gtk2_ardour/canvas-note.cc

   1 #include "canvas-note.h"
   2 #include "midi_region_view.h"
   3 #include "public_editor.h"
   4 #include "evoral/Note.hpp"
   5
   6 using namespace ARDOUR;
   7
   8 namespace Gnome {
   9 namespace Canvas {
  10
  11 bool
  12 CanvasNote::on_event(GdkEvent* ev)
  13 {
  14         double          event_x;
  15         static double   middle_point, last_x;
  16         Gdk::Cursor     cursor;
  17         static NoteEnd  note_end;
  18         Editing::MidiEditMode edit_mode = _region.get_trackview().editor.current_midi_edit_mode();
  19
  20         switch (ev->type) {
  21         case GDK_BUTTON_PRESS:
  22                 if (ev->button.button == 2 ||
  23                                 (ev->button.button == 1 &&
  24                                  edit_mode == Editing::MidiEditResize)) {
  25                         double region_start = _region.get_position_pixels();
  26                         event_x = ev->button.x;
  27                         middle_point = region_start + x1() + (x2() - x1()) / 2.0L;
  28
  29                         if (event_x <= middle_point) {
  30                                 cursor = Gdk::Cursor(Gdk::LEFT_SIDE);
  31                                 note_end = NOTE_ON;
  32                         } else {
  33                                 cursor = Gdk::Cursor(Gdk::RIGHT_SIDE);
  34                                 note_end = NOTE_OFF;
  35                         }
  36
  37                         _item->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK, cursor, ev->motion.time);
  38
  39                         if (_region.mouse_state() == MidiRegionView::SelectTouchDragging) {
  40                                 _note_state = AbsoluteResize;
  41                         } else {
  42                                 _note_state = RelativeResize;
  43                         }
  44
  45                         _region.note_selected(this, true);
  46                         _region.begin_resizing(note_end);
  47                         last_x = event_x;
  48
  49                         return true;
  50                 }
  51
  52         case GDK_MOTION_NOTIFY:
  53                 event_x = ev->motion.x;
  54
  55                 if (_note_state == RelativeResize) {
  56                         _region.update_resizing(note_end, event_x - last_x, true);
  57                         last_x = event_x;
  58                         return true;
  59                 }
  60
  61                 if (_note_state == AbsoluteResize) {
  62                         _region.update_resizing(note_end, event_x, false);
  63                         return true;
  64                 }
  65
  66         case GDK_BUTTON_RELEASE:
  67                 event_x = ev->button.x;
  68
  69                 switch (_note_state) {
  70                 case RelativeResize: // Clicked
  71                         _item->ungrab(ev->button.time);
  72                         _region.commit_resizing(note_end, event_x, true);
  73                         _note_state = None;
  74                         return true;
  75
  76                 case AbsoluteResize: // Clicked
  77                         _item->ungrab(ev->button.time);
  78                         _region.commit_resizing(note_end, event_x, false);
  79                         _note_state = None;
  80                         return true;
  81
  82                 default:
  83                         return CanvasNoteEvent::on_event(ev);
  84                 }
  85
  86         default:
  87                 return CanvasNoteEvent::on_event(ev);
  88         }
  89 }
  90
  91 } // namespace Gnome
  92 } // namespace Canvas