990 lines
86 KiB
HTML
990 lines
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HTML
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<h1 class="title">context2d.cpp Example File</h1>
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<span class="small-subtitle">script/context2d/context2d.cpp</span>
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<!-- $$$script/context2d/context2d.cpp-description -->
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<div class="descr"> <a name="details"></a>
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<pre class="cpp"> <span class="comment">/****************************************************************************
|
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * 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
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|
** distribution.
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|
** * Neither the name of The Qt Company Ltd nor the names of its
|
|
** contributors may be used to endorse or promote products derived
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** from this software without specific prior written permission.
|
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**
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/</span>
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<span class="preprocessor">#include "context2d.h"</span>
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<span class="preprocessor">#include <QVariant></span>
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<span class="preprocessor">#include <math.h></span>
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<span class="keyword">static</span> <span class="keyword">const</span> <span class="type">double</span> Q_PI <span class="operator">=</span> <span class="number">3.14159265358979323846</span>; <span class="comment">// pi</span>
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<span class="preprocessor">#define DEGREES(t) ((t) * 180.0 / Q_PI)</span>
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<span class="preprocessor">#define qClamp(val, min, max) qMin(qMax(val, min), max)</span>
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<span class="keyword">static</span> <span class="type"><a href="qlist.html">QList</a></span><span class="operator"><</span><span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span><span class="operator">></span> parseNumbersList(<span class="type"><a href="qstring.html">QString</a></span><span class="operator">::</span>const_iterator <span class="operator">&</span>itr)
|
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{
|
|
<span class="type"><a href="qlist.html">QList</a></span><span class="operator"><</span><span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span><span class="operator">></span> points;
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<span class="type"><a href="qstring.html">QString</a></span> temp;
|
|
<span class="keyword">while</span> ((<span class="operator">*</span>itr)<span class="operator">.</span>isSpace())
|
|
<span class="operator">+</span><span class="operator">+</span>itr;
|
|
<span class="keyword">while</span> ((<span class="operator">*</span>itr)<span class="operator">.</span>isNumber() <span class="operator">|</span><span class="operator">|</span>
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|
(<span class="operator">*</span>itr) <span class="operator">=</span><span class="operator">=</span> <span class="char">'-'</span> <span class="operator">|</span><span class="operator">|</span> (<span class="operator">*</span>itr) <span class="operator">=</span><span class="operator">=</span> <span class="char">'+'</span> <span class="operator">|</span><span class="operator">|</span> (<span class="operator">*</span>itr) <span class="operator">=</span><span class="operator">=</span> <span class="char">'.'</span>) {
|
|
temp <span class="operator">=</span> <span class="type"><a href="qstring.html">QString</a></span>();
|
|
|
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<span class="keyword">if</span> ((<span class="operator">*</span>itr) <span class="operator">=</span><span class="operator">=</span> <span class="char">'-'</span>)
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temp <span class="operator">+</span><span class="operator">=</span> <span class="operator">*</span>itr<span class="operator">+</span><span class="operator">+</span>;
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<span class="keyword">else</span> <span class="keyword">if</span> ((<span class="operator">*</span>itr) <span class="operator">=</span><span class="operator">=</span> <span class="char">'+'</span>)
|
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temp <span class="operator">+</span><span class="operator">=</span> <span class="operator">*</span>itr<span class="operator">+</span><span class="operator">+</span>;
|
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<span class="keyword">while</span> ((<span class="operator">*</span>itr)<span class="operator">.</span>isDigit())
|
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temp <span class="operator">+</span><span class="operator">=</span> <span class="operator">*</span>itr<span class="operator">+</span><span class="operator">+</span>;
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<span class="keyword">if</span> ((<span class="operator">*</span>itr) <span class="operator">=</span><span class="operator">=</span> <span class="char">'.'</span>)
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temp <span class="operator">+</span><span class="operator">=</span> <span class="operator">*</span>itr<span class="operator">+</span><span class="operator">+</span>;
|
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<span class="keyword">while</span> ((<span class="operator">*</span>itr)<span class="operator">.</span>isDigit())
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temp <span class="operator">+</span><span class="operator">=</span> <span class="operator">*</span>itr<span class="operator">+</span><span class="operator">+</span>;
|
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<span class="keyword">while</span> ((<span class="operator">*</span>itr)<span class="operator">.</span>isSpace())
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<span class="operator">+</span><span class="operator">+</span>itr;
|
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<span class="keyword">if</span> ((<span class="operator">*</span>itr) <span class="operator">=</span><span class="operator">=</span> <span class="char">','</span>)
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<span class="operator">+</span><span class="operator">+</span>itr;
|
|
points<span class="operator">.</span>append(temp<span class="operator">.</span>toDouble());
|
|
<span class="comment">//eat spaces</span>
|
|
<span class="keyword">while</span> ((<span class="operator">*</span>itr)<span class="operator">.</span>isSpace())
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<span class="operator">+</span><span class="operator">+</span>itr;
|
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}
|
|
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<span class="keyword">return</span> points;
|
|
}
|
|
|
|
<span class="type"><a href="qcolor.html">QColor</a></span> colorFromString(<span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">&</span>name)
|
|
{
|
|
<span class="type"><a href="qstring.html">QString</a></span><span class="operator">::</span>const_iterator itr <span class="operator">=</span> name<span class="operator">.</span>constBegin();
|
|
<span class="type"><a href="qlist.html">QList</a></span><span class="operator"><</span><span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span><span class="operator">></span> compo;
|
|
<span class="keyword">if</span> (name<span class="operator">.</span>startsWith(<span class="string">"rgba("</span>)) {
