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** This file contains pre-release code and may not be distributed.

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** contained in the Technology Preview License Agreement accompanying

** this package.

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** General Public License version 2.1 as published by the Free Software

** Foundation and appearing in the file LICENSE.LGPL included in the

** packaging of this file.  Please review the following information to

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****************************************************************************/

#ifndef QABSTRACTSCROLLAREA_H

#define QABSTRACTSCROLLAREA_H

#include <QtGui/qframe.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Gui)

#ifndef QT_NO_SCROLLAREA

class QMargins;

class QScrollBar;

class QAbstractScrollAreaPrivate;

class Q_GUI_EXPORT QAbstractScrollArea : public QFrame

{

    Q_OBJECT

    Q_PROPERTY(Qt::ScrollBarPolicy verticalScrollBarPolicy READ verticalScrollBarPolicy WRITE setVerticalScrollBarPolicy)

    Q_PROPERTY(Qt::ScrollBarPolicy horizontalScrollBarPolicy READ horizontalScrollBarPolicy WRITE setHorizontalScrollBarPolicy)

public:

    explicit QAbstractScrollArea(QWidget* parent=0);

    ~QAbstractScrollArea();

    Qt::ScrollBarPolicy verticalScrollBarPolicy() const;

    void setVerticalScrollBarPolicy(Qt::ScrollBarPolicy);

    QScrollBar *verticalScrollBar() const;

    void setVerticalScrollBar(QScrollBar *scrollbar);

    Qt::ScrollBarPolicy horizontalScrollBarPolicy() const;

    void setHorizontalScrollBarPolicy(Qt::ScrollBarPolicy);

    QScrollBar *horizontalScrollBar() const;

    void setHorizontalScrollBar(QScrollBar *scrollbar);

    QWidget *cornerWidget() const;

    void setCornerWidget(QWidget *widget);

    void addScrollBarWidget(QWidget *widget, Qt::Alignment alignment);

    QWidgetList scrollBarWidgets(Qt::Alignment alignment);

    QWidget *viewport() const;

    void setViewport(QWidget *widget);

    QSize maximumViewportSize() const;

    QSize minimumSizeHint() const;

    QSize sizeHint() const;

protected Q_SLOTS:

    void setupViewport(QWidget *viewport);

protected:

    QAbstractScrollArea(QAbstractScrollAreaPrivate &dd, QWidget *parent = 0);

    void setViewportMargins(int left, int top, int right, int bottom);

    void setViewportMargins(const QMargins &margins);

    bool event(QEvent *);

    virtual bool viewportEvent(QEvent *);

    void resizeEvent(QResizeEvent *);

    void paintEvent(QPaintEvent *);

    void mousePressEvent(QMouseEvent *);

    void mouseReleaseEvent(QMouseEvent *);

    void mouseDoubleClickEvent(QMouseEvent *);

    void mouseMoveEvent(QMouseEvent *);

#ifndef QT_NO_WHEELEVENT

    void wheelEvent(QWheelEvent *);

#endif

#ifndef QT_NO_CONTEXTMENU

    void contextMenuEvent(QContextMenuEvent *);

#endif

#ifndef QT_NO_DRAGANDDROP

    void dragEnterEvent(QDragEnterEvent *);

    void dragMoveEvent(QDragMoveEvent *);

    void dragLeaveEvent(QDragLeaveEvent *);

    void dropEvent(QDropEvent *);

#endif

    void keyPressEvent(QKeyEvent *);

    virtual void scrollContentsBy(int dx, int dy);

private:

    Q_DECLARE_PRIVATE(QAbstractScrollArea)

    Q_DISABLE_COPY(QAbstractScrollArea)

    Q_PRIVATE_SLOT(d_func(), void _q_hslide(int))

    Q_PRIVATE_SLOT(d_func(), void _q_vslide(int))

    Q_PRIVATE_SLOT(d_func(), void _q_showOrHideScrollBars())

    friend class QStyleSheetStyle;

    friend class QWidgetPrivate;

};

#endif // QT_NO_SCROLLAREA

QT_END_NAMESPACE

QT_END_HEADER

#endif // QABSTRACTSCROLLAREA_H