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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<h1>Wt::WBoxLayout Class Reference</h1><!-- doxytag: class="Wt::WBoxLayout" --><!-- doxytag: inherits="Wt::WLayout" -->A layout manager which arranges widgets horizontally or vertically.
<a href="#_details">More...</a>
<p>
<code>#include <Wt/WBoxLayout></code>
<p>
<div class="dynheader">
Inheritance diagram for Wt::WBoxLayout:</div>
<div class="dynsection">
<p><center><img src="classWt_1_1WBoxLayout__inherit__graph.png" border="0" usemap="#Wt_1_1WBoxLayout__inherit__map" alt="Inheritance graph"></center>
<map name="Wt_1_1WBoxLayout__inherit__map">
<area shape="rect" href="classWt_1_1WHBoxLayout.html" title="A layout manager which arranges widgets horizontally." alt="" coords="5,229,133,256"><area shape="rect" href="classWt_1_1WVBoxLayout.html" title="A layout manager which arranges widgets vertically." alt="" coords="157,229,285,256"><area shape="rect" href="classWt_1_1WLayout.html" title="An abstract base class for layout managers." alt="" coords="97,80,193,107"><area shape="rect" href="classWt_1_1WLayoutItem.html" title="An abstract base class for items that can participate in a layout." alt="" coords="17,5,140,32"><area shape="rect" href="classWt_1_1WObject.html" title="A base class for objects that participate in the signal/slot system." alt="" coords="164,5,260,32"></map>
<center><font size="2">[<a href="graph_legend.html">legend</a>]</font></center></div>
<p>
<a href="classWt_1_1WBoxLayout-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_1WBoxLayout.html#ddc4cd1f8b1158dcf16eb10d429803ec">Direction</a> { <a class="el" href="classWt_1_1WBoxLayout.html#ddc4cd1f8b1158dcf16eb10d429803ec174fcc4fd0b807e60c838385be19e1f9">LeftToRight</a>,
<a class="el" href="classWt_1_1WBoxLayout.html#ddc4cd1f8b1158dcf16eb10d429803eca4a4afece8c59ddaf384c08b276aa70f">RightToLeft</a>,
<a class="el" href="classWt_1_1WBoxLayout.html#ddc4cd1f8b1158dcf16eb10d429803ecf705eddcc1a4639aeb1908f1c7acface">TopToBottom</a>,
<a class="el" href="classWt_1_1WBoxLayout.html#ddc4cd1f8b1158dcf16eb10d429803ecf25be1e7bbefae032ceb333e67bda5f2">BottomToTop</a>
}</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Enumeration of the direction in which widgets are layed out. <a href="classWt_1_1WBoxLayout.html#ddc4cd1f8b1158dcf16eb10d429803ec">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_1WBoxLayout.html#9472dd446911a6a6d33b019a34a0c4fc">WBoxLayout</a> (<a class="el" href="classWt_1_1WBoxLayout.html#ddc4cd1f8b1158dcf16eb10d429803ec">Direction</a> dir, <a class="el" href="classWt_1_1WWidget.html">WWidget</a> *parent=0)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Creates a new box layout. <a href="#9472dd446911a6a6d33b019a34a0c4fc"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WBoxLayout.html#2932a804ac01e0b314408bf4d366385d">addItem</a> (<a class="el" href="classWt_1_1WLayoutItem.html">WLayoutItem</a> *item)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Adds a layout <em>item</em>. <a href="#2932a804ac01e0b314408bf4d366385d"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WBoxLayout.html#a01f05c0f40fa89e418b802f78f2870c">removeItem</a> (<a class="el" href="classWt_1_1WLayoutItem.html">WLayoutItem</a> *item)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Removes a layout <em>item</em> (widget or nested layout). <a href="#a01f05c0f40fa89e418b802f78f2870c"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual <a class="el" href="classWt_1_1WLayoutItem.html">WLayoutItem</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WBoxLayout.html#ad2ec4be48cb11a7802b3e6d7cb8f0fd">itemAt</a> (int index) const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the layout item at a specific <em>index</em>. <a href="#ad2ec4be48cb11a7802b3e6d7cb8f0fd"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WBoxLayout.html#961fe311fd07adbf7b60b571ef7a8278">count</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the number of items in this layout. <a href="#961fe311fd07adbf7b60b571ef7a8278"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WBoxLayout.html#f669ef9fbcdb8954d1cfa7bb9e47b90f">setDirection</a> (<a class="el" href="classWt_1_1WBoxLayout.html#ddc4cd1f8b1158dcf16eb10d429803ec">Direction</a> direction)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sets the layout direction. <a href="#f669ef9fbcdb8954d1cfa7bb9e47b90f"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="classWt_1_1WBoxLayout.html#ddc4cd1f8b1158dcf16eb10d429803ec">Direction</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WBoxLayout.html#a101f33971e037bed0e4bfea164cf0dc">direction</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the layout direction. <a href="#a101f33971e037bed0e4bfea164cf0dc"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WBoxLayout.html#34d544a1a2bd8beffa6b8e5e84fbc19b">setSpacing</a> (int