Added LAF interface.

widget/public/nsILookAndFeel.h

@@ -0,0 +1,59 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "NPL"); you may not use this file except in
+ * compliance with the NPL.  You may obtain a copy of the NPL at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the NPL is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+ * for the specific language governing rights and limitations under the
+ * NPL.
+ *
+ * The Initial Developer of this code under the NPL is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+ * Reserved.
+ */
+
+#ifndef __nsILookAndFeel
+#define __nsILookAndFeel
+#include "nsISupports.h"
+#include "nsColor.h"
+
+// {21B51DE1-21A3-11d2-B6E0-00805F8A2676}
+#define NS_ILOOKANDFEEL_IID \
+{ 0x21b51de1, 0x21a3, 0x11d2, \
+    { 0xb6, 0xe0, 0x0, 0x80, 0x5f, 0x8a, 0x26, 0x76 } }
+
+class nsILookAndFeel: public nsISupports {
+public:
+  typedef enum {
+    WindowBackground,
+    WindowForeground,
+    WidgetBackground,
+    WidgetForeground,
+    WidgetSelectBackground,
+    WidgetSelectForeground,
+    Widget3DHighlight,
+    Widget3DShadow,
+    TextBackground,
+    TextForeground,
+    TextSelectBackground,
+    TextSelectForeground
+  } nsColorID;
+
+  typedef enum {
+    WindowTitleHeight,
+    WindowBorderWidth,
+    WindowBorderHeight,
+    Widget3DBorder
+  } nsMetricID;
+
+  NS_IMETHOD_(nscolor) GetColor(nsColorID aID) = 0;
+  NS_IMETHOD_(PRInt32) GetMetric(nsMetricID aID) = 0;
+};
+
+#define nsLAF nsILookAndFeel
+
+#endif /* __nsILookAndFeel */