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<li class="navelem"><a class="el" href="namespaceWt.html">Wt</a> </li>
<li class="navelem"><a class="el" href="classWt_1_1WSvgImage.html">WSvgImage</a> </li>
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<a href="#pub-methods">Public Member Functions</a> |
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<div class="title">Wt::WSvgImage Class Reference<div class="ingroups"><a class="el" href="group__painting.html">Painting system</a></div></div> </div>
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<!-- doxytag: class="Wt::WSvgImage" --><!-- doxytag: inherits="Wt::WResource,Wt::WVectorImage" -->
<p>A paint device for rendering using Scalable Vector Graphics (SVG).
<a href="classWt_1_1WSvgImage.html#details">More...</a></p>
<p><code>#include <Wt/WSvgImage></code></p>
<div class="dynheader">
Inheritance diagram for Wt::WSvgImage:</div>
<div class="dyncontent">
<div class="center"><img src="classWt_1_1WSvgImage__inherit__graph.png" border="0" usemap="#Wt_1_1WSvgImage_inherit__map" alt="Inheritance graph"/></div>
<map name="Wt_1_1WSvgImage_inherit__map" id="Wt_1_1WSvgImage_inherit__map">
<area shape="rect" href="classWt_1_1WResource.html" title="An object which can be rendered in the HTTP protocol." alt="" coords="5,80,120,107"/><area shape="rect" href="classWt_1_1WObject.html" title="A base class for objects that participate in the signal/slot system." alt="" coords="15,5,111,32"/><area shape="rect" href="classWt_1_1WVectorImage.html" title="An abstract paint device for rendering using native vector graphics." alt="" coords="144,80,275,107"/><area shape="rect" href="classWt_1_1WPaintDevice.html" title="The abstract base class for a paint device." alt="" coords="145,5,273,32"/></map>
<center><span class="legend">[<a href="graph_legend.html">legend</a>]</span></center></div>
<p><a href="classWt_1_1WSvgImage-members.html">List of all members.</a></p>
<table class="memberdecls">
<tr><td colspan="2"><h2><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WSvgImage.html#a483d67f1044b129def4a00641d046650">WSvgImage</a> (const <a class="el" href="classWt_1_1WLength.html">WLength</a> &width, const <a class="el" href="classWt_1_1WLength.html">WLength</a> &height, <a class="el" href="classWt_1_1WObject.html">WObject</a> *parent=0, bool paintUpdate=false)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Create an SVG paint device. <a href="#a483d67f1044b129def4a00641d046650"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="adae0510faa27fb9ae5d3e199de3cd5d9"></a><!-- doxytag: member="Wt::WSvgImage::~WSvgImage" ref="adae0510faa27fb9ae5d3e199de3cd5d9" args="()" -->
 </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WSvgImage.html#adae0510faa27fb9ae5d3e199de3cd5d9">~WSvgImage</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Destructor. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a8d0f1b0da9d0cca17b459afe586199aa"></a><!-- doxytag: member="Wt::WSvgImage::features" ref="a8d0f1b0da9d0cca17b459afe586199aa" args="() const " -->
virtual WFlags< <a class="el" href="classWt_1_1WPaintDevice.html#a03b5b2abb109568cc60b2d6ec595ad0b">FeatureFlag</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WSvgImage.html#a8d0f1b0da9d0cca17b459afe586199aa">features</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns device features. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WSvgImage.html#a9716e255c443f13d4845799f2ddadf67">setChanged</a> (WFlags< <a class="el" href="classWt_1_1WPaintDevice.html#a1a2feafa01212eba9ad6c7b484ad8da1">ChangeFlag</a> > flags)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Indicates changes in painter state. <a href="#a9716e255c443f13d4845799f2ddadf67"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WSvgImage.html#afd7b970580c7433fe58ec157d273d824">drawArc</a> (const <a class="el" href="classWt_1_1WRectF.html">WRectF</a> &rect, double startAngle, double spanAngle)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Draws an arc. <a href="#afd7b970580c7433fe58ec157d273d824"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WSvgImage.html#a856da1392335f90675d3d110c90a8e02">drawImage</a> (const <a class="el" href="classWt_1_1WRectF.html">WRectF</a> &rect, const std::string &imgUri, int imgWidth, int