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 && edit_mode == Editing::MidiEditResize)) {
  24                         double region_start = _region.get_position_pixels();
  25                         event_x = ev->button.x;
  26                         middle_point = region_start + x1() + (x2() - x1()) / 2.0L;
  27
  28                         if (event_x <= middle_point) {
  29                                 cursor = Gdk::Cursor(Gdk::LEFT_SIDE);
  30                                 note_end = NOTE_ON;
  31                         } else {
  32                                 cursor = Gdk::Cursor(Gdk::RIGHT_SIDE);
  33                                 note_end = NOTE_OFF;
  34                         }
  35
  36                         _item->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK, cursor, ev->motion.time);
  37
  38                         if (_region.mouse_state() == MidiRegionView::SelectTouchDragging) {
  39                                 _note_state = AbsoluteResize;
  40                         } else {
  41                                 _note_state = RelativeResize;
  42                         }
  43
  44                         _region.note_selected(this, true);
  45                         _region.begin_resizing(note_end);
  46                         last_x = event_x;
  47
  48                         return true;
  49                 }
  50
  51         case GDK_MOTION_NOTIFY:
  52                 event_x = ev->motion.x;
  53
  54                 if (_note_state == RelativeResize) {
  55                         _region.update_resizing(note_end, event_x - last_x, true);
  56                         last_x = event_x;
  57                         return true;
  58                 }
  59
  60                 if (_note_state == AbsoluteResize) {
  61                         _region.update_resizing(note_end, event_x, false);
  62                         return true;
  63                 }
  64
  65         case GDK_BUTTON_RELEASE:
  66                 event_x = ev->button.x;
  67
  68                 switch (_note_state) {
  69                 case RelativeResize: // Clicked
  70                         _item->ungrab(ev->button.time);
  71                         _region.commit_resizing(note_end, event_x, true);
  72                         _note_state = None;
  73                         return true;
  74
  75                 case AbsoluteResize: // Clicked
  76                         _item->ungrab(ev->button.time);
  77                         _region.commit_resizing(note_end, event_x, false);
  78                         _note_state = None;
  79                         return true;
  80
  81                 default:
  82                         return CanvasNoteEvent::on_event(ev);
  83                 }
  84
  85         default:
  86                 return CanvasNoteEvent::on_event(ev);
  87         }
  88 }
  89
  90 } // namespace Gnome
  91 } // namespace Canvas