Re: GtkTreeView: getting selection

[ginxd <ginxd btopenworld com>]

Romain Lievin wrote:

> Hi,
>
> I am developping the GTK+ version of the new 2.5 kernel configurator...
>
> I am using GtkTreeModel & GtkTreeView for displaying a tree.
> I would like to retrieve the row and column which have been clicked by the
> user.
> The code below works unless you horizontally scroll the view.
> Why ?
>
> Is there any better way for doing this ?
>  
I would tend to make a function that returns the values you want as below:


gboolean model_get_selection(gchar **name, gchar **jid)
{
 GtkTreeSelection *selection;
 GtkTreeModel *model = GTK_TREE_MODEL(treestore);
 GtkTreeIter iter;

 if(name == NULL || jid == NULL)
   {
     g_warning("model_get_selection: name or JID pointers passed were 
NULL");
     return FALSE;
   }

 selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(treeview));
 if(gtk_tree_selection_get_selected(selection,&model,&iter) == FALSE)
   return FALSE;

 gtk_tree_model_get(model, &iter,
            COL_ROSTER_NAME, name,
            COL_ROSTER_JID, jid,
            -1);    

 return TRUE;
}

Note.  This doesnt work for mutliple selections.
Hope it helps,

Martyn


> Thanks, Romain.
>
>
> [================ snippet ======================]
> gboolean
> on_treeview1_button_press_event        (GtkWidget       *widget,
>                                        GdkEventButton  *event,
>                                        gpointer         user_data)
> {
>         GtkTreeView       *view  = GTK_TREE_VIEW (tree_wnd);
>         GtkTreePath       *path;
>         GtkTreeViewColumn *column;
>         GtkTreeIter        iter;
>         struct menu       *menu;
>         gint cx, cy;
>         gint tx, ty;
>         gint wx, wy;
>
>         tx = event->x;
>         ty = event->y;
>
>         gtk_tree_view_tree_to_widget_coords (view, tx, ty, &wx, &wy);
>         gtk_tree_view_get_path_at_pos (view, wx, wy, &path, &column, &cx, &cy);
>         //printf("%i %i %i %i %i %i\n", tx, ty, wx, wy, cx, cy);
>
>         gtk_tree_view_get_cursor (view, &path, &column);
>         if(path == NULL) {
>                 g_warning("button_press_event: path is NULL !\n");
>                 return FALSE;
>         }
>
>         gtk_tree_model_get_iter (model, &iter, path);
>         gtk_tree_model_get (model, &iter, PTR_COLUMN, &menu, -1);
>
>         change_sym_value(menu, column2index(column));
>         set_node(&iter, menu, fill_row(menu));
>
>         return FALSE;
> }
> [================ snippet ======================]
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