David Robillard
056b2a59d5
Initial work on MidiModel iterator. git-svn-id: svn://localhost/ardour2/trunk@2355 d708f5d6-7413-0410-9779-e7cbd77b26cf
81 lines
2.3 KiB
C++
81 lines
2.3 KiB
C++
/*
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Copyright (C) 2007 Paul Davis
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Author: Dave Robillard
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef __gtk_ardour_canvas_midi_event_h__
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#define __gtk_ardour_canvas_midi_event_h__
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#include "simplerect.h"
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#include <ardour/midi_model.h>
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class Editor;
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class MidiRegionView;
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namespace Gnome {
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namespace Canvas {
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/** This manages all the event handling for any MIDI event on the canvas.
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*
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* This is not actually a canvas item itself to avoid the dreaded diamond,
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* since various types of canvas items (Note (rect), Hit (diamond), etc)
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* need to share this functionality but can't share an ancestor.
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*
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* Note: Because of this, derived classes need to manually bounce events to
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* on_event, it won't happen automatically.
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*
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* A newer, better canvas should remove the need for all the ugly here.
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*/
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class CanvasMidiEvent {
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public:
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CanvasMidiEvent(MidiRegionView& region, Item* item, const ARDOUR::Note* note = NULL);
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virtual ~CanvasMidiEvent() {}
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bool on_event(GdkEvent* ev);
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bool selected() const { return _selected; }
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void selected(bool yn);
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virtual void set_outline_color(uint32_t c) = 0;
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virtual void set_fill_color(uint32_t c) = 0;
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virtual double x1() = 0;
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virtual double y1() = 0;
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virtual double x2() = 0;
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virtual double y2() = 0;
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const Item* item() const { return _item; }
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Item* item() { return _item; }
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const ARDOUR::Note* note() { return _note; }
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protected:
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enum State { None, Pressed, Dragging };
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MidiRegionView& _region;
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Item* const _item;
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State _state;
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const ARDOUR::Note* _note;
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bool _selected;
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};
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} // namespace Gnome
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} // namespace Canvas
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#endif /* __gtk_ardour_canvas_midi_event_h__ */
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