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330 lines
12 KiB
330 lines
12 KiB
/****************************************************************************
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**
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the QtGui module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial Usage
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial License Agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Nokia.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QPIXMAP_H
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#define QPIXMAP_H
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#include <QtGui/qpaintdevice.h>
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#include <QtGui/qcolor.h>
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#include <QtCore/qnamespace.h>
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#include <QtCore/qstring.h> // char*->QString conversion
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#include <QtCore/qsharedpointer.h>
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#include <QtGui/qimage.h>
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#include <QtGui/qtransform.h>
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QT_BEGIN_HEADER
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#if defined(Q_OS_SYMBIAN)
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class CFbsBitmap;
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class RSgImage;
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#endif
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QT_BEGIN_NAMESPACE
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QT_MODULE(Gui)
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class QImageWriter;
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class QColor;
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class QVariant;
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class QX11Info;
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class QPixmapData;
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class Q_GUI_EXPORT QPixmap : public QPaintDevice
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{
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public:
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QPixmap();
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explicit QPixmap(QPixmapData *data);
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QPixmap(int w, int h);
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QPixmap(const QSize &);
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QPixmap(const QString& fileName, const char *format = 0, Qt::ImageConversionFlags flags = Qt::AutoColor);
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#ifndef QT_NO_IMAGEFORMAT_XPM
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QPixmap(const char * const xpm[]);
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#endif
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QPixmap(const QPixmap &);
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~QPixmap();
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QPixmap &operator=(const QPixmap &);
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operator QVariant() const;
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bool isNull() const; // ### Qt 5: make inline
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int devType() const;
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int width() const; // ### Qt 5: make inline
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int height() const; // ### Qt 5: make inline
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QSize size() const;
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QRect rect() const;
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int depth() const;
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static int defaultDepth();
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void fill(const QColor &fillColor = Qt::white);
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void fill(const QWidget *widget, const QPoint &ofs);
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inline void fill(const QWidget *widget, int xofs, int yofs) { fill(widget, QPoint(xofs, yofs)); }
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QBitmap mask() const;
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void setMask(const QBitmap &);
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QPixmap alphaChannel() const;
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void setAlphaChannel(const QPixmap &);
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bool hasAlpha() const;
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bool hasAlphaChannel() const;
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#ifndef QT_NO_IMAGE_HEURISTIC_MASK
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QBitmap createHeuristicMask(bool clipTight = true) const;
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#endif
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QBitmap createMaskFromColor(const QColor &maskColor) const; // ### Qt 5: remove
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QBitmap createMaskFromColor(const QColor &maskColor, Qt::MaskMode mode) const;
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static QPixmap grabWindow(WId, int x=0, int y=0, int w=-1, int h=-1);
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static QPixmap grabWidget(QWidget *widget, const QRect &rect);
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static inline QPixmap grabWidget(QWidget *widget, int x=0, int y=0, int w=-1, int h=-1)
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{ return grabWidget(widget, QRect(x, y, w, h)); }
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inline QPixmap scaled(int w, int h, Qt::AspectRatioMode aspectMode = Qt::IgnoreAspectRatio,
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Qt::TransformationMode mode = Qt::FastTransformation) const
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{ return scaled(QSize(w, h), aspectMode, mode); }
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QPixmap scaled(const QSize &s, Qt::AspectRatioMode aspectMode = Qt::IgnoreAspectRatio,
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Qt::TransformationMode mode = Qt::FastTransformation) const;
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QPixmap scaledToWidth(int w, Qt::TransformationMode mode = Qt::FastTransformation) const;
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QPixmap scaledToHeight(int h, Qt::TransformationMode mode = Qt::FastTransformation) const;
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QPixmap transformed(const QMatrix &, Qt::TransformationMode mode = Qt::FastTransformation) const;
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static QMatrix trueMatrix(const QMatrix &m, int w, int h);
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QPixmap transformed(const QTransform &, Qt::TransformationMode mode = Qt::FastTransformation) const;
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static QTransform trueMatrix(const QTransform &m, int w, int h);
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QImage toImage() const;
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static QPixmap fromImage(const QImage &image, Qt::ImageConversionFlags flags = Qt::AutoColor);
