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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>GtkSizeGroup: GTK+ 3 Reference Manual</title> <meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> <link rel="home" href="index.html" title="GTK+ 3 Reference Manual"> <link rel="up" href="MiscObjects.html" title="Miscellaneous"> <link rel="prev" href="GtkIMMulticontext.html" title="GtkIMMulticontext"> <link rel="next" href="GtkTooltip.html" title="GtkTooltip"> <meta name="generator" content="GTK-Doc V1.32 (XML mode)"> <link rel="stylesheet" href="style.css" type="text/css"> </head> <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> <table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="5"><tr valign="middle"> <td width="100%" align="left" class="shortcuts"> <a href="#" class="shortcut">Top</a><span id="nav_description"> <span class="dim">|</span> <a href="#GtkSizeGroup.description" class="shortcut">Description</a></span><span id="nav_hierarchy"> <span class="dim">|</span> <a href="#GtkSizeGroup.object-hierarchy" class="shortcut">Object Hierarchy</a></span><span id="nav_interfaces"> <span class="dim">|</span> <a href="#GtkSizeGroup.implemented-interfaces" class="shortcut">Implemented Interfaces</a></span><span id="nav_properties"> <span class="dim">|</span> <a href="#GtkSizeGroup.properties" class="shortcut">Properties</a></span> </td> <td><a accesskey="h" href="index.html"><img src="home.png" width="16" height="16" border="0" alt="Home"></a></td> <td><a accesskey="u" href="MiscObjects.html"><img src="up.png" width="16" height="16" border="0" alt="Up"></a></td> <td><a accesskey="p" href="GtkIMMulticontext.html"><img src="left.png" width="16" height="16" border="0" alt="Prev"></a></td> <td><a accesskey="n" href="GtkTooltip.html"><img src="right.png" width="16" height="16" border="0" alt="Next"></a></td> </tr></table> <div class="refentry"> <a name="GtkSizeGroup"></a><div class="titlepage"></div> <div class="refnamediv"><table width="100%"><tr> <td valign="top"> <h2><span class="refentrytitle"><a name="GtkSizeGroup.top_of_page"></a>GtkSizeGroup</span></h2> <p>GtkSizeGroup — Grouping widgets so they request the same size</p> </td> <td class="gallery_image" valign="top" align="right"></td> </tr></table></div> <div class="refsect1"> <a name="GtkSizeGroup.functions"></a><h2>Functions</h2> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="functions_proto_type"> <col class="functions_proto_name"> </colgroup> <tbody> <tr> <td class="function_type"> <a class="link" href="GtkSizeGroup.html" title="GtkSizeGroup"><span class="returnvalue">GtkSizeGroup</span></a> * </td> <td class="function_name"> <a class="link" href="GtkSizeGroup.html#gtk-size-group-new" title="gtk_size_group_new ()">gtk_size_group_new</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <span class="returnvalue">void</span> </td> <td class="function_name"> <a class="link" href="GtkSizeGroup.html#gtk-size-group-set-mode" title="gtk_size_group_set_mode ()">gtk_size_group_set_mode</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a class="link" href="GtkSizeGroup.html#GtkSizeGroupMode" title="enum GtkSizeGroupMode"><span class="returnvalue">GtkSizeGroupMode</span></a> </td> <td class="function_name"> <a class="link" href="GtkSizeGroup.html#gtk-size-group-get-mode" title="gtk_size_group_get_mode ()">gtk_size_group_get_mode</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <span class="returnvalue">void</span> </td> <td class="function_name"> <a class="link" href="GtkSizeGroup.html#gtk-size-group-set-ignore-hidden" title="gtk_size_group_set_ignore_hidden ()">gtk_size_group_set_ignore_hidden</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> </td> <td class="function_name"> <a class="link" href="GtkSizeGroup.html#gtk-size-group-get-ignore-hidden" title="gtk_size_group_get_ignore_hidden ()">gtk_size_group_get_ignore_hidden</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <span class="returnvalue">void</span> </td> <td class="function_name"> <a class="link" href="GtkSizeGroup.html#gtk-size-group-add-widget" title="gtk_size_group_add_widget ()">gtk_size_group_add_widget</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <span class="returnvalue">void</span> </td> <td class="function_name"> <a class="link" href="GtkSizeGroup.html#gtk-size-group-remove-widget" title="gtk_size_group_remove_widget ()">gtk_size_group_remove_widget</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a href="/usr/share/gtk-doc/html/glib/glib-Singly-Linked-Lists.html#GSList"><span class="returnvalue">GSList</span></a> * </td> <td class="function_name"> <a class="link" href="GtkSizeGroup.html#gtk-size-group-get-widgets" title="gtk_size_group_get_widgets ()">gtk_size_group_get_widgets</a> <span class="c_punctuation">()</span> </td> </tr> </tbody> </table></div> </div> <div class="refsect1"> <a name="GtkSizeGroup.properties"></a><h2>Properties</h2> <div class="informaltable"><table class="informaltable" border="0"> <colgroup> <col width="150px" class="properties_type"> <col width="300px" class="properties_name"> <col width="200px" class="properties_flags"> </colgroup> <tbody> <tr> <td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></td> <td class="property_name"><a class="link" href="GtkSizeGroup.html#GtkSizeGroup--ignore-hidden" title="The “ignore-hidden” property">ignore-hidden</a></td> <td class="property_flags">Read / Write</td> </tr> <tr> <td class="property_type"><a class="link" href="GtkSizeGroup.html#GtkSizeGroupMode" title="enum GtkSizeGroupMode"><span class="type">GtkSizeGroupMode</span></a></td> <td class="property_name"><a class="link" href="GtkSizeGroup.html#GtkSizeGroup--mode" title="The “mode” property">mode</a></td> <td class="property_flags">Read / Write</td> </tr> </tbody> </table></div> </div> <div class="refsect1"> <a name="GtkSizeGroup.other"></a><h2>Types and Values</h2> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="other_proto_type"> <col class="other_proto_name"> </colgroup> <tbody> <tr> <td class="datatype_keyword">struct</td> <td class="function_name"><a class="link" href="GtkSizeGroup.html#GtkSizeGroup-struct" title="struct GtkSizeGroup">GtkSizeGroup</a></td> </tr> <tr> <td class="datatype_keyword">enum</td> <td class="function_name"><a class="link" href="GtkSizeGroup.html#GtkSizeGroupMode" title="enum GtkSizeGroupMode">GtkSizeGroupMode</a></td> </tr> </tbody> </table></div> </div> <div class="refsect1"> <a name="GtkSizeGroup.object-hierarchy"></a><h2>Object Hierarchy</h2> <pre class="screen"> <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GObject-struct">GObject</a> <span class="lineart">╰──</span> GtkSizeGroup </pre> </div> <div class="refsect1"> <a name="GtkSizeGroup.implemented-interfaces"></a><h2>Implemented Interfaces</h2> <p> GtkSizeGroup implements <a class="link" href="GtkBuildable.html" title="GtkBuildable">GtkBuildable</a>.</p> </div> <div class="refsect1"> <a name="GtkSizeGroup.includes"></a><h2>Includes</h2> <pre class="synopsis">#include <gtk/gtk.h> </pre> </div> <div class="refsect1"> <a name="GtkSizeGroup.description"></a><h2>Description</h2> <p><a class="link" href="GtkSizeGroup.html" title="GtkSizeGroup"><span class="type">GtkSizeGroup</span></a> provides a mechanism for grouping a number of widgets together so they all request the same amount of space. This is typically useful when you want a column of widgets to have the same size, but you can’t use a <a class="link" href="GtkGrid.html" title="GtkGrid"><span class="type">GtkGrid</span></a> widget.</p> <p>In detail, the size requested for each widget in a <a class="link" href="GtkSizeGroup.html" title="GtkSizeGroup"><span class="type">GtkSizeGroup</span></a> is the maximum of the sizes that would have been requested for each widget in the size group if they were not in the size group. The mode of the size group (see <a class="link" href="GtkSizeGroup.html#gtk-size-group-set-mode" title="gtk_size_group_set_mode ()"><code class="function">gtk_size_group_set_mode()</code></a>) determines whether this applies to the horizontal size, the vertical size, or both sizes.