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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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<title>Qt 4.8: context2d.h Example File (script/context2d/context2d.h)</title>
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<div class="content mainContent">
<h1 class="title">context2d.h Example File</h1>
<span class="small-subtitle">script/context2d/context2d.h</span>
<!-- $$$script/context2d/context2d.h-description -->
<div class="descr"> <a name="details"></a>
<pre class="cpp"> <span class="comment">/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
** the names of its contributors may be used to endorse or promote
** products derived from this software without specific prior written
** permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
** $QT_END_LICENSE$
**
****************************************************************************/</span>
<span class="preprocessor">#ifndef CONTEXT2D_H</span>
<span class="preprocessor">#define CONTEXT2D_H</span>
<span class="preprocessor">#include "domimage.h"</span>
<span class="preprocessor">#include <QPainter></span>
<span class="preprocessor">#include <QPainterPath></span>
<span class="preprocessor">#include <QString></span>
<span class="preprocessor">#include <QStack></span>
<span class="preprocessor">#include <QMetaType></span>
<span class="preprocessor">#include <QTimerEvent></span>
<span class="comment">// [3]</span>
<span class="keyword">class</span> CanvasGradient
{
<span class="keyword">public</span>:
CanvasGradient(<span class="keyword">const</span> <span class="type"><a href="qgradient.html">QGradient</a></span> <span class="operator">&</span>v)
: value(v) {}
CanvasGradient() {}
<span class="type"><a href="qgradient.html">QGradient</a></span> value;
};
<span class="comment">// [3]</span>
<a href="qmetatype.html#Q_DECLARE_METATYPE">Q_DECLARE_METATYPE</a>(CanvasGradient)
<a href="qmetatype.html#Q_DECLARE_METATYPE">Q_DECLARE_METATYPE</a>(CanvasGradient<span class="operator">*</span>)
<span class="keyword">class</span> ImageData {
};
<span class="keyword">class</span> QContext2DCanvas;
<span class="keyword">class</span> Context2D : <span class="keyword">public</span> <span class="type"><a href="qobject.html">QObject</a></span>
{
Q_OBJECT
<span class="comment">// compositing</span>
Q_PROPERTY(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> globalAlpha READ globalAlpha WRITE setGlobalAlpha)
Q_PROPERTY(<span class="type"><a href="qstring.html">QString</a></span> globalCompositeOperation READ globalCompositeOperation WRITE setGlobalCompositeOperation)
Q_PROPERTY(<span class="type"><a href="qvariant.html">QVariant</a></span> strokeStyle READ strokeStyle WRITE setStrokeStyle)
Q_PROPERTY(<span class="type"><a href="qvariant.html">QVariant</a></span> fillStyle READ fillStyle WRITE setFillStyle)
<span class="comment">// line caps/joins</span>
Q_PROPERTY(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> lineWidth READ lineWidth WRITE setLineWidth)
Q_PROPERTY(<span class="type"><a href="qstring.html">QString</a></span> lineCap READ lineCap WRITE setLineCap)
Q_PROPERTY(<span class="type"><a href="qstring.html">QString</a></span> lineJoin READ lineJoin WRITE setLineJoin)
Q_PROPERTY(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> miterLimit READ miterLimit WRITE setMiterLimit)
<span class="comment">// shadows</span>
Q_PROPERTY(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> shadowOffsetX READ shadowOffsetX WRITE setShadowOffsetX)
Q_PROPERTY(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> shadowOffsetY READ shadowOffsetY WRITE setShadowOffsetY)
Q_PROPERTY(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> shadowBlur READ shadowBlur WRITE setShadowBlur)
Q_PROPERTY(<span class="type"><a href="qstring.html">QString</a></span> shadowColor READ shadowColor WRITE setShadowColor)
<span class="keyword">public</span>:
Context2D(<span class="type"><a href="qobject.html">QObject</a></span> <span class="operator">*</span>parent <span class="operator">=</span> <span class="number">0</span>);
<span class="type">void</span> setSize(<span class="type">int</span> width<span class="operator">,</span> <span class="type">int</span> height);
<span class="type">void</span> setSize(<span class="keyword">const</span> <span class="type"><a href="qsize.html">QSize</a></span> <span class="operator">&</span>size);
<span class="type"><a href="qsize.html">QSize</a></span> size() <span class="keyword">const</span>;
<span class="type">void</span> clear();
<span class="type">void</span> reset();
<span class="comment">// compositing</span>
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> globalAlpha() <span class="keyword">const</span>; <span class="comment">// (default 1.0)</span>
<span class="type"><a href="qstring.html">QString</a></span> globalCompositeOperation() <span class="keyword">const</span>; <span class="comment">// (default over)</span>
<span class="type"><a href="qvariant.html">QVariant</a></span> strokeStyle() <span class="keyword">const</span>; <span class="comment">// (default black)</span>
<span class="type"><a href="qvariant.html">QVariant</a></span> fillStyle() <span class="keyword">const</span>; <span class="comment">// (default black)</span>
<span class="type">void</span> setGlobalAlpha(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> alpha);
<span class="type">void</span> setGlobalCompositeOperation(<span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">&</span>op);
<span class="type">void</span> setStrokeStyle(<span class="keyword">const</span> <span class="type"><a href="qvariant.html">QVariant</a></span> <span class="operator">&</span>style);
<span class="type">void</span> setFillStyle(<span class="keyword">const</span> <span class="type"><a href="qvariant.html">QVariant</a></span> <span class="operator">&</span>style);
<span class="comment">// line caps/joins</span>
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> lineWidth() <span class="keyword">const</span>; <span class="comment">// (default 1)</span>
<span class="type"><a href="qstring.html">QString</a></span> lineCap() <span class="keyword">const</span>; <span class="comment">// "butt", "round", "square" (default "butt")</span>
<span class="type"><a href="qstring.html">QString</a></span> lineJoin() <span class="keyword">const</span>; <span class="comment">// "round", "bevel", "miter" (default "miter")</span>
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> miterLimit() <span class="keyword">const</span>; <span class="comment">// (default 10)</span>
