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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-gtktexttagtable">
<refnamediv>
<refname>gtk.TextTagTable</refname>
<refpurpose>A collection of <link
linkend="class-gtktexttag"><classname>gtk.TextTag</classname></link> objects
that can be used together</refpurpose>
</refnamediv>
<refsect1>
<title>Synopsis</title>
<classsynopsis language="python">
<ooclass><classname>gtk.TextTagTable</classname></ooclass>
<ooclass><classname><link
linkend="class-gobject">gobject.GObject</link></classname></ooclass>
<constructorsynopsis language="python">
<methodname><link
linkend="constructor-gtktexttagtable">gtk.TextTagTable</link></methodname>
<methodparam></methodparam> </constructorsynopsis>
<methodsynopsis language="python">
<methodname><link
linkend="method-gtktexttagtable--add">add</link></methodname>
<methodparam><parameter role="keyword">tag</parameter></methodparam>
</methodsynopsis>
<methodsynopsis language="python">
<methodname><link
linkend="method-gtktexttagtable--remove">remove</link></methodname>
<methodparam><parameter role="keyword">tag</parameter></methodparam>
</methodsynopsis>
<methodsynopsis language="python">
<methodname><link
linkend="method-gtktexttagtable--lookup">lookup</link></methodname>
<methodparam><parameter
role="keyword">name</parameter></methodparam>
</methodsynopsis>
<methodsynopsis language="python">
<methodname><link linkend="method-gtktexttagtable--foreach">foreach</link></methodname>
<methodparam><parameter role="keyword">func</parameter></methodparam>
<methodparam><parameter role="keyword">data</parameter><initializer>None</initializer></methodparam>
</methodsynopsis>
<methodsynopsis language="python">
<methodname><link
linkend="method-gtktexttagtable--get-size">get_size</link></methodname>
<methodparam></methodparam> </methodsynopsis>
</classsynopsis>
</refsect1>
<refsect1>
<title>Ancestry</title>
<synopsis>+-- <link linkend="class-gobject">gobject.GObject</link>
+-- <link linkend="class-gtktexttagtable">gtk.TextTagTable</link>
</synopsis>
</refsect1>
<refsect1 id="signal-prototypes-gtktexttagtable">
<title>gtk.TextTagTable Signal Prototypes</title>
<para><link linkend="signal-prototypes-gobject">gobject.GObject Signal Prototypes</link></para>
<variablelist>
<varlistentry>
<term>"<link
linkend="signal-gtktexttagtable--tag-added">tag-added</link>"</term>
<listitem>
<methodsynopsis
language="python"><methodname>callback</methodname>
<methodparam><parameter>texttagtable</parameter></methodparam>
<methodparam><parameter>texttag</parameter></methodparam>
<methodparam><parameter>user_param1</parameter></methodparam>
<methodparam><parameter>...</parameter></methodparam>
</methodsynopsis>
</listitem>
</varlistentry>
<varlistentry>
<term>"<link
linkend="signal-gtktexttagtable--tag-changed">tag-changed</link>"</term>
<listitem>
<methodsynopsis
language="python"><methodname>callback</methodname>
<methodparam><parameter>texttagtable</parameter></methodparam>
<methodparam><parameter>texttag</parameter></methodparam>
<methodparam><parameter>size_changed</parameter></methodparam>
<methodparam><parameter>user_param1</parameter></methodparam>
<methodparam><parameter>...</parameter></methodparam>
</methodsynopsis>
</listitem>
</varlistentry>
<varlistentry>
<term>"<link
linkend="signal-gtktexttagtable--tag-removed">tag-removed</link>"</term>
<listitem>
<methodsynopsis
language="python"><methodname>callback</methodname>
<methodparam><parameter>texttagtable</parameter></methodparam>
<methodparam><parameter>texttag</parameter></methodparam>
<methodparam><parameter>user_param1</parameter></methodparam>
<methodparam><parameter>...</parameter></methodparam>
</methodsynopsis>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>Description</title>
<para>A <link
linkend="class-gtktexttagtable"><classname>gtk.TextTagTable</classname></link>
object holds a set of <link
linkend="class-gtktexttag"><classname>gtk.TextTag</classname></link> objects
for use with a <link
linkend="class-gtktextbuffer"><classname>gtk.TextBuffer</classname></link>.
Usually a <link
linkend="class-gtktexttagtable"><classname>gtk.TextTagTable</classname></link>
is created automatically when a <link
linkend="class-gtktextbuffer"><classname>gtk.TextBuffer</classname></link>
is created but a standalone <link
linkend="class-gtktexttagtable"><classname>gtk.TextTagTable</classname></link>
can be created using the <link
linkend="constructor-gtktexttagtable">gtk.TextTagTable</link>() constructor.
A <link
linkend="class-gtktexttagtable"><classname>gtk.TextTagTable</classname></link>
can be passed as an argument to the <link
linkend="constructor-gtktextbuffer">gtk.TextBuffer</link>() constructor to
associate an existing <link
linkend="class-gtktexttagtable"><classname>gtk.TextTagTable</classname></link>
rather than creating a new one. This is useful when several textbuffers need
to use the same texttags.</para>
</refsect1>
<refsect1 id="constructor-gtktexttagtable">
<title>Constructor</title>
<programlisting><constructorsynopsis language="python">
<methodname>gtk.TextTagTable</methodname>
<methodparam></methodparam> </constructorsynopsis></programlisting>
<variablelist>
<varlistentry>
<term><emphasis>Returns</emphasis> :</term>
<listitem><simpara>a new <link
linkend="class-gtktexttagtable"><classname>gtk.TextTagTable</classname></link></simpara></listitem>
</varlistentry>
</variablelist>
<para>Creates a new <link
linkend="class-gtktexttagtable"><classname>gtk.TextTagTable</classname></link>.
The table contains no tags by default.</para>
</refsect1>
<refsect1>
<title>Methods</title>
<refsect2 id="method-gtktexttagtable--add">
<title>gtk.TextTagTable.add</title>
<programlisting><methodsynopsis language="python">
<methodname>add</methodname>
<methodparam><parameter
role="keyword">tag</parameter></methodparam>
</methodsynopsis></programlisting>
<variablelist>
<varlistentry>
<term><parameter role="keyword">tag</parameter> :</term>
<listitem><simpara>a <link
linkend="class-gtktexttag"><classname>gtk.TextTag</classname></link></simpara></listitem>
</varlistentry>
</variablelist>
<para>The <methodname>add</methodname>() method adds a texttag to the
texttagtable. The texttag is assigned the highest priority in the
texttagtable. A <literal>ValueError</literal> exception is raised if
<parameter>tag</parameter> is in a texttag table already, or has the same
name as another texttag in the texttagtable.</para>
</refsect2>
<refsect2 id="method-gtktexttagtable--remove">
<title>gtk.TextTagTable.remove</title>
<programlisting><methodsynopsis language="python">
<methodname>remove</methodname>
<methodparam><parameter
role="keyword">tag</parameter></methodparam>
</methodsynopsis></programlisting>
<variablelist>
<varlistentry>
<term><parameter role="keyword">tag</parameter> :</term>
<listitem><simpara>a <link
linkend="class-gtktexttag"><classname>gtk.TextTag</classname></link></simpara></listitem>
</varlistentry>
</variablelist>
<para>The <methodname>remove</methodname>() method removes a texttag
from the texttagtable.</para>
</refsect2>
<refsect2 id="method-gtktexttagtable--lookup">
<title>gtk.TextTagTable.lookup</title>
<programlisting><methodsynopsis language="python">
<methodname>lookup</methodname>
<methodparam><parameter
role="keyword">name</parameter></methodparam>
</methodsynopsis></programlisting>
<variablelist>
<varlistentry>
<term><parameter role="keyword">name</parameter> :</term>
<listitem><simpara>the name of a texttag</simpara></listitem>
</varlistentry>
<varlistentry>
<term><emphasis>Returns</emphasis> :</term>
<listitem><simpara>The texttag, or <literal>None</literal> if none
by that name is in the texttagtable.</simpara></listitem>
</varlistentry>
</variablelist>
<para>The <methodname>lookup</methodname>() method looks in the
texttagtable for a <link
linkend="class-gtktexttag"><classname>gtk.TextTag</classname></link> with
the name specified by <parameter>name</parameter> and returns it if found.
This method returns <literal>None</literal> if <parameter>name</parameter>
does not identify a <link
linkend="class-gtktexttag"><classname>gtk.TextTag</classname></link> in the
texttagtable.</para>
</refsect2>
<refsect2 id="method-gtktexttagtable--foreach">
<title>gtk.TextTagTable.foreach</title>
<programlisting><methodsynopsis language="python">
<methodname>foreach</methodname>
<methodparam><parameter role="keyword">func</parameter></methodparam>
<methodparam><parameter role="keyword">data</parameter><initializer>None</initializer></methodparam>
</methodsynopsis></programlisting>
<variablelist>
<varlistentry>
<term><parameter role="keyword">func</parameter> :</term>
<listitem><simpara>a function to call on each texttag</simpara></listitem>
</varlistentry>
<varlistentry>
<term><parameter role="keyword">data</parameter> :</term>
<listitem><simpara>user data to pass to
<parameter>func</parameter> 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>foreach</methodname>() method calls the function
specified by <parameter>func</parameter> on each texttag in the text tag
table passing the user data specified by <parameter>data</parameter>. The
signature of <parameter>func</parameter> is:</para>
<programlisting>
def func(texttag, user_data):
</programlisting>
<para>where <parameter>texttag</parameter> is a <link
linkend="class-gtktexttag"><classname>gtk.TextTag</classname></link> in the
text tag table and <parameter>user_data</parameter> is
<parameter>data</parameter>.
Note that the table may not be modified while iterating over it (you can't add/remove tags).</para>
</refsect2>
<refsect2 id="method-gtktexttagtable--get-size">
<title>gtk.TextTagTable.get_size</title>
<programlisting><methodsynopsis language="python">
<methodname>get_size</methodname>
<methodparam></methodparam> </methodsynopsis></programlisting>
<variablelist>
<varlistentry>
<term><emphasis>Returns</emphasis> :</term>
<listitem><simpara>the number of texttags in the
texttagtable</simpara></listitem>
</varlistentry>
</variablelist>
<para>The <methodname>get_size</methodname>() method returns the size
of the texttagtable (number of texttags).</para>
</refsect2>
</refsect1>
<refsect1>
<title>Signals</title>
<refsect2 id="signal-gtktexttagtable--tag-added">
<title>The "tag-added" gtk.TextTagTable Signal</title>
<programlisting><methodsynopsis language="python">
<methodname>callback</methodname>
<methodparam><parameter>texttagtable</parameter></methodparam>
<methodparam><parameter>texttag</parameter></methodparam>
<methodparam><parameter>user_param1</parameter></methodparam>
<methodparam><parameter>...</parameter></methodparam>
</methodsynopsis></programlisting>
<variablelist>
<varlistentry>
<term><parameter>texttagtable</parameter> :</term>
<listitem><simpara>the texttagtable that received the
signal</simpara></listitem>
</varlistentry>
<varlistentry>
<term><parameter>texttag</parameter> :</term>
<listitem><simpara>a <link
linkend="class-gtktexttag"><classname>gtk.TextTag</classname></link></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>
<para>The "tag-added" signal is emitted when the <link
linkend="class-gtktexttag"><classname>gtk.TextTag</classname></link>
specified by <parameter>texttag</parameter> is added to
<parameter>texttagtable</parameter>.</para>
</refsect2>
<refsect2 id="signal-gtktexttagtable--tag-changed">
<title>The "tag-changed" gtk.TextTagTable Signal</title>
<programlisting><methodsynopsis language="python">
<methodname>callback</methodname>
<methodparam><parameter>texttagtable</parameter></methodparam>
<methodparam><parameter>texttag</parameter></methodparam>
<methodparam><parameter>size_changed</parameter></methodparam>
<methodparam><parameter>user_param1</parameter></methodparam>
<methodparam><parameter>...</parameter></methodparam>
</methodsynopsis></programlisting>
<variablelist>
<varlistentry>
<term><parameter>texttagtable</parameter> :</term>
<listitem><simpara>the texttagtable that received the
signal</simpara></listitem>
</varlistentry>
<varlistentry>
<term><parameter>texttag</parameter> :</term>
<listitem><simpara>a <link
linkend="class-gtktexttag"><classname>gtk.TextTag</classname></link></simpara></listitem>
</varlistentry>
<varlistentry>
<term><parameter>size_changed</parameter> :</term>
<listitem><simpara>if <literal>True</literal> a
<parameter>texttag</parameter> property has changed that may affect the size
of the text enclosed by the texttag</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>
<para>The "tag-changed" signal is emitted when a property of the <link
linkend="class-gtktexttag"><classname>gtk.TextTag</classname></link>
specified by <parameter>texttag</parameter> is changed. If
<parameter>size_changed</parameter> is <literal>True</literal> the text
enclosed by <parameter>texttag</parameter> will change size.</para>
</refsect2>
<refsect2 id="signal-gtktexttagtable--tag-removed">
<title>The "tag-removed" gtk.TextTagTable Signal</title>
<programlisting><methodsynopsis language="python">
<methodname>callback</methodname>
<methodparam><parameter>texttagtable</parameter></methodparam>
<methodparam><parameter>texttag</parameter></methodparam>
<methodparam><parameter>user_param1</parameter></methodparam>
<methodparam><parameter>...</parameter></methodparam>
</methodsynopsis></programlisting>
<variablelist>
<varlistentry>
<term><parameter>texttagtable</parameter> :</term>
<listitem><simpara>the texttagtable that received the
signal</simpara></listitem>
</varlistentry>
<varlistentry>
<term><parameter>texttag</parameter> :</term>
<listitem><simpara>a <link
linkend="class-gtktexttag"><classname>gtk.TextTag</classname></link></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>
<para>The "tag-removed" signal is emitted when the <link
linkend="class-gtktexttag"><classname>gtk.TextTag</classname></link>
specified by <parameter>texttag</parameter> is removed from
<parameter>texttagtable</parameter></para>
</refsect2>
</refsect1>
</refentry>
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