contextmenu.h

Trolltech公司发布的图形界面操作系统。可在qt-embedded-2.3.10平台上编译为嵌入式图形界面操作系统。

/**********************************************************************
** Copyright (C) 2000-2005 Trolltech AS.  All rights reserved.
**
** This file is part of the Qtopia Environment.
** 
** This program is free software; you can redistribute it and/or modify it
** under the terms of the GNU General Public License as published by the
** Free Software Foundation; either version 2 of the License, or (at your
** option) any later version.
** 
** A copy of the GNU GPL license version 2 is included in this package as 
** LICENSE.GPL.
**
** This program is distributed in the hope that it will be useful, but
** WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
** See the GNU General Public License for more details.
**
** In addition, as a special exception Trolltech gives permission to link
** the code of this program with Qtopia applications copyrighted, developed
** and distributed by Trolltech under the terms of the Qtopia Personal Use
** License Agreement. You must comply with the GNU General Public License
** in all respects for all of the code used other than the applications
** licensed under the Qtopia Personal Use License Agreement. If you modify
** this file, you may extend this exception to your version of the file,
** but you are not obligated to do so. If you do not wish to do so, delete
** this exception statement from your version.
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** See http://www.trolltech.com/gpl/ for GPL licensing information.
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**********************************************************************/
#ifndef CONTEXT_MENU_H 
#define CONTEXT_MENU_H 

#include <qpopupmenu.h>

#ifdef QTOPIA_PHONE

class QPopupMenu;
class ContextMenuData;
class QAction;

class ContextMenu : public QPopupMenu
{
    Q_OBJECT
public:
    enum EditingState {
	Modal=1, NonModal=2
    };

    ContextMenu(QWidget *parent=0, const char *name=0, int state=0);
    ~ContextMenu();


    void setEnableHelp(bool b);

    void addTo(QWidget *w, int state=0);
    void removeFrom(QWidget *w, int state=0);

    void insertAction(QAction *, int idx=-1);
    void addAction(QAction *);

    void popup();
    void popup(const QPoint &pos);

    virtual bool helpExists() const;

    static int key();
    static ContextMenu *menuFor(QWidget *w, int state=0);

public slots:
    virtual void help();

protected:
    bool eventFilter(QObject *o, QEvent *e);
    void keyPressEvent(QKeyEvent *);
    void keyReleaseEvent(QKeyEvent *);
    void mouseReleaseEvent(QMouseEvent *);

private slots:
    void editMenuActivated(int);
    void widgetDestroyed();

private:
    void init();
    static ContextMenu *internalMenuFor(QWidget *w, int state);
    static ContextMenu *createEditMenu(QWidget *w, int state);

private:
    ContextMenuData *d;

    friend class QPEApplication;
};

#endif

#endif