<span class="type">void</span> setLineWidth(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> w);
<span class="type">void</span> setLineCap(<span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">&</span>s);
<span class="type">void</span> setLineJoin(<span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">&</span>s);
<span class="type">void</span> setMiterLimit(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> m);
<span class="comment">// shadows</span>
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> shadowOffsetX() <span class="keyword">const</span>; <span class="comment">// (default 0)</span>
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> shadowOffsetY() <span class="keyword">const</span>; <span class="comment">// (default 0)</span>
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> shadowBlur() <span class="keyword">const</span>; <span class="comment">// (default 0)</span>
<span class="type"><a href="qstring.html">QString</a></span> shadowColor() <span class="keyword">const</span>; <span class="comment">// (default black)</span>
<span class="type">void</span> setShadowOffsetX(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x);
<span class="type">void</span> setShadowOffsetY(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y);
<span class="type">void</span> setShadowBlur(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> b);
<span class="type">void</span> setShadowColor(<span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">&</span>str);
<span class="keyword">public</span> <span class="keyword">slots</span>:
<span class="type">void</span> save(); <span class="comment">// push state on state stack</span>
<span class="type">void</span> restore(); <span class="comment">// pop state stack and restore state</span>
<span class="type">void</span> scale(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y);
<span class="type">void</span> rotate(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> angle);
<span class="type">void</span> translate(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y);
<span class="type">void</span> transform(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> m11<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> m12<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> m21<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> m22<span class="operator">,</span>
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> dx<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> dy);
<span class="type">void</span> setTransform(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> m11<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> m12<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> m21<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> m22<span class="operator">,</span>
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> dx<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> dy);
CanvasGradient createLinearGradient(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x0<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y0<span class="operator">,</span>
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x1<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y1);
CanvasGradient createRadialGradient(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x0<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y0<span class="operator">,</span>
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> r0<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x1<span class="operator">,</span>
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y1<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> r1);
<span class="comment">// rects</span>
<span class="type">void</span> clearRect(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> w<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> h);
<span class="type">void</span> fillRect(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> w<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> h);
<span class="type">void</span> strokeRect(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> w<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> h);
<span class="comment">// path API</span>
<span class="type">void</span> beginPath();
<span class="type">void</span> closePath();
<span class="type">void</span> moveTo(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y);
<span class="type">void</span> lineTo(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y);
<span class="type">void</span> quadraticCurveTo(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> cpx<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> cpy<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y);
<span class="type">void</span> bezierCurveTo(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> cp1x<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> cp1y<span class="operator">,</span>
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> cp2x<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> cp2y<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y);
<span class="type">void</span> arcTo(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x1<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y1<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x2<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y2<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> radius);
<span class="type">void</span> rect(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> w<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> h);
<span class="type">void</span> arc(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> radius<span class="operator">,</span>
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> startAngle<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> endAngle<span class="operator">,</span>
<span class="type">bool</span> anticlockwise);
<span class="type">void</span> fill();
<span class="type">void</span> stroke();
<span class="type">void</span> clip();
<span class="type">bool</span> isPointInPath(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y) <span class="keyword">const</span>;
<span class="comment">// drawing images</span>
<span class="type">void</span> drawImage(DomImage <span class="operator">*</span>image<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> dx<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> dy);
