Robin Gareus
6b3a8915f3
This cleans up a lot of false-positives in static analysis and also helps compilers to optimize code paths in general. (tagging the fatal stingstream operator as ‘noreturn’ is far less trivial)
694 lines
17 KiB
C++
694 lines
17 KiB
C++
/*
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Copyright (C) 2001, 2006 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <cmath>
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#include <gtkmm.h>
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#include <gtkmm2ext/gtk_ui.h>
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#include <gtkmm2ext/utils.h>
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#include "ardour/playlist.h"
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#include "ardour/region.h"
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#include "ardour/track.h"
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#include "ardour/session.h"
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#include "pbd/compose.h"
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#include "canvas/rectangle.h"
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#include "canvas/debug.h"
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#include "streamview.h"
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#include "global_signals.h"
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#include "region_view.h"
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#include "route_time_axis.h"
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#include "region_selection.h"
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#include "selection.h"
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#include "public_editor.h"
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#include "ardour_ui.h"
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#include "rgb_macros.h"
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#include "gui_thread.h"
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#include "utils.h"
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#include "i18n.h"
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using namespace std;
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using namespace ARDOUR;
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using namespace ARDOUR_UI_UTILS;
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using namespace PBD;
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using namespace Editing;
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StreamView::StreamView (RouteTimeAxisView& tv, ArdourCanvas::Container* canvas_group)
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: _trackview (tv)
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, _canvas_group (canvas_group ? canvas_group : new ArdourCanvas::Container (_trackview.canvas_display()))
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, _samples_per_pixel (_trackview.editor().get_current_zoom ())
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, rec_updating(false)
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, rec_active(false)
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, stream_base_color(0xFFFFFFFF)
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, _layers (1)
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, _layer_display (Overlaid)
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, height (tv.height)
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, last_rec_data_frame(0)
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{
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CANVAS_DEBUG_NAME (_canvas_group, string_compose ("SV canvas group %1", _trackview.name()));
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/* set_position() will position the group */
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canvas_rect = new ArdourCanvas::Rectangle (_canvas_group);
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CANVAS_DEBUG_NAME (canvas_rect, string_compose ("SV canvas rectangle %1", _trackview.name()));
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canvas_rect->set (ArdourCanvas::Rect (0, 0, ArdourCanvas::COORD_MAX, tv.current_height ()));
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canvas_rect->set_outline (false);
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canvas_rect->set_fill (true);
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canvas_rect->Event.connect (sigc::bind (sigc::mem_fun (_trackview.editor(), &PublicEditor::canvas_stream_view_event), canvas_rect, &_trackview));
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if (_trackview.is_track()) {
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_trackview.track()->DiskstreamChanged.connect (*this, invalidator (*this), boost::bind (&StreamView::diskstream_changed, this), gui_context());
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_trackview.track()->RecordEnableChanged.connect (*this, invalidator (*this), boost::bind (&StreamView::rec_enable_changed, this), gui_context());
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_trackview.session()->TransportStateChange.connect (*this, invalidator (*this), boost::bind (&StreamView::transport_changed, this), gui_context());
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_trackview.session()->TransportLooped.connect (*this, invalidator (*this), boost::bind (&StreamView::transport_looped, this), gui_context());
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_trackview.session()->RecordStateChanged.connect (*this, invalidator (*this), boost::bind (&StreamView::sess_rec_enable_changed, this), gui_context());
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}
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ColorsChanged.connect (sigc::mem_fun (*this, &StreamView::color_handler));
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}
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StreamView::~StreamView ()
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{
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undisplay_track ();
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delete canvas_rect;
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}
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void
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StreamView::attach ()
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{
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if (_trackview.is_track()) {
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display_track (_trackview.track ());
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}
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}
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int
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StreamView::set_position (gdouble x, gdouble y)
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{
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_canvas_group->set_position (ArdourCanvas::Duple (x, y));
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return 0;
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}
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int
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StreamView::set_height (double h)
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{
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/* limit the values to something sane-ish */
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if (h < 10.0 || h > 1000.0) {
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return -1;
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}
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if (canvas_rect->y1() == h) {
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return 0;
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}
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height = h;
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canvas_rect->set_y1 (height);
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update_contents_height ();
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return 0;
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}
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int
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StreamView::set_samples_per_pixel (double fpp)
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{
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RegionViewList::iterator i;
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if (fpp < 1.0) {
