src/gui/image/qpixmap_mac_p.h
changeset 0 1918ee327afb
child 3 41300fa6a67c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/gui/image/qpixmap_mac_p.h	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,133 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 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_MAC_P_H
+#define QPIXMAP_MAC_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtGui/private/qpixmapdata_p.h>
+#include <QtGui/private/qpixmapdatafactory_p.h>
+#include <QtGui/private/qt_mac_p.h>
+
+QT_BEGIN_NAMESPACE
+
+class QMacPixmapData : public QPixmapData
+{
+public:
+    QMacPixmapData(PixelType type);
+    ~QMacPixmapData();
+
+    QPixmapData *createCompatiblePixmapData() const;
+
+    void resize(int width, int height);
+    void fromImage(const QImage &image, Qt::ImageConversionFlags flags);
+    void copy(const QPixmapData *data, const QRect &rect);
+    bool scroll(int dx, int dy, const QRect &rect);
+
+    int metric(QPaintDevice::PaintDeviceMetric metric) const;
+    void fill(const QColor &color);
+    QBitmap mask() const;
+    void setMask(const QBitmap &mask);
+    bool hasAlphaChannel() const;
+//     QPixmap transformed(const QTransform &matrix,
+//                         Qt::TransformationMode mode) const;
+    void setAlphaChannel(const QPixmap &alphaChannel);
+    QPixmap alphaChannel() const;
+    QImage toImage() const;
+    QPaintEngine* paintEngine() const;
+
+private:
+
+    uint has_alpha : 1, has_mask : 1, uninit : 1;
+
+    void macSetHasAlpha(bool b);
+    void macGetAlphaChannel(QMacPixmapData *, bool asMask) const;
+    void macSetAlphaChannel(const QMacPixmapData *, bool asMask);
+    void macCreateCGImageRef();
+    void macCreatePixels();
+    void macReleaseCGImageRef();
+    /*
+        pixels stores the pixmap data. pixelsToFree is either 0 or some memory
+        block that was bound to a CGImageRef and released, and for which the
+        release callback has been called. There are two uses to pixelsToFree:
+
+        1. If pixels == pixelsToFree, then we know that the CGImageRef is done\
+           with the data and we can modify pixels without breaking CGImageRef's
+           mutability invariant.
+
+        2. If pixels != pixelsToFree and pixelsToFree != 0, then we can reuse
+           pixelsToFree later on instead of malloc'ing memory.
+    */
+    quint32 *pixels;
+    quint32 *pixelsToFree;
+    uint bytesPerRow;
+    QRectF cg_mask_rect;
+    CGImageRef cg_data, cg_dataBeingReleased, cg_mask;
+    static QSet<QMacPixmapData*> validDataPointers;
+
+    QPaintEngine *pengine;
+
+    friend class QPixmap;
+    friend class QRasterBuffer;
+    friend class QRasterPaintEngine;
+    friend class QCoreGraphicsPaintEngine;
+    friend CGImageRef qt_mac_create_imagemask(const QPixmap&, const QRectF&);
+    friend quint32 *qt_mac_pixmap_get_base(const QPixmap*);
+    friend int qt_mac_pixmap_get_bytes_per_line(const QPixmap*);
+    friend void qt_mac_cgimage_data_free(void *, const void*, size_t);
+    friend IconRef qt_mac_create_iconref(const QPixmap&);
+    friend CGContextRef qt_mac_cg_context(const QPaintDevice*);
+    friend QColor qcolorForThemeTextColor(ThemeTextColor themeColor);
+};
+
+QT_END_NAMESPACE
+
+#endif // QPIXMAP_MAC_P_H