Chris@57: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
cannam@45: 
cannam@45: /*
Chris@57:     EasyMercurial
Chris@57: 
Chris@57:     Based on HgExplorer by Jari Korhonen
Chris@57:     Copyright (c) 2010 Jari Korhonen
Chris@57:     Copyright (c) 2010 Chris Cannam
Chris@57:     Copyright (c) 2010 Queen Mary, University of London
Chris@57:     
cannam@45:     This program is free software; you can redistribute it and/or
cannam@45:     modify it under the terms of the GNU General Public License as
cannam@45:     published by the Free Software Foundation; either version 2 of the
cannam@45:     License, or (at your option) any later version.  See the file
cannam@45:     COPYING included with this distribution for more information.
cannam@45: */
cannam@45: 
Chris@57: #ifndef _PANNER_H_
Chris@57: #define _PANNER_H_
cannam@45: 
cannam@45: #include <QGraphicsView>
cannam@45: 
cannam@45: class Panned;
cannam@45: 
cannam@45: class Panner : public QGraphicsView
cannam@45: {
cannam@45:     Q_OBJECT
cannam@45: 
cannam@45: public:
cannam@45:     Panner();
cannam@45:     virtual ~Panner() { }
cannam@45: 
cannam@45:     virtual void setScene(QGraphicsScene *);
cannam@45: 
cannam@45:     void connectToPanned(Panned *p);
cannam@45: 
cannam@45: signals:
cannam@45:     void pannedRectChanged(QRectF);
cannam@45:     void pannerChanged(QRectF);
cannam@45:     void zoomIn();
cannam@45:     void zoomOut();
cannam@45: 
cannam@45: public slots:
cannam@45:     void slotSetPannedRect(QRectF);
cannam@45: 
cannam@45: protected slots:
cannam@45:     void slotSceneRectChanged(const QRectF &);
cannam@45: 
cannam@45: protected:
cannam@45:     QRectF m_pannedRect;
cannam@45: 
cannam@45:     void moveTo(QPoint);
cannam@45: 
cannam@45:     virtual void paintEvent(QPaintEvent *);
cannam@45:     virtual void mousePressEvent(QMouseEvent *e);
cannam@45:     virtual void mouseMoveEvent(QMouseEvent *e);
cannam@45:     virtual void mouseReleaseEvent(QMouseEvent *e);
cannam@45:     virtual void mouseDoubleClickEvent(QMouseEvent *e);
cannam@45:     virtual void wheelEvent(QWheelEvent *e);
cannam@45: 
cannam@45:     virtual void resizeEvent(QResizeEvent *);
cannam@45: 
cannam@45:     virtual void updateScene(const QList<QRectF> &);
cannam@45:     virtual void drawItems(QPainter *, int, QGraphicsItem *[],
cannam@45:                            const QStyleOptionGraphicsItem []);
cannam@45: 
cannam@45:     bool m_clicked;
cannam@45:     QRectF m_clickedRect;
cannam@45:     QPoint m_clickedPoint;
cannam@45: 
cannam@45:     QPixmap m_cache;
cannam@45: };
cannam@45: 
cannam@45: #endif
cannam@45: