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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-gtkcelllayout">
<refnamediv>
<refname>gtk.CellLayout</refname>
<refpurpose>an interface for packing cells</refpurpose>
</refnamediv>
<refsect1>
<title>Synopsis</title>
<classsynopsis language="python">
<ooclass><classname>gtk.CellLayout</classname></ooclass>
<ooclass><classname>gobject.GInterface</classname></ooclass>
<methodsynopsis language="python">
<methodname><link linkend="method-gtkcelllayout--pack-start">pack_start</link></methodname>
<methodparam><parameter role="keyword">cell</parameter></methodparam>
<methodparam><parameter role="keyword">expand</parameter><initializer>True</initializer></methodparam>
</methodsynopsis>
<methodsynopsis language="python">
<methodname><link linkend="method-gtkcelllayout--pack-end">pack_end</link></methodname>
<methodparam><parameter role="keyword">cell</parameter></methodparam>
<methodparam><parameter role="keyword">expand</parameter><initializer>True</initializer></methodparam>
</methodsynopsis>
<methodsynopsis language="python">
<methodname><link linkend="method-gtkcelllayout--clear">clear</link></methodname>
<methodparam></methodparam> </methodsynopsis>
<methodsynopsis language="python">
<methodname><link linkend="method-gtkcelllayout--set-attributes">set_attributes</link></methodname>
<methodparam><parameter>cell</parameter></methodparam>
<methodparam><parameter>...</parameter></methodparam>
</methodsynopsis>
<methodsynopsis language="python">
<methodname><link linkend="method-gtkcelllayout--add-attribute">add_attribute</link></methodname>
<methodparam><parameter role="keyword">cell</parameter></methodparam>
<methodparam><parameter role="keyword">attribute</parameter></methodparam>
<methodparam><parameter role="keyword">column</parameter></methodparam>
</methodsynopsis>
<methodsynopsis language="python">
<methodname><link linkend="method-gtkcelllayout--set-cell-data-func">set_cell_data_func</link></methodname>
<methodparam><parameter role="keyword">cell</parameter></methodparam>
<methodparam><parameter role="keyword">func</parameter></methodparam>
<methodparam><parameter role="keyword">func_data</parameter></methodparam>
</methodsynopsis>
<methodsynopsis language="python">
<methodname><link linkend="method-gtkcelllayout--clear-attributes">clear_attributes</link></methodname>
<methodparam><parameter role="keyword">cell</parameter></methodparam>
</methodsynopsis>
<methodsynopsis language="python">
<methodname><link linkend="method-gtkcelllayout--reorder">reorder</link></methodname>
<methodparam><parameter role="keyword">cell</parameter></methodparam>
<methodparam><parameter role="keyword">position</parameter></methodparam>
</methodsynopsis>
</classsynopsis>
</refsect1>
<refsect1>
<title>Description</title>
<note>
<para>This interface is available in PyGTK 2.4 and above.</para>
</note>
<para><link
linkend="class-gtkcelllayout"><classname>gtk.CellLayout</classname></link>
is an interface to be implemented by all objects that want to provide a
<link
linkend="class-gtktreeviewcolumn"><classname>gtk.TreeViewColumn</classname></link>-like
API for packing cells, setting attributes and data funcs. The <link
linkend="class-gtkcelllayout"><classname>gtk.CellLayout</classname></link>
interface is implemented by the <link
linkend="class-gtkcomboboxentry"><classname>gtk.ComboBoxEntry</classname></link>,
<link
linkend="class-gtkcombobox"><classname>gtk.ComboBox</classname></link>,
<link
linkend="class-gtkentrycompletion"><classname>gtk.EntryCompletion</classname></link>
and <link
linkend="class-gtktreeviewcolumn"><classname>gtk.TreeViewColumn</classname></link>
widgets.</para>
</refsect1>
<refsect1>
<title>Methods</title>
<refsect2 id="method-gtkcelllayout--pack-start">
<title>gtk.CellLayout.pack_start</title>
<programlisting><methodsynopsis language="python">
<methodname>pack_start</methodname>
<methodparam><parameter role="keyword">cell</parameter></methodparam>
<methodparam><parameter role="keyword">expand</parameter><initializer>True</initializer></methodparam>
</methodsynopsis></programlisting>
<variablelist>
<varlistentry>
<term><parameter role="keyword">cell</parameter> :</term>
<listitem><simpara>A <link linkend="class-gtkcellrenderer"><classname>gtk.CellRenderer</classname></link>.</simpara></listitem>
</varlistentry>
<varlistentry>
<term><parameter role="keyword">expand</parameter> :</term>
<listitem><simpara>if <literal>True</literal>, the
<parameter>cell</parameter> is to be given extra space that is
allocated to the cell layout.</simpara></listitem>
</varlistentry>
</variablelist>
<note>
<para>This method is available in PyGTK 2.4 and above.</para>
</note>
<para>The <methodname>pack_start</methodname>() method packs the <link
linkend="class-gtkcellrenderer"><classname>gtk.CellRenderer</classname></link>
specified by <parameter>cell</parameter> into the beginning of the cell
layout. If the optional parameter <parameter>expand</parameter> is
<literal>False</literal>, then <parameter>cell</parameter> is allocated no
more space than it needs. Any unused space is divided evenly between cells
for which <parameter>expand</parameter> is <literal>True</literal>.</para>
</refsect2>
<refsect2 id="method-gtkcelllayout--pack-end">
<title>gtk.CellLayout.pack_end</title>
<programlisting><methodsynopsis language="python">
<methodname>pack_end</methodname>
<methodparam><parameter role="keyword">cell</parameter></methodparam>
<methodparam><parameter role="keyword">expand</parameter><initializer>True</initializer></methodparam>
</methodsynopsis></programlisting>
<variablelist>
<varlistentry>
<term><parameter role="keyword">cell</parameter> :</term>
<listitem><simpara>A <link linkend="class-gtkcellrenderer"><classname>gtk.CellRenderer</classname></link>.</simpara></listitem>
</varlistentry>
<varlistentry>
<term><parameter role="keyword">expand</parameter> :</term>
<listitem><simpara>if <literal>True</literal>, the
<parameter>cell</parameter> is to be given extra space that is
allocated to the cell layout.</simpara></listitem>
</varlistentry>
</variablelist>
<note>
<para>This method is available in PyGTK 2.4 and above.</para>
</note>
<para>The <methodname>pack_end</methodname>() method adds the <link
linkend="class-gtkcellrenderer"><classname>gtk.CellRenderer</classname></link>
specified by <parameter>cell</parameter> to the end of the cell layout. If
the optional parameter <parameter>expand</parameter> is
<literal>False</literal>, then the <parameter>cell</parameter> is allocated
no more space than it needs. Any unused space is divided evenly between
cells for which <parameter>expand</parameter> is
<literal>True</literal>.</para>
</refsect2>
<refsect2 id="method-gtkcelllayout--clear">
<title>gtk.CellLayout.clear</title>
<programlisting><methodsynopsis language="python">
<methodname>clear</methodname>
<methodparam></methodparam> </methodsynopsis></programlisting>
<note>
<para>This method is available in PyGTK 2.4 and above.</para>
</note>
<para>The <methodname>clear</methodname>() method unsets all the
attribute mappings on all cell renderers in the cell layout.</para>
</refsect2>
<refsect2 id="method-gtkcelllayout--set-attributes">
<title>gtk.CellLayout.set_attributes</title>
<programlisting><methodsynopsis language="python">
<methodname>set_attributes</methodname>
<methodparam><parameter>cell</parameter></methodparam>
<methodparam><parameter>...</parameter></methodparam>
</methodsynopsis></programlisting>
<variablelist>
<varlistentry>
<term><parameter>cell</parameter> :</term>
<listitem><simpara>A <link
linkend="class-gtkcellrenderer"><classname>gtk.CellRenderer</classname></link>.</simpara></listitem>
</varlistentry>
<varlistentry>
<term><parameter>...</parameter> :</term>
<listitem><simpara>Zero or more keyword-value arguments in the format
