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 {
  60         /* set_position() will position the group */
  61
  62         canvas_rect = new ArdourCanvas::SimpleRect (*canvas_group);
  63         canvas_rect->property_x1() = 0.0;
  64         canvas_rect->property_y1() = 0.0;
  65         canvas_rect->property_x2() = 1000000.0;
  66         canvas_rect->property_y2() = (double) tv.height;
  67         canvas_rect->property_outline_what() = (guint32) (0x1|0x2|0x8);  // outline ends and bottom
  68         // (Fill/Outline colours set in derived classes)
  69
  70         canvas_rect->signal_event().connect (bind (mem_fun (_trackview.editor, &PublicEditor::canvas_stream_view_event), canvas_rect, &_trackview));
  71
  72         if (_trackview.is_track()) {
  73                 _trackview.track()->DiskstreamChanged.connect (mem_fun (*this, &StreamView::diskstream_changed));
  74                 _trackview.session().TransportStateChange.connect (mem_fun (*this, &StreamView::transport_changed));
  75                 _trackview.get_diskstream()->RecordEnableChanged.connect (mem_fun (*this, &StreamView::rec_enable_changed));
  76                 _trackview.session().RecordStateChanged.connect (mem_fun (*this, &StreamView::sess_rec_enable_changed));
  77         }
  78
  79         ColorChanged.connect (mem_fun (*this, &StreamView::color_handler));
  80 }
  81
  82 StreamView::~StreamView ()
  83 {
  84         undisplay_diskstream ();
  85         delete canvas_group;
  86 }
  87
  88 void
  89 StreamView::attach ()
  90 {
  91         if (_trackview.is_track()) {
  92                 display_diskstream (_trackview.get_diskstream());
  93         }
  94 }
  95
  96 int
  97 StreamView::set_position (gdouble x, gdouble y)
  98
  99 {
 100         canvas_group->property_x() = x;
 101         canvas_group->property_y() = y;
 102         return 0;
 103 }
 104
 105 int
 106 StreamView::set_height (gdouble h)
 107 {
 108         /* limit the values to something sane-ish */
 109
 110         if (h < 10.0 || h > 1000.0) {
 111                 return -1;
 112         }
 113
 114         canvas_rect->property_y2() = h;
 115
 116         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 117                 (*i)->set_height (h);
 118         }
 119
 120         /*for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 121                 (*i)->set_height (h);
 122         }*/
 123
 124         for (vector<RecBoxInfo>::iterator i = rec_rects.begin(); i != rec_rects.end(); ++i) {
 125                 RecBoxInfo &recbox = (*i);
 126                 recbox.rectangle->property_y2() = h - 1.0;
 127         }
 128
 129         return 0;
 130 }
 131
 132 int
 133 StreamView::set_samples_per_unit (gdouble spp)
 134 {
 135         RegionViewList::iterator i;
 136
 137         if (spp < 1.0) {
 138                 return -1;
 139         }
 140
 141         _samples_per_unit = spp;
 142
 143         for (i = region_views.begin(); i != region_views.end(); ++i) {
 144                 (*i)->set_samples_per_unit (spp);
 145         }
 146
 147         for (vector<RecBoxInfo>::iterator xi = rec_rects.begin(); xi != rec_rects.end(); ++xi) {
 148                 RecBoxInfo &recbox = (*xi);
 149
 150                 gdouble xstart = _trackview.editor.frame_to_pixel ( recbox.start );
 151                 gdouble xend = _trackview.editor.frame_to_pixel ( recbox.start + recbox.length );
 152
 153                 recbox.rectangle->property_x1() = xstart;
 154                 recbox.rectangle->property_x2() = xend;
 155         }
 156
 157         return 0;
 158 }
 159
 160 void
 161 StreamView::add_region_view (boost::shared_ptr<Region> r)
 162 {
 163         add_region_view_internal (r, true);
 164 }
 165
 166 void
 167 StreamView::remove_region_view (boost::weak_ptr<Region> weak_r)
 168 {
 169         ENSURE_GUI_THREAD (bind (mem_fun (*this, &StreamView::remove_region_view), weak_r));
 170
 171         boost::shared_ptr<Region> r (weak_r.lock());
 172
 173         if (!r) {
