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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<h1>Wt::WLength Class Reference</h1><!-- doxytag: class="Wt::WLength" -->A class that specifies a CSS length.
<a href="#_details">More...</a>
<p>
<code>#include <Wt/WLength></code>
<p>
<p>
<a href="classWt_1_1WLength-members.html">List of all members.</a><table border="0" cellpadding="0" cellspacing="0">
<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Public Types</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">enum </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WLength.html#908caf5d6be7e244e24598e6d22cd4c0">Unit</a> { <br>
<a class="el" href="classWt_1_1WLength.html#908caf5d6be7e244e24598e6d22cd4c03c8be5b087b150df97498adf7a69342f">FontEm</a>,
<a class="el" href="classWt_1_1WLength.html#908caf5d6be7e244e24598e6d22cd4c0dcb9f05790b02548f1185fbceac6bd81">FontEx</a>,
<a class="el" href="classWt_1_1WLength.html#908caf5d6be7e244e24598e6d22cd4c00b1fa4c1bd7adb92e1a04d62b96d30ba">Pixel</a>,
<a class="el" href="classWt_1_1WLength.html#908caf5d6be7e244e24598e6d22cd4c07e715eece268ff7455eb7f80e049c839">Inch</a>,
<br>
<a class="el" href="classWt_1_1WLength.html#908caf5d6be7e244e24598e6d22cd4c092c81cba9e5ac72dd65295572da618c3">Centimeter</a>,
<a class="el" href="classWt_1_1WLength.html#908caf5d6be7e244e24598e6d22cd4c0160938d7f938d245ee31f5e34be0f6a2">Millimeter</a>,
<a class="el" href="classWt_1_1WLength.html#908caf5d6be7e244e24598e6d22cd4c0af7ad2af268eb2197f6ebd323a8a3ac4">Point</a>,
<a class="el" href="classWt_1_1WLength.html#908caf5d6be7e244e24598e6d22cd4c0ffd121933f44c8231c523747efa64a06">Pica</a>,
<br>
<a class="el" href="classWt_1_1WLength.html#908caf5d6be7e244e24598e6d22cd4c0304d9ef07db638690997830a7b348db1">Percentage</a>
<br>
}</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">The unit. <a href="classWt_1_1WLength.html#908caf5d6be7e244e24598e6d22cd4c0">More...</a><br></td></tr>
<tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WLength.html#d2a8e7901084735819bc1b29fdb9a930">WLength</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Creates an 'auto' length. <a href="#d2a8e7901084735819bc1b29fdb9a930"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WLength.html#1c06a75adecaa2dc0097e82f61a20e9a">WLength</a> (double value, <a class="el" href="classWt_1_1WLength.html#908caf5d6be7e244e24598e6d22cd4c0">Unit</a> unit=Pixel)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Creates a length with value and unit. <a href="#1c06a75adecaa2dc0097e82f61a20e9a"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WLength.html#b4c9733029342fdbc1dee34a523ee40d">isAuto</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns whether the ength is 'auto'. <a href="#b4c9733029342fdbc1dee34a523ee40d"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WLength.html#c4063de548d24148fda45a7bced29ef8">value</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the value. <a href="#c4063de548d24148fda45a7bced29ef8"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="classWt_1_1WLength.html#908caf5d6be7e244e24598e6d22cd4c0">Unit</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WLength.html#37b71e44633dd09a63b8a1ebb06e9a27">unit</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the unit. <a href="#37b71e44633dd09a63b8a1ebb06e9a27"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="0a25adc9027a39ead32e06a201ffc00f"></a><!-- doxytag: member="Wt::WLength::cssText" ref="0a25adc9027a39ead32e06a201ffc00f" args="() const " -->
const std::string </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WLength.html#0a25adc9027a39ead32e06a201ffc00f">cssText</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the CSS text. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="45e8d143f73d728cac9c68b537edd2b4"></a><!-- doxytag: member="Wt::WLength::operator==" ref="45e8d143f73d728cac9c68b537edd2b4" args="(const WLength &other) const " -->
bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WLength.html#45e8d143f73d728cac9c68b537edd2b4">operator==</a> (const <a class="el" href="classWt_1_1WLength.html">WLength</a> &other) const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Comparison operator. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="42fb15b07a6ba7ab12c688f2f05209bc"></a><!-- doxytag: member="Wt::WLength::operator!=" ref="42fb15b07a6ba7ab12c688f2f05209bc" args="(const WLength &other) const " -->
bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WLength.html#42fb15b07a6ba7ab12c688f2f05209bc">operator!=</a> (const <a class="el" href="classWt_1_1WLength.html">WLength</a> &other) const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Comparison operator. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WLength.html#3f4a8633434fd5190a60dd693f4a2021">toPixels</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the (approximate) length in pixels. <a href="#3f4a8633434fd5190a60dd693f4a2021"></a><br></td></tr>
<tr><td colspan="2"><br><h2>Static Public Attributes</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static <a class="el" href="classWt_1_1WLength.html">WLength</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WLength.html#0cf39ca4225776879d56ade60320c31a">Auto</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">An 'auto' length. <a href="#0cf39ca4225776879d56ade60320c31a"></a><br></td></tr>
</table>
<hr><a name="_details"></a><h2>Detailed Description</h2>
A class that specifies a CSS length.
