| /**************************************************************************** |
| ** |
| ** 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. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** GNU Lesser General Public License Usage |
| ** 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. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU General |
| ** Public License version 3.0 as published by the Free Software Foundation |
| ** and appearing in the file LICENSE.GPL included in the packaging of this |
| ** file. Please review the following information to ensure the GNU General |
| ** Public License version 3.0 requirements will be met: |
| ** http://www.gnu.org/copyleft/gpl.html. |
| ** |
| ** Other Usage |
| ** Alternatively, this file may be used in accordance with the terms and |
| ** conditions contained in a signed written agreement between you and Nokia. |
| ** |
| ** |
| ** |
| ** |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #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 ®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 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 |