slideshowui.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 SLIDESHOWUI_H
#define SLIDESHOWUI_H

#include <qtopia/applnk.h>

#include <qwidget.h>
#include <qpixmap.h>
#include <qpoint.h>
#include <qstring.h>

class SlideShowUI : public QWidget {
    Q_OBJECT
public:
    SlideShowUI( QWidget* parent = 0, const char* name = 0, WFlags f = 0 );

signals:
    // Only Qtopia PDA
    // Stylus pressed
    void pressed();
    
public slots:
    // Set image to display
    void setImage( const DocLnk& );
    
    // If true, display name of image
    void setDisplayName( bool b ) { display_name = b; }
    
protected:
    // Draw scaled image onto widget
    void paintEvent( QPaintEvent* );

    // Update image position
    void resizeEvent( QResizeEvent* );
    
#ifdef QTOPIA_PHONE
    void keyPressEvent( QKeyEvent* );
#endif

    // Transform stylus presses into signals
    void mousePressEvent( QMouseEvent* );
    
private:
    // Reduce long names to fit on display 
    void calculateFittedName();

    bool display_name;
    QString fitted_name;

    DocLnk image;
    QPixmap image_buffer;
    QPoint image_position;
};

#endif