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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CC_INPUT_SCROLLBAR_H_
#define CC_INPUT_SCROLLBAR_H_
#include "cc/base/cc_export.h"
#include "ui/gfx/point.h"
#include "ui/gfx/rect.h"
class SkCanvas;
namespace cc {
enum ScrollbarOrientation { HORIZONTAL, VERTICAL };
enum ScrollDirection { SCROLL_BACKWARD, SCROLL_FORWARD };
// For now, TRACK includes everything but the thumb including background and
// buttons.
enum ScrollbarPart { THUMB, TRACK };
class Scrollbar {
public:
virtual ~Scrollbar() {}
virtual ScrollbarOrientation Orientation() const = 0;
virtual gfx::Point Location() const = 0;
virtual bool IsOverlay() const = 0;
virtual bool HasThumb() const = 0;
virtual int ThumbThickness() const = 0;
virtual int ThumbLength() const = 0;
virtual gfx::Rect TrackRect() const = 0;
virtual void PaintPart(SkCanvas* canvas,
ScrollbarPart part,
gfx::Rect content_rect) = 0;
};
} // namespace cc
#endif // CC_INPUT_SCROLLBAR_H_
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