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// Copyright (c) 2011 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 ASH_WM_SHADOW_H_
#define ASH_WM_SHADOW_H_
#pragma once
#include "base/basictypes.h"
#include "base/memory/scoped_ptr.h"
#include "ui/aura_shell/aura_shell_export.h"
#include "ui/gfx/rect.h"
namespace ui {
class Layer;
} // namespace ui
namespace aura_shell {
namespace internal {
class ImageGrid;
// Simple class that draws a drop shadow around content at given bounds.
class AURA_SHELL_EXPORT Shadow {
public:
Shadow();
~Shadow();
// Returns |image_grid_|'s ui::Layer. This is exposed so it can be added to
// the same layer as the content and stacked below it. SetContentBounds()
// should be used to adjust the shadow's size and position (rather than
// applying transformations to this layer).
ui::Layer* layer() const;
const gfx::Rect& content_bounds() const { return content_bounds_; }
void Init();
// Moves and resizes |image_grid_| to frame |content_bounds|.
void SetContentBounds(const gfx::Rect& content_bounds);
private:
scoped_ptr<ImageGrid> image_grid_;
// Bounds of the content that the shadow encloses.
gfx::Rect content_bounds_;
DISALLOW_COPY_AND_ASSIGN(Shadow);
};
} // namespace internal
} // namespace aura_shell
#endif // ASH_WM_SHADOW_H_
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