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<?xml version="1.0" standalone="no"?>
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
"http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd">
<refentry id="class-gtkradioaction">
<refnamediv>
<refname>gtk.RadioAction</refname>
<refpurpose>an action that can be grouped so that only one can be
active (new in PyGTK 2.4)</refpurpose>
</refnamediv>
<refsect1>
<title>Synopsis</title>
<classsynopsis language="python">
<ooclass><classname>gtk.RadioAction</classname></ooclass>
<ooclass><classname><link linkend="class-gtktoggleaction">gtk.ToggleAction</link></classname></ooclass>
<constructorsynopsis language="python">
<methodname><link linkend="constructor-gtkradioaction">gtk.RadioAction</link></methodname>
<methodparam><parameter role="keyword">name</parameter></methodparam>
<methodparam><parameter role="keyword">label</parameter></methodparam>
<methodparam><parameter role="keyword">tooltip</parameter></methodparam>
<methodparam><parameter role="keyword">stock_id</parameter></methodparam>
<methodparam><parameter role="keyword">value</parameter></methodparam>
</constructorsynopsis>
<methodsynopsis language="python">
<methodname><link linkend="method-gtkradioaction--set-group">set_group</link></methodname>
<methodparam><parameter role="keyword">group</parameter></methodparam>
</methodsynopsis>
<methodsynopsis language="python">
<methodname><link linkend="method-gtkradioaction--get-group">get_group</link></methodname>
<methodparam></methodparam>
</methodsynopsis>
<methodsynopsis language="python">
<methodname><link linkend="method-gtkradioaction--set-current-value">set_current_value</link></methodname>
<methodparam></methodparam>
</methodsynopsis>
<methodsynopsis language="python">
<methodname><link linkend="method-gtkradioaction--get-current-value">get_current_value</link></methodname>
<methodparam></methodparam>
</methodsynopsis>
</classsynopsis>
</refsect1>
<refsect1>
<title>Ancestry</title>
<synopsis>+-- <link linkend="class-gobject">gobject.GObject</link>
+-- <link linkend="class-gtkaction">gtk.Action</link>
+-- <link linkend="class-gtktoggleaction">gtk.ToggleAction</link>
+-- <link linkend="class-gtkradioaction">gtk.RadioAction</link>
</synopsis>
</refsect1>
<refsect1>
<title>Implemented Interfaces</title>
<para>
<link linkend="class-gtkradioaction"><classname>gtk.RadioAction</classname></link>
implements
<link linkend="class-gtkbuildable"><classname>gtk.Buildable</classname></link>
</para>
</refsect1>
<refsect1 id="properties-gtkradioaction">
<title>gtk.RadioAction Properties</title>
<para><link linkend="properties-gtkaction">gtk.Action Properties</link></para>
<para><link linkend="properties-gtktoggleaction">gtk.ToggleAction Properties</link></para>
<blockquote role="properties">
<informaltable pgwide="1" frame="none">
<tgroup cols="3">
<colspec column="1" colwidth="1in"/>
<colspec column="2" colwidth="1in"/>
<colspec column="3" colwidth="4in"/>
<tbody>
<row valign="top">
<entry>"current-value"</entry>
<entry>Read-Write</entry>
<entry>The value property of the currently active member of the
group to which this action belongs. This property is available in
GTK+ 2.10 and above.</entry>
</row>
<row valign="top">
<entry>"group"</entry>
<entry>Write</entry>
<entry>Sets a new group for a radio action. This property is
available in GTK+ 2.4 and above</entry>
</row>
<row valign="top">
<entry>"value"</entry>
<entry>Read-Write</entry>
<entry>The value is an arbitrary integer which can be used as
a convenient way to determine which action in the group is
currently active in an "activate" or "changed" signal
handler. See the <link
linkend="method-gtkradioaction--get-current-value"><methodname>get_current_value</methodname>()</link>
and the <link
linkend="method-gtkactiongroup--add-radio-actions"><methodname>gtk.ActionGroup.add_radio_actions</methodname>()</link>
methods for convenient ways to get and set this property. This
property is available in GTK+ 2.4 and above</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</blockquote>
</refsect1>
<refsect1 id="signal-prototypes-gtkradioaction">
<title>gtk.RadioAction Signal Prototypes</title>
<para><link linkend="signal-prototypes-gobject">gobject.GObject Signal Prototypes</link></para>
<para><link linkend="signal-prototypes-gtkaction">gtk.Action Signal Prototypes</link></para>
<para><link linkend="signal-prototypes-gtktoggleaction">gtk.ToggleAction Signal Prototypes</link></para>
<variablelist>
<varlistentry>
<term>"<link linkend="signal-gtkradioaction--changed">changed</link>"</term>
<listitem>
<methodsynopsis language="python"><methodname>callback</methodname>
<methodparam><parameter>radioaction</parameter></methodparam>
<methodparam><parameter>current</parameter></methodparam>
<methodparam><parameter>user_param1</parameter></methodparam>
<methodparam><parameter>...</parameter></methodparam>
</methodsynopsis>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>Description</title>
<note>
<para>This object is available in PyGTK 2.4 and above.</para>
</note>
<para>A <link
linkend="class-gtkradioaction"><classname>gtk.RadioAction</classname></link>
is a subclass of <link
linkend="class-gtktoggleaction"><classname>gtk.ToggleAction</classname></link>
and similar to <link
linkend="class-gtkradiomenuitem"><classname>gtk.RadioMenuItem</classname></link>.