|
|
<span class="operator">+</span><span class="operator">+</span>itr; <span class="operator">+</span><span class="operator">+</span>itr; <span class="operator">+</span><span class="operator">+</span>itr; <span class="operator">+</span><span class="operator">+</span>itr; <span class="operator">+</span><span class="operator">+</span>itr;
|
|
compo <span class="operator">=</span> parseNumbersList(itr);
|
|
<span class="keyword">if</span> (compo<span class="operator">.</span>size() <span class="operator">!</span><span class="operator">=</span> <span class="number">4</span>) {
|
|
<span class="keyword">return</span> <span class="type"><a href="qcolor.html">QColor</a></span>();
|
|
}
|
|
<span class="comment">//alpha seems to be always between 0-1</span>
|
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compo<span class="operator">[</span><span class="number">3</span><span class="operator">]</span> <span class="operator">*</span><span class="operator">=</span> <span class="number">255</span>;
|
|
<span class="keyword">return</span> <span class="type"><a href="qcolor.html">QColor</a></span>((<span class="type">int</span>)compo<span class="operator">[</span><span class="number">0</span><span class="operator">]</span><span class="operator">,</span> (<span class="type">int</span>)compo<span class="operator">[</span><span class="number">1</span><span class="operator">]</span><span class="operator">,</span>
|
|
(<span class="type">int</span>)compo<span class="operator">[</span><span class="number">2</span><span class="operator">]</span><span class="operator">,</span> (<span class="type">int</span>)compo<span class="operator">[</span><span class="number">3</span><span class="operator">]</span>);
|
|
} <span class="keyword">else</span> <span class="keyword">if</span> (name<span class="operator">.</span>startsWith(<span class="string">"rgb("</span>)) {
|
|
<span class="operator">+</span><span class="operator">+</span>itr; <span class="operator">+</span><span class="operator">+</span>itr; <span class="operator">+</span><span class="operator">+</span>itr; <span class="operator">+</span><span class="operator">+</span>itr;
|
|
compo <span class="operator">=</span> parseNumbersList(itr);
|
|
<span class="keyword">if</span> (compo<span class="operator">.</span>size() <span class="operator">!</span><span class="operator">=</span> <span class="number">3</span>) {
|
|
<span class="keyword">return</span> <span class="type"><a href="qcolor.html">QColor</a></span>();
|
|
}
|
|
<span class="keyword">return</span> <span class="type"><a href="qcolor.html">QColor</a></span>((<span class="type">int</span>)qClamp(compo<span class="operator">[</span><span class="number">0</span><span class="operator">]</span><span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span>(<span class="number">0</span>)<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span>(<span class="number">255</span>))<span class="operator">,</span>
|
|
(<span class="type">int</span>)qClamp(compo<span class="operator">[</span><span class="number">1</span><span class="operator">]</span><span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span>(<span class="number">0</span>)<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span>(<span class="number">255</span>))<span class="operator">,</span>
|
|
(<span class="type">int</span>)qClamp(compo<span class="operator">[</span><span class="number">2</span><span class="operator">]</span><span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span>(<span class="number">0</span>)<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span>(<span class="number">255</span>)));
|
|
} <span class="keyword">else</span> {
|
|
<span class="comment">//QRgb color;</span>
|
|
<span class="comment">//CSSParser::parseColor(name, color);</span>
|
|
<span class="keyword">return</span> <span class="type"><a href="qcolor.html">QColor</a></span>(name);
|
|
}
|
|
}
|
|
|
|
<span class="keyword">static</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode compositeOperatorFromString(<span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">&</span>compositeOperator)
|
|
{
|
|
<span class="keyword">if</span> ( compositeOperator <span class="operator">=</span><span class="operator">=</span> <span class="string">"source-over"</span> ) {
|
|
<span class="keyword">return</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_SourceOver;
|
|
} <span class="keyword">else</span> <span class="keyword">if</span> ( compositeOperator <span class="operator">=</span><span class="operator">=</span> <span class="string">"source-out"</span> ) {
|
|
<span class="keyword">return</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_SourceOut;
|
|
} <span class="keyword">else</span> <span class="keyword">if</span> ( compositeOperator <span class="operator">=</span><span class="operator">=</span> <span class="string">"source-in"</span> ) {
|
|
<span class="keyword">return</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_SourceIn;
|
|
} <span class="keyword">else</span> <span class="keyword">if</span> ( compositeOperator <span class="operator">=</span><span class="operator">=</span> <span class="string">"source-atop"</span> ) {
|
|
<span class="keyword">return</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_SourceAtop;
|
|
} <span class="keyword">else</span> <span class="keyword">if</span> ( compositeOperator <span class="operator">=</span><span class="operator">=</span> <span class="string">"destination-atop"</span> ) {
|
|
<span class="keyword">return</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_DestinationAtop;
|
|
} <span class="keyword">else</span> <span class="keyword">if</span> ( compositeOperator <span class="operator">=</span><span class="operator">=</span> <span class="string">"destination-in"</span> ) {
|
|
<span class="keyword">return</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_DestinationIn;
|
|
} <span class="keyword">else</span> <span class="keyword">if</span> ( compositeOperator <span class="operator">=</span><span class="operator">=</span> <span class="string">"destination-out"</span> ) {
|
|
<span class="keyword">return</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_DestinationOut;
|
|
} <span class="keyword">else</span> <span class="keyword">if</span> ( compositeOperator <span class="operator">=</span><span class="operator">=</span> <span class="string">"destination-over"</span> ) {
|
|
<span class="keyword">return</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_DestinationOver;
|
|
} <span class="keyword">else</span> <span class="keyword">if</span> ( compositeOperator <span class="operator">=</span><span class="operator">=</span> <span class="string">"darker"</span> ) {
|
|
<span class="keyword">return</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_SourceOver;
|
|
} <span class="keyword">else</span> <span class="keyword">if</span> ( compositeOperator <span class="operator">=</span><span class="operator">=</span> <span class="string">"lighter"</span> ) {
|
|
<span class="keyword">return</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_SourceOver;
|
|
} <span class="keyword">else</span> <span class="keyword">if</span> ( compositeOperator <span class="operator">=</span><span class="operator">=</span> <span class="string">"copy"</span> ) {
|
|
<span class="keyword">return</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_Source;
|
|
} <span class="keyword">else</span> <span class="keyword">if</span> ( compositeOperator <span class="operator">=</span><span class="operator">=</span> <span class="string">"xor"</span> ) {
|
|
<span class="keyword">return</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_Xor;
|
|
}
|
|
|
|
<span class="keyword">return</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_SourceOver;
|
|
}
|
|
|
|
<span class="keyword">static</span> <span class="type"><a href="qstring.html">QString</a></span> compositeOperatorToString(<span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode op)
