gtk2_ardour/ghostregion.cc

   1 /*
   2     Copyright (C) 2000-2007 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #include "evoral/Note.hpp"
  21 #include "ardour_ui.h"
  22 #include "automation_time_axis.h"
  23 #include "canvas-hit.h"
  24 #include "canvas-note.h"
  25 #include "ghostregion.h"
  26 #include "midi_streamview.h"
  27 #include "midi_time_axis.h"
  28 #include "rgb_macros.h"
  29 #include "simplerect.h"
  30 #include "waveview.h"
  31
  32 using namespace std;
  33 using namespace Editing;
  34 using namespace ArdourCanvas;
  35 using namespace ARDOUR;
  36
  37 PBD::Signal1<void,GhostRegion*> GhostRegion::CatchDeletion;
  38
  39 GhostRegion::GhostRegion (ArdourCanvas::Group* parent, TimeAxisView& tv, TimeAxisView& source_tv, double initial_pos)
  40         : trackview (tv)
  41         , source_trackview (source_tv)
  42 {
  43         group = new ArdourCanvas::Group (*parent);
  44         group->property_x() = initial_pos;
  45         group->property_y() = 0.0;
  46
  47         base_rect = new ArdourCanvas::SimpleRect (*group);
  48         base_rect->property_x1() = (double) 0.0;
  49         base_rect->property_y1() = (double) 0.0;
  50         base_rect->property_y2() = (double) trackview.current_height();
  51         base_rect->property_outline_what() = (guint32) 0;
  52
  53         if (!is_automation_ghost()) {
  54                 base_rect->hide();
  55         }
  56
  57         GhostRegion::set_colors();
  58
  59         /* the parent group of a ghostregion is a dedicated group for ghosts,
  60            so the new ghost would want to get to the top of that group*/
  61         group->raise_to_top ();
  62 }
  63
  64 GhostRegion::~GhostRegion ()
  65 {
  66         CatchDeletion (this);
  67         delete base_rect;
  68         delete group;
  69 }
  70
  71 void
  72 GhostRegion::set_duration (double units)
  73 {
  74         base_rect->property_x2() = units;
  75 }
  76
  77 void
  78 GhostRegion::set_height ()
  79 {
  80         base_rect->property_y2() = (double) trackview.current_height();
  81 }
  82
  83 void
  84 GhostRegion::set_colors ()
  85 {
  86         if (is_automation_ghost()) {
  87                 base_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_GhostTrackBase.get();
  88                 base_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_GhostTrackBase.get();
  89         }
  90 }
  91
  92 guint
  93 GhostRegion::source_track_color(unsigned char alpha)
  94 {
  95         Gdk::Color color = source_trackview.color();
  96         return RGBA_TO_UINT (color.get_red() / 256, color.get_green() / 256, color.get_blue() / 256, alpha);
  97 }
  98
  99 bool
 100 GhostRegion::is_automation_ghost()
 101 {
 102         return (dynamic_cast<AutomationTimeAxisView*>(&trackview)) != 0;
 103 }
 104
 105 AudioGhostRegion::AudioGhostRegion(TimeAxisView& tv, TimeAxisView& source_tv, double initial_unit_pos)
 106         : GhostRegion(tv.ghost_group(), tv, source_tv, initial_unit_pos)
 107 {
 108
 109 }
 110
 111 void
 112 AudioGhostRegion::set_samples_per_unit (double spu)
 113 {
 114         for (vector<WaveView*>::iterator i = waves.begin(); i != waves.end(); ++i) {
 115                 (*i)->property_samples_per_unit() = spu;
 116         }
 117 }
 118
 119 void
 120 AudioGhostRegion::set_height ()
 121 {
 122         gdouble ht;
 123         vector<WaveView*>::iterator i;
 124         uint32_t n;
 125
 126         GhostRegion::set_height();
 127
 128         ht = ((trackview.current_height()) / (double) waves.size());
 129
 130         for (n = 0, i = waves.begin(); i != waves.end(); ++i, ++n) {
 131                 gdouble yoff = n * ht;
 132                 (*i)->property_height() = ht;
 133                 (*i)->property_y() = yoff;
 134         }
 135 }
 136
 137 void
 138 AudioGhostRegion::set_colors ()
 139 {
 140         GhostRegion::set_colors();
 141         guint fill_color;
 142
 143         if (is_automation_ghost()) {
 144                 fill_color = ARDOUR_UI::config()->canvasvar_GhostTrackWaveFill.get();
 145         }
 146         else {
 147                 fill_color = source_track_color(200);
 148         }
 149
 150         for (uint32_t n=0; n < waves.size(); ++n) {
 151                 waves[n]->property_wave_color() = ARDOUR_UI::config()->canvasvar_GhostTrackWave.get();
 152                 waves[n]->property_fill_color() = fill_color;
 153                 waves[n]->property_clip_color() = ARDOUR_UI::config()->canvasvar_GhostTrackWaveClip.get();
 154                 waves[n]->property_zero_color() = ARDOUR_UI::config()->canvasvar_GhostTrackZeroLine.get();
 155         }
 156 }
 157
 158 /** The general constructor; called when the destination timeaxisview doesn't have
 159  *  a midistreamview.
 160  *
 161  *  @param tv TimeAxisView that this ghost region is on.
 162  *  @param source_tv TimeAxisView that we are the ghost for.
 163  */
 164 MidiGhostRegion::MidiGhostRegion(TimeAxisView& tv, TimeAxisView& source_tv, double initial_unit_pos)
 165         : GhostRegion(tv.ghost_group(), tv, source_tv, initial_unit_pos)
 166 {
 167         base_rect->lower_to_bottom();
 168         update_range ();
 169
 170         midi_view()->NoteRangeChanged.connect (sigc::mem_fun (*this, &MidiGhostRegion::update_range));
 171 }
 172
 173 /**
 174  *  @param msv MidiStreamView that this ghost region is on.
 175  *  @param source_tv TimeAxisView that we are the ghost for.
 176  */
 177 MidiGhostRegion::MidiGhostRegion(MidiStreamView& msv, TimeAxisView& source_tv, double initial_unit_pos)
 178         : GhostRegion(msv.midi_underlay_group, msv.trackview(), source_tv, initial_unit_pos)
 179 {
 180         base_rect->lower_to_bottom();
 181         update_range ();
 182
 183         midi_view()->NoteRangeChanged.connect (sigc::mem_fun (*this, &MidiGhostRegion::update_range));
 184 }
 185
 186 MidiGhostRegion::~MidiGhostRegion()
 187 {
 188         //clear_events();
 189 }
 190
 191 MidiGhostRegion::Event::Event(ArdourCanvas::CanvasNoteEvent* e)
 192         : event(e)
 193 {
 194 }
 195
 196 MidiGhostRegion::Note::Note(ArdourCanvas::CanvasNote* n, ArdourCanvas::Group* g)
 197         : Event(n)
 198 {
 199         rect = new ArdourCanvas::SimpleRect(*g, n->x1(), n->y1(), n->x2(), n->y2());
 200 }
 201
 202 MidiGhostRegion::Note::~Note()
 203 {
 204         //delete rect;
 205 }
 206
 207 void
 208 MidiGhostRegion::Note::x_changed()
 209 {
 210         rect->property_x1() = event->x1();
 211         rect->property_x2() = event->x2();
 212 }
 213
 214 MidiGhostRegion::Hit::Hit(ArdourCanvas::CanvasHit* h, ArdourCanvas::Group*)
 215         : Event(h)
 216 {
 217         cerr << "Hit ghost item does not work yet" << endl;
 218 }
 219
 220 MidiGhostRegion::Hit::~Hit()
 221 {
 222 }
 223
 224 void
 225 MidiGhostRegion::Hit::x_changed()
 226 {
 227 }
 228
 229 void
 230 MidiGhostRegion::set_samples_per_unit (double /*spu*/)
 231 {
 232 }
 233
 234 /** @return MidiStreamView that we are providing a ghost for */
 235 MidiStreamView*
 236 MidiGhostRegion::midi_view ()
 237 {
 238         StreamView* sv = source_trackview.view ();
 239         assert (sv);
 240         MidiStreamView* msv = dynamic_cast<MidiStreamView*> (sv);
 241         assert (msv);
 242
 243         return msv;
 244 }
 245
 246 void
 247 MidiGhostRegion::set_height ()
 248 {
 249         GhostRegion::set_height();
 250         update_range();
 251 }
 252
 253 void
 254 MidiGhostRegion::set_colors()
 255 {
 256         MidiGhostRegion::Note* note;
 257         guint fill = source_track_color(200);
 258
 259         GhostRegion::set_colors();
 260
 261         for (EventList::iterator it = events.begin(); it != events.end(); ++it) {
 262                 if ((note = dynamic_cast<MidiGhostRegion::Note*>(*it)) != 0) {
 263                         note->rect->property_fill_color_rgba() = fill;
 264                         note->rect->property_outline_color_rgba() =  ARDOUR_UI::config()->canvasvar_GhostTrackMidiOutline.get();
 265                 }
 266         }
 267 }
 268
 269 void
 270 MidiGhostRegion::update_range ()
 271 {
 272         MidiStreamView* mv = midi_view();
 273
 274         if (!mv) {
 275                 return;
 276         }
 277
 278         MidiGhostRegion::Note* note;
 279         double const h = trackview.current_height() / double (mv->contents_note_range ());
 280
 281         for (EventList::iterator it = events.begin(); it != events.end(); ++it) {
 282                 if ((note = dynamic_cast<MidiGhostRegion::Note*>(*it)) != 0) {
 283                         uint8_t const note_num = note->event->note()->note();
 284
 285                         if (note_num < mv->lowest_note() || note_num > mv->highest_note()) {
 286                                 note->rect->hide();
 287                         } else {
 288                                 note->rect->show();
 289                                 double const y = trackview.current_height() - (note_num + 1 - mv->lowest_note()) * h + 1;
 290                                 note->rect->property_y1() = y;
 291                                 note->rect->property_y2() = y + h;
 292                         }
 293                 }
 294         }
 295 }
 296
 297 void
 298 MidiGhostRegion::add_note(ArdourCanvas::CanvasNote* n)
 299 {
 300         Note* note = new Note(n, group);
 301         events.push_back(note);
 302
 303         note->rect->property_fill_color_rgba() = source_track_color(200);
 304         note->rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_GhostTrackMidiOutline.get();
 305
 306         MidiStreamView* mv = midi_view();
 307
 308         if (mv) {
 309                 const uint8_t note_num = n->note()->note();
 310
 311                 if (note_num < mv->lowest_note() || note_num > mv->highest_note()) {
 312                         note->rect->hide();
 313                 } else {
 314                         const double y = mv->note_to_y(note_num);
 315                         note->rect->property_y1() = y;
 316                         note->rect->property_y2() = y + mv->note_height();
 317                 }
 318         }
 319 }
 320
 321 void
 322 MidiGhostRegion::add_hit(ArdourCanvas::CanvasHit* /*h*/)
 323 {
 324         //events.push_back(new Hit(h, group));
 325 }
 326
 327 void
 328 MidiGhostRegion::clear_events()
 329 {
 330         for (EventList::iterator it = events.begin(); it != events.end(); ++it) {
 331                 delete *it;
 332         }
 333
 334         events.clear();
 335 }
 336