69 lines
1.7 KiB
C++
69 lines
1.7 KiB
C++
/*****************************************************************************
|
|
* Qwt Examples - Copyright (C) 2002 Uwe Rathmann
|
|
* This file may be used under the terms of the 3-clause BSD License
|
|
*****************************************************************************/
|
|
|
|
#pragma once
|
|
|
|
#include <QwtPlotZoomer>
|
|
#include <QwtPlot>
|
|
|
|
class ScrollData;
|
|
class ScrollBar;
|
|
|
|
class ScrollZoomer : public QwtPlotZoomer
|
|
{
|
|
Q_OBJECT
|
|
public:
|
|
enum ScrollBarPosition
|
|
{
|
|
AttachedToScale,
|
|
OppositeToScale
|
|
};
|
|
|
|
ScrollZoomer( QWidget* );
|
|
virtual ~ScrollZoomer();
|
|
|
|
ScrollBar* horizontalScrollBar() const;
|
|
ScrollBar* verticalScrollBar() const;
|
|
|
|
void setHScrollBarMode( Qt::ScrollBarPolicy );
|
|
void setVScrollBarMode( Qt::ScrollBarPolicy );
|
|
|
|
Qt::ScrollBarPolicy vScrollBarMode () const;
|
|
Qt::ScrollBarPolicy hScrollBarMode () const;
|
|
|
|
void setHScrollBarPosition( ScrollBarPosition );
|
|
void setVScrollBarPosition( ScrollBarPosition );
|
|
|
|
ScrollBarPosition hScrollBarPosition() const;
|
|
ScrollBarPosition vScrollBarPosition() const;
|
|
|
|
QWidget* cornerWidget() const;
|
|
virtual void setCornerWidget( QWidget* );
|
|
|
|
virtual bool eventFilter( QObject*, QEvent* ) QWT_OVERRIDE;
|
|
|
|
virtual void rescale() QWT_OVERRIDE;
|
|
|
|
protected:
|
|
virtual ScrollBar* scrollBar( Qt::Orientation );
|
|
virtual void updateScrollBars();
|
|
virtual void layoutScrollBars( const QRect& );
|
|
|
|
private Q_SLOTS:
|
|
void scrollBarMoved( Qt::Orientation o, double min, double max );
|
|
|
|
private:
|
|
bool needScrollBar( Qt::Orientation ) const;
|
|
int oppositeAxis( int ) const;
|
|
|
|
QWidget* m_cornerWidget;
|
|
|
|
ScrollData* m_hScrollData;
|
|
ScrollData* m_vScrollData;
|
|
|
|
bool m_inZoom;
|
|
bool m_alignCanvasToScales[ QwtAxis::AxisPositions ];
|
|
};
|