|
|
{
|
|
<span class="keyword">switch</span> (op) {
|
|
<span class="keyword">case</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_SourceOver:
|
|
<span class="keyword">return</span> <span class="string">"source-over"</span>;
|
|
<span class="keyword">case</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_DestinationOver:
|
|
<span class="keyword">return</span> <span class="string">"destination-over"</span>;
|
|
<span class="keyword">case</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_Clear:
|
|
<span class="keyword">return</span> <span class="string">"clear"</span>;
|
|
<span class="keyword">case</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_Source:
|
|
<span class="keyword">return</span> <span class="string">"source"</span>;
|
|
<span class="keyword">case</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_Destination:
|
|
<span class="keyword">return</span> <span class="string">"destination"</span>;
|
|
<span class="keyword">case</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_SourceIn:
|
|
<span class="keyword">return</span> <span class="string">"source-in"</span>;
|
|
<span class="keyword">case</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_DestinationIn:
|
|
<span class="keyword">return</span> <span class="string">"destination-in"</span>;
|
|
<span class="keyword">case</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_SourceOut:
|
|
<span class="keyword">return</span> <span class="string">"source-out"</span>;
|
|
<span class="keyword">case</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_DestinationOut:
|
|
<span class="keyword">return</span> <span class="string">"destination-out"</span>;
|
|
<span class="keyword">case</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_SourceAtop:
|
|
<span class="keyword">return</span> <span class="string">"source-atop"</span>;
|
|
<span class="keyword">case</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_DestinationAtop:
|
|
<span class="keyword">return</span> <span class="string">"destination-atop"</span>;
|
|
<span class="keyword">case</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_Xor:
|
|
<span class="keyword">return</span> <span class="string">"xor"</span>;
|
|
<span class="keyword">case</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_Plus:
|
|
<span class="keyword">return</span> <span class="string">"plus"</span>;
|
|
<span class="keyword">case</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_Multiply:
|
|
<span class="keyword">return</span> <span class="string">"multiply"</span>;
|
|
<span class="keyword">case</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_Screen:
|
|
<span class="keyword">return</span> <span class="string">"screen"</span>;
|
|
<span class="keyword">case</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_Overlay:
|
|
<span class="keyword">return</span> <span class="string">"overlay"</span>;
|
|
<span class="keyword">case</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_Darken:
|
|
<span class="keyword">return</span> <span class="string">"darken"</span>;
|
|
<span class="keyword">case</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_Lighten:
|
|
<span class="keyword">return</span> <span class="string">"lighten"</span>;
|
|
<span class="keyword">case</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_ColorDodge:
|
|
<span class="keyword">return</span> <span class="string">"color-dodge"</span>;
|
|
<span class="keyword">case</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_ColorBurn:
|
|
<span class="keyword">return</span> <span class="string">"color-burn"</span>;
|
|
<span class="keyword">case</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_HardLight:
|
|
<span class="keyword">return</span> <span class="string">"hard-light"</span>;
|
|
<span class="keyword">case</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_SoftLight:
|
|
<span class="keyword">return</span> <span class="string">"soft-light"</span>;
|
|
<span class="keyword">case</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_Difference:
|
|
<span class="keyword">return</span> <span class="string">"difference"</span>;
|
|
<span class="keyword">case</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_Exclusion:
|
|
<span class="keyword">return</span> <span class="string">"exclusion"</span>;
|
|
<span class="keyword">default</span>:
|
|
<span class="keyword">break</span>;
|
|
}
|
|
<span class="keyword">return</span> <span class="type"><a href="qstring.html">QString</a></span>();
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</span>save()
|
|
{
|
|
m_stateStack<span class="operator">.</span>push(m_state);
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</span>restore()
|
|
{
|
|
<span class="keyword">if</span> (<span class="operator">!</span>m_stateStack<span class="operator">.</span>isEmpty()) {
|
|
m_state <span class="operator">=</span> m_stateStack<span class="operator">.</span>pop();
|
|
m_state<span class="operator">.</span>flags <span class="operator">=</span> AllIsFullOfDirt;
|
|
}
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</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)
|
|
{
|
|
m_state<span class="operator">.</span>matrix<span class="operator">.</span>scale(x<span class="operator">,</span> y);
|
|
m_state<span class="operator">.</span>flags <span class="operator">|</span><span class="operator">=</span> DirtyTransformationMatrix;
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</span>rotate(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> angle)
|
|
{
|
|
m_state<span class="operator">.</span>matrix<span class="operator">.</span>rotate(DEGREES(angle));
|
|
m_state<span class="operator">.</span>flags <span class="operator">|</span><span class="operator">=</span> DirtyTransformationMatrix;
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</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)
|
|
{
|
|
m_state<span class="operator">.</span>matrix<span class="operator">.</span>translate(x<span class="operator">,</span> y);
|
|
m_state<span class="operator">.</span>flags <span class="operator">|</span><span class="operator">=</span> DirtyTransformationMatrix;
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</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"><a href="qmatrix.html">QMatrix</a></span> mat(m11<span class="operator">,</span> m12<span class="operator">,</span>
|
|
m21<span class="operator">,</span> m22<span class="operator">,</span>
|
|
dx<span class="operator">,</span> dy);
|
|
m_state<span class="operator">.</span>matrix <span class="operator">*</span><span class="operator">=</span> mat;
|
|
m_state<span class="operator">.</span>flags <span class="operator">|</span><span class="operator">=</span> DirtyTransformationMatrix;
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</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)
|
|
{
|
|
<span class="type"><a href="qmatrix.html">QMatrix</a></span> mat(m11<span class="operator">,</span> m12<span class="operator">,</span>
|
|
m21<span class="operator">,</span> m22<span class="operator">,</span>
|
|
dx<span class="operator">,</span> dy);
|
|
m_state<span class="operator">.</span>matrix <span class="operator">=</span> mat;
|
|
m_state<span class="operator">.</span>flags <span class="operator">|</span><span class="operator">=</span> DirtyTransformationMatrix;
|
|
}
|
|
|
|
<span class="type"><a href="qstring.html">QString</a></span> Context2D<span class="operator">::</span>globalCompositeOperation() <span class="keyword">const</span>
|
|
{
|
|
<span class="keyword">return</span> compositeOperatorToString(m_state<span class="operator">.</span>globalCompositeOperation);
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</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"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode mode <span class="operator">=</span>
|
|
compositeOperatorFromString(op);
|
|
m_state<span class="operator">.</span>globalCompositeOperation <span class="operator">=</span> mode;
|
|
m_state<span class="operator">.</span>flags <span class="operator">|</span><span class="operator">=</span> DirtyGlobalCompositeOperation;
|
|
}
|
|
|
|
<span class="type"><a href="qvariant.html">QVariant</a></span> Context2D<span class="operator">::</span>strokeStyle() <span class="keyword">const</span>
|
|
{
|
|
<span class="keyword">return</span> m_state<span class="operator">.</span>strokeStyle;
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</span>setStrokeStyle(<span class="keyword">const</span> <span class="type"><a href="qvariant.html">QVariant</a></span> <span class="operator">&</span>style)
|
|
{
|
|
<span class="keyword">if</span> (style<span class="operator">.</span>canConvert<span class="operator"><</span>CanvasGradient<span class="operator">></span>()) {
|
|
CanvasGradient cg <span class="operator">=</span> qvariant_cast<span class="operator"><</span>CanvasGradient<span class="operator">></span>(style);
|
|
m_state<span class="operator">.</span>strokeStyle <span class="operator">=</span> cg<span class="operator">.</span>value;
|
|
} <span class="keyword">else</span> {
|
|
<span class="type"><a href="qcolor.html">QColor</a></span> color <span class="operator">=</span> colorFromString(style<span class="operator">.</span>toString());
|
|
m_state<span class="operator">.</span>strokeStyle <span class="operator">=</span> color;
|
|
}
|
|
m_state<span class="operator">.</span>flags <span class="operator">|</span><span class="operator">=</span> DirtyStrokeStyle;
|
|
}
|
|
|
|
<span class="type"><a href="qvariant.html">QVariant</a></span> Context2D<span class="operator">::</span>fillStyle() <span class="keyword">const</span>
|
|
{
|
|
<span class="keyword">return</span> m_state<span class="operator">.</span>fillStyle;
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</span>setFillStyle(<span class="keyword">const</span> <span class="type"><a href="qvariant.html">QVariant</a></span> <span class="operator">&</span>style)
|
|
{
|
|
<span class="keyword">if</span> (style<span class="operator">.</span>canConvert<span class="operator"><</span>CanvasGradient<span class="operator">></span>()) {
|
|
CanvasGradient cg <span class="operator">=</span> qvariant_cast<span class="operator"><</span>CanvasGradient<span class="operator">></span>(style);
|
|
m_state<span class="operator">.</span>fillStyle <span class="operator">=</span> cg<span class="operator">.</span>value;
|
|
} <span class="keyword">else</span> {
|
|
<span class="type"><a href="qcolor.html">QColor</a></span> color <span class="operator">=</span> colorFromString(style<span class="operator">.</span>toString());
|
|
m_state<span class="operator">.</span>fillStyle <span class="operator">=</span> color;
|
|
}
|
|
m_state<span class="operator">.</span>flags <span class="operator">|</span><span class="operator">=</span> DirtyFillStyle;
|
|
}
|
|
|
|
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> Context2D<span class="operator">::</span>globalAlpha() <span class="keyword">const</span>
|
|
{
|
|
<span class="keyword">return</span> m_state<span class="operator">.</span>globalAlpha;
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</span>setGlobalAlpha(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> alpha)
|
|
{
|
|
m_state<span class="operator">.</span>globalAlpha <span class="operator">=</span> alpha;
|
|
m_state<span class="operator">.</span>flags <span class="operator">|</span><span class="operator">=</span> DirtyGlobalAlpha;
|
|
}
|
|
|
|
CanvasGradient Context2D<span class="operator">::</span>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)
|
|
{
|
|
<span class="type"><a href="qlineargradient.html">QLinearGradient</a></span> g(x0<span class="operator">,</span> y0<span class="operator">,</span> x1<span class="operator">,</span> y1);
|
|
<span class="keyword">return</span> CanvasGradient(g);
|
|
}
|
|
|
|
CanvasGradient Context2D<span class="operator">::</span>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="type"><a href="qradialgradient.html">QRadialGradient</a></span> g(<span class="type"><a href="qpointf.html">QPointF</a></span>(x1<span class="operator">,</span> y1)<span class="operator">,</span> r0<span class="operator">+</span>r1<span class="operator">,</span> <span class="type"><a href="qpointf.html">QPointF</a></span>(x0<span class="operator">,</span> y0));
|
|
<span class="keyword">return</span> CanvasGradient(g);
|
|
}
|
|
|
|
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> Context2D<span class="operator">::</span>lineWidth() <span class="keyword">const</span>
|
|
{
|
|
<span class="keyword">return</span> m_state<span class="operator">.</span>lineWidth;
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</span>setLineWidth(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> w)
|
|
{
|
|
m_state<span class="operator">.</span>lineWidth <span class="operator">=</span> w;
|
|
m_state<span class="operator">.</span>flags <span class="operator">|</span><span class="operator">=</span> DirtyLineWidth;
|
|
}
|
|
|
|
<span class="type"><a href="qstring.html">QString</a></span> Context2D<span class="operator">::</span>lineCap() <span class="keyword">const</span>
|
|
{
|
|
<span class="keyword">switch</span> (m_state<span class="operator">.</span>lineCap) {
|
|
<span class="keyword">case</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>FlatCap:
|
|
<span class="keyword">return</span> <span class="string">"butt"</span>;
|
|
<span class="keyword">case</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>SquareCap:
|
|
<span class="keyword">return</span> <span class="string">"square"</span>;
|
|
<span class="keyword">case</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>RoundCap:
|
|
<span class="keyword">return</span> <span class="string">"round"</span>;
|
|
<span class="keyword">default</span>: ;
|
|
}
|
|
<span class="keyword">return</span> <span class="type"><a href="qstring.html">QString</a></span>();
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</span>setLineCap(<span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">&</span>capString)
|
|
{
|
|
<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>PenCapStyle style;
|
|
<span class="keyword">if</span> (capString <span class="operator">=</span><span class="operator">=</span> <span class="string">"round"</span>)
|
|
style <span class="operator">=</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>RoundCap;
|
|
<span class="keyword">else</span> <span class="keyword">if</span> (capString <span class="operator">=</span><span class="operator">=</span> <span class="string">"square"</span>)
|
|
style <span class="operator">=</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>SquareCap;
|
|
<span class="keyword">else</span> <span class="comment">//if (capString == "butt")</span>
|
|
style <span class="operator">=</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>FlatCap;
|
|
m_state<span class="operator">.</span>lineCap <span class="operator">=</span> style;
|
|
m_state<span class="operator">.</span>flags <span class="operator">|</span><span class="operator">=</span> DirtyLineCap;
|
|
}
|
|
|
|
<span class="type"><a href="qstring.html">QString</a></span> Context2D<span class="operator">::</span>lineJoin() <span class="keyword">const</span>
|
|
{
|
|
<span class="keyword">switch</span> (m_state<span class="operator">.</span>lineJoin) {
|
|
<span class="keyword">case</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>RoundJoin:
|
|
<span class="keyword">return</span> <span class="string">"round"</span>;
|
|
<span class="keyword">case</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>BevelJoin:
|
|
<span class="keyword">return</span> <span class="string">"bevel"</span>;
|
|
<span class="keyword">case</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>MiterJoin:
|
|
<span class="keyword">return</span> <span class="string">"miter"</span>;