<span class="type">void</span> drawImage(DomImage <span class="operator">*</span>image<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> dx<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> dy<span class="operator">,</span>
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> dw<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> dh);
<span class="type">void</span> drawImage(DomImage <span class="operator">*</span>image<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> sx<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> sy<span class="operator">,</span>
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> sw<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> sh<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> dx<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> dy<span class="operator">,</span>
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> dw<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> dh);
<span class="comment">// pixel manipulation</span>
ImageData getImageData(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> sx<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> sy<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> sw<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> sh);
<span class="type">void</span> putImageData(ImageData image<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> dx<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> dy);
<span class="keyword">signals</span>:
<span class="type">void</span> changed(<span class="keyword">const</span> <span class="type"><a href="qimage.html">QImage</a></span> <span class="operator">&</span>image);
<span class="keyword">protected</span>:
<span class="type">void</span> timerEvent(<span class="type"><a href="qtimerevent.html">QTimerEvent</a></span> <span class="operator">*</span>e);
<span class="keyword">private</span>:
<span class="type">void</span> beginPainting();
<span class="keyword">const</span> <span class="type"><a href="qimage.html">QImage</a></span> <span class="operator">&</span>endPainting();
<span class="type">void</span> scheduleChange();
<span class="type">int</span> m_changeTimerId;
<span class="type"><a href="qimage.html">QImage</a></span> m_image;
<span class="type"><a href="qpainter.html">QPainter</a></span> m_painter;
<span class="type"><a href="qpainterpath.html">QPainterPath</a></span> m_path;
<span class="keyword">enum</span> DirtyFlag {
DirtyTransformationMatrix <span class="operator">=</span> <span class="number">0x00001</span><span class="operator">,</span>
DirtyClippingRegion <span class="operator">=</span> <span class="number">0x00002</span><span class="operator">,</span>
DirtyStrokeStyle <span class="operator">=</span> <span class="number">0x00004</span><span class="operator">,</span>
DirtyFillStyle <span class="operator">=</span> <span class="number">0x00008</span><span class="operator">,</span>
DirtyGlobalAlpha <span class="operator">=</span> <span class="number">0x00010</span><span class="operator">,</span>
DirtyLineWidth <span class="operator">=</span> <span class="number">0x00020</span><span class="operator">,</span>
DirtyLineCap <span class="operator">=</span> <span class="number">0x00040</span><span class="operator">,</span>
DirtyLineJoin <span class="operator">=</span> <span class="number">0x00080</span><span class="operator">,</span>
DirtyMiterLimit <span class="operator">=</span> <span class="number">0x00100</span><span class="operator">,</span>
MDirtyPen <span class="operator">=</span> DirtyStrokeStyle
<span class="operator">|</span> DirtyLineWidth
<span class="operator">|</span> DirtyLineCap
<span class="operator">|</span> DirtyLineJoin
<span class="operator">|</span> DirtyMiterLimit<span class="operator">,</span>
DirtyShadowOffsetX <span class="operator">=</span> <span class="number">0x00200</span><span class="operator">,</span>
DirtyShadowOffsetY <span class="operator">=</span> <span class="number">0x00400</span><span class="operator">,</span>
DirtyShadowBlur <span class="operator">=</span> <span class="number">0x00800</span><span class="operator">,</span>
DirtyShadowColor <span class="operator">=</span> <span class="number">0x01000</span><span class="operator">,</span>
DirtyGlobalCompositeOperation <span class="operator">=</span> <span class="number">0x2000</span><span class="operator">,</span>
DirtyFont <span class="operator">=</span> <span class="number">0x04000</span><span class="operator">,</span>
DirtyTextAlign <span class="operator">=</span> <span class="number">0x08000</span><span class="operator">,</span>
DirtyTextBaseline <span class="operator">=</span> <span class="number">0x10000</span><span class="operator">,</span>
AllIsFullOfDirt <span class="operator">=</span> <span class="number">0xfffff</span>
};
<span class="keyword">struct</span> State {
State() : flags(<span class="number">0</span>) {}
<span class="type"><a href="qmatrix.html">QMatrix</a></span> matrix;
<span class="type"><a href="qpainterpath.html">QPainterPath</a></span> clipPath;
<span class="type"><a href="qbrush.html">QBrush</a></span> strokeStyle;
<span class="type"><a href="qbrush.html">QBrush</a></span> fillStyle;
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> globalAlpha;
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> lineWidth;
<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>PenCapStyle lineCap;
<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>PenJoinStyle lineJoin;
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> miterLimit;
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> shadowOffsetX;
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> shadowOffsetY;
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> shadowBlur;
<span class="type"><a href="qcolor.html">QColor</a></span> shadowColor;
<span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode globalCompositeOperation;
<span class="type"><a href="qfont.html">QFont</a></span> font;
<span class="type">int</span> textAlign;
<span class="type">int</span> textBaseline;
<span class="type">int</span> flags;
};
State m_state;
<span class="type"><a href="qstack.html">QStack</a></span><span class="operator"><</span>State<span class="operator">></span> m_stateStack;
};
<span class="preprocessor">#endif</span></pre>
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<!-- @@@script/context2d/context2d.h -->
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The documentation provided herein is licensed under the terms of the
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