imgHeight, const <a class="el" href="classWt_1_1WRectF.html">WRectF</a> &sourceRect)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Draws an image. <a href="#a856da1392335f90675d3d110c90a8e02"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WSvgImage.html#adaeba36845c9772efc195a88a53584a6">drawLine</a> (double x1, double y1, double x2, double y2)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Draws a line. <a href="#adaeba36845c9772efc195a88a53584a6"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WSvgImage.html#a7f76614002d01f2fce87b9fd5097009e">drawPath</a> (const <a class="el" href="classWt_1_1WPainterPath.html">WPainterPath</a> &path)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Draws a path. <a href="#a7f76614002d01f2fce87b9fd5097009e"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WSvgImage.html#a5a650e6997b4bc04e76c48c804b9b1b1">drawText</a> (const <a class="el" href="classWt_1_1WRectF.html">WRectF</a> &rect, WFlags< <a class="el" href="namespaceWt.html#ab8f772c69bc8180c31f9e4f4593b143f">AlignmentFlag</a> > alignmentFlags, <a class="el" href="namespaceWt.html#a3bf85f6b385349dadfa7e205a39ec419">TextFlag</a> textFlag, const <a class="el" href="classWt_1_1WString.html">WString</a> &text)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Draws text. <a href="#a5a650e6997b4bc04e76c48c804b9b1b1"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classWt_1_1WTextItem.html">WTextItem</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WSvgImage.html#a3a3a5bdf8997895db4703213b40bf7ff">measureText</a> (const <a class="el" href="classWt_1_1WString.html">WString</a> &text, double maxWidth=-1, bool wordWrap=false)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Measures rendered text size. <a href="#a3a3a5bdf8997895db4703213b40bf7ff"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classWt_1_1WFontMetrics.html">WFontMetrics</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WSvgImage.html#a10e130d629f8a46f3245aaa89d3d2005">fontMetrics</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns font metrics. <a href="#a10e130d629f8a46f3245aaa89d3d2005"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WSvgImage.html#ad0333d7b9933ced6929d1482f8320fb5">init</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Initializes the device for painting. <a href="#ad0333d7b9933ced6929d1482f8320fb5"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WSvgImage.html#a9dac09bd538e107a2808effbdd42a0c2">done</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Finishes painting on the device. <a href="#a9dac09bd538e107a2808effbdd42a0c2"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WSvgImage.html#aeadc4934d16507d660ad8b95e4ad407a">paintActive</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns whether painting is active. <a href="#aeadc4934d16507d660ad8b95e4ad407a"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a11bb431a8cec09c1e38c710e50407043"></a><!-- doxytag: member="Wt::WSvgImage::rendered" ref="a11bb431a8cec09c1e38c710e50407043" args="()" -->
virtual std::string </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WSvgImage.html#a11bb431a8cec09c1e38c710e50407043">rendered</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Internal method. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classWt_1_1WLength.html">WLength</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WSvgImage.html#aee03b670ef9fb624e4393a9ef55005d3">width</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the device width. <a href="#aee03b670ef9fb624e4393a9ef55005d3"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classWt_1_1WLength.html">WLength</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WSvgImage.html#af8655b3ac955b1e87e64a4db7912a03b">height</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the device height. <a href="#af8655b3ac955b1e87e64a4db7912a03b"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WSvgImage.html#ae79007c08cab7b4c9f24f0e0210c02e1">handleRequest</a> (const <a class="el" href="classWt_1_1Http_1_1Request.html">Http::Request</a> &request, <a class="el" href="classWt_1_1Http_1_1Response.html">Http::Response</a> &response)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Handles a request. <a href="#ae79007c08cab7b4c9f24f0e0210c02e1"></a><br/></td></tr>