size)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sets spacing between each item. <a href="#34d544a1a2bd8beffa6b8e5e84fbc19b"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WBoxLayout.html#a9d0d7ef4ea1753f898d6d71ad8e9b22">spacing</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the spacing between each item. <a href="#a9d0d7ef4ea1753f898d6d71ad8e9b22"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WBoxLayout.html#7c1ec58e25d0b7add93f5f4342844db6">addWidget</a> (<a class="el" href="classWt_1_1WWidget.html">WWidget</a> *widget, int stretch=0, WFlags< <a class="el" href="namespaceWt.html#b8f772c69bc8180c31f9e4f4593b143f">AlignmentFlag</a> > alignment=0)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Adds a widget to the layout. <a href="#7c1ec58e25d0b7add93f5f4342844db6"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WBoxLayout.html#062d26b432841995a0be7b7d7aac6413">addLayout</a> (<a class="el" href="classWt_1_1WLayout.html">WLayout</a> *layout, int stretch=0, WFlags< <a class="el" href="namespaceWt.html#b8f772c69bc8180c31f9e4f4593b143f">AlignmentFlag</a> > alignment=0)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Adds a nested layout to the layout. <a href="#062d26b432841995a0be7b7d7aac6413"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WBoxLayout.html#3cbd78251252e724d01937e2f6cc803d">addSpacing</a> (const <a class="el" href="classWt_1_1WLength.html">WLength</a> &size)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Adds extra spacing. <a href="#3cbd78251252e724d01937e2f6cc803d"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WBoxLayout.html#811708ce9336d753c20aaedc14b00d5f">addStretch</a> (int stretch=0)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Adds a stretch element. <a href="#811708ce9336d753c20aaedc14b00d5f"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WBoxLayout.html#9ebc82bb4cc8f0bbb4e272df6ab4c02f">insertWidget</a> (int index, <a class="el" href="classWt_1_1WWidget.html">WWidget</a> *widget, int stretch=0, WFlags< <a class="el" href="namespaceWt.html#b8f772c69bc8180c31f9e4f4593b143f">AlignmentFlag</a> > alignment=0)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Inserts a widget in the layout. <a href="#9ebc82bb4cc8f0bbb4e272df6ab4c02f"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WBoxLayout.html#8ab8fd1d8b5f3634eac9b559605e4ced">insertLayout</a> (int index, <a class="el" href="classWt_1_1WLayout.html">WLayout</a> *layout, int stretch=0, WFlags< <a class="el" href="namespaceWt.html#b8f772c69bc8180c31f9e4f4593b143f">AlignmentFlag</a> > alignment=0)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Inserts a nested layout in the layout. <a href="#8ab8fd1d8b5f3634eac9b559605e4ced"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WBoxLayout.html#0d5d6a9e408c6bc7e25020f8c85cb4cf">insertSpacing</a> (int index, const <a class="el" href="classWt_1_1WLength.html">WLength</a> &size)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Inserts extra spacing in the layout. <a href="#0d5d6a9e408c6bc7e25020f8c85cb4cf"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WBoxLayout.html#0174de2ae36e2992b7209cf789d85271">insertStretch</a> (int index, int stretch=0)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Inserts a stretch element in the layout. <a href="#0174de2ae36e2992b7209cf789d85271"></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_1WBoxLayout.html#47182ea3c459afdadb3cc03232a8d110">setStretchFactor</a> (<a class="el" href="classWt_1_1WLayout.html">WLayout</a> *layout, int stretch)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sets the stretch factor for a nested layout. <a href="#47182ea3c459afdadb3cc03232a8d110"></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_1WBoxLayout.html#f5ce73d289874c80e88ed6fd9934bb39">setStretchFactor</a> (<a class="el" href="classWt_1_1WWidget.html">WWidget</a> *widget, int stretch)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sets the stretch factor for a nested layout. <a href="#f5ce73d289874c80e88ed6fd9934bb39"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WBoxLayout.html#00bdfb4d442bd8e8ad9c33b72692763f">setResizable</a> (int index, bool enabled=true)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sets whether the use may drag a particular border. <a href="#00bdfb4d442bd8e8ad9c33b72692763f"></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_1WBoxLayout.html#bec500f70e659fa0ecd7d5277ff3fd39">isResizable</a> (int row) const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns whether the user may drag a particular border. <a href="#bec500f70e659fa0ecd7d5277ff3fd39"></a><br></td></tr>
</table>
<hr><a name="_details"></a><h2>Detailed Description</h2>
A layout manager which arranges widgets horizontally or vertically.
