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<title>Wt examples: PaintExample Class Reference</title>
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<div id="projectname">Wt examples
 <span id="projectnumber">3.2.3</span>
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<a href="#pub-methods">Public Member Functions</a> |
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<a href="#pri-attribs">Private Attributes</a> </div>
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<div class="title">PaintExample Class Reference</div> </div>
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<!-- doxytag: class="PaintExample" --><!-- doxytag: inherits="Wt::WContainerWidget" -->
<p><code>#include <<a class="el" href="PaintExample_8h_source.html">PaintExample.h</a>></code></p>
<div class="dynheader">
Inheritance diagram for PaintExample:</div>
<div class="dyncontent">
<div class="center"><img src="classPaintExample__inherit__graph.png" border="0" usemap="#PaintExample_inherit__map" alt="Inheritance graph"/></div>
<map name="PaintExample_inherit__map" id="PaintExample_inherit__map">
<area shape="rect" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WContainerWidget.html" title="Wt::WContainerWidget" alt="" coords="5,304,160,331"/><area shape="rect" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WInteractWidget.html" title="Wt::WInteractWidget" alt="" coords="11,229,155,256"/><area shape="rect" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WWebWidget.html" title="Wt::WWebWidget" alt="" coords="19,155,147,181"/><area shape="rect" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WWidget.html" title="Wt::WWidget" alt="" coords="33,80,132,107"/><area shape="rect" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WObject.html" title="Wt::WObject" alt="" coords="35,5,131,32"/></map>
<center><span class="legend">[<a href="graph_legend.html">legend</a>]</span></center></div>
<p><a href="classPaintExample-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="classPaintExample.html#a0cfbaaa0059b499b578b91e329b4dd15">PaintExample</a> (<a class="elRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WContainerWidget.html">WContainerWidget</a> *root, bool showTitle=true)</td></tr>
<tr><td colspan="2"><h2><a name="pri-methods"></a>
Private Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classPaintExample.html#a09f675b9dc2cd9c4b7272f687135a28a">rotateShape</a> (int v)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classPaintExample.html#aaa524597bf1b0f0eb24a7def16c8c8d9">scaleShape</a> (int v)</td></tr>
<tr><td colspan="2"><h2><a name="pri-attribs"></a>
Private Attributes</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classShapesWidget.html">ShapesWidget</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classPaintExample.html#a4c67f63f963223828f21a283dbfff0e1">shapes_</a></td></tr>
</table>
<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
<div class="textblock">
<p>Definition at line <a class="el" href="PaintExample_8h_source.html#l00017">17</a> of file <a class="el" href="PaintExample_8h_source.html">PaintExample.h</a>.</p>
</div><hr/><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" id="a0cfbaaa0059b499b578b91e329b4dd15"></a><!-- doxytag: member="PaintExample::PaintExample" ref="a0cfbaaa0059b499b578b91e329b4dd15" args="(WContainerWidget *root, bool showTitle=true)" -->
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<td class="memname">PaintExample::PaintExample </td>
<td>(</td>
<td class="paramtype"><a class="elRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WContainerWidget.html">WContainerWidget</a> * </td>
<td class="paramname"><em>root</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">bool </td>
<td class="paramname"><em>showTitle</em> = <code>true</code> </td>
</tr>
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<td>)</td>
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<div class="memdoc">
<p>Definition at line <a class="el" href="PaintExample_8C_source.html#l00017">17</a> of file <a class="el" href="PaintExample_8C_source.html">PaintExample.C</a>.</p>
<div class="fragment"><pre class="fragment"> : <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WContainerWidget.html#a520ba6e52a36a7f2efbef1a31a69e898">WContainerWidget</a>(root)
{
std::string text;
<span class="keywordflow">if</span> (showTitle)
text += <span class="stringliteral">"<h2>Paint example</h2>"</span>;
text +=
<span class="stringliteral">"<p>A simple example demonstrating cross-browser vector graphics."</span>
<span class="stringliteral">"</p>"</span>
<span class="stringliteral">"<p>The emweb logo below is painted using the Wt WPainter API from "</span>