<tr><td colspan="2"><h2><a name="pro-methods"></a>
Protected Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classWt_1_1WPainter.html">WPainter</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WSvgImage.html#a674990e3990d86462436b2ac01df6baf">painter</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the painter that is currently painting on the device. <a href="#a674990e3990d86462436b2ac01df6baf"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a1da329a749b8b699ec599cc711a16870"></a><!-- doxytag: member="Wt::WSvgImage::setPainter" ref="a1da329a749b8b699ec599cc711a16870" args="(WPainter *painter)" -->
virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WSvgImage.html#a1da329a749b8b699ec599cc711a16870">setPainter</a> (<a class="el" href="classWt_1_1WPainter.html">WPainter</a> *painter)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sets the painter. <br/></td></tr>
</table>
<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>A paint device for rendering using Scalable Vector Graphics (SVG). </p>
<p>The WSvgImage is primarily used by <a class="el" href="classWt_1_1WPaintedWidget.html" title="A widget that is painted using vector graphics.">WPaintedWidget</a> to render to the browser in Support Vector Graphics (SVG) format.</p>
<p>You may also use the WSvgImage as an independent resource, for example in conjunction with a <a class="el" href="classWt_1_1WAnchor.html" title="A widget that represents an HTML anchor (to link to other documents).">WAnchor</a> or <a class="el" href="classWt_1_1WImage.html" title="A widget that displays an image.">WImage</a>, or to make a hard copy of an image in SVG format, using <a class="el" href="classWt_1_1WResource.html#ad8bbe65a888cc43e0d356f18509b9a0f" title="Stream the resource to a stream.">write()</a>: </p>
<div class="fragment"><pre class="fragment"> <a class="code" href="classWt_1_1Chart_1_1WCartesianChart.html" title="A cartesian chart.">Wt::Chart::WCartesianChart</a> *chart = ...
<a class="code" href="classWt_1_1WSvgImage.html" title="A paint device for rendering using Scalable Vector Graphics (SVG).">Wt::WSvgImage</a> svgImage(800, 400);
<a class="code" href="classWt_1_1WPainter.html" title="Vector graphics painting class.">Wt::WPainter</a> p(&svgImage);
chart-><a class="code" href="classWt_1_1Chart_1_1WCartesianChart.html#a6fb2219936b721b8829dc7093dcb5c16" title="Paint the chart in a rectangle of the given painter.">paint</a>(p);
p.end();
std::ofstream f(<span class="stringliteral">"chart.svg"</span>);
svgImage.write(f);
</pre></div> </div><hr/><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" id="a483d67f1044b129def4a00641d046650"></a><!-- doxytag: member="Wt::WSvgImage::WSvgImage" ref="a483d67f1044b129def4a00641d046650" args="(const WLength &width, const WLength &height, WObject *parent=0, bool paintUpdate=false)" -->
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<td class="memname">Wt::WSvgImage::WSvgImage </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classWt_1_1WLength.html">WLength</a> & </td>
<td class="paramname"><em>width</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="classWt_1_1WLength.html">WLength</a> & </td>
<td class="paramname"><em>height</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype"><a class="el" href="classWt_1_1WObject.html">WObject</a> * </td>
<td class="paramname"><em>parent</em> = <code>0</code>, </td>
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<td class="paramtype">bool </td>
<td class="paramname"><em>paintUpdate</em> = <code>false</code> </td>
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<td>)</td>
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<p>Create an SVG paint device. </p>
<p>If <code>paintUpdate</code> is <code>true</code>, then only an SVG fragment will be rendered that can be used to update the DOM of an existing SVG image, instead of a full SVG image. </p>
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<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="a9dac09bd538e107a2808effbdd42a0c2"></a><!-- doxytag: member="Wt::WSvgImage::done" ref="a9dac09bd538e107a2808effbdd42a0c2" args="()" -->
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<td class="memname">void Wt::WSvgImage::done </td>
