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<p>The abstract base class for all objects that form <a class="el" href="thelayoutsystem.html">the layout system</a>.  
 <a href="classQCPLayoutElement.html#details">More...</a></p>
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Inheritance diagram for QCPLayoutElement:</div>
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<div class="center"><img src="classQCPLayoutElement__inherit__graph.png" border="0" usemap="#QCPLayoutElement_inherit__map" alt="Inheritance graph"/></div>
<map name="QCPLayoutElement_inherit__map" id="QCPLayoutElement_inherit__map">
<area shape="rect" id="node3" href="classQCPAbstractLegendItem.html" title="The abstract base class for all entries in a QCPLegend. " alt="" coords="6,149,164,173"/><area shape="rect" id="node5" href="classQCPAxisRect.html" title="Holds multiple axes and arranges them in a rectangular shape. " alt="" coords="189,149,280,173"/><area shape="rect" id="node6" href="classQCPColorScale.html" title="A color scale for use with color coding data such as QCPColorMap. " alt="" coords="305,149,412,173"/><area shape="rect" id="node7" href="classQCPLayout.html" title="The abstract base class for layouts. " alt="" coords="436,149,517,173"/><area shape="rect" id="node11" href="classQCPPlotTitle.html" title="A layout element displaying a plot title text. " alt="" coords="543,149,633,173"/><area shape="rect" id="node2" href="classQCPLayerable.html" title="Base class for all drawable objects. " alt="" coords="308,5,409,29"/><area shape="rect" id="node4" href="classQCPPlottableLegendItem.html" title="A legend item representing a plottable with an icon and the plottable name. " alt="" coords="5,221,165,245"/><area shape="rect" id="node8" href="classQCPLayoutGrid.html" title="A layout that arranges child elements in a grid. " alt="" coords="357,221,464,245"/><area shape="rect" id="node10" href="classQCPLayoutInset.html" title="A layout that places child elements aligned to the border or arbitrarily positioned. " alt="" coords="489,221,599,245"/><area shape="rect" id="node9" href="classQCPLegend.html" title="Manages a legend inside a QCustomPlot. " alt="" coords="367,293,453,317"/></map>
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-types"></a>
Public Types</h2></td></tr>
<tr class="memitem:a0d83360e05735735aaf6d7983c56374d"><td class="memItemLeft" align="right" valign="top">enum &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPLayoutElement.html#a0d83360e05735735aaf6d7983c56374d">UpdatePhase</a> </td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Functions</h2></td></tr>
<tr class="memitem:a8947f0ada17e672aaba3d424cbbb67e3"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPLayoutElement.html#a8947f0ada17e672aaba3d424cbbb67e3">QCPLayoutElement</a> (<a class="el" href="classQCustomPlot.html">QCustomPlot</a> *parentPlot=0)</td></tr>
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<tr class="memitem:a6235f5384db871fc6e3387a1bc558b0d"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classQCPLayout.html">QCPLayout</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPLayoutElement.html#a6235f5384db871fc6e3387a1bc558b0d">layout</a> () const </td></tr>
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<tr class="memitem:affdfea003469aac3d0fac5f4e06171bc"><td class="memItemLeft" align="right" valign="top">QRect&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPLayoutElement.html#affdfea003469aac3d0fac5f4e06171bc">rect</a> () const </td></tr>
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QRect&#160;</td><td class="memItemRight" valign="bottom"><b>outerRect</b> () const </td></tr>
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QMargins&#160;</td><td class="memItemRight" valign="bottom"><b>margins</b> () const </td></tr>
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QMargins&#160;</td><td class="memItemRight" valign="bottom"><b>minimumMargins</b> () const </td></tr>
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QCP::MarginSides&#160;</td><td class="memItemRight" valign="bottom"><b>autoMargins</b> () const </td></tr>
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QSize&#160;</td><td class="memItemRight" valign="bottom"><b>minimumSize</b> () const </td></tr>
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QSize&#160;</td><td class="memItemRight" valign="bottom"><b>maximumSize</b> () const </td></tr>
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<a class="el" href="classQCPMarginGroup.html">QCPMarginGroup</a> *&#160;</td><td class="memItemRight" valign="bottom"><b>marginGroup</b> (<a class="el" href="namespaceQCP.html#a7e487e3e2ccb62ab7771065bab7cae54">QCP::MarginSide</a> side) const </td></tr>
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QHash&lt; <a class="el" href="namespaceQCP.html#a7e487e3e2ccb62ab7771065bab7cae54">QCP::MarginSide</a>, <br class="typebreak"/>
<a class="el" href="classQCPMarginGroup.html">QCPMarginGroup</a> * &gt;&#160;</td><td class="memItemRight" valign="bottom"><b>marginGroups</b> () const </td></tr>
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<tr class="memitem:a38975ea13e36de8e53391ce41d94bc0f"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPLayoutElement.html#a38975ea13e36de8e53391ce41d94bc0f">setOuterRect</a> (const QRect &amp;<a class="el" href="classQCPLayoutElement.html#affdfea003469aac3d0fac5f4e06171bc">rect</a>)</td></tr>
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<tr class="memitem:a8f450b1f3f992ad576fce2c63d8b79cf"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPLayoutElement.html#a8f450b1f3f992ad576fce2c63d8b79cf">setMargins</a> (const QMargins &amp;margins)</td></tr>
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<tr class="memitem:a0a8a17abc16b7923159fcc7608f94673"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPLayoutElement.html#a0a8a17abc16b7923159fcc7608f94673">setMinimumMargins</a> (const QMargins &amp;margins)</td></tr>
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<tr class="memitem:accfda49994e3e6d51ed14504abf9d27d"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPLayoutElement.html#accfda49994e3e6d51ed14504abf9d27d">setAutoMargins</a> (QCP::MarginSides sides)</td></tr>
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<tr class="memitem:a5dd29a3c8bc88440c97c06b67be7886b"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPLayoutElement.html#a5dd29a3c8bc88440c97c06b67be7886b">setMinimumSize</a> (const QSize &amp;size)</td></tr>
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<tr class="memitem:a8e0447614a0bf92de9a7304588c6b96e"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPLayoutElement.html#a8e0447614a0bf92de9a7304588c6b96e">setMinimumSize</a> (int width, int height)</td></tr>
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<tr class="memitem:a74eb5280a737ab44833d506db65efd95"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPLayoutElement.html#a74eb5280a737ab44833d506db65efd95">setMaximumSize</a> (const QSize &amp;size)</td></tr>
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<tr class="memitem:a03e0e9c48f230217c529b0819f832d84"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPLayoutElement.html#a03e0e9c48f230217c529b0819f832d84">setMaximumSize</a> (int width, int height)</td></tr>
