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 "region_view.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         , canvas_group(new ArdourCanvas::Group(*_trackview.canvas_display))
  52         , canvas_rect(new ArdourCanvas::SimpleRect (*canvas_group))
  53         , _samples_per_unit(_trackview.editor.get_current_zoom())
  54         , rec_updating(false)
  55         , rec_active(false)
  56         , use_rec_regions(tv.editor.show_waveforms_recording())
  57         , region_color(_trackview.color())
  58         , stream_base_color(0xFFFFFFFF)
  59         , last_rec_data_frame(0)
  60 {
  61         /* set_position() will position the group */
  62
  63         canvas_rect = new ArdourCanvas::SimpleRect (*canvas_group);
  64         canvas_rect->property_x1() = 0.0;
  65         canvas_rect->property_y1() = 0.0;
  66         canvas_rect->property_x2() = 1000000.0;
  67         canvas_rect->property_y2() = (double) tv.height;
  68         canvas_rect->property_outline_what() = (guint32) (0x1|0x2|0x8);  // outline ends and bottom
  69         // (Fill/Outline colours set in derived classes)
  70
  71         canvas_rect->signal_event().connect (bind (mem_fun (_trackview.editor, &PublicEditor::canvas_stream_view_event), canvas_rect, &_trackview));
  72
  73         if (_trackview.is_track()) {
  74                 _trackview.track()->DiskstreamChanged.connect (mem_fun (*this, &StreamView::diskstream_changed));
  75                 _trackview.session().TransportStateChange.connect (mem_fun (*this, &StreamView::transport_changed));
  76                 _trackview.get_diskstream()->RecordEnableChanged.connect (mem_fun (*this, &StreamView::rec_enable_changed));
  77                 _trackview.session().RecordStateChanged.connect (mem_fun (*this, &StreamView::sess_rec_enable_changed));
  78         }
  79
  80         ColorChanged.connect (mem_fun (*this, &StreamView::color_handler));
  81 }
  82
  83 StreamView::~StreamView ()
  84 {
  85         undisplay_diskstream ();
  86         delete canvas_group;
  87 }
  88
  89 void
  90 StreamView::attach ()
  91 {
  92         if (_trackview.is_track()) {
  93                 display_diskstream (_trackview.get_diskstream());
  94         }
  95 }
  96
  97 int
  98 StreamView::set_position (gdouble x, gdouble y)
  99
 100 {
 101         canvas_group->property_x() = x;
 102         canvas_group->property_y() = y;
 103         return 0;
 104 }
 105
 106 int
 107 StreamView::set_height (gdouble h)
 108 {
 109         /* limit the values to something sane-ish */
 110
 111         if (h < 10.0 || h > 1000.0) {
 112                 return -1;
 113         }
 114
 115         canvas_rect->property_y2() = h;
 116
 117         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 118                 (*i)->set_height (h);
 119         }
 120
 121         /*for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 122                 (*i)->set_height (h);
 123         }*/
 124
 125         for (vector<RecBoxInfo>::iterator i = rec_rects.begin(); i != rec_rects.end(); ++i) {
 126                 RecBoxInfo &recbox = (*i);
 127                 recbox.rectangle->property_y2() = h - 1.0;
 128         }
 129
 130         return 0;
 131 }
 132
 133 int
 134 StreamView::set_samples_per_unit (gdouble spp)
 135 {
 136         RegionViewList::iterator i;
 137
 138         if (spp < 1.0) {
 139                 return -1;
 140         }
 141
 142         _samples_per_unit = spp;
 143
 144         for (i = region_views.begin(); i != region_views.end(); ++i) {
 145                 (*i)->set_samples_per_unit (spp);
 146         }
 147
 148         for (vector<RecBoxInfo>::iterator xi = rec_rects.begin(); xi != rec_rects.end(); ++xi) {
 149                 RecBoxInfo &recbox = (*xi);
 150
 151                 gdouble xstart = _trackview.editor.frame_to_pixel ( recbox.start );
 152                 gdouble xend = _trackview.editor.frame_to_pixel ( recbox.start + recbox.length );
 153
 154                 recbox.rectangle->property_x1() = xstart;
 155                 recbox.rectangle->property_x2() = xend;
 156         }
 157
 158         return 0;
 159 }
 160
 161 void
 162 StreamView::add_region_view (boost::shared_ptr<Region> r)
 163 {
 164         add_region_view_internal (r, true);
 165 }
 166
 167 void