A number of radio actions can be linked together so that only one may be
active at any one time.</para>
</refsect1>
<refsect1 id="constructor-gtkradioaction">
<title>Constructor</title>
<programlisting><constructorsynopsis language="python">
<methodname>gtk.RadioAction</methodname>
<methodparam><parameter role="keyword">name</parameter></methodparam>
<methodparam><parameter role="keyword">label</parameter></methodparam>
<methodparam><parameter role="keyword">tooltip</parameter></methodparam>
<methodparam><parameter role="keyword">stock_id</parameter></methodparam>
<methodparam><parameter role="keyword">value</parameter></methodparam>
</constructorsynopsis></programlisting>
<variablelist>
<varlistentry>
<term><parameter role="keyword">name</parameter> :</term>
<listitem><simpara>A unique name for the action</simpara></listitem>
</varlistentry>
<varlistentry>
<term><parameter role="keyword">label</parameter> :</term>
<listitem><simpara>The label displayed in menu items and on
buttons</simpara></listitem>
</varlistentry>
<varlistentry>
<term><parameter role="keyword">tooltip</parameter> :</term>
<listitem><simpara>A tooltip for this action</simpara></listitem>
</varlistentry>
<varlistentry>
<term><parameter role="keyword">stock_id</parameter> :</term>
<listitem><simpara>The stock icon to display in widgets representing
this action</simpara></listitem>
</varlistentry>
<varlistentry>
<term><parameter role="keyword">value</parameter> :</term>
<listitem><simpara>A unique integer value that <link
linkend="method-gtkradioaction--get-current-value"><methodname>get_current_value()</methodname></link>
should return if this action is selected.</simpara></listitem>
</varlistentry>
<varlistentry>
<term><emphasis>Returns</emphasis> :</term>
<listitem><simpara>a new <link
linkend="class-gtkradioaction"><classname>gtk.RadioAction</classname></link></simpara></listitem>
</varlistentry>
</variablelist>
<note>
<para>This constructor is available in PyGTK 2.4 and above.</para>
</note>
<para>Creates a new <link
linkend="class-gtkradioaction"><classname>gtk.RadioAction</classname></link>
object suing the properties specified by: <parameter>name</parameter>,
<parameter>label</parameter>, <parameter>tooltip</parameter>,
<parameter>stock_id</parameter> and <parameter>value</parameter>. To add the
action to a <link
linkend="class-gtkactiongroup"><classname>gtk.ActionGroup</classname></link>
and set the accelerator for the action, call the <link
linkend="method-gtkactiongroup--add-action-with-accel"><methodname>gtk.ActionGroup.add_action_with_accel()</methodname></link>.</para>
</refsect1>
<refsect1>
<title>Methods</title>
<refsect2 id="method-gtkradioaction--set-group">
<title>gtk.RadioAction.set_group</title>
<programlisting><methodsynopsis language="python">
<methodname>set_group</methodname>
<methodparam><parameter role="keyword">group</parameter></methodparam>
</methodsynopsis></programlisting>
<variablelist>
<varlistentry>
<term><parameter role="keyword">group</parameter> :</term>
<listitem><simpara>another <link
linkend="class-gtkradioaction"><classname>gtk.RadioAction</classname></link> or <literal>None</literal></simpara></listitem>
</varlistentry>
</variablelist>
<note>
<para>This method is available in PyGTK 2.4 and above.</para>
</note>
<para>The <methodname>set_group</methodname>() method sets the radio
group for the radio action to the same group as the <link
linkend="class-gtkradioaction"><classname>gtk.RadioAction</classname></link>
specified by <parameter>group</parameter> i.e. the radio action joins the
group.</para>
<para>In PyGTK 2.6.2 and above, if <parameter>group</parameter> is
<literal>None</literal> the radio action is removed from its current
group.</para>
</refsect2>
<refsect2 id="method-gtkradioaction--get-group">
<title>gtk.RadioAction.get_group</title>
<programlisting><methodsynopsis language="python">
<methodname>get_group</methodname>
<methodparam></methodparam> </methodsynopsis></programlisting>
<variablelist>
<varlistentry>
<term><emphasis>Returns</emphasis> :</term>
<listitem><simpara>a list containing the radio actions in the
group or <parameter>None</parameter></simpara></listitem>
</varlistentry>
</variablelist>
<note>
<para>This method is available in PyGTK 2.4 and above.</para>
</note>
<para>The <methodname>get_group</methodname>() method returns a list
containing the group that the radio action belongs to or
<literal>None</literal> if the radio action is not part of a group.</para>
</refsect2>
<refsect2 id="method-gtkradioaction--set-current-value">
<title>gtk.RadioAction.set_current_value</title>
<programlisting><methodsynopsis language="python">
<methodname>set_current_value</methodname>
<methodparam></methodparam>
</methodsynopsis></programlisting>
<variablelist>
<varlistentry>
<term><parameter role="keyword">current_value</parameter> :</term>
<listitem><simpara>the new value.</simpara></listitem>
</varlistentry>
</variablelist>
<note>
<para>This method is available in PyGTK 2.10 and above.</para>
</note>
<para>The <methodname>get_current_value</methodname>() method sets the currently
active group member to the member with value property current_value.</para>
</refsect2>
<refsect2 id="method-gtkradioaction--get-current-value">
<title>gtk.RadioAction.get_current_value</title>
<programlisting><methodsynopsis language="python">
<methodname>get_current_value</methodname>
<methodparam></methodparam>
</methodsynopsis></programlisting>
<variablelist>
<varlistentry>
<term><emphasis>Returns</emphasis> :</term>
<listitem><simpara>The value of the currently active group
member</simpara></listitem>
</varlistentry>
</variablelist>
<note>
<para>This method is available in PyGTK 2.4 and above.</para>
</note>
<para>The <methodname>get_current_value</methodname>() method returns
the "value" property of the the currently active member of the group that
the radio action belongs to.</para>
</refsect2>
</refsect1>
<refsect1>
<title>Signals</title>
<refsect2 id="signal-gtkradioaction--changed">
<title>The "changed" gtk.RadioAction Signal</title>
<programlisting><methodsynopsis language="python">
<methodname>callback</methodname>
<methodparam><parameter>radioaction</parameter></methodparam>
<methodparam><parameter>current</parameter></methodparam>
<methodparam><parameter>user_param1</parameter></methodparam>
<methodparam><parameter>...</parameter></methodparam>
</methodsynopsis></programlisting>
<variablelist>
<varlistentry>
<term><parameter>radioaction</parameter> :</term>
<listitem><simpara>the radioaction that received the
signal</simpara></listitem>
</varlistentry>
<varlistentry>
<term><parameter>current</parameter> :</term>
<listitem><simpara>the currently active <link
linkend="class-gtkradioaction"><classname>gtk.RadioAction</classname></link>
in the group</simpara></listitem>
</varlistentry>
<varlistentry>
<term><parameter>user_param1</parameter> :</term>
<listitem><simpara>the first user parameter (if any) specified
with the <link
linkend="method-gobject--connect"><methodname>connect</methodname>()</link>
method</simpara></listitem>
</varlistentry>
<varlistentry>
<term><parameter>...</parameter> :</term>
<listitem><simpara>additional user parameters (if
any)</simpara></listitem>
</varlistentry>
</variablelist>
<note>
<para>This signal is available in GTK+ 2.4 and above.</para>
</note>
<para>The "changed" signal is emitted on every member of a radio group
when the active member is changed. The signal gets emitted after the
"activate" signals for the previous and current active members.</para>
</refsect2>
</refsect1>
</refentry>
|