attribute=column.</simpara></listitem>
</varlistentry>
</variablelist>
<note>
<para>This method is available in PyGTK 2.4 and above.</para>
</note>
<para>The <methodname>set_attributes</methodname>() method sets the
attributes provided as a keyword argument list as the attributes of the
<link
linkend="class-gtkcellrenderer"><classname>gtk.CellRenderer</classname></link>
specified by <parameter>cell</parameter>. The attributes should be supplied
as keyword-value arguments in the format: attribute=column (e.g. text=0,
background=1). All existing attributes are removed, and replaced with the
new attributes.</para>
</refsect2>
<refsect2 id="method-gtkcelllayout--add-attribute">
<title>gtk.CellLayout.add_attribute</title>
<programlisting><methodsynopsis language="python">
<methodname>add_attribute</methodname>
<methodparam><parameter role="keyword">cell</parameter></methodparam>
<methodparam><parameter role="keyword">attribute</parameter></methodparam>
<methodparam><parameter role="keyword">column</parameter></methodparam>
</methodsynopsis></programlisting>
<variablelist>
<varlistentry>
<term><parameter role="keyword">cell</parameter> :</term>
<listitem><simpara>A <link linkend="class-gtkcellrenderer"><classname>gtk.CellRenderer</classname></link>.</simpara></listitem>
</varlistentry>
<varlistentry>
<term><parameter role="keyword">attribute</parameter> :</term>
<listitem><simpara>An attribute on the renderer.</simpara></listitem>
</varlistentry>
<varlistentry>
<term><parameter role="keyword">column</parameter> :</term>
<listitem><simpara>The column number in the model to get the attribute from.</simpara></listitem>
</varlistentry>
</variablelist>
<note>
<para>This method is available in PyGTK 2.4 and above.</para>
</note>
<para>The <methodname>add_attribute</methodname>() method adds an
attribute mapping to the list in the cell layout. The
<parameter>column</parameter> parameter is the column of the model to get a
value from, and the <parameter>attribute</parameter> parameter is the
attribute of <parameter>cell</parameter> to be set from the value. So for
example if column 2 of the model contains strings, you could have the "text"
attribute of a <link
linkend="class-gtkcellrenderertext"><classname>gtk.CellRendererText</classname></link>
get its values from column 2.</para>
</refsect2>
<refsect2 id="method-gtkcelllayout--set-cell-data-func">
<title>gtk.CellLayout.set_cell_data_func</title>
<programlisting><methodsynopsis language="python">
<methodname>set_cell_data_func</methodname>
<methodparam><parameter role="keyword">cell</parameter></methodparam>
<methodparam><parameter role="keyword">func</parameter></methodparam>
<methodparam><parameter role="keyword">func_data</parameter></methodparam>
</methodsynopsis></programlisting>
<variablelist>
<varlistentry>
<term><parameter role="keyword">cell</parameter> :</term>
<listitem><simpara>A <link linkend="class-gtkcellrenderer"><classname>gtk.CellRenderer</classname></link>.</simpara></listitem>
</varlistentry>
<varlistentry>
<term><parameter role="keyword">func</parameter> :</term>
<listitem><simpara>The function to use.</simpara></listitem>
</varlistentry>
<varlistentry>
<term><parameter role="keyword">func_data</parameter> :</term>
<listitem><simpara>The user data for <parameter>func</parameter>.</simpara></listitem>
</varlistentry>
</variablelist>
<note>
<para>This method is available in PyGTK 2.4 and above.</para>
</note>
<para>The <methodname>set_cell_data_func</methodname>() method sets
the function (or method) specified by <parameter>func</parameter> to be used
for setting the column value of the <link
linkend="class-gtkcellrenderer"><classname>gtk.CellRenderer</classname></link>
specified by <parameter>cell</parameter> instead of using the standard
attribute mapping method. <parameter>func</parameter> may be
<literal>None</literal> to remove the current function. The signature of
