Chris@0: /* -*- c-basic-offset: 4 -*-  vi:set ts=8 sts=4 sw=4: */
Chris@0: 
Chris@0: /*
Chris@0:     A waveform viewer and audio annotation editor.
Chris@0:     Chris Cannam, Queen Mary University of London, 2005
Chris@0:     
Chris@0:     This is experimental software.  Not for distribution.
Chris@0: */
Chris@0: 
Chris@0: #ifndef _PAN_WIDGET_H_
Chris@0: #define _PAN_WIDGET_H_
Chris@0: 
Chris@0: #include "base/View.h"
Chris@0: 
Chris@0: #include <QPoint>
Chris@0: 
Chris@0: class QWidget;
Chris@0: class QPaintEvent;
Chris@0: class Layer;
Chris@0: class View;
Chris@0: 
Chris@0: #include <map>
Chris@0: 
Chris@0: class Panner : public View
Chris@0: {
Chris@0:     Q_OBJECT
Chris@0: 
Chris@0: public:
Chris@0:     Panner(QWidget *parent = 0);
Chris@0: 
Chris@0:     void registerView(View *widget);
Chris@0:     void unregisterView(View *widget);
Chris@0: 
Chris@0:     virtual QString getPropertyContainerIconName() const { return "panner"; }
Chris@0: 
Chris@0: public slots:
Chris@0:     virtual void modelChanged(size_t startFrame, size_t endFrame);
Chris@0:     virtual void modelReplaced();
Chris@0: 
Chris@0:     virtual void viewManagerCentreFrameChanged(void *, unsigned long, bool);
Chris@0:     virtual void viewManagerZoomLevelChanged(void *, unsigned long, bool);
Chris@0:     virtual void viewManagerPlaybackFrameChanged(unsigned long);
Chris@0: 
Chris@0: protected:
Chris@0:     virtual void paintEvent(QPaintEvent *e);
Chris@0:     virtual void mousePressEvent(QMouseEvent *e);
Chris@0:     virtual void mouseReleaseEvent(QMouseEvent *e);
Chris@0:     virtual void mouseMoveEvent(QMouseEvent *e);
Chris@0: 
Chris@0:     QPoint m_clickPos;
Chris@0:     QPoint m_mousePos;
Chris@0:     bool m_clickedInRange;
Chris@0:     size_t m_dragCentreFrame;
Chris@0:     
Chris@0:     typedef std::pair<size_t, int> WidgetRec; // centre, zoom (-1 = invalid)
Chris@0:     typedef std::map<void *, WidgetRec> WidgetMap;
Chris@0:     WidgetMap m_widgets;
Chris@0: };
Chris@0: 
Chris@0: #endif
Chris@0: