336 lines
16 KiB
HTML
336 lines
16 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
|
||
<html>
|
||
<head>
|
||
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
|
||
<title>GtkAspectFrame: GTK+ 3 Reference Manual</title>
|
||
<meta name="generator" content="DocBook XSL Stylesheets Vsnapshot">
|
||
<link rel="home" href="index.html" title="GTK+ 3 Reference Manual">
|
||
<link rel="up" href="LayoutContainers.html" title="Layout Containers">
|
||
<link rel="prev" href="gtk3-Orientable.html" title="GtkOrientable">
|
||
<link rel="next" href="GtkFixed.html" title="GtkFixed">
|
||
<meta name="generator" content="GTK-Doc V1.33.1 (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="#GtkAspectFrame.description" class="shortcut">Description</a></span><span id="nav_hierarchy"> <span class="dim">|</span>
|
||
<a href="#GtkAspectFrame.object-hierarchy" class="shortcut">Object Hierarchy</a></span><span id="nav_interfaces"> <span class="dim">|</span>
|
||
<a href="#GtkAspectFrame.implemented-interfaces" class="shortcut">Implemented Interfaces</a></span><span id="nav_properties"> <span class="dim">|</span>
|
||
<a href="#GtkAspectFrame.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="LayoutContainers.html"><img src="up.png" width="16" height="16" border="0" alt="Up"></a></td>
|
||
<td><a accesskey="p" href="gtk3-Orientable.html"><img src="left.png" width="16" height="16" border="0" alt="Prev"></a></td>
|
||
<td><a accesskey="n" href="GtkFixed.html"><img src="right.png" width="16" height="16" border="0" alt="Next"></a></td>
|
||
</tr></table>
|
||
<div class="refentry">
|
||
<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 class="gallery_image" valign="top" align="right"></td>
|
||
</tr></table></div>
|
||
<div class="refsect1">
|
||
<a name="GtkAspectFrame.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="GtkWidget.html" title="GtkWidget"><span class="returnvalue">GtkWidget</span></a> *
|
||
</td>
|
||
<td class="function_name">
|
||
<a class="link" href="GtkAspectFrame.html#gtk-aspect-frame-new" title="gtk_aspect_frame_new ()">gtk_aspect_frame_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="GtkAspectFrame.html#gtk-aspect-frame-set" title="gtk_aspect_frame_set ()">gtk_aspect_frame_set</a> <span class="c_punctuation">()</span>
|
||
</td>
|
||
</tr>
|
||
</tbody>
|
||
</table></div>
|
||
</div>
|
||
<div class="refsect1">
|
||
<a name="GtkAspectFrame.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"><span class="type">gboolean</span></td>
|
||
<td class="property_name"><a class="link" href="GtkAspectFrame.html#GtkAspectFrame--obey-child" title="The “obey-child” property">obey-child</a></td>
|
||
<td class="property_flags">Read / Write</td>
|
||
</tr>
|
||
<tr>
|
||
<td class="property_type"><span class="type">float</span></td>
|
||
<td class="property_name"><a class="link" href="GtkAspectFrame.html#GtkAspectFrame--ratio" title="The “ratio” property">ratio</a></td>
|
||
<td class="property_flags">Read / Write</td>
|
||
</tr>
|
||
<tr>
|
||
<td class="property_type"><span class="type">float</span></td>
|
||
<td class="property_name"><a class="link" href="GtkAspectFrame.html#GtkAspectFrame--xalign" title="The “xalign” property">xalign</a></td>
|
||
<td class="property_flags">Read / Write</td>
|
||
</tr>
|
||
<tr>
|
||
