gtk2/docs/reference/gtk/tmpl/gtkcelllayout.sgml

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GtkCellLayout

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An interface for packing cells

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<para>
#GtkCellLayout is an interface to be implemented by all objects which
want to provide a #GtkTreeViewColumn-like API for packing cells, setting
attributes and data funcs. 
</para>

<para>
One of the notable features provided by implementations of GtkCellLayout
are <emphasis>attributes</emphasis>. Attributes let you set the properties
in flexible ways. They can just be set to constant values like regular
properties. But they can also be mapped to a column of the underlying 
tree model with gtk_cell_layout_set_attributes(), which means that the value 
of the attribute can change from cell to cell as they are rendered by the 
cell renderer. Finally, it is possible to specify a function with 
gtk_cell_layout_set_cell_data_func() that is called to determine the value 
of the attribute for each cell that is rendered.
</para>

<refsect2 id="GtkCellLayout-BUILDER-UI">
<title>GtkCellLayouts as GtkBuildable</title>
<para>
Implementations of GtkCellLayout which also implement the GtkBuildable 
interface (#GtkCellView, #GtkIconView, #GtkComboBox, #GtkComboBoxEntry, 
#GtkEntryCompletion, #GtkTreeViewColumn) accept GtkCellRenderer objects
as &lt;child&gt; elements in UI definitions. They support a custom 
&lt;attributes&gt; element for their children, which can contain 
multiple &lt;attribute&gt; elements. Each &lt;attribute&gt; element has 
a name attribute which specifies a property of the cell renderer; the 
content of the element is the attribute value.
</para>
<example>
<title>A UI definition fragment specifying attributes</title>
<programlisting><![CDATA[
<object class="GtkCellView">
  <child>
    <object class="GtkCellRendererText"/>
    <attributes>
      <attribute name="text">0</attribute>
    </attributes>
  </child>"
</object>
]]></programlisting>
</example>
</refsect2>

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<para>

</para>

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<!-- ##### SECTION Image ##### -->


<!-- ##### STRUCT GtkCellLayout ##### -->
<para>

</para>


<!-- ##### STRUCT GtkCellLayoutIface ##### -->
<para>

</para>

@g_iface: 
@pack_start: 
@pack_end: 
@clear: 
@add_attribute: 
@set_cell_data_func: 
@clear_attributes: 
@reorder: 
@get_cells: 

<!-- ##### USER_FUNCTION GtkCellLayoutDataFunc ##### -->
<para>
A function which should set the value of @cell_layout's cell renderer(s)
as appropriate. 
</para>

@cell_layout: a #GtkCellLayout
@cell: the cell renderer whose value is to be set
@tree_model: the model
@iter: a #GtkTreeIter indicating the row to set the value for
@data: user data passed to gtk_cell_layout_set_cell_data_func()


<!-- ##### FUNCTION gtk_cell_layout_pack_start ##### -->
<para>

</para>

@cell_layout: 
@cell: 
@expand: 


<!-- ##### FUNCTION gtk_cell_layout_pack_end ##### -->
<para>

</para>

@cell_layout: 
@cell: 
@expand: 


<!-- ##### FUNCTION gtk_cell_layout_get_cells ##### -->
<para>

</para>

@cell_layout: 
@Returns: 


<!-- ##### FUNCTION gtk_cell_layout_reorder ##### -->
<para>

</para>

@cell_layout: 
@cell: 
@position: 


<!-- ##### FUNCTION gtk_cell_layout_clear ##### -->
<para>

</para>

@cell_layout: 


<!-- ##### FUNCTION gtk_cell_layout_set_attributes ##### -->
<para>

</para>

@cell_layout: 
@cell: 
@Varargs: 


<!-- ##### FUNCTION gtk_cell_layout_add_attribute ##### -->
<para>

</para>

@cell_layout: 
@cell: 
@attribute: 
@column: 


<!-- ##### FUNCTION gtk_cell_layout_set_cell_data_func ##### -->
<para>

</para>

@cell_layout: 
@cell: 
@func: 
@func_data: 
@destroy: 


<!-- ##### FUNCTION gtk_cell_layout_clear_attributes ##### -->
<para>

</para>

@cell_layout: 
@cell: