/**************************************************************************** ** ** 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 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 #include #include #include #include QT_BEGIN_HEADER QT_BEGIN_NAMESPACE QT_MODULE(Gui) class QPainterState; class QPaintEngineExPrivate; 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 ®ion, 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 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 updateState(const QPaintEngineState &state); virtual void setState(QPainterState *s); inline QPainterState *state() { return static_cast(QPaintEngine::state); } inline const QPainterState *state() const { return static_cast(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 NonCurvedShapeHint | OddEvenFill | ImplicitClose; case QPaintEngine::WindingMode: return NonCurvedShapeHint | WindingFill | ImplicitClose; case QPaintEngine::PolylineMode: return NonCurvedShapeHint; default: return 0; } } QT_END_NAMESPACE QT_END_HEADER #endif