Thank you for your help - that worked. I've worked with tree views and I
should have seen the similarity (didn't see that the combo box needed to be
type cast to a cell layout).
Mark
PS - I'll make sure to stay on gtk-app-devel-list - my bad.
David Neèas (Yeti) <[EMAIL PROTECTED]> wrote:
Date: Fri, 10 Nov 2006 00:23:46 +0100
From: David Neèas (Yeti) <[EMAIL PROTECTED]>
To: Mark Richardson <[EMAIL PROTECTED]>
Subject: Re: ComboBox and TreeStore
On Thu, Nov 09, 2006 at 02:59:18PM -0800, Mark Richardson wrote:
> Thanks, I can't seem to find documentation on how to do this, so through
> trial and error I get a little closer. So if I add ...
> GtkCellRenderer *myCellRenderer=gtk_cell_renderer_text_new()
> gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(myComboBox), myCellRenderer,
> FALSE);
> I get a blank line in the combo box (closer to displaying, but still not
> right).
>
> In a tree view, I would create a column...
> GtkTreeViewColumn *myColumn=gtk_tree_view_column_new_with_attibutes("Title",
> myCellRenderer, "text", 0, NULL);
>
> but I don't know how to associate this column with a combo box.
Since GtkCellLayout is an interface, not an object, there is
no method to create a GtkCellLayout, and therefore no method
as gtk_tree_view_column_new_with_attibutes() to create it
*and* set its attributes. So you create a combo box first:
combo = gtk_combo_box_new();
and then create the mapping between model columns and
renderer attributes using the GtkCellLayout interface:
gtk_cell_layout_add_attribute(GTK_CELL_LAYOUT(combo), renderer,
"text", 0);
(or the same with a cell data func).
Exactly the same can be done with GtkTreeViewColumns.
GtkTreeViewColumn:
void gtk_tree_view_column_add_attribute
(GtkTreeViewColumn *tree_column,
GtkCellRenderer *cell_renderer,
const gchar *attribute,
gint column);
void gtk_tree_view_column_set_cell_data_func
(GtkTreeViewColumn *tree_column,
GtkCellRenderer *cell_renderer,
GtkTreeCellDataFunc func,
gpointer func_data,
GtkDestroyNotify destroy);
GtkCellLayout:
void gtk_cell_layout_add_attribute (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
const gchar *attribute,
gint column);
void gtk_cell_layout_set_cell_data_func
(GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
GtkCellLayoutDataFunc func,
gpointer func_data,
GDestroyNotify destroy);
The similarity should be evident... In fact the
GtkTreeViewColumn's methods are simple aliases for
GtkCellLayout methods.
Yeti
--
Whatever.
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