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livetrax/gtk2_ardour/canvas-note.cc

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#include "canvas-note.h"
#include "midi_region_view.h"
#include "public_editor.h"
#include "evoral/Note.hpp"
using namespace ARDOUR;
namespace Gnome {
namespace Canvas {
bool
CanvasNote::on_event(GdkEvent* ev)
{
double event_x;
static double middle_point, last_x;
Gdk::Cursor cursor;
static NoteEnd note_end;
Editing::MidiEditMode edit_mode = _region.get_trackview().editor().current_midi_edit_mode();
switch (ev->type) {
case GDK_BUTTON_PRESS:
if (ev->button.button == 2 ||
(ev->button.button == 1 && edit_mode == Editing::MidiEditResize)) {
double region_start = _region.get_position_pixels();
event_x = ev->button.x;
middle_point = region_start + x1() + (x2() - x1()) / 2.0L;
if (event_x <= middle_point) {
cursor = Gdk::Cursor(Gdk::LEFT_SIDE);
note_end = NOTE_ON;
} else {
cursor = Gdk::Cursor(Gdk::RIGHT_SIDE);
note_end = NOTE_OFF;
}
_item->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK, cursor, ev->motion.time);
if (_region.mouse_state() == MidiRegionView::SelectTouchDragging) {
_note_state = AbsoluteResize;
} else {
_note_state = RelativeResize;
}
_region.note_selected(this, true);
_region.begin_resizing(note_end);
last_x = event_x;
return true;
}
case GDK_MOTION_NOTIFY:
event_x = ev->motion.x;
if (_note_state == RelativeResize) {
_region.update_resizing(note_end, event_x - last_x, true);
last_x = event_x;
return true;
}
if (_note_state == AbsoluteResize) {
_region.update_resizing(note_end, event_x, false);
return true;
}
case GDK_BUTTON_RELEASE:
event_x = ev->button.x;
switch (_note_state) {
case RelativeResize: // Clicked
_item->ungrab(ev->button.time);
_region.commit_resizing(note_end, event_x, true);
_note_state = None;
return true;
case AbsoluteResize: // Clicked
_item->ungrab(ev->button.time);
_region.commit_resizing(note_end, event_x, false);
_note_state = None;
return true;
default:
return CanvasNoteEvent::on_event(ev);
}
default:
return CanvasNoteEvent::on_event(ev);
}
}
} // namespace Gnome
} // namespace Canvas