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<tr class="memitem:a516e56f76b6bc100e8e71d329866847d"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPLayoutElement.html#a516e56f76b6bc100e8e71d329866847d">setMarginGroup</a> (QCP::MarginSides sides, <a class="el" href="classQCPMarginGroup.html">QCPMarginGroup</a> *group)</td></tr>
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<tr class="memitem:a929c2ec62e0e0e1d8418eaa802e2af9b"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPLayoutElement.html#a929c2ec62e0e0e1d8418eaa802e2af9b">update</a> (<a class="el" href="classQCPLayoutElement.html#a0d83360e05735735aaf6d7983c56374d">UpdatePhase</a> phase)</td></tr>
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<tr class="memitem:aebe14fb71f858c0f98caf8d342a9864a"><td class="memItemLeft" align="right" valign="top">virtual QSize&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPLayoutElement.html#aebe14fb71f858c0f98caf8d342a9864a">minimumSizeHint</a> () const </td></tr>
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<tr class="memitem:adbd3a00fec44c977150c6be7329eb801"><td class="memItemLeft" align="right" valign="top">virtual QSize&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPLayoutElement.html#adbd3a00fec44c977150c6be7329eb801">maximumSizeHint</a> () const </td></tr>
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<tr class="memitem:a311d60d78e62ef8eaaedb1b6ceb9e788"><td class="memItemLeft" align="right" valign="top">virtual QList&lt; <a class="el" href="classQCPLayoutElement.html">QCPLayoutElement</a> * &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPLayoutElement.html#a311d60d78e62ef8eaaedb1b6ceb9e788">elements</a> (bool recursive) const </td></tr>
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<tr class="memitem:a9fcf5d0ea19f2c23b2b528bce2c6f095"><td class="memItemLeft" align="right" valign="top">virtual double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPLayoutElement.html#a9fcf5d0ea19f2c23b2b528bce2c6f095">selectTest</a> (const QPointF &amp;pos, bool onlySelectable, QVariant *details=0) const </td></tr>
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<tr class="inherit_header pub_methods_classQCPLayerable"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_classQCPLayerable')"><img src="closed.png" alt="-"/>&#160;Public Functions inherited from <a class="el" href="classQCPLayerable.html">QCPLayerable</a></td></tr>
<tr class="memitem:a74c0fa237f29bf0e49565013fc5d1ec0 inherit pub_methods_classQCPLayerable"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPLayerable.html#a74c0fa237f29bf0e49565013fc5d1ec0">QCPLayerable</a> (<a class="el" href="classQCustomPlot.html">QCustomPlot</a> *plot, QString targetLayer=QString(), <a class="el" href="classQCPLayerable.html">QCPLayerable</a> *<a class="el" href="classQCPLayerable.html#a98d79f5b716d45eac4347befe546d0ec">parentLayerable</a>=0)</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>visible</b> () const </td></tr>
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<a class="el" href="classQCustomPlot.html">QCustomPlot</a> *&#160;</td><td class="memItemRight" valign="bottom"><b>parentPlot</b> () const </td></tr>
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<tr class="memitem:a98d79f5b716d45eac4347befe546d0ec inherit pub_methods_classQCPLayerable"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classQCPLayerable.html">QCPLayerable</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPLayerable.html#a98d79f5b716d45eac4347befe546d0ec">parentLayerable</a> () const </td></tr>
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<a class="el" href="classQCPLayer.html">QCPLayer</a> *&#160;</td><td class="memItemRight" valign="bottom"><b>layer</b> () const </td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>antialiased</b> () const </td></tr>
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<tr class="memitem:a3bed99ddc396b48ce3ebfdc0418744f8 inherit pub_methods_classQCPLayerable"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPLayerable.html#a3bed99ddc396b48ce3ebfdc0418744f8">setVisible</a> (bool on)</td></tr>
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<tr class="memitem:ab0d0da6d2de45a118886d2c8e16d5a54 inherit pub_methods_classQCPLayerable"><td class="memItemLeft" align="right" valign="top">Q_SLOT bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPLayerable.html#ab0d0da6d2de45a118886d2c8e16d5a54">setLayer</a> (<a class="el" href="classQCPLayer.html">QCPLayer</a> *layer)</td></tr>
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<tr class="memitem:a4fd43e89be4a553ead41652565ff0581 inherit pub_methods_classQCPLayerable"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPLayerable.html#a4fd43e89be4a553ead41652565ff0581">setAntialiased</a> (bool enabled)</td></tr>
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Protected Functions</h2></td></tr>
<tr class="memitem:a005c9f0fe84bc1591a2cf2c46fd477b4"><td class="memItemLeft" align="right" valign="top">virtual int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPLayoutElement.html#a005c9f0fe84bc1591a2cf2c46fd477b4">calculateAutoMargin</a> (<a class="el" href="namespaceQCP.html#a7e487e3e2ccb62ab7771065bab7cae54">QCP::MarginSide</a> side)</td></tr>
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<tr class="memitem:a2d82ea21fe0ee628f177bd824bc51a71"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPLayoutElement.html#a2d82ea21fe0ee628f177bd824bc51a71">mousePressEvent</a> (QMouseEvent *event)</td></tr>
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<tr class="memitem:a14f4acf58cdb8dd2c6c571479c4c4a40"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPLayoutElement.html#a14f4acf58cdb8dd2c6c571479c4c4a40">mouseMoveEvent</a> (QMouseEvent *event)</td></tr>
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<tr class="memitem:aa8fef6486cb6ceb7c82cbdd50bc32ee9"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPLayoutElement.html#aa8fef6486cb6ceb7c82cbdd50bc32ee9">mouseDoubleClickEvent</a> (QMouseEvent *event)</td></tr>
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<tr class="memitem:a300521d2fd18a893c1b85f6be11ce2bf"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPLayoutElement.html#a300521d2fd18a893c1b85f6be11ce2bf">wheelEvent</a> (QWheelEvent *event)</td></tr>
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<tr class="memitem:ad6d2b4bb0291c2441b2e1ca3d5296df5"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPLayoutElement.html#ad6d2b4bb0291c2441b2e1ca3d5296df5">applyDefaultAntialiasingHint</a> (<a class="el" href="classQCPPainter.html">QCPPainter</a> *painter) const </td></tr>
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<tr class="memitem:a547bcc1e6e2be5645ca781efe0834653"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPLayoutElement.html#a547bcc1e6e2be5645ca781efe0834653">draw</a> (<a class="el" href="classQCPPainter.html">QCPPainter</a> *painter)</td></tr>
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<tr class="memitem:a1478899e80e8244b411e96ec3b2e5ce2"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPLayoutElement.html#a1478899e80e8244b411e96ec3b2e5ce2">parentPlotInitialized</a> (<a class="el" href="classQCustomPlot.html">QCustomPlot</a> *parentPlot)</td></tr>
