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gtk3/docs/reference/gtk/html/GtkFixed.html
Simon McVittie dd4fa2d3c1 New upstream version 3.24.28
2021-04-15 09:52:10 +01:00

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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>GtkFixed: GTK+ 3 Reference Manual</title>
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<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="#GtkFixed.description" class="shortcut">Description</a></span><span id="nav_hierarchy">  <span class="dim">|</span> 
<a href="#GtkFixed.object-hierarchy" class="shortcut">Object Hierarchy</a></span><span id="nav_interfaces">  <span class="dim">|</span> 
<a href="#GtkFixed.implemented-interfaces" class="shortcut">Implemented Interfaces</a></span><span id="nav_child_properties">  <span class="dim">|</span> 
<a href="#GtkFixed.child-properties" class="shortcut">Child Properties</a></span>
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<td><a accesskey="h" href="index.html"><img src="home.png" width="16" height="16" border="0" alt="Home"></a></td>
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<div class="refentry">
<a name="GtkFixed"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="GtkFixed.top_of_page"></a>GtkFixed</span></h2>
<p>GtkFixed — A container which allows you to position
widgets at fixed coordinates</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="GtkFixed.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="GtkFixed.html#gtk-fixed-new" title="gtk_fixed_new ()">gtk_fixed_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="GtkFixed.html#gtk-fixed-put" title="gtk_fixed_put ()">gtk_fixed_put</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="GtkFixed.html#gtk-fixed-move" title="gtk_fixed_move ()">gtk_fixed_move</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="GtkFixed.child-properties"></a><h2>Child Properties</h2>
<div class="informaltable"><table class="informaltable" border="0">
<colgroup>
<col width="150px" class="child_properties_type">
<col width="300px" class="child_properties_name">
<col width="200px" class="child_properties_flags">
</colgroup>
<tbody>
<tr>
<td class="property_type"><span class="type">int</span></td>
<td class="property_name"><a class="link" href="GtkFixed.html#GtkFixed--c-x" title="The “x” child property">x</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><span class="type">int</span></td>
<td class="property_name"><a class="link" href="GtkFixed.html#GtkFixed--c-y" title="The “y” child property">y</a></td>
<td class="property_flags">Read / Write</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="GtkFixed.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="GtkFixed.html#GtkFixed-struct" title="struct GtkFixed">GtkFixed</a></td>
</tr></tbody>
</table></div>
</div>
<div class="refsect1">
<a name="GtkFixed.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> GtkFixed
</pre>
</div>
<div class="refsect1">
<a name="GtkFixed.implemented-interfaces"></a><h2>Implemented Interfaces</h2>
<p>
GtkFixed implements
AtkImplementorIface and <a class="link" href="GtkBuildable.html" title="GtkBuildable">GtkBuildable</a>.</p>
</div>
<div class="refsect1">
<a name="GtkFixed.includes"></a><h2>Includes</h2>
<pre class="synopsis">#include &lt;gtk/gtk.h&gt;
</pre>
</div>
<div class="refsect1">
<a name="GtkFixed.description"></a><h2>Description</h2>
<p>The <a class="link" href="GtkFixed.html" title="GtkFixed"><span class="type">GtkFixed</span></a> widget is a container which can place child widgets
at fixed positions and with fixed sizes, given in pixels. <a class="link" href="GtkFixed.html" title="GtkFixed"><span class="type">GtkFixed</span></a>
performs no automatic layout management.</p>
<p>For most applications, you should not use this container! It keeps
you from having to learn about the other GTK+ containers, but it
results in broken applications. With <a class="link" href="GtkFixed.html" title="GtkFixed"><span class="type">GtkFixed</span></a>, the following
things will result in truncated text, overlapping widgets, and
other display bugs:</p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem"><p>Themes, which may change widget sizes.</p></li>
<li class="listitem"><p>Fonts other than the one you used to write the app will of course
change the size of widgets containing text; keep in mind that
users may use a larger font because of difficulty reading the
default, or they may be using a different OS that provides different fonts.</p></li>
<li class="listitem"><p>Translation of text into other languages changes its size. Also,
display of non-English text will use a different font in many
cases.</p></li>
</ul></div>
<p>In addition, <a class="link" href="GtkFixed.html" title="GtkFixed"><span class="type">GtkFixed</span></a> does not pay attention to text direction and thus may
produce unwanted results if your app is run under right-to-left languages
such as Hebrew or Arabic. That is: normally GTK+ will order containers
appropriately for the text direction, e.g. to put labels to the right of the
thing they label when using an RTL language, but it can’t do that with
<a class="link" href="GtkFixed.html" title="GtkFixed"><span class="type">GtkFixed</span></a>. So if you need to reorder widgets depending on the text direction,
you would need to manually detect it and adjust child positions accordingly.</p>
<p>Finally, fixed positioning makes it kind of annoying to add/remove
GUI elements, since you have to reposition all the other
elements. This is a long-term maintenance problem for your
application.</p>
<p>If you know none of these things are an issue for your application,
and prefer the simplicity of <a class="link" href="GtkFixed.html" title="GtkFixed"><span class="type">GtkFixed</span></a>, by all means use the
widget. But you should be aware of the tradeoffs.</p>
<p>See also <a class="link" href="GtkLayout.html" title="GtkLayout"><span class="type">GtkLayout</span></a>, which shares the ability to perform fixed positioning
of child widgets and additionally adds custom drawing and scrollability.</p>
</div>
<div class="refsect1">
<a name="GtkFixed.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="gtk-fixed-new"></a><h3>gtk_fixed_new ()</h3>
<pre class="programlisting"><a class="link" href="GtkWidget.html" title="GtkWidget"><span class="returnvalue">GtkWidget</span></a> *
gtk_fixed_new (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>Creates a new <a class="link" href="GtkFixed.html" title="GtkFixed"><span class="type">GtkFixed</span></a>.</p>
<div class="refsect3">
<a name="gtk-fixed-new.returns"></a><h4>Returns</h4>
<p> a new <a class="link" href="GtkFixed.html" title="GtkFixed"><span class="type">GtkFixed</span></a>.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-fixed-put"></a><h3>gtk_fixed_put ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gtk_fixed_put (<em class="parameter"><code><a class="link" href="GtkFixed.html" title="GtkFixed"><span class="type">GtkFixed</span></a> *fixed</code></em>,
<em class="parameter"><code><a class="link" href="GtkWidget.html" title="GtkWidget"><span class="type">GtkWidget</span></a> *widget</code></em>,
<em class="parameter"><code><span class="type">gint</span> x</code></em>,
<em class="parameter"><code><span class="type">gint</span> y</code></em>);</pre>
<p>Adds a widget to a <a class="link" href="GtkFixed.html" title="GtkFixed"><span class="type">GtkFixed</span></a> container at the given position.</p>
<div class="refsect3">
<a name="gtk-fixed-put.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>fixed</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkFixed.html" title="GtkFixed"><span class="type">GtkFixed</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 widget to add.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>x</p></td>
<td class="parameter_description"><p>the horizontal position to place the widget at.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>y</p></td>
<td class="parameter_description"><p>the vertical position to place the widget at.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-fixed-move"></a><h3>gtk_fixed_move ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gtk_fixed_move (<em class="parameter"><code><a class="link" href="GtkFixed.html" title="GtkFixed"><span class="type">GtkFixed</span></a> *fixed</code></em>,
<em class="parameter"><code><a class="link" href="GtkWidget.html" title="GtkWidget"><span class="type">GtkWidget</span></a> *widget</code></em>,
<em class="parameter"><code><span class="type">gint</span> x</code></em>,
<em class="parameter"><code><span class="type">gint</span> y</code></em>);</pre>
<p>Moves a child of a <a class="link" href="GtkFixed.html" title="GtkFixed"><span class="type">GtkFixed</span></a> container to the given position.</p>
<div class="refsect3">
<a name="gtk-fixed-move.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>fixed</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkFixed.html" title="GtkFixed"><span class="type">GtkFixed</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 child widget.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>x</p></td>
<td class="parameter_description"><p>the horizontal position to move the widget to.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>y</p></td>
<td class="parameter_description"><p>the vertical position to move the widget to.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
<div class="refsect1">
<a name="GtkFixed.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GtkFixed-struct"></a><h3>struct GtkFixed</h3>
<pre class="programlisting">struct GtkFixed;</pre>
</div>
</div>
<div class="refsect1">
<a name="GtkFixed.child-property-details"></a><h2>Child Property Details</h2>
<div class="refsect2">
<a name="GtkFixed--c-x"></a><h3>The <code class="literal">“x”</code> child property</h3>
<pre class="programlisting"> “x” <span class="type">int</span></pre>
<p>X position of child widget.</p>
<p>Owner: GtkFixed</p>
<p>Flags: Read / Write</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GtkFixed--c-y"></a><h3>The <code class="literal">“y”</code> child property</h3>
<pre class="programlisting"> “y” <span class="type">int</span></pre>
<p>Y position of child widget.</p>
<p>Owner: GtkFixed</p>
<p>Flags: Read / Write</p>
<p>Default value: 0</p>
</div>
</div>
<div class="refsect1">
<a name="GtkFixed.see-also"></a><h2>See Also</h2>
<p><a class="link" href="GtkLayout.html" title="GtkLayout"><span class="type">GtkLayout</span></a></p>
</div>
</div>
<div class="footer">
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