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 (Region *r)
 163 {
 164         add_region_view_internal (r, true);
 165 }
 166
 167 void
 168 StreamView::remove_region_view (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 void
 182 StreamView::remove_rec_region (Region *r)
 183 {
 184         ENSURE_GUI_THREAD(bind (mem_fun (*this, &StreamView::remove_rec_region), r));
 185
 186         if (!Gtkmm2ext::UI::instance()->caller_is_ui_thread()) {
 187                 fatal << "region deleted from non-GUI thread!" << endmsg;
 188                 /*NOTREACHED*/
 189         }
 190
 191         for (list<Region *>::iterator i = rec_regions.begin(); i != rec_regions.end(); ++i) {
 192                 if (*i == r) {
 193                         rec_regions.erase (i);
 194                         break;
 195                 }
 196         }
 197 }
 198
 199 void
 200 StreamView::undisplay_diskstream ()
 201 {
 202         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 203                 delete *i;
 204         }
 205
 206         region_views.clear();
 207 }
 208
 209 void
 210 StreamView::display_diskstream (boost::shared_ptr<Diskstream> ds)
 211 {
 212         playlist_change_connection.disconnect();
 213         playlist_changed (ds);
 214         playlist_change_connection = ds->PlaylistChanged.connect (bind (mem_fun (*this, &StreamView::playlist_changed), ds));
 215 }
 216
 217 void
 218 StreamView::playlist_modified ()
 219 {
 220         ENSURE_GUI_THREAD (mem_fun (*this, &StreamView::playlist_modified));
 221
 222         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 223                 region_layered (*i);
 224         }
 225 }
 226
 227 void
 228 StreamView::playlist_changed (boost::shared_ptr<Diskstream> ds)
 229 {
 230         ENSURE_GUI_THREAD (bind (mem_fun (*this, &StreamView::playlist_changed), ds));
 231
 232         /* disconnect from old playlist */
 233
 234         for (vector<sigc::connection>::iterator i = playlist_connections.begin(); i != playlist_connections.end(); ++i) {
 235                 (*i).disconnect();
 236         }
 237
 238         playlist_connections.clear();
 239         undisplay_diskstream ();
 240
 241         /* draw it */
 242
 243         redisplay_diskstream ();
 244
 245         /* catch changes */
 246
 247         playlist_connections.push_back (ds->playlist()->RegionAdded.connect (mem_fun (*this, &StreamView::add_region_view)));
 248         playlist_connections.push_back (ds->playlist()->RegionRemoved.connect (mem_fun (*this, &StreamView::remove_region_view)));
 249         playlist_connections.push_back (ds->playlist()->StateChanged.connect (mem_fun (*this, &StreamView::playlist_state_changed)));
 250         playlist_connections.push_back (ds->playlist()->Modified.connect (mem_fun (*this, &StreamView::playlist_modified)));
 251 }
 252
 253 void
 254 StreamView::playlist_state_changed (Change ignored)
 255 {
 256         ENSURE_GUI_THREAD (bind (mem_fun (*this, &StreamView::playlist_state_changed), ignored));
 257
 258         redisplay_diskstream ();
 259 }
 260
 261 void
 262 StreamView::diskstream_changed ()
 263 {
 264         Track *t;
 265
 266         if ((t = _trackview.track()) != 0) {
 267                 Gtkmm2ext::UI::instance()->call_slot (bind (mem_fun (*this, &StreamView::display_diskstream), t->diskstream()));
 268         } else {
 269                 Gtkmm2ext::UI::instance()->call_slot (mem_fun (*this, &StreamView::undisplay_diskstream));
 270         }
 271 }
 272
 273 void
 274 StreamView::apply_color (Gdk::Color& color, ColorTarget target)
 275
 276 {
 277         list<RegionView *>::iterator i;
 278
 279         switch (target) {
 280         case RegionColor:
 281                 region_color = color;
 282                 for (i = region_views.begin(); i != region_views.end(); ++i) {
 283                         (*i)->set_color (region_color);
 284                 }
 285                 break;
 286
 287         case StreamBaseColor:
 288                 stream_base_color = RGBA_TO_UINT (
 289                         color.get_red_p(), color.get_green_p(), color.get_blue_p(), 255);
 290                 canvas_rect->property_fill_color_rgba() = stream_base_color;
 291                 break;
 292         }
 293 }
 294
 295 void
 296 StreamView::region_layered (RegionView* rv)
 297 {
 298         rv->get_canvas_group()->lower_to_bottom();
 299
 300         /* don't ever leave it at the bottom, since then it doesn't
 301            get events - the  parent group does instead ...