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<tr class="memitem:aa4035e586b7f317a06ba7e74e242a5ea inherit pro_methods_classQCPLayerable"><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="namespaceQCP.html#a2ad6bb6281c7c2d593d4277b44c2b037">QCP::Interaction</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPLayerable.html#aa4035e586b7f317a06ba7e74e242a5ea">selectionCategory</a> () const </td></tr>
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<tr class="memitem:a07a8f746640c3704b09910df297afcba inherit pro_methods_classQCPLayerable"><td class="memItemLeft" align="right" valign="top">virtual QRect&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPLayerable.html#a07a8f746640c3704b09910df297afcba">clipRect</a> () const </td></tr>
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<tr class="memitem:a8cbe5a0c9a5674249982f5ca5f8e02bc inherit pro_methods_classQCPLayerable"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPLayerable.html#a8cbe5a0c9a5674249982f5ca5f8e02bc">initializeParentPlot</a> (<a class="el" href="classQCustomPlot.html">QCustomPlot</a> *parentPlot)</td></tr>
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<tr class="memitem:aa23c893671f1f6744ac235cf2204cf3a inherit pro_methods_classQCPLayerable"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPLayerable.html#aa23c893671f1f6744ac235cf2204cf3a">setParentLayerable</a> (<a class="el" href="classQCPLayerable.html">QCPLayerable</a> *<a class="el" href="classQCPLayerable.html#a98d79f5b716d45eac4347befe546d0ec">parentLayerable</a>)</td></tr>
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Additional Inherited Members</h2></td></tr>
<tr class="inherit_header signals_classQCPLayerable"><td colspan="2" onclick="javascript:toggleInherit('signals_classQCPLayerable')"><img src="closed.png" alt="-"/>&#160;Signals inherited from <a class="el" href="classQCPLayerable.html">QCPLayerable</a></td></tr>
<tr class="memitem:abbf8657cedea73ac1c3499b521c90eba inherit signals_classQCPLayerable"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPLayerable.html#abbf8657cedea73ac1c3499b521c90eba">layerChanged</a> (<a class="el" href="classQCPLayer.html">QCPLayer</a> *newLayer)</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>The abstract base class for all objects that form <a class="el" href="thelayoutsystem.html">the layout system</a>. </p>
<p>This is an abstract base class. As such, it can't be instantiated directly, rather use one of its subclasses.</p>
<p>A Layout element is a rectangular object which can be placed in layouts. It has an outer rect (QCPLayoutElement::outerRect) and an inner rect (<a class="el" href="classQCPLayoutElement.html#affdfea003469aac3d0fac5f4e06171bc">QCPLayoutElement::rect</a>). The difference between outer and inner rect is called its margin. The margin can either be set to automatic or manual (<a class="el" href="classQCPLayoutElement.html#accfda49994e3e6d51ed14504abf9d27d">setAutoMargins</a>) on a per-side basis. If a side is set to manual, that margin can be set explicitly with <a class="el" href="classQCPLayoutElement.html#a8f450b1f3f992ad576fce2c63d8b79cf">setMargins</a> and will stay fixed at that value. If it's set to automatic, the layout element subclass will control the value itself (via <a class="el" href="classQCPLayoutElement.html#a005c9f0fe84bc1591a2cf2c46fd477b4">calculateAutoMargin</a>).</p>
<p>Layout elements can be placed in layouts (base class <a class="el" href="classQCPLayout.html" title="The abstract base class for layouts. ">QCPLayout</a>) like <a class="el" href="classQCPLayoutGrid.html" title="A layout that arranges child elements in a grid. ">QCPLayoutGrid</a>. The top level layout is reachable via <a class="el" href="classQCustomPlot.html#afd280d4d621ae64a106543a545c508d7">QCustomPlot::plotLayout</a>, and is a <a class="el" href="classQCPLayoutGrid.html">QCPLayoutGrid</a>. Since <a class="el" href="classQCPLayout.html">QCPLayout</a> itself derives from <a class="el" href="classQCPLayoutElement.html">QCPLayoutElement</a>, layouts can be nested.</p>
<p>Thus in <a class="el" href="classQCustomPlot.html" title="The central class of the library. This is the QWidget which displays the plot and interacts with the ...">QCustomPlot</a> one can divide layout elements into two categories: The ones that are invisible by themselves, because they don't draw anything. Their only purpose is to manage the position and size of other layout elements. This category of layout elements usually use <a class="el" href="classQCPLayout.html" title="The abstract base class for layouts. ">QCPLayout</a> as base class. Then there is the category of layout elements which actually draw something. For example, <a class="el" href="classQCPAxisRect.html" title="Holds multiple axes and arranges them in a rectangular shape. ">QCPAxisRect</a>, <a class="el" href="classQCPLegend.html" title="Manages a legend inside a QCustomPlot. ">QCPLegend</a> and <a class="el" href="classQCPPlotTitle.html" title="A layout element displaying a plot title text. ">QCPPlotTitle</a> are of this category. This does not necessarily mean that the latter category can't have child layout elements. <a class="el" href="classQCPLegend.html" title="Manages a legend inside a QCustomPlot. ">QCPLegend</a> for instance, actually derives from <a class="el" href="classQCPLayoutGrid.html" title="A layout that arranges child elements in a grid. ">QCPLayoutGrid</a> and the individual legend items are child layout elements in the grid layout. </p>
</div><h2 class="groupheader">Member Enumeration Documentation</h2>
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<p>Defines the phases of the update process, that happens just before a replot. At each phase, <a class="el" href="classQCPLayoutElement.html#a929c2ec62e0e0e1d8418eaa802e2af9b">update</a> is called with the according UpdatePhase value. </p>
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<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><em><a class="anchor" id="a0d83360e05735735aaf6d7983c56374dad6119882eba136357c2f627992e527d3"></a>upPreparation</em>&#160;</td><td class="fielddoc">
<p>Phase used for any type of preparation that needs to be done before margin calculation and layout. </p>
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<p>Phase in which the margins are calculated and set. </p>
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<p>Final phase in which the layout system places the rects of the elements. </p>
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<h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
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          <td class="paramtype"><a class="el" href="classQCustomPlot.html">QCustomPlot</a> *&#160;</td>
          <td class="paramname"><em>parentPlot</em> = <code>0</code></td><td>)</td>
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<p>Creates an instance of <a class="el" href="classQCPLayoutElement.html" title="The abstract base class for all objects that form the layout system. ">QCPLayoutElement</a> and sets default values. </p>