 168 StreamView::remove_region_view (boost::shared_ptr<Region> r)
 169 {
 170         ENSURE_GUI_THREAD (bind (mem_fun (*this, &StreamView::remove_region_view), r));
 171
 172         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 173                 if (((*i)->region()) == r) {
 174                         delete *i;
 175                         region_views.erase (i);
 176                         break;
 177                 }
 178         }
 179 }
 180
 181 #if 0
 182 (unused)
 183 void
 184 StreamView::remove_rec_region (boost::shared_ptr<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<boost::shared_ptr<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 #endif
 201
 202 void
 203 StreamView::undisplay_diskstream ()
 204 {
 205         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 206                 delete *i;
 207         }
 208
 209         region_views.clear();
 210 }
 211
 212 void
 213 StreamView::display_diskstream (boost::shared_ptr<Diskstream> ds)
 214 {
 215         playlist_change_connection.disconnect();
 216         playlist_changed (ds);
 217         playlist_change_connection = ds->PlaylistChanged.connect (bind (mem_fun (*this, &StreamView::playlist_changed), ds));
 218 }
 219
 220 void
 221 StreamView::playlist_modified ()
 222 {
 223         ENSURE_GUI_THREAD (mem_fun (*this, &StreamView::playlist_modified));
 224
 225         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 226                 region_layered (*i);
 227         }
 228 }
 229
 230 void
 231 StreamView::playlist_changed (boost::shared_ptr<Diskstream> ds)
 232 {
 233         ENSURE_GUI_THREAD (bind (mem_fun (*this, &StreamView::playlist_changed), ds));
 234
 235         /* disconnect from old playlist */
 236
 237         for (vector<sigc::connection>::iterator i = playlist_connections.begin(); i != playlist_connections.end(); ++i) {
 238                 (*i).disconnect();
 239         }
 240
 241         playlist_connections.clear();
 242         undisplay_diskstream ();
 243
 244         /* draw it */
 245
 246         redisplay_diskstream ();
 247
 248         /* catch changes */
 249
 250         playlist_connections.push_back (ds->playlist()->RegionAdded.connect (mem_fun (*this, &StreamView::add_region_view)));
 251         playlist_connections.push_back (ds->playlist()->RegionRemoved.connect (mem_fun (*this, &StreamView::remove_region_view)));
 252         playlist_connections.push_back (ds->playlist()->StateChanged.connect (mem_fun (*this, &StreamView::playlist_state_changed)));
 253         playlist_connections.push_back (ds->playlist()->Modified.connect (mem_fun (*this, &StreamView::playlist_modified)));
 254 }
 255
 256 void
 257 StreamView::playlist_state_changed (Change ignored)
 258 {
 259         ENSURE_GUI_THREAD (bind (mem_fun (*this, &StreamView::playlist_state_changed), ignored));
 260
 261         redisplay_diskstream ();
 262 }
 263
 264 void
 265 StreamView::diskstream_changed ()
 266 {
 267         Track *t;
 268
 269         if ((t = _trackview.track()) != 0) {
 270                 Gtkmm2ext::UI::instance()->call_slot (bind (mem_fun (*this, &StreamView::display_diskstream), t->diskstream()));
 271         } else {
 272                 Gtkmm2ext::UI::instance()->call_slot (mem_fun (*this, &StreamView::undisplay_diskstream));
 273         }
 274 }
 275
 276 void
 277 StreamView::apply_color (Gdk::Color& color, ColorTarget target)
 278
 279 {
 280         list<RegionView *>::iterator i;
 281
 282         switch (target) {
 283         case RegionColor:
 284                 region_color = color;
 285                 for (i = region_views.begin(); i != region_views.end(); ++i) {
 286                         (*i)->set_color (region_color);
 287                 }
 288                 break;
 289
 290         case StreamBaseColor:
 291                 stream_base_color = RGBA_TO_UINT (
 292                         color.get_red_p(), color.get_green_p(), color.get_blue_p(), 255);
 293                 canvas_rect->property_fill_color_rgba() = stream_base_color;
 294                 break;
 295         }
 296 }
 297
 298 void
 299 StreamView::region_layered (RegionView* rv)
 300 {
 301         rv->get_canvas_group()->lower_to_bottom();
 302
 303         /* don't ever leave it at the bottom, since then it doesn't
 304            get events - the  parent group does instead ...
