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//

//  W A R N I N G

//  -------------

//

// This file is not part of the Qt API.  It exists for the convenience

// of Qt Designer.  This header

// file may change from version to version without notice, or even be removed.

//

// We mean it.

//

#ifndef QDESIGNER_TOOLBAR_H

#define QDESIGNER_TOOLBAR_H

#include "shared_global_p.h"

#include <QtGui/QAction>

#include <QtGui/QToolButton>

#include <QtCore/QList>

#include <QtCore/QPoint>

QT_BEGIN_NAMESPACE

class QDesignerFormWindowInterface;

class QToolBar;

class QRect;

class QAction;

namespace qdesigner_internal {

class PromotionTaskMenu;

// Special event filter for  tool bars in designer.

// Handles drag and drop to and from. Ensures that each

// child widget is  WA_TransparentForMouseEvents to enable  drag and drop.

class QDESIGNER_SHARED_EXPORT ToolBarEventFilter : public QObject {

    Q_OBJECT

public:

    static void install(QToolBar *tb);

    // Find action by position. Note that QToolBar::actionAt() will

    // not work as designer sets WA_TransparentForMouseEvents on its tool bar buttons

    // to be able to drag them. This function will return the dummy

    // sentinel action when applied to tool bars created by designer if the position matches.

    static QAction *actionAt(const QToolBar *tb, const QPoint &pos);

    static bool withinHandleArea(const QToolBar *tb, const QPoint &pos);

    static QRect handleArea(const QToolBar *tb);

    static QRect freeArea(const QToolBar *tb);

    // Utility to create an action

    static QAction *createAction(QDesignerFormWindowInterface *fw, const QString &objectName, bool separator);

    virtual bool eventFilter (QObject *watched, QEvent *event);

    // Helper for task menu extension

    QList<QAction *> contextMenuActions(const QPoint &globalPos = QPoint(-1, -1));

    static ToolBarEventFilter *eventFilterOf(const QToolBar *tb);

private slots:

    void slotRemoveSelectedAction();

    void slotRemoveToolBar();

    void slotInsertSeparator();

private:

    explicit ToolBarEventFilter(QToolBar *tb);

    bool handleContextMenuEvent(QContextMenuEvent * event);

    bool handleDragEnterMoveEvent(QDragMoveEvent *event);

    bool handleDragLeaveEvent(QDragLeaveEvent *);

    bool handleDropEvent(QDropEvent *event);

    bool handleMousePressEvent(QMouseEvent *event);

    bool handleMouseReleaseEvent(QMouseEvent *event);

    bool handleMouseMoveEvent(QMouseEvent *event);

    QDesignerFormWindowInterface *formWindow() const;

    void adjustDragIndicator(const QPoint &pos);

    void hideDragIndicator();

    void startDrag(const QPoint &pos, Qt::KeyboardModifiers modifiers);

    bool withinHandleArea(const QPoint &pos) const;

    QToolBar *m_toolBar;

    PromotionTaskMenu *m_promotionTaskMenu;

    QPoint m_startPosition;

};

} // namespace qdesigner_internal

QT_END_NAMESPACE

#endif // QDESIGNER_TOOLBAR_H