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Diffstat (limited to 'src/gui/image/qpixmap.h')
| -rw-r--r-- | src/gui/image/qpixmap.h | 335 |
1 files changed, 335 insertions, 0 deletions
diff --git a/src/gui/image/qpixmap.h b/src/gui/image/qpixmap.h new file mode 100644 index 0000000000..f2e79c14f4 --- /dev/null +++ b/src/gui/image/qpixmap.h @@ -0,0 +1,335 @@ +/**************************************************************************** +** +** Copyright (C) 2011 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 QPIXMAP_H +#define QPIXMAP_H + +#include <QtGui/qpaintdevice.h> +#include <QtGui/qcolor.h> +#include <QtCore/qnamespace.h> +#include <QtCore/qstring.h> // char*->QString conversion +#include <QtCore/qsharedpointer.h> +#include <QtGui/qimage.h> +#include <QtGui/qtransform.h> + +QT_BEGIN_HEADER + +#if defined(Q_OS_SYMBIAN) +class CFbsBitmap; +class RSgImage; +#endif + +QT_BEGIN_NAMESPACE + +QT_MODULE(Gui) + +class QImageWriter; +class QImageReader; +class QColor; +class QVariant; +class QX11Info; +class QPixmapData; + +class Q_GUI_EXPORT QPixmap : public QPaintDevice +{ +public: + QPixmap(); + explicit QPixmap(QPixmapData *data); + QPixmap(int w, int h); + QPixmap(const QSize &); + QPixmap(const QString& fileName, const char *format = 0, Qt::ImageConversionFlags flags = Qt::AutoColor); +#ifndef QT_NO_IMAGEFORMAT_XPM + QPixmap(const char * const xpm[]); +#endif + QPixmap(const QPixmap &); + ~QPixmap(); + + QPixmap &operator=(const QPixmap &); +#ifdef Q_COMPILER_RVALUE_REFS + inline QPixmap &operator=(QPixmap &&other) + { qSwap(data, other.data); return *this; } +#endif + inline void swap(QPixmap &other) { qSwap(data, other.data); } + + operator QVariant() const; + + bool isNull() const; // ### Qt 5: make inline + int devType() const; + + int width() const; // ### Qt 5: make inline + int height() const; // ### Qt 5: make inline + QSize size() const; + QRect rect() const; + int depth() const; + + static int defaultDepth(); + + void fill(const QColor &fillColor = Qt::white); + void fill(const QWidget *widget, const QPoint &ofs); + inline void fill(const QWidget *widget, int xofs, int yofs) { fill(widget, QPoint(xofs, yofs)); } + + QBitmap mask() const; + void setMask(const QBitmap &); + + QPixmap alphaChannel() const; + void setAlphaChannel(const QPixmap &); + + bool hasAlpha() const; + bool hasAlphaChannel() const; + +#ifndef QT_NO_IMAGE_HEURISTIC_MASK + QBitmap createHeuristicMask(bool clipTight = true) const; +#endif + QBitmap createMaskFromColor(const QColor &maskColor) const; // ### Qt 5: remove + QBitmap createMaskFromColor(const QColor &maskColor, Qt::MaskMode mode) const; + + static QPixmap grabWindow(WId, int x=0, int y=0, int w=-1, int h=-1); + static QPixmap grabWidget(QWidget *widget, const QRect &rect); + static inline QPixmap grabWidget(QWidget *widget, int x=0, int y=0, int w=-1, int h=-1) + { return grabWidget(widget, QRect(x, y, w, h)); } + + + inline QPixmap scaled(int w, int h, Qt::AspectRatioMode aspectMode = Qt::IgnoreAspectRatio, + Qt::TransformationMode mode = Qt::FastTransformation) const + { return scaled(QSize(w, h), aspectMode, mode); } + QPixmap scaled(const QSize &s, Qt::AspectRatioMode aspectMode = Qt::IgnoreAspectRatio, + Qt::TransformationMode mode = Qt::FastTransformation) const; + QPixmap scaledToWidth(int w, Qt::TransformationMode mode = Qt::FastTransformation) const; + QPixmap scaledToHeight(int h, Qt::TransformationMode mode = Qt::FastTransformation) const; + QPixmap transformed(const QMatrix &, Qt::TransformationMode mode = Qt::FastTransformation) const; + static