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<td><code> [virtual]</code></td>
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<p>Finishes painting on the device. </p>
<p>This method is called when a <a class="el" href="classWt_1_1WPainter.html" title="Vector graphics painting class.">WPainter</a> stopped painting.</p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WPainter.html#a50beb0c8cb77c12e2dee807e4fe4bcb4" title="Ends painting.">WPainter::end()</a> </dd></dl>
<p>Implements <a class="el" href="classWt_1_1WPaintDevice.html#a75827be2076716985533dbc75dfdc512">Wt::WPaintDevice</a>.</p>
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<a class="anchor" id="afd7b970580c7433fe58ec157d273d824"></a><!-- doxytag: member="Wt::WSvgImage::drawArc" ref="afd7b970580c7433fe58ec157d273d824" args="(const WRectF &rect, double startAngle, double spanAngle)" -->
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<td class="memname">void Wt::WSvgImage::drawArc </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classWt_1_1WRectF.html">WRectF</a> & </td>
<td class="paramname"><em>rect</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">double </td>
<td class="paramname"><em>startAngle</em>, </td>
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<td class="paramtype">double </td>
<td class="paramname"><em>spanAngle</em> </td>
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<td>)</td>
<td></td><td><code> [virtual]</code></td>
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<p>Draws an arc. </p>
<p>The arc is defined as in <a class="el" href="classWt_1_1WPainter.html#aa79220ed9456f67a393009e5c5eea27e" title="Draws an arc.">WPainter::drawArc(const WRectF& rectangle, int startAngle, int spanAngle)</a></p>
<p>The arc must be stroked, filled, and transformed using the current painter settings. </p>
<p>Implements <a class="el" href="classWt_1_1WPaintDevice.html#a605316797b1aa4be60c24d95fc5a1ab4">Wt::WPaintDevice</a>.</p>
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<a class="anchor" id="a856da1392335f90675d3d110c90a8e02"></a><!-- doxytag: member="Wt::WSvgImage::drawImage" ref="a856da1392335f90675d3d110c90a8e02" args="(const WRectF &rect, const std::string &imgUri, int imgWidth, int imgHeight, const WRectF &sourceRect)" -->
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<td class="memname">void Wt::WSvgImage::drawImage </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classWt_1_1WRectF.html">WRectF</a> & </td>
<td class="paramname"><em>rect</em>, </td>
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<td class="paramtype">const std::string & </td>
<td class="paramname"><em>imageUri</em>, </td>
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<td class="paramtype">int </td>
<td class="paramname"><em>imgWidth</em>, </td>
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<td class="paramtype">int </td>
<td class="paramname"><em>imgHeight</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="classWt_1_1WRectF.html">WRectF</a> & </td>
<td class="paramname"><em>sourceRect</em> </td>
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<td></td><td><code> [virtual]</code></td>
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<p>Draws an image. </p>
<p>Draws <em>sourceRect</em> from the image with URL <code>imageUri</code> and original dimensions <em>imgWidth</em> and <code>imgHeight</code> to the location, into the rectangle defined by <code>rect</code>.</p>
<p>The image is transformed using the current painter settings. </p>
<p>Implements <a class="el" href="classWt_1_1WPaintDevice.html#af92ff3c6d2f5c351c6931306d9cc1162">Wt::WPaintDevice</a>.</p>
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<a class="anchor" id="adaeba36845c9772efc195a88a53584a6"></a><!-- doxytag: member="Wt::WSvgImage::drawLine" ref="adaeba36845c9772efc195a88a53584a6" args="(double x1, double y1, double x2, double y2)" -->
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<td class="memname">void Wt::WSvgImage::drawLine </td>
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<td class="paramtype">double </td>
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<td class="paramtype">double </td>
<td class="paramname"><em>y1</em>, </td>
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<td class="paramtype">double </td>