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return -1;
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}
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_samples_per_pixel = fpp;
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for (i = region_views.begin(); i != region_views.end(); ++i) {
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(*i)->set_samples_per_pixel (fpp);
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}
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for (vector<RecBoxInfo>::iterator xi = rec_rects.begin(); xi != rec_rects.end(); ++xi) {
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RecBoxInfo &recbox = (*xi);
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ArdourCanvas::Coord const xstart = _trackview.editor().sample_to_pixel (recbox.start);
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ArdourCanvas::Coord const xend = _trackview.editor().sample_to_pixel (recbox.start + recbox.length);
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recbox.rectangle->set_x0 (xstart);
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recbox.rectangle->set_x1 (xend);
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}
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update_coverage_frames ();
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return 0;
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}
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void
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StreamView::add_region_view (boost::weak_ptr<Region> wr)
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{
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boost::shared_ptr<Region> r (wr.lock());
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if (!r) {
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return;
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}
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add_region_view_internal (r, true);
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if (_layer_display == Stacked || _layer_display == Expanded) {
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update_contents_height ();
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}
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}
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void
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StreamView::remove_region_view (boost::weak_ptr<Region> weak_r)
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{
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ENSURE_GUI_THREAD (*this, &StreamView::remove_region_view, weak_r)
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boost::shared_ptr<Region> r (weak_r.lock());
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if (!r) {
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return;
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}
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for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
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if (((*i)->region()) == r) {
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RegionView* rv = *i;
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region_views.erase (i);
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delete rv;
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break;
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}
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}
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RegionViewRemoved (); /* EMIT SIGNAL */
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}
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void
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StreamView::undisplay_track ()
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{
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for (RegionViewList::iterator i = region_views.begin(); i != region_views.end() ; ) {
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RegionViewList::iterator next = i;
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++next;
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delete *i;
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i = next;
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}
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region_views.clear();
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}
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void
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StreamView::display_track (boost::shared_ptr<Track> tr)
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{
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playlist_switched_connection.disconnect();
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playlist_switched (tr);
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tr->PlaylistChanged.connect (playlist_switched_connection, invalidator (*this), boost::bind (&StreamView::playlist_switched, this, boost::weak_ptr<Track> (tr)), gui_context());
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}
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void
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StreamView::layer_regions()
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{
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// In one traversal of the region view list:
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// - Build a list of region views sorted by layer
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// - Remove invalid views from the actual region view list
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RegionViewList copy;
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list<RegionView*>::iterator i, tmp;
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for (i = region_views.begin(); i != region_views.end(); ) {
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tmp = i;
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tmp++;
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if (!(*i)->is_valid()) {
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delete *i;
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region_views.erase (i);
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i = tmp;
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continue;
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} else {
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(*i)->enable_display(true);
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}
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if (copy.size() == 0) {
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copy.push_front((*i));
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i = tmp;
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continue;
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}
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RegionViewList::iterator k = copy.begin();
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RegionViewList::iterator l = copy.end();
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l--;
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if ((*i)->region()->layer() <= (*k)->region()->layer()) {
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copy.push_front((*i));
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i = tmp;
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continue;
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} else if ((*i)->region()->layer() >= (*l)->region()->layer()) {
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copy.push_back((*i));
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i = tmp;
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continue;
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}
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for (RegionViewList::iterator j = copy.begin(); j != copy.end(); ++j) {
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if ((*j)->region()->layer() >= (*i)->region()->layer()) {
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copy.insert(j, (*i));
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break;
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}
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}
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i = tmp;
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}
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// Fix canvas layering by raising each to the top in the sorted order.