<span class="stringliteral">"bezier paths, and rendered to the browser using inline SVG, inline VML "</span>
<span class="stringliteral">"or the HTML 5 &lt;canvas&gt; element."</span>
<span class="stringliteral">"</p>"</span>
<span class="stringliteral">"<p>"</span>
<span class="stringliteral">"The example also demonstrates the horizontal and vertical "</span>
<span class="stringliteral">"<a href=\"http://www.webtoolkit.eu/wt/doc/reference/html/classWt_1_1WSlider.html\" target=\"_blank\">"</span>
<span class="stringliteral">"WSlider</a> widgets. Here,"</span>
<span class="stringliteral">"the events of the WSlider widgets are used to scale and rotate the "</span>
<span class="stringliteral">"emweb logo."</span>
<span class="stringliteral">"</p>"</span>
<span class="stringliteral">"<p>"</span>
<span class="stringliteral">"In non-IE browsers, a different backend is used for positive or negative "</span>
<span class="stringliteral">"angles (SVG or HTML canvas)."</span>
<span class="stringliteral">"</p>"</span>;
<span class="keyword">new</span> <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WText.html">WText</a>(text, <span class="keyword">this</span>);
<a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WContainerWidget.html">WContainerWidget</a> *emweb = <span class="keyword">new</span> <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WContainerWidget.html#a520ba6e52a36a7f2efbef1a31a69e898">WContainerWidget</a>(<span class="keyword">this</span>);
emweb-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WWebWidget.html#a9795c18e926b26b97fcbabc62a1dd4e3">setMargin</a>(WLength::Auto, Left | Right);
<a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WGridLayout.html">WGridLayout</a> *<a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WContainerWidget.html#afaba82a27836f4a82bab48e8b26ccca2">layout</a> = <span class="keyword">new</span> <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WGridLayout.html">WGridLayout</a>();
emweb-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WContainerWidget.html#a1c84e0ffe330d4798f0ce217f75be08c">setLayout</a>(layout);
<a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WSlider.html">WSlider</a> *scaleSlider = <span class="keyword">new</span> <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WSlider.html">WSlider</a>(Horizontal);
scaleSlider-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WSlider.html#aea0dad399f79f2014dbd3f06d7cdd6d0">setMinimum</a>(0);
scaleSlider-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WSlider.html#ae1fcddb363795d572da2ae68362771e5">setMaximum</a>(20);
scaleSlider-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WSlider.html#afc41362dafd1f53f4d0d52385c04d40c">setValue</a>(10);
scaleSlider-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WSlider.html#a3497303ace2820b3bd457119cec35411">setTickInterval</a>(5);
scaleSlider-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WSlider.html#a58e4a2a02c31b47040d35d646ad2ec0b">setTickPosition</a>(WSlider::TicksBothSides);
scaleSlider-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WSlider.html#ab2c74e01222219a65b799cd78800a114">resize</a>(300, 50);
scaleSlider-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WSlider.html#ac7257988652fc39910b1088cf02ecc5a">sliderMoved</a>().connect(<span class="keyword">this</span>, &<a class="code" href="classPaintExample.html#aaa524597bf1b0f0eb24a7def16c8c8d9">PaintExample::scaleShape</a>);
layout-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WGridLayout.html#a6e64afee237de5665fcd014f407130b2">addWidget</a>(scaleSlider, 0, 1, AlignCenter | AlignMiddle);
<a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WSlider.html">WSlider</a> *rotateSlider = <span class="keyword">new</span> <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WSlider.html">WSlider</a>(Vertical);
rotateSlider-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WSlider.html#aea0dad399f79f2014dbd3f06d7cdd6d0">setMinimum</a>(-30);
rotateSlider-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WSlider.html#ae1fcddb363795d572da2ae68362771e5">setMaximum</a>(30);
rotateSlider-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WSlider.html#afc41362dafd1f53f4d0d52385c04d40c">setValue</a>(0);
rotateSlider-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WSlider.html#a3497303ace2820b3bd457119cec35411">setTickInterval</a>(10);
rotateSlider-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WSlider.html#a58e4a2a02c31b47040d35d646ad2ec0b">setTickPosition</a>(WSlider::TicksBothSides);
rotateSlider-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WSlider.html#ab2c74e01222219a65b799cd78800a114">resize</a>(50, 400);