<td class="paramname"><em>x2</em>, </td>
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<td class="paramtype">double </td>
<td class="paramname"><em>y2</em> </td>
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<td>)</td>
<td></td><td><code> [virtual]</code></td>
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<p>Draws a line. </p>
<p>The line must be stroked and transformed using the current painter settings. </p>
<p>Implements <a class="el" href="classWt_1_1WPaintDevice.html#abd267ca3adb6c394079042810864ac9a">Wt::WPaintDevice</a>.</p>
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<a class="anchor" id="a7f76614002d01f2fce87b9fd5097009e"></a><!-- doxytag: member="Wt::WSvgImage::drawPath" ref="a7f76614002d01f2fce87b9fd5097009e" args="(const WPainterPath &path)" -->
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<td class="memname">void Wt::WSvgImage::drawPath </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classWt_1_1WPainterPath.html">WPainterPath</a> & </td>
<td class="paramname"><em>path</em></td><td>)</td>
<td><code> [virtual]</code></td>
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<p>Draws a path. </p>
<p>The path must be stroked, filled, and transformed using the current painter settings. </p>
<p>Implements <a class="el" href="classWt_1_1WPaintDevice.html#ab3c368b79fef8bc53681821610dd2077">Wt::WPaintDevice</a>.</p>
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<a class="anchor" id="a5a650e6997b4bc04e76c48c804b9b1b1"></a><!-- doxytag: member="Wt::WSvgImage::drawText" ref="a5a650e6997b4bc04e76c48c804b9b1b1" args="(const WRectF &rect, WFlags< AlignmentFlag > alignmentFlags, TextFlag textFlag, const WString &text)" -->
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<td class="memname">void Wt::WSvgImage::drawText </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classWt_1_1WRectF.html">WRectF</a> & </td>
<td class="paramname"><em>rect</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">WFlags< <a class="el" href="namespaceWt.html#ab8f772c69bc8180c31f9e4f4593b143f">AlignmentFlag</a> > </td>
<td class="paramname"><em>alignmentFlags</em>, </td>
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<td class="paramtype"><a class="el" href="namespaceWt.html#a3bf85f6b385349dadfa7e205a39ec419">TextFlag</a> </td>
<td class="paramname"><em>textFlag</em>, </td>
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<td class="paramtype">const <a class="el" href="classWt_1_1WString.html">WString</a> & </td>
<td class="paramname"><em>text</em> </td>
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<p>Draws text. </p>
<p>The text must be rendered, stroked and transformed using the current painter settings. </p>
<p>Implements <a class="el" href="classWt_1_1WPaintDevice.html#adfcb1566a4c765d0ff1575cc3f6be31d">Wt::WPaintDevice</a>.</p>
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<a class="anchor" id="a10e130d629f8a46f3245aaa89d3d2005"></a><!-- doxytag: member="Wt::WSvgImage::fontMetrics" ref="a10e130d629f8a46f3245aaa89d3d2005" args="()" -->
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<td class="memname"><a class="el" href="classWt_1_1WFontMetrics.html">WFontMetrics</a> Wt::WSvgImage::fontMetrics </td>
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<td><code> [virtual]</code></td>
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<p>Returns font metrics. </p>
<p>This returns font metrics for the current font.</p>
<p>Throws a std::logic_error if the underlying device does not provide font metrics. </p>
<p>Implements <a class="el" href="classWt_1_1WPaintDevice.html#a468ec8684106f8e24b3c46876ee86ff7">Wt::WPaintDevice</a>.</p>
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<a class="anchor" id="ae79007c08cab7b4c9f24f0e0210c02e1"></a><!-- doxytag: member="Wt::WSvgImage::handleRequest" ref="ae79007c08cab7b4c9f24f0e0210c02e1" args="(const Http::Request &request, Http::Response &response)" -->
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<td class="memname">void Wt::WSvgImage::handleRequest </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classWt_1_1Http_1_1Request.html">Http::Request</a> & </td>
<td class="paramname"><em>request</em>, </td>
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<td></td>
