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 * Copyright (C) 2010 Google Inc. All rights reserved.
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 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
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 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
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 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// This implements the WebThemeEngine API used by the Windows version of
// Chromium to render native form controls like checkboxes, radio buttons,
// and scroll bars.
// The normal implementation (native_theme) renders the controls using either
// the UXTheme theming engine present in XP, Vista, and Win 7, or the "classic"
// theme used if that theme is selected in the Desktop settings.
// Unfortunately, both of these themes render controls differently on the
// different versions of Windows.
//
// In order to ensure maximum consistency of baselines across the different
// Windows versions, we provide a simple implementation for DRT here
// instead. These controls are actually platform-independent (they're rendered
// using Skia) and could be used on Linux and the Mac as well, should we
// choose to do so at some point.
//

#ifndef WebThemeEngineDRT_h
#define WebThemeEngineDRT_h

#include "public/WebThemeEngine.h"
#include <wtf/Noncopyable.h>

class WebThemeEngineDRT : public WebKit::WebThemeEngine, public Noncopyable {
public:
    WebThemeEngineDRT() {}

    // WebThemeEngine methods:
    virtual void paintButton(
        WebKit::WebCanvas*, int part, int state, int classicState,
        const WebKit::WebRect&);

    virtual void paintMenuList(
        WebKit::WebCanvas*, int part, int state, int classicState,
        const WebKit::WebRect&);

    virtual void paintScrollbarArrow(
        WebKit::WebCanvas*, int state, int classicState,
        const WebKit::WebRect&);

    virtual void paintScrollbarThumb(
        WebKit::WebCanvas*, int part, int state, int classicState,
        const WebKit::WebRect&);

    virtual void paintScrollbarTrack(
        WebKit::WebCanvas*, int part, int state, int classicState,
        const WebKit::WebRect&, const WebKit::WebRect& alignRect);

    virtual void paintSpinButton(
        WebKit::WebCanvas*, int part, int state, int classicState,
        const WebKit::WebRect&);

    virtual void paintTextField(
        WebKit::WebCanvas*, int part, int state, int classicState,
        const WebKit::WebRect&, WebKit::WebColor, bool fillContentArea,
        bool drawEdges);

    virtual void paintTrackbar(
        WebKit::WebCanvas*, int part, int state, int classicState,
        const WebKit::WebRect&);

    virtual void paintProgressBar(
        WebKit::WebCanvas*, const WebKit::WebRect& barRect,
        const WebKit::WebRect& valueRect,
        bool determinate, double time);
};

#endif // WebThemeEngineDRT_h