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Diffstat (limited to 'src/gui/image/qpicture.h')
| -rw-r--r-- | src/gui/image/qpicture.h | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/src/gui/image/qpicture.h b/src/gui/image/qpicture.h new file mode 100644 index 0000000..fe86e8d --- /dev/null +++ b/src/gui/image/qpicture.h @@ -0,0 +1,196 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (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 either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QPICTURE_H +#define QPICTURE_H + +#include <QtGui/qpaintdevice.h> +#include <QtCore/qstringlist.h> + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +QT_MODULE(Gui) + +#ifndef QT_NO_PICTURE + +class QPicturePrivate; +class Q_GUI_EXPORT QPicture : public QPaintDevice +{ + Q_DECLARE_PRIVATE(QPicture) +public: + explicit QPicture(int formatVersion = -1); + QPicture(const QPicture &); + ~QPicture(); + + bool isNull() const; + + int devType() const; + uint size() const; + const char* data() const; + virtual void setData(const char* data, uint size); + + bool play(QPainter *p); + + bool load(QIODevice *dev, const char *format = 0); + bool load(const QString &fileName, const char *format = 0); + bool save(QIODevice *dev, const char *format = 0); + bool save(const QString &fileName, const char *format = 0); + + QRect boundingRect() const; + void setBoundingRect(const QRect &r); + + QPicture& operator=(const QPicture &p); + void detach(); + bool isDetached() const; + + friend Q_GUI_EXPORT QDataStream &operator<<(QDataStream &in, const QPicture &p); + friend Q_GUI_EXPORT QDataStream &operator>>(QDataStream &in, QPicture &p); + + static const char* pictureFormat(const QString &fileName); + static QList<QByteArray> inputFormats(); + static QList<QByteArray> outputFormats(); + static QStringList inputFormatList(); + static QStringList outputFormatList(); + + QPaintEngine *paintEngine() const; + +protected: + QPicture(QPicturePrivate &data); + + int metric(PaintDeviceMetric m) const; +#ifdef QT3_SUPPORT + inline QT3_SUPPORT QPicture copy() const { QPicture p(*this); p.detach(); return p; } +#endif + +private: + bool exec(QPainter *p, QDataStream &ds, int i); + void detach_helper(); + + QPicturePrivate *d_ptr; + friend class QPicturePaintEngine; + friend class Q3Picture; + friend class QAlphaPaintEngine; + friend class QPreviewPaintEngine; + +public: + typedef QPicturePrivate* DataPtr; + inline DataPtr &data_ptr() { return d_ptr; } +}; + +Q_DECLARE_SHARED(QPicture) + + +#ifndef QT_NO_PICTUREIO +class QIODevice; +class QPictureIO; +typedef void (*picture_io_handler)(QPictureIO *); // picture IO handler + +struct QPictureIOData; + +class Q_GUI_EXPORT QPictureIO +{ +public: + QPictureIO(); + QPictureIO(QIODevice *ioDevice, const char *format); + QPictureIO(const QString &fileName, const char *format); + ~QPictureIO(); + + const QPicture &picture() const; + int status() const; + const char *format() const; + QIODevice *ioDevice() const; + QString fileName() const; + int quality() const; + QString description() const; + const char *parameters() const; + float gamma() const; + + void setPicture(const QPicture &); + void setStatus(int); + void setFormat(const char *); + void setIODevice(QIODevice *); + void setFileName(const QString &); + void setQuality(int); + void setDescription(const QString &); + void setParameters(const char *); + void setGamma(float); + + bool read(); + bool write(); + + static QByteArray pictureFormat(const QString &fileName); + static QByteArray pictureFormat(QIODevice *); + static QList<QByteArray> inputFormats(); + static QList<QByteArray> outputFormats(); + + static void defineIOHandler(const char *format, + const char *header, + const char *flags, + picture_io_handler read_picture, + picture_io_handler write_picture); + +private: + Q_DISABLE_COPY(QPictureIO) + + void init(); + + QPictureIOData *d; +}; + +#endif //QT_NO_PICTUREIO + + +/***************************************************************************** + QPicture stream functions + *****************************************************************************/ + +Q_GUI_EXPORT QDataStream &operator<<(QDataStream &, const QPicture &); +Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QPicture &); + +#endif // QT_NO_PICTURE + +QT_END_NAMESPACE + +QT_END_HEADER + +#endif // QPICTURE_H |