QMatrix trueMatrix(const QMatrix &m, int w, int h); + QPixmap transformed(const QTransform &, Qt::TransformationMode mode = Qt::FastTransformation) const; + static QTransform trueMatrix(const QTransform &m, int w, int h); + + QImage toImage() const; + static QPixmap fromImage(const QImage &image, Qt::ImageConversionFlags flags = Qt::AutoColor); + static QPixmap fromImageReader(QImageReader *imageReader, Qt::ImageConversionFlags flags = Qt::AutoColor); + + bool load(const QString& fileName, const char *format = 0, Qt::ImageConversionFlags flags = Qt::AutoColor); + bool loadFromData(const uchar *buf, uint len, const char* format = 0, Qt::ImageConversionFlags flags = Qt::AutoColor); + inline bool loadFromData(const QByteArray &data, const char* format = 0, Qt::ImageConversionFlags flags = Qt::AutoColor); + bool save(const QString& fileName, const char* format = 0, int quality = -1) const; + bool save(QIODevice* device, const char* format = 0, int quality = -1) const; + + bool convertFromImage(const QImage &img, Qt::ImageConversionFlags flags = Qt::AutoColor); + +#if defined(Q_WS_WIN) + enum HBitmapFormat { + NoAlpha, + PremultipliedAlpha, + Alpha + }; + + HBITMAP toWinHBITMAP(HBitmapFormat format = NoAlpha) const; + HICON toWinHICON() const; + + static QPixmap fromWinHBITMAP(HBITMAP hbitmap, HBitmapFormat format = NoAlpha); + static QPixmap fromWinHICON(HICON hicon); +#endif + +#if defined(Q_WS_MAC) + CGImageRef toMacCGImageRef() const; + static QPixmap fromMacCGImageRef(CGImageRef image); +#endif + +#if defined(Q_OS_SYMBIAN) + CFbsBitmap *toSymbianCFbsBitmap() const; + static QPixmap fromSymbianCFbsBitmap(CFbsBitmap *bitmap); + RSgImage* toSymbianRSgImage() const; + static QPixmap fromSymbianRSgImage(RSgImage *sgImage); +#endif + + inline QPixmap copy(int x, int y, int width, int height) const; + QPixmap copy(const QRect &rect = QRect()) const; + + inline void scroll(int dx, int dy, int x, int y, int width, int height, QRegion *exposed = 0); + void scroll(int dx, int dy, const QRect &rect, QRegion *exposed = 0); + + int serialNumber() const; + qint64 cacheKey() const; + + bool isDetached() const; + void detach(); + + bool isQBitmap() const; + +#if defined(Q_WS_QWS) + const uchar *qwsBits() const; + int qwsBytesPerLine() const; + QRgb *clut() const; +#ifdef QT_DEPRECATED + QT_DEPRECATED int numCols() const; +#endif + int colorCount() const; +#elif defined(Q_WS_MAC) + Qt::HANDLE macQDHandle() const; + Qt::HANDLE macQDAlphaHandle() const; + Qt::HANDLE macCGHandle() const; +#elif defined(Q_WS_X11) + enum ShareMode { ImplicitlyShared, ExplicitlyShared }; + + static QPixmap fromX11Pixmap(Qt::HANDLE pixmap, ShareMode mode = ImplicitlyShared); + static int x11SetDefaultScreen(int screen); + void x11SetScreen(int screen); + const QX11Info &x11Info() const; + Qt::HANDLE x11PictureHandle() const; +#endif + +#if defined(Q_WS_X11) || defined(Q_WS_QWS) + Qt::HANDLE handle() const; +#endif + + QPaintEngine *paintEngine() const; + + inline bool operator!() const { return isNull(); } + +protected: + int metric(PaintDeviceMetric) const; + +#ifdef QT3_SUPPORT +public: + enum ColorMode { Auto, Color, Mono }; + QT3_SUPPORT_CONSTRUCTOR QPixmap(const QString& fileName, const char *format, ColorMode mode); + QT3_SUPPORT bool load(const QString& fileName, const char *format, ColorMode mode); + QT3_SUPPORT bool loadFromData(const uchar *buf, uint len, const char* format, ColorMode mode); + QT3_SUPPORT_CONSTRUCTOR QPixmap(const QImage& image); + QT3_SUPPORT QPixmap &operator=(const QImage &); + inline