</p> <p>Note that size groups only affect the amount of space requested, not the size that the widgets finally receive. If you want the widgets in a <a class="link" href="GtkSizeGroup.html" title="GtkSizeGroup"><span class="type">GtkSizeGroup</span></a> to actually be the same size, you need to pack them in such a way that they get the size they request and not more. For example, if you are packing your widgets into a table, you would not include the <a class="link" href="GtkTable.html#GTK-FILL:CAPS"><code class="literal">GTK_FILL</code></a> flag.</p> <p><a class="link" href="GtkSizeGroup.html" title="GtkSizeGroup"><span class="type">GtkSizeGroup</span></a> objects are referenced by each widget in the size group, so once you have added all widgets to a <a class="link" href="GtkSizeGroup.html" title="GtkSizeGroup"><span class="type">GtkSizeGroup</span></a>, you can drop the initial reference to the size group with <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#g-object-unref"><code class="function">g_object_unref()</code></a>. If the widgets in the size group are subsequently destroyed, then they will be removed from the size group and drop their references on the size group; when all widgets have been removed, the size group will be freed.</p> <p>Widgets can be part of multiple size groups; GTK+ will compute the horizontal size of a widget from the horizontal requisition of all widgets that can be reached from the widget by a chain of size groups of type <a class="link" href="GtkSizeGroup.html#GTK-SIZE-GROUP-HORIZONTAL:CAPS"><code class="literal">GTK_SIZE_GROUP_HORIZONTAL</code></a> or <a class="link" href="GtkSizeGroup.html#GTK-SIZE-GROUP-BOTH:CAPS"><code class="literal">GTK_SIZE_GROUP_BOTH</code></a>, and the vertical size from the vertical requisition of all widgets that can be reached from the widget by a chain of size groups of type <a class="link" href="GtkSizeGroup.html#GTK-SIZE-GROUP-VERTICAL:CAPS"><code class="literal">GTK_SIZE_GROUP_VERTICAL</code></a> or <a class="link" href="GtkSizeGroup.html#GTK-SIZE-GROUP-BOTH:CAPS"><code class="literal">GTK_SIZE_GROUP_BOTH</code></a>.</p> <p>Note that only non-contextual sizes of every widget are ever consulted by size groups (since size groups have no knowledge of what size a widget will be allocated in one dimension, it cannot derive how much height a widget will receive for a given width). When grouping widgets that trade height for width in mode <a class="link" href="GtkSizeGroup.html#GTK-SIZE-GROUP-VERTICAL:CAPS"><code class="literal">GTK_SIZE_GROUP_VERTICAL</code></a> or <a class="link" href="GtkSizeGroup.html#GTK-SIZE-GROUP-BOTH:CAPS"><code class="literal">GTK_SIZE_GROUP_BOTH</code></a>: the height for the minimum width will be the requested height for all widgets in the group. The same is of course true when horizontally grouping width for height widgets.</p> <p>Widgets that trade height-for-width should set a reasonably large minimum width by way of <a class="link" href="GtkLabel.html#GtkLabel--width-chars" title="The “width-chars” property"><span class="type">“width-chars”</span></a> for instance. Widgets with static sizes as well as widgets that grow (such as ellipsizing text) need no such considerations.</p> <div class="refsect2"> <a name="id-1.3.19.10.9.9"></a><h3>GtkSizeGroup as GtkBuildable</h3> <p>Size groups can be specified in a UI definition by placing an <object> element with <code class="literal">class="GtkSizeGroup"</code> somewhere in the UI definition. The widgets that belong to the size group are specified by a <widgets> element that may contain multiple <widget> elements, one for each member of the size group. The ”name” attribute gives the id of the widget.</p> <p>An example of a UI definition fragment with GtkSizeGroup:</p> <div class="informalexample"> <table class="listing_frame" border="0" cellpadding="0" cellspacing="0"> <tbody> <tr> <td class="listing_lines" align="right"><pre>1 2 3 4 5 6 7</pre></td> <td class="listing_code"><pre class="programlisting"><span class="o"><</span><span class="n">object</span> <span class="n">class</span><span class="o">=</span><span class="s">"GtkSizeGroup"</span><span class="o">></span> <span class="o"><</span><span class="n">property</span> <span class="n">name</span><span class="o">=</span><span class="s">"mode"</span><span class="o">></span><span