LinGui: change language lists from GtkListBox to GtkTreeView

The GtkTreeView is more flexible and more capable.  Languages can be
searched for in the GtkTreeView by focusing the widget and typing what
you want to find.  Double clicking an item in the list will add or
remove it from the "selected" languages list in audio and subtitle track
selection settings.

1 files changed, 29 insertions, 7 deletions

diff --git a/gtk/src/hb-backend.c b/gtk/src/hb-backend.c
index 433e21bfc..8a9ed99b0 100644
--- a/gtk/src/hb-backend.c
+++ b/gtk/src/hb-backend.c
@@ -2899,15 +2899,39 @@ ghb_lookup_combo_option(const gchar *name, const GhbValue *gval)
     return result;
 }
 
-void ghb_init_lang_list_box(GtkListBox *list_box)
+void ghb_init_lang_list_model(GtkTreeView *tv)
 {
-    int ii;
+    GtkTreeViewColumn * column;
+    GtkTreeStore      * ts;
+    GtkCellRenderer   * lang_cell;
+
+    // Store contains:
+    // 0 - Language string to display
+    // 1 - Index of language in the libhb language list
+    ts = gtk_tree_store_new(2, G_TYPE_STRING, G_TYPE_INT);
+    gtk_tree_view_set_model(tv, GTK_TREE_MODEL(ts));
+
+    lang_cell = gtk_cell_renderer_text_new();
+    column = gtk_tree_view_column_new();
+    gtk_tree_view_column_pack_start(column, lang_cell, FALSE);
+    gtk_tree_view_column_add_attribute(column, lang_cell, "markup", 0);
+    gtk_tree_view_append_column(tv, GTK_TREE_VIEW_COLUMN(column));
+}
+
+void ghb_init_lang_list(GtkTreeView *tv, signal_user_data_t *ud)
+{
+    GtkTreeIter    iter;
+    GtkTreeStore * ts;
+    int            ii;
+
+    ghb_init_lang_list_model(tv);
+    ts = GTK_TREE_STORE(gtk_tree_view_get_model(tv));
 
     const iso639_lang_t *iso639;
     for (iso639 = lang_get_next(NULL), ii = 0; iso639 != NULL;
          iso639 = lang_get_next(iso639), ii++)
     {
-        const char *lang;
+        const char * lang;
         if (ii == 0)
         {
             lang = _("Any");
@@ -2921,10 +2945,8 @@ void ghb_init_lang_list_box(GtkListBox *list_box)
         {
             lang = iso639->eng_name;
         }
-        GtkWidget *label = gtk_label_new(lang);
-        g_object_set_data(G_OBJECT(label), "lang_idx", (gpointer)(intptr_t)ii);
-        gtk_widget_show(label);
-        gtk_list_box_insert(list_box, label, -1);
+        gtk_tree_store_append(ts, &iter, NULL);
+        gtk_tree_store_set(ts, &iter, 0, lang, 1, ii, -1);
     }
 }