|
|
<span class="keyword">default</span>: ;
|
|
}
|
|
<span class="keyword">return</span> <span class="type"><a href="qstring.html">QString</a></span>();
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</span>setLineJoin(<span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">&</span>joinString)
|
|
{
|
|
<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>PenJoinStyle style;
|
|
<span class="keyword">if</span> (joinString <span class="operator">=</span><span class="operator">=</span> <span class="string">"round"</span>)
|
|
style <span class="operator">=</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>RoundJoin;
|
|
<span class="keyword">else</span> <span class="keyword">if</span> (joinString <span class="operator">=</span><span class="operator">=</span> <span class="string">"bevel"</span>)
|
|
style <span class="operator">=</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>BevelJoin;
|
|
<span class="keyword">else</span> <span class="comment">//if (joinString == "miter")</span>
|
|
style <span class="operator">=</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>MiterJoin;
|
|
m_state<span class="operator">.</span>lineJoin <span class="operator">=</span> style;
|
|
m_state<span class="operator">.</span>flags <span class="operator">|</span><span class="operator">=</span> DirtyLineJoin;
|
|
}
|
|
|
|
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> Context2D<span class="operator">::</span>miterLimit() <span class="keyword">const</span>
|
|
{
|
|
<span class="keyword">return</span> m_state<span class="operator">.</span>miterLimit;
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</span>setMiterLimit(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> m)
|
|
{
|
|
m_state<span class="operator">.</span>miterLimit <span class="operator">=</span> m;
|
|
m_state<span class="operator">.</span>flags <span class="operator">|</span><span class="operator">=</span> DirtyMiterLimit;
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</span>setShadowOffsetX(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x)
|
|
{
|
|
m_state<span class="operator">.</span>shadowOffsetX <span class="operator">=</span> x;
|
|
m_state<span class="operator">.</span>flags <span class="operator">|</span><span class="operator">=</span> DirtyShadowOffsetX;
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</span>setShadowOffsetY(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y)
|
|
{
|
|
m_state<span class="operator">.</span>shadowOffsetY <span class="operator">=</span> y;
|
|
m_state<span class="operator">.</span>flags <span class="operator">|</span><span class="operator">=</span> DirtyShadowOffsetY;
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</span>setShadowBlur(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> b)
|
|
{
|
|
m_state<span class="operator">.</span>shadowBlur <span class="operator">=</span> b;
|
|
m_state<span class="operator">.</span>flags <span class="operator">|</span><span class="operator">=</span> DirtyShadowBlur;
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</span>setShadowColor(<span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">&</span>str)
|
|
{
|
|
m_state<span class="operator">.</span>shadowColor <span class="operator">=</span> colorFromString(str);
|
|
m_state<span class="operator">.</span>flags <span class="operator">|</span><span class="operator">=</span> DirtyShadowColor;
|
|
}
|
|
|
|
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> Context2D<span class="operator">::</span>shadowOffsetX() <span class="keyword">const</span>
|
|
{
|
|
<span class="keyword">return</span> m_state<span class="operator">.</span>shadowOffsetX;
|
|
}
|
|
|
|
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> Context2D<span class="operator">::</span>shadowOffsetY() <span class="keyword">const</span>
|
|
{
|
|
<span class="keyword">return</span> m_state<span class="operator">.</span>shadowOffsetY;
|
|
}
|
|
|
|
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> Context2D<span class="operator">::</span>shadowBlur() <span class="keyword">const</span>
|
|
{
|
|
<span class="keyword">return</span> m_state<span class="operator">.</span>shadowBlur;
|
|
}
|
|
|
|
<span class="type"><a href="qstring.html">QString</a></span> Context2D<span class="operator">::</span>shadowColor() <span class="keyword">const</span>
|
|
{
|
|
<span class="keyword">return</span> m_state<span class="operator">.</span>shadowColor<span class="operator">.</span>name();
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</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)
|
|
{
|
|
beginPainting();
|
|
m_painter<span class="operator">.</span>save();
|
|
m_painter<span class="operator">.</span>setMatrix(m_state<span class="operator">.</span>matrix<span class="operator">,</span> <span class="keyword">false</span>);
|
|
m_painter<span class="operator">.</span>setCompositionMode(<span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_Source);
|
|
m_painter<span class="operator">.</span>fillRect(<span class="type"><a href="qrectf.html">QRectF</a></span>(x<span class="operator">,</span> y<span class="operator">,</span> w<span class="operator">,</span> h)<span class="operator">,</span> <span class="type"><a href="qcolor.html">QColor</a></span>(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">0</span>));
|
|
m_painter<span class="operator">.</span>restore();
|
|
scheduleChange();
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</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)
|
|
{
|
|
beginPainting();
|
|
m_painter<span class="operator">.</span>save();
|
|
m_painter<span class="operator">.</span>setMatrix(m_state<span class="operator">.</span>matrix<span class="operator">,</span> <span class="keyword">false</span>);
|
|
m_painter<span class="operator">.</span>fillRect(<span class="type"><a href="qrectf.html">QRectF</a></span>(x<span class="operator">,</span> y<span class="operator">,</span> w<span class="operator">,</span> h)<span class="operator">,</span> m_painter<span class="operator">.</span>brush());
|
|
m_painter<span class="operator">.</span>restore();
|
|
scheduleChange();
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</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="type"><a href="qpainterpath.html">QPainterPath</a></span> path;
|
|
path<span class="operator">.</span>addRect(x<span class="operator">,</span> y<span class="operator">,</span> w<span class="operator">,</span> h);
|
|
beginPainting();
|
|
m_painter<span class="operator">.</span>save();
|
|
m_painter<span class="operator">.</span>setMatrix(m_state<span class="operator">.</span>matrix<span class="operator">,</span> <span class="keyword">false</span>);
|
|
m_painter<span class="operator">.</span>strokePath(path<span class="operator">,</span> m_painter<span class="operator">.</span>pen());
|
|
m_painter<span class="operator">.</span>restore();
|
|
scheduleChange();
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</span>beginPath()
|
|
{
|
|
m_path <span class="operator">=</span> <span class="type"><a href="qpainterpath.html">QPainterPath</a></span>();
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</span>closePath()
|
|
{
|
|
m_path<span class="operator">.</span>closeSubpath();
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</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"><a href="qpointf.html">QPointF</a></span> pt <span class="operator">=</span> m_state<span class="operator">.</span>matrix<span class="operator">.</span>map(<span class="type"><a href="qpointf.html">QPointF</a></span>(x<span class="operator">,</span> y));
|
|
m_path<span class="operator">.</span>moveTo(pt);
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</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"><a href="qpointf.html">QPointF</a></span> pt <span class="operator">=</span> m_state<span class="operator">.</span>matrix<span class="operator">.</span>map(<span class="type"><a href="qpointf.html">QPointF</a></span>(x<span class="operator">,</span> y));
|
|
m_path<span class="operator">.</span>lineTo(pt);
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</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"><a href="qpointf.html">QPointF</a></span> cp <span class="operator">=</span> m_state<span class="operator">.</span>matrix<span class="operator">.</span>map(<span class="type"><a href="qpointf.html">QPointF</a></span>(cpx<span class="operator">,</span> cpy));
|
|
<span class="type"><a href="qpointf.html">QPointF</a></span> xy <span class="operator">=</span> m_state<span class="operator">.</span>matrix<span class="operator">.</span>map(<span class="type"><a href="qpointf.html">QPointF</a></span>(x<span class="operator">,</span> y));
|
|
m_path<span class="operator">.</span>quadTo(cp<span class="operator">,</span> xy);
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</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"><a href="qpointf.html">QPointF</a></span> cp1 <span class="operator">=</span> m_state<span class="operator">.</span>matrix<span class="operator">.</span>map(<span class="type"><a href="qpointf.html">QPointF</a></span>(cp1x<span class="operator">,</span> cp1y));
|
|
<span class="type"><a href="qpointf.html">QPointF</a></span> cp2 <span class="operator">=</span> m_state<span class="operator">.</span>matrix<span class="operator">.</span>map(<span class="type"><a href="qpointf.html">QPointF</a></span>(cp2x<span class="operator">,</span> cp2y));
|
|
<span class="type"><a href="qpointf.html">QPointF</a></span> end <span class="operator">=</span> m_state<span class="operator">.</span>matrix<span class="operator">.</span>map(<span class="type"><a href="qpointf.html">QPointF</a></span>(x<span class="operator">,</span> y));
|
|
m_path<span class="operator">.</span>cubicTo(cp1<span class="operator">,</span> cp2<span class="operator">,</span> end);
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</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="comment">//FIXME: this is surely busted</span>
|
|
<span class="type"><a href="qpointf.html">QPointF</a></span> st <span class="operator">=</span> m_state<span class="operator">.</span>matrix<span class="operator">.</span>map(<span class="type"><a href="qpointf.html">QPointF</a></span>(x1<span class="operator">,</span> y1));
|
|
<span class="type"><a href="qpointf.html">QPointF</a></span> end <span class="operator">=</span> m_state<span class="operator">.</span>matrix<span class="operator">.</span>map(<span class="type"><a href="qpointf.html">QPointF</a></span>(x2<span class="operator">,</span> y2));
|
|
m_path<span class="operator">.</span>arcTo(st<span class="operator">.</span>x()<span class="operator">,</span> st<span class="operator">.</span>y()<span class="operator">,</span>
|
|
end<span class="operator">.</span>x()<span class="operator">-</span>st<span class="operator">.</span>x()<span class="operator">,</span> end<span class="operator">.</span>y()<span class="operator">-</span>st<span class="operator">.</span>y()<span class="operator">,</span>
|
|
radius<span class="operator">,</span> <span class="number">90</span>);
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</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"><a href="qpainterpath.html">QPainterPath</a></span> path; path<span class="operator">.</span>addRect(x<span class="operator">,</span> y<span class="operator">,</span> w<span class="operator">,</span> h);
|
|
path <span class="operator">=</span> m_state<span class="operator">.</span>matrix<span class="operator">.</span>map(path);
|
|
m_path<span class="operator">.</span>addPath(path);
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</span>arc(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> xc<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> yc<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> sar<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> ear<span class="operator">,</span>
|
|
<span class="type">bool</span> anticlockwise)
|
|
{
|
|
<span class="comment">//### HACK</span>
|
|
<span class="comment">// In Qt we don't switch the coordinate system for degrees</span>
|
|
<span class="comment">// and still use the 0,0 as bottom left for degrees so we need</span>
|
|
<span class="comment">// to switch</span>
|
|
sar <span class="operator">=</span> <span class="operator">-</span>sar;
|
|
ear <span class="operator">=</span> <span class="operator">-</span>ear;
|
|
anticlockwise <span class="operator">=</span> <span class="operator">!</span>anticlockwise;
|
|
<span class="comment">//end hack</span>
|
|
|
|
<span class="type">float</span> sa <span class="operator">=</span> DEGREES(sar);
|
|
<span class="type">float</span> ea <span class="operator">=</span> DEGREES(ear);
|
|
|
|
<span class="type">double</span> span <span class="operator">=</span> <span class="number">0</span>;
|
|
|
|
<span class="type">double</span> xs <span class="operator">=</span> xc <span class="operator">-</span> radius;
|
|
<span class="type">double</span> ys <span class="operator">=</span> yc <span class="operator">-</span> radius;
|
|
<span class="type">double</span> width <span class="operator">=</span> radius<span class="operator">*</span><span class="number">2</span>;
|
|
<span class="type">double</span> height <span class="operator">=</span> radius<span class="operator">*</span><span class="number">2</span>;
|
|
|
|
<span class="keyword">if</span> (<span class="operator">!</span>anticlockwise <span class="operator">&</span><span class="operator">&</span> (ea <span class="operator"><</span> sa)) {
|
|
span <span class="operator">+</span><span class="operator">=</span> <span class="number">360</span>;
|
|
} <span class="keyword">else</span> <span class="keyword">if</span> (anticlockwise <span class="operator">&</span><span class="operator">&</span> (sa <span class="operator"><</span> ea)) {
|
|
span <span class="operator">-</span><span class="operator">=</span> <span class="number">360</span>;
|
|
}
|
|
|
|
<span class="comment">//### this is also due to switched coordinate system</span>
|
|
<span class="comment">// we would end up with a 0 span instead of 360</span>
|
|
<span class="keyword">if</span> (<span class="operator">!</span>(<a href="qvector3d.html#qFuzzyCompare">qFuzzyCompare</a>(span <span class="operator">+</span> (ea <span class="operator">-</span> sa) <span class="operator">+</span> <span class="number">1</span><span class="operator">,</span> <span class="number">1</span>) <span class="operator">&</span><span class="operator">&</span>
|
|
<a href="qvector3d.html#qFuzzyCompare">qFuzzyCompare</a>(<a href="qtglobal.html#qAbs">qAbs</a>(span)<span class="operator">,</span> <span class="number">360</span>))) {
|
|
span <span class="operator">+</span><span class="operator">=</span> ea <span class="operator">-</span> sa;
|
|
}
|
|
|
|
<span class="type"><a href="qpainterpath.html">QPainterPath</a></span> path;
|
|
path<span class="operator">.</span>moveTo(<span class="type"><a href="qpointf.html">QPointF</a></span>(xc <span class="operator">+</span> radius <span class="operator">*</span> cos(sar)<span class="operator">,</span>
|
|
yc <span class="operator">-</span> radius <span class="operator">*</span> sin(sar)));
|
|
|
|
path<span class="operator">.</span>arcTo(xs<span class="operator">,</span> ys<span class="operator">,</span> width<span class="operator">,</span> height<span class="operator">,</span> sa<span class="operator">,</span> span);
|
|
path <span class="operator">=</span> m_state<span class="operator">.</span>matrix<span class="operator">.</span>map(path);
|
|
m_path<span class="operator">.</span>addPath(path);
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</span>fill()
|
|
{
|
|
beginPainting();
|
|
m_painter<span class="operator">.</span>fillPath(m_path<span class="operator">,</span> m_painter<span class="operator">.</span>brush());
|
|
scheduleChange();
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</span>stroke()
|
|
{
|
|
beginPainting();
|
|
m_painter<span class="operator">.</span>save();
|
|
m_painter<span class="operator">.</span>setMatrix(m_state<span class="operator">.</span>matrix<span class="operator">,</span> <span class="keyword">false</span>);
|
|
<span class="type"><a href="qpainterpath.html">QPainterPath</a></span> tmp <span class="operator">=</span> m_state<span class="operator">.</span>matrix<span class="operator">.</span>inverted()<span class="operator">.</span>map(m_path);
|
|
m_painter<span class="operator">.</span>strokePath(tmp<span class="operator">,</span> m_painter<span class="operator">.</span>pen());
|
|
m_painter<span class="operator">.</span>restore();
|
|
scheduleChange();
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</span>clip()
|
|
{
|
|
m_state<span class="operator">.</span>clipPath <span class="operator">=</span> m_path;
|
|
m_state<span class="operator">.</span>flags <span class="operator">|</span><span class="operator">=</span> DirtyClippingRegion;
|
|
}
|
|
|
|
<span class="type">bool</span> Context2D<span class="operator">::</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="keyword">return</span> m_path<span class="operator">.</span>contains(<span class="type"><a href="qpointf.html">QPointF</a></span>(x<span class="operator">,</span> y));
|
|
}
|
|
|
|
ImageData Context2D<span class="operator">::</span>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)
|
|
{
|
|
Q_UNUSED(sx);
|
|
Q_UNUSED(sy);
|
|
Q_UNUSED(sw);
|
|
Q_UNUSED(sh);
|
|
<span class="keyword">return</span> ImageData();
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</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)
|
|
{
|
|
Q_UNUSED(image);
|
|
Q_UNUSED(dx);
|
|
Q_UNUSED(dy);
|
|
}
|
|
|
|
Context2D<span class="operator">::</span>Context2D(<span class="type"><a href="qobject.html">QObject</a></span> <span class="operator">*</span>parent)
|
|
: <span class="type"><a href="qobject.html">QObject</a></span>(parent)<span class="operator">,</span> m_changeTimerId(<span class="operator">-</span><span class="number">1</span>)
|
|
{
|
|
reset();
|
|
}
|
|
|
|
<span class="keyword">const</span> <span class="type"><a href="qimage.html">QImage</a></span> <span class="operator">&</span>Context2D<span class="operator">::</span>endPainting()
|
|
{
|
|
<span class="keyword">if</span> (m_painter<span class="operator">.</span>isActive())
|
|
m_painter<span class="operator">.</span>end();
|
|
<span class="keyword">return</span> m_image;
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</span>beginPainting()
|
|
{
|
|
<span class="keyword">if</span> (<span class="operator">!</span>m_painter<span class="operator">.</span>isActive()) {
|
|
m_painter<span class="operator">.</span>begin(<span class="operator">&</span>m_image);
|
|
m_painter<span class="operator">.</span>setRenderHint(<span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>Antialiasing);
|
|
<span class="keyword">if</span> (<span class="operator">!</span>m_state<span class="operator">.</span>clipPath<span class="operator">.</span>isEmpty())
|
|
m_painter<span class="operator">.</span>setClipPath(m_state<span class="operator">.</span>clipPath);
|
|
m_painter<span class="operator">.</span>setBrush(m_state<span class="operator">.</span>fillStyle);
|
|
m_painter<span class="operator">.</span>setOpacity(m_state<span class="operator">.</span>globalAlpha);
|
|
<span class="type"><a href="qpen.html">QPen</a></span> pen;
|
|
pen<span class="operator">.</span>setBrush(m_state<span class="operator">.</span>strokeStyle);
|
|
<span class="keyword">if</span> (pen<span class="operator">.</span>style() <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>NoPen)
|
|
pen<span class="operator">.</span>setStyle(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>SolidLine);
|
|
pen<span class="operator">.</span>setCapStyle(m_state<span class="operator">.</span>lineCap);
|
|
pen<span class="operator">.</span>setJoinStyle(m_state<span class="operator">.</span>lineJoin);
|
|
pen<span class="operator">.</span>setWidthF(m_state<span class="operator">.</span>lineWidth);
|
|
pen<span class="operator">.</span>setMiterLimit(m_state<span class="operator">.</span>miterLimit);
|
|
m_painter<span class="operator">.</span>setPen(pen);
|
|
} <span class="keyword">else</span> {
|
|
<span class="keyword">if</span> ((m_state<span class="operator">.</span>flags <span class="operator">&</span> DirtyClippingRegion) <span class="operator">&</span><span class="operator">&</span> <span class="operator">!</span>m_state<span class="operator">.</span>clipPath<span class="operator">.</span>isEmpty())
|
|
m_painter<span class="operator">.</span>setClipPath(m_state<span class="operator">.</span>clipPath);
|
|
<span class="keyword">if</span> (m_state<span class="operator">.</span>flags <span class="operator">&</span> DirtyFillStyle)
|
|
m_painter<span class="operator">.</span>setBrush(m_state<span class="operator">.</span>fillStyle);
|
|
<span class="keyword">if</span> (m_state<span class="operator">.</span>flags <span class="operator">&</span> DirtyGlobalAlpha)
|
|
m_painter<span class="operator">.</span>setOpacity(m_state<span class="operator">.</span>globalAlpha);
|
|
<span class="keyword">if</span> (m_state<span class="operator">.</span>flags <span class="operator">&</span> DirtyGlobalCompositeOperation)
|
|
m_painter<span class="operator">.</span>setCompositionMode(m_state<span class="operator">.</span>globalCompositeOperation);
|
|
<span class="keyword">if</span> (m_state<span class="operator">.</span>flags <span class="operator">&</span> MDirtyPen) {
|
|
<span class="type"><a href="qpen.html">QPen</a></span> pen <span class="operator">=</span> m_painter<span class="operator">.</span>pen();
|
|
<span class="keyword">if</span> (m_state<span class="operator">.</span>flags <span class="operator">&</span> DirtyStrokeStyle)
|
|
pen<span class="operator">.</span>setBrush(m_state<span class="operator">.</span>strokeStyle);
|
|
<span class="keyword">if</span> (m_state<span class="operator">.</span>flags <span class="operator">&</span> DirtyLineWidth)
|
|
pen<span class="operator">.</span>setWidthF(m_state<span class="operator">.</span>lineWidth);
|
|
<span class="keyword">if</span> (m_state<span class="operator">.</span>flags <span class="operator">&</span> DirtyLineCap)
|
|
pen<span class="operator">.</span>setCapStyle(m_state<span class="operator">.</span>lineCap);
|
|
<span class="keyword">if</span> (m_state<span class="operator">.</span>flags <span class="operator">&</span> DirtyLineJoin)
|
|
pen<span class="operator">.</span>setJoinStyle(m_state<span class="operator">.</span>lineJoin);
|
|
<span class="keyword">if</span> (m_state<span class="operator">.</span>flags <span class="operator">&</span> DirtyMiterLimit)
|
|
pen<span class="operator">.</span>setMiterLimit(m_state<span class="operator">.</span>miterLimit);
|
|
m_painter<span class="operator">.</span>setPen(pen);
|
|
}
|
|
m_state<span class="operator">.</span>flags <span class="operator">=</span> <span class="number">0</span>;
|
|
}
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</span>clear()
|
|
{
|
|
endPainting();
|
|
m_image<span class="operator">.</span>fill(<a href="qcolor.html#qRgba">qRgba</a>(<span class="number">0</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span><span class="number">0</span>));
|
|
scheduleChange();
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</span><a href="qtextstream.html#reset">reset</a>()
|
|
{
|
|
m_stateStack<span class="operator">.</span>clear();
|
|
m_state<span class="operator">.</span>matrix <span class="operator">=</span> <span class="type"><a href="qmatrix.html">QMatrix</a></span>();
|
|
m_state<span class="operator">.</span>clipPath <span class="operator">=</span> <span class="type"><a href="qpainterpath.html">QPainterPath</a></span>();
|
|
m_state<span class="operator">.</span>globalAlpha <span class="operator">=</span> <span class="number">1.0</span>;
