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<h1 class="title">Qt 3 Support Members for QPainter</h1>
<p><b>The following class members are part of the <a href="qt3support.html">Qt 3 support layer</a>.</b> They are provided to help you port old code to Qt 4. We advise against using them in new code.</p>
<p><ul><li><a href="qpainter.html">QPainter class reference</a></li></ul></p>
<h2>Public Functions</h2>
<table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> const QColor &amp; </td><td class="memItemRight bottomAlign"><b><a href="qpainter-qt3.html#backgroundColor">backgroundColor</a></b> () const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qpainter-qt3.html#begin-2">begin</a></b> ( QPaintDevice * <i>device</i>, const QWidget * <i>init</i> )</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> QRect </td><td class="memItemRight bottomAlign"><b><a href="qpainter-qt3.html#boundingRect-2">boundingRect</a></b> ( const QRect &amp; <i>rectangle</i>, int <i>flags</i>, const QString &amp; <i>text</i>, int <i>length</i> )</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> QRect </td><td class="memItemRight bottomAlign"><b><a href="qpainter-qt3.html#boundingRect-3">boundingRect</a></b> ( int <i>x</i>, int <i>y</i>, int <i>width</i>, int <i>height</i>, int <i>flags</i>, const QString &amp; <i>text</i>, int <i>length</i> )</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qpainter-qt3.html#drawConvexPolygon-5">drawConvexPolygon</a></b> ( const QPolygonF &amp; <i>polygon</i>, int <i>index</i>, int <i>count</i> = -1 )</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qpainter-qt3.html#drawConvexPolygon-6">drawConvexPolygon</a></b> ( const QPolygon &amp; <i>polygon</i>, int <i>index</i>, int <i>count</i> = -1 )</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qpainter-qt3.html#drawCubicBezier">drawCubicBezier</a></b> ( const QPolygon &amp; <i>controlPoints</i>, int <i>index</i> = 0 )</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qpainter-qt3.html#drawLineSegments">drawLineSegments</a></b> ( const QPolygon &amp; <i>polygon</i>, int <i>index</i> = 0, int <i>count</i> = -1 )</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qpainter-qt3.html#drawPoints-5">drawPoints</a></b> ( const QPolygon &amp; <i>polygon</i>, int <i>index</i>, int <i>count</i> = -1 )</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qpainter-qt3.html#drawPolygon-3">drawPolygon</a></b> ( const QPolygonF &amp; <i>polygon</i>, bool <i>winding</i>, int <i>index</i> = 0, int <i>count</i> = -1 )</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qpainter-qt3.html#drawPolygon-4">drawPolygon</a></b> ( const QPolygon &amp; <i>polygon</i>, bool <i>winding</i>, int <i>index</i> = 0, int <i>count</i> = -1 )</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qpainter-qt3.html#drawPolyline-3">drawPolyline</a></b> ( const QPolygon &amp; <i>polygon</i>, int <i>index</i>, int <i>count</i> = -1 )</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qpainter-qt3.html#drawText-3">drawText</a></b> ( int <i>x</i>, int <i>y</i>, const QString &amp; <i>text</i>, int <i>pos</i>, int <i>length</i> )</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qpainter-qt3.html#drawText-4">drawText</a></b> ( const QPoint &amp; <i>point</i>, const QString &amp; <i>text</i>, int <i>pos</i>, int <i>length</i> )</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qpainter-qt3.html#drawText-5">drawText</a></b> ( int <i>x</i>, int <i>y</i>, const QString &amp; <i>text</i>, int <i>length</i> )</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qpainter-qt3.html#drawText-6">drawText</a></b> ( const QPoint &amp; <i>point</i>, const QString &amp; <i>text</i>, int <i>length</i> )</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qpainter-qt3.html#drawText-7">drawText</a></b> ( const QRect &amp; <i>rectangle</i>, int <i>flags</i>, const QString &amp; <i>text</i>, int <i>length</i>, QRect * <i>br</i> = 0 )</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qpainter-qt3.html#drawText-8">drawText</a></b> ( int <i>x</i>, int <i>y</i>, int <i>width</i>, int <i>height</i>, int <i>flags</i>, const QString &amp; <i>text</i>, int <i>length</i>, QRect * <i>br</i> = 0 )</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qpainter-qt3.html#hasViewXForm">hasViewXForm</a></b> () const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qpainter-qt3.html#hasWorldXForm">hasWorldXForm</a></b> () const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qpainter-qt3.html#resetXForm">resetXForm</a></b> ()</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qpainter-qt3.html#setBackgroundColor">setBackgroundColor</a></b> ( const QColor &amp; <i>color</i> )</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qpainter-qt3.html#setViewXForm">setViewXForm</a></b> ( bool <i>enabled</i> )</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qpainter-qt3.html#setWorldXForm">setWorldXForm</a></b> ( bool <i>enabled</i> )</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> qreal </td><td class="memItemRight bottomAlign"><b><a href="qpainter-qt3.html#translationX">translationX</a></b> () const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> qreal </td><td class="memItemRight bottomAlign"><b><a href="qpainter-qt3.html#translationY">translationY</a></b> () const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> QPoint </td><td class="memItemRight bottomAlign"><b><a href="qpainter-qt3.html#xForm">xForm</a></b> ( const QPoint &amp; <i>point</i> ) const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> QRect </td><td class="memItemRight bottomAlign"><b><a href="qpainter-qt3.html#xForm-2">xForm</a></b> ( const QRect &amp; <i>rectangle</i> ) const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> QPolygon </td><td class="memItemRight bottomAlign"><b><a href="qpainter-qt3.html#xForm-3">xForm</a></b> ( const QPolygon &amp; <i>polygon</i> ) const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> QPolygon </td><td class="memItemRight bottomAlign"><b><a href="qpainter-qt3.html#xForm-4">xForm</a></b> ( const QPolygon &amp; <i>polygon</i>, int <i>index</i>, int <i>count</i> ) const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> QPoint </td><td class="memItemRight bottomAlign"><b><a href="qpainter-qt3.html#xFormDev">xFormDev</a></b> ( const QPoint &amp; <i>point</i> ) const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> QRect </td><td class="memItemRight bottomAlign"><b><a href="qpainter-qt3.html#xFormDev-2">xFormDev</a></b> ( const QRect &amp; <i>rectangle</i> ) const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> QPolygon </td><td class="memItemRight bottomAlign"><b><a href="qpainter-qt3.html#xFormDev-3">xFormDev</a></b> ( const QPolygon &amp; <i>polygon</i> ) const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> QPolygon </td><td class="memItemRight bottomAlign"><b><a href="qpainter-qt3.html#xFormDev-4">xFormDev</a></b> ( const QPolygon &amp; <i>polygon</i>, int <i>index</i>, int <i>count</i> ) const</td></tr>
</table>
<h2>Static Public Members</h2>
<table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qpainter-qt3.html#redirect">redirect</a></b> ( QPaintDevice * <i>pdev</i>, QPaintDevice * <i>replacement</i> )</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> QPaintDevice * </td><td class="memItemRight bottomAlign"><b><a href="qpainter-qt3.html#redirect-2">redirect</a></b> ( QPaintDevice * <i>pdev</i> )</td></tr>
</table>
<h2>Member Function Documentation</h2>
<!-- $$$backgroundColor[overload1]$$$backgroundColor -->
<h3 class="fn"><a name="backgroundColor"></a>const <span class="type"><a href="qcolor.html">QColor</a></span> &amp; QPainter::<span class="name">backgroundColor</span> () const</h3>
<p>Use <a href="qpainter.html#background">background</a>() and <a href="qbrush.html#color">QBrush::color</a>() instead.</p>
<p>For example, if you have code like</p>
<pre class="cpp"> QColor myColor = backgroundColor();</pre>
<p>you can rewrite it as</p>
<pre class="cpp"> <span class="type"><a href="qcolor.html">QColor</a></span> myColor <span class="operator">=</span> <a href="qpainter.html#background">background</a>()<span class="operator">.</span>color();</pre>
<p>Note that the background can be a complex brush such as a texture or a gradient.</p>
<p><b>See also </b><a href="qpainter-qt3.html#setBackgroundColor">setBackgroundColor</a>().</p>
<!-- @@@backgroundColor -->
<!-- $$$begin$$$beginQPaintDevice*constQWidget* -->
<h3 class="fn"><a name="begin-2"></a><span class="type">bool</span> QPainter::<span class="name">begin</span> ( <span class="type"><a href="qpaintdevice.html">QPaintDevice</a></span> * <i>device</i>, const <span class="type"><a href="qwidget.html">QWidget</a></span> * <i>init</i> )</h3>
<p>Use <a href="qpainter.html#begin">begin</a>() instead.</p>
<p>If the paint <i>device</i> is a <a href="qwidget.html">QWidget</a>, <a href="qpainter.html">QPainter</a> is initialized after the widget's settings automatically. Otherwise, you must call the <a href="qpainter.html#initFrom">initFrom</a>() function to initialize the painters pen, background and font to the same as any given widget.</p>
<p>For example, if you have code like</p>
<pre class="cpp"> QPainter painter(this);
painter.begin(device, init);</pre>
<p>you can rewrite it as</p>
<pre class="cpp"> <span class="type"><a href="qpainter.html">QPainter</a></span> painter(<span class="keyword">this</span>);
painter<span class="operator">.</span><a href="qpainter.html#begin">begin</a>(device);
painter<span class="operator">.</span><a href="qpainter.html#initFrom">initFrom</a>(init);</pre>
<!-- @@@begin -->
<!-- $$$boundingRect$$$boundingRectconstQRect&intconstQString&int -->
<h3 class="fn"><a name="boundingRect-2"></a><span class="type"><a href="qrect.html">QRect</a></span> QPainter::<span class="name">boundingRect</span> ( const <span class="type"><a href="qrect.html">QRect</a></span> &amp; <i>rectangle</i>, <span class="type">int</span> <i>flags</i>, const <span class="type"><a href="qstring.html">QString</a></span> &amp; <i>text</i>, <span class="type">int</span> <i>length</i> )</h3>
<p>Returns the bounding rectangle for the given <i>length</i> of the <i>text</i> constrained by the provided <i>rectangle</i>.</p>
<p>Use <a href="qpainter.html#boundingRect">boundingRect</a>() combined with <a href="qstring.html#left">QString::left</a>() instead.</p>
<p>For example, if you have code like</p>
<pre class="cpp"> QRect rectangle = boundingRect(rect, flags, text, length);</pre>
<p>you can rewrite it as</p>
<pre class="cpp"> <span class="type"><a href="qrect.html">QRect</a></span> rectangle <span class="operator">=</span> <a href="qpainter.html#boundingRect">boundingRect</a>(rect<span class="operator">,</span> flags<span class="operator">,</span> text<span class="operator">.</span>left(length));</pre>
<!-- @@@boundingRect -->
<!-- $$$boundingRect$$$boundingRectintintintintintconstQString&int -->
<h3 class="fn"><a name="boundingRect-3"></a><span class="type"><a href="qrect.html">QRect</a></span> QPainter::<span class="name">boundingRect</span> ( <span class="type">int</span> <i>x</i>, <span class="type">int</span> <i>y</i>, <span class="type">int</span> <i>width</i>, <span class="type">int</span> <i>height</i>, <span class="type">int</span> <i>flags</i>, const <span class="type"><a href="qstring.html">QString</a></span> &amp; <i>text</i>, <span class="type">int</span> <i>length</i> )</h3>
<p>Returns the bounding rectangle for the given <i>length</i> of the <i>text</i> constrained by the rectangle that begins at point (<i>x</i>, <i>y</i>) with the given <i>width</i> and <i>height</i>.</p>
<p>Use <a href="qpainter.html#boundingRect">boundingRect</a>() combined with <a href="qstring.html#left">QString::left</a>() instead.</p>
<p>For example, if you have code like</p>
<pre class="cpp"> QRect rectangle = boundingRect(x, y, width, height, flags, text, length);</pre>
<p>you can rewrite it as</p>
<pre class="cpp"> <span class="type"><a href="qrect.html">QRect</a></span> rectangle <span class="operator">=</span> <a href="qpainter.html#boundingRect">boundingRect</a>(x<span class="operator">,</span> y<span class="operator">,</span> width<span class="operator">,</span> height<span class="operator">,</span> flags<span class="operator">,</span> text<span class="operator">.</span>left(length));</pre>
<!-- @@@boundingRect -->
<!-- $$$drawConvexPolygon$$$drawConvexPolygonconstQPolygonF&intint -->
<h3 class="fn"><a name="drawConvexPolygon-5"></a><span class="type">void</span> QPainter::<span class="name">drawConvexPolygon</span> ( const <span class="type"><a href="qpolygonf.html">QPolygonF</a></span> &amp; <i>polygon</i>, <span class="type">int</span> <i>index</i>, <span class="type">int</span> <i>count</i> = -1 )</h3>
<p>This is an overloaded function.</p>
<p>Use <a href="qpainter.html#drawConvexPolygon">drawConvexPolygon</a>() combined with <a href="qvector.html#constData">QPolygonF::constData</a>() instead.</p>
<p>For example, if you have code like</p>
<pre class="cpp"> QPainter painter(this);
painter.drawConvexPolygon(polygon, index, count);</pre>
<p>you can rewrite it as</p>
<pre class="cpp"> <span class="type">int</span> pointCount <span class="operator">=</span> (count <span class="operator">=</span><span class="operator">=</span> <span class="operator">-</span><span class="number">1</span>) <span class="operator">?</span> polygon<span class="operator">.</span>size() <span class="operator">-</span> index : count;
<span class="type"><a href="qpainter.html">QPainter</a></span> painter(<span class="keyword">this</span>);
painter<span class="operator">.</span><a href="qpainter.html#drawConvexPolygon">drawConvexPolygon</a>(polygon<span class="operator">.</span>constData() <span class="operator">+</span> index<span class="operator">,</span> pointCount);</pre>
<!-- @@@drawConvexPolygon -->
<!-- $$$drawConvexPolygon$$$drawConvexPolygonconstQPolygon&intint -->
<h3 class="fn"><a name="drawConvexPolygon-6"></a><span class="type">void</span> QPainter::<span class="name">drawConvexPolygon</span> ( const <span class="type"><a href="qpolygon.html">QPolygon</a></span> &amp; <i>polygon</i>, <span class="type">int</span> <i>index</i>, <span class="type">int</span> <i>count</i> = -1 )</h3>
<p>This is an overloaded function.</p>
<p>Use <a href="qpainter.html#drawConvexPolygon">drawConvexPolygon</a>() combined with <a href="qvector.html#constData">QPolygon::constData</a>() instead.</p>
<p>For example, if you have code like</p>
<pre class="cpp"> QPainter painter(this);
painter.drawConvexPolygon(polygon, index, count);</pre>
<p>you can rewrite it as</p>
<pre class="cpp"> <span class="type">int</span> pointCount <span class="operator">=</span> (count <span class="operator">=</span><span class="operator">=</span> <span class="operator">-</span><span class="number">1</span>) <span class="operator">?</span> polygon<span class="operator">.</span>size() <span class="operator">-</span> index : count;
<span class="type"><a href="qpainter.html">QPainter</a></span> painter(<span class="keyword">this</span>);
painter<span class="operator">.</span><a href="qpainter.html#drawConvexPolygon">drawConvexPolygon</a>(polygon<span class="operator">.</span>constData() <span class="operator">+</span> index<span class="operator">,</span> pointCount);</pre>
<!-- @@@drawConvexPolygon -->
<!-- $$$drawCubicBezier[overload1]$$$drawCubicBezierconstQPolygon&int -->
<h3 class="fn"><a name="drawCubicBezier"></a><span class="type">void</span> QPainter::<span class="name">drawCubicBezier</span> ( const <span class="type"><a href="qpolygon.html">QPolygon</a></span> &amp; <i>controlPoints</i>, <span class="type">int</span> <i>index</i> = 0 )</h3>
<p>Draws a cubic Bezier curve defined by the <i>controlPoints</i>, starting at <i>controlPoints</i><i>[index]</i> (<i>index</i> defaults to 0). Points after <i>controlPoints</i><i>[index + 3]</i> are ignored. Nothing happens if there aren't enough control points.</p>
<p>Use <a href="qpainter.html#strokePath">strokePath</a>() instead.</p>
<p>For example, if you have code like</p>
<pre class="cpp"> QPainter painter(this);
painter.drawCubicBezier(controlPoints, index)</pre>
<p>you can rewrite it as</p>
<pre class="cpp"> <span class="type"><a href="qpainterpath.html">QPainterPath</a></span> path;
path<span class="operator">.</span>moveTo(controlPoints<span class="operator">.</span>at(index));
path<span class="operator">.</span>cubicTo(controlPoints<span class="operator">.</span>at(index<span class="operator">+</span><span class="number">1</span>)<span class="operator">,</span>
controlPoints<span class="operator">.</span>at(index<span class="operator">+</span><span class="number">2</span>)<span class="operator">,</span>
controlPoints<span class="operator">.</span>at(index<span class="operator">+</span><span class="number">3</span>));
<span class="type"><a href="qpainter.html">QPainter</a></span> painter(<span class="keyword">this</span>);
painter<span class="operator">.</span><a href="qpainter.html#strokePath">strokePath</a>(path<span class="operator">,</span> painter<span class="operator">.</span>pen());</pre>
<!-- @@@drawCubicBezier -->
<!-- $$$drawLineSegments[overload1]$$$drawLineSegmentsconstQPolygon&intint -->
<h3 class="fn"><a name="drawLineSegments"></a><span class="type">void</span> QPainter::<span class="name">drawLineSegments</span> ( const <span class="type"><a href="qpolygon.html">QPolygon</a></span> &amp; <i>polygon</i>, <span class="type">int</span> <i>index</i> = 0, <span class="type">int</span> <i>count</i> = -1 )</h3>
<p>Draws <i>count</i> separate lines from points defined by the <i>polygon</i>, starting at <i>polygon</i><i>[index]</i> (<i>index</i> defaults to 0). If <i>count</i> is -1 (the default) all points until the end of the array are used.</p>
<p>Use <a href="qpainter.html#drawLines">drawLines</a>() combined with <a href="qvector.html#constData">QPolygon::constData</a>() instead.</p>
<p>For example, if you have code like</p>
<pre class="cpp"> QPainter painter(this);
painter.drawLineSegments(polygon, index, count);</pre>
<p>you can rewrite it as</p>
<pre class="cpp"> <span class="type">int</span> lineCount <span class="operator">=</span> (count <span class="operator">=</span><span class="operator">=</span> <span class="operator">-</span><span class="number">1</span>) <span class="operator">?</span> (polygon<span class="operator">.</span>size() <span class="operator">-</span> index) <span class="operator">/</span> <span class="number">2</span> : count;
<span class="type"><a href="qpainter.html">QPainter</a></span> painter(<span class="keyword">this</span>);
painter<span class="operator">.</span><a href="qpainter.html#drawLines">drawLines</a>(polygon<span class="operator">.</span>constData() <span class="operator">+</span> index <span class="operator">*</span> <span class="number">2</span><span class="operator">,</span> lineCount);</pre>
<!-- @@@drawLineSegments -->
<!-- $$$drawPoints$$$drawPointsconstQPolygon&intint -->
<h3 class="fn"><a name="drawPoints-5"></a><span class="type">void</span> QPainter::<span class="name">drawPoints</span> ( const <span class="type"><a href="qpolygon.html">QPolygon</a></span> &amp; <i>polygon</i>, <span class="type">int</span> <i>index</i>, <span class="type">int</span> <i>count</i> = -1 )</h3>
<p>This is an overloaded function.</p>
<p>Draws <i>count</i> points in the vector <i>polygon</i> starting on <i>index</i> using the current pen.</p>
<p>Use <a href="qpainter.html#drawPoints">drawPoints</a>() combined with <a href="qvector.html#constData">QPolygon::constData</a>() instead.</p>
<p>For example, if you have code like</p>
<pre class="cpp"> QPainter painter(this);
painter.drawPoints(polygon, index, count);</pre>
<p>you can rewrite it as</p>
<pre class="cpp"> <span class="type">int</span> pointCount <span class="operator">=</span> (count <span class="operator">=</span><span class="operator">=</span> <span class="operator">-</span><span class="number">1</span>) <span class="operator">?</span> polygon<span class="operator">.</span>size() <span class="operator">-</span> index : count;
<span class="type"><a href="qpainter.html">QPainter</a></span> painter(<span class="keyword">this</span>);
painter<span class="operator">.</span><a href="qpainter.html#drawPoints">drawPoints</a>(polygon<span class="operator">.</span>constData() <span class="operator">+</span> index<span class="operator">,</span> pointCount);</pre>
<!-- @@@drawPoints -->
<!-- $$$drawPolygon$$$drawPolygonconstQPolygonF&boolintint -->
<h3 class="fn"><a name="drawPolygon-3"></a><span class="type">void</span> QPainter::<span class="name">drawPolygon</span> ( const <span class="type"><a href="qpolygonf.html">QPolygonF</a></span> &amp; <i>polygon</i>, <span class="type">bool</span> <i>winding</i>, <span class="type">int</span> <i>index</i> = 0, <span class="type">int</span> <i>count</i> = -1 )</h3>
<p>This is an overloaded function.</p>
<p>Use <a href="qpainter.html#drawPolygon">drawPolygon</a>() combined with <a href="qvector.html#constData">QPolygonF::constData</a>() instead.</p>
<p>For example, if you have code like</p>
<pre class="cpp"> QPainter painter(this);
painter.drawPolygon(polygon, winding, index, count);</pre>
<p>you can rewrite it as</p>
<pre class="cpp"> <span class="type">int</span> pointCount <span class="operator">=</span> (count <span class="operator">=</span><span class="operator">=</span> <span class="operator">-</span><span class="number">1</span>) <span class="operator">?</span> polygon<span class="operator">.</span>size() <span class="operator">-</span> index : count;
<span class="type">int</span> fillRule <span class="operator">=</span> winding <span class="operator">?</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>WindingFill : <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>OddEvenFill;
<span class="type"><a href="qpainter.html">QPainter</a></span> painter(<span class="keyword">this</span>);
painter<span class="operator">.</span><a href="qpainter.html#drawPolygon">drawPolygon</a>( polygon<span class="operator">.</span>constData() <span class="operator">+</span> index<span class="operator">,</span> pointCount<span class="operator">,</span> fillRule);</pre>
<!-- @@@drawPolygon -->
<!-- $$$drawPolygon$$$drawPolygonconstQPolygon&boolintint -->
<h3 class="fn"><a name="drawPolygon-4"></a><span class="type">void</span> QPainter::<span class="name">drawPolygon</span> ( const <span class="type"><a href="qpolygon.html">QPolygon</a></span> &amp; <i>polygon</i>, <span class="type">bool</span> <i>winding</i>, <span class="type">int</span> <i>index</i> = 0, <span class="type">int</span> <i>count</i> = -1 )</h3>
<p>This is an overloaded function.</p>
<p>Use <a href="qpainter.html#drawPolygon">drawPolygon</a>() combined with <a href="qvector.html#constData">QPolygon::constData</a>() instead.</p>
<p>For example, if you have code like</p>
<pre class="cpp"> QPainter painter(this);
painter.drawPolygon(polygon, winding, index, count);</pre>
<p>you can rewrite it as</p>
<pre class="cpp"> <span class="type">int</span> pointCount <span class="operator">=</span> (count <span class="operator">=</span><span class="operator">=</span> <span class="operator">-</span><span class="number">1</span>) <span class="operator">?</span> polygon<span class="operator">.</span>size() <span class="operator">-</span> index : count;
<span class="type">int</span> fillRule <span class="operator">=</span> winding <span class="operator">?</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>WindingFill : <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>OddEvenFill;
<span class="type"><a href="qpainter.html">QPainter</a></span> painter(<span class="keyword">this</span>);
painter<span class="operator">.</span><a href="qpainter.html#drawPolygon">drawPolygon</a>( polygon<span class="operator">.</span>constData() <span class="operator">+</span> index<span class="operator">,</span> pointCount<span class="operator">,</span> fillRule);</pre>
<!-- @@@drawPolygon -->
<!-- $$$drawPolyline$$$drawPolylineconstQPolygon&intint -->
<h3 class="fn"><a name="drawPolyline-3"></a><span class="type">void</span> QPainter::<span class="name">drawPolyline</span> ( const <span class="type"><a href="qpolygon.html">QPolygon</a></span> &amp; <i>polygon</i>, <span class="type">int</span> <i>index</i>, <span class="type">int</span> <i>count</i> = -1 )</h3>
<p>This is an overloaded function.</p>
<p>Draws the polyline defined by the <i>count</i> lines of the given <i>polygon</i> starting at <i>index</i> (<i>index</i> defaults to 0).</p>
<p>Use <a href="qpainter.html#drawPolyline">drawPolyline</a>() combined with <a href="qvector.html#constData">QPolygon::constData</a>() instead.</p>
<p>For example, if you have code like</p>
<pre class="cpp"> QPainter painter(this);
painter.drawPolyline(polygon, index, count);</pre>
<p>you can rewrite it as</p>
<pre class="cpp"> <span class="type">int</span> pointCount <span class="operator">=</span> (count <span class="operator">=</span><span class="operator">=</span> <span class="operator">-</span><span class="number">1</span>) <span class="operator">?</span> polygon<span class="operator">.</span>size() <span class="operator">-</span> index : count;
<span class="type"><a href="qpainter.html">QPainter</a></span> painter(<span class="keyword">this</span>);
painter<span class="operator">.</span><a href="qpainter.html#drawPolyline">drawPolyline</a>(polygon<span class="operator">.</span>constData() <span class="operator">+</span> index<span class="operator">,</span> pointCount);</pre>
<!-- @@@drawPolyline -->
<!-- $$$drawText$$$drawTextintintconstQString&intint -->
<h3 class="fn"><a name="drawText-3"></a><span class="type">void</span> QPainter::<span class="name">drawText</span> ( <span class="type">int</span> <i>x</i>, <span class="type">int</span> <i>y</i>, const <span class="type"><a href="qstring.html">QString</a></span> &amp; <i>text</i>, <span class="type">int</span> <i>pos</i>, <span class="type">int</span> <i>length</i> )</h3>
<p>Use <a href="qpainter.html#drawText">drawText</a>() combined with <a href="qstring.html#mid">QString::mid</a>() instead.</p>
<p>For example, if you have code like</p>
<pre class="cpp"> QPainter painter(this);
painter.drawText(x, y, text, pos, length);</pre>
<p>you can rewrite it as</p>
<pre class="cpp"> <span class="type"><a href="qpainter.html">QPainter</a></span> painter(<span class="keyword">this</span>);
painter<span class="operator">.</span><a href="qpainter.html#drawText">drawText</a>(x<span class="operator">,</span> y<span class="operator">,</span> text<span class="operator">.</span>mid(pos<span class="operator">,</span> length));</pre>
<!-- @@@drawText -->
<!-- $$$drawText$$$drawTextconstQPoint&constQString&intint -->
<h3 class="fn"><a name="drawText-4"></a><span class="type">void</span> QPainter::<span class="name">drawText</span> ( const <span class="type"><a href="qpoint.html">QPoint</a></span> &amp; <i>point</i>, const <span class="type"><a href="qstring.html">QString</a></span> &amp; <i>text</i>, <span class="type">int</span> <i>pos</i>, <span class="type">int</span> <i>length</i> )</h3>
<p>Use <a href="qpainter.html#drawText">drawText</a>() combined with <a href="qstring.html#mid">QString::mid</a>() instead.</p>
<p>For example, if you have code like</p>
<pre class="cpp"> QPainter painter(this);
painter.drawText(point, text, pos, length);</pre>
<p>you can rewrite it as</p>
<pre class="cpp"> <span class="type"><a href="qpainter.html">QPainter</a></span> painter(<span class="keyword">this</span>);
painter<span class="operator">.</span><a href="qpainter.html#drawText">drawText</a>(point<span class="operator">,</span> text<span class="operator">.</span>mid(pos<span class="operator">,</span> length));</pre>
<!-- @@@drawText -->
<!-- $$$drawText$$$drawTextintintconstQString&int -->
<h3 class="fn"><a name="drawText-5"></a><span class="type">void</span> QPainter::<span class="name">drawText</span> ( <span class="type">int</span> <i>x</i>, <span class="type">int</span> <i>y</i>, const <span class="type"><a href="qstring.html">QString</a></span> &amp; <i>text</i>, <span class="type">int</span> <i>length</i> )</h3>
<p>Use <a href="qpainter.html#drawText">drawText</a>() combined with <a href="qstring.html#left">QString::left</a>() instead.</p>
<p>For example, if you have code like</p>
<pre class="cpp"> QPainter painter(this);
painter.drawText(x, y, text, length);</pre>
<p>you can rewrite it as</p>
<pre class="cpp"> <span class="type"><a href="qpainter.html">QPainter</a></span> painter(<span class="keyword">this</span>);
painter<span class="operator">.</span><a href="qpainter.html#drawText">drawText</a>(x<span class="operator">,</span> y<span class="operator">,</span> text<span class="operator">.</span>left(length));</pre>
<!-- @@@drawText -->
<!-- $$$drawText$$$drawTextconstQPoint&constQString&int -->
<h3 class="fn"><a name="drawText-6"></a><span class="type">void</span> QPainter::<span class="name">drawText</span> ( const <span class="type"><a href="qpoint.html">QPoint</a></span> &amp; <i>point</i>, const <span class="type"><a href="qstring.html">QString</a></span> &amp; <i>text</i>, <span class="type">int</span> <i>length</i> )</h3>
<p>Use <a href="qpainter.html#drawText">drawText</a>() combined with <a href="qstring.html#left">QString::left</a>() instead.</p>
<p>For example, if you have code like</p>
<pre class="cpp"> QPainter painter(this);
painter.drawText(point, text, length);</pre>
<p>you can rewrite it as</p>
<pre class="cpp"> <span class="type"><a href="qpainter.html">QPainter</a></span> painter(<span class="keyword">this</span>);
painter<span class="operator">.</span><a href="qpainter.html#drawText">drawText</a>(point<span class="operator">,</span> text<span class="operator">.</span>left(length));</pre>
<!-- @@@drawText -->
<!-- $$$drawText$$$drawTextconstQRect&intconstQString&intQRect* -->
<h3 class="fn"><a name="drawText-7"></a><span class="type">void</span> QPainter::<span class="name">drawText</span> ( const <span class="type"><a href="qrect.html">QRect</a></span> &amp; <i>rectangle</i>, <span class="type">int</span> <i>flags</i>, const <span class="type"><a href="qstring.html">QString</a></span> &amp; <i>text</i>, <span class="type">int</span> <i>length</i>, <span class="type"><a href="qrect.html">QRect</a></span> * <i>br</i> = 0 )</h3>
<p>Use <a href="qpainter.html#drawText">drawText</a>() combined with <a href="qstring.html#left">QString::left</a>() instead.</p>
<p>For example, if you have code like</p>
<pre class="cpp"> QPainter painter(this);
painter.drawText(rectangle, flags, text, length, br );</pre>
<p>you can rewrite it as</p>
<pre class="cpp"> <span class="type"><a href="qpainter.html">QPainter</a></span> painter(<span class="keyword">this</span>);
painter<span class="operator">.</span><a href="qpainter.html#drawText">drawText</a>(rectangle<span class="operator">,</span> flags<span class="operator">,</span> text<span class="operator">.</span>left(length)<span class="operator">,</span> br );</pre>
<!-- @@@drawText -->
<!-- $$$drawText$$$drawTextintintintintintconstQString&intQRect* -->
<h3 class="fn"><a name="drawText-8"></a><span class="type">void</span> QPainter::<span class="name">drawText</span> ( <span class="type">int</span> <i>x</i>, <span class="type">int</span> <i>y</i>, <span class="type">int</span> <i>width</i>, <span class="type">int</span> <i>height</i>, <span class="type">int</span> <i>flags</i>, const <span class="type"><a href="qstring.html">QString</a></span> &amp; <i>text</i>, <span class="type">int</span> <i>length</i>, <span class="type"><a href="qrect.html">QRect</a></span> * <i>br</i> = 0 )</h3>
<p>Use <a href="qpainter.html#drawText">drawText</a>() combined with <a href="qstring.html#left">QString::left</a>() instead.</p>
<p>For example, if you have code like</p>
<pre class="cpp"> QPainter painter(this);
painter.drawText(x, y, width, height, flags, text, length, br );</pre>
<p>you can rewrite it as</p>
<pre class="cpp"> <span class="type"><a href="qpainter.html">QPainter</a></span> painter(<span class="keyword">this</span>);
painter<span class="operator">.</span><a href="qpainter.html#drawText">drawText</a>(x<span class="operator">,</span> y<span class="operator">,</span> width<span class="operator">,</span> height<span class="operator">,</span> flags<span class="operator">,</span> text<span class="operator">.</span>left(length)<span class="operator">,</span> br );</pre>
<!-- @@@drawText -->
<!-- $$$hasViewXForm[overload1]$$$hasViewXForm -->
<h3 class="fn"><a name="hasViewXForm"></a><span class="type">bool</span> QPainter::<span class="name">hasViewXForm</span> () const</h3>
<p>Use <a href="qpainter.html#viewTransformEnabled">viewTransformEnabled</a>() instead.</p>
<!-- @@@hasViewXForm -->
<!-- $$$hasWorldXForm[overload1]$$$hasWorldXForm -->
<h3 class="fn"><a name="hasWorldXForm"></a><span class="type">bool</span> QPainter::<span class="name">hasWorldXForm</span> () const</h3>
<p>Use <a href="qpainter.html#worldMatrixEnabled">worldMatrixEnabled</a>() instead.</p>
<!-- @@@hasWorldXForm -->
<!-- $$$redirect[overload1]$$$redirectQPaintDevice*QPaintDevice* -->
<h3 class="fn"><a name="redirect"></a><span class="type">void</span> QPainter::<span class="name">redirect</span> ( <span class="type"><a href="qpaintdevice.html">QPaintDevice</a></span> * <i>pdev</i>, <span class="type"><a href="qpaintdevice.html">QPaintDevice</a></span> * <i>replacement</i> )<tt> [static]</tt></h3>
<p>Use <a href="qpainter-obsolete.html#setRedirected" class="obsolete">setRedirected</a>() instead.</p>
<!-- @@@redirect -->
<!-- $$$redirect$$$redirectQPaintDevice* -->
<h3 class="fn"><a name="redirect-2"></a><span class="type"><a href="qpaintdevice.html">QPaintDevice</a></span> * QPainter::<span class="name">redirect</span> ( <span class="type"><a href="qpaintdevice.html">QPaintDevice</a></span> * <i>pdev</i> )<tt> [static]</tt></h3>
<p>Use <a href="qpainter-obsolete.html#redirected" class="obsolete">redirected</a>() instead.</p>
<!-- @@@redirect -->
<!-- $$$resetXForm[overload1]$$$resetXForm -->
<h3 class="fn"><a name="resetXForm"></a><span class="type">void</span> QPainter::<span class="name">resetXForm</span> ()</h3>
<p>Use <a href="qpainter.html#resetTransform">resetTransform</a>() instead.</p>
<!-- @@@resetXForm -->
<!-- $$$setBackgroundColor[overload1]$$$setBackgroundColorconstQColor& -->
<h3 class="fn"><a name="setBackgroundColor"></a><span class="type">void</span> QPainter::<span class="name">setBackgroundColor</span> ( const <span class="type"><a href="qcolor.html">QColor</a></span> &amp; <i>color</i> )</h3>
<p>Use <a href="qpainter.html#setBackground">setBackground</a>() instead.</p>
<p><b>See also </b><a href="qpainter-qt3.html#backgroundColor">backgroundColor</a>().</p>
<!-- @@@setBackgroundColor -->
<!-- $$$setViewXForm[overload1]$$$setViewXFormbool -->
<h3 class="fn"><a name="setViewXForm"></a><span class="type">void</span> QPainter::<span class="name">setViewXForm</span> ( <span class="type">bool</span> <i>enabled</i> )</h3>
<p>Use <a href="qpainter.html#setViewTransformEnabled">setViewTransformEnabled</a>() instead.</p>
<p><b>See also </b><a href="qpainter-qt3.html#hasViewXForm">hasViewXForm</a>().</p>
<!-- @@@setViewXForm -->
<!-- $$$setWorldXForm[overload1]$$$setWorldXFormbool -->
<h3 class="fn"><a name="setWorldXForm"></a><span class="type">void</span> QPainter::<span class="name">setWorldXForm</span> ( <span class="type">bool</span> <i>enabled</i> )</h3>
<p>Use <a href="qpainter.html#setWorldMatrixEnabled">setWorldMatrixEnabled</a>() instead.</p>
<p><b>See also </b><a href="qpainter-qt3.html#hasWorldXForm">hasWorldXForm</a>().</p>
<!-- @@@setWorldXForm -->
<!-- $$$translationX[overload1]$$$translationX -->
<h3 class="fn"><a name="translationX"></a><span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> QPainter::<span class="name">translationX</span> () const</h3>
<p>Use the <a href="qpainter.html#worldTransform">worldTransform</a>() combined with <a href="qtransform.html#dx">QTransform::dx</a>() instead.</p>
<p>For example, if you have code like</p>
<pre class="cpp"> QPainter painter(this);
qreal x = painter.translationX();</pre>
<p>you can rewrite it as</p>
<pre class="cpp"> <span class="type"><a href="qpainter.html">QPainter</a></span> painter(<span class="keyword">this</span>);
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x <span class="operator">=</span> painter<span class="operator">.</span><a href="qpainter.html#worldTransform">worldTransform</a>()<span class="operator">.</span>dx();</pre>
<!-- @@@translationX -->
<!-- $$$translationY[overload1]$$$translationY -->
<h3 class="fn"><a name="translationY"></a><span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> QPainter::<span class="name">translationY</span> () const</h3>
<p>Use the <a href="qpainter.html#worldTransform">worldTransform</a>() combined with <a href="qtransform.html#dy">QTransform::dy</a>() instead.</p>
<p>For example, if you have code like</p>
<pre class="cpp"> QPainter painter(this);
qreal y = painter.translationY();</pre>
<p>you can rewrite it as</p>
<pre class="cpp"> <span class="type"><a href="qpainter.html">QPainter</a></span> painter(<span class="keyword">this</span>);
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y <span class="operator">=</span> painter<span class="operator">.</span><a href="qpainter.html#worldTransform">worldTransform</a>()<span class="operator">.</span>dy();</pre>
<!-- @@@translationY -->
<!-- $$$xForm[overload1]$$$xFormconstQPoint& -->
<h3 class="fn"><a name="xForm"></a><span class="type"><a href="qpoint.html">QPoint</a></span> QPainter::<span class="name">xForm</span> ( const <span class="type"><a href="qpoint.html">QPoint</a></span> &amp; <i>point</i> ) const</h3>
<p>Use <a href="qpainter.html#combinedTransform">combinedTransform</a>() instead.</p>
<!-- @@@xForm -->
<!-- $$$xForm$$$xFormconstQRect& -->
<h3 class="fn"><a name="xForm-2"></a><span class="type"><a href="qrect.html">QRect</a></span> QPainter::<span class="name">xForm</span> ( const <span class="type"><a href="qrect.html">QRect</a></span> &amp; <i>rectangle</i> ) const</h3>
<p>This is an overloaded function.</p>
<p>Use <a href="qpainter.html#combinedTransform">combinedTransform</a>() instead of this function and call mapRect() on the result to obtain a <a href="qrect.html">QRect</a>.</p>
<!-- @@@xForm -->
<!-- $$$xForm$$$xFormconstQPolygon& -->
<h3 class="fn"><a name="xForm-3"></a><span class="type"><a href="qpolygon.html">QPolygon</a></span> QPainter::<span class="name">xForm</span> ( const <span class="type"><a href="qpolygon.html">QPolygon</a></span> &amp; <i>polygon</i> ) const</h3>
<p>This is an overloaded function.</p>
<p>Use <a href="qpainter.html#combinedTransform">combinedTransform</a>() instead.</p>
<!-- @@@xForm -->
<!-- $$$xForm$$$xFormconstQPolygon&intint -->
<h3 class="fn"><a name="xForm-4"></a><span class="type"><a href="qpolygon.html">QPolygon</a></span> QPainter::<span class="name">xForm</span> ( const <span class="type"><a href="qpolygon.html">QPolygon</a></span> &amp; <i>polygon</i>, <span class="type">int</span> <i>index</i>, <span class="type">int</span> <i>count</i> ) const</h3>
<p>This is an overloaded function.</p>
<p>Use <a href="qpainter.html#combinedTransform">combinedTransform</a>() combined with <a href="qvector.html#mid">QPolygon::mid</a>() instead.</p>