 174                 return;
 175         }
 176
 177         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 178                 if (((*i)->region()) == r) {
 179                         delete *i;
 180                         region_views.erase (i);
 181                         break;
 182                 }
 183         }
 184 }
 185
 186 void
 187 StreamView::undisplay_diskstream ()
 188 {
 189         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 190                 delete *i;
 191         }
 192
 193         region_views.clear();
 194 }
 195
 196 void
 197 StreamView::display_diskstream (boost::shared_ptr<Diskstream> ds)
 198 {
 199         playlist_change_connection.disconnect();
 200         playlist_changed (ds);
 201         playlist_change_connection = ds->PlaylistChanged.connect (bind (mem_fun (*this, &StreamView::playlist_changed), ds));
 202 }
 203
 204 void
 205 StreamView::playlist_modified ()
 206 {
 207         ENSURE_GUI_THREAD (mem_fun (*this, &StreamView::playlist_modified));
 208
 209         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 210                 region_layered (*i);
 211         }
 212 }
 213
 214 void
 215 StreamView::playlist_changed (boost::shared_ptr<Diskstream> ds)
 216 {
 217         ENSURE_GUI_THREAD (bind (mem_fun (*this, &StreamView::playlist_changed), ds));
 218
 219         /* disconnect from old playlist */
 220
 221         for (vector<sigc::connection>::iterator i = playlist_connections.begin(); i != playlist_connections.end(); ++i) {
 222                 (*i).disconnect();
 223         }
 224
 225         playlist_connections.clear();
 226         undisplay_diskstream ();
 227
 228         /* draw it */
 229
 230         redisplay_diskstream ();
 231
 232         /* catch changes */
 233
 234         playlist_connections.push_back (ds->playlist()->RegionAdded.connect (mem_fun (*this, &StreamView::add_region_view)));
 235         playlist_connections.push_back (ds->playlist()->RegionRemoved.connect (mem_fun (*this, &StreamView::remove_region_view)));
 236         playlist_connections.push_back (ds->playlist()->StateChanged.connect (mem_fun (*this, &StreamView::playlist_state_changed)));
 237         playlist_connections.push_back (ds->playlist()->Modified.connect (mem_fun (*this, &StreamView::playlist_modified)));
 238 }
 239
 240 void
 241 StreamView::playlist_state_changed (Change ignored)
 242 {
 243         ENSURE_GUI_THREAD (bind (mem_fun (*this, &StreamView::playlist_state_changed), ignored));
 244
 245         redisplay_diskstream ();
 246 }
 247
 248 void
 249 StreamView::diskstream_changed ()
 250 {
 251         Track *t;
 252
 253         if ((t = _trackview.track()) != 0) {
 254                 Gtkmm2ext::UI::instance()->call_slot (bind (mem_fun (*this, &StreamView::display_diskstream), t->diskstream()));
 255         } else {
 256                 Gtkmm2ext::UI::instance()->call_slot (mem_fun (*this, &StreamView::undisplay_diskstream));
 257         }
 258 }
 259
 260 void
 261 StreamView::apply_color (Gdk::Color& color, ColorTarget target)
 262
 263 {
 264         list<RegionView *>::iterator i;
 265
 266         switch (target) {
 267         case RegionColor:
 268                 region_color = color;
 269                 for (i = region_views.begin(); i != region_views.end(); ++i) {
 270                         (*i)->set_color (region_color);
 271                 }
 272                 break;
 273
 274         case StreamBaseColor:
 275                 stream_base_color = RGBA_TO_UINT (
 276                         color.get_red_p(), color.get_green_p(), color.get_blue_p(), 255);
 277                 canvas_rect->property_fill_color_rgba() = stream_base_color;
 278                 break;
 279         }
 280 }
 281
 282 void
 283 StreamView::region_layered (RegionView* rv)
 284 {
 285         rv->get_canvas_group()->lower_to_bottom();
 286
 287         /* don't ever leave it at the bottom, since then it doesn't
 288            get events - the  parent group does instead ...
