styleproperty: Make _gtk_style_property_parse_value() return a CssValue

Also split out initial/inherit handling into a custom GtkCssValue class.

1 files changed, 59 insertions, 0 deletions

diff --git a/gtk/gtkcssinheritvalue.c b/gtk/gtkcssinheritvalue.c
new file mode 100644
index 0000000000..99405bbb87
--- /dev/null
+++ b/gtk/gtkcssinheritvalue.c
@@ -0,0 +1,59 @@
+/* GTK - The GIMP Toolkit
+ * Copyright (C) 2011 Red Hat, Inc.
+ *
+ * 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 "gtkcssinheritvalueprivate.h"
+
+struct _GtkCssValue {
+  GTK_CSS_VALUE_BASE
+};
+
+static void
+gtk_css_value_inherit_free (GtkCssValue *value)
+{
+  /* Can only happen if the unique value gets unreffed too often */
+  g_assert_not_reached ();
+}
+
+static void
+gtk_css_value_inherit_print (const GtkCssValue *value,
+                             GString           *string)
+{
+  g_string_append (string, "inherit");
+}
+
+static const GtkCssValueClass GTK_CSS_VALUE_INHERIT = {
+  gtk_css_value_inherit_free,
+  gtk_css_value_inherit_print
+};
+
+static GtkCssValue inherit = { &GTK_CSS_VALUE_INHERIT, 1 };
+
+GtkCssValue *
+_gtk_css_inherit_value_new (void)
+{
+  return _gtk_css_value_ref (&inherit);
+}
+
+gboolean
+_gtk_css_value_is_inherit (const GtkCssValue *value)
+{
+  g_return_val_if_fail (value != NULL, FALSE);
+
+  return value == &inherit;
+}