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/****************************************************************************
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**
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** Copyright (C) 2011 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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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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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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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QPIXMAP_MAC_P_H
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#define QPIXMAP_MAC_P_H
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//
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//  W A R N I N G
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//  -------------
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//
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// This file is not part of the Qt API.  It exists purely as an
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// implementation detail.  This header file may change from version to
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// version without notice, or even be removed.
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//
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// We mean it.
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//
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#include <QtGui/private/qpixmapdata_p.h>
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#include <QtGui/private/qpixmapdatafactory_p.h>
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#include <QtGui/private/qt_mac_p.h>
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QT_BEGIN_NAMESPACE
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class QMacPixmapData : public QPixmapData
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{
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public:
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    QMacPixmapData(PixelType type);
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    ~QMacPixmapData();
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    QPixmapData *createCompatiblePixmapData() const;
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    void resize(int width, int height);
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    void fromImage(const QImage &image, Qt::ImageConversionFlags flags);
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    void copy(const QPixmapData *data, const QRect &rect);
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    bool scroll(int dx, int dy, const QRect &rect);
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    int metric(QPaintDevice::PaintDeviceMetric metric) const;
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    void fill(const QColor &color);
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    QBitmap mask() const;
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    void setMask(const QBitmap &mask);
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    bool hasAlphaChannel() const;
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//     QPixmap transformed(const QTransform &matrix,
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//                         Qt::TransformationMode mode) const;
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    void setAlphaChannel(const QPixmap &alphaChannel);
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    QPixmap alphaChannel() const;
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    QImage toImage() const;
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    QPaintEngine* paintEngine() const;
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private:
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    uint has_alpha : 1, has_mask : 1, uninit : 1;
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    void macSetHasAlpha(bool b);
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    void macGetAlphaChannel(QMacPixmapData *, bool asMask) const;
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    void macSetAlphaChannel(const QMacPixmapData *, bool asMask);
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    void macCreateCGImageRef();
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    void macCreatePixels();
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    void macReleaseCGImageRef();
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    /*
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        pixels stores the pixmap data. pixelsToFree is either 0 or some memory
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        block that was bound to a CGImageRef and released, and for which the
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        release callback has been called. There are two uses to pixelsToFree:
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        1. If pixels == pixelsToFree, then we know that the CGImageRef is done\
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           with the data and we can modify pixels without breaking CGImageRef's
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           mutability invariant.
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        2. If pixels != pixelsToFree and pixelsToFree != 0, then we can reuse
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           pixelsToFree later on instead of malloc'ing memory.
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    */
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    quint32 *pixels;
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    uint pixelsSize;
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    quint32 *pixelsToFree;
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    uint bytesPerRow;
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    QRectF cg_mask_rect;
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    CGImageRef cg_data, cg_dataBeingReleased, cg_mask;
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    static QSet<QMacPixmapData*> validDataPointers;
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    QPaintEngine *pengine;
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    friend class QPixmap;
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    friend class QRasterBuffer;
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    friend class QRasterPaintEngine;
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    friend class QCoreGraphicsPaintEngine;
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    friend CGImageRef qt_mac_create_imagemask(const QPixmap&, const QRectF&);
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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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    friend void qt_mac_cgimage_data_free(void *, const void*, size_t);
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    friend IconRef qt_mac_create_iconref(const QPixmap&);
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    friend CGContextRef qt_mac_cg_context(const QPaintDevice*);
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    friend QColor qcolorForThemeTextColor(ThemeTextColor themeColor);
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};
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QT_END_NAMESPACE
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#endif // QPIXMAP_MAC_P_H