 289         */
 290
 291         /* this used to be + 1, but regions to the left ended up below
 292           ..something.. and couldn't receive events.  why?  good question.
 293         */
 294         rv->get_canvas_group()->raise (rv->region()->layer() + 2);
 295 }
 296
 297 void
 298 StreamView::rec_enable_changed ()
 299 {
 300         Gtkmm2ext::UI::instance()->call_slot (mem_fun (*this, &StreamView::setup_rec_box));
 301 }
 302
 303 void
 304 StreamView::sess_rec_enable_changed ()
 305 {
 306         Gtkmm2ext::UI::instance()->call_slot (mem_fun (*this, &StreamView::setup_rec_box));
 307 }
 308
 309 void
 310 StreamView::transport_changed()
 311 {
 312         Gtkmm2ext::UI::instance()->call_slot (mem_fun (*this, &StreamView::setup_rec_box));
 313 }
 314
 315 void
 316 StreamView::update_rec_box ()
 317 {
 318         if (rec_active && rec_rects.size() > 0) {
 319                 /* only update the last box */
 320                 RecBoxInfo & rect = rec_rects.back();
 321                 nframes_t at = _trackview.get_diskstream()->current_capture_end();
 322                 double xstart;
 323                 double xend;
 324
 325                 switch (_trackview.track()->mode()) {
 326                 case Normal:
 327                         rect.length = at - rect.start;
 328                         xstart = _trackview.editor.frame_to_pixel (rect.start);
 329                         xend = _trackview.editor.frame_to_pixel (at);
 330                         break;
 331
 332                 case Destructive:
 333                         rect.length = 2;
 334                         xstart = _trackview.editor.frame_to_pixel (_trackview.get_diskstream()->current_capture_start());
 335                         xend = _trackview.editor.frame_to_pixel (at);
 336                         break;
 337                 }
 338
 339                 rect.rectangle->property_x1() = xstart;
 340                 rect.rectangle->property_x2() = xend;
 341         }
 342 }
 343
 344 RegionView*
 345 StreamView::find_view (boost::shared_ptr<const Region> region)
 346 {
 347         for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 348
 349                 if ((*i)->region() == region) {
 350                         return *i;
 351                 }
 352         }
 353         return 0;
 354 }
 355
 356 void
 357 StreamView::foreach_regionview (sigc::slot<void,RegionView*> slot)
 358 {
 359         for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 360                 slot (*i);
 361         }
 362 }
 363
 364 void
 365 StreamView::set_selected_regionviews (RegionSelection& regions)
 366 {
 367         bool selected;
 368
 369         // cerr << _trackview.name() << " (selected = " << regions.size() << ")" << endl;
 370         for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 371
 372                 selected = false;
 373
 374                 for (RegionSelection::iterator ii = regions.begin(); ii != regions.end(); ++ii) {
 375                         if (*i == *ii) {
 376                                 selected = true;
 377                         }
 378                 }
 379
 380                 // cerr << "\tregion " << (*i)->region().name() << " selected = " << selected << endl;
 381                 (*i)->set_selected (selected);
 382         }
 383 }
 384
 385 void
 386 StreamView::get_selectables (nframes_t start, nframes_t end, list<Selectable*>& results)
 387 {
 388         for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 389                 if ((*i)->region()->coverage(start, end) != OverlapNone) {
 390                         results.push_back (*i);
 391                 }
 392         }
 393 }
 394
 395 void
 396 StreamView::get_inverted_selectables (Selection& sel, list<Selectable*>& results)
 397 {
 398         for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 399                 if (!sel.regions.contains (*i)) {
 400                         results.push_back (*i);
 401                 }
 402         }
 403 }
 404