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1 // Copyright 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #ifndef UI_VIEWS_