<p>
This layout manager arranges widgets horizontally or vertically inside the parent container. The space is divided so that each widgets is given its minimum size, and remaining space is divided according to stretch factors among the widgets. The widget minimum height or width is used for sizing each widget, whose default values may be overridden using <a class="el" href="classWt_1_1WWidget.html#092c7d1ecfde7f004ef120389d91775d" title="Sets a minimum size.">WWidget::setMinimumSize()</a>.<p>
If you want to use the layout manager for a container which does not have a height that is constrained somehow, you need to specify AlignTop in the alignment flags of <a class="el" href="classWt_1_1WContainerWidget.html#1c84e0ffe330d4798f0ce217f75be08c" title="Sets a layout manager for the container.">WContainerWidget::setLayout()</a>. Otherwise the behavior is undefined (the parent container will continue to increase in size as it tries to satisfy the constraints assuming a contrained height).<p>
You can use <a class="el" href="classWt_1_1WContainerWidget.html#e269f870992c5843d3097a63795b10d6">WContainerWidget::setOverflow(OverflowAuto) </a> to automatically show scrollbars on a container widget inserted in the layout. In some cases, you will want to wrap another widget (like a <a class="el" href="classWt_1_1WTable.html" title="A container widget which provides layout of children in a table grid.">WTable</a>) into <a class="el" href="classWt_1_1WContainerWidget.html" title="A widget that holds and manages child widgets.">WContainerWidget</a> to have the scrollbars, since not all widgets allow for scrollbars.<p>
A layout manager may provide resize handles between items which allow the user to change the automatic layout provided by the layout manager (see <a class="el" href="classWt_1_1WBoxLayout.html#00bdfb4d442bd8e8ad9c33b72692763f" title="Sets whether the use may drag a particular border.">setResizable()</a>). Resize handles between rows for a vertically oriented box layout only work when the layout fills the parent vertical space (i.e. is not aligned to the top). Likewise, resize handles between columns for a horizontally oriented box layout only work when the layout fills the parent horiziontal space (i.e. is not aligned left, right or centered).<p>
Each item is separated using a constant spacing, which defaults to 6 pixels, and can be changed using <a class="el" href="classWt_1_1WBoxLayout.html#34d544a1a2bd8beffa6b8e5e84fbc19b" title="Sets spacing between each item.">setSpacing()</a>. In addition, when this layout is a top-level layout (i.e. is not nested inside another layout), a margin is set around the contents, which thus replaces padding defined for the container. This margin defaults to 9 pixels, and can be changed using <a class="el" href="classWt_1_1WLayout.html#f18bae8c743c9f9a5cabee58826ffb45" title="Set contents margins (in pixels).">setContentsMargins()</a>. It is not allowed to define padding for the container widget using its CSS 'padding' property or the <a class="el" href="classWt_1_1WContainerWidget.html#fa5f6800e2170ae2f4586a25c72f8c34" title="Sets padding inside the widget.">WContainerWidget::setPadding()</a>. You can add more space between two widgets using <a class="el" href="classWt_1_1WBoxLayout.html#3cbd78251252e724d01937e2f6cc803d" title="Adds extra spacing.">addSpacing()</a>.<p>
For each item a stretch factor may be defined, which controls how remaining space is used. Each item is stretched using the stretch factor to fill the remaining space.<p>
Usage example: <div class="fragment"><pre class="fragment"> <a class="code" href="classWt_1_1WContainerWidget.html" title="A widget that holds and manages child widgets.">Wt::WContainerWidget</a> *w = <span class="keyword">new</span> <a class="code" href="classWt_1_1WContainerWidget.html" title="A widget that holds and manages child widgets.">Wt::WContainerWidget</a>(<span class="keyword">this</span>);
w-><a class="code" href="classWt_1_1WWebWidget.html#e1b84e31581405358b6d57ec14505234" title="Resizes the widget.">resize</a>(WLength(), 600);
<a class="code" href="classWt_1_1WBoxLayout.html" title="A layout manager which arranges widgets horizontally or vertically.">Wt::WBoxLayout</a> *layout = <span class="keyword">new</span> <a class="code" href="classWt_1_1WBoxLayout.html" title="A layout manager which arranges widgets horizontally or vertically.">Wt::WBoxLayout</a>(<a class="code" href="classWt_1_1WBoxLayout.html#ddc4cd1f8b1158dcf16eb10d429803ecf705eddcc1a4639aeb1908f1c7acface" title="Vertical layout, widgets are arranged from top to bottom.">Wt::WBoxLayout::TopToBottom</a>);
layout-><a class="code" href="classWt_1_1WBoxLayout.html#7c1ec58e25d0b7add93f5f4342844db6" title="Adds a widget to the layout.">addWidget</a>(<span class="keyword">new</span> <a class="code" href="classWt_1_1WText.html" title="A widget that renders (XHTML) text.">Wt::WText</a>(<span class="stringliteral">"One"</span>));
layout-><a class="code" href="classWt_1_1WBoxLayout.html#7c1ec58e25d0b7add93f5f4342844db6" title="Adds a widget to the layout.">addWidget</a>(<span class="keyword">new</span> <a class="code" href="classWt_1_1WText.html" title="A widget that renders (XHTML) text.">Wt::WText</a>(<span class="stringliteral">"Two"</span>));
layout-><a class="code" href="classWt_1_1WBoxLayout.html#7c1ec58e25d0b7add93f5f4342844db6" title="Adds a widget to the layout.">addWidget</a>(<span class="keyword">new</span> <a class="code" href="classWt_1_1WText.html" title="A widget that renders (XHTML) text.">Wt::WText</a>(<span class="stringliteral">"Three"</span>));
layout-><a class="code" href="classWt_1_1WBoxLayout.html#7c1ec58e25d0b7add93f5f4342844db6" title="Adds a widget to the layout.">addWidget</a>(<span class="keyword">new</span> <a class="code" href="classWt_1_1WText.html" title="A widget that renders (XHTML) text.">Wt::WText</a>(<span class="stringliteral">"Four"</span>));
w-><a class="code" href="classWt_1_1WContainerWidget.html#1c84e0ffe330d4798f0ce217f75be08c" title="Sets a layout manager for the container.">setLayout</a>(layout);
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<dl class="note" compact><dt><b>Note:</b></dt><dd>This layout manager is applicable only to <a class="el" href="classWt_1_1WContainerWidget.html" title="A widget that holds and manages child widgets.">WContainerWidget</a> container widgets. You may use it within an <a class="el" href="classWt_1_1Ext_1_1Container.html" title="A container class which manages its contents using layout managers.">Ext::Container</a> indirectly by first setting a <a class="el" href="classWt_1_1WContainerWidget.html" title="A widget that holds and manages child widgets.">WContainerWidget</a> using a <a class="el" href="classWt_1_1WFitLayout.html" title="A layout manager which spans a single widget to all available space.">WFitLayout</a>.<p>
When JavaScript support is not available, only Safari and Firefox properly implement this box layout. For other browsers, only the horizontal layout is properly implemented, while vertically all widgets use their minimum size.<p>
When set on a <a class="el" href="classWt_1_1WContainerWidget.html" title="A widget that holds and manages child widgets.">WContainerWidget</a>, this layout manager accepts the following hints (see <a class="el" href="classWt_1_1WLayout.html#c8fa1927e7c9b15e3e673cbf6a473c34" title="Provides a hint to the layout implementation.">setLayoutHint()</a>): <ul>
<li>
"table-layout" with possible values "auto" (default) or "fixed".<br>
Use "fixed" to prevent nested tables from overflowing the layout. In that case, you will need to specify a width (in CSS or otherwise) for at least one item in every column that has no stretch factor. </li>
</ul>
</dd></dl>
<hr><h2>Member Enumeration Documentation</h2>
<a class="anchor" name="ddc4cd1f8b1158dcf16eb10d429803ec"></a><!-- doxytag: member="Wt::WBoxLayout::Direction" ref="ddc4cd1f8b1158dcf16eb10d429803ec" args="" -->
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<td class="memname">enum <a class="el" href="classWt_1_1WBoxLayout.html#ddc4cd1f8b1158dcf16eb10d429803ec">Wt::WBoxLayout::Direction</a> </td>
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Enumeration of the direction in which widgets are layed out.