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<h2 class="groupheader">Member Function Documentation</h2>
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<p>Returns the parent layout of this layout element. </p>

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<p>Returns the inner rect of this layout element. The inner rect is the outer rect (<a class="el" href="classQCPLayoutElement.html#a38975ea13e36de8e53391ce41d94bc0f">setOuterRect</a>) shrinked by the margins (<a class="el" href="classQCPLayoutElement.html#a8f450b1f3f992ad576fce2c63d8b79cf">setMargins</a>, <a class="el" href="classQCPLayoutElement.html#accfda49994e3e6d51ed14504abf9d27d">setAutoMargins</a>).</p>
<p>In some cases, the area between outer and inner rect is left blank. In other cases the margin area is used to display peripheral graphics while the main content is in the inner rect. This is where automatic margin calculation becomes interesting because it allows the layout element to adapt the margins to the peripheral graphics it wants to draw. For example, <a class="el" href="classQCPAxisRect.html">QCPAxisRect</a> draws the axis labels and tick labels in the margin area, thus needs to adjust the margins (if <a class="el" href="classQCPLayoutElement.html#accfda49994e3e6d51ed14504abf9d27d">setAutoMargins</a> is enabled) according to the space required by the labels of the axes. </p>

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<p>Sets the outer rect of this layout element. If the layout element is inside a layout, the layout sets the position and size of this layout element using this function.</p>
<p>Calling this function externally has no effect, since the layout will overwrite any changes to the outer rect upon the next replot.</p>
<p>The layout element will adapt its inner <a class="el" href="classQCPLayoutElement.html#affdfea003469aac3d0fac5f4e06171bc">rect</a> by applying the margins inward to the outer rect.</p>
<dl class="section see"><dt>See Also</dt><dd><a class="el" href="classQCPLayoutElement.html#affdfea003469aac3d0fac5f4e06171bc">rect</a> </dd></dl>