 302         */
 303
 304         /* this used to be + 1, but regions to the left ended up below
 305           ..something.. and couldn't receive events.  why?  good question.
 306         */
 307         rv->get_canvas_group()->raise (rv->region().layer() + 2);
 308 }
 309
 310 void
 311 StreamView::rec_enable_changed ()
 312 {
 313         Gtkmm2ext::UI::instance()->call_slot (mem_fun (*this, &StreamView::setup_rec_box));
 314 }
 315
 316 void
 317 StreamView::sess_rec_enable_changed ()
 318 {
 319         Gtkmm2ext::UI::instance()->call_slot (mem_fun (*this, &StreamView::setup_rec_box));
 320 }
 321
 322 void
 323 StreamView::transport_changed()
 324 {
 325         Gtkmm2ext::UI::instance()->call_slot (mem_fun (*this, &StreamView::setup_rec_box));
 326 }
 327
 328 void
 329 StreamView::update_rec_box ()
 330 {
 331         if (rec_active && rec_rects.size() > 0) {
 332                 /* only update the last box */
 333                 RecBoxInfo & rect = rec_rects.back();
 334                 jack_nframes_t at = _trackview.get_diskstream()->current_capture_end();
 335                 double xstart;
 336                 double xend;
 337
 338                 switch (_trackview.track()->mode()) {
 339                 case Normal:
 340                         rect.length = at - rect.start;
 341                         xstart = _trackview.editor.frame_to_pixel (rect.start);
 342                         xend = _trackview.editor.frame_to_pixel (at);
 343                         break;
 344
 345                 case Destructive:
 346                         rect.length = 2;
 347                         xstart = _trackview.editor.frame_to_pixel (_trackview.get_diskstream()->current_capture_start());
 348                         xend = _trackview.editor.frame_to_pixel (at);
 349                         break;
 350                 }
 351
 352                 rect.rectangle->property_x1() = xstart;
 353                 rect.rectangle->property_x2() = xend;
 354         }
 355 }
 356
 357 RegionView*
 358 StreamView::find_view (const Region& region)
 359 {
 360         for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 361
 362                 if (&(*i)->region() == &region) {
 363                         return *i;
 364                 }
 365         }
 366         return 0;
 367 }
 368
 369 void
 370 StreamView::foreach_regionview (sigc::slot<void,RegionView*> slot)
 371 {
 372         for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 373                 slot (*i);
 374         }
 375 }
 376
 377 void
 378 StreamView::set_selected_regionviews (RegionSelection& regions)
 379 {
 380         bool selected;
 381
 382         // cerr << _trackview.name() << " (selected = " << regions.size() << ")" << endl;
 383         for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 384
 385                 selected = false;
 386
 387                 for (RegionSelection::iterator ii = regions.begin(); ii != regions.end(); ++ii) {
 388                         if (*i == *ii) {
 389                                 selected = true;
 390                         }
 391                 }
 392
 393                 // cerr << "\tregion " << (*i)->region().name() << " selected = " << selected << endl;
 394                 (*i)->set_selected (selected);
 395         }
 396 }
 397
 398 void
 399 StreamView::get_selectables (jack_nframes_t start, jack_nframes_t end, list<Selectable*>& results)
 400 {
 401         for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 402                 if ((*i)->region().coverage(start, end) != OverlapNone) {
 403                         results.push_back (*i);
 404                 }
 405         }
 406 }
 407
 408 void
 409 StreamView::get_inverted_selectables (Selection& sel, list<Selectable*>& results)
 410 {
 411         for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 412                 if (!sel.regions.contains (*i)) {
 413                         results.push_back (*i);
 414                 }
 415         }
 416 }
 417