<td class="paramtype"><a class="el" href="classWt_1_1Http_1_1Response.html">Http::Response</a> & </td>
<td class="paramname"><em>response</em> </td>
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<td></td>
<td>)</td>
<td></td><td><code> [virtual]</code></td>
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<p>Handles a request. </p>
<p>Reimplement this method so that a proper response is generated for the given request. From the <code>request</code> object you can access request parameters and whether the request is a continuation request. In the <code>response</code> object, you should set the mime type and stream the output data.</p>
<p>A request may also concern a continuation, indicated in <a class="el" href="classWt_1_1Http_1_1Request.html#a2d4f88961a222be846460a8238823ae0" title="Returns a continuation object.">Http::Request::continuation()</a>, in which case the next part for a previously created continuation should be served.</p>
<p>While handling a request, which may happen at any time together with event handling, the library makes sure that the resource is not being concurrently deleted, but multiple requests may happend simultaneously for a single resource. </p>
<p>Implements <a class="el" href="classWt_1_1WResource.html#a3a740f8cc29e2e6e4e58defc9c88b8b6">Wt::WResource</a>.</p>
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<a class="anchor" id="af8655b3ac955b1e87e64a4db7912a03b"></a><!-- doxytag: member="Wt::WSvgImage::height" ref="af8655b3ac955b1e87e64a4db7912a03b" args="() const " -->
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<td class="memname">virtual <a class="el" href="classWt_1_1WLength.html">WLength</a> Wt::WSvgImage::height </td>
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<p>Returns the device height. </p>
<p>The device height, in pixels, establishes the height of the device coordinate system. </p>
<p>Implements <a class="el" href="classWt_1_1WPaintDevice.html#a24c7e1363440e6994b44381ebf443157">Wt::WPaintDevice</a>.</p>
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<a class="anchor" id="ad0333d7b9933ced6929d1482f8320fb5"></a><!-- doxytag: member="Wt::WSvgImage::init" ref="ad0333d7b9933ced6929d1482f8320fb5" args="()" -->
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<td class="memname">void Wt::WSvgImage::init </td>
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<td><code> [virtual]</code></td>
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<p>Initializes the device for painting. </p>
<p>This method is called when a <a class="el" href="classWt_1_1WPainter.html" title="Vector graphics painting class.">WPainter</a> starts painting.</p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WPainter.html#a6b81663b5599f0736ae5099ac7325d44" title="Begins painting on a paint device.">WPainter::begin(WPaintDevice *)</a>, <a class="el" href="classWt_1_1WSvgImage.html#a674990e3990d86462436b2ac01df6baf" title="Returns the painter that is currently painting on the device.">painter()</a> </dd></dl>
<p>Implements <a class="el" href="classWt_1_1WPaintDevice.html#a04d6f9e0653a9785662c1e987b597cc6">Wt::WPaintDevice</a>.</p>
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<a class="anchor" id="a3a3a5bdf8997895db4703213b40bf7ff"></a><!-- doxytag: member="Wt::WSvgImage::measureText" ref="a3a3a5bdf8997895db4703213b40bf7ff" args="(const WString &text, double maxWidth=-1, bool wordWrap=false)" -->
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<td class="memname"><a class="el" href="classWt_1_1WTextItem.html">WTextItem</a> Wt::WSvgImage::measureText </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classWt_1_1WString.html">WString</a> & </td>
<td class="paramname"><em>text</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">double </td>
<td class="paramname"><em>maxWidth</em> = <code>-1</code>, </td>
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<td></td>
<td class="paramtype">bool </td>
<td class="paramname"><em>wordWrap</em> = <code>false</code> </td>
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<td></td>
<td>)</td>
<td></td><td><code> [virtual]</code></td>
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<p>Measures rendered text size. </p>
