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

#ifndef QMDIAREA_H

#define QMDIAREA_H

#include <QtGui/qabstractscrollarea.h>

#include <QtGui/qtabwidget.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Gui)

#ifndef QT_NO_MDIAREA

class QMdiSubWindow;

class QMdiAreaPrivate;

class Q_GUI_EXPORT QMdiArea : public QAbstractScrollArea

{

    Q_OBJECT

    Q_ENUMS(ViewMode)

    Q_PROPERTY(QBrush background READ background WRITE setBackground)

    Q_PROPERTY(WindowOrder activationOrder READ activationOrder WRITE setActivationOrder)

    Q_PROPERTY(ViewMode viewMode READ viewMode WRITE setViewMode)

#ifndef QT_NO_TABBAR

    Q_PROPERTY(bool documentMode READ documentMode WRITE setDocumentMode)

#endif

#ifndef QT_NO_TABWIDGET

    Q_PROPERTY(QTabWidget::TabShape tabShape READ tabShape WRITE setTabShape)

    Q_PROPERTY(QTabWidget::TabPosition tabPosition READ tabPosition WRITE setTabPosition)

#endif

    Q_ENUMS(WindowOrder)

public:

    enum AreaOption {

        DontMaximizeSubWindowOnActivation = 0x1

    };

    Q_DECLARE_FLAGS(AreaOptions, AreaOption)

    enum WindowOrder {

        CreationOrder,

        StackingOrder,

        ActivationHistoryOrder

    };

    enum ViewMode {

        SubWindowView,

        TabbedView

    };

    QMdiArea(QWidget *parent = 0);

    ~QMdiArea();

    QSize sizeHint() const;

    QSize minimumSizeHint() const;

    QMdiSubWindow *currentSubWindow() const;

    QMdiSubWindow *activeSubWindow() const;

    QList<QMdiSubWindow *> subWindowList(WindowOrder order = CreationOrder) const;

    QMdiSubWindow *addSubWindow(QWidget *widget, Qt::WindowFlags flags = 0);

    void removeSubWindow(QWidget *widget);

    QBrush background() const;

    void setBackground(const QBrush &background);

    WindowOrder activationOrder() const;

    void setActivationOrder(WindowOrder order);

    void setOption(AreaOption option, bool on = true);

    bool testOption(AreaOption opton) const;

    void setViewMode(ViewMode mode);

    ViewMode viewMode() const;

#ifndef QT_NO_TABBAR

    bool documentMode() const;

    void setDocumentMode(bool enabled);

#endif

#ifndef QT_NO_TABWIDGET

    void setTabShape(QTabWidget::TabShape shape);

    QTabWidget::TabShape tabShape() const;

    void setTabPosition(QTabWidget::TabPosition position);

    QTabWidget::TabPosition tabPosition() const;

#endif

Q_SIGNALS:

    void subWindowActivated(QMdiSubWindow *);

public Q_SLOTS:

    void setActiveSubWindow(QMdiSubWindow *window);

    void tileSubWindows();

    void cascadeSubWindows();

    void closeActiveSubWindow();

    void closeAllSubWindows();

    void activateNextSubWindow();

    void activatePreviousSubWindow();

protected Q_SLOTS:

    void setupViewport(QWidget *viewport);

protected:

    bool event(QEvent *event);

    bool eventFilter(QObject *object, QEvent *event);

    void paintEvent(QPaintEvent *paintEvent);

    void childEvent(QChildEvent *childEvent);

    void resizeEvent(QResizeEvent *resizeEvent);

    void timerEvent(QTimerEvent *timerEvent);

    void showEvent(QShowEvent *showEvent);

    bool viewportEvent(QEvent *event);

    void scrollContentsBy(int dx, int dy);

private:

    Q_DISABLE_COPY(QMdiArea)

    Q_DECLARE_PRIVATE(QMdiArea)

    Q_PRIVATE_SLOT(d_func(), void _q_deactivateAllWindows())

    Q_PRIVATE_SLOT(d_func(), void _q_processWindowStateChanged(Qt::WindowStates, Qt::WindowStates))

    Q_PRIVATE_SLOT(d_func(), void _q_currentTabChanged(int index))

};

Q_DECLARE_OPERATORS_FOR_FLAGS(QMdiArea::AreaOptions)

QT_END_NAMESPACE

QT_END_HEADER

#endif // QT_NO_MDIAREA

#endif // QMDIAREA_H