class="n">GTK_SIZE_GROUP_HORIZONTAL</span><span class="o"></</span><span class="n">property</span><span class="o">></span> <span class="o"><</span><span class="n">widgets</span><span class="o">></span> <span class="o"><</span><span class="n">widget</span> <span class="n">name</span><span class="o">=</span><span class="s">"radio1"</span><span class="o">/></span> <span class="o"><</span><span class="n">widget</span> <span class="n">name</span><span class="o">=</span><span class="s">"radio2"</span><span class="o">/></span> <span class="o"></</span><span class="n">widgets</span><span class="o">></span> <span class="o"></</span><span class="n">object</span><span class="o">></span></pre></td> </tr> </tbody> </table> </div> <p></p> </div> </div> <div class="refsect1"> <a name="GtkSizeGroup.functions_details"></a><h2>Functions</h2> <div class="refsect2"> <a name="gtk-size-group-new"></a><h3>gtk_size_group_new ()</h3> <pre class="programlisting"><a class="link" href="GtkSizeGroup.html" title="GtkSizeGroup"><span class="returnvalue">GtkSizeGroup</span></a> * gtk_size_group_new (<em class="parameter"><code><a class="link" href="GtkSizeGroup.html#GtkSizeGroupMode" title="enum GtkSizeGroupMode"><span class="type">GtkSizeGroupMode</span></a> mode</code></em>);</pre> <p>Create a new <a class="link" href="GtkSizeGroup.html" title="GtkSizeGroup"><span class="type">GtkSizeGroup</span></a>.</p> <div class="refsect3"> <a name="gtk-size-group-new.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody><tr> <td class="parameter_name"><p>mode</p></td> <td class="parameter_description"><p>the mode for the new size group.</p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> <div class="refsect3"> <a name="gtk-size-group-new.returns"></a><h4>Returns</h4> <p> a newly created <a class="link" href="GtkSizeGroup.html" title="GtkSizeGroup"><span class="type">GtkSizeGroup</span></a></p> </div> </div> <hr> <div class="refsect2"> <a name="gtk-size-group-set-mode"></a><h3>gtk_size_group_set_mode ()</h3> <pre class="programlisting"><span class="returnvalue">void</span> gtk_size_group_set_mode (<em class="parameter"><code><a class="link" href="GtkSizeGroup.html" title="GtkSizeGroup"><span class="type">GtkSizeGroup</span></a> *size_group</code></em>, <em class="parameter"><code><a class="link" href="GtkSizeGroup.html#GtkSizeGroupMode" title="enum GtkSizeGroupMode"><span class="type">GtkSizeGroupMode</span></a> mode</code></em>);</pre> <p>Sets the <a class="link" href="GtkSizeGroup.html#GtkSizeGroupMode" title="enum GtkSizeGroupMode"><span class="type">GtkSizeGroupMode</span></a> of the size group. The mode of the size group determines whether the widgets in the size group should all have the same horizontal requisition (<a class="link" href="GtkSizeGroup.html#GTK-SIZE-GROUP-HORIZONTAL:CAPS"><code class="literal">GTK_SIZE_GROUP_HORIZONTAL</code></a>) all have the same vertical requisition (<a class="link" href="GtkSizeGroup.html#GTK-SIZE-GROUP-VERTICAL:CAPS"><code class="literal">GTK_SIZE_GROUP_VERTICAL</code></a>), or should all have the same requisition in both directions (<a class="link" href="GtkSizeGroup.html#GTK-SIZE-GROUP-BOTH:CAPS"><code class="literal">GTK_SIZE_GROUP_BOTH</code></a>).</p> <div class="refsect3"> <a name="gtk-size-group-set-mode.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody> <tr> <td class="parameter_name"><p>size_group</p></td> <td class="parameter_description"><p>a <a class="link" href="GtkSizeGroup.html" title="GtkSizeGroup"><span class="type">GtkSizeGroup</span></a></p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>mode</p></td> <td class="parameter_description"><p>the mode to set for the size group.</p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> </div> <hr> <div class="refsect2"> <a name="gtk-size-group-get-mode"></a><h3>gtk_size_group_get_mode ()</h3> <pre class="programlisting"><a class="link" href="GtkSizeGroup.html#GtkSizeGroupMode" title="enum GtkSizeGroupMode"><span class="returnvalue">GtkSizeGroupMode</span></a> gtk_size_group_get_mode (<em class="parameter"><code><a class="link" href="GtkSizeGroup.html" title="GtkSizeGroup"><span class="type">GtkSizeGroup</span></a> *size_group</code></em>);</pre> <p>Gets the current mode of the size group. See <a class="link" href="GtkSizeGroup.html#gtk-size-group-set-mode" title="gtk_size_group_set_mode ()"><code class="function">gtk_size_group_set_mode()</code></a>.</p> <div class="refsect3"> <a name="gtk-size-group-get-mode.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody><tr> <td class="parameter_name"><p>size_group</p></td> <td class="parameter_description"><p>a <a class="link" href="GtkSizeGroup.html" title="GtkSizeGroup"><span class="type">GtkSizeGroup</span></a></p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> <div class="refsect3"> <a name="gtk-size-group-get-mode.returns"></a><h4>Returns</h4> <p> the current mode of the size group.</p> </div> </div> <hr> <div class="refsect2"> <a name="gtk-size-group-set-ignore-hidden"></a><h3>gtk_size_group_set_ignore_hidden ()</h3> <pre class="programlisting"><span class="returnvalue">void</span> gtk_size_group_set_ignore_hidden (<em class="parameter"><code><a class="link" href="GtkSizeGroup.html" title="GtkSizeGroup"><span class="type">GtkSizeGroup</span></a> *size_group</code></em>, <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> ignore_hidden</code></em>);</pre> <div class="warning"> <p><code class="literal">gtk_size_group_set_ignore_hidden</code> has been deprecated since version 3.22 and should not be used in newly-written code.</p> <p>Measuring the size of hidden widgets has not worked reliably for a long time. In most cases, they will report a size of 0 nowadays, and thus, their size will not affect the other size group members. In effect, size groups will always operate as if this property was <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a>. Use a <a class="link" href="GtkStack.html" title="GtkStack"><span class="type">GtkStack</span></a> instead to hide widgets while still having their size taken into account.</p> </div> <p>Sets whether unmapped widgets should be ignored when calculating the size.</p> <div class="refsect3"> <a name="gtk-size-group-set-ignore-hidden.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody> <tr> <td class="parameter_name"><p>size_group</p></td> <td class="parameter_description"><p>a <a class="link" href="GtkSizeGroup.html" title="GtkSizeGroup"><span class="type">GtkSizeGroup</span></a></p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>ignore_hidden</p></td> <td class="parameter_description"><p>whether unmapped widgets should be ignored when calculating the size</p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> <p class="since">Since: 2.8</p> </div> <hr> <div class="refsect2"> <a name="gtk-size-group-get-ignore-hidden"></a><h3>gtk_size_group_get_ignore_hidden ()</h3> <pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gtk_size_group_get_ignore_hidden (<em class="parameter"><code><a class="link" href="GtkSizeGroup.html" title="GtkSizeGroup"><span class="type">GtkSizeGroup</span></a> *size_group</code></em>);</pre> <div class="warning"> <p><code class="literal">gtk_size_group_get_ignore_hidden</code> has been deprecated since version 3.22 and should not be used in newly-written code.</p> <p>Measuring the size of hidden widgets has not worked reliably for a long time. In most cases, they will report a size of 0 nowadays, and thus, their size will not affect the other size group members. In effect, size groups will always operate as if this property was <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a>. Use a <a class="link" href="GtkStack.html" title="GtkStack"><span class="type">GtkStack</span></a> instead to hide widgets while still having their size taken into account.</p> </div> <p>Returns if invisible widgets are ignored when calculating the size.</p> <div class="refsect3"> <a name="gtk-size-group-get-ignore-hidden.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody><tr> <td class="parameter_name"><p>size_group</p></td> <td class="parameter_description"><p>a <a class="link" href="GtkSizeGroup.html" title="GtkSizeGroup"><span class="type">GtkSizeGroup</span></a></p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> <div class="refsect3"> <a name="gtk-size-group-get-ignore-hidden.returns"></a><h4>Returns</h4> <p> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if invisible widgets are ignored.