<td class="property_type"><span class="type">float</span></td>
|
||
<td class="property_name"><a class="link" href="GtkAspectFrame.html#GtkAspectFrame--yalign" title="The “yalign” property">yalign</a></td>
|
||
<td class="property_flags">Read / Write</td>
|
||
</tr>
|
||
</tbody>
|
||
</table></div>
|
||
</div>
|
||
<div class="refsect1">
|
||
<a name="GtkAspectFrame.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="GtkAspectFrame.html#GtkAspectFrame-struct" title="struct GtkAspectFrame">GtkAspectFrame</a></td>
|
||
</tr>
|
||
<tr>
|
||
<td class="datatype_keyword">struct</td>
|
||
<td class="function_name"><a class="link" href="GtkAspectFrame.html#GtkAspectFrameClass" title="struct GtkAspectFrameClass">GtkAspectFrameClass</a></td>
|
||
</tr>
|
||
</tbody>
|
||
</table></div>
|
||
</div>
|
||
<div class="refsect1">
|
||
<a name="GtkAspectFrame.object-hierarchy"></a><h2>Object Hierarchy</h2>
|
||
<pre class="screen"> GObject
|
||
<span class="lineart">╰──</span> GInitiallyUnowned
|
||
<span class="lineart">╰──</span> <a class="link" href="GtkWidget.html" title="GtkWidget">GtkWidget</a>
|
||
<span class="lineart">╰──</span> <a class="link" href="GtkContainer.html" title="GtkContainer">GtkContainer</a>
|
||
<span class="lineart">╰──</span> <a class="link" href="GtkBin.html" title="GtkBin">GtkBin</a>
|
||
<span class="lineart">╰──</span> <a class="link" href="GtkFrame.html" title="GtkFrame">GtkFrame</a>
|
||
<span class="lineart">╰──</span> GtkAspectFrame
|
||
</pre>
|
||
</div>
|
||
<div class="refsect1">
|
||
<a name="GtkAspectFrame.implemented-interfaces"></a><h2>Implemented Interfaces</h2>
|
||
<p>
|
||
GtkAspectFrame implements
|
||
AtkImplementorIface and <a class="link" href="GtkBuildable.html" title="GtkBuildable">GtkBuildable</a>.</p>
|
||
</div>
|
||
<div class="refsect1">
|
||
<a name="GtkAspectFrame.includes"></a><h2>Includes</h2>
|
||
<pre class="synopsis">#include <gtk/gtk.h>
|
||
</pre>
|
||
</div>
|
||
<div class="refsect1">
|
||
<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 class="refsect2">
|
||
<a name="id-1.3.7.19.9.3"></a><h3>CSS nodes</h3>
|
||
<p>GtkAspectFrame uses a CSS node with name frame.</p>
|
||
</div>
|
||
</div>
|
||
<div class="refsect1">
|
||
<a name="GtkAspectFrame.functions_details"></a><h2>Functions</h2>
|
||
<div class="refsect2">
|
||
<a name="gtk-aspect-frame-new"></a><h3>gtk_aspect_frame_new ()</h3>
|
||
<pre class="programlisting"><a class="link" href="GtkWidget.html" title="GtkWidget"><span class="returnvalue">GtkWidget</span></a> *
|
||
gtk_aspect_frame_new (<em class="parameter"><code>const <span class="type">gchar</span> *label</code></em>,
|
||
<em class="parameter"><code><span class="type">gfloat</span> xalign</code></em>,
|
||
<em class="parameter"><code><span class="type">gfloat</span> yalign</code></em>,
|
||
<em class="parameter"><code><span class="type">gfloat</span> ratio</code></em>,
|
||
<em class="parameter"><code><span class="type">gboolean</span> obey_child</code></em>);</pre>
|
||
<p>Create a new <a class="link" href="GtkAspectFrame.html" title="GtkAspectFrame"><span class="type">GtkAspectFrame</span></a>.</p>
|
||
<div class="refsect3">
|
||
<a name="gtk-aspect-frame-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>label</p></td>
|
||
<td class="parameter_description"><p>Label text. </p></td>
|
||
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
|
||
</tr>
|
||
<tr>
|
||
<td class="parameter_name"><p>xalign</p></td>
|
||
<td class="parameter_description"><p>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)</p></td>
|
||
<td class="parameter_annotations"> </td>
|
||
</tr>
|
||
<tr>
|
||
<td class="parameter_name"><p>yalign</p></td>
|
||
<td class="parameter_description"><p>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 (top aligned)
|
||
to 1.0 (bottom aligned)</p></td>
|
||
<td class="parameter_annotations"> </td>
|
||
</tr>
|
||
<tr>
|
||
<td class="parameter_name"><p>ratio</p></td>
|
||
<td class="parameter_description"><p>The desired aspect ratio.</p></td>
|
||
<td class="parameter_annotations"> </td>
|
||
</tr>
|
||
<tr>
|
||
<td class="parameter_name"><p>obey_child</p></td>
|
||
<td class="parameter_description"><p>If <code class="literal">TRUE</code>, <em class="parameter"><code>ratio</code></em>
|
||
is ignored, and the aspect
|
||
ratio is taken from the requistion of the child.</p></td>
|
||
<td class="parameter_annotations"> </td>
|
||
</tr>
|
||
</tbody>
|
||
</table></div>
|
||
</div>
|
||
<div class="refsect3">
|
||
<a name="gtk-aspect-frame-new.returns"></a><h4>Returns</h4>
|
||
<p> the new <a class="link" href="GtkAspectFrame.html" title="GtkAspectFrame"><span class="type">GtkAspectFrame</span></a>.</p>
|
||
</div>
|
||
</div>
|
||
<hr>
|
||
<div class="refsect2">
|
||
<a name="gtk-aspect-frame-set"></a><h3>gtk_aspect_frame_set ()</h3>
|
||
<pre class="programlisting"><span class="returnvalue">void</span>
|
||
gtk_aspect_frame_set (<em class="parameter"><code><a class="link" href="GtkAspectFrame.html" title="GtkAspectFrame"><span class="type">GtkAspectFrame</span></a> *aspect_frame</code></em>,
|
||
<em class="parameter"><code><span class="type">gfloat</span> xalign</code></em>,
|
||
<em class="parameter"><code><span class="type">gfloat</span> yalign</code></em>,
|
||
<em class="parameter"><code><span class="type">gfloat</span> ratio</code></em>,
|
||
<em class="parameter"><code><span class="type">gboolean</span> obey_child</code></em>);</pre>
|
||
<p>Set parameters for an existing <a class="link" href="GtkAspectFrame.html" title="GtkAspectFrame"><span class="type">GtkAspectFrame</span></a>.</p>
|
||
<div class="refsect3">
|
||
<a name="gtk-aspect-frame-set.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>aspect_frame</p></td>
|
||
<td class="parameter_description"><p>a <a class="link" href="GtkAspectFrame.html" title="GtkAspectFrame"><span class="type">GtkAspectFrame</span></a></p></td>
|
||
<td class="parameter_annotations"> </td>
|
||
</tr>
|
||
<tr>
|
||
<td class="parameter_name"><p>xalign</p></td>
|
||
<td class="parameter_description"><p>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)</p></td>
|
||
<td class="parameter_annotations"> </td>
|
||
</tr>
|
||
<tr>
|
||
<td class="parameter_name"><p>yalign</p></td>
|
||
<td class="parameter_description"><p>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 (top aligned)
|
||
to 1.0 (bottom aligned)</p></td>
|
||
<td class="parameter_annotations"> </td>
|
||
</tr>
|
||
<tr>
|
||
<td class="parameter_name"><p>ratio</p></td>
|
||
<td class="parameter_description"><p>The desired aspect ratio.</p></td>
|
