qdesigner_menu_p.h

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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
 
//
//  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_MENU_H
#define QDESIGNER_MENU_H
 
#include "shared_global_p.h"
 
#include <QtWidgets/qmenu.h>
 
#include <QtGui/qaction.h>
#include <QtGui/qpixmap.h>
 
#include <QtCore/qhash.h>
 
QT_BEGIN_NAMESPACE
 
class QTimer;
class QLineEdit;
 
class QDesignerFormWindowInterface;
class QDesignerActionProviderExtension;
class QDesignerMenu;
class QDesignerMenuBar;
class QPainter;
class QMimeData;
 
namespace qdesigner_internal {
    class CreateSubmenuCommand;
    class ActionInsertionCommand;
}
 
class QDESIGNER_SHARED_EXPORT QDesignerMenu: public QMenu
{
    Q_OBJECT
public:
    QDesignerMenu(QWidget *parent = nullptr);
    ~QDesignerMenu() override;
 
    bool eventFilter(QObject *object, QEvent *event) override;
 
    QDesignerFormWindowInterface *formWindow() const;
    QDesignerActionProviderExtension *actionProvider();
 
    QDesignerMenu *parentMenu() const;
    QDesignerMenuBar *parentMenuBar() const;
 
    void setVisible(bool visible) override;
 
    void adjustSpecialActions();
 
    void createRealMenuAction(QAction *action);
    void removeRealMenu(QAction *action);
 
    static void drawSelection(QPainter *p, const QRect &r);
 
    bool dragging() const;
 
    void closeMenuChain();
 
    void moveLeft();
    void moveRight();
    void moveUp(bool ctrl);
    void moveDown(bool ctrl);
 
    // Helper for MenuTaskMenu extension
    void deleteAction(QAction *a);
 
private slots:
    void slotAddSeparator();
    void slotRemoveSelectedAction();
    void slotShowSubMenuNow();
    void slotDeactivateNow();
    void slotAdjustSizeNow();
 
protected:
    void actionEvent(QActionEvent *event) override;
    void dragEnterEvent(QDragEnterEvent *event) override;
    void dragMoveEvent(QDragMoveEvent *event) override;
    void dragLeaveEvent(QDragLeaveEvent *event) override;
    void dropEvent(QDropEvent *event) override;
    void paintEvent(QPaintEvent *event) override;
    void keyPressEvent(QKeyEvent *event) override;
    void keyReleaseEvent(QKeyEvent *event) override;
    void showEvent(QShowEvent *event) override;
 
    bool handleEvent(QWidget *widget, QEvent *event);
    bool handleMouseDoubleClickEvent(QWidget *widget, QMouseEvent *event);
    bool handleMousePressEvent(QWidget *widget, QMouseEvent *event);
    bool handleMouseReleaseEvent(QWidget *widget, QMouseEvent *event);
    bool handleMouseMoveEvent(QWidget *widget, QMouseEvent *event);
    bool handleContextMenuEvent(QWidget *widget, QContextMenuEvent *event);
    bool handleKeyPressEvent(QWidget *widget, QKeyEvent *event);
 
    void startDrag(const QPoint &pos, Qt::KeyboardModifiers modifiers);
 
    void adjustIndicator(const QPoint &pos);
    int findAction(const QPoint &pos) const;
 
    QAction *currentAction() const;
    int realActionCount() const;
    enum ActionDragCheck { NoActionDrag, ActionDragOnSubMenu, AcceptActionDrag };
    ActionDragCheck checkAction(QAction *action) const;
 
    void showSubMenu(QAction *action);
 
    enum LeaveEditMode {
        Default = 0,
        ForceAccept
    };
 
    void enterEditMode();
    void leaveEditMode(LeaveEditMode mode);
    void showLineEdit();
 
    QAction *createAction(const QString &text, bool separator = false);
    QDesignerMenu *findOrCreateSubMenu(QAction *action);
 
    QAction *safeActionAt(int index) const;
    QAction *safeMenuAction(QDesignerMenu *menu) const;
    bool swap(int a, int b);
 
    void hideSubMenu();
    void deleteAction();
    void deactivateMenu();
 
    bool canCreateSubMenu(QAction *action) const;
    QDesignerMenu *findRootMenu() const;
    QDesignerMenu *findActivatedMenu() const;
 
    QRect subMenuPixmapRect(QAction *action) const;
    bool hasSubMenuPixmap(QAction *action) const;
 
    void selectCurrentAction();
 
private:
    bool hideSubMenuOnCursorKey();
    bool showSubMenuOnCursorKey();
    const QPixmap m_subMenuPixmap;
 
    QPoint m_startPosition;
    int m_currentIndex = 0;
    QAction *m_addItem;
    QAction *m_addSeparator;
    QHash<QAction*, QDesignerMenu*> m_subMenus;
    QTimer *m_showSubMenuTimer;
    QTimer *m_deactivateWindowTimer;
    QTimer *m_adjustSizeTimer;
    QLineEdit *m_editor;
    bool m_dragging = false;
    int m_lastSubMenuIndex = -1;
 
    friend class qdesigner_internal::CreateSubmenuCommand;
    friend class qdesigner_internal::ActionInsertionCommand;
};
 
QT_END_NAMESPACE
 
#endif // QDESIGNER_MENU_H