How to add stuff to treeviews??

["Jason Brisbane" <darkeen westnet com au>]

---- Original Message ----
From: darkeen westnet com au
To: mekstran scl ameslab gov
Subject: Re: [Glade-users] How to add stuff to treeviews??
Date: Mon, 28 May 2007 22:09:36 +0800

Michael Ekstrand wrote:
> On Fri, 2007-05-25 at 11:47 +0300, Felipe Balbi wrote:
>   
> > After getting my treeview using glade_xml_get_widget() and
inserting a
> > column with gtk_tree_view_insert_column()... how can I add data to
the
> > treeview???
> >     
>
> You don't add data to a tree view itself, you add it to the
TreeModel
> which is backing the treeview.  So you need to create a
GtkTreeModel of
> some kind (usually either GtkListStore or GtkTreeStore), populate
it,
> and assign it to the tree view (with gtk_tree_view_set_model()).
>
> See the following links for more details:
>       * http://scentric.net/tutorial/
>       * http://developer.gnome.org/doc/API/2.0/gtk/TreeWidget.html
>
> - Michael
>
> _______________________________________________
> Glade-users maillist  -  Glade-users lists ximian com
> http://lists.ximian.com/mailman/listinfo/glade-users
>
>   
Hello,

I too am trying to use a Treeview model view, etc.
I have created a list store before and that works fine.
Now I am creating a new program and want to create a Treeview with a 
parent iter and 6 set child iter (ie you create a "new row" and the
row 
auto creates the 6 children underneath)
But I am having trouble doing ANYTHING with the treeview.

Cut/paste the example from the gtk 2.0 API simply fails to do
anything. 
I am left with a blank screen. inserting g_print shows that the code
is 
being called, but nothing is being displayed.

Since the gtk_tree_view is created in glade, I am simply doing a 
lookup_widget on the treeview and adding columns to it (ie none
exist) 
and then populating the data.

My code, very stripped down (to remove possible errors) is:

void
on_harpmanager_show                    (GtkWidget       *widget,
                                        gpointer         user_data)
{
 GtkTreeStore *tree_store;
 GtkTreeIter parent_iter, child_iter;
 GtkWidget *view;
 GtkCellRenderer *renderer; 
 GtkTreeSelection  *selection;
 GtkTreeViewColumn *col;

 // CREATE THE TREE_VIEW and hook the row selection event into it!
   view = lookup_widget(widget, "treeview_base");
   selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(view));
   gtk_tree_selection_set_select_function(selection,
func_base_select, 
NULL, NULL);
   // CREATE COLUMN HEADERS
  if (gtk_tree_view_get_column(GTK_TREE_VIEW(view), 0) == NULL) 
  {
      // -- Column 1 --
      col = gtk_tree_view_column_new();
      gtk_tree_view_column_set_title(col, "CHARACTER NAME");
      gtk_tree_view_append_column(GTK_TREE_VIEW(view), col);
      renderer = gtk_cell_renderer_text_new();
      gtk_tree_view_column_pack_start(col, renderer, TRUE);
      gtk_tree_view_column_add_attribute(col, renderer, "text", 0);
   }
}

With this I should get a simple treeview with column headings, but I
get 
nothing.

Adding the following also produces a blank screen.

  tree_store = gtk_tree_store_new (1, G_TYPE_STRING);
  gtk_tree_store_append (tree_store, &parent_iter, NULL);
  gtk_tree_store_set (tree_store, &parent_iter, 0, "Darkeen", -1);
  gtk_tree_store_append (tree_store, &parent_iter, &child_iter);
  gtk_tree_store_set (tree_store, &child_iter, 0, "Profession", -1);
  gtk_tree_store_append (tree_store, &parent_iter, &child_iter);
  gtk_tree_store_set (tree_store, &child_iter, 0, "Race", -1);
  gtk_tree_store_append (tree_store, &parent_iter, &child_iter);
  gtk_tree_store_set (tree_store, &child_iter, 0, "Talents", -1);
  gtk_tree_store_append (tree_store, &parent_iter, &child_iter);
  gtk_tree_store_set (tree_store, &child_iter, 0, "Skills", -1);
  gtk_tree_store_append (tree_store, &parent_iter, &child_iter);
  gtk_tree_store_set (tree_store, &child_iter, 0, "Equipment", -1);
  gtk_tree_view_set_model (GTK_TREE_VIEW(view),
GTK_TREE_MODEL(tree_store));
  g_object_unref (tree_store);
  gtk_widget_show_all(widget);

HELP!



-- 
---
Regards,

Jason Brisbane 


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