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Diffstat (limited to 'src/gui/painting/qgraphicssystem_runtime_p.h')
| -rw-r--r-- | src/gui/painting/qgraphicssystem_runtime_p.h | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/src/gui/painting/qgraphicssystem_runtime_p.h b/src/gui/painting/qgraphicssystem_runtime_p.h new file mode 100644 index 0000000..445f83d --- /dev/null +++ b/src/gui/painting/qgraphicssystem_runtime_p.h @@ -0,0 +1,197 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the plugins 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 QGRAPHICSSYSTEM_RUNTIME_P_H +#define QGRAPHICSSYSTEM_RUNTIME_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists for the convenience +// of other Qt classes. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include "qgraphicssystem_p.h" + +#include <private/qpixmapdata_p.h> + +QT_BEGIN_NAMESPACE + +class QRuntimeGraphicsSystem; + +class QRuntimePixmapData : public QPixmapData { +public: + QRuntimePixmapData(const QRuntimeGraphicsSystem *gs, PixelType type); + ~QRuntimePixmapData(); + + virtual QPixmapData *createCompatiblePixmapData() const; + virtual void resize(int width, int height); + virtual void fromImage(const QImage &image, + Qt::ImageConversionFlags flags); + + 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; + virtual void fill(const QColor &color); + virtual QBitmap mask() const; + virtual void setMask(const QBitmap &mask); + virtual bool hasAlphaChannel() const; + virtual QPixmap transformed(const QTransform &matrix, + Qt::TransformationMode mode) const; + virtual void setAlphaChannel(const QPixmap &alphaChannel); + virtual QPixmap alphaChannel() const; + virtual QImage toImage() const; + virtual QPaintEngine *paintEngine() const; + + virtual QImage *buffer(); + + void readBackInfo(); + + QPixmapData *m_data; + +#if defined(Q_OS_SYMBIAN) + void* toNativeType(NativeType type); + void fromNativeType(void* pixmap, NativeType type); +#endif + + virtual QPixmapData *runtimeData() const; + + virtual uint memoryUsage() const; + +private: + const QRuntimeGraphicsSystem *m_graphicsSystem; + +}; + +class QRuntimeWindowSurface : public QWindowSurface { +public: + QRuntimeWindowSurface(const QRuntimeGraphicsSystem *gs, QWidget *window); + ~QRuntimeWindowSurface(); + + virtual QPaintDevice *paintDevice(); + virtual void flush(QWidget *widget, const QRegion ®ion, + const QPoint &offset); + virtual void setGeometry(const QRect &rect); + + virtual bool scroll(const QRegion &area, int dx, int dy); + + virtual void beginPaint(const QRegion &); + virtual void endPaint(const QRegion &); + + virtual QImage* buffer(const QWidget *widget); + virtual QPixmap grabWidget(const QWidget *widget, const QRect& rectangle = QRect()) const; + + virtual QPoint offset(const QWidget *widget) const; + + virtual uint memoryUsage() const; + + QWindowSurface *m_windowSurface; + QWindowSurface *m_pendingWindowSurface; + +private: + const QRuntimeGraphicsSystem *m_graphicsSystem; +}; + +class QRuntimeGraphicsSystem : public QGraphicsSystem +{ +public: + + enum WindowSurfaceDestroyPolicy + { + DestroyImmediately, + DestroyAfterFirstFlush + }; + +public: + QRuntimeGraphicsSystem(); + + QPixmapData *createPixmapData(QPixmapData::PixelType type) const; + QWindowSurface *createWindowSurface(QWidget *widget) const; + + void removePixmapData(QRuntimePixmapData *pixmapData) const; + void removeWindowSurface(QRuntimeWindowSurface *windowSurface) const; + + void setGraphicsSystem(const QString &name, uint memoryUsageLimit); + void setGraphicsSystem(const QString &name); + QString graphicsSystemName() const { return m_graphicsSystemName; } + + void setWindowSurfaceDestroyPolicy(WindowSurfaceDestroyPolicy policy) + { + m_windowSurfaceDestroyPolicy = policy; + } + + int windowSurfaceDestroyPolicy() const { return m_windowSurfaceDestroyPolicy; } + + int memoryUsage() const { return m_memoryUsage; } + +private: + + void increaseMemoryUsage(uint amount) const; + void decreaseMemoryUsage(uint amount, bool persistent = false) const; + +private: + mutable uint m_memoryUsage; + int m_windowSurfaceDestroyPolicy; + QGraphicsSystem *m_graphicsSystem; + mutable QList<QRuntimePixmapData *> m_pixmapDatas; + mutable QList<QRuntimeWindowSurface *> m_windowSurfaces; + QString m_graphicsSystemName; + + uint m_graphicsSystemChangeMemoryLimit; + QString m_pendingGraphicsSystemName; + + friend class QRuntimePixmapData; + friend class QRuntimeWindowSurface; +}; + +QT_END_NAMESPACE + +#endif |