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<li class="level1"><a href="#public-functions">Public Functions</a></li>
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<h1 class="title">Q3CanvasEllipse Class Reference</h1>
<!-- $$$Q3CanvasEllipse-brief -->
<p>The Q3CanvasEllipse class provides an ellipse or ellipse segment on a <a href="q3canvas.html">Q3Canvas</a>. <a href="#details">More...</a></p>
<!-- @@@Q3CanvasEllipse -->
<pre class="cpp"> <span class="preprocessor">#include <Q3CanvasEllipse></span></pre><p><b>This class is part of the Qt 3 support library.</b> It is provided to keep old source code working. We strongly advise against using it in new code. See <a href="porting4.html">Porting to Qt 4</a> for more information.</p>
<p><b>Inherits: </b><a href="q3canvaspolygonalitem.html">Q3CanvasPolygonalItem</a>.</p>
<ul>
<li><a href="q3canvasellipse-members.html">List of all members, including inherited members</a></li>
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<a name="public-functions"></a>
<h2>Public Functions</h2>
<table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="q3canvasellipse.html#Q3CanvasEllipse">Q3CanvasEllipse</a></b> ( Q3Canvas * <i>canvas</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="q3canvasellipse.html#Q3CanvasEllipse-2">Q3CanvasEllipse</a></b> ( int <i>width</i>, int <i>height</i>, Q3Canvas * <i>canvas</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="q3canvasellipse.html#Q3CanvasEllipse-3">Q3CanvasEllipse</a></b> ( int <i>width</i>, int <i>height</i>, int <i>startangle</i>, int <i>angle</i>, Q3Canvas * <i>canvas</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="q3canvasellipse.html#dtor.Q3CanvasEllipse">~Q3CanvasEllipse</a></b> ()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> int </td><td class="memItemRight bottomAlign"><b><a href="q3canvasellipse.html#angleLength">angleLength</a></b> () const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> int </td><td class="memItemRight bottomAlign"><b><a href="q3canvasellipse.html#angleStart">angleStart</a></b> () const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> int </td><td class="memItemRight bottomAlign"><b><a href="q3canvasellipse.html#height">height</a></b> () const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="q3canvasellipse.html#setAngles">setAngles</a></b> ( int <i>start</i>, int <i>length</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="q3canvasellipse.html#setSize">setSize</a></b> ( int <i>width</i>, int <i>height</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> int </td><td class="memItemRight bottomAlign"><b><a href="q3canvasellipse.html#width">width</a></b> () const</td></tr>
</table>
<a name="reimplemented-public-functions"></a>
<h2>Reimplemented Public Functions</h2>
<table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> virtual Q3PointArray </td><td class="memItemRight bottomAlign"><b><a href="q3canvasellipse.html#areaPoints">areaPoints</a></b> () const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual bool </td><td class="memItemRight bottomAlign"><b><a href="q3canvasellipse.html#collidesWith">collidesWith</a></b> ( const Q3CanvasItem * <i>i</i> ) const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual int </td><td class="memItemRight bottomAlign"><b><a href="q3canvasellipse.html#rtti">rtti</a></b> () const</td></tr>
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<ul>
<li class="fn">9 public functions inherited from <a href="q3canvaspolygonalitem.html#public-functions">Q3CanvasPolygonalItem</a></li>
<li class="fn">34 public functions inherited from <a href="q3canvasitem.html#public-functions">Q3CanvasItem</a></li>
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<a name="reimplemented-protected-functions"></a>
<h2>Reimplemented Protected Functions</h2>
<table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> virtual void </td><td class="memItemRight bottomAlign"><b><a href="q3canvasellipse.html#drawShape">drawShape</a></b> ( QPainter & <i>p</i> )</td></tr>
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<li class="fn">6 protected functions inherited from <a href="q3canvaspolygonalitem.html#protected-functions">Q3CanvasPolygonalItem</a></li>
<li class="fn">1 protected function inherited from <a href="q3canvasitem.html#protected-functions">Q3CanvasItem</a></li>
</ul>
<a name="details"></a>
<!-- $$$Q3CanvasEllipse-description -->
<div class="descr">
<h2>Detailed Description</h2>
<p>The Q3CanvasEllipse class provides an ellipse or ellipse segment on a <a href="q3canvas.html">Q3Canvas</a>.</p>
<p>A canvas item that paints an ellipse or ellipse segment with a <a href="qbrush.html">QBrush</a>. The ellipse's height, width, start angle and angle length can be set at construction time. The size can be changed at runtime with <a href="q3canvasellipse.html#setSize">setSize</a>(), and the angles can be changed (if you're displaying an ellipse segment rather than a whole ellipse) with <a href="q3canvasellipse.html#setAngles">setAngles</a>().</p>
<p>Note that angles are specified in 16ths of a degree.</p>
<a name="anglediagram"></a><p class="centerAlign"><img src="images/qcanvasellipse.png" alt="Ellipse" /></p><p>If a start angle and length angle are set then an ellipse segment will be drawn. The start angle is the angle that goes from zero in a counter-clockwise direction (shown in green in the diagram). The length angle is the angle from the start angle in a counter-clockwise direction (shown in blue in the diagram). The blue segment is the segment of the ellipse that would be drawn. If no start angle and length angle are specified the entire ellipse is drawn.</p>
<p>The ellipse can be drawn on a painter with <a href="q3canvasellipse.html#drawShape">drawShape</a>().</p>
<p>Like any other canvas item ellipses can be moved with <a href="q3canvasitem.html#move">move</a>() and <a href="q3canvasitem.html#moveBy">moveBy</a>(), or by setting coordinates with <a href="q3canvasitem.html#setX">setX</a>(), <a href="q3canvasitem.html#setY">setY</a>() and <a href="q3canvasitem.html#setZ">setZ</a>().</p>
<p>Note: Q3CanvasEllipse does not use the pen.</p>
</div>
<p><b>See also </b><a href="http://qt.digia.com/product/">QtCanvas</a> and <a href="graphicsview-porting.html">Porting to Graphics View</a>.</p>
<!-- @@@Q3CanvasEllipse -->
<div class="func">
<h2>Member Function Documentation</h2>
<!-- $$$Q3CanvasEllipse[overload1]$$$Q3CanvasEllipseQ3Canvas* -->
<h3 class="fn"><a name="Q3CanvasEllipse"></a>Q3CanvasEllipse::<span class="name">Q3CanvasEllipse</span> ( <span class="type"><a href="q3canvas.html">Q3Canvas</a></span> * <i>canvas</i> )</h3>
<p>Constructs a 32x32 ellipse, centered at (0, 0) on <i>canvas</i>.</p>
<!-- @@@Q3CanvasEllipse -->
<!-- $$$Q3CanvasEllipse$$$Q3CanvasEllipseintintQ3Canvas* -->
<h3 class="fn"><a name="Q3CanvasEllipse-2"></a>Q3CanvasEllipse::<span class="name">Q3CanvasEllipse</span> ( <span class="type">int</span> <i>width</i>, <span class="type">int</span> <i>height</i>, <span class="type"><a href="q3canvas.html">Q3Canvas</a></span> * <i>canvas</i> )</h3>
<p>Constructs a <i>width</i> by <i>height</i> pixel ellipse, centered at (0, 0) on <i>canvas</i>.</p>
<!-- @@@Q3CanvasEllipse -->
<!-- $$$Q3CanvasEllipse$$$Q3CanvasEllipseintintintintQ3Canvas* -->
<h3 class="fn"><a name="Q3CanvasEllipse-3"></a>Q3CanvasEllipse::<span class="name">Q3CanvasEllipse</span> ( <span class="type">int</span> <i>width</i>, <span class="type">int</span> <i>height</i>, <span class="type">int</span> <i>startangle</i>, <span class="type">int</span> <i>angle</i>, <span class="type"><a href="q3canvas.html">Q3Canvas</a></span> * <i>canvas</i> )</h3>
<p>Constructs a <i>width</i> by <i>height</i> pixel ellipse, centered at (0, 0) on <i>canvas</i>. Only a segment of the ellipse is drawn, starting at angle <i>startangle</i>, and extending for angle <i>angle</i> (the angle length).</p>
<p>Note that angles are specified in sixteenths of a degree.</p>
<!-- @@@Q3CanvasEllipse -->
<!-- $$$~Q3CanvasEllipse[overload1]$$$~Q3CanvasEllipse -->
<h3 class="fn"><a name="dtor.Q3CanvasEllipse"></a>Q3CanvasEllipse::<span class="name">~Q3CanvasEllipse</span> ()</h3>
<p>Destroys the ellipse.</p>
<!-- @@@~Q3CanvasEllipse -->
<!-- $$$angleLength[overload1]$$$angleLength -->
<h3 class="fn"><a name="angleLength"></a><span class="type">int</span> Q3CanvasEllipse::<span class="name">angleLength</span> () const</h3>
<p>Returns the length angle (the extent of the ellipse segment) in 16ths of a degree. Initially this will be 360 * 16 (a complete ellipse).</p>
<p><b>See also </b><a href="q3canvasellipse.html#setAngles">setAngles</a>() and <a href="q3canvasellipse.html#angleStart">angleStart</a>().</p>
<!-- @@@angleLength -->
<!-- $$$angleStart[overload1]$$$angleStart -->
<h3 class="fn"><a name="angleStart"></a><span class="type">int</span> Q3CanvasEllipse::<span class="name">angleStart</span> () const</h3>
<p>Returns the start angle in 16ths of a degree. Initially this will be 0.</p>
<p><b>See also </b><a href="q3canvasellipse.html#setAngles">setAngles</a>() and <a href="q3canvasellipse.html#angleLength">angleLength</a>().</p>
<!-- @@@angleStart -->
<!-- $$$areaPoints[overload1]$$$areaPoints -->
<h3 class="fn"><a name="areaPoints"></a><span class="type"><a href="q3pointarray.html">Q3PointArray</a></span> Q3CanvasEllipse::<span class="name">areaPoints</span> () const<tt> [virtual]</tt></h3>
<p>Reimplemented from <a href="q3canvaspolygonalitem.html#areaPoints">Q3CanvasPolygonalItem::areaPoints</a>().</p>
<!-- @@@areaPoints -->
<!-- $$$collidesWith[overload1]$$$collidesWithconstQ3CanvasItem* -->
<h3 class="fn"><a name="collidesWith"></a><span class="type">bool</span> Q3CanvasEllipse::<span class="name">collidesWith</span> ( const <span class="type"><a href="q3canvasitem.html">Q3CanvasItem</a></span> * <i>i</i> ) const<tt> [virtual]</tt></h3>
<p>Reimplemented from <a href="q3canvasitem.html#collidesWith">Q3CanvasItem::collidesWith</a>().</p>
<!-- @@@collidesWith -->
<!-- $$$drawShape[overload1]$$$drawShapeQPainter& -->
<h3 class="fn"><a name="drawShape"></a><span class="type">void</span> Q3CanvasEllipse::<span class="name">drawShape</span> ( <span class="type"><a href="qpainter.html">QPainter</a></span> & <i>p</i> )<tt> [virtual protected]</tt></h3>
<p>Reimplemented from <a href="q3canvaspolygonalitem.html#drawShape">Q3CanvasPolygonalItem::drawShape</a>().</p>
<p>Draws the ellipse, centered at <a href="q3canvasitem.html#x">x</a>(), <a href="q3canvasitem.html#y">y</a>() using the painter <i>p</i>.</p>
<p>Note that <a href="q3canvasellipse.html" class="compat">Q3CanvasEllipse</a> does not support an outline (the pen is always NoPen).</p>
<!-- @@@drawShape -->
<!-- $$$height[overload1]$$$height -->
<h3 class="fn"><a name="height"></a><span class="type">int</span> Q3CanvasEllipse::<span class="name">height</span> () const</h3>
<p>Returns the height of the ellipse.</p>
<!-- @@@height -->
<!-- $$$rtti[overload1]$$$rtti -->
<h3 class="fn"><a name="rtti"></a><span class="type">int</span> Q3CanvasEllipse::<span class="name">rtti</span> () const<tt> [virtual]</tt></h3>
<p>Reimplemented from <a href="q3canvasitem.html#rtti">Q3CanvasItem::rtti</a>().</p>
<p>Returns 6 (<a href="q3canvasitem.html#RttiValues-enum">Q3CanvasItem::Rtti_Ellipse</a>).</p>
<p><b>See also </b><a href="q3canvasitem.html#rtti">Q3CanvasItem::rtti</a>().</p>
<!-- @@@rtti -->
<!-- $$$setAngles[overload1]$$$setAnglesintint -->
<h3 class="fn"><a name="setAngles"></a><span class="type">void</span> Q3CanvasEllipse::<span class="name">setAngles</span> ( <span class="type">int</span> <i>start</i>, <span class="type">int</span> <i>length</i> )</h3>
<p>Sets the angles for the ellipse. The start angle is <i>start</i> and the extent of the segment is <i>length</i> (the angle length) from the <i>start</i>. The angles are specified in 16ths of a degree. By default the ellipse will start at 0 and have an angle length of 360 * 16 (a complete ellipse).</p>
<p><b>See also </b><a href="q3canvasellipse.html#angleStart">angleStart</a>() and <a href="q3canvasellipse.html#angleLength">angleLength</a>().</p>
<!-- @@@setAngles -->
<!-- $$$setSize[overload1]$$$setSizeintint -->
<h3 class="fn"><a name="setSize"></a><span class="type">void</span> Q3CanvasEllipse::<span class="name">setSize</span> ( <span class="type">int</span> <i>width</i>, <span class="type">int</span> <i>height</i> )</h3>
<p>Sets the <i>width</i> and <i>height</i> of the ellipse.</p>
<!-- @@@setSize -->
<!-- $$$width[overload1]$$$width -->
<h3 class="fn"><a name="width"></a><span class="type">int</span> Q3CanvasEllipse::<span class="name">width</span> () const</h3>
<p>Returns the width of the ellipse.</p>
<!-- @@@width -->
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