<p>Returns the bounding rect of the given text when rendered using the current font.</p>
<p>If <code>maxWidth</code> != -1, then the text is truncated to fit in the width.</p>
<p>If <code>wordWrap</code> = <code>true</code> then text is truncated only at word boundaries. Note that in this case the whitespace at the truncated position is included in the text but not accounted for by the returned width (since usually you will not render the whitespace at the end of a line).</p>
<p>Throws a std::logic_error if the underlying device does not provide font metrics. </p>
<p>Implements <a class="el" href="classWt_1_1WPaintDevice.html#a21d005287f1973348357e089d6d18df1">Wt::WPaintDevice</a>.</p>
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<a class="anchor" id="aeadc4934d16507d660ad8b95e4ad407a"></a><!-- doxytag: member="Wt::WSvgImage::paintActive" ref="aeadc4934d16507d660ad8b95e4ad407a" args="() const " -->
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<td class="memname">virtual bool Wt::WSvgImage::paintActive </td>
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<td> const<code> [virtual]</code></td>
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<p>Returns whether painting is active. </p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WSvgImage.html#ad0333d7b9933ced6929d1482f8320fb5" title="Initializes the device for painting.">init()</a>, <a class="el" href="classWt_1_1WSvgImage.html#a674990e3990d86462436b2ac01df6baf" title="Returns the painter that is currently painting on the device.">painter()</a> </dd></dl>
<p>Implements <a class="el" href="classWt_1_1WPaintDevice.html#a7dc74a2c7c98e38c7851277313d313f6">Wt::WPaintDevice</a>.</p>
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<a class="anchor" id="a674990e3990d86462436b2ac01df6baf"></a><!-- doxytag: member="Wt::WSvgImage::painter" ref="a674990e3990d86462436b2ac01df6baf" args="() const " -->
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<td class="memname">virtual <a class="el" href="classWt_1_1WPainter.html">WPainter</a>* Wt::WSvgImage::painter </td>
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<p>Returns the painter that is currently painting on the device. </p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WSvgImage.html#ad0333d7b9933ced6929d1482f8320fb5" title="Initializes the device for painting.">init()</a> </dd></dl>
<p>Implements <a class="el" href="classWt_1_1WPaintDevice.html#ae1c75c6bc0e5a2d6322b176f6f13403c">Wt::WPaintDevice</a>.</p>
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<a class="anchor" id="a9716e255c443f13d4845799f2ddadf67"></a><!-- doxytag: member="Wt::WSvgImage::setChanged" ref="a9716e255c443f13d4845799f2ddadf67" args="(WFlags< ChangeFlag > flags)" -->
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<td class="memname">void Wt::WSvgImage::setChanged </td>
<td>(</td>
<td class="paramtype">WFlags< <a class="el" href="classWt_1_1WPaintDevice.html#a1a2feafa01212eba9ad6c7b484ad8da1">ChangeFlag</a> > </td>
<td class="paramname"><em>flags</em></td><td>)</td>
<td><code> [virtual]</code></td>
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<p>Indicates changes in painter state. </p>
<p>The <code>flags</code> argument is the logical OR of one or more change flags.</p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WPaintDevice.html#a1a2feafa01212eba9ad6c7b484ad8da1" title="Enumeration to communicate painter state changes.">ChangeFlag</a> </dd></dl>
<p>Implements <a class="el" href="classWt_1_1WPaintDevice.html#ab3a4c9799e46ab66c0f6cb4182e9cb72">Wt::WPaintDevice</a>.</p>
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<a class="anchor" id="aee03b670ef9fb624e4393a9ef55005d3"></a><!-- doxytag: member="Wt::WSvgImage::width" ref="aee03b670ef9fb624e4393a9ef55005d3" args="() const " -->
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<td class="memname">virtual <a class="el" href="classWt_1_1WLength.html">WLength</a> Wt::WSvgImage::width </td>
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<p>Returns the device width. </p>
<p>The device width, in pixels, establishes the width of the device coordinate system. </p>
<p>Implements <a class="el" href="classWt_1_1WPaintDevice.html#a9a0d38acb408d4520d0dd520c93d47e0">Wt::WPaintDevice</a>.</p>
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