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//=========================================================
// MusE
// Linux Music Editor
// $Id: ctrlcanvas.h,v 1.2 2003/11/19 21:28:40 lunar_shuttle Exp $
// (C) Copyright 1999 Werner Schweer (ws@seh.de)
//=========================================================
#ifndef __CTRLCANVAS_H__
#define __CTRLCANVAS_H__
#include <list>
#include "view.h"
#include "tools.h"
#include "midictrl.h"
const int CTRL_VELOCITY = 129;
class MidiEvent;
class MidiPart;
class PartList;
class MidiTrack;
class MidiEditor;
class QWidget;
//---------------------------------------------------------
// CEvent
// ''visual'' Controller Event
//---------------------------------------------------------
class CEvent {
MidiEvent* _event;
int _val;
MidiPart* _part;
int ex;
public:
CEvent(MidiEvent* e, MidiPart* part, int v);
MidiEvent* event() const { return _event; }
void setEvent(MidiEvent* ev) { _event = ev; }
int val() const { return _val; }
void setVal(int v) { _val = v; }
void setEX(int v) { ex = v; }
MidiPart* part() const { return _part; }
bool contains(int x1, int x2) const;
int x() { return ex; }
};
typedef std::list<CEvent*>::iterator iCEvent;
typedef std::list<CEvent*>::const_iterator ciCEvent;
//---------------------------------------------------------
// CEventList
// Controller Item List
//---------------------------------------------------------
class CEventList: public std::list<CEvent*> {
public:
void add(CEvent* item) { push_back(item); }
};
//---------------------------------------------------------
// CtrlCanvas
//---------------------------------------------------------
class CtrlCanvas : public View {
MidiEditor* editor;
MidiTrack* curTrack;
MidiPart* curPart;
MidiController ctrl;
int line1x;
int line1y;
int line2x;
int line2y;
bool drawLineMode;
void viewMousePressEvent(QMouseEvent* event);
void viewMouseMoveEvent(QMouseEvent*);
void viewMouseReleaseEvent(QMouseEvent*);
virtual void draw(QPainter&, const QRect&);
virtual void pdraw(QPainter&, const QRect&);
virtual void drawOverlay(QPainter& p);
virtual QRect overlayRect() const;
void changeValRamp(int x1, int x2, int y1, int y2);
void newValRamp(int x1, int y1, int x2, int y2);
void changeVal(int x1, int x2, int y);
void newVal(int x1, int x2, int y);
void deleteVal(int x1, int x2, int y);
int keyFilter; //Used by the drum-editor to filter controllers of only one key (one drum)
Q_OBJECT
protected:
enum DragMode { DRAG_OFF, DRAG_NEW, DRAG_MOVE_START, DRAG_MOVE,
DRAG_DELETE, DRAG_COPY_START, DRAG_COPY,
DRAG_RESIZE, DRAG_LASSO_START, DRAG_LASSO
};
CEventList items;
CEventList selection;
CEventList moving;
CEvent* curItem;
DragMode drag;
QRect lasso;
QPoint start;
Tool tool;
int pos[3];
void leaveEvent(QEvent*e);
QPoint raster(const QPoint&) const;
// selection
bool isSingleSelection() { return selection.size() == 1; }
void deselectAll();
void selectItem(CEvent* e);
void deselectItem(CEvent* e);
private slots:
void songChanged(int type);
public slots:
void setTool(int t);
void setPos(int, int, bool adjustScrollbar);
void setController(const MidiController&);
void setKeyfilter(const char in_keyfilter);
signals:
void followEvent(int);
void xposChanged(int);
void yposChanged(int);
public:
CtrlCanvas(MidiEditor*, QWidget* parent, int,
const char* name = 0);
const MidiController& controller() { return ctrl; }
};
#endif
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