gtk2_ardour/streamview.cc

   1 /*
   2     Copyright (C) 2001, 2006 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 #include <cmath>
  20
  21 #include <gtkmm.h>
  22
  23 #include <gtkmm2ext/gtk_ui.h>
  24
  25 #include <ardour/playlist.h>
  26 #include <ardour/region.h>
  27 #include <ardour/source.h>
  28 #include <ardour/diskstream.h>
  29 #include <ardour/track.h>
  30
  31 #include "streamview.h"
  32 #include "regionview.h"
  33 #include "route_time_axis.h"
  34 #include "canvas-waveview.h"
  35 #include "canvas-simplerect.h"
  36 #include "region_selection.h"
  37 #include "selection.h"
  38 #include "public_editor.h"
  39 #include "ardour_ui.h"
  40 #include "rgb_macros.h"
  41 #include "gui_thread.h"
  42 #include "utils.h"
  43 #include "color.h"
  44
  45 using namespace ARDOUR;
  46 using namespace PBD;
  47 using namespace Editing;
  48
  49 StreamView::StreamView (RouteTimeAxisView& tv)
  50         : _trackview (tv)
  51 {
  52         region_color = _trackview.color();
  53
  54         /* set_position() will position the group */
  55
  56         canvas_group = new ArdourCanvas::Group(*_trackview.canvas_display);
  57
  58         canvas_rect = new ArdourCanvas::SimpleRect (*canvas_group);
  59         canvas_rect->property_x1() = 0.0;
  60         canvas_rect->property_y1() = 0.0;
  61         canvas_rect->property_x2() = 1000000.0;
  62         canvas_rect->property_y2() = (double) tv.height;
  63         canvas_rect->property_outline_color_rgba() = color_map[cAudioTrackOutline]; // FIXME
  64         canvas_rect->property_outline_what() = (guint32) (0x1|0x2|0x8);  // outline ends and bottom
  65         canvas_rect->property_fill_color_rgba() = stream_base_color;
  66
  67         canvas_rect->signal_event().connect (bind (mem_fun (_trackview.editor, &PublicEditor::canvas_stream_view_event), canvas_rect, &_trackview));
  68
  69         _samples_per_unit = _trackview.editor.get_current_zoom();
  70
  71         if (_trackview.is_track()) {
  72                 _trackview.track()->DiskstreamChanged.connect (mem_fun (*this, &StreamView::diskstream_changed));
  73                 _trackview.session().TransportStateChange.connect (mem_fun (*this, &StreamView::transport_changed));
  74                 _trackview.get_diskstream()->RecordEnableChanged.connect (mem_fun (*this, &StreamView::rec_enable_changed));
  75                 _trackview.session().RecordStateChanged.connect (mem_fun (*this, &StreamView::sess_rec_enable_changed));
  76         }
  77
  78         rec_updating = false;
  79         rec_active = false;
  80         use_rec_regions = tv.editor.show_waveforms_recording ();
  81
  82         ColorChanged.connect (mem_fun (*this, &StreamView::color_handler));
  83 }
  84
  85 StreamView::~StreamView ()
  86 {
  87         undisplay_diskstream ();
  88         delete canvas_group;
  89 }
  90
  91 void
  92 StreamView::attach ()
  93 {
  94         if (_trackview.is_track()) {
  95                 display_diskstream (_trackview.get_diskstream());
  96         }
  97 }
  98
  99 int
 100 StreamView::set_position (gdouble x, gdouble y)
 101
 102 {
 103         canvas_group->property_x() = x;
 104         canvas_group->property_y() = y;
 105         return 0;
 106 }
 107
 108 int
 109 StreamView::set_height (gdouble h)
 110 {
 111         /* limit the values to something sane-ish */
 112
 113         if (h < 10.0 || h > 1000.0) {
 114                 return -1;
 115         }
 116
 117         canvas_rect->property_y2() = h;
 118
 119         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 120                 (*i)->set_height (h);
 121         }
 122
 123         /*for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 124                 (*i)->set_height (h);
 125         }*/
 126
 127         for (vector<RecBoxInfo>::iterator i = rec_rects.begin(); i != rec_rects.end(); ++i) {
 128                 RecBoxInfo &recbox = (*i);
 129                 recbox.rectangle->property_y2() = h - 1.0;
 130         }
 131
 132         return 0;
 133 }
 134
 135 int
 136 StreamView::set_samples_per_unit (gdouble spp)
 137 {
 138         RegionViewList::iterator i;
 139
 140         if (spp < 1.0) {
 141                 return -1;
 142         }
 143
 144         _samples_per_unit = spp;
 145
 146         for (i = region_views.begin(); i != region_views.end(); ++i) {
 147                 (*i)->set_samples_per_unit (spp);
 148         }
 149
 150         for (vector<RecBoxInfo>::iterator xi = rec_rects.begin(); xi != rec_rects.end(); ++xi) {
 151                 RecBoxInfo &recbox = (*xi);
 152
 153                 gdouble xstart = _trackview.editor.frame_to_pixel ( recbox.start );
 154                 gdouble xend = _trackview.editor.frame_to_pixel ( recbox.start + recbox.length );
 155
 156                 recbox.rectangle->property_x1() = xstart;
 157                 recbox.rectangle->property_x2() = xend;
 158         }
 159
 160         return 0;
 161 }
 162
 163 void
 164 StreamView::add_region_view (Region *r)
 165 {
 166         add_region_view_internal (r, true);
 167 }