rotateSlider-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WSlider.html#ac7257988652fc39910b1088cf02ecc5a">sliderMoved</a>().connect(<span class="keyword">this</span>, &<a class="code" href="classPaintExample.html#a09f675b9dc2cd9c4b7272f687135a28a">PaintExample::rotateShape</a>);
layout-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WGridLayout.html#a6e64afee237de5665fcd014f407130b2">addWidget</a>(rotateSlider, 1, 0, AlignCenter | AlignMiddle);
<a class="code" href="classPaintExample.html#a4c67f63f963223828f21a283dbfff0e1">shapes_</a> = <span class="keyword">new</span> <a class="code" href="classShapesWidget.html">ShapesWidget</a>();
<a class="code" href="classPaintExample.html#a4c67f63f963223828f21a283dbfff0e1">shapes_</a>-><a class="code" href="classShapesWidget.html#a4f089bb4237e928bf5a0f485848456a1">setAngle</a>(0.0);
<a class="code" href="classPaintExample.html#a4c67f63f963223828f21a283dbfff0e1">shapes_</a>-><a class="code" href="classShapesWidget.html#af2342542ef4b88d14d2c28be5beece31">setRelativeSize</a>(0.5);
<a class="code" href="classPaintExample.html#a4c67f63f963223828f21a283dbfff0e1">shapes_</a>-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WPaintedWidget.html#a2a3a3be8b9a8c6d56fad4b64b370fdd4">setPreferredMethod</a>(WPaintedWidget::HtmlCanvas);
layout-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WGridLayout.html#a6e64afee237de5665fcd014f407130b2">addWidget</a>(<a class="code" href="classPaintExample.html#a4c67f63f963223828f21a283dbfff0e1">shapes_</a>, 1, 1, AlignCenter | AlignMiddle);
}
</pre></div>
</div>
</div>
<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="a09f675b9dc2cd9c4b7272f687135a28a"></a><!-- doxytag: member="PaintExample::rotateShape" ref="a09f675b9dc2cd9c4b7272f687135a28a" args="(int v)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void PaintExample::rotateShape </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>v</em></td><td>)</td>
<td><code> [private]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Definition at line <a class="el" href="PaintExample_8C_source.html#l00081">81</a> of file <a class="el" href="PaintExample_8C_source.html">PaintExample.C</a>.</p>
<div class="fragment"><pre class="fragment">{
<a class="code" href="classPaintExample.html#a4c67f63f963223828f21a283dbfff0e1">shapes_</a>-><a class="code" href="classShapesWidget.html#a4f089bb4237e928bf5a0f485848456a1">setAngle</a>(v / 2.0);
<span class="comment">// Being silly: test alternate rendering method</span>
<a class="code" href="classPaintExample.html#a4c67f63f963223828f21a283dbfff0e1">shapes_</a>-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WPaintedWidget.html#a2a3a3be8b9a8c6d56fad4b64b370fdd4">setPreferredMethod</a>(v < 0 ? WPaintedWidget::InlineSvgVml
: WPaintedWidget::HtmlCanvas);
}
</pre></div>
</div>
</div>
<a class="anchor" id="aaa524597bf1b0f0eb24a7def16c8c8d9"></a><!-- doxytag: member="PaintExample::scaleShape" ref="aaa524597bf1b0f0eb24a7def16c8c8d9" args="(int v)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void PaintExample::scaleShape </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>v</em></td><td>)</td>
<td><code> [private]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Definition at line <a class="el" href="PaintExample_8C_source.html#l00090">90</a> of file <a class="el" href="PaintExample_8C_source.html">PaintExample.C</a>.</p>
<div class="fragment"><pre class="fragment">{
<a class="code" href="classPaintExample.html#a4c67f63f963223828f21a283dbfff0e1">shapes_</a>-><a class="code" href="classShapesWidget.html#af2342542ef4b88d14d2c28be5beece31">setRelativeSize</a>(0.1 + 0.9 * (v/20.0));
}
</pre></div>
</div>
</div>
<hr/><h2>Member Data Documentation</h2>
<a class="anchor" id="a4c67f63f963223828f21a283dbfff0e1"></a><!-- doxytag: member="PaintExample::shapes_" ref="a4c67f63f963223828f21a283dbfff0e1" args="" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="classShapesWidget.html">ShapesWidget</a>* <a class="el" href="classPaintExample.html#a4c67f63f963223828f21a283dbfff0e1">PaintExample::shapes_</a><code> [private]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Definition at line <a class="el" href="PaintExample_8h_source.html#l00023">23</a> of file <a class="el" href="PaintExample_8h_source.html">PaintExample.h</a>.</p>
</div>
</div>
<hr/>The documentation for this class was generated from the following files:<ul>
<li>/home/koen/project/wt/public-git/wt/examples/painting/<a class="el" href="PaintExample_8h_source.html">PaintExample.h</a></li>
<li>/home/koen/project/wt/public-git/wt/examples/painting/<a class="el" href="PaintExample_8C_source.html">PaintExample.C</a></li>
</ul>
</div>
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