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//=========================================================
// MusE
// Linux Music Editor
// $Id: ecanvas.h,v 1.5.2.4 2009/02/02 21:38:00 terminator356 Exp $
// (C) Copyright 2001 Werner Schweer (ws@seh.de)
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; version 2 of
// the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
//=========================================================
#ifndef __ECANVAS_H__
#define __ECANVAS_H__
#include "type_defs.h"
#include "canvas.h"
#include "noteinfo.h"
#include <QEvent>
#include <QKeyEvent>
#define KH 13
class QMimeData;
class QDrag;
class QString;
class QDropEvent;
namespace MusECore {
class MidiPart;
class MidiTrack;
class Part;
struct PartToChange
{
Part* npart;
int xdiff;
};
typedef std::map<Part*, PartToChange> PartsToChangeMap;
typedef std::map<Part*, PartToChange>::iterator iPartToChange;
}
namespace MusEGui {
class MidiEditor;
//---------------------------------------------------------
// EventCanvas
//---------------------------------------------------------
class EventCanvas : public Canvas {
Q_OBJECT
virtual void leaveEvent(QEvent*e);
virtual void enterEvent(QEvent*e);
virtual void mouseMove(QMouseEvent* event);
protected:
int playedPitch;
int playedVelocity;
int playedPitchPort;
int playedPitchChannel;
bool _playEvents;
MidiEditor* editor;
unsigned start_tick, end_tick;
int curVelo;
bool _steprec;
bool _midiin;
bool _setCurPartIfOnlyOneEventIsSelected;
void updateSelection();
virtual CItem* addItem(MusECore::Part*, const MusECore::Event&) = 0;
virtual QPoint raster(const QPoint&) const;
virtual MusECore::Undo moveCanvasItems(CItemList&, int, int, DragType, bool rasterize = true) = 0;
virtual bool moveItem(MusECore::Undo&, CItem*, const QPoint&, DragType, bool rasterize = true) = 0;
virtual void endMoveItems(const QPoint&, DragType, int dir, bool rasterize = true);
virtual void startPlayEvent(int note, int velocity);
virtual void startPlayEvent(int note, int velocity, int port, int channel);
virtual void stopPlayEvent();
public slots:
void redrawGrid() { redraw(); }
void setSteprec(bool f) { _steprec = f; }
void setMidiin(bool f) { _midiin = f; }
signals:
void pitchChanged(int); // current cursor position
void timeChanged(unsigned);
void selectionChanged(int /*tick or frame*/ , MusECore::Event&, MusECore::Part*, bool /*update*/);
void enterCanvas();
public:
EventCanvas(MidiEditor*, QWidget*, int, int, const char* name = 0);
virtual ~EventCanvas();
MusECore::MidiTrack* track() const;
virtual unsigned start() const { return start_tick; }
virtual unsigned end() const { return end_tick; }
bool midiin() const { return _midiin; }
bool steprec() const { return _steprec; }
virtual QString getCaption() const;
virtual void songChanged(MusECore::SongChangedFlags_t);
virtual void range(int* s, int* e) const { *s = start_tick; *e = end_tick; }
void playEvents(bool flag) { _playEvents = flag; }
virtual void selectAtTick(unsigned int tick);
virtual void viewDropEvent(QDropEvent* event);
virtual void modifySelected(NoteInfo::ValType, int /*val*/, bool /*delta_mode*/ = true) {}
virtual void keyPress(QKeyEvent*);
};
} // namespace MusEGui
#endif
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