUR::AutomationList> my_list = _line->the_list();
 221
 222         if (view->session()->transport_rolling() && my_list->automation_write()) {
 223                 /* do not paste if this control is in write mode and we're rolling */
 224                 return false;
 225         }
 226
 227         AutomationType src_type = (AutomationType)slist->parameter().type ();
 228         double len = slist->length();
 229
 230         /* add multi-paste offset if applicable */
 231         if (parameter_is_midi (src_type)) {
 232                 // convert length to samples (incl tempo-ramps)
 233                 len = DoubleBeatsSamplesConverter (view->session()->tempo_map(), pos).to (len * paste_count);
 234                 pos += view->editor ().get_paste_offset (pos, paste_count > 0 ? 1 : 0, len);
 235         } else {
 236                 pos += view->editor ().get_paste_offset (pos, paste_count, len);
 237         }
 238
 239         /* convert sample-position to model's unit and position */
 240         const double model_pos = _source_relative_time_converter.from (
 241                 pos - _source_relative_time_converter.origin_b());
 242
 243         XMLNode& before = my_list->get_state();
 244         my_list->paste(*slist, model_pos, DoubleBeatsSamplesConverter (view->session()->tempo_map(), pos));
 245         view->session()->add_command(
 246                 new MementoCommand<ARDOUR::AutomationList>(_line->memento_command_binder(), &before, &my_list->get_state()));
 247
 248         return true;
 249 }
 250
 251 void
 252 AutomationRegionView::set_height (double h)
 253 {
 254         RegionView::set_height(h);
 255
 256         if (_line) {
 257                 _line->set_height ((uint32_t)rint(h - 2.5 - NAME_HIGHLIGHT_SIZE));
 258         }
 259 }
 260
 261 bool
 262 AutomationRegionView::set_position (samplepos_t pos, void* src, double* ignored)
 263 {
 264         if (_line) {
 265                 _line->set_maximum_time (_region->length ());
 266         }
 267
 268         return RegionView::set_position(pos, src, ignored);
 269 }
 270
 271
 272 void
 273 AutomationRegionView::reset_width_dependent_items (double pixel_width)
 274 {
 275         RegionView::reset_width_dependent_items(pixel_width);
 276
 277         if (_line) {
 278                 _line->reset();
 279         }
 280 }
 281
 282
 283 void
 284 AutomationRegionView::region_resized (const PBD::PropertyChange& what_changed)
 285 {
 286         RegionView::region_resized (what_changed);
 287
 288         if (what_changed.contains (ARDOUR::Properties::position)) {
 289                 _region_relative_time_converter.set_origin_b(_region->position());
 290         }
 291
 292         if (what_changed.contains (ARDOUR::Properties::start) ||
 293             what_changed.contains (ARDOUR::Properties::position)) {
 294                 _source_relative_time_converter.set_origin_b (_region->position() - _region->start());
 295         }
 296
 297         if (!_line) {
 298                 return;
 299         }
 300
 301         if (what_changed.contains (ARDOUR::Properties::start)) {
 302                 _line->set_offset (_region->start ());
 303         }
 304
 305         if (what_changed.contains (ARDOUR::Properties::length)) {
 306                 _line->set_maximum_time (_region->length());
 307         }
 308 }
 309
 310
 311 void
 312 AutomationRegionView::entered ()
 313 {
 314         if (_line) {
 315                 _line->track_entered();
 316         }
 317 }
 318
 319
 320 void
 321 AutomationRegionView::exited ()
 322 {
 323         if (_line) {
 324                 _line->track_exited();
 325         }
 326 }