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<p>Sets the margins of this layout element. If <a class="el" href="classQCPLayoutElement.html#accfda49994e3e6d51ed14504abf9d27d">setAutoMargins</a> is disabled for some or all sides, this function is used to manually set the margin on those sides. Sides that are still set to be handled automatically are ignored and may have any value in <em>margins</em>.</p>
<p>The margin is the distance between the outer rect (controlled by the parent layout via <a class="el" href="classQCPLayoutElement.html#a38975ea13e36de8e53391ce41d94bc0f">setOuterRect</a>) and the inner <a class="el" href="classQCPLayoutElement.html#affdfea003469aac3d0fac5f4e06171bc">rect</a> (which usually contains the main content of this layout element).</p>
<dl class="section see"><dt>See Also</dt><dd><a class="el" href="classQCPLayoutElement.html#accfda49994e3e6d51ed14504abf9d27d">setAutoMargins</a> </dd></dl>

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<p>If <a class="el" href="classQCPLayoutElement.html#accfda49994e3e6d51ed14504abf9d27d">setAutoMargins</a> is enabled on some or all margins, this function is used to provide minimum values for those margins.</p>
<p>The minimum values are not enforced on margin sides that were set to be under manual control via <a class="el" href="classQCPLayoutElement.html#accfda49994e3e6d51ed14504abf9d27d">setAutoMargins</a>.</p>
<dl class="section see"><dt>See Also</dt><dd><a class="el" href="classQCPLayoutElement.html#accfda49994e3e6d51ed14504abf9d27d">setAutoMargins</a> </dd></dl>

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<p>Sets on which sides the margin shall be calculated automatically. If a side is calculated automatically, a minimum margin value may be provided with <a class="el" href="classQCPLayoutElement.html#a0a8a17abc16b7923159fcc7608f94673">setMinimumMargins</a>. If a side is set to be controlled manually, the value may be specified with <a class="el" href="classQCPLayoutElement.html#a8f450b1f3f992ad576fce2c63d8b79cf">setMargins</a>.</p>
<p>Margin sides that are under automatic control may participate in a <a class="el" href="classQCPMarginGroup.html">QCPMarginGroup</a> (see <a class="el" href="classQCPLayoutElement.html#a516e56f76b6bc100e8e71d329866847d">setMarginGroup</a>), to synchronize (align) it with other layout elements in the plot.</p>
<dl class="section see"><dt>See Also</dt><dd><a class="el" href="classQCPLayoutElement.html#a0a8a17abc16b7923159fcc7608f94673">setMinimumMargins</a>, <a class="el" href="classQCPLayoutElement.html#a8f450b1f3f992ad576fce2c63d8b79cf">setMargins</a> </dd></dl>

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<p>Sets the minimum size for the inner <a class="el" href="classQCPLayoutElement.html#affdfea003469aac3d0fac5f4e06171bc">rect</a> of this layout element. A parent layout tries to respect the <em>size</em> here by changing row/column sizes in the layout accordingly.</p>
<p>If the parent layout size is not sufficient to satisfy all minimum size constraints of its child layout elements, the layout may set a size that is actually smaller than <em>size</em>. <a class="el" href="classQCustomPlot.html" title="The central class of the library. This is the QWidget which displays the plot and interacts with the ...">QCustomPlot</a> propagates the layout's size constraints to the outside by setting its own minimum QWidget size accordingly, so violations of <em>size</em> should be exceptions. </p>

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<p>This is an overloaded function.</p>
<p>Sets the minimum size for the inner <a class="el" href="classQCPLayoutElement.html#affdfea003469aac3d0fac5f4e06171bc">rect</a> of this layout element. </p>

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<p>Sets the maximum size for the inner <a class="el" href="classQCPLayoutElement.html#affdfea003469aac3d0fac5f4e06171bc">rect</a> of this layout element. A parent layout tries to respect the <em>size</em> here by changing row/column sizes in the layout accordingly. </p>

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<p>This is an overloaded function.</p>
<p>Sets the maximum size for the inner <a class="el" href="classQCPLayoutElement.html#affdfea003469aac3d0fac5f4e06171bc">rect</a> of this layout element. </p>

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<p>Sets the margin <em>group</em> of the specified margin <em>sides</em>.</p>
<p>Margin groups allow synchronizing specified margins across layout elements, see the documentation of <a class="el" href="classQCPMarginGroup.html">QCPMarginGroup</a>.</p>
<p>To unset the margin group of <em>sides</em>, set <em>group</em> to 0.</p>
<p>Note that margin groups only work for margin sides that are set to automatic (<a class="el" href="classQCPLayoutElement.html#accfda49994e3e6d51ed14504abf9d27d">setAutoMargins</a>). </p>