<p>
The class combines a value with a unit. There is a special value <em>auto</em> which has a different meaning depending on the context. <hr><h2>Member Enumeration Documentation</h2>
<a class="anchor" name="908caf5d6be7e244e24598e6d22cd4c0"></a><!-- doxytag: member="Wt::WLength::Unit" ref="908caf5d6be7e244e24598e6d22cd4c0" args="" -->
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<td class="memname">enum <a class="el" href="classWt_1_1WLength.html#908caf5d6be7e244e24598e6d22cd4c0">Wt::WLength::Unit</a> </td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
The unit.
<p>
<dl compact><dt><b>Enumerator: </b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"><em><a class="anchor" name="908caf5d6be7e244e24598e6d22cd4c03c8be5b087b150df97498adf7a69342f"></a><!-- doxytag: member="FontEm" ref="908caf5d6be7e244e24598e6d22cd4c03c8be5b087b150df97498adf7a69342f" args="" -->FontEm</em> </td><td>
The relative font size. </td></tr>
<tr><td valign="top"><em><a class="anchor" name="908caf5d6be7e244e24598e6d22cd4c0dcb9f05790b02548f1185fbceac6bd81"></a><!-- doxytag: member="FontEx" ref="908caf5d6be7e244e24598e6d22cd4c0dcb9f05790b02548f1185fbceac6bd81" args="" -->FontEx</em> </td><td>
The height of an 'x' in the font. </td></tr>
<tr><td valign="top"><em><a class="anchor" name="908caf5d6be7e244e24598e6d22cd4c00b1fa4c1bd7adb92e1a04d62b96d30ba"></a><!-- doxytag: member="Pixel" ref="908caf5d6be7e244e24598e6d22cd4c00b1fa4c1bd7adb92e1a04d62b96d30ba" args="" -->Pixel</em> </td><td>
Pixel, relative to canvas resolution. </td></tr>
<tr><td valign="top"><em><a class="anchor" name="908caf5d6be7e244e24598e6d22cd4c07e715eece268ff7455eb7f80e049c839"></a><!-- doxytag: member="Inch" ref="908caf5d6be7e244e24598e6d22cd4c07e715eece268ff7455eb7f80e049c839" args="" -->Inch</em> </td><td>
Inche. </td></tr>
<tr><td valign="top"><em><a class="anchor" name="908caf5d6be7e244e24598e6d22cd4c092c81cba9e5ac72dd65295572da618c3"></a><!-- doxytag: member="Centimeter" ref="908caf5d6be7e244e24598e6d22cd4c092c81cba9e5ac72dd65295572da618c3" args="" -->Centimeter</em> </td><td>
Centimeter. </td></tr>
<tr><td valign="top"><em><a class="anchor" name="908caf5d6be7e244e24598e6d22cd4c0160938d7f938d245ee31f5e34be0f6a2"></a><!-- doxytag: member="Millimeter" ref="908caf5d6be7e244e24598e6d22cd4c0160938d7f938d245ee31f5e34be0f6a2" args="" -->Millimeter</em> </td><td>
Millimeter. </td></tr>
<tr><td valign="top"><em><a class="anchor" name="908caf5d6be7e244e24598e6d22cd4c0af7ad2af268eb2197f6ebd323a8a3ac4"></a><!-- doxytag: member="Point" ref="908caf5d6be7e244e24598e6d22cd4c0af7ad2af268eb2197f6ebd323a8a3ac4" args="" -->Point</em> </td><td>
Point (1/72 Inch). </td></tr>
<tr><td valign="top"><em><a class="anchor" name="908caf5d6be7e244e24598e6d22cd4c0ffd121933f44c8231c523747efa64a06"></a><!-- doxytag: member="Pica" ref="908caf5d6be7e244e24598e6d22cd4c0ffd121933f44c8231c523747efa64a06" args="" -->Pica</em> </td><td>
Pica (12 Point). </td></tr>
<tr><td valign="top"><em><a class="anchor" name="908caf5d6be7e244e24598e6d22cd4c0304d9ef07db638690997830a7b348db1"></a><!-- doxytag: member="Percentage" ref="908caf5d6be7e244e24598e6d22cd4c0304d9ef07db638690997830a7b348db1" args="" -->Percentage</em> </td><td>
Percentage (meaning context-sensitive). </td></tr>
</table>
</dl>
</div>
</div><p>
<hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="d2a8e7901084735819bc1b29fdb9a930"></a><!-- doxytag: member="Wt::WLength::WLength" ref="d2a8e7901084735819bc1b29fdb9a930" args="()" -->
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<td class="memname">Wt::WLength::WLength </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td></td>
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</table>
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<div class="memdoc">
<p>
Creates an 'auto' length.
