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src/qt/include/qpicture.h
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00001 /****************************************************************************
00002 ** $Id: qt/qpicture.h   3.3.8   edited Jan 11 14:38 $
00003 **
00004 ** Definition of QPicture class
00005 **
00006 ** Created : 940729
00007 **
00008 ** Copyright (C) 1992-2007 Trolltech ASA.  All rights reserved.
00009 **
00010 ** This file is part of the kernel module of the Qt GUI Toolkit.
00011 **
00012 ** This file may be distributed under the terms of the Q Public License
00013 ** as defined by Trolltech ASA of Norway and appearing in the file
00014 ** LICENSE.QPL included in the packaging of this file.
00015 **
00016 ** This file may be distributed and/or modified under the terms of the
00017 ** GNU General Public License version 2 as published by the Free Software
00018 ** Foundation and appearing in the file LICENSE.GPL included in the
00019 ** packaging of this file.
00020 **
00021 ** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
00022 ** licenses may use this file in accordance with the Qt Commercial License
00023 ** Agreement provided with the Software.
00024 **
00025 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
00026 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
00027 **
00028 ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
00029 **   information about Qt Commercial License Agreements.
00030 ** See http://www.trolltech.com/qpl/ for QPL licensing information.
00031 ** See http://www.trolltech.com/gpl/ for GPL licensing information.
00032 **
00033 ** Contact info@trolltech.com if any conditions of this licensing are
00034 ** not clear to you.
00035 **
00036 **********************************************************************/
00037 
00038 #ifndef QPICTURE_H
00039 #define QPICTURE_H
00040 
00041 #ifndef QT_H
00042 #include "qpaintdevice.h"
00043 #include "qbuffer.h"
00044 #endif // QT_H
00045 
00046 #ifndef QT_NO_PICTURE
00047 
00048 class Q_EXPORT QPicture : public QPaintDevice           // picture class
00049 {
00050 public:
00051     QPicture( int formatVersion = -1 );
00052     QPicture( const QPicture & );
00053    ~QPicture();
00054 
00055     bool        isNull() const;
00056 
00057     uint        size() const;
00058     const char* data() const;
00059     virtual void setData( const char* data, uint size );
00060 
00061     bool        play( QPainter * );
00062 
00063     bool        load( QIODevice *dev, const char *format = 0 );
00064     bool        load( const QString &fileName, const char *format = 0 );
00065     bool        save( QIODevice *dev, const char *format = 0 );
00066     bool        save( const QString &fileName, const char *format = 0 );
00067 
00068     QRect boundingRect() const;
00069     void setBoundingRect( const QRect &r );
00070 
00071     QPicture& operator= (const QPicture&);
00072 
00073     friend Q_EXPORT QDataStream &operator<<( QDataStream &, const QPicture & );
00074     friend Q_EXPORT QDataStream &operator>>( QDataStream &, QPicture & );
00075 
00076 protected:
00077     bool        cmd( int, QPainter *, QPDevCmdParam * );
00078     int         metric( int ) const;
00079     void        detach();
00080     QPicture    copy() const;
00081 
00082 private:
00083     bool        exec( QPainter *, QDataStream &, int );
00084 
00085     struct QPicturePrivate : public QShared {
00086         bool    cmd( int, QPainter *, QPDevCmdParam * );
00087         bool    checkFormat();
00088         void    resetFormat();
00089 
00090         QBuffer pictb;
00091         int     trecs;
00092         bool    formatOk;
00093         int     formatMajor;
00094         int     formatMinor;
00095         QRect   brect;
00096     } *d;
00097 };
00098 
00099 
00100 inline bool QPicture::isNull() const
00101 {
00102     return d->pictb.buffer().isNull();
00103 }
00104 
00105 inline uint QPicture::size() const
00106 {
00107     return d->pictb.buffer().size();
00108 }
00109 
00110 inline const char* QPicture::data() const
00111 {
00112     return d->pictb.buffer().data();
00113 }
00114 
00115 /*****************************************************************************
00116   QPicture stream functions
00117  *****************************************************************************/
00118 
00119 Q_EXPORT QDataStream &operator<<( QDataStream &, const QPicture & );
00120 Q_EXPORT QDataStream &operator>>( QDataStream &, QPicture & );
00121 
00122 #endif // QT_NO_PICTURE
00123 
00124 #endif // QPICTURE_H
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