+HitCreateDrag::HitCreateDrag (Editor* e, ArdourCanvas::Item* i, MidiRegionView* rv)
+ : Drag (e, i)
+ , _region_view (rv)
+ , _last_pos (0)
+ , _last_y (0.0)
+{
+}
+
+HitCreateDrag::~HitCreateDrag ()
+{
+}
+
+void
+HitCreateDrag::start_grab (GdkEvent* event, Gdk::Cursor* cursor)
+{
+ Drag::start_grab (event, cursor);
+
+ TempoMap& map (_editor->session()->tempo_map());
+
+ const framepos_t pf = _drags->current_pointer_frame ();
+ const int32_t divisions = _editor->get_grid_music_divisions (event->button.state);
+
+ const double eqaf = map.exact_qn_at_frame (pf, divisions);
+
+ boost::shared_ptr<MidiRegion> mr = _region_view->midi_region();
+
+ if (eqaf >= mr->quarter_note() + mr->length_beats()) {
+ return;
+ }
+
+ const framepos_t start = map.frame_at_quarter_note (eqaf) - _region_view->region()->position();
+
+ MidiStreamView* sv = _region_view->midi_stream_view ();
+ const double y = sv->note_to_y (sv->y_to_note (y_to_region (event->button.y)));
+
+ Evoral::Beats length = _region_view->get_grid_beats (pf);
+
+ _region_view->create_note_at (start, y, length, event->button.state, false);
+
+ _last_pos = start;
+ _last_y = y;
+}
+
+void
+HitCreateDrag::motion (GdkEvent* event, bool)
+{
+ TempoMap& map (_editor->session()->tempo_map());
+
+ const framepos_t pf = _drags->current_pointer_frame ();
+ const int32_t divisions = _editor->get_grid_music_divisions (event->button.state);
+
+ if (divisions == 0) {
+ return;
+ }
+
+ const double eqaf = map.exact_qn_at_frame (pf, divisions);
+ const framepos_t start = map.frame_at_quarter_note (eqaf) - _region_view->region()->position ();
+
+ MidiStreamView* sv = _region_view->midi_stream_view ();
+ const double y = sv->note_to_y (sv->y_to_note (y_to_region (event->button.y)));
+
+ if (_last_pos == start && y == _last_y) {
+ return;
+ }
+
+ Evoral::Beats length = _region_view->get_grid_beats (pf);
+
+ boost::shared_ptr<MidiRegion> mr = _region_view->midi_region();
+ if (eqaf >= mr->quarter_note() + mr->length_beats()) {
+ return;
+ }
+
+ _region_view->create_note_at (start, y, length, event->button.state, false);
+
+ _last_pos = start;
+ _last_y = y;
+}
+
+void
+HitCreateDrag::finished (GdkEvent* /* ev */, bool /* had_movement */)
+{
+
+}
+
+double
+HitCreateDrag::y_to_region (double y) const
+{
+ double x = 0;
+ _region_view->get_canvas_group()->canvas_to_item (x, y);
+ return y;
+}
+
+void
+HitCreateDrag::aborted (bool)
+{
+ // umm..
+}
+