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Diffstat (limited to 'src/gui/painting/qpaintengineex_p.h')
-rw-r--r-- | src/gui/painting/qpaintengineex_p.h | 268 |
1 files changed, 268 insertions, 0 deletions
diff --git a/src/gui/painting/qpaintengineex_p.h b/src/gui/painting/qpaintengineex_p.h new file mode 100644 index 0000000000..d12c602372 --- /dev/null +++ b/src/gui/painting/qpaintengineex_p.h @@ -0,0 +1,268 @@ +/**************************************************************************** +** +** 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 ®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 |