</p> </div> <p class="since">Since: 2.8</p> </div> <hr> <div class="refsect2"> <a name="gtk-size-group-add-widget"></a><h3>gtk_size_group_add_widget ()</h3> <pre class="programlisting"><span class="returnvalue">void</span> gtk_size_group_add_widget (<em class="parameter"><code><a class="link" href="GtkSizeGroup.html" title="GtkSizeGroup"><span class="type">GtkSizeGroup</span></a> *size_group</code></em>, <em class="parameter"><code><a class="link" href="GtkWidget.html" title="GtkWidget"><span class="type">GtkWidget</span></a> *widget</code></em>);</pre> <p>Adds a widget to a <a class="link" href="GtkSizeGroup.html" title="GtkSizeGroup"><span class="type">GtkSizeGroup</span></a>. In the future, the requisition of the widget will be determined as the maximum of its requisition and the requisition of the other widgets in the size group. Whether this applies horizontally, vertically, or in both directions depends on the mode of the size group. See <a class="link" href="GtkSizeGroup.html#gtk-size-group-set-mode" title="gtk_size_group_set_mode ()"><code class="function">gtk_size_group_set_mode()</code></a>.</p> <p>When the widget is destroyed or no longer referenced elsewhere, it will be removed from the size group.</p> <div class="refsect3"> <a name="gtk-size-group-add-widget.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody> <tr> <td class="parameter_name"><p>size_group</p></td> <td class="parameter_description"><p>a <a class="link" href="GtkSizeGroup.html" title="GtkSizeGroup"><span class="type">GtkSizeGroup</span></a></p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>widget</p></td> <td class="parameter_description"><p>the <a class="link" href="GtkWidget.html" title="GtkWidget"><span class="type">GtkWidget</span></a> to add</p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> </div> <hr> <div class="refsect2"> <a name="gtk-size-group-remove-widget"></a><h3>gtk_size_group_remove_widget ()</h3> <pre class="programlisting"><span class="returnvalue">void</span> gtk_size_group_remove_widget (<em class="parameter"><code><a class="link" href="GtkSizeGroup.html" title="GtkSizeGroup"><span class="type">GtkSizeGroup</span></a> *size_group</code></em>, <em class="parameter"><code><a class="link" href="GtkWidget.html" title="GtkWidget"><span class="type">GtkWidget</span></a> *widget</code></em>);</pre> <p>Removes a widget from a <a class="link" href="GtkSizeGroup.html" title="GtkSizeGroup"><span class="type">GtkSizeGroup</span></a>.</p> <div class="refsect3"> <a name="gtk-size-group-remove-widget.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody> <tr> <td class="parameter_name"><p>size_group</p></td> <td class="parameter_description"><p>a <a class="link" href="GtkSizeGroup.html" title="GtkSizeGroup"><span class="type">GtkSizeGroup</span></a></p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>widget</p></td> <td class="parameter_description"><p>the <a class="link" href="GtkWidget.html" title="GtkWidget"><span class="type">GtkWidget</span></a> to remove</p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> </div> <hr> <div class="refsect2"> <a name="gtk-size-group-get-widgets"></a><h3>gtk_size_group_get_widgets ()</h3> <pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Singly-Linked-Lists.html#GSList"><span class="returnvalue">GSList</span></a> * gtk_size_group_get_widgets (<em class="parameter"><code><a class="link" href="GtkSizeGroup.html" title="GtkSizeGroup"><span class="type">GtkSizeGroup</span></a> *size_group</code></em>);</pre> <p>Returns the list of widgets associated with <em class="parameter"><code>size_group</code></em> .</p> <div class="refsect3"> <a name="gtk-size-group-get-widgets.