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<a href="#GtkAspectFrame.description" class="shortcut">Description</a>
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<a href="#GtkAspectFrame.properties" class="shortcut">Properties</a>
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<div class="refentry" title="GtkAspectFrame">
<a name="GtkAspectFrame"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="GtkAspectFrame.top_of_page"></a>GtkAspectFrame</span></h2>
<p>GtkAspectFrame — A frame that constrains its child to a particular aspect ratio</p>
</td>
<td valign="top" align="right"></td>
</tr></table></div>
<div class="refsynopsisdiv" title="Synopsis">
<a name="GtkAspectFrame.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">
#include <gtk/gtk.h>
<a class="link" href="GtkAspectFrame.html#GtkAspectFrame-struct" title="GtkAspectFrame">GtkAspectFrame</a>;
<a class="link" href="GtkWidget.html" title="GtkWidget">GtkWidget</a>* <a class="link" href="GtkAspectFrame.html#gtk-aspect-frame-new" title="gtk_aspect_frame_new ()">gtk_aspect_frame_new</a> (const <a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"
>gchar</a> *label,
<a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat"
>gfloat</a> xalign,
<a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat"
>gfloat</a> yalign,
<a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat"
>gfloat</a> ratio,
<a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"
>gboolean</a> obey_child);
void <a class="link" href="GtkAspectFrame.html#gtk-aspect-frame-set" title="gtk_aspect_frame_set ()">gtk_aspect_frame_set</a> (<a class="link" href="GtkAspectFrame.html" title="GtkAspectFrame">GtkAspectFrame</a> *aspect_frame,
<a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat"
>gfloat</a> xalign,
<a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat"
>gfloat</a> yalign,
<a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat"
>gfloat</a> ratio,
<a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"
>gboolean</a> obey_child);
</pre>
</div>
<div class="refsect1" title="Object Hierarchy">
<a name="GtkAspectFrame.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="synopsis">
<a
href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GObject"
>GObject</a>
+----<a
href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GInitiallyUnowned"
>GInitiallyUnowned</a>
+----<a class="link" href="GtkObject.html" title="GtkObject">GtkObject</a>
+----<a class="link" href="GtkWidget.html" title="GtkWidget">GtkWidget</a>
+----<a class="link" href="GtkContainer.html" title="GtkContainer">GtkContainer</a>
+----<a class="link" href="GtkBin.html" title="GtkBin">GtkBin</a>
+----<a class="link" href="GtkFrame.html" title="GtkFrame">GtkFrame</a>
+----GtkAspectFrame
</pre>
</div>
<div class="refsect1" title="Implemented Interfaces">
<a name="GtkAspectFrame.implemented-interfaces"></a><h2>Implemented Interfaces</h2>
<p>
GtkAspectFrame implements
AtkImplementorIface and <a class="link" href="gtk-gtkbuildable.html#GtkBuildable">GtkBuildable</a>.</p>
</div>
<div class="refsect1" title="Properties">
<a name="GtkAspectFrame.properties"></a><h2>Properties</h2>
<pre class="synopsis">
"<a class="link" href="GtkAspectFrame.html#GtkAspectFrame--obey-child" title='The "obey-child" property'>obey-child</a>" <a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"
>gboolean</a> : Read / Write
"<a class="link" href="GtkAspectFrame.html#GtkAspectFrame--ratio" title='The "ratio" property'>ratio</a>" <a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat"
>gfloat</a> : Read / Write
"<a class="link" href="GtkAspectFrame.html#GtkAspectFrame--xalign" title='The "xalign" property'>xalign</a>" <a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat"
>gfloat</a> : Read / Write
"<a class="link" href="GtkAspectFrame.html#GtkAspectFrame--yalign" title='The "yalign" property'>yalign</a>" <a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat"
>gfloat</a> : Read / Write
</pre>
</div>
<div class="refsect1" title="Description">
<a name="GtkAspectFrame.description"></a><h2>Description</h2>
<p>
The <a class="link" href="GtkAspectFrame.html" title="GtkAspectFrame"><span class="type">GtkAspectFrame</span></a> is useful when you want
pack a widget so that it can resize but always retains
the same aspect ratio. For instance, one might be
drawing a small preview of a larger image. <a class="link" href="GtkAspectFrame.html" title="GtkAspectFrame"><span class="type">GtkAspectFrame</span></a>
derives from <a class="link" href="GtkFrame.html" title="GtkFrame"><span class="type">GtkFrame</span></a>, so it can draw a label and
a frame around the child. The frame will be
"shrink-wrapped" to the size of the child.