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for (RegionViewList::iterator i = copy.begin(); i != copy.end(); ++i) {
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(*i)->get_canvas_group()->raise_to_top ();
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}
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}
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void
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StreamView::playlist_layered (boost::weak_ptr<Track> wtr)
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{
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boost::shared_ptr<Track> tr (wtr.lock());
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if (!tr) {
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return;
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}
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/* update layers count and the y positions and heights of our regions */
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if (tr->playlist()) {
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_layers = tr->playlist()->top_layer() + 1;
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}
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if (_layer_display == Stacked) {
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update_contents_height ();
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update_coverage_frames ();
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} else {
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/* layering has probably been modified. reflect this in the canvas. */
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layer_regions();
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}
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}
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void
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StreamView::playlist_switched (boost::weak_ptr<Track> wtr)
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{
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boost::shared_ptr<Track> tr (wtr.lock());
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if (!tr) {
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return;
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}
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/* disconnect from old playlist */
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playlist_connections.drop_connections ();
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undisplay_track ();
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/* draw it */
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redisplay_track ();
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/* update layers count and the y positions and heights of our regions */
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_layers = tr->playlist()->top_layer() + 1;
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update_contents_height ();
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update_coverage_frames ();
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/* catch changes */
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tr->playlist()->LayeringChanged.connect (playlist_connections, invalidator (*this), boost::bind (&StreamView::playlist_layered, this, boost::weak_ptr<Track> (tr)), gui_context());
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tr->playlist()->RegionAdded.connect (playlist_connections, invalidator (*this), boost::bind (&StreamView::add_region_view, this, _1), gui_context());
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tr->playlist()->RegionRemoved.connect (playlist_connections, invalidator (*this), boost::bind (&StreamView::remove_region_view, this, _1), gui_context());
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tr->playlist()->ContentsChanged.connect (playlist_connections, invalidator (*this), boost::bind (&StreamView::update_coverage_frames, this), gui_context());
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}
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void
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StreamView::diskstream_changed ()
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{
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boost::shared_ptr<Track> t;
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if ((t = _trackview.track()) != 0) {
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Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&StreamView::display_track, this, t));
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} else {
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Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&StreamView::undisplay_track, this));
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}
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}
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void
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StreamView::apply_color (Gdk::Color const& c, ColorTarget target)
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{
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return apply_color (gdk_color_to_rgba (c), target);
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}
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void
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StreamView::apply_color (uint32_t color, ColorTarget target)
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{
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list<RegionView *>::iterator i;
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switch (target) {
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case RegionColor:
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region_color = color;
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for (i = region_views.begin(); i != region_views.end(); ++i) {
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(*i)->set_color (region_color);
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}
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break;
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case StreamBaseColor:
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stream_base_color = color;
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canvas_rect->set_fill_color (stream_base_color);
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break;
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}
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}
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void
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StreamView::region_layered (RegionView* rv)
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{
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/* don't ever leave it at the bottom, since then it doesn't
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get events - the parent group does instead ...