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody><tr> <td class="parameter_name"><p>size_group</p></td> <td class="parameter_description"><p>a <a class="link" href="GtkSizeGroup.html" title="GtkSizeGroup"><span class="type">GtkSizeGroup</span></a></p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> <div class="refsect3"> <a name="gtk-size-group-get-widgets.returns"></a><h4>Returns</h4> <p>a <a href="/usr/share/gtk-doc/html/glib/glib-Singly-Linked-Lists.html#GSList"><span class="type">GSList</span></a> of widgets. The list is owned by GTK+ and should not be modified. </p> <p><span class="annotation">[<acronym title="Generics and defining elements of containers and arrays."><span class="acronym">element-type</span></acronym> GtkWidget][<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></p> </div> <p class="since">Since: 2.10</p> </div> </div> <div class="refsect1"> <a name="GtkSizeGroup.other_details"></a><h2>Types and Values</h2> <div class="refsect2"> <a name="GtkSizeGroup-struct"></a><h3>struct GtkSizeGroup</h3> <pre class="programlisting">struct GtkSizeGroup;</pre> </div> <hr> <div class="refsect2"> <a name="GtkSizeGroupMode"></a><h3>enum GtkSizeGroupMode</h3> <p>The mode of the size group determines the directions in which the size group affects the requested sizes of its component widgets.</p> <div class="refsect3"> <a name="GtkSizeGroupMode.members"></a><h4>Members</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="300px" class="enum_members_name"> <col class="enum_members_description"> <col width="200px" class="enum_members_annotations"> </colgroup> <tbody> <tr> <td class="enum_member_name"><p><a name="GTK-SIZE-GROUP-NONE:CAPS"></a>GTK_SIZE_GROUP_NONE</p></td> <td class="enum_member_description"> <p>group has no effect</p> </td> <td class="enum_member_annotations"> </td> </tr> <tr> <td class="enum_member_name"><p><a name="GTK-SIZE-GROUP-HORIZONTAL:CAPS"></a>GTK_SIZE_GROUP_HORIZONTAL</p></td> <td class="enum_member_description"> <p>group affects horizontal requisition</p> </td> <td class="enum_member_annotations"> </td> </tr> <tr> <td class="enum_member_name"><p><a name="GTK-SIZE-GROUP-VERTICAL:CAPS"></a>GTK_SIZE_GROUP_VERTICAL</p></td> <td class="enum_member_description"> <p>group affects vertical requisition</p> </td> <td class="enum_member_annotations"> </td> </tr> <tr> <td class="enum_member_name"><p><a name="GTK-SIZE-GROUP-BOTH:CAPS"></a>GTK_SIZE_GROUP_BOTH</p></td> <td class="enum_member_description"> <p>group affects both horizontal and vertical requisition</p> </td> <td class="enum_member_annotations"> </td> </tr> </tbody> </table></div> </div> </div> </div> <div class="refsect1"> <a name="GtkSizeGroup.property-details"></a><h2>Property Details</h2> <div class="refsect2"> <a name="GtkSizeGroup--ignore-hidden"></a><h3>The <code class="literal">“ignore-hidden”</code> property</h3> <pre class="programlisting"> “ignore-hidden” <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre> <p>If <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a>, unmapped widgets are ignored when determining the size of the group.</p> <div class="warning"> <p><code class="literal">GtkSizeGroup:ignore-hidden</code> has been deprecated since version 3.22 and should not be used in newly-written code.</p> <p>Measuring the size of hidden widgets has not worked reliably for a long time. In most cases, they will report a size of 0 nowadays, and thus, their size will not affect the other size group members. In effect, size groups will always operate as if this property was <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a>. Use a <a class="link" href="GtkStack.html" title="GtkStack"><span class="type">GtkStack</span></a> instead to hide widgets while still having their size taken into account.</p> </div> <p>Owner: GtkSizeGroup</p> <p>Flags: Read / Write</p> <p>Default value: FALSE</p> <p class="since">Since: 2.8</p> </div> <hr> <div class="refsect2"> <a name="GtkSizeGroup--mode"></a><h3>The <code class="literal">“mode”</code> property</h3> <pre class="programlisting"> “mode” <a class="link" href="GtkSizeGroup.html#GtkSizeGroupMode" title="enum GtkSizeGroupMode"><span class="type">GtkSizeGroupMode</span></a></pre> <p>The directions in which the size group affects the requested sizes of its component widgets.</p> <p>Owner: GtkSizeGroup</p> <p>Flags: Read / Write</p> <p>Default value: GTK_SIZE_GROUP_HORIZONTAL</p> </div> </div> </div> <div class="footer"> <hr>Generated by GTK-Doc V1.32</div> </body> </html>