[Glade-users] tree append

[srinivas at comodo.com (srinivas)]

hi, 

i am developing tree view with glade, i am getting error like;


(gtk_tree_view_get_model): assertion `GTK_IS_TREE_VIEW (tree_view)'
failed
 
 file gtkliststore.c: line 1320 (gtk_list_store_append): assertion
`GTK_IS_LIST_STORE (list_store)' failed
 
 file gtkliststore.c: line 923 (gtk_list_store_set): assertion
`GTK_IS_LIST_STORE (list_store)' failed

here i gave the code.


`on_button_pressed    (GtkButton       *button,
                      gpointer         user_data)
{
   gtk_widget_show (create_window_simple_entry());->displays the window
with entry, and button
        
}


void
on_entry_activate      (GtkEntry        *entry,
                        gpointer         user_data)
{
        
        GtkWidget *win_simp_entry, *win_simp_list, *win_simp_list1,
*button;
        
        win_simp_list1 = create_window_simp_list ();
        win_simp_list = lookup_widget (win_simp_list1,
"window_simp_list");->
to refer main window_simp_entry
                                                        
                                                                                                        |-> 
treeview developed with glade.
        treeview = lookup_widget (win_simp_list, "treeview_simp_list");
        
        
        win_simp_entry = lookup_widget(GTK_WIDGET (button),
"window_simp_entry");
        
        button = lookup_widget (win_simp_entry, "button_simp_entry");
        
        g_signal_connect(entry, "activate",
G_CALLBACK(on_button_entry_pressed), NULL);
        
        g_signal_connect_swapped(button, "clicked",
G_CALLBACK(on_button_entry_pressed), entry);

}


void
on_button_entry_pressed           (GtkButton       *button,
                                   gpointer         user_data)
{
        GtkWidget *win_simp_entry, *win_simp_list, *win_simp_list1,
*entry;
        const gchar *txt;
        
        GtkCellRenderer     *cell;
        GtkTreeViewColumn   *file_column;
        GtkTreeSelection   *sel;
        //GtkListStore       *liststore, *tree_store;
        GtkWidget          *view;

        win_simp_list1 = create_window_simp_list ();
        win_simp_list = lookup_widget(win_simp_list1,
"window_simp_list");
        //treeview = lookup_widget(win_simp_list, "treeview_simp_list");
        win_simp_entry = lookup_widget
(GTK_WIDGET(button),"window_simp_entry");
        entry = lookup_widget (win_simp_entry, "entry_simp_list_entry");
    //button = lookup_widget(win_simp_entry, "button_simp_entry");
        
        g_assert (GTK_IS_ENTRY (entry));
        txt = gtk_entry_get_text (GTK_ENTRY(entry));
                
        if (txt && *txt)
        {
                GtkTreeModel *model;
                GtkTreeIter newrow;
                
                model = gtk_tree_view_get_model (GTK_TREE_VIEW
(treeview));
                
                gtk_list_store_append (GTK_LIST_STORE (model), &newrow);
                
                gtk_list_store_set (GTK_LIST_STORE (model), &newrow,
COL_TEXT, txt,
-1);
                
                gtk_entry_set_text (GTK_ENTRY (entry), " ");
        }
                
        //gtk_widget_show_all (win_simp_list);          
}

static GtkWidget *
create_list_view (void)
{
        GtkWidget *win_simp_entry, *win_simp_list, *win_simp_list1,
*entry;
        const gchar *txt;
        GtkCellRenderer    *cell;
        GtkTreeViewColumn  *file_column;
        GtkTreeSelection   *sel;
        GtkListStore       *tree_store;
        GtkWidget          *view;
        
        win_simp_list1 = create_window_simp_list ();
        win_simp_list = lookup_widget(win_simp_list1,
"window_simp_list");
        treeview = lookup_widget(win_simp_list, "treeview_simp_list");

        tree_store = gtk_list_store_new(1, G_TYPE_STRING);
        
    gtk_tree_view_set_model(GTK_TREE_VIEW(treeview), GTK_TREE_MODEL
(tree_store));
 
        cell = gtk_cell_renderer_text_new();
        
        file_column = gtk_tree_view_column_new_with_attributes
(_("File"),
cell, "text", 0, COL_TEXT);
        
        gtk_tree_view_append_column(GTK_TREE_VIEW(treeview),
GTK_TREE_VIEW_COLUMN(file_column));
        
        return treeview;
        
}


what am i doing wrong;  


Thanks&Regards;

Srinivas