/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* vim:expandtab:shiftwidth=4:tabstop=4:
 */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#ifndef __nsLookAndFeel
#define __nsLookAndFeel
#include "nsXPLookAndFeel.h"
#include "nsCOMPtr.h"
#include <gtk/gtk.h>

class nsLookAndFeel: public nsXPLookAndFeel {
public:
    nsLookAndFeel();
    virtual ~nsLookAndFeel();

    virtual nsresult NativeGetColor(ColorID aID, nscolor &aResult);
    virtual nsresult GetIntImpl(IntID aID, PRInt32 &aResult);
    virtual nsresult GetFloatImpl(FloatID aID, float &aResult);
    virtual void RefreshImpl();
    virtual PRUnichar GetPasswordCharacterImpl();
    virtual bool GetEchoPasswordImpl();

protected:
    GtkStyle *mStyle;

    // Cached colors, we have to create a dummy widget to actually
    // get the style

    static nscolor sInfoBackground;
    static nscolor sInfoText;
    static nscolor sMenuBackground;
    static nscolor sMenuBarText;
    static nscolor sMenuBarHoverText;
    static nscolor sMenuText;
    static nscolor sMenuHover;
    static nscolor sMenuHoverText;
    static nscolor sButtonBackground;
    static nscolor sButtonText;
    static nscolor sButtonOuterLightBorder;
    static nscolor sButtonInnerDarkBorder;
    static nscolor sOddCellBackground;
    static nscolor sNativeHyperLinkText;
    static nscolor sComboBoxText;
    static nscolor sComboBoxBackground;
    static PRUnichar sInvisibleCharacter;
    static float   sCaretRatio;
    static bool    sMenuSupportsDrag;

    static void InitLookAndFeel();
    void InitWidget() {
        NS_ASSERTION(!mStyle, "already initialized");
        // GtkInvisibles come with a refcount that is not floating
        // (since their initialization code calls g_object_ref_sink) and
        // their destroy code releases that reference (which means they
        // have to be explicitly destroyed, since calling unref enough
        // to cause destruction would lead to *another* unref).
        // However, this combination means that it's actually still ok
        // to use the normal pattern, which is to g_object_ref_sink
        // after construction, and then destroy *and* unref when we're
        // done.  (Though we could skip the g_object_ref_sink and the
        // corresponding g_object_unref, but that's particular to
        // GtkInvisibles and GtkWindows.)
        GtkWidget *widget = gtk_invisible_new();
        g_object_ref_sink(widget); // effectively g_object_ref (see above)

        gtk_widget_ensure_style(widget);
        mStyle = gtk_style_copy(gtk_widget_get_style(widget));

        gtk_widget_destroy(widget);
        g_object_unref(widget);
    }
};

#endif