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<dl compact><dt><b>Enumerator: </b></dt><dd>
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<tr><td valign="top"><em><a class="anchor" name="ddc4cd1f8b1158dcf16eb10d429803ec174fcc4fd0b807e60c838385be19e1f9"></a><!-- doxytag: member="LeftToRight" ref="ddc4cd1f8b1158dcf16eb10d429803ec174fcc4fd0b807e60c838385be19e1f9" args="" -->LeftToRight</em> </td><td>
Horizontal layout, widgets are arranged from left to right. </td></tr>
<tr><td valign="top"><em><a class="anchor" name="ddc4cd1f8b1158dcf16eb10d429803eca4a4afece8c59ddaf384c08b276aa70f"></a><!-- doxytag: member="RightToLeft" ref="ddc4cd1f8b1158dcf16eb10d429803eca4a4afece8c59ddaf384c08b276aa70f" args="" -->RightToLeft</em> </td><td>
Horizontal layout, widgets are arranged from right to left. </td></tr>
<tr><td valign="top"><em><a class="anchor" name="ddc4cd1f8b1158dcf16eb10d429803ecf705eddcc1a4639aeb1908f1c7acface"></a><!-- doxytag: member="TopToBottom" ref="ddc4cd1f8b1158dcf16eb10d429803ecf705eddcc1a4639aeb1908f1c7acface" args="" -->TopToBottom</em> </td><td>
Vertical layout, widgets are arranged from top to bottom. </td></tr>
<tr><td valign="top"><em><a class="anchor" name="ddc4cd1f8b1158dcf16eb10d429803ecf25be1e7bbefae032ceb333e67bda5f2"></a><!-- doxytag: member="BottomToTop" ref="ddc4cd1f8b1158dcf16eb10d429803ecf25be1e7bbefae032ceb333e67bda5f2" args="" -->BottomToTop</em> </td><td>
Vertical layout, widgets are arranged from bottom to top. </td></tr>
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<hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="9472dd446911a6a6d33b019a34a0c4fc"></a><!-- doxytag: member="Wt::WBoxLayout::WBoxLayout" ref="9472dd446911a6a6d33b019a34a0c4fc" args="(Direction dir, WWidget *parent=0)" -->
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<td class="memname">Wt::WBoxLayout::WBoxLayout </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classWt_1_1WBoxLayout.html#ddc4cd1f8b1158dcf16eb10d429803ec">Direction</a> </td>
<td class="paramname"> <em>dir</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classWt_1_1WWidget.html">WWidget</a> * </td>
<td class="paramname"> <em>parent</em> = <code>0</code></td><td> </td>
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Creates a new box layout.
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This constructor is rarely used. Instead, use the convenient constructors of the specialized <a class="el" href="classWt_1_1WHBoxLayout.html" title="A layout manager which arranges widgets horizontally.">WHBoxLayout</a> or <a class="el" href="classWt_1_1WVBoxLayout.html" title="A layout manager which arranges widgets vertically.">WVBoxLayout</a> classes.<p>
Use <code>parent</code> = <code>0</code> to created a layout manager that can be nested inside other layout managers.
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<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="2932a804ac01e0b314408bf4d366385d"></a><!-- doxytag: member="Wt::WBoxLayout::addItem" ref="2932a804ac01e0b314408bf4d366385d" args="(WLayoutItem *item)" -->
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<td class="memname">void Wt::WBoxLayout::addItem </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classWt_1_1WLayoutItem.html">WLayoutItem</a> * </td>
<td class="paramname"> <em>item</em> </td>
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<td><code> [virtual]</code></td>
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Adds a layout <em>item</em>.
