Fix crash when track creation failed draging region
Add more check when creating a new track from a region drag into editor's empty area. Fix #6496
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@ -1425,7 +1425,7 @@ RegionMoveDrag::create_destination_time_axis (boost::shared_ptr<Region> region,
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/* Add a new track of the correct type, and return the RouteTimeAxisView that is created to display the
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/* Add a new track of the correct type, and return the RouteTimeAxisView that is created to display the
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new track.
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new track.
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*/
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*/
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TimeAxisView* tav = 0;
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try {
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try {
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if (boost::dynamic_pointer_cast<AudioRegion> (region)) {
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if (boost::dynamic_pointer_cast<AudioRegion> (region)) {
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list<boost::shared_ptr<AudioTrack> > audio_tracks;
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list<boost::shared_ptr<AudioTrack> > audio_tracks;
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@ -1434,27 +1434,24 @@ RegionMoveDrag::create_destination_time_axis (boost::shared_ptr<Region> region,
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output_chan = _editor->session()->master_out()->n_inputs().n_audio();
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output_chan = _editor->session()->master_out()->n_inputs().n_audio();
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}
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}
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audio_tracks = _editor->session()->new_audio_track (region->n_channels(), output_chan, 0, 1, region->name(), PresentationInfo::max_order);
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audio_tracks = _editor->session()->new_audio_track (region->n_channels(), output_chan, 0, 1, region->name(), PresentationInfo::max_order);
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TimeAxisView* tav =_editor->axis_view_from_stripable (audio_tracks.front());
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tav =_editor->axis_view_from_stripable (audio_tracks.front());
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if (tav) {
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tav->set_height (original->current_height());
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}
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return dynamic_cast<RouteTimeAxisView*>(tav);
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} else {
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} else {
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ChanCount one_midi_port (DataType::MIDI, 1);
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ChanCount one_midi_port (DataType::MIDI, 1);
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list<boost::shared_ptr<MidiTrack> > midi_tracks;
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list<boost::shared_ptr<MidiTrack> > midi_tracks;
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midi_tracks = _editor->session()->new_midi_track (one_midi_port, one_midi_port, boost::shared_ptr<ARDOUR::PluginInfo>(),
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midi_tracks = _editor->session()->new_midi_track (one_midi_port, one_midi_port, boost::shared_ptr<ARDOUR::PluginInfo>(),
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(ARDOUR::Plugin::PresetRecord*) 0,
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(ARDOUR::Plugin::PresetRecord*) 0,
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(ARDOUR::RouteGroup*) 0, 1, region->name(), PresentationInfo::max_order);
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(ARDOUR::RouteGroup*) 0, 1, region->name(), PresentationInfo::max_order);
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TimeAxisView* tav = _editor->axis_view_from_stripable (midi_tracks.front());
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tav = _editor->axis_view_from_stripable (midi_tracks.front());
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if (tav) {
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}
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tav->set_height (original->current_height());
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}
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if (tav) {
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return dynamic_cast<RouteTimeAxisView*> (tav);
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tav->set_height (original->current_height());
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}
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}
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} catch (...) {
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} catch (...) {
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error << _("Could not create new track after region placed in the drop zone") << endmsg;
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error << _("Could not create new track after region placed in the drop zone") << endmsg;
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return 0;
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}
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}
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return dynamic_cast<RouteTimeAxisView*> (tav);
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}
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}
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void
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void
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@ -1503,6 +1500,10 @@ RegionMoveDrag::finished_copy (bool const changed_position, bool const /*changed
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if ((pm = playlist_mapping.find (i->view->region()->playlist())) == playlist_mapping.end()) {
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if ((pm = playlist_mapping.find (i->view->region()->playlist())) == playlist_mapping.end()) {
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/* first region from this original playlist: create a new track */
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/* first region from this original playlist: create a new track */
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new_time_axis_view = create_destination_time_axis (i->view->region(), i->initial_time_axis_view);
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new_time_axis_view = create_destination_time_axis (i->view->region(), i->initial_time_axis_view);
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if(!new_time_axis_view) {
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Drag::abort();
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return;
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}
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playlist_mapping.insert (make_pair (i->view->region()->playlist(), new_time_axis_view));
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playlist_mapping.insert (make_pair (i->view->region()->playlist(), new_time_axis_view));
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dest_rtv = new_time_axis_view;
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dest_rtv = new_time_axis_view;
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} else {
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} else {
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@ -1590,6 +1591,10 @@ RegionMoveDrag::finished_no_copy (
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if ((pm = playlist_mapping.find (i->view->region()->playlist())) == playlist_mapping.end()) {
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if ((pm = playlist_mapping.find (i->view->region()->playlist())) == playlist_mapping.end()) {
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/* first region from this original playlist: create a new track */
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/* first region from this original playlist: create a new track */
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new_time_axis_view = create_destination_time_axis (i->view->region(), i->initial_time_axis_view);
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new_time_axis_view = create_destination_time_axis (i->view->region(), i->initial_time_axis_view);
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if(!new_time_axis_view) { // New track creation failed
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Drag::abort();
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return;
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}
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playlist_mapping.insert (make_pair (i->view->region()->playlist(), new_time_axis_view));
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playlist_mapping.insert (make_pair (i->view->region()->playlist(), new_time_axis_view));
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dest_rtv = new_time_axis_view;
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dest_rtv = new_time_axis_view;
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} else {
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} else {
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