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<p>Updates the layout element and sub-elements. This function is automatically called before every replot by the parent layout element. It is called multiple times, once for every <a class="el" href="classQCPLayoutElement.html#a0d83360e05735735aaf6d7983c56374d">UpdatePhase</a>. The phases are run through in the order of the enum values. For details about what happens at the different phases, see the documentation of <a class="el" href="classQCPLayoutElement.html#a0d83360e05735735aaf6d7983c56374d">UpdatePhase</a>.</p>
<p>Layout elements that have child elements should call the <a class="el" href="classQCPLayoutElement.html#a929c2ec62e0e0e1d8418eaa802e2af9b">update</a> method of their child elements, and pass the current <em>phase</em> unchanged.</p>
<p>The default implementation executes the automatic margin mechanism in the <a class="el" href="classQCPLayoutElement.html#a0d83360e05735735aaf6d7983c56374da288cb59a92280e47261a341f2813e676">upMargins</a> phase. Subclasses should make sure to call the base class implementation. </p>

<p>Reimplemented in <a class="el" href="classQCPLayout.html#a34ab477e820537ded7bade4399c482fd">QCPLayout</a>, <a class="el" href="classQCPColorScale.html#ab8f6991ac88243fc582b44b183670334">QCPColorScale</a>, and <a class="el" href="classQCPAxisRect.html#a255080a017df9083a60a321ef2ba9ed8">QCPAxisRect</a>.</p>

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<p>Returns the minimum size this layout element (the inner <a class="el" href="classQCPLayoutElement.html#affdfea003469aac3d0fac5f4e06171bc">rect</a>) may be compressed to.</p>
<p>if a minimum size (<a class="el" href="classQCPLayoutElement.html#a5dd29a3c8bc88440c97c06b67be7886b">setMinimumSize</a>) was not set manually, parent layouts consult this function to determine the minimum allowed size of this layout element. (A manual minimum size is considered set if it is non-zero.) </p>

<p>Reimplemented in <a class="el" href="classQCPLayoutGrid.html#a67aae235fb4dd9a479aafe07462ef9ee">QCPLayoutGrid</a>, <a class="el" href="classQCPPlottableLegendItem.html#a76bad654ebc8e870392f488419a6a483">QCPPlottableLegendItem</a>, and <a class="el" href="classQCPPlotTitle.html#a695e6037e72a1e129387e7e4a980faea">QCPPlotTitle</a>.</p>

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<p>Returns the maximum size this layout element (the inner <a class="el" href="classQCPLayoutElement.html#affdfea003469aac3d0fac5f4e06171bc">rect</a>) may be expanded to.</p>
<p>if a maximum size (<a class="el" href="classQCPLayoutElement.html#a74eb5280a737ab44833d506db65efd95">setMaximumSize</a>) was not set manually, parent layouts consult this function to determine the maximum allowed size of this layout element. (A manual maximum size is considered set if it is smaller than Qt's QWIDGETSIZE_MAX.) </p>

<p>Reimplemented in <a class="el" href="classQCPLayoutGrid.html#a1ec4bf5914900a51829a7919f74aa58c">QCPLayoutGrid</a>, and <a class="el" href="classQCPPlotTitle.html#a2afaf11a379038e5ca58040a0eb0ae4c">QCPPlotTitle</a>.</p>

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<p>Returns a list of all child elements in this layout element. If <em>recursive</em> is true, all sub-child elements are included in the list, too.</p>
<dl class="section warning"><dt>Warning</dt><dd>There may be entries with value 0 in the returned list. (For example, <a class="el" href="classQCPLayoutGrid.html" title="A layout that arranges child elements in a grid. ">QCPLayoutGrid</a> may have empty cells which yield 0 at the respective index.) </dd></dl>

<p>Reimplemented in <a class="el" href="classQCPLayoutGrid.html#ae9e24e01552f6667b6d05b12a54a4caa">QCPLayoutGrid</a>, <a class="el" href="classQCPLayout.html#a51fe2675b53e829130b229bc1f7b0f99">QCPLayout</a>, and <a class="el" href="classQCPAxisRect.html#a2bda6bf2b5b5797f92583cecd01c8949">QCPAxisRect</a>.</p>

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<p>Layout elements are sensitive to events inside their outer rect. If <em>pos</em> is within the outer rect, this method returns a value corresponding to 0.99 times the parent plot's selection tolerance. However, layout elements are not selectable by default. So if <em>onlySelectable</em> is true, -1.0 is returned.</p>
<p>See <a class="el" href="classQCPLayerable.html#a4001c4d0dfec55598efa4d531f2179a9">QCPLayerable::selectTest</a> for a general explanation of this virtual method.</p>
<p><a class="el" href="classQCPLayoutElement.html" title="The abstract base class for all objects that form the layout system. ">QCPLayoutElement</a> subclasses may reimplement this method to provide more specific selection test behaviour. </p>

<p>Reimplemented from <a class="el" href="classQCPLayerable.html#a4001c4d0dfec55598efa4d531f2179a9">QCPLayerable</a>.</p>

<p>Reimplemented in <a class="el" href="classQCPLayoutInset.html#ab5a2f2b88c05e369fd7da9583d17aa3a">QCPLayoutInset</a>, <a class="el" href="classQCPLegend.html#aa3892801051bc7b985e003576df844db">QCPLegend</a>, <a class="el" href="classQCPAbstractLegendItem.html#ad0480d5cad34627a294a2921caa4a62f">QCPAbstractLegendItem</a>, and <a class="el" href="classQCPPlotTitle.html#a5b7ae716be9134a48f4e378feb0e6699">QCPPlotTitle</a>.</p>

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          <td>(</td>
          <td class="paramtype"><a class="el" href="namespaceQCP.html#a7e487e3e2ccb62ab7771065bab7cae54">QCP::MarginSide</a>&#160;</td>
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<p>Returns the margin size for this <em>side</em>. It is used if automatic margins is enabled for this <em>side</em> (see <a class="el" href="classQCPLayoutElement.html#accfda49994e3e6d51ed14504abf9d27d">setAutoMargins</a>). If a minimum margin was set with <a class="el" href="classQCPLayoutElement.html#a0a8a17abc16b7923159fcc7608f94673">setMinimumMargins</a>, the returned value will not be smaller than the specified minimum margin.</p>
<p>The default implementation just returns the respective manual margin (<a class="el" href="classQCPLayoutElement.html#a8f450b1f3f992ad576fce2c63d8b79cf">setMargins</a>) or the minimum margin, whichever is larger. </p>

<p>Reimplemented in <a class="el" href="classQCPAxisRect.html#ae79f18302e6507586aa8c032a5f9ed1c">QCPAxisRect</a>.</p>

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<p>This event is called, if the mouse was pressed while being inside the outer rect of this layout element. </p>

<p>Reimplemented in <a class="el" href="classQCPAxisRect.html#a77501dbeccdac7256f7979b05077c04e">QCPAxisRect</a>, and <a class="el" href="classQCPColorScale.html#a5df6ad81b2ad045878d276c2d5be7120">QCPColorScale</a>.</p>

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<p>This event is called, if the mouse is moved inside the outer rect of this layout element. </p>

<p>Reimplemented in <a class="el" href="classQCPAxisRect.html#a4baf3d5dd69166788f6ceda0ea182c6e">QCPAxisRect</a>, and <a class="el" href="classQCPColorScale.html#a3aca469d531ce7b5882de73590aa0de6">QCPColorScale</a>.</p>

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<p>This event is called, if the mouse was previously pressed inside the outer rect of this layout element and is now released. </p>

<p>Reimplemented in <a class="el" href="classQCPAxisRect.html#adf6c99780cea55ab39459a6eaad3a94a">QCPAxisRect</a>, and <a class="el" href="classQCPColorScale.html#a0916613d20901950fc6d00c6f99fe0a1">QCPColorScale</a>.</p>

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          <td class="memname">void QCPLayoutElement::mouseDoubleClickEvent </td>
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<p>This event is called, if the mouse is double-clicked inside the outer rect of this layout element. </p>

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<p>This event is called, if the mouse wheel is scrolled while the cursor is inside the rect of this layout element. </p>

<p>Reimplemented in <a class="el" href="classQCPAxisRect.html#a5acf41fc30aa68ea263246ecfad85c31">QCPAxisRect</a>, and <a class="el" href="classQCPColorScale.html#ab398e14c01240f3dc855884fe9e1ee8c">QCPColorScale</a>.</p>

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          <td class="memname">virtual void QCPLayoutElement::applyDefaultAntialiasingHint </td>
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          <td class="paramtype"><a class="el" href="classQCPPainter.html">QCPPainter</a> *&#160;</td>
          <td class="paramname"><em>painter</em></td><td>)</td>
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<p>This function applies the default antialiasing setting to the specified <em>painter</em>, using the function <a class="el" href="classQCPLayerable.html#a62bd552d1a45aa9accb24b310542279e">applyAntialiasingHint</a>. It is the antialiasing state the painter is put in, when <a class="el" href="classQCPLayoutElement.html#a547bcc1e6e2be5645ca781efe0834653">draw</a> is called on the layerable. If the layerable has multiple entities whose antialiasing setting may be specified individually, this function should set the antialiasing state of the most prominent entity. In this case however, the <a class="el" href="classQCPLayoutElement.html#a547bcc1e6e2be5645ca781efe0834653">draw</a> function usually calls the specialized versions of this function before drawing each entity, effectively overriding the setting of the default antialiasing hint.</p>
<p><b>First example:</b> <a class="el" href="classQCPGraph.html" title="A plottable representing a graph in a plot. ">QCPGraph</a> has multiple entities that have an antialiasing setting: The graph line, fills, scatters and error bars. Those can be configured via <a class="el" href="classQCPLayerable.html#a4fd43e89be4a553ead41652565ff0581">QCPGraph::setAntialiased</a>, <a class="el" href="classQCPAbstractPlottable.html#a089d6b5577120239b55c39ed27c39536">QCPGraph::setAntialiasedFill</a>, <a class="el" href="classQCPAbstractPlottable.html#a2f03f067ede2ed4da6f7d0e4777a3f02">QCPGraph::setAntialiasedScatters</a> etc. Consequently, there isn't only the <a class="el" href="classQCPAbstractPlottable.html#a76e9d6cc7972dc1528f526d163766aca">QCPGraph::applyDefaultAntialiasingHint</a> function (which corresponds to the graph line's antialiasing), but specialized ones like <a class="el" href="classQCPAbstractPlottable.html#ac08a480155895e674dbfe5a5670e0ff3">QCPGraph::applyFillAntialiasingHint</a> and <a class="el" href="classQCPAbstractPlottable.html#a753272ee225a62827e90c3e1e78de4b1">QCPGraph::applyScattersAntialiasingHint</a>. So before drawing one of those entities, <a class="el" href="classQCPGraph.html#a659218cc62c2a7786213d9dd429c1c8d">QCPGraph::draw</a> calls the respective specialized applyAntialiasingHint function.</p>
<p><b>Second example:</b> <a class="el" href="classQCPItemLine.html" title="A line from one point to another. ">QCPItemLine</a> consists only of a line so there is only one antialiasing setting which can be controlled with <a class="el" href="classQCPLayerable.html#a4fd43e89be4a553ead41652565ff0581">QCPItemLine::setAntialiased</a>. (This function is inherited by all layerables. The specialized functions, as seen on <a class="el" href="classQCPGraph.html" title="A plottable representing a graph in a plot. ">QCPGraph</a>, must be added explicitly to the respective layerable subclass.) Consequently it only has the normal <a class="el" href="classQCPAbstractItem.html#a0839031abdd71067e2256a4d53c7a011">QCPItemLine::applyDefaultAntialiasingHint</a>. The <a class="el" href="classQCPItemLine.html#a1fc045dd33919f8006df0692aeb0e84a">QCPItemLine::draw</a> function doesn't need to care about setting any antialiasing states, because the default antialiasing hint is already set on the painter when the <a class="el" href="classQCPLayoutElement.html#a547bcc1e6e2be5645ca781efe0834653">draw</a> function is called, and that's the state it wants to draw the line with. </p>