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The item may be a widget or nested layout.<p>
How the item is layed out with respect to siblings is implementation specific to the layout manager. In some cases, a layout manager will overload this method with extra arguments that specify layout options.<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WBoxLayout.html#a01f05c0f40fa89e418b802f78f2870c" title="Removes a layout item (widget or nested layout).">removeItem(WLayoutItem *)</a>, <a class="el" href="classWt_1_1WLayout.html#886d2ec4b6b97524ba3dff93252e6540" title="Adds the given widget to the layout.">addWidget(WWidget *)</a> </dd></dl>
<p>Implements <a class="el" href="classWt_1_1WLayout.html#d4a778298c01d290692afc77e441c629">Wt::WLayout</a>.</p>
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<a class="anchor" name="a01f05c0f40fa89e418b802f78f2870c"></a><!-- doxytag: member="Wt::WBoxLayout::removeItem" ref="a01f05c0f40fa89e418b802f78f2870c" args="(WLayoutItem *item)" -->
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<td class="memname">void Wt::WBoxLayout::removeItem </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classWt_1_1WLayoutItem.html">WLayoutItem</a> * </td>
<td class="paramname"> <em>item</em> </td>
<td> ) </td>
<td><code> [virtual]</code></td>
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<p>
Removes a layout <em>item</em> (widget or nested layout).
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<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WBoxLayout.html#2932a804ac01e0b314408bf4d366385d" title="Adds a layout item.">addItem(WLayoutItem *)</a>, <a class="el" href="classWt_1_1WLayout.html#3f5e0f62a0deb8f2473e52c5270128d5" title="Removes the given widget from the layout.">removeWidget(WWidget *)</a> </dd></dl>
<p>Implements <a class="el" href="classWt_1_1WLayout.html#8c8d94070a51e669f8077249b67742ae">Wt::WLayout</a>.</p>
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<a class="anchor" name="ad2ec4be48cb11a7802b3e6d7cb8f0fd"></a><!-- doxytag: member="Wt::WBoxLayout::itemAt" ref="ad2ec4be48cb11a7802b3e6d7cb8f0fd" args="(int index) const " -->
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<td class="memname"><a class="el" href="classWt_1_1WLayoutItem.html">WLayoutItem</a> * Wt::WBoxLayout::itemAt </td>
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Returns the layout item at a specific <em>index</em>.
<p>
If there is no item at the <code>index</code>, <code>0</code> is returned.<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WLayout.html#fecba709ae19b93ef9bbe167650dbc5c" title="Returns the index of a given item.">indexOf(WLayoutItem *) const</a>, <a class="el" href="classWt_1_1WBoxLayout.html#961fe311fd07adbf7b60b571ef7a8278" title="Returns the number of items in this layout.">count()</a> </dd></dl>
<p>Implements <a class="el" href="classWt_1_1WLayout.html#3d48e5e4f56ad5d1b0e60180ebc91442">Wt::WLayout</a>.</p>
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<a class="anchor" name="961fe311fd07adbf7b60b571ef7a8278"></a><!-- doxytag: member="Wt::WBoxLayout::count" ref="961fe311fd07adbf7b60b571ef7a8278" args="() const " -->
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<td class="memname">int Wt::WBoxLayout::count </td>
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Returns the number of items in this layout.
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This may be a theoretical number, which is greater than the actual number of items. It can be used to iterate over the items in the layout, in conjunction with <a class="el" href="classWt_1_1WBoxLayout.html#ad2ec4be48cb11a7802b3e6d7cb8f0fd" title="Returns the layout item at a specific index.">itemAt()</a>.
<p>Implements <a class="el" href="classWt_1_1WLayout.html#799b3cce5c1717b18e54c14471e84033">Wt::WLayout</a>.</p>
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<a class="anchor" name="f669ef9fbcdb8954d1cfa7bb9e47b90f"></a><!-- doxytag: member="Wt::WBoxLayout::setDirection" ref="f669ef9fbcdb8954d1cfa7bb9e47b90f" args="(Direction direction)" -->
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<td class="memname">void Wt::WBoxLayout::setDirection </td>
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<td class="paramtype"><a class="el" href="classWt_1_1WBoxLayout.html#ddc4cd1f8b1158dcf16eb10d429803ec">Direction</a> </td>
<td class="paramname"> <em>direction</em> </td>
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Sets the layout direction.
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<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WBoxLayout.html#a101f33971e037bed0e4bfea164cf0dc" title="Returns the layout direction.">direction()</a> </dd></dl>
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<a class="anchor" name="a101f33971e037bed0e4bfea164cf0dc"></a><!-- doxytag: member="Wt::WBoxLayout::direction" ref="a101f33971e037bed0e4bfea164cf0dc" args="() const " -->
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<td class="memname"><a class="el" href="classWt_1_1WBoxLayout.html#ddc4cd1f8b1158dcf16eb10d429803ec">Direction</a> Wt::WBoxLayout::direction </td>
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Returns the layout direction.
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<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WBoxLayout.html#f669ef9fbcdb8954d1cfa7bb9e47b90f" title="Sets the layout direction.">setDirection()</a> </dd></dl>
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<a class="anchor" name="34d544a1a2bd8beffa6b8e5e84fbc19b"></a><!-- doxytag: member="Wt::WBoxLayout::setSpacing" ref="34d544a1a2bd8beffa6b8e5e84fbc19b" args="(int size)" -->
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<td class="memname">void Wt::WBoxLayout::setSpacing </td>
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Sets spacing between each item.
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The default spacing is 6 pixels.
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<a class="anchor" name="a9d0d7ef4ea1753f898d6d71ad8e9b22"></a><!-- doxytag: member="Wt::WBoxLayout::spacing" ref="a9d0d7ef4ea1753f898d6d71ad8e9b22" args="() const " -->
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Returns the spacing between each item.
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<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WBoxLayout.html#34d544a1a2bd8beffa6b8e5e84fbc19b" title="Sets spacing between each item.">setSpacing()</a> </dd></dl>
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<a class="anchor" name="7c1ec58e25d0b7add93f5f4342844db6"></a><!-- doxytag: member="Wt::WBoxLayout::addWidget" ref="7c1ec58e25d0b7add93f5f4342844db6" args="(WWidget *widget, int stretch=0, WFlags< AlignmentFlag > alignment=0)" -->
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<td class="paramtype">WFlags< <a class="el" href="namespaceWt.html#b8f772c69bc8180c31f9e4f4593b143f">AlignmentFlag</a> > </td>
<td class="paramname"> <em>alignment</em> = <code>0</code></td><td> </td>
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Adds a widget to the layout.
<p>
Adds a widget to the layout, with given <code>stretch</code> factor. The <code>alignemnt</code> parameter is a combination of a horizontal and/or a vertical AlignmentFlag OR'ed together.<p>
The <code>alignment</code> specifies the vertical and horizontal alignment of the item. The default value 0 indicates that the item is stretched to fill the entire column or row. The alignment can be specified as a logical combination of a horizontal alignment (<a class="el" href="namespaceWt.html#b8f772c69bc8180c31f9e4f4593b143fd033ef69b45d0b75633be34168c9b606" title="Align to the left.">Wt::AlignLeft</a>, <a class="el" href="namespaceWt.html#b8f772c69bc8180c31f9e4f4593b143f121104cdbb5db77c7d038813a93998e5" title="Align horizontally in the center.">Wt::AlignCenter</a>, or <a class="el" href="namespaceWt.html#b8f772c69bc8180c31f9e4f4593b143fb250310385383f0b2f68d4e0ad5567e1" title="Align to the right.">Wt::AlignRight</a>) and a vertical alignment (<a class="el" href="namespaceWt.html#b8f772c69bc8180c31f9e4f4593b143f58fe5182bd266132c59718c6d30945a9" title="Align top of widget with top of tallest sibling widget.">Wt::AlignTop</a>, <a class="el" href="namespaceWt.html#b8f772c69bc8180c31f9e4f4593b143f2ed90f01dbf74049f428d33769d48e3f" title="Align vertically the middle to the middle of the parent widget.">Wt::AlignMiddle</a>, or <a class="el" href="namespaceWt.html#b8f772c69bc8180c31f9e4f4593b143f4f2aa4abba8500e25651bf8db5f0c162" title="Align bottom of widget to the bottom of the lowest sigling widget.">Wt::AlignBottom</a>).<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WBoxLayout.html#062d26b432841995a0be7b7d7aac6413" title="Adds a nested layout to the layout.">addLayout()</a>, <a class="el" href="classWt_1_1WBoxLayout.html#9ebc82bb4cc8f0bbb4e272df6ab4c02f" title="Inserts a widget in the layout.">insertWidget()</a> </dd></dl>
</div>
</div><p>
<a class="anchor" name="062d26b432841995a0be7b7d7aac6413"></a><!-- doxytag: member="Wt::WBoxLayout::addLayout" ref="062d26b432841995a0be7b7d7aac6413" args="(WLayout *layout, int stretch=0, WFlags< AlignmentFlag > alignment=0)" -->
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<td class="memname">void Wt::WBoxLayout::addLayout </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classWt_1_1WLayout.html">WLayout</a> * </td>
<td class="paramname"> <em>layout</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>stretch</em> = <code>0</code>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">WFlags< <a class="el" href="namespaceWt.html#b8f772c69bc8180c31f9e4f4593b143f">AlignmentFlag</a> > </td>
<td class="paramname"> <em>alignment</em> = <code>0</code></td><td> </td>
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<td></td>
<td>)</td>
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<div class="memdoc">
<p>
Adds a nested layout to the layout.
<p>
Adds a nested layout, with given <code>stretch</code> factor.<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WBoxLayout.html#7c1ec58e25d0b7add93f5f4342844db6" title="Adds a widget to the layout.">addWidget(WWidget *, int, WFlags<AlignmentFlag>)</a>, <a class="el" href="classWt_1_1WBoxLayout.html#8ab8fd1d8b5f3634eac9b559605e4ced" title="Inserts a nested layout in the layout.">insertLayout()</a> </dd></dl>
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<a class="anchor" name="3cbd78251252e724d01937e2f6cc803d"></a><!-- doxytag: member="Wt::WBoxLayout::addSpacing" ref="3cbd78251252e724d01937e2f6cc803d" args="(const WLength &size)" -->
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<td class="memname">void Wt::WBoxLayout::addSpacing </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classWt_1_1WLength.html">WLength</a> & </td>
<td class="paramname"> <em>size</em> </td>
<td> ) </td>
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<p>
Adds extra spacing.
<p>
Adds extra spacing to the layout.<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WBoxLayout.html#811708ce9336d753c20aaedc14b00d5f" title="Adds a stretch element.">addStretch()</a>, <a class="el" href="classWt_1_1WBoxLayout.html#0174de2ae36e2992b7209cf789d85271" title="Inserts a stretch element in the layout.">insertStretch()</a> </dd></dl>
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<a class="anchor" name="811708ce9336d753c20aaedc14b00d5f"></a><!-- doxytag: member="Wt::WBoxLayout::addStretch" ref="811708ce9336d753c20aaedc14b00d5f" args="(int stretch=0)" -->
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<td class="memname">void Wt::WBoxLayout::addStretch </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>stretch</em> = <code>0</code> </td>
<td> ) </td>
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<div class="memdoc">
<p>
Adds a stretch element.
<p>
Adds a stretch element to the layout. This adds an empty space that stretches as needed.<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WBoxLayout.html#3cbd78251252e724d01937e2f6cc803d" title="Adds extra spacing.">addSpacing()</a>, <a class="el" href="classWt_1_1WBoxLayout.html#0174de2ae36e2992b7209cf789d85271" title="Inserts a stretch element in the layout.">insertStretch()</a> </dd></dl>
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</div><p>
<a class="anchor" name="9ebc82bb4cc8f0bbb4e272df6ab4c02f"></a><!-- doxytag: member="Wt::WBoxLayout::insertWidget" ref="9ebc82bb4cc8f0bbb4e272df6ab4c02f" args="(int index, WWidget *widget, int stretch=0, WFlags< AlignmentFlag > alignment=0)" -->
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<td class="memname">void Wt::WBoxLayout::insertWidget </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>index</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classWt_1_1WWidget.html">WWidget</a> * </td>
<td class="paramname"> <em>widget</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>stretch</em> = <code>0</code>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">WFlags< <a class="el" href="namespaceWt.html#b8f772c69bc8180c31f9e4f4593b143f">AlignmentFlag</a> > </td>
<td class="paramname"> <em>alignment</em> = <code>0</code></td><td> </td>
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<td>)</td>
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<div class="memdoc">
<p>
Inserts a widget in the layout.
<p>
Inserts a widget in the layout at position <code>index</code>, with given <code>stretch</code> factor.<p>
The <code>alignment</code> specifies the vertical and horizontal alignment of the item. The default value 0 indicates that the item is stretched to fill the entire column or row. The alignment can be specified as a logical combination of a horizontal alignment (<a class="el" href="namespaceWt.html#b8f772c69bc8180c31f9e4f4593b143fd033ef69b45d0b75633be34168c9b606" title="Align to the left.">Wt::AlignLeft</a>, <a class="el" href="namespaceWt.html#b8f772c69bc8180c31f9e4f4593b143f121104cdbb5db77c7d038813a93998e5" title="Align horizontally in the center.">Wt::AlignCenter</a>, or <a class="el" href="namespaceWt.html#b8f772c69bc8180c31f9e4f4593b143fb250310385383f0b2f68d4e0ad5567e1" title="Align to the right.">Wt::AlignRight</a>) and a vertical alignment (<a class="el" href="namespaceWt.html#b8f772c69bc8180c31f9e4f4593b143f58fe5182bd266132c59718c6d30945a9" title="Align top of widget with top of tallest sibling widget.">Wt::AlignTop</a>, <a class="el" href="namespaceWt.html#b8f772c69bc8180c31f9e4f4593b143f2ed90f01dbf74049f428d33769d48e3f" title="Align vertically the middle to the middle of the parent widget.">Wt::AlignMiddle</a>, or <a class="el" href="namespaceWt.html#b8f772c69bc8180c31f9e4f4593b143f4f2aa4abba8500e25651bf8db5f0c162" title="Align bottom of widget to the bottom of the lowest sigling widget.">Wt::AlignBottom</a>).<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WBoxLayout.html#8ab8fd1d8b5f3634eac9b559605e4ced" title="Inserts a nested layout in the layout.">insertLayout()</a>, <a class="el" href="classWt_1_1WBoxLayout.html#7c1ec58e25d0b7add93f5f4342844db6" title="Adds a widget to the layout.">addWidget(WWidget *, int, WFlags<AlignmentFlag>)</a> </dd></dl>
</div>
</div><p>
<a class="anchor" name="8ab8fd1d8b5f3634eac9b559605e4ced"></a><!-- doxytag: member="Wt::WBoxLayout::insertLayout" ref="8ab8fd1d8b5f3634eac9b559605e4ced" args="(int index, WLayout *layout, int stretch=0, WFlags< AlignmentFlag > alignment=0)" -->
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<td class="memname">void Wt::WBoxLayout::insertLayout </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>index</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classWt_1_1WLayout.html">WLayout</a> * </td>
<td class="paramname"> <em>layout</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>stretch</em> = <code>0</code>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">WFlags< <a class="el" href="namespaceWt.html#b8f772c69bc8180c31f9e4f4593b143f">AlignmentFlag</a> > </td>
<td class="paramname"> <em>alignment</em> = <code>0</code></td><td> </td>
</tr>
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<td></td>
<td>)</td>
<td></td><td></td><td></td>
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<div class="memdoc">
<p>
Inserts a nested layout in the layout.
<p>
Inserts a nested layout in the layout at position<code>index</code>, with given <code>stretch</code> factor.<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WBoxLayout.html#9ebc82bb4cc8f0bbb4e272df6ab4c02f" title="Inserts a widget in the layout.">insertWidget()</a>, <a class="el" href="classWt_1_1WBoxLayout.html#062d26b432841995a0be7b7d7aac6413" title="Adds a nested layout to the layout.">addLayout()</a> </dd></dl>
</div>
</div><p>
<a class="anchor" name="0d5d6a9e408c6bc7e25020f8c85cb4cf"></a><!-- doxytag: member="Wt::WBoxLayout::insertSpacing" ref="0d5d6a9e408c6bc7e25020f8c85cb4cf" args="(int index, const WLength &size)" -->
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<td class="memname">void Wt::WBoxLayout::insertSpacing </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>index</em>, </td>
</tr>
<tr>
<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>size</em></td><td> </td>
</tr>
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<td></td>
<td>)</td>
<td></td><td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Inserts extra spacing in the layout.
