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<title>Qwt User's Guide: QwtLegendItemManager Class Reference</title>
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<h1>QwtLegendItemManager Class Reference</h1><!-- doxytag: class="QwtLegendItemManager" -->Abstract API to bind plot items to the legend.
<a href="#_details">More...</a>
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<code>#include <<a class="el" href="qwt__legend__itemmanager_8h-source.html">qwt_legend_itemmanager.h</a>></code>
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Inheritance diagram for QwtLegendItemManager:</div>
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<p><center><img src="class_qwt_legend_item_manager__inherit__graph.png" border="0" usemap="#_qwt_legend_item_manager__inherit__map" alt="Inheritance graph"></center>
<map name="_qwt_legend_item_manager__inherit__map">
<area shape="rect" href="class_qwt_plot_item.html" title="Base class for items on the plot canvas." alt="" coords="226,127,322,151"><area shape="rect" href="class_qwt_plot_curve.html" title="A plot item, that represents a series of points." alt="" coords="386,7,490,31"><area shape="rect" href="class_qwt_plot_grid.html" title="A class which draws a coordinate grid." alt="" coords="391,55,484,79"><area shape="rect" href="class_qwt_plot_marker.html" title="A class for drawing markers." alt="" coords="383,103,492,127"><area shape="rect" href="class_qwt_plot_raster_item.html" title="A class, which displays raster data." alt="" coords="371,151,504,175"><area shape="rect" href="class_qwt_plot_scale_item.html" title="A class which draws a scale inside the plot canvas." alt="" coords="374,199,502,223"><area shape="rect" href="class_qwt_plot_svg_item.html" title="A plot item, which displays data in Scalable Vector Graphics (SVG) format." alt="" coords="378,247,498,271"><area shape="rect" href="class_qwt_plot_spectrogram.html" title="A plot item, which displays a spectrogram." alt="" coords="554,151,700,175"></map>
<center><font size="2">[<a href="graph_legend.html">legend</a>]</font></center></div>
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<a href="class_qwt_legend_item_manager-members.html">List of all members.</a><table border="0" cellpadding="0" cellspacing="0">
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<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="class_qwt_legend_item_manager.html#57827c099bdb5691820f749f3e5da710">QwtLegendItemManager</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_legend_item_manager.html#8024d2ec1f7d289161311fa706e7cf61">~QwtLegendItemManager</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_legend_item_manager.html#d3bd052ea242ef8595c7d6008b9cc6f4">updateLegend</a> (<a class="el" href="class_qwt_legend.html">QwtLegend</a> *legend) const =0</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual QWidget * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_legend_item_manager.html#c019b92797940db3cec2246a080598e0">legendItem</a> () const =0</td></tr>
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<hr><a name="_details"></a><h2>Detailed Description</h2>
Abstract API to bind plot items to the legend. <hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="57827c099bdb5691820f749f3e5da710"></a><!-- doxytag: member="QwtLegendItemManager::QwtLegendItemManager" ref="57827c099bdb5691820f749f3e5da710" args="()" -->
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<td class="memname">QwtLegendItemManager::QwtLegendItemManager </td>
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<td><code> [inline]</code></td>
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Constructor.
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<a class="anchor" name="8024d2ec1f7d289161311fa706e7cf61"></a><!-- doxytag: member="QwtLegendItemManager::~QwtLegendItemManager" ref="8024d2ec1f7d289161311fa706e7cf61" args="()" -->
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<td class="memname">virtual QwtLegendItemManager::~QwtLegendItemManager </td>
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<td class="paramname"> </td>
<td> ) </td>
<td><code> [inline, virtual]</code></td>
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Destructor.
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<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="c019b92797940db3cec2246a080598e0"></a><!-- doxytag: member="QwtLegendItemManager::legendItem" ref="c019b92797940db3cec2246a080598e0" args="() const =0" -->
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<td class="memname">virtual QWidget* QwtLegendItemManager::legendItem </td>
<td>(</td>
<td class="paramname"> </td>
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<td> const<code> [pure virtual]</code></td>
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Allocate the widget that represents the item on the legend <dl class="return" compact><dt><b>Returns:</b></dt><dd>Allocated widget </dd></dl>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_legend_item_manager.html#d3bd052ea242ef8595c7d6008b9cc6f4">updateLegend()</a> QwtLegend() </dd></dl>
<p>Implemented in <a class="el" href="class_qwt_plot_item.html#09824eda5e564a853e6586bc387a3b4b">QwtPlotItem</a>.</p>
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<a class="anchor" name="d3bd052ea242ef8595c7d6008b9cc6f4"></a><!-- doxytag: member="QwtLegendItemManager::updateLegend" ref="d3bd052ea242ef8595c7d6008b9cc6f4" args="(QwtLegend *legend) const =0" -->
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<td class="memname">virtual void QwtLegendItemManager::updateLegend </td>
<td>(</td>
<td class="paramtype"><a class="el" href="class_qwt_legend.html">QwtLegend</a> * </td>
<td class="paramname"> <em>legend</em> </td>
<td> ) </td>
<td> const<code> [pure virtual]</code></td>
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Update the widget that represents the item on the legend <dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>legend</em> </td><td>Legend </td></tr>
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</dl>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_legend_item_manager.html#c019b92797940db3cec2246a080598e0">legendItem()</a> </dd></dl>
<p>Implemented in <a class="el" href="class_qwt_plot_curve.html#edbca95048e4c7b42cd0bf486ec36b4d">QwtPlotCurve</a>, and <a class="el" href="class_qwt_plot_item.html#193770cd20609a368c5130de59cb782e">QwtPlotItem</a>.</p>
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