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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

1 files changed, 268 insertions, 0 deletions

diff --git a/src/gui/painting/qpaintengineex_p.h b/src/gui/painting/qpaintengineex_p.h
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+++ b/src/gui/painting/qpaintengineex_p.h
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+/****************************************************************************
+**
+** 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 QPAINTENGINEEX_P_H
+#define QPAINTENGINEEX_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/qpaintengine.h>
+#include <QtGui/qdrawutil.h>
+
+#include <private/qpaintengine_p.h>
+#include <private/qstroker_p.h>
+#include <private/qpainter_p.h>
+#include <private/qvectorpath_p.h>
+
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Gui)
+
+class QPainterState;
+class QPaintEngineExPrivate;
+class QStaticTextItem;
+struct StrokeHandler;
+
+struct QIntRect {
+    int x1, y1, x2, y2;
+    inline void set(const QRect &r) {
+        x1 = r.x();
+        y1 = r.y();
+        x2 = r.right() + 1;
+        y2 = r.bottom() + 1;
+        // We will assume normalized for later...
+        Q_ASSERT(x2 >= x1);
+        Q_ASSERT(y2 >= y1);
+    }
+};
+
+class QRectVectorPath : public QVectorPath {
+public:
+    inline void set(const QRect &r) {
+        qreal left = r.x();
+        qreal right = r.x() + r.width();
+        qreal top = r.y();
+        qreal bottom = r.y() + r.height();
+        pts[0] = left;
+        pts[1] = top;
+        pts[2] = right;
+        pts[3] = top;
+        pts[4] = right;
+        pts[5] = bottom;
+        pts[6] = left;
+        pts[7] = bottom;
+    }
+
+    inline void set(const QRectF &r) {
+        qreal left = r.x();
+        qreal right = r.x() + r.width();
+        qreal top = r.y();
+        qreal bottom = r.y() + r.height();
+        pts[0] = left;
+        pts[1] = top;
+        pts[2] = right;
+        pts[3] = top;
+        pts[4] = right;
+        pts[5] = bottom;
+        pts[6] = left;
+        pts[7] = bottom;
+    }
+    inline QRectVectorPath(const QRect &r)
+        : QVectorPath(pts, 4, 0, QVectorPath::RectangleHint | QVectorPath::ImplicitClose)
+    {
+        set(r);
+    }
+    inline QRectVectorPath(const QRectF &r)
+        : QVectorPath(pts, 4, 0, QVectorPath::RectangleHint | QVectorPath::ImplicitClose)
+    {
+        set(r);
+    }
+    inline QRectVectorPath()
+        : QVectorPath(pts, 4, 0, QVectorPath::RectangleHint | QVectorPath::ImplicitClose)
+    { }
+
+    qreal pts[8];
+};
+
+#ifndef QT_NO_DEBUG_STREAM
+QDebug Q_GUI_EXPORT &operator<<(QDebug &, const QVectorPath &path);
+#endif
+
+class QPixmapFilter;
+
+class Q_GUI_EXPORT QPaintEngineEx : public QPaintEngine
+{
+    Q_DECLARE_PRIVATE(QPaintEngineEx)
+public:
+    QPaintEngineEx();
+
+    virtual QPainterState *createState(QPainterState *orig) const;
+
+    virtual void draw(const QVectorPath &path);
+    virtual void fill(const QVectorPath &path, const QBrush &brush) = 0;
+    virtual void stroke(const QVectorPath &path, const QPen &pen);
+
+    virtual void clip(const QVectorPath &path, Qt::ClipOperation op) = 0;
+    virtual void clip(const QRect &rect, Qt::ClipOperation op);
+    virtual void clip(const QRegion &region, Qt::ClipOperation op);
+    virtual void clip(const QPainterPath &path, Qt::ClipOperation op);
+
+    virtual void clipEnabledChanged() = 0;
+    virtual void penChanged() = 0;
+    virtual void brushChanged() = 0;
+    virtual void brushOriginChanged() = 0;
+    virtual void opacityChanged() = 0;
+    virtual void compositionModeChanged() = 0;
+    virtual void renderHintsChanged() = 0;
+    virtual void transformChanged() = 0;
+
+    virtual void fillRect(const QRectF &rect, const QBrush &brush);
+    virtual void fillRect(const QRectF &rect, const QColor &color);