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*/
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rv->get_canvas_group()->raise (rv->region()->layer());
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}
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void
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StreamView::rec_enable_changed ()
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{
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setup_rec_box ();
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}
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void
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StreamView::sess_rec_enable_changed ()
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{
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setup_rec_box ();
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}
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void
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StreamView::transport_changed()
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{
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setup_rec_box ();
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}
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void
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StreamView::transport_looped()
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{
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// to force a new rec region
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rec_active = false;
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Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&StreamView::setup_rec_box, this));
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}
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void
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StreamView::update_rec_box ()
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{
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if (rec_active && rec_rects.size() > 0) {
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/* only update the last box */
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RecBoxInfo & rect = rec_rects.back();
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framepos_t const at = _trackview.track()->current_capture_end ();
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double xstart;
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double xend;
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switch (_trackview.track()->mode()) {
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case NonLayered:
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case Normal:
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rect.length = at - rect.start;
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xstart = _trackview.editor().sample_to_pixel (rect.start);
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xend = _trackview.editor().sample_to_pixel (at);
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break;
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case Destructive:
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rect.length = 2;
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xstart = _trackview.editor().sample_to_pixel (_trackview.track()->current_capture_start());
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xend = _trackview.editor().sample_to_pixel (at);
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break;
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default:
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fatal << string_compose (_("programming error: %1"), "illegal track mode") << endmsg;
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abort(); /*NOTREACHED*/
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return;
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}
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rect.rectangle->set_x0 (xstart);
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rect.rectangle->set_x1 (xend);
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}
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}
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RegionView*
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StreamView::find_view (boost::shared_ptr<const Region> region)
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{
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for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
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if ((*i)->region() == region) {
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return *i;
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}
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}
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return 0;
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}
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uint32_t
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StreamView::num_selected_regionviews () const
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{
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uint32_t cnt = 0;
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for (list<RegionView*>::const_iterator i = region_views.begin(); i != region_views.end(); ++i) {
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if ((*i)->get_selected()) {
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++cnt;
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}
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}
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return cnt;
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}
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void
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StreamView::foreach_regionview (sigc::slot<void,RegionView*> slot)
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{
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for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
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slot (*i);
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}
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}
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void
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StreamView::foreach_selected_regionview (sigc::slot<void,RegionView*> slot)
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{
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for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
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if ((*i)->get_selected()) {
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slot (*i);
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}
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}
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}
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void
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StreamView::set_selected_regionviews (RegionSelection& regions)
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{
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bool selected;
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for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
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selected = false;