</p>
</div>
<div class="refsect1" title="Details">
<a name="GtkAspectFrame.details"></a><h2>Details</h2>
<div class="refsect2" title="GtkAspectFrame">
<a name="GtkAspectFrame-struct"></a><h3>GtkAspectFrame</h3>
<pre class="programlisting">typedef struct _GtkAspectFrame GtkAspectFrame;</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2" title="gtk_aspect_frame_new ()">
<a name="gtk-aspect-frame-new"></a><h3>gtk_aspect_frame_new ()</h3>
<pre class="programlisting"><a class="link" href="GtkWidget.html" title="GtkWidget">GtkWidget</a>* gtk_aspect_frame_new (const <a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"
>gchar</a> *label,
<a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat"
>gfloat</a> xalign,
<a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat"
>gfloat</a> yalign,
<a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat"
>gfloat</a> ratio,
<a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"
>gboolean</a> obey_child);</pre>
<p>
Create a new <a class="link" href="GtkAspectFrame.html" title="GtkAspectFrame"><span class="type">GtkAspectFrame</span></a>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>label</code></em> :</span></p></td>
<td>Label text.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>xalign</code></em> :</span></p></td>
<td>Horizontal alignment of the child within the allocation of
the <a class="link" href="GtkAspectFrame.html" title="GtkAspectFrame"><span class="type">GtkAspectFrame</span></a>. This ranges from 0.0 (left aligned)
to 1.0 (right aligned)
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>yalign</code></em> :</span></p></td>
<td>Vertical alignment of the child within the allocation of
the <a class="link" href="GtkAspectFrame.html" title="GtkAspectFrame"><span class="type">GtkAspectFrame</span></a>. This ranges from 0.0 (left aligned)
to 1.0 (right aligned)
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>ratio</code></em> :</span></p></td>
<td>The desired aspect ratio.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>obey_child</code></em> :</span></p></td>
<td>If <a
href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE--CAPS"
><code class="literal">TRUE</code></a>, <em class="parameter"><code>ratio</code></em> is ignored, and the aspect
ratio is taken from the requistion of the child.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the new <a class="link" href="GtkAspectFrame.html" title="GtkAspectFrame"><span class="type">GtkAspectFrame</span></a>.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="gtk_aspect_frame_set ()">
<a name="gtk-aspect-frame-set"></a><h3>gtk_aspect_frame_set ()</h3>
<pre class="programlisting">void gtk_aspect_frame_set (<a class="link" href="GtkAspectFrame.html" title="GtkAspectFrame">GtkAspectFrame</a> *aspect_frame,
<a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat"
>gfloat</a> xalign,
<a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat"
>gfloat</a> yalign,
<a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat"
>gfloat</a> ratio,
<a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"
>gboolean</a> obey_child);</pre>
<p>
Set parameters for an existing <a class="link" href="GtkAspectFrame.html" title="GtkAspectFrame"><span class="type">GtkAspectFrame</span></a>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>aspect_frame</code></em> :</span></p></td>
<td>a <a class="link" href="GtkAspectFrame.html" title="GtkAspectFrame"><span class="type">GtkAspectFrame</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>xalign</code></em> :</span></p></td>
<td>Horizontal alignment of the child within the allocation of
the <a class="link" href="GtkAspectFrame.html" title="GtkAspectFrame"><span class="type">GtkAspectFrame</span></a>. This ranges from 0.0 (left aligned)
to 1.0 (right aligned)
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>yalign</code></em> :</span></p></td>
<td>Vertical alignment of the child within the allocation of
the <a class="link" href="GtkAspectFrame.html" title="GtkAspectFrame"><span class="type">GtkAspectFrame</span></a>. This ranges from 0.0 (left aligned)
to 1.0 (right aligned)
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>ratio</code></em> :</span></p></td>
<td>The desired aspect ratio.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>obey_child</code></em> :</span></p></td>
<td>If <a
href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE--CAPS"
><code class="literal">TRUE</code></a>, <em class="parameter"><code>ratio</code></em> is ignored, and the aspect
ratio is taken from the requistion of the child.
</td>
</tr>
</tbody>
</table></div>
</div>
</div>
<div class="refsect1" title="Property Details">
<a name="GtkAspectFrame.property-details"></a><h2>Property Details</h2>
<div class="refsect2" title='The "obey-child" property'>
<a name="GtkAspectFrame--obey-child"></a><h3>The <code class="literal">"obey-child"</code> property</h3>
<pre class="programlisting"> "obey-child" <a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"
>gboolean</a> : Read / Write</pre>
<p>Force aspect ratio to match that of the frame's child.</p>
<p>Default value: TRUE</p>
</div>
<hr>
<div class="refsect2" title='The "ratio" property'>
<a name="GtkAspectFrame--ratio"></a><h3>The <code class="literal">"ratio"</code> property</h3>
<pre class="programlisting"> "ratio" <a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat"
>gfloat</a> : Read / Write</pre>
<p>Aspect ratio if obey_child is FALSE.</p>
<p>Allowed values: [0.0001,10000]</p>
<p>Default value: 1</p>
</div>
<hr>
<div class="refsect2" title='The "xalign" property'>
<a name="GtkAspectFrame--xalign"></a><h3>The <code class="literal">"xalign"</code> property</h3>
<pre class="programlisting"> "xalign" <a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat"
>gfloat</a> : Read / Write</pre>
<p>X alignment of the child.</p>
<p>Allowed values: [0,1]</p>
<p>Default value: 0.5</p>
</div>
<hr>
<div class="refsect2" title='The "yalign" property'>
<a name="GtkAspectFrame--yalign"></a><h3>The <code class="literal">"yalign"</code> property</h3>
<pre class="programlisting"> "yalign" <a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat"
>gfloat</a> : Read / Write</pre>
<p>Y alignment of the child.</p>
<p>Allowed values: [0,1]</p>
<p>Default value: 0.5</p>
</div>
</div>
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