|
|
m_state<span class="operator">.</span>globalCompositeOperation <span class="operator">=</span> <span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>CompositionMode_SourceOver;
|
|
m_state<span class="operator">.</span>strokeStyle <span class="operator">=</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>black;
|
|
m_state<span class="operator">.</span>fillStyle <span class="operator">=</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>black;
|
|
m_state<span class="operator">.</span>lineWidth <span class="operator">=</span> <span class="number">1</span>;
|
|
m_state<span class="operator">.</span>lineCap <span class="operator">=</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>FlatCap;
|
|
m_state<span class="operator">.</span>lineJoin <span class="operator">=</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>MiterJoin;
|
|
m_state<span class="operator">.</span>miterLimit <span class="operator">=</span> <span class="number">10</span>;
|
|
m_state<span class="operator">.</span>shadowOffsetX <span class="operator">=</span> <span class="number">0</span>;
|
|
m_state<span class="operator">.</span>shadowOffsetY <span class="operator">=</span> <span class="number">0</span>;
|
|
m_state<span class="operator">.</span>shadowBlur <span class="operator">=</span> <span class="number">0</span>;
|
|
m_state<span class="operator">.</span>shadowColor <span class="operator">=</span> <a href="qcolor.html#qRgba">qRgba</a>(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">0</span>);
|
|
m_state<span class="operator">.</span>flags <span class="operator">=</span> AllIsFullOfDirt;
|
|
clear();
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</span>setSize(<span class="type">int</span> width<span class="operator">,</span> <span class="type">int</span> height)
|
|
{
|
|
endPainting();
|
|
<span class="type"><a href="qimage.html">QImage</a></span> newi(width<span class="operator">,</span> height<span class="operator">,</span> <span class="type"><a href="qimage.html">QImage</a></span><span class="operator">::</span>Format_ARGB32_Premultiplied);
|
|
newi<span class="operator">.</span>fill(<a href="qcolor.html#qRgba">qRgba</a>(<span class="number">0</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span><span class="number">0</span>));
|
|
<span class="type"><a href="qpainter.html">QPainter</a></span> p(<span class="operator">&</span>newi);
|
|
p<span class="operator">.</span>drawImage(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> m_image);
|
|
p<span class="operator">.</span>end();
|
|
m_image <span class="operator">=</span> newi;
|
|
scheduleChange();
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</span>setSize(<span class="keyword">const</span> <span class="type"><a href="qsize.html">QSize</a></span> <span class="operator">&</span>size)
|
|
{
|
|
setSize(size<span class="operator">.</span>width()<span class="operator">,</span> size<span class="operator">.</span>height());
|
|
}
|
|
|
|
<span class="type"><a href="qsize.html">QSize</a></span> Context2D<span class="operator">::</span>size() <span class="keyword">const</span>
|
|
{
|
|
<span class="keyword">return</span> m_image<span class="operator">.</span>size();
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</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="keyword">if</span> (<span class="operator">!</span>image)
|
|
<span class="keyword">return</span>;
|
|
<span class="keyword">if</span> (dx <span class="operator"><</span> <span class="number">0</span>) {
|
|
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> sx <span class="operator">=</span> <a href="qtglobal.html#qAbs">qAbs</a>(dx);
|
|
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> sy <span class="operator">=</span> <a href="qtglobal.html#qAbs">qAbs</a>(dy);
|
|
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> sw <span class="operator">=</span> image<span class="operator">-</span><span class="operator">></span>width() <span class="operator">-</span> sx;
|
|
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> sh <span class="operator">=</span> image<span class="operator">-</span><span class="operator">></span>height() <span class="operator">-</span> sy;
|
|
|
|
drawImage(image<span class="operator">,</span> sx<span class="operator">,</span> sy<span class="operator">,</span> sw<span class="operator">,</span> sh<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> sw<span class="operator">,</span> sh);
|
|
} <span class="keyword">else</span> {
|
|
beginPainting();
|
|
m_painter<span class="operator">.</span>drawImage(<span class="type"><a href="qpointf.html">QPointF</a></span>(dx<span class="operator">,</span> dy)<span class="operator">,</span> image<span class="operator">-</span><span class="operator">></span>image());
|
|
scheduleChange();
|
|
}
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</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="keyword">if</span> (<span class="operator">!</span>image)
|
|
<span class="keyword">return</span>;
|
|
beginPainting();
|
|
m_painter<span class="operator">.</span>drawImage(<span class="type"><a href="qrectf.html">QRectF</a></span>(dx<span class="operator">,</span> dy<span class="operator">,</span> dw<span class="operator">,</span> dh)<span class="operator">.</span>toRect()<span class="operator">,</span> image<span class="operator">-</span><span class="operator">></span>image());
|
|
scheduleChange();
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</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="keyword">if</span> (<span class="operator">!</span>image)
|
|
<span class="keyword">return</span>;
|
|
beginPainting();
|
|
m_painter<span class="operator">.</span>drawImage(<span class="type"><a href="qrectf.html">QRectF</a></span>(dx<span class="operator">,</span> dy<span class="operator">,</span> dw<span class="operator">,</span> dh)<span class="operator">,</span> image<span class="operator">-</span><span class="operator">></span>image()<span class="operator">,</span>
|
|
<span class="type"><a href="qrectf.html">QRectF</a></span>(sx<span class="operator">,</span> sy<span class="operator">,</span> sw<span class="operator">,</span> sh));
|
|
scheduleChange();
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</span>scheduleChange()
|
|
{
|
|
<span class="keyword">if</span> (m_changeTimerId <span class="operator">=</span><span class="operator">=</span> <span class="operator">-</span><span class="number">1</span>)
|
|
m_changeTimerId <span class="operator">=</span> startTimer(<span class="number">0</span>);
|
|
}
|
|
|
|
<span class="type">void</span> Context2D<span class="operator">::</span>timerEvent(<span class="type"><a href="qtimerevent.html">QTimerEvent</a></span> <span class="operator">*</span>e)
|
|
{
|
|
<span class="keyword">if</span> (e<span class="operator">-</span><span class="operator">></span>timerId() <span class="operator">=</span><span class="operator">=</span> m_changeTimerId) {
|
|
killTimer(m_changeTimerId);
|
|
m_changeTimerId <span class="operator">=</span> <span class="operator">-</span><span class="number">1</span>;
|
|
<span class="keyword">emit</span> changed(endPainting());
|
|
} <span class="keyword">else</span> {
|
|
<span class="type"><a href="qobject.html">QObject</a></span><span class="operator">::</span>timerEvent(e);
|
|
}
|
|
}</pre>
|
|
</div>
|
|
<!-- @@@script/context2d/context2d.cpp -->
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<acronym title="Copyright">©</acronym> 2015 The Qt Company Ltd.
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Documentation contributions included herein are the copyrights of
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The documentation provided herein is licensed under the terms of the
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Documentation sources may be obtained from <a href="http://www.qt-project.org">
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