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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)
//=========================================================
#ifndef __ECANVAS_H__
#define __ECANVAS_H__
#include "canvas.h"
#include "noteinfo.h"
#include <QEvent>
#include <QKeyEvent>
class MidiPart;
class MidiTrack;
class MidiEditor;
class Part;
class QMimeData;
class QDrag;
class QString;
class QDropEvent;
struct PartToChange
{
Part* npart;
int xdiff;
};
typedef std::map<Part*, PartToChange> PartsToChangeMap;
typedef std::map<Part*, PartToChange>::iterator iPartToChange;
//---------------------------------------------------------
// EventCanvas
//---------------------------------------------------------
class EventCanvas : public Canvas {
Q_OBJECT
virtual void leaveEvent(QEvent*e);
virtual void enterEvent(QEvent*e);
virtual void mouseMove(QMouseEvent* event);
protected:
bool _playEvents;
MidiEditor* editor;
unsigned start_tick, end_tick;
int curVelo;
bool _steprec;
bool _midiin;
void updateSelection();
virtual void addItem(Part*, Event&) = 0;
// Added by T356.
virtual QPoint raster(const QPoint&) const;
virtual Undo moveCanvasItems(CItemList&, int, int, DragType) = 0;
virtual UndoOp moveItem(CItem*, const QPoint&, DragType) = 0;
virtual void endMoveItems(const QPoint&, DragType, int dir);
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, Event&, Part*);
void enterCanvas();
public:
EventCanvas(MidiEditor*, QWidget*, int, int, const char* name = 0);
MidiTrack* track() const;
unsigned start() const { return start_tick; }
unsigned end() const { return end_tick; }
bool midiin() const { return _midiin; }
bool steprec() const { return _steprec; }
QString getCaption() const;
void songChanged(int);
void range(int* s, int* e) const { *s = start_tick; *e = end_tick; }
void playEvents(bool flag) { _playEvents = flag; }
void selectAtTick(unsigned int tick);
void viewDropEvent(QDropEvent* event);
virtual void modifySelected(NoteInfo::ValType, int) {}
virtual void keyPress(QKeyEvent*);
};
#endif
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