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bool load(const QString& fileName, const char *format = 0, Qt::ImageConversionFlags flags = Qt::AutoColor);
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bool loadFromData(const uchar *buf, uint len, const char* format = 0, Qt::ImageConversionFlags flags = Qt::AutoColor);
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inline bool loadFromData(const QByteArray &data, const char* format = 0, Qt::ImageConversionFlags flags = Qt::AutoColor);
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bool save(const QString& fileName, const char* format = 0, int quality = -1) const;
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bool save(QIODevice* device, const char* format = 0, int quality = -1) const;
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#if defined(Q_WS_WIN)
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enum HBitmapFormat {
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NoAlpha,
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PremultipliedAlpha,
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Alpha
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};
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HBITMAP toWinHBITMAP(HBitmapFormat format = NoAlpha) const;
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HICON toWinHICON() const;
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static QPixmap fromWinHBITMAP(HBITMAP hbitmap, HBitmapFormat format = NoAlpha);
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static QPixmap fromWinHICON(HICON hicon);
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#endif
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#if defined(Q_WS_MAC)
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CGImageRef toMacCGImageRef() const;
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static QPixmap fromMacCGImageRef(CGImageRef image);
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#endif
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#if defined(Q_OS_SYMBIAN)
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CFbsBitmap *toSymbianCFbsBitmap() const;
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static QPixmap fromSymbianCFbsBitmap(CFbsBitmap *bitmap);
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RSgImage* toSymbianRSgImage() const;
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static QPixmap fromSymbianRSgImage(RSgImage *sgImage);
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#endif
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inline QPixmap copy(int x, int y, int width, int height) const;
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QPixmap copy(const QRect &rect = QRect()) const;
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inline void scroll(int dx, int dy, int x, int y, int width, int height, QRegion *exposed = 0);
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void scroll(int dx, int dy, const QRect &rect, QRegion *exposed = 0);
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int serialNumber() const;
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qint64 cacheKey() const;
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bool isDetached() const;
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void detach();
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bool isQBitmap() const;
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#if defined(Q_WS_QWS)
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const uchar *qwsBits() const;
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int qwsBytesPerLine() const;
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QRgb *clut() const;
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#ifdef QT_DEPRECATED
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QT_DEPRECATED int numCols() const;
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#endif
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int colorCount() const;
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#elif defined(Q_WS_MAC)
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Qt::HANDLE macQDHandle() const;
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Qt::HANDLE macQDAlphaHandle() const;
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Qt::HANDLE macCGHandle() const;
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#elif defined(Q_WS_X11)
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enum ShareMode { ImplicitlyShared, ExplicitlyShared };
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static QPixmap fromX11Pixmap(Qt::HANDLE pixmap, ShareMode mode = ImplicitlyShared);
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static int x11SetDefaultScreen(int screen);
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void x11SetScreen(int screen);
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const QX11Info &x11Info() const;
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Qt::HANDLE x11PictureHandle() const;
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#endif
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#if defined(Q_WS_X11) || defined(Q_WS_QWS)
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Qt::HANDLE handle() const;
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#endif
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QPaintEngine *paintEngine() const;
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inline bool operator!() const { return isNull(); }
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protected:
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int metric(PaintDeviceMetric) const;
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#ifdef QT3_SUPPORT
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public:
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enum ColorMode { Auto, Color, Mono };
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QT3_SUPPORT_CONSTRUCTOR QPixmap(const QString& fileName, const char *format, ColorMode mode);
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QT3_SUPPORT bool load(const QString& fileName, const char *format, ColorMode mode);
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QT3_SUPPORT bool loadFromData(const uchar *buf, uint len, const char* format, ColorMode mode);
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QT3_SUPPORT_CONSTRUCTOR QPixmap(const QImage& image);
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QT3_SUPPORT QPixmap &operator=(const QImage &);
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inline QT3_SUPPORT QImage convertToImage() const { return toImage(); }
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QT3_SUPPORT bool convertFromImage(const QImage &, ColorMode mode);
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QT3_SUPPORT bool convertFromImage(const QImage &img, Qt::ImageConversionFlags flags = Qt::AutoColor)
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{ (*this) = fromImage(img, flags); return !isNull(); }
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inline QT3_SUPPORT operator QImage() const { return toImage(); }
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inline QT3_SUPPORT QPixmap xForm(const QMatrix &matrix) const { return transformed(QTransform(matrix)); }
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inline QT3_SUPPORT bool selfMask() const { return false; }
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private:
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void resize_helper(const QSize &s);
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public:
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inline QT3_SUPPORT void resize(const QSize &s) { resize_helper(s); }
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inline QT3_SUPPORT void resize(int width, int height) { resize_helper(QSize(width, height)); }
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#endif
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private:
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QExplicitlySharedDataPointer<QPixmapData> data;
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bool doImageIO(QImageWriter *io, int quality) const;
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// ### Qt5: remove the following three lines
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enum Type { PixmapType, BitmapType }; // must match QPixmapData::PixelType
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QPixmap(const QSize &s, Type);
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void init(int, int, Type = PixmapType);
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QPixmap(const QSize &s, int type);
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void init(int, int, int);
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void deref();
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#if defined(Q_WS_WIN)
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void initAlphaPixmap(uchar *bytes, int length, struct tagBITMAPINFO *bmi);
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#endif
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Q_DUMMY_COMPARISON_OPERATOR(QPixmap)
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#ifdef Q_WS_MAC
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friend CGContextRef qt_mac_cg_context(const QPaintDevice*);
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friend CGImageRef qt_mac_create_imagemask(const QPixmap&, const QRectF&);
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friend IconRef qt_mac_create_iconref(const QPixmap&);
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friend quint32 *qt_mac_pixmap_get_base(const QPixmap*);
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friend int qt_mac_pixmap_get_bytes_per_line(const QPixmap*);
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#endif
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friend class QPixmapData;
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friend class QX11PixmapData;
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friend class QMacPixmapData;
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friend class QS60PixmapData;
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friend class QBitmap;
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friend class QPaintDevice;
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friend class QPainter;
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friend class QGLWidget;
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friend class QX11PaintEngine;
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friend class QCoreGraphicsPaintEngine;
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friend class QWidgetPrivate;
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friend class QRasterPaintEngine;
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friend class QRasterBuffer;
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friend class QPixmapCacheEntry;
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#if !defined(QT_NO_DATASTREAM)
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friend Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QPixmap &);
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#endif
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friend Q_GUI_EXPORT qint64 qt_pixmap_id(const QPixmap &pixmap);
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public:
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QPixmapData* pixmapData() const;
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public:
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typedef QExplicitlySharedDataPointer<QPixmapData> DataPtr;
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inline DataPtr &data_ptr() { return data; }
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};
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Q_DECLARE_SHARED(QPixmap)
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inline QPixmap QPixmap::copy(int ax, int ay, int awidth, int aheight) const
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{
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return copy(QRect(ax, ay, awidth, aheight));
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}
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inline void QPixmap::scroll(int dx, int dy, int ax, int ay, int awidth, int aheight, QRegion *exposed)
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{
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scroll(dx, dy, QRect(ax, ay, awidth, aheight), exposed);
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}
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inline bool QPixmap::loadFromData(const QByteArray &buf, const char *format,
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Qt::ImageConversionFlags flags)
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{
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return loadFromData(reinterpret_cast<const uchar *>(buf.constData()), buf.size(), format, flags);
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}
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/*****************************************************************************
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QPixmap stream functions
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*****************************************************************************/
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#if !defined(QT_NO_DATASTREAM)
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Q_GUI_EXPORT QDataStream &operator<<(QDataStream &, const QPixmap &);
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Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QPixmap &);
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#endif
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/*****************************************************************************
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QPixmap (and QImage) helper functions
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*****************************************************************************/
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#ifdef QT3_SUPPORT
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QT3_SUPPORT Q_GUI_EXPORT void copyBlt(QPixmap *dst, int dx, int dy, const QPixmap *src,
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int sx=0, int sy=0, int sw=-1, int sh=-1);
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#endif // QT3_SUPPORT
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QT_END_NAMESPACE
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QT_END_HEADER
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#endif // QPIXMAP_H
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