src/gui/image/qpixmapdata_p.h
changeset 0 1918ee327afb
child 3 41300fa6a67c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/gui/image/qpixmapdata_p.h	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,159 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QPIXMAPDATA_P_H
+#define QPIXMAPDATA_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtGui/qpixmap.h>
+#include <QtCore/qatomic.h>
+
+QT_BEGIN_NAMESPACE
+
+class Q_GUI_EXPORT QPixmapData
+{
+public:
+    enum PixelType {
+        // WARNING: Do not change the first two
+        // Must match QPixmap::Type
+        PixmapType, BitmapType
+    };
+#if defined(Q_OS_SYMBIAN)
+    enum NativeType {
+        FbsBitmap,
+        SgImage
+    };
+#endif
+    enum ClassId { RasterClass, X11Class, MacClass, DirectFBClass,
+                   OpenGLClass, OpenVGClass, CustomClass = 1024 };
+
+    QPixmapData(PixelType pixelType, int classId);
+    virtual ~QPixmapData();
+
+    virtual QPixmapData *createCompatiblePixmapData() const;
+
+    virtual void resize(int width, int height) = 0;
+    virtual void fromImage(const QImage &image,
+                           Qt::ImageConversionFlags flags) = 0;
+
+    virtual bool fromFile(const QString &filename, const char *format,
+                          Qt::ImageConversionFlags flags);
+    virtual bool fromData(const uchar *buffer, uint len, const char *format,
+                          Qt::ImageConversionFlags flags);
+
+    virtual void copy(const QPixmapData *data, const QRect &rect);
+    virtual bool scroll(int dx, int dy, const QRect &rect);
+
+    virtual int metric(QPaintDevice::PaintDeviceMetric metric) const = 0;
+    virtual void fill(const QColor &color) = 0;
+    virtual QBitmap mask() const;
+    virtual void setMask(const QBitmap &mask);
+    virtual bool hasAlphaChannel() const = 0;
+    virtual QPixmap transformed(const QTransform &matrix,
+                                Qt::TransformationMode mode) const;
+    virtual void setAlphaChannel(const QPixmap &alphaChannel);
+    virtual QPixmap alphaChannel() const;
+    virtual QImage toImage() const = 0;
+    virtual QPaintEngine* paintEngine() const = 0;
+
+    inline int serialNumber() const { return ser_no; }
+
+    inline PixelType pixelType() const { return type; }
+    inline ClassId classId() const { return static_cast<ClassId>(id); }
+
+    virtual QImage* buffer();
+
+    inline int width() const { return w; }
+    inline int height() const { return h; }
+    inline int numColors() const { return metric(QPaintDevice::PdmNumColors); }
+    inline int depth() const { return d; }
+    inline bool isNull() const { return is_null; }
+
+#if defined(Q_OS_SYMBIAN)
+    virtual void* toNativeType(NativeType type);
+    virtual void fromNativeType(void* pixmap, NativeType type);
+#endif
+
+protected:
+    void setSerialNumber(int serNo);
+    int w;
+    int h;
+    int d;
+    bool is_null;
+
+private:
+    friend class QPixmap;
+    friend class QGLContextPrivate;
+    friend class QX11PixmapData;
+    friend class QS60PixmapData;
+    friend class QGLTextureCache; //Needs to check the reference count
+    friend class QExplicitlySharedDataPointer<QPixmapData>;
+    friend bool qt_createEGLSurfaceForPixmap(QPixmapData*, bool); // Needs to set is_cached
+
+    QAtomicInt ref;
+    int detach_no;
+
+    PixelType type;
+    int id;
+    int ser_no;
+    uint is_cached;
+};
+
+#  define QT_XFORM_TYPE_MSBFIRST 0
+#  define QT_XFORM_TYPE_LSBFIRST 1
+#  if defined(Q_WS_WIN)
+#    define QT_XFORM_TYPE_WINDOWSPIXMAP 2
+#  endif
+extern bool qt_xForm_helper(const QTransform&, int, int, int, uchar*, int, int, int, const uchar*, int, int, int);
+
+QT_END_NAMESPACE
+
+#endif // QPIXMAPDATA_P_H