 168
 169 void
 170 StreamView::remove_region_view (Region *r)
 171 {
 172         ENSURE_GUI_THREAD (bind (mem_fun (*this, &StreamView::remove_region_view), r));
 173
 174         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 175                 if (&((*i)->region()) == r) {
 176                         delete *i;
 177                         region_views.erase (i);
 178                         break;
 179                 }
 180         }
 181 }
 182
 183 void
 184 StreamView::remove_rec_region (Region *r)
 185 {
 186         ENSURE_GUI_THREAD(bind (mem_fun (*this, &StreamView::remove_rec_region), r));
 187
 188         if (!Gtkmm2ext::UI::instance()->caller_is_ui_thread()) {
 189                 fatal << "region deleted from non-GUI thread!" << endmsg;
 190                 /*NOTREACHED*/
 191         }
 192
 193         for (list<Region *>::iterator i = rec_regions.begin(); i != rec_regions.end(); ++i) {
 194                 if (*i == r) {
 195                         rec_regions.erase (i);
 196                         break;
 197                 }
 198         }
 199 }
 200
 201 void
 202 StreamView::undisplay_diskstream ()
 203 {
 204         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 205                 delete *i;
 206         }
 207
 208         region_views.clear();
 209 }
 210
 211 void
 212 StreamView::display_diskstream (Diskstream *ds)
 213 {
 214         playlist_change_connection.disconnect();
 215         playlist_changed (ds);
 216         playlist_change_connection = ds->PlaylistChanged.connect (bind (mem_fun (*this, &StreamView::playlist_changed), ds));
 217 }
 218
 219 void
 220 StreamView::playlist_modified ()
 221 {
 222         ENSURE_GUI_THREAD (mem_fun (*this, &StreamView::playlist_modified));
 223
 224         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 225                 region_layered (*i);
 226         }
 227 }
 228
 229 void
 230 StreamView::playlist_changed (Diskstream *ds)
 231 {
 232         ENSURE_GUI_THREAD (bind (mem_fun (*this, &StreamView::playlist_changed), ds));
 233
 234         /* disconnect from old playlist */
 235
 236         for (vector<sigc::connection>::iterator i = playlist_connections.begin(); i != playlist_connections.end(); ++i) {
 237                 (*i).disconnect();
 238         }
 239
 240         playlist_connections.clear();
 241         undisplay_diskstream ();
 242
 243         /* draw it */
 244
 245         redisplay_diskstream ();
 246
 247         /* catch changes */
 248
 249         playlist_connections.push_back (ds->playlist()->RegionAdded.connect (mem_fun (*this, &StreamView::add_region_view)));
 250         playlist_connections.push_back (ds->playlist()->RegionRemoved.connect (mem_fun (*this, &StreamView::remove_region_view)));
 251         playlist_connections.push_back (ds->playlist()->StateChanged.connect (mem_fun (*this, &StreamView::playlist_state_changed)));
 252         playlist_connections.push_back (ds->playlist()->Modified.connect (mem_fun (*this, &StreamView::playlist_modified)));
 253 }
 254
 255 void
 256 StreamView::playlist_state_changed (Change ignored)
 257 {
 258         ENSURE_GUI_THREAD (bind (mem_fun (*this, &StreamView::playlist_state_changed), ignored));
 259
 260         redisplay_diskstream ();
 261 }
 262
 263 void
 264 StreamView::diskstream_changed (void *src_ignored)
 265 {
 266         Track *t;
 267
 268         if ((t = _trackview.track()) != 0) {
 269                 Diskstream& ds = t->diskstream();
 270                 /* XXX grrr: when will SigC++ allow me to bind references? */
 271                 Gtkmm2ext::UI::instance()->call_slot (bind (mem_fun (*this, &StreamView::display_diskstream), &ds));
 272         } else {
 273                 Gtkmm2ext::UI::instance()->call_slot (mem_fun (*this, &StreamView::undisplay_diskstream));
 274         }
 275 }
 276
 277 void
 278 StreamView::apply_color (Gdk::Color& color, ColorTarget target)
 279
 280 {
 281         list<RegionView *>::iterator i;
 282
 283         switch (target) {
 284         case RegionColor:
 285                 region_color = color;
 286                 for (i = region_views.begin(); i != region_views.end(); ++i) {
 287                         (*i)->set_color (region_color);
 288                 }
 289                 // stream_base_color = RGBA_TO_UINT (color.red/256, color.green/256, color.blue/256, 255);
 290                 // gnome_canvas_item_set (canvas_rect, "fill_color_rgba", stream_base_color, NULL);
 291                 break;
 292
 293         case StreamBaseColor:
 294                 // stream_base_color = RGBA_TO_UINT (color.red/256, color.green/256, color.blue/256, 255);
 295                 // gnome_canvas_item_set (canvas_rect, "fill_color_rgba", stream_base_color, NULL);
 296                 break;
 297         }
 298 }
 299
 300 void
 301 StreamView::region_layered (RegionView* rv)
 302 {
 303         rv->get_canvas_group()->lower_to_bottom();
 304
 305         /* don't ever leave it at the bottom, since then it doesn't
 306            get events - the  parent group does instead ...
 307         */
 308
 309         rv->get_canvas_group()->raise (rv->region().layer() + 1);
 310 }
 311
 312 void
 313 StreamView::rec_enable_changed (void *src)
 314 {
 315         Gtkmm2ext::UI::instance()->call_slot (mem_fun (*this, &StreamView::setup_rec_box));
 316 }
 317
 318 void
 319 StreamView::sess_rec_enable_changed ()
 320 {
 321         Gtkmm2ext::UI::instance()->call_slot (mem_fun (*this, &StreamView::setup_rec_box));
 322 }
 323
 324 void
 325 StreamView::transport_changed()
 326 {
 327         Gtkmm2ext::UI::instance()->call_slot (mem_fun (*this, &StreamView::setup_rec_box));
 328 }
 329
 330 void
 331 StreamView::update_rec_box ()
 332 {
 333         if (rec_active && rec_rects.size() > 0) {
 334                 /* only update the last box */
 335                 RecBoxInfo & rect = rec_rects.back();
 336                 jack_nframes_t at = _trackview.get_diskstream()->current_capture_end();
 337                 double xstart;
 338                 double xend;
 339
 340                 switch (_trackview.track()->mode()) {
 341                 case Normal:
 342                         rect.length = at - rect.start;
 343                         xstart = _trackview.editor.frame_to_pixel (rect.start);
 344                         xend = _trackview.editor.frame_to_pixel (at);
 345                         break;
 346
 347                 case Destructive:
 348                         rect.length = 2;
 349                         xstart = _trackview.editor.frame_to_pixel (_trackview.get_diskstream()->current_capture_start());
 350                         xend = _trackview.editor.frame_to_pixel (at);
 351                         break;
 352                 }
 353
 354                 rect.rectangle->property_x1() = xstart;
 355                 rect.rectangle->property_x2() = xend;
 356         }
 357 }
 358
 359 RegionView*
 360 StreamView::find_view (const Region& region)
 361 {
 362         for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 363
 364                 if (&(*i)->region() == &region) {
 365                         return *i;
 366                 }
 367         }
 368         return 0;
 369 }
 370
 371 void
 372 StreamView::foreach_regionview (sigc::slot<void,RegionView*> slot)
 373 {
 374         for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 375                 slot (*i);
 376         }
 377 }
 378
 379 void
 380 StreamView::set_selected_regionviews (RegionSelection& regions)
 381 {
 382         bool selected;
 383
 384         // cerr << _trackview.name() << " (selected = " << regions.size() << ")" << endl;
 385         for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 386
 387                 selected = false;
 388
 389                 for (RegionSelection::iterator ii = regions.begin(); ii != regions.end(); ++ii) {
 390                         if (*i == *ii) {
 391                                 selected = true;
 392                         }
 393                 }
 394
 395                 // cerr << "\tregion " << (*i)->region().name() << " selected = " << selected << endl;
 396                 (*i)->set_selected (selected);
 397         }
 398 }
 399
 400 void
 401 StreamView::get_selectables (jack_nframes_t start, jack_nframes_t end, list<Selectable*>& results)
 402 {
 403         for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 404                 if ((*i)->region().coverage(start, end) != OverlapNone) {
 405                         results.push_back (*i);
 406                 }
 407         }
 408 }
 409
 410 void
 411 StreamView::get_inverted_selectables (Selection& sel, list<Selectable*>& results)
 412 {
 413         for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 414                 if (!sel.regions.contains (*i)) {
 415                         results.push_back (*i);
 416                 }
 417         }
 418 }
 419