 305         */
 306
 307         /* this used to be + 1, but regions to the left ended up below
 308           ..something.. and couldn't receive events.  why?  good question.
 309         */
 310         rv->get_canvas_group()->raise (rv->region()->layer() + 2);
 311 }
 312
 313 void
 314 StreamView::rec_enable_changed ()
 315 {
 316         Gtkmm2ext::UI::instance()->call_slot (mem_fun (*this, &StreamView::setup_rec_box));
 317 }
 318
 319 void
 320 StreamView::sess_rec_enable_changed ()
 321 {
 322         Gtkmm2ext::UI::instance()->call_slot (mem_fun (*this, &StreamView::setup_rec_box));
 323 }
 324
 325 void
 326 StreamView::transport_changed()
 327 {
 328         Gtkmm2ext::UI::instance()->call_slot (mem_fun (*this, &StreamView::setup_rec_box));
 329 }
 330
 331 void
 332 StreamView::update_rec_box ()
 333 {
 334         if (rec_active && rec_rects.size() > 0) {
 335                 /* only update the last box */
 336                 RecBoxInfo & rect = rec_rects.back();
 337                 jack_nframes_t at = _trackview.get_diskstream()->current_capture_end();
 338                 double xstart;
 339                 double xend;
 340
 341                 switch (_trackview.track()->mode()) {
 342                 case Normal:
 343                         rect.length = at - rect.start;
 344                         xstart = _trackview.editor.frame_to_pixel (rect.start);
 345                         xend = _trackview.editor.frame_to_pixel (at);
 346                         break;
 347
 348                 case Destructive:
 349                         rect.length = 2;
 350                         xstart = _trackview.editor.frame_to_pixel (_trackview.get_diskstream()->current_capture_start());
 351                         xend = _trackview.editor.frame_to_pixel (at);
 352                         break;
 353                 }
 354
 355                 rect.rectangle->property_x1() = xstart;
 356                 rect.rectangle->property_x2() = xend;
 357         }
 358 }
 359
 360 RegionView*
 361 StreamView::find_view (boost::shared_ptr<const Region> region)
 362 {
 363         for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 364
 365                 if ((*i)->region() == region) {
 366                         return *i;
 367                 }
 368         }
 369         return 0;
 370 }
 371
 372 void
 373 StreamView::foreach_regionview (sigc::slot<void,RegionView*> slot)
 374 {
 375         for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 376                 slot (*i);
 377         }
 378 }
 379
 380 void
 381 StreamView::set_selected_regionviews (RegionSelection& regions)
 382 {
 383         bool selected;
 384
 385         // cerr << _trackview.name() << " (selected = " << regions.size() << ")" << endl;
 386         for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 387
 388                 selected = false;
 389
 390                 for (RegionSelection::iterator ii = regions.begin(); ii != regions.end(); ++ii) {
 391                         if (*i == *ii) {
 392                                 selected = true;
 393                         }
 394                 }
 395
 396                 // cerr << "\tregion " << (*i)->region().name() << " selected = " << selected << endl;
 397                 (*i)->set_selected (selected);
 398         }
 399 }
 400
 401 void
 402 StreamView::get_selectables (jack_nframes_t start, jack_nframes_t end, list<Selectable*>& results)
 403 {
 404         for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 405                 if ((*i)->region()->coverage(start, end) != OverlapNone) {
 406                         results.push_back (*i);
 407                 }
 408         }
 409 }
 410
 411 void
 412 StreamView::get_inverted_selectables (Selection& sel, list<Selectable*>& results)
 413 {
 414         for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 415                 if (!sel.regions.contains (*i)) {
 416                         results.push_back (*i);
 417                 }
 418         }
 419 }
 420