<p>
Specifies an 'auto' length.<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WLength.html#0cf39ca4225776879d56ade60320c31a" title="An 'auto' length.">Auto</a> </dd></dl>
</div>
</div><p>
<a class="anchor" name="1c06a75adecaa2dc0097e82f61a20e9a"></a><!-- doxytag: member="Wt::WLength::WLength" ref="1c06a75adecaa2dc0097e82f61a20e9a" args="(double value, Unit unit=Pixel)" -->
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<td class="memname">Wt::WLength::WLength </td>
<td>(</td>
<td class="paramtype">double </td>
<td class="paramname"> <em>value</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classWt_1_1WLength.html#908caf5d6be7e244e24598e6d22cd4c0">Unit</a> </td>
<td class="paramname"> <em>unit</em> = <code>Pixel</code></td><td> </td>
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<td></td>
<td>)</td>
<td></td><td></td><td></td>
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<div class="memdoc">
<p>
Creates a length with value and unit.
<p>
This constructor will also provide the implicit conversion between a double and <a class="el" href="classWt_1_1WLength.html" title="A class that specifies a CSS length.">WLength</a>, using a pixel unit.
</div>
</div><p>
<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="b4c9733029342fdbc1dee34a523ee40d"></a><!-- doxytag: member="Wt::WLength::isAuto" ref="b4c9733029342fdbc1dee34a523ee40d" args="() const " -->
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<td class="memname">bool Wt::WLength::isAuto </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td> const<code> [inline]</code></td>
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<div class="memdoc">
<p>
Returns whether the ength is 'auto'.
<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WLength.html#d2a8e7901084735819bc1b29fdb9a930" title="Creates an 'auto' length.">WLength()</a>, <a class="el" href="classWt_1_1WLength.html#0cf39ca4225776879d56ade60320c31a" title="An 'auto' length.">Auto</a> </dd></dl>
</div>
</div><p>
<a class="anchor" name="c4063de548d24148fda45a7bced29ef8"></a><!-- doxytag: member="Wt::WLength::value" ref="c4063de548d24148fda45a7bced29ef8" args="() const " -->
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<td class="memname">double Wt::WLength::value </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td> const<code> [inline]</code></td>
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<p>
Returns the value.
<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WLength.html#37b71e44633dd09a63b8a1ebb06e9a27" title="Returns the unit.">unit()</a> </dd></dl>
</div>
</div><p>
<a class="anchor" name="37b71e44633dd09a63b8a1ebb06e9a27"></a><!-- doxytag: member="Wt::WLength::unit" ref="37b71e44633dd09a63b8a1ebb06e9a27" args="() const " -->
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<td class="memname"><a class="el" href="classWt_1_1WLength.html#908caf5d6be7e244e24598e6d22cd4c0">Unit</a> Wt::WLength::unit </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td> const<code> [inline]</code></td>
</tr>
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<p>
Returns the unit.
<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WLength.html#c4063de548d24148fda45a7bced29ef8" title="Returns the value.">value()</a> </dd></dl>
</div>
</div><p>
<a class="anchor" name="3f4a8633434fd5190a60dd693f4a2021"></a><!-- doxytag: member="Wt::WLength::toPixels" ref="3f4a8633434fd5190a60dd693f4a2021" args="() const " -->
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<td class="memname">double Wt::WLength::toPixels </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td> const</td>
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<div class="memdoc">
<p>
Returns the (approximate) length in pixels.
<p>
When the length <a class="el" href="classWt_1_1WLength.html#b4c9733029342fdbc1dee34a523ee40d" title="Returns whether the ength is 'auto'.">isAuto()</a>, 0 is returned, otherwise the approximate length in pixels.
</div>
</div><p>
<hr><h2>Member Data Documentation</h2>
<a class="anchor" name="0cf39ca4225776879d56ade60320c31a"></a><!-- doxytag: member="Wt::WLength::Auto" ref="0cf39ca4225776879d56ade60320c31a" args="" -->
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<td class="memname"><a class="el" href="classWt_1_1WLength.html">WLength</a> <a class="el" href="classWt_1_1WLength.html#0cf39ca4225776879d56ade60320c31a">Wt::WLength::Auto</a><code> [static]</code> </td>
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<div class="memdoc">
<p>
An 'auto' length.
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<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WLength.html#d2a8e7901084735819bc1b29fdb9a930" title="Creates an 'auto' length.">WLength()</a> </dd></dl>
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