<p>
Inserts extra spacing in the layout at position <code>index</code>.<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WBoxLayout.html#0174de2ae36e2992b7209cf789d85271" title="Inserts a stretch element in the layout.">insertStretch()</a>, <a class="el" href="classWt_1_1WBoxLayout.html#3cbd78251252e724d01937e2f6cc803d" title="Adds extra spacing.">addSpacing()</a> </dd></dl>
</div>
</div><p>
<a class="anchor" name="0174de2ae36e2992b7209cf789d85271"></a><!-- doxytag: member="Wt::WBoxLayout::insertStretch" ref="0174de2ae36e2992b7209cf789d85271" args="(int index, int stretch=0)" -->
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<td class="memname">void Wt::WBoxLayout::insertStretch </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>index</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>stretch</em> = <code>0</code></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Inserts a stretch element in the layout.
<p>
Inserts a stretch element in the layout at position <code>index</code>. This adds an empty space that stretches as needed.<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WBoxLayout.html#0d5d6a9e408c6bc7e25020f8c85cb4cf" title="Inserts extra spacing in the layout.">insertSpacing()</a>, <a class="el" href="classWt_1_1WBoxLayout.html#811708ce9336d753c20aaedc14b00d5f" title="Adds a stretch element.">addStretch()</a> </dd></dl>
</div>
</div><p>
<a class="anchor" name="47182ea3c459afdadb3cc03232a8d110"></a><!-- doxytag: member="Wt::WBoxLayout::setStretchFactor" ref="47182ea3c459afdadb3cc03232a8d110" args="(WLayout *layout, int stretch)" -->
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<td class="memname">bool Wt::WBoxLayout::setStretchFactor </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classWt_1_1WLayout.html">WLayout</a> * </td>
<td class="paramname"> <em>layout</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>stretch</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td></td>
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<div class="memdoc">
<p>
Sets the stretch factor for a nested layout.
<p>
The <code>layout</code> must have previously been added to this layout using <a class="el" href="classWt_1_1WBoxLayout.html#8ab8fd1d8b5f3634eac9b559605e4ced" title="Inserts a nested layout in the layout.">insertLayout()</a> or <a class="el" href="classWt_1_1WBoxLayout.html#062d26b432841995a0be7b7d7aac6413" title="Adds a nested layout to the layout.">addLayout()</a>.<p>
Returns whether the <code>stretch</code> could be set.
</div>
</div><p>
<a class="anchor" name="f5ce73d289874c80e88ed6fd9934bb39"></a><!-- doxytag: member="Wt::WBoxLayout::setStretchFactor" ref="f5ce73d289874c80e88ed6fd9934bb39" args="(WWidget *widget, int stretch)" -->
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<td class="memname">bool Wt::WBoxLayout::setStretchFactor </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classWt_1_1WWidget.html">WWidget</a> * </td>
<td class="paramname"> <em>widget</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>stretch</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td></td>
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<div class="memdoc">
<p>
Sets the stretch factor for a nested layout.
<p>
The <code>widget</code> must have previously been added to this layout using <a class="el" href="classWt_1_1WBoxLayout.html#9ebc82bb4cc8f0bbb4e272df6ab4c02f" title="Inserts a widget in the layout.">insertWidget()</a> or <a class="el" href="classWt_1_1WBoxLayout.html#7c1ec58e25d0b7add93f5f4342844db6" title="Adds a widget to the layout.">addWidget()</a>.<p>
Returns whether the <code>stretch</code> could be set.
</div>
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<a class="anchor" name="00bdfb4d442bd8e8ad9c33b72692763f"></a><!-- doxytag: member="Wt::WBoxLayout::setResizable" ref="00bdfb4d442bd8e8ad9c33b72692763f" args="(int index, bool enabled=true)" -->
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<td class="memname">void Wt::WBoxLayout::setResizable </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>index</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">bool </td>
<td class="paramname"> <em>enabled</em> = <code>true</code></td><td> </td>
</tr>
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<td></td>
<td>)</td>
<td></td><td></td><td></td>
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<p>
Sets whether the use may drag a particular border.
<p>
This method sets whether the border that separates item <em>index</em> from the next item may be resized by the user, depending on the value of <em>enabled</em>.<p>
The default value is <em>false</em>.
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<a class="anchor" name="bec500f70e659fa0ecd7d5277ff3fd39"></a><!-- doxytag: member="Wt::WBoxLayout::isResizable" ref="bec500f70e659fa0ecd7d5277ff3fd39" args="(int row) const " -->
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<td class="memname">bool Wt::WBoxLayout::isResizable </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>row</em> </td>
<td> ) </td>
<td> const</td>
</tr>
</table>
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<div class="memdoc">
<p>
Returns whether the user may drag a particular border.
<p>
This method returns whether the border that separates item <em>index</em> from the next item may be resized by the user.<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WBoxLayout.html#00bdfb4d442bd8e8ad9c33b72692763f" title="Sets whether the use may drag a particular border.">setResizable()</a> </dd></dl>
</div>
</div><p>
</div>
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