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# qtprivate_pixmapdata_p.h

    00001 /****************************************************************************
    00002 **
    00003 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
    00004 ** Contact: Qt Software Information (qt-info@nokia.com)
    00005 **
    00006 ** This file is part of the QtGui module of the Qt Toolkit.
    00007 **
    00008 ** $QT_BEGIN_LICENSE:LGPL$
    00009 ** Commercial Usage
    00010 ** Licensees holding valid Qt Commercial licenses may use this file in
    00011 ** accordance with the Qt Commercial License Agreement provided with the
    00012 ** Software or, alternatively, in accordance with the terms contained in
    00013 ** a written agreement between you and Nokia.
    00014 **
    00015 ** GNU Lesser General Public License Usage
    00016 ** Alternatively, this file may be used under the terms of the GNU Lesser
    00017 ** General Public License version 2.1 as published by the Free Software
    00018 ** Foundation and appearing in the file LICENSE.LGPL included in the
    00019 ** packaging of this file.  Please review the following information to
    00020 ** ensure the GNU Lesser General Public License version 2.1 requirements
    00021 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
    00022 **
    00023 ** In addition, as a special exception, Nokia gives you certain
    00024 ** additional rights. These rights are described in the Nokia Qt LGPL
    00025 ** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
    00026 ** package.
    00027 **
    00028 ** GNU General Public License Usage
    00029 ** Alternatively, this file may be used under the terms of the GNU
    00030 ** General Public License version 3.0 as published by the Free Software
    00031 ** Foundation and appearing in the file LICENSE.GPL included in the
    00032 ** packaging of this file.  Please review the following information to
    00033 ** ensure the GNU General Public License version 3.0 requirements will be
    00034 ** met: http://www.gnu.org/copyleft/gpl.html.
    00035 **
    00036 ** If you are unsure which license is appropriate for your use, please
    00037 ** contact the sales department at qt-sales@nokia.com.
    00038 ** $QT_END_LICENSE$
    00039 **
    00040 ****************************************************************************/
    00041
    00042 #ifndef QPIXMAPDATA_P_H
    00043 #define QPIXMAPDATA_P_H
    00044
    00045 //
    00046 //  W A R N I N G
    00047 //  -------------
    00048 //
    00049 // This file is not part of the Qt API.  It exists purely as an
    00050 // implementation detail.  This header file may change from version to
    00051 // version without notice, or even be removed.
    00052 //
    00053 // We mean it.
    00054 //
    00055
    00056 #include <QtGui/qpixmap.h>
    00057 #include <QtCore/qatomic.h>
    00058
    00059 QT_BEGIN_NAMESPACE
    00060
    00061 class Q_GUI_EXPORT QPixmapData
    00062 {
    00063 public:
    00064     enum PixelType {
    00065         // WARNING: Do not change the first two
    00066         // Must match QPixmap::Type
    00067         PixmapType, BitmapType
    00068     };
    00069     enum ClassId { RasterClass, X11Class, MacClass, DirectFBClass,
    00070                    OpenGLClass, OpenVGClass, CustomClass = 1024 };
    00071
    00072     QPixmapData(PixelType pixelpType, int classId);
    00073     virtual ~QPixmapData();
    00074
    00075     virtual void resize(int width, int height) = 0;
    00076     virtual void fromImage(const QImage &image,
    00077                            Qt::ImageConversionFlags flags) = 0;
    00078     virtual void fromFile(const QString &filename, const char *format,
    00079                           Qt::ImageConversionFlags flags);
    00080     virtual void copy(const QPixmapData *data, const QRect &rect);
    00081
    00082     virtual int metric(QPaintDevice::PaintDeviceMetric metric) const = 0;
    00083     virtual void fill(const QColor &color) = 0;
    00084     virtual QBitmap mask() const;
    00085     virtual void setMask(const QBitmap &mask);
    00086     virtual bool hasAlphaChannel() const = 0;
    00087     virtual QPixmap transformed(const QTransform &matrix,
    00088                                 Qt::TransformationMode mode) const;
    00089     virtual void setAlphaChannel(const QPixmap &alphaChannel);
    00090     virtual QPixmap alphaChannel() const;
    00091     virtual QImage toImage() const = 0;
    00092     virtual QPaintEngine* paintEngine() const = 0;
    00093
    00094     inline int serialNumber() const { return ser_no; }
    00095
    00096     inline PixelType pixelType() const { return type; }
    00097     inline ClassId classId() const { return static_cast<ClassId>(id); }
    00098
    00099     virtual QImage* buffer();
    00100
    00101     int width() const { return metric(QPaintDevice::PdmWidth); }
    00102     int height() const { return metric(QPaintDevice::PdmHeight); }
    00103     int numColors() const { return metric(QPaintDevice::PdmNumColors); }
    00104     int depth() const { return metric(QPaintDevice::PdmDepth); }
    00105
    00106 protected:
    00107     void setSerialNumber(int serNo);
    00108
    00109 private:
    00110     friend class QPixmap;
    00111     friend class QGLContextPrivate;
    00112     friend class QX11PixmapData;
    00113
    00114     QAtomicInt ref;
    00115     int detach_no;
    00116
    00117     PixelType type;
    00118     int id;
    00119     int ser_no;
    00120     uint is_cached;
    00121 };
    00122
    00123 #ifdef Q_WS_WIN
    00124 #ifndef Q_OS_WINCE
    00125 QPixmap convertHIconToPixmap( const HICON icon);
    00126 #else
    00127 QPixmap convertHIconToPixmap( const HICON icon, bool large = false);
    00128 #endif
    00129 QPixmap loadIconFromShell32( int resourceId, int size );
    00130 #endif
    00131
    00132 #  define QT_XFORM_TYPE_MSBFIRST 0
    00133 #  define QT_XFORM_TYPE_LSBFIRST 1
    00134 #  if defined(Q_WS_WIN)
    00135 #    define QT_XFORM_TYPE_WINDOWSPIXMAP 2
    00136 #  endif
    00137 extern bool qt_xForm_helper(const QTransform&, int, int, int, uchar*, int, int, int, const uchar*, int, int, int);
    00138
    00139 QT_END_NAMESPACE
    00140
    00141 #endif // QPIXMAPDATA_P_H