Re: Combobox disable item

[cecashon aol com]

Add an extra column to your list and use that to set your "sensitive" property for the row. 

Eric


/*
    gcc -Wall combo_filter2.c -o combo_filter2 `pkg-config --cflags --libs gtk+-3.0`
    Tested on GTK3.18 and Ubuntu16.04
*/
#include<gtk/gtk.h>

static void combo2_changed(GtkComboBox *combo2, gpointer data)
  {
    gint combo_row=gtk_combo_box_get_active(combo2);
    if(combo_row==1)
      {
        GtkTreeIter iter;
        gtk_tree_model_get_iter_from_string(GTK_TREE_MODEL(data), &iter, "1");
        gtk_list_store_set(GTK_LIST_STORE(data), &iter, 1, FALSE, -1);
      }
    else
      {
        GtkTreeIter iter;
        gtk_tree_model_get_iter_from_string(GTK_TREE_MODEL(data), &iter, "1");
        gtk_list_store_set(GTK_LIST_STORE(data), &iter, 1, TRUE, -1);
      }
  }
int main(int argc, char *argv[])
  {
    gtk_init(&argc, &argv);

    GtkWidget *window=gtk_window_new(GTK_WINDOW_TOPLEVEL);
    gtk_window_set_title(GTK_WINDOW(window), "Combo Filter2");
    gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
    gtk_window_set_default_size(GTK_WINDOW(window), 300, 100);
    g_signal_connect(window, "destroy", G_CALLBACK(gtk_main_quit), NULL);

    GtkTreeIter iter;
    GtkListStore *store=gtk_list_store_new(2, G_TYPE_STRING, G_TYPE_BOOLEAN);
    gtk_list_store_append(store, &iter);
    gtk_list_store_set(store, &iter, 0, "Scandvb", 1, TRUE, -1);
    gtk_list_store_append(store, &iter);
    gtk_list_store_set(store, &iter, 0, "DVB module", 1, TRUE, -1);
    gtk_list_store_append(store, &iter);
    gtk_list_store_set(store, &iter, 0, "DVDb5-Scan", 1, TRUE, -1);
    gtk_list_store_append(store, &iter);

    GtkCellRenderer *renderer=gtk_cell_renderer_text_new();

    GtkWidget *combo1=gtk_combo_box_new_with_model(GTK_TREE_MODEL(store));
    gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(combo1), renderer, TRUE);
    gtk_widget_set_hexpand(combo1, TRUE);
    gtk_widget_set_vexpand(combo1, TRUE);
    gtk_combo_box_set_active(GTK_COMBO_BOX(combo1), 0);
    gtk_cell_layout_set_attributes(GTK_CELL_LAYOUT(combo1), GTK_CELL_RENDERER(renderer), "text", 0, 
"sensitive", 1, NULL);

    GtkWidget *combo2=gtk_combo_box_text_new();
    gtk_combo_box_text_insert(GTK_COMBO_BOX_TEXT(combo2), 0, "1", "Show All");
    gtk_combo_box_text_insert(GTK_COMBO_BOX_TEXT(combo2), 1, "2", "Disable DVB module");
    gtk_combo_box_set_active(GTK_COMBO_BOX(combo2), 0);
    gtk_widget_set_hexpand(combo2, TRUE);
    gtk_widget_set_vexpand(combo2, TRUE);
    g_signal_connect(combo2, "changed", G_CALLBACK(combo2_changed), store);

    g_object_unref(G_OBJECT(store));

    GtkWidget *grid=gtk_grid_new();
    gtk_grid_attach(GTK_GRID(grid), combo1, 0, 0, 1, 1);
    gtk_grid_attach(GTK_GRID(grid), combo2, 0, 1, 1, 1);
    gtk_container_add(GTK_CONTAINER(window), grid);
   
    gtk_widget_show_all(window);
    gtk_main();
    return 0;   
  }