<p>For example, if you have code like</p>
<pre class="cpp"> QPainter painter(this);
QPolygon transformed = painter.xForm(polygon, index, count)</pre>
<p>you can rewrite it as</p>
<pre class="cpp"> <span class="type"><a href="qpainter.html">QPainter</a></span> painter(<span class="keyword">this</span>);
<span class="type"><a href="qpolygon.html">QPolygon</a></span> transformed <span class="operator">=</span> polygon<span class="operator">.</span>mid(index<span class="operator">,</span> count) <span class="operator">*</span> painter<span class="operator">.</span><a href="qpainter.html#combinedTransform">combinedTransform</a>();</pre>
<!-- @@@xForm -->
<!-- $$$xFormDev[overload1]$$$xFormDevconstQPoint& -->
<h3 class="fn"><a name="xFormDev"></a><span class="type"><a href="qpoint.html">QPoint</a></span> QPainter::<span class="name">xFormDev</span> ( const <span class="type"><a href="qpoint.html">QPoint</a></span> &amp; <i>point</i> ) const</h3>
<p>This is an overloaded function.</p>
<p>Use <a href="qpainter.html#combinedTransform">combinedTransform</a>() combined with <a href="qtransform.html#inverted">QTransform::inverted</a>() instead.</p>
<p>For example, if you have code like</p>
<pre class="cpp"> QPainter painter(this);
QPoint transformed = painter.xFormDev(point);</pre>
<p>you can rewrite it as</p>
<pre class="cpp"> <span class="type"><a href="qpainter.html">QPainter</a></span> painter(<span class="keyword">this</span>);
<span class="type"><a href="qpoint.html">QPoint</a></span> transformed <span class="operator">=</span> point <span class="operator">*</span> painter<span class="operator">.</span><a href="qpainter.html#combinedTransform">combinedTransform</a>()<span class="operator">.</span>inverted();</pre>
<!-- @@@xFormDev -->
<!-- $$$xFormDev$$$xFormDevconstQRect& -->
<h3 class="fn"><a name="xFormDev-2"></a><span class="type"><a href="qrect.html">QRect</a></span> QPainter::<span class="name">xFormDev</span> ( const <span class="type"><a href="qrect.html">QRect</a></span> &amp; <i>rectangle</i> ) const</h3>
<p>This is an overloaded function.</p>
<p>Use <a href="qpainter.html#combinedTransform">combinedTransform</a>() combined with <a href="qtransform.html#inverted">QTransform::inverted</a>() instead.</p>
<p>For example, if you have code like</p>
<pre class="cpp"> QPainter painter(this);
QRect transformed = painter.xFormDev(rectangle);</pre>
<p>you can rewrite it as</p>
<pre class="cpp"> <span class="type"><a href="qpainter.html">QPainter</a></span> painter(<span class="keyword">this</span>);
<span class="type"><a href="qregion.html">QRegion</a></span> region <span class="operator">=</span> <span class="type"><a href="qregion.html">QRegion</a></span>(rectangle) <span class="operator">*</span> painter<span class="operator">.</span><a href="qpainter.html#combinedTransform">combinedTransform</a>()<span class="operator">.</span>inverted();
<span class="type"><a href="qrect.html">QRect</a></span> transformed <span class="operator">=</span> region<span class="operator">.</span><a href="qpainter.html#boundingRect">boundingRect</a>();</pre>
<!-- @@@xFormDev -->
<!-- $$$xFormDev$$$xFormDevconstQPolygon& -->
<h3 class="fn"><a name="xFormDev-3"></a><span class="type"><a href="qpolygon.html">QPolygon</a></span> QPainter::<span class="name">xFormDev</span> ( const <span class="type"><a href="qpolygon.html">QPolygon</a></span> &amp; <i>polygon</i> ) const</h3>
<p>This is an overloaded function.</p>
<p>Use <a href="qpainter.html#combinedTransform">combinedTransform</a>() combined with <a href="qtransform.html#inverted">QTransform::inverted</a>() instead.</p>
<p>For example, if you have code like</p>
<pre class="cpp"> QPainter painter(this);
QPolygon transformed = painter.xFormDev(rectangle);</pre>
<p>you can rewrite it as</p>
<pre class="cpp"> <span class="type"><a href="qpainter.html">QPainter</a></span> painter(<span class="keyword">this</span>);
<span class="type"><a href="qpolygon.html">QPolygon</a></span> transformed <span class="operator">=</span> polygon <span class="operator">*</span> painter<span class="operator">.</span><a href="qpainter.html#combinedTransform">combinedTransform</a>()<span class="operator">.</span>inverted();</pre>
<!-- @@@xFormDev -->
<!-- $$$xFormDev$$$xFormDevconstQPolygon&intint -->
<h3 class="fn"><a name="xFormDev-4"></a><span class="type"><a href="qpolygon.html">QPolygon</a></span> QPainter::<span class="name">xFormDev</span> ( const <span class="type"><a href="qpolygon.html">QPolygon</a></span> &amp; <i>polygon</i>, <span class="type">int</span> <i>index</i>, <span class="type">int</span> <i>count</i> ) const</h3>
<p>This is an overloaded function.</p>
<p>Use <a href="qpainter.html#combinedTransform">combinedTransform</a>() combined with <a href="qvector.html#mid">QPolygon::mid</a>() and <a href="qtransform.html#inverted">QTransform::inverted</a>() instead.</p>
<p>For example, if you have code like</p>
<pre class="cpp"> QPainter painter(this);
QPolygon transformed = painter.xFormDev(polygon, index, count);</pre>
<p>you can rewrite it as</p>
<pre class="cpp"> <span class="type"><a href="qpainter.html">QPainter</a></span> painter(<span class="keyword">this</span>);
<span class="type"><a href="qpolygon.html">QPolygon</a></span> transformed <span class="operator">=</span> polygon<span class="operator">.</span>mid(index<span class="operator">,</span> count) <span class="operator">*</span> painter<span class="operator">.</span><a href="qpainter.html#combinedTransform">combinedTransform</a>()<span class="operator">.</span>inverted();</pre>
<!-- @@@xFormDev -->
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