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         Gdk::Color color = source_trackview.color();
  95         unsigned char r,g,b ;
  96         r = color.get_red()/256;
  97         g = color.get_green()/256;
  98         b = color.get_blue()/256;
  99         return RGBA_TO_UINT(r, g, b, alpha);
 100 }
 101
 102 bool
 103 GhostRegion::is_automation_ghost() {
 104         return (dynamic_cast<AutomationTimeAxisView*>(&trackview)) != 0;
 105 }
 106
 107 AudioGhostRegion::AudioGhostRegion(TimeAxisView& tv, TimeAxisView& source_tv, double initial_unit_pos)
 108         : GhostRegion(tv.ghost_group(), tv, source_tv, initial_unit_pos) {
 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 /*
 159  * This is the general constructor, and is called when the destination timeaxisview doesn't have
 160  * a midistreamview. But what to do when positioning the midi ghost here? For example, there is
 161  * no range controller in these tracks. maybe show the whole range.
 162  */
 163 MidiGhostRegion::MidiGhostRegion(TimeAxisView& tv, TimeAxisView& source_tv, double initial_unit_pos)
 164         : GhostRegion(tv.ghost_group(), tv, source_tv, initial_unit_pos)
 165 {
 166
 167         base_rect->lower_to_bottom();
 168 }
 169
 170 MidiGhostRegion::MidiGhostRegion(MidiStreamView& msv, TimeAxisView& source_tv, double initial_unit_pos)
 171         : GhostRegion(msv.midi_underlay_group, msv.trackview(), source_tv, initial_unit_pos)
 172 {
 173         base_rect->lower_to_bottom();
 174 }
 175
 176 MidiGhostRegion::~MidiGhostRegion()
 177 {
 178         //clear_events();
 179 }
 180
 181 MidiGhostRegion::Event::Event(ArdourCanvas::CanvasNoteEvent* e)
 182         : event(e)
 183 {
 184 }
 185
 186 MidiGhostRegion::Note::Note(ArdourCanvas::CanvasNote* n, ArdourCanvas::Group* g)
 187         : Event(n)
 188 {
 189         rect = new ArdourCanvas::SimpleRect(*g, n->x1(), n->y1(), n->x2(), n->y2());
 190 }
 191
 192 MidiGhostRegion::Note::~Note()
 193 {
 194         //delete rect;
 195 }
 196
 197 void
 198 MidiGhostRegion::Note::x_changed()
 199 {
 200         rect->property_x1() = event->x1();
 201         rect->property_x2() = event->x2();
 202 }
 203
 204 MidiGhostRegion::Hit::Hit(ArdourCanvas::CanvasHit* h, ArdourCanvas::Group*)
 205         : Event(h)
 206 {
 207         cerr << "Hit ghost item does not work yet" << endl;
 208 }
 209
 210 MidiGhostRegion::Hit::~Hit()
 211 {
 212 }
 213
 214 void
 215 MidiGhostRegion::Hit::x_changed()
 216 {
 217 }
 218
 219 void
 220 MidiGhostRegion::set_samples_per_unit (double /*spu*/)
 221 {
 222 }
 223
 224 MidiStreamView*
 225 MidiGhostRegion::midi_view()
 226 {
 227         MidiTimeAxisView* mtv;
 228
 229         if ((mtv = dynamic_cast<MidiTimeAxisView*>(&trackview)) != 0) {
 230                 return mtv->midi_view();
 231         }
 232         else {
 233                 return 0;
 234         }
 235 }
 236
 237 void
 238 MidiGhostRegion::set_height()
 239 {
 240         GhostRegion::set_height();
 241         update_range();
 242 }
 243
 244 void
 245 MidiGhostRegion::set_colors()
 246 {
 247         MidiGhostRegion::Note* note;
 248         guint fill = source_track_color(200);
 249
 250         GhostRegion::set_colors();
 251
 252         for (EventList::iterator it = events.begin(); it != events.end(); ++it) {
 253                 if ((note = dynamic_cast<MidiGhostRegion::Note*>(*it)) != 0) {
 254                         note->rect->property_fill_color_rgba() = fill;
 255                         note->rect->property_outline_color_rgba() =  ARDOUR_UI::config()->canvasvar_GhostTrackMidiOutline.get();
 256                 }
 257         }
 258 }
 259
 260 void
 261 MidiGhostRegion::update_range()
 262 {
 263         MidiStreamView* mv = midi_view();
 264
 265         if (!mv) {
 266                 return;
 267         }
 268
 269         MidiGhostRegion::Note* note;
 270         uint8_t note_num;
 271         double y;
 272
 273         for (EventList::iterator it = events.begin(); it != events.end(); ++it) {
 274                 if ((note = dynamic_cast<MidiGhostRegion::Note*>(*it)) != 0) {
 275                         note_num = note->event->note()->note();
 276
 277                         if (note_num < mv->lowest_note() || note_num > mv->highest_note()) {
 278                                 note->rect->hide();
 279                         }
 280                         else {
 281                                 note->rect->show();
 282                                 y = mv->note_to_y(note_num);
 283                                 note->rect->property_y1() = y;
 284                                 note->rect->property_y2() = y + mv->note_height();
 285                         }
 286                 }
 287         }
 288 }
 289
 290 void
 291 MidiGhostRegion::add_note(ArdourCanvas::CanvasNote* n)
 292 {
 293         Note* note = new Note(n, group);
 294         events.push_back(note);
 295
 296         note->rect->property_fill_color_rgba() = source_track_color(200);
 297         note->rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_GhostTrackMidiOutline.get();
 298
 299         MidiStreamView* mv = midi_view();
 300
 301         if (mv) {
 302                 const uint8_t note_num = n->note()->note();
 303
 304                 if (note_num < mv->lowest_note() || note_num > mv->highest_note()) {
 305                         note->rect->hide();
 306                 } else {
 307                         const double y = mv->note_to_y(note_num);
 308                         note->rect->property_y1() = y;
 309                         note->rect->property_y2() = y + mv->note_height();
 310                 }
 311         }
 312 }
 313
 314 void
 315 MidiGhostRegion::add_hit(ArdourCanvas::CanvasHit* /*h*/)
 316 {
 317         //events.push_back(new Hit(h, group));
 318 }
 319
 320 void
 321 MidiGhostRegion::clear_events()
 322 {
 323         for (EventList::iterator it = events.begin(); it != events.end(); ++it) {
 324                 delete *it;
 325         }
 326
 327         events.clear();
 328 }
 329