Added GtkComboBoxText api

This is a derived class of GtkComboBox to replace the
gtk_combo_box_*_text() convenience API.

Fixes https://bugzilla.gnome.org/show_bug.cgi?id=612396

Signed-off-by: Javier Jardón <jjardon@gnome.org>

1 files changed, 220 insertions, 0 deletions

diff --git a/gtk/gtkcomboboxtext.c b/gtk/gtkcomboboxtext.c
new file mode 100644
index 0000000000..ed352a3876
--- /dev/null
+++ b/gtk/gtkcomboboxtext.c
@@ -0,0 +1,220 @@
+/* GTK - The GIMP Toolkit
+ *
+ * Copyright (C) 2010 Christian Dywan
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include "gtkcomboboxtext.h"
+#include "gtkcombobox.h"
+#include "gtkcellrenderertext.h"
+#include "gtkcelllayout.h"
+
+G_DEFINE_TYPE (GtkComboBoxText, gtk_combo_box_text, GTK_TYPE_COMBO_BOX);
+
+static void
+gtk_combo_box_text_class_init (GtkComboBoxTextClass *klass)
+{
+}
+
+static void
+gtk_combo_box_text_init (GtkComboBoxText *combo_box)
+{
+  GtkListStore *store;
+  GtkCellRenderer *cell;
+
+  store = gtk_list_store_new (1, G_TYPE_STRING);
+  gtk_combo_box_set_model (GTK_COMBO_BOX (combo_box), GTK_TREE_MODEL (store));
+  g_object_unref (store);
+
+  cell = gtk_cell_renderer_text_new ();
+  gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (combo_box), cell, TRUE);
+  gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (combo_box), cell,
+                                  "text", 0,
+                                  NULL);
+}
+
+/**
+ * gtk_combo_box_text_new:
+ *
+ * Creates a new #GtkComboBoxText, which is a #GtkComboBox just displaying
+ * strings. See gtk_combo_box_entry_new_with_text().
+ *
+ * Return value: A new #GtkComboBoxText
+ *
+ * Since: 2.24
+ */
+GtkWidget *
+gtk_combo_box_text_new (void)
+{
+  return g_object_new (GTK_TYPE_COMBO_BOX_TEXT, NULL);
+}
+
+/**
+ * gtk_combo_box_text_append_text:
+ * @combo_box: A #GtkComboBoxText
+ * @text: A string
+ *
+ * Appends @string to the list of strings stored in @combo_box.
+ *
+ * Since: 2.24
+ */
+void
+gtk_combo_box_text_append_text (GtkComboBoxText *combo_box,
+                                const gchar     *text)
+{
+  GtkListStore *store;
+  GtkTreeIter iter;
+  gint column_type;
+
+  g_return_if_fail (GTK_IS_COMBO_BOX_TEXT (combo_box));
+  g_return_if_fail (text != NULL);
+
+  store = GTK_LIST_STORE (gtk_combo_box_get_model (GTK_COMBO_BOX (combo_box)));
+  g_return_if_fail (GTK_IS_LIST_STORE (store));
+  column_type = gtk_tree_model_get_column_type (GTK_TREE_MODEL (store), 0);
+  g_return_if_fail (column_type == G_TYPE_STRING);
+
+  gtk_list_store_append (store, &iter);
+  gtk_list_store_set (store, &iter, 0, text, -1);
+}
+
+/**
+ * gtk_combo_box_text_insert_text:
+ * @combo_box: A #GtkComboBoxText
+ * @position: An index to insert @text
+ * @text: A string
+ *
+ * Inserts @string at @position in the list of strings stored in @combo_box.
+ *
+ * Since: 2.24
+ */
+void
+gtk_combo_box_text_insert_text (GtkComboBoxText *combo_box,
+                                gint             position,
+                                const gchar     *text)
+{
+  GtkListStore *store;
+  GtkTreeIter iter;
+  gint column_type;
+
+  g_return_if_fail (GTK_IS_COMBO_BOX_TEXT (combo_box));
+  g_return_if_fail (position >= 0);
+  g_return_if_fail (text != NULL);
+
+  store = GTK_LIST_STORE (gtk_combo_box_get_model (GTK_COMBO_BOX (combo_box)));
+  g_return_if_fail (GTK_IS_LIST_STORE (store));
+  column_type = gtk_tree_model_get_column_type (GTK_TREE_MODEL (store), 0);
+  g_return_if_fail (column_type == G_TYPE_STRING);
+
+  gtk_list_store_insert (store, &iter, position);
+  gtk_list_store_set (store, &iter, 0, text, -1);
+}
+
+/**
+ * gtk_combo_box_text_prepend_text:
+ * @combo_box: A #GtkComboBox
+ * @text: A string
+ *
+ * Prepends @string to the list of strings stored in @combo_box.
+ *
+ * Since: 2.24
+ */
+void
+gtk_combo_box_text_prepend_text (GtkComboBoxText *combo_box,
+                                 const gchar     *text)
+{
+  GtkListStore *store;
+  GtkTreeIter iter;
+  gint column_type;
+
+  g_return_if_fail (GTK_IS_COMBO_BOX_TEXT (combo_box));
+  g_return_if_fail (text != NULL);
+
+  store = GTK_LIST_STORE (gtk_combo_box_get_model (GTK_COMBO_BOX (combo_box)));
+  g_return_if_fail (GTK_IS_LIST_STORE (store));
+  column_type = gtk_tree_model_get_column_type (GTK_TREE_MODEL (store), 0);
+  g_return_if_fail (column_type == G_TYPE_STRING);
+
+  gtk_list_store_prepend (store, &iter);
+  gtk_list_store_set (store, &iter, 0, text, -1);
+}
+
+/**
+ * gtk_combo_box_text_remove:
+ * @combo_box: A #GtkComboBox
+ * @position: Index of the item to remove
+ *
+ * Removes the string at @position from @combo_box.
+ *
+ * Since: 2.24
+ */
+void
+gtk_combo_box_text_remove (GtkComboBoxText *combo_box,
+                           gint             position)
+{
+  GtkTreeModel *model;
+  GtkListStore *store;
+  GtkTreeIter iter;
+  gint column_type;
+
+  g_return_if_fail (GTK_IS_COMBO_BOX_TEXT (combo_box));
+  g_return_if_fail (position >= 0);
+
+  model = gtk_combo_box_get_model (GTK_COMBO_BOX (combo_box));
+  store = GTK_LIST_STORE (model);
+  g_return_if_fail (GTK_IS_LIST_STORE (store));
+  column_type = gtk_tree_model_get_column_type (GTK_TREE_MODEL (store), 0);
+  g_return_if_fail (column_type == G_TYPE_STRING);
+
+  if (gtk_tree_model_iter_nth_child (model, &iter, NULL, position))
+    gtk_list_store_remove (store, &iter);
+}
+
+/**
+ * gtk_combo_box_text_get_active_text:
+ * @combo_box: A #GtkComboBoxText
+ *
+ * Returns the currently active string in @combo_box or %NULL if none
+ * is selected.
+ *
+ * Returns: a newly allocated string containing the currently active text.
+ *     Must be freed with g_free().
+ *
+ * Since: 2.24
+ */
+gchar *
+gtk_combo_box_text_get_active_text (GtkComboBoxText *combo_box)
+{
+  GtkTreeIter iter;
+  gchar *text = NULL;
+
+  g_return_val_if_fail (GTK_IS_COMBO_BOX_TEXT (combo_box), NULL);
+
+  if (gtk_combo_box_get_active_iter (GTK_COMBO_BOX (combo_box), &iter))
+    {
+      GtkTreeModel *model;
+      gint column_type;
+
+      model = gtk_combo_box_get_model (GTK_COMBO_BOX (combo_box));
+      g_return_val_if_fail (GTK_IS_LIST_STORE (model), NULL);
+      column_type = gtk_tree_model_get_column_type (model, 0);
+      g_return_val_if_fail (column_type == G_TYPE_STRING, NULL);
+      gtk_tree_model_get (model, &iter, 0, &text, -1);
+    }
+
+  return text;
+}