Hi everybody.
I have a problem on reading the actually displayed content of a combobox. I
created a combobox that contains some strings and I want to recover the
actually displayed string when i press the "Find" button (that is a button in
the same window of the combobox).
The problem is that the 'gtk_tree_model_get_iter' function always returns FALSE
('getted' is FALSE when running app).
I tried also with the following code:
gint row;
row = gtk_combo_box_get_active (combo);
path = gtk_tree_path_new_from_indices (row, -1);
but without success. :-(
Here are my questions:
1) how can I get a valid iter from the tree model? Is there something wrong with
the path?
2) when I obtain the current iter, how can I get the selected entry of the
combobox? I need to save it to a string for subsequent processing.
Thanks in advance.
Omar
enum {
STRING_COL,
NUM_COL
};
/* main function */
...
model = create_model();
c.Combo = gtk_combo_box_new_with_model(GTK_TREE_MODEL(model));
add_renderer(GTK_COMBO_BOX(c.Combo));
g_object_unref(model);
...
/* create_model function */
static GtkTreeModel *
create_model ( void ) {
GtkTreeIter iter;
GtkTreeStore *store = NULL;
GtkTreeSelection *select = NULL;
GtkWidget *treeview = NULL;
ll *tmp = top->ref->first;
store = gtk_tree_store_new(NUM_COL, G_TYPE_STRING);
gtk_tree_store_append(store, &iter, NULL);
gtk_tree_store_set(store, &iter,
STRING_COL, "<Nothing>",
-1);
while (tmp != NULL) {
gtk_tree_store_append(store, &iter, NULL);
gtk_tree_store_set(store, &iter,
STRING_COL, tmp->content,
-1);
tmp = tmp->next;
}
treeview = gtk_tree_view_new_with_model(GTK_TREE_MODEL(store));
select = gtk_tree_view_get_selection(GTK_TREE_VIEW(treeview));
gtk_tree_selection_set_mode(select, GTK_SELECTION_SINGLE);
return GTK_TREE_MODEL(store);
}
/* add_renderer function */
static void add_renderer ( GtkComboBox *combo ) {
GtkCellRenderer *render = NULL;
GtkTreePath *path = NULL;
GtkTreeModel *mod = NULL;
GtkTreeIter iter;
gboolean getted;
gint row;
render = gtk_cell_renderer_text_new();
gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(combo), render, TRUE);
gtk_cell_layout_set_attributes(GTK_CELL_LAYOUT(combo), render,
"text", STRING_COL,
NULL);
path = gtk_tree_path_new_from_indices(0, 8, -1);
mod = gtk_combo_box_get_model(combo);
getted = gtk_tree_model_get_iter(mod, &iter, path);
printf("getted is %s\n", (getted) ? "TRUE" : "FALSE");
gtk_tree_path_free(path);
gtk_combo_box_set_active_iter(combo, &iter);
}
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