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Properties
| gboolean | has-entry | Read / Write |
| GtkTreeModel * | model | Read / Write |
| gint | text-column | Read / Write |
Object Hierarchy
GObject ╰── GInitiallyUnowned ╰── GtkCellRenderer ╰── GtkCellRendererText ╰── GtkCellRendererCombo
Description
GtkCellRendererCombo renders text in a cell like GtkCellRendererText from which it is derived. But while GtkCellRendererText offers a simple entry to edit the text, GtkCellRendererCombo offers a GtkComboBox widget to edit the text. The values to display in the combo box are taken from the tree model specified in the “model” property.
The combo cell renderer takes care of adding a text cell renderer to the combo box and sets it to display the column specified by its “text-column” property. Further properties of the combo box can be set in a handler for the “editing-started” signal.
The GtkCellRendererCombo cell renderer was added in GTK+ 2.6.
Functions
gtk_cell_renderer_combo_new ()
GtkCellRenderer *
gtk_cell_renderer_combo_new (void);
Creates a new GtkCellRendererCombo.
Adjust how text is drawn using object properties.
Object properties can be set globally (with g_object_set()).
Also, with GtkTreeViewColumn, you can bind a property to a value
in a GtkTreeModel. For example, you can bind the “text” property
on the cell renderer to a string value in the model, thus rendering
a different string in each row of the GtkTreeView.
Since 2.6
Property Details
The “has-entry” property
“has-entry” gboolean
If TRUE, the cell renderer will include an entry and allow to enter
values other than the ones in the popup list.
Flags: Read / Write
Default value: TRUE
Since 2.6
The “model” property
“model” GtkTreeModel *
Holds a tree model containing the possible values for the combo box. Use the text_column property to specify the column holding the values.
Flags: Read / Write
Since 2.6
The “text-column” property
“text-column” gint
Specifies the model column which holds the possible values for the combo box.
Note that this refers to the model specified in the model property, not the model backing the tree view to which this cell renderer is attached.
GtkCellRendererCombo automatically adds a text cell renderer for this column to its combo box.
Flags: Read / Write
Allowed values: >= -1
Default value: -1
Since 2.6
Signal Details
The “changed” signal
void user_function (GtkCellRendererCombo *combo, gchar *path_string, GtkTreeIter *new_iter, gpointer user_data)
This signal is emitted each time after the user selected an item in
the combo box, either by using the mouse or the arrow keys. Contrary
to GtkComboBox, GtkCellRendererCombo::changed is not emitted for
changes made to a selected item in the entry. The argument new_iter
corresponds to the newly selected item in the combo box and it is relative
to the GtkTreeModel set via the model property on GtkCellRendererCombo.
Note that as soon as you change the model displayed in the tree view, the tree view will immediately cease the editing operating. This means that you most probably want to refrain from changing the model until the combo cell renderer emits the edited or editing_canceled signal.
Parameters
combo |
the object on which the signal is emitted |
|
path_string |
a string of the path identifying the edited cell (relative to the tree view model) |
|
new_iter |
the new iter selected in the combo box (relative to the combo box model) |
|
user_data |
user data set when the signal handler was connected. |
Flags: Run Last
Since 2.14