+
+    virtual void drawRoundedRect(const QRectF &rect, qreal xrad, qreal yrad, Qt::SizeMode mode);
+
+    virtual void drawRects(const QRect *rects, int rectCount);
+    virtual void drawRects(const QRectF *rects, int rectCount);
+
+    virtual void drawLines(const QLine *lines, int lineCount);
+    virtual void drawLines(const QLineF *lines, int lineCount);
+
+    virtual void drawEllipse(const QRectF &r);
+    virtual void drawEllipse(const QRect &r);
+
+    virtual void drawPath(const QPainterPath &path);
+
+    virtual void drawPoints(const QPointF *points, int pointCount);
+    virtual void drawPoints(const QPoint *points, int pointCount);
+
+    virtual void drawPolygon(const QPointF *points, int pointCount, PolygonDrawMode mode);
+    virtual void drawPolygon(const QPoint *points, int pointCount, PolygonDrawMode mode);
+
+    virtual void drawPixmap(const QRectF &r, const QPixmap &pm, const QRectF &sr) = 0;
+    virtual void drawPixmap(const QPointF &pos, const QPixmap &pm);
+
+    virtual void drawImage(const QRectF &r, const QImage &pm, const QRectF &sr,
+                           Qt::ImageConversionFlags flags = Qt::AutoColor) = 0;
+    virtual void drawImage(const QPointF &pos, const QImage &image);
+
+    virtual void drawTiledPixmap(const QRectF &r, const QPixmap &pixmap, const QPointF &s);
+
+    virtual void drawPixmapFragments(const QPainter::PixmapFragment *fragments, int fragmentCount, const QPixmap &pixmap,
+                                     QFlags<QPainter::PixmapFragmentHint> hints);
+
+    virtual void updateState(const QPaintEngineState &state);
+
+    virtual void drawStaticTextItem(QStaticTextItem *) = 0;
+
+    virtual void setState(QPainterState *s);
+    inline QPainterState *state() { return static_cast<QPainterState *>(QPaintEngine::state); }
+    inline const QPainterState *state() const { return static_cast<const QPainterState *>(QPaintEngine::state); }
+
+    virtual void sync() {}
+
+    virtual void beginNativePainting() {}
+    virtual void endNativePainting() {}
+
+    // Return a pixmap filter of "type" that can render the parameters
+    // in "prototype".  The returned filter is owned by the engine and
+    // will be destroyed when the engine is destroyed.  The "prototype"
+    // allows the engine to pick different filters based on the parameters
+    // that will be requested, and not just the "type".
+    virtual QPixmapFilter *pixmapFilter(int /*type*/, const QPixmapFilter * /*prototype*/) { return 0; }
+
+    // These flags are needed in the implementation of paint buffers.
+    enum Flags
+    {
+        DoNotEmulate = 0x01,        // If set, QPainter will not wrap this engine in an emulation engine.
+        IsEmulationEngine = 0x02    // If set, this object is a QEmulationEngine.
+    };
+    virtual uint flags() const {return 0;}
+
+protected:
+    QPaintEngineEx(QPaintEngineExPrivate &data);
+};
+
+class Q_GUI_EXPORT QPaintEngineExPrivate : public QPaintEnginePrivate
+{
+    Q_DECLARE_PUBLIC(QPaintEngineEx)
+public:
+    QPaintEngineExPrivate();
+    ~QPaintEngineExPrivate();
+
+    void replayClipOperations();
+    bool hasClipOperations() const;
+
+    QStroker stroker;
+    QDashStroker dasher;
+    StrokeHandler *strokeHandler;
+    QStrokerOps *activeStroker;
+    QPen strokerPen;
+
+    QRect exDeviceRect;
+};
+
+inline uint QVectorPath::polygonFlags(QPaintEngine::PolygonDrawMode mode) {
+    switch (mode) {
+    case QPaintEngine::ConvexMode: return ConvexPolygonHint | ImplicitClose;
+    case QPaintEngine::OddEvenMode: return PolygonHint | OddEvenFill | ImplicitClose;
+    case QPaintEngine::WindingMode: return PolygonHint | WindingFill | ImplicitClose;
+    case QPaintEngine::PolylineMode: return PolygonHint;
+    default: return 0;
+    }
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif