src/qwt/src/qwt_panner.h

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/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
 * Qwt Widget Library
 * Copyright (C) 1997   Josef Wilgen
 * Copyright (C) 2002   Uwe Rathmann
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the Qwt License, Version 1.0
 *****************************************************************************/

#ifndef QWT_PANNER_H
#define QWT_PANNER_H 1

#include <qnamespace.h>
#include <qwidget.h>
#include "qwt_global.h"

class QCursor;

class QWT_EXPORT QwtPanner: public QWidget
{
    Q_OBJECT

public:
    QwtPanner(QWidget* parent);
    virtual ~QwtPanner();

    void setEnabled(bool);
    bool isEnabled() const;

    void setMouseButton(int button, int buttonState = Qt::NoButton);
    void getMouseButton(int &button, int &buttonState) const;
    void setAbortKey(int key, int state = Qt::NoButton);
    void getAbortKey(int &key, int &state) const;

    void setCursor(const QCursor &);
    const QCursor cursor() const;

#if QT_VERSION >= 0x040000
    void setOrientations(Qt::Orientations);
    Qt::Orientations orientations() const;
#else
    void enableOrientation(Qt::Orientation, bool enable);
#endif

    bool isOrientationEnabled(Qt::Orientation) const;

    virtual bool eventFilter(QObject *, QEvent *);

signals:
    void panned(int dx, int dy);

    void moved(int dx, int dy);

protected:
    virtual void widgetMousePressEvent(QMouseEvent *);
    virtual void widgetMouseReleaseEvent(QMouseEvent *);
    virtual void widgetMouseMoveEvent(QMouseEvent *);
    virtual void widgetKeyPressEvent(QKeyEvent *);
    virtual void widgetKeyReleaseEvent(QKeyEvent *);

    virtual void paintEvent(QPaintEvent *);

private:
#ifndef QT_NO_CURSOR
    void showCursor(bool);
#endif

    class PrivateData;
    PrivateData *d_data;
};

#endif