<p>Implements <a class="el" href="classQCPLayerable.html#afdf83ddc6a265cbf4c89fe99d3d93473">QCPLayerable</a>.</p>

<p>Reimplemented in <a class="el" href="classQCPLegend.html#a26307f532c3458b379663b7d517a5f47">QCPLegend</a>, <a class="el" href="classQCPAxisRect.html#a9a6dd0763701cbc7d01f899bcbb3f9ca">QCPAxisRect</a>, <a class="el" href="classQCPColorScale.html#a23d530c340c15d2fce6583e7120ee8bd">QCPColorScale</a>, <a class="el" href="classQCPAbstractLegendItem.html#a71c3baeda42ba78d2cccd97e74110a5e">QCPAbstractLegendItem</a>, and <a class="el" href="classQCPPlotTitle.html#a0e2a491864bf8d8e8b159ef38e9d85bd">QCPPlotTitle</a>.</p>

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          <td class="memname">virtual void QCPLayoutElement::draw </td>
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          <td class="paramtype"><a class="el" href="classQCPPainter.html">QCPPainter</a> *&#160;</td>
          <td class="paramname"><em>painter</em></td><td>)</td>
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<p>This function draws the layerable with the specified <em>painter</em>. It is only called by <a class="el" href="classQCustomPlot.html" title="The central class of the library. This is the QWidget which displays the plot and interacts with the ...">QCustomPlot</a>, if the layerable is visible (<a class="el" href="classQCPLayerable.html#a3bed99ddc396b48ce3ebfdc0418744f8">setVisible</a>).</p>
<p>Before this function is called, the painter's antialiasing state is set via <a class="el" href="classQCPLayoutElement.html#ad6d2b4bb0291c2441b2e1ca3d5296df5">applyDefaultAntialiasingHint</a>, see the documentation there. Further, the clipping rectangle was set to <a class="el" href="classQCPLayerable.html#a07a8f746640c3704b09910df297afcba">clipRect</a>. </p>

<p>Implements <a class="el" href="classQCPLayerable.html#aecf2f7087482d4b6a78cb2770e5ed12d">QCPLayerable</a>.</p>

<p>Reimplemented in <a class="el" href="classQCPLegend.html#a4462151bf875ca85fa3815457c683fdc">QCPLegend</a>, <a class="el" href="classQCPAxisRect.html#afb1bbbbda8345cd2710d92ee48440b53">QCPAxisRect</a>, <a class="el" href="classQCPPlottableLegendItem.html#a68a781c3de4f9959fdf82075052d43aa">QCPPlottableLegendItem</a>, <a class="el" href="classQCPAbstractLegendItem.html#a97dedc084c672359710f16b31d046d1d">QCPAbstractLegendItem</a>, and <a class="el" href="classQCPPlotTitle.html#ae4f1f8d24489628dabb7256363b097d2">QCPPlotTitle</a>.</p>

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          <td class="memname">void QCPLayoutElement::parentPlotInitialized </td>
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          <td class="paramtype"><a class="el" href="classQCustomPlot.html">QCustomPlot</a> *&#160;</td>
          <td class="paramname"><em>parentPlot</em></td><td>)</td>
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<p>propagates the parent plot initialization to all child elements, by calling <a class="el" href="classQCPLayerable.html#a8cbe5a0c9a5674249982f5ca5f8e02bc">QCPLayerable::initializeParentPlot</a> on them. </p>

<p>Reimplemented from <a class="el" href="classQCPLayerable.html#ab20b7dbd8e0249ed61adb9622c427382">QCPLayerable</a>.</p>

<p>Reimplemented in <a class="el" href="classQCPLegend.html#a4d552c63d82742d77fb7f177bae7b1ba">QCPLegend</a>.</p>

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<hr/>The documentation for this class was generated from the following files:<ul>
<li>src/layout.h</li>
<li>src/layout.cpp</li>
</ul>
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