||
<td class="parameter_annotations"> </td>
|
||
</tr>
|
||
<tr>
|
||
<td class="parameter_name"><p>obey_child</p></td>
|
||
<td class="parameter_description"><p>If <code class="literal">TRUE</code>, <em class="parameter"><code>ratio</code></em>
|
||
is ignored, and the aspect
|
||
ratio is taken from the requistion of the child.</p></td>
|
||
<td class="parameter_annotations"> </td>
|
||
</tr>
|
||
</tbody>
|
||
</table></div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<div class="refsect1">
|
||
<a name="GtkAspectFrame.other_details"></a><h2>Types and Values</h2>
|
||
<div class="refsect2">
|
||
<a name="GtkAspectFrame-struct"></a><h3>struct GtkAspectFrame</h3>
|
||
<pre class="programlisting">struct GtkAspectFrame;</pre>
|
||
</div>
|
||
<hr>
|
||
<div class="refsect2">
|
||
<a name="GtkAspectFrameClass"></a><h3>struct GtkAspectFrameClass</h3>
|
||
<pre class="programlisting">struct GtkAspectFrameClass {
|
||
GtkFrameClass parent_class;
|
||
};
|
||
</pre>
|
||
<div class="refsect3">
|
||
<a name="GtkAspectFrameClass.members"></a><h4>Members</h4>
|
||
<div class="informaltable"><table class="informaltable" width="100%" border="0">
|
||
<colgroup>
|
||
<col width="300px" class="struct_members_name">
|
||
<col class="struct_members_description">
|
||
<col width="200px" class="struct_members_annotations">
|
||
</colgroup>
|
||
<tbody></tbody>
|
||
</table></div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<div class="refsect1">
|
||
<a name="GtkAspectFrame.property-details"></a><h2>Property Details</h2>
|
||
<div class="refsect2">
|
||
<a name="GtkAspectFrame--obey-child"></a><h3>The <code class="literal">“obey-child”</code> property</h3>
|
||
<pre class="programlisting"> “obey-child” <span class="type">gboolean</span></pre>
|
||
<p>Force aspect ratio to match that of the frame's child.</p>
|
||
<p>Owner: GtkAspectFrame</p>
|
||
<p>Flags: Read / Write</p>
|
||
<p>Default value: TRUE</p>
|
||
</div>
|
||
<hr>
|
||
<div class="refsect2">
|
||
<a name="GtkAspectFrame--ratio"></a><h3>The <code class="literal">“ratio”</code> property</h3>
|
||
<pre class="programlisting"> “ratio” <span class="type">float</span></pre>
|
||
<p>Aspect ratio if obey_child is FALSE.</p>
|
||
<p>Owner: GtkAspectFrame</p>
|
||
<p>Flags: Read / Write</p>
|
||
<p>Allowed values: [0.0001,10000]</p>
|
||
<p>Default value: 1</p>
|
||
</div>
|
||
<hr>
|
||
<div class="refsect2">
|
||
<a name="GtkAspectFrame--xalign"></a><h3>The <code class="literal">“xalign”</code> property</h3>
|
||
<pre class="programlisting"> “xalign” <span class="type">float</span></pre>
|
||
<p>X alignment of the child.</p>
|
||
<p>Owner: GtkAspectFrame</p>
|
||
<p>Flags: Read / Write</p>
|
||
<p>Allowed values: [0,1]</p>
|
||
<p>Default value: 0.5</p>
|
||
</div>
|
||
<hr>
|
||
<div class="refsect2">
|
||
<a name="GtkAspectFrame--yalign"></a><h3>The <code class="literal">“yalign”</code> property</h3>
|
||
<pre class="programlisting"> “yalign” <span class="type">float</span></pre>
|
||
<p>Y alignment of the child.</p>
|
||
<p>Owner: GtkAspectFrame</p>
|
||
<p>Flags: Read / Write</p>
|
||
<p>Allowed values: [0,1]</p>
|
||
<p>Default value: 0.5</p>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<div class="footer">
|
||
<hr>Generated by GTK-Doc V1.33.1</div>
|
||
</body>
|
||
</html> |