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for (RegionSelection::iterator ii = regions.begin(); ii != regions.end(); ++ii) {
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if (*i == *ii) {
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selected = true;
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break;
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}
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}
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(*i)->set_selected (selected);
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}
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}
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/** Get selectable things within a given range.
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* @param start Start time in session frames.
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* @param end End time in session frames.
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* @param top Top y range, in trackview coordinates (ie 0 is the top of the track view)
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* @param bot Bottom y range, in trackview coordinates (ie 0 is the top of the track view)
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* @param result Filled in with selectable things.
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*/
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void
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StreamView::get_selectables (framepos_t start, framepos_t end, double top, double bottom, list<Selectable*>& results)
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{
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layer_t min_layer = 0;
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layer_t max_layer = 0;
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if (_layer_display == Stacked) {
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double const c = child_height ();
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int const mi = _layers - ((bottom - _trackview.y_position()) / c);
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if (mi < 0) {
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min_layer = 0;
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} else {
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min_layer = mi;
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}
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int const ma = _layers - ((top - _trackview.y_position()) / c);
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if (ma > (int) _layers) {
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max_layer = _layers - 1;
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} else {
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max_layer = ma;
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}
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}
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for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
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bool layer_ok = true;
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if (_layer_display == Stacked) {
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layer_t const l = (*i)->region()->layer ();
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layer_ok = (min_layer <= l && l <= max_layer);
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}
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|
|
if ((*i)->region()->coverage (start, end) != Evoral::OverlapNone && layer_ok) {
|
|
results.push_back (*i);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
StreamView::get_inverted_selectables (Selection& sel, list<Selectable*>& results)
|
|
{
|
|
for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
|
|
if (!sel.regions.contains (*i)) {
|
|
results.push_back (*i);
|
|
}
|
|
}
|
|
}
|
|
|
|
/** @return height of a child region view, depending on stacked / overlaid mode */
|
|
double
|
|
StreamView::child_height () const
|
|
{
|
|
switch (_layer_display) {
|
|
case Overlaid:
|
|
return height;
|
|
case Stacked:
|
|
return height / _layers;
|
|
case Expanded:
|
|
return height / (_layers * 2 + 1);
|
|
}
|
|
|
|
abort(); /* NOTREACHED */
|
|
return height;
|
|
}
|
|
|
|
void
|
|
StreamView::update_contents_height ()
|
|
{
|
|
const double h = child_height ();
|
|
|
|
for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
|
|
switch (_layer_display) {
|
|
case Overlaid:
|
|
(*i)->set_y (0);
|
|
break;
|
|
case Stacked:
|
|
(*i)->set_y (height - ((*i)->region()->layer() + 1) * h);
|
|
break;
|
|
case Expanded:
|
|
(*i)->set_y (height - ((*i)->region()->layer() + 1) * 2 * h);
|
|
break;
|
|
}
|
|
|
|
(*i)->set_height (h);
|
|
}
|
|
|
|
for (vector<RecBoxInfo>::iterator i = rec_rects.begin(); i != rec_rects.end(); ++i) {
|
|
switch (_layer_display) {
|
|
case Overlaid:
|
|
i->rectangle->set_y1 (height);
|
|
break;
|
|
case Stacked:
|
|
case Expanded:
|
|
/* In stacked displays, the recregion is always at the top */
|
|
i->rectangle->set_y0 (0);
|
|
i->rectangle->set_y1 (h);
|
|
break;
|
|
}
|
|
}
|
|
|
|
ContentsHeightChanged (); /* EMIT SIGNAL */
|
|
}
|
|
|
|
void
|
|
StreamView::set_layer_display (LayerDisplay d)
|
|
{
|
|
_layer_display = d;
|
|
|
|
if (_layer_display == Overlaid) {
|
|
layer_regions ();
|
|
}
|
|
|
|
update_contents_height ();
|
|
update_coverage_frames ();
|
|
}
|
|
|
|
void
|
|
StreamView::update_coverage_frames ()
|
|
{
|
|
for (RegionViewList::iterator i = region_views.begin (); i != region_views.end (); ++i) {
|
|
(*i)->update_coverage_frames (_layer_display);
|
|
}
|
|
}
|
|
|
|
void
|
|
StreamView::check_record_layers (boost::shared_ptr<Region> region, framepos_t to)
|
|
{
|
|
if (_new_rec_layer_time < to) {
|
|
/* The region being recorded has overlapped the start of a top-layered region, so
|
|
`fake' a new visual layer for the recording. This is only a visual thing for now,
|
|
as the proper layering will get sorted out when the recorded region is added to
|
|
its playlist.
|
|
*/
|
|
|
|
/* Stop this happening again */
|
|
_new_rec_layer_time = max_framepos;
|
|
|
|
/* Make space in the view for the new layer */
|
|
++_layers;
|
|
|
|
/* Set the temporary region to the correct layer so that it gets drawn correctly */
|
|
region->set_layer (_layers - 1);
|
|
|
|
/* and reset the view */
|
|
update_contents_height ();
|
|
}
|
|
}
|
|
|
|
void
|
|
StreamView::setup_new_rec_layer_time (boost::shared_ptr<Region> region)
|
|
{
|
|
/* If we are in Stacked mode, we may need to (visually) create a new layer to put the
|
|
recorded region in. To work out where this needs to happen, find the start of the next
|
|
top-layered region after the start of the region we are recording and make a note of it.
|
|
*/
|
|
if (_layer_display == Stacked) {
|
|
_new_rec_layer_time = _trackview.track()->playlist()->find_next_top_layer_position (region->start());
|
|
} else {
|
|
_new_rec_layer_time = max_framepos;
|
|
}
|
|
}
|
|
|
|
void
|
|
StreamView::enter_internal_edit_mode ()
|
|
{
|
|
for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
|
|
(*i)->hide_rect ();
|
|
}
|
|
}
|
|
|
|
void
|
|
StreamView::leave_internal_edit_mode ()
|
|
{
|
|
for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
|
|
(*i)->show_rect ();
|
|
}
|
|
}
|