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//=========================================================
// MusE
// Linux Music Editor
// $Id: view.h,v 1.2.2.1 2008/01/26 07:23:21 terminator356 Exp $
// (C) Copyright 1999 Werner Schweer (ws@seh.de)
// Additions, modifications (C) Copyright 2011 Tim E. Real (terminator356 on users DOT sourceforge DOT net)
//
// 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 __VIEW_H__
#define __VIEW_H__
#include <QWidget>
class QDropEvent;
class QKeyEvent;
class QMouseEvent;
class QPaintEvent;
class QPainter;
class QPixmap;
class QResizeEvent;
namespace MusEGui {
//---------------------------------------------------------
// View
// horizontal View with double buffering
//---------------------------------------------------------
class View : public QWidget {
Q_OBJECT
QPixmap pm; // for double buffering
bool pmValid;
QPixmap bgPixmap; // background Pixmap
QBrush brush;
bool _virt;
protected:
int xorg;
int yorg;
int xpos, ypos;
int xmag, ymag;
virtual void keyPressEvent(QKeyEvent* event);
virtual void keyReleaseEvent(QKeyEvent* event);
virtual void mousePressEvent(QMouseEvent* event);
virtual void mouseDoubleClickEvent(QMouseEvent* event);
virtual void mouseMoveEvent(QMouseEvent* event);
virtual void mouseReleaseEvent(QMouseEvent* event);
virtual void dropEvent(QDropEvent* event);
virtual void draw(QPainter&, const QRect&) {}
virtual void drawOverlay(QPainter&) {}
virtual QRect overlayRect() const { return QRect(0, 0, 0, 0); }
virtual void drawTickRaster(QPainter& p, int x, int y, int w, int h, int raster);
virtual void pdraw(QPainter&, const QRect&);
virtual void paintEvent(QPaintEvent* ev);
void redraw(const QRect&);
void paint(const QRect& r);
virtual void resizeEvent(QResizeEvent*);
virtual void viewKeyPressEvent(QKeyEvent*);
virtual void viewKeyReleaseEvent(QKeyEvent*);
virtual void viewMousePressEvent(QMouseEvent*) {}
virtual void viewMouseDoubleClickEvent(QMouseEvent*) {}
virtual void viewMouseMoveEvent(QMouseEvent*) {}
virtual void viewMouseReleaseEvent(QMouseEvent*) {}
virtual void viewDropEvent(QDropEvent*) {}
QRect map(const QRect&) const;
QPoint map(const QPoint&) const;
QRect mapDev(const QRect&) const;
QPoint mapDev(const QPoint&) const;
int mapx(int x) const;
int mapy(int y) const;
int mapyDev(int y) const;
int mapxDev(int x) const;
int rmapy(int y) const;
int rmapyDev(int y) const;
//QRect devToVirt(const QRect&);
double rmapx_f(double x) const;
double rmapy_f(double y) const;
double rmapxDev_f(double x) const;
double rmapyDev_f(double y) const;
void setPainter(QPainter& p);
public slots:
void setXPos(int);
void setYPos(int);
void setXMag(int xs);
void setYMag(int ys);
void redraw();
public:
View(QWidget*, int, int, const char* name = 0);
void setBg(const QPixmap& pm);
void setBg(const QColor& color) { brush.setColor(color); redraw(); }
void setXOffset(int v) { setXPos(mapx(v)); }
int xOffset() const { return mapxDev(xpos)-xorg; }
int xOffsetDev() const { return xpos-rmapx(xorg); }
int yOffset() const { return mapyDev(ypos)-yorg; }
int getXScale() const { return xmag; }
int getYScale() const { return ymag; }
void setOrigin(int x, int y);
void setVirt(bool flag) { _virt = flag; }
bool virt() const { return _virt; }
int rmapxDev(int x) const;
int rmapx(int x) const;
};
} // namespace MusEGui
#endif
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