QT3_SUPPORT QImage convertToImage() const { return toImage(); } + QT3_SUPPORT bool convertFromImage(const QImage &, ColorMode mode); + inline QT3_SUPPORT operator QImage() const { return toImage(); } + inline QT3_SUPPORT QPixmap xForm(const QMatrix &matrix) const { return transformed(QTransform(matrix)); } + inline QT3_SUPPORT bool selfMask() const { return false; } +private: + void resize_helper(const QSize &s); +public: + inline QT3_SUPPORT void resize(const QSize &s) { resize_helper(s); } + inline QT3_SUPPORT void resize(int width, int height) { resize_helper(QSize(width, height)); } +#endif + +private: + QExplicitlySharedDataPointer<QPixmapData> data; + + bool doImageIO(QImageWriter *io, int quality) const; + + // ### Qt5: remove the following three lines + enum Type { PixmapType, BitmapType }; // must match QPixmapData::PixelType + QPixmap(const QSize &s, Type); + void init(int, int, Type = PixmapType); + + QPixmap(const QSize &s, int type); + void init(int, int, int); + void deref(); +#if defined(Q_WS_WIN) + void initAlphaPixmap(uchar *bytes, int length, struct tagBITMAPINFO *bmi); +#endif + Q_DUMMY_COMPARISON_OPERATOR(QPixmap) +#ifdef Q_WS_MAC + friend CGContextRef qt_mac_cg_context(const QPaintDevice*); + friend CGImageRef qt_mac_create_imagemask(const QPixmap&, const QRectF&); + friend IconRef qt_mac_create_iconref(const QPixmap&); + friend quint32 *qt_mac_pixmap_get_base(const QPixmap*); + friend int qt_mac_pixmap_get_bytes_per_line(const QPixmap*); +#endif + friend class QPixmapData; + friend class QX11PixmapData; + friend class QMacPixmapData; + friend class QS60PixmapData; + friend class QBitmap; + friend class QPaintDevice; + friend class QPainter; + friend class QGLWidget; + friend class QX11PaintEngine; + friend class QCoreGraphicsPaintEngine; + friend class QWidgetPrivate; + friend class QRasterBuffer; +#if !defined(QT_NO_DATASTREAM) + friend Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QPixmap &); +#endif + friend Q_GUI_EXPORT qint64 qt_pixmap_id(const QPixmap &pixmap); + +public: + QPixmapData* pixmapData() const; + +public: + typedef QExplicitlySharedDataPointer<QPixmapData> DataPtr; + inline DataPtr &data_ptr() { return data; } +}; + +Q_DECLARE_SHARED(QPixmap) + +inline QPixmap QPixmap::copy(int ax, int ay, int awidth, int aheight) const +{ + return copy(QRect(ax, ay, awidth, aheight)); +} + +inline void QPixmap::scroll(int dx, int dy, int ax, int ay, int awidth, int aheight, QRegion *exposed) +{ + scroll(dx, dy, QRect(ax, ay, awidth, aheight), exposed); +} + +inline bool QPixmap::loadFromData(const QByteArray &buf, const char *format, + Qt::ImageConversionFlags flags) +{ + return loadFromData(reinterpret_cast<const uchar *>(buf.constData()), buf.size(), format, flags); +} + +/***************************************************************************** + QPixmap stream functions +*****************************************************************************/ + +#if !defined(QT_NO_DATASTREAM) +Q_GUI_EXPORT QDataStream &operator<<(QDataStream &, const QPixmap &); +Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QPixmap &); +#endif + +/***************************************************************************** + QPixmap (and QImage) helper functions +*****************************************************************************/ +#ifdef QT3_SUPPORT +QT3_SUPPORT Q_GUI_EXPORT void copyBlt(QPixmap *dst, int dx, int dy, const QPixmap *src, + int sx=0, int sy=0, int sw=-1, int sh=-1); +#endif // QT3_SUPPORT + +QT_END_NAMESPACE + +QT_END_HEADER + +#endif // QPIXMAP_H |