<parameter>func</parameter> is:</para>
<programlisting>
<methodsynopsis language="python">
<methodname>celldatafunction</methodname>
<methodparam><parameter>celllayout</parameter></methodparam>
<methodparam><parameter>cell</parameter></methodparam>
<methodparam><parameter>model</parameter></methodparam>
<methodparam><parameter>iter</parameter></methodparam>
<methodparam><parameter>user_data</parameter></methodparam>
</methodsynopsis>
<methodsynopsis language="python">
<methodname>celldatamethod</methodname>
<methodparam><parameter>self</parameter></methodparam>
<methodparam><parameter>celllayout</parameter></methodparam>
<methodparam><parameter>cell</parameter></methodparam>
<methodparam><parameter>model</parameter></methodparam>
<methodparam><parameter>iter</parameter></methodparam>
<methodparam><parameter>user_data</parameter></methodparam>
</methodsynopsis>
</programlisting>
<para>where <parameter>celllayout</parameter> is the <link
linkend="class-gtkcelllayout"><classname>gtk.CellLayout</classname></link>,
<parameter>cell</parameter> is the <link
linkend="class-gtkcellrenderer"><classname>gtk.CellRenderer</classname></link>
for <parameter>celllayout</parameter>, <parameter>model</parameter> is the
<link
linkend="class-gtktreemodel"><classname>gtk.TreeModel</classname></link> and
<parameter>iter</parameter> is the <link
linkend="class-gtktreeiter"><classname>gtk.TreeIter</classname></link>
pointing at the row.</para>
</refsect2>
<refsect2 id="method-gtkcelllayout--clear-attributes">
<title>gtk.CellLayout.clear_attributes</title>
<programlisting><methodsynopsis language="python">
<methodname>clear_attributes</methodname>
<methodparam><parameter role="keyword">cell</parameter></methodparam>
</methodsynopsis></programlisting>
<variablelist>
<varlistentry>
<term><parameter role="keyword">cell</parameter> :</term>
<listitem><simpara>A <link linkend="class-gtkcellrenderer"><classname>gtk.CellRenderer</classname></link> to clear the attribute mapping on.</simpara></listitem>
</varlistentry>
</variablelist>
<note>
<para>This method is available in PyGTK 2.4 and above.</para>
</note>
<para>The <methodname>clear_attributes</methodname>() method clears
all existing attribute mappings from the <link
linkend="class-gtkcellrenderer"><classname>gtk.CellRenderer</classname></link>
specified by <parameter>cell</parameter> previously set with the <link
linkend="method-gtkcelllayout--set-attributes"><methodname>set_attributes</methodname>()</link>
or <link
linkend="method-gtkcelllayout--add-attribute"><methodname>add_attribute</methodname>()</link>
methods.</para>
</refsect2>
<refsect2 id="method-gtkcelllayout--reorder">
<title>gtk.CellLayout.reorder</title>
<programlisting><methodsynopsis language="python">
<methodname>reorder</methodname>
<methodparam><parameter role="keyword">cell</parameter></methodparam>
<methodparam><parameter role="keyword">position</parameter></methodparam>
</methodsynopsis></programlisting>
<variablelist>
<varlistentry>
<term><parameter role="keyword">cell</parameter> :</term>
<listitem><simpara>A <link linkend="class-gtkcellrenderer"><classname>gtk.CellRenderer</classname></link> to reorder.</simpara></listitem>
</varlistentry>
<varlistentry>
<term><parameter role="keyword">position</parameter> :</term>
<listitem><simpara>New position to insert <parameter>cell</parameter> at.</simpara></listitem>
</varlistentry>
</variablelist>
<note>
<para>This method is available in PyGTK 2.4 and above.</para>
</note>
<para>The <methodname>reorder</methodname>() method re-inserts the
<link
linkend="class-gtkcellrenderer"><classname>gtk.CellRenderer</classname></link>
specified by <parameter>cell</parameter> at
<parameter>position</parameter>. Note that <parameter>cell</parameter> has
to already be packed into <parameter>cell_layout</parameter> for this to
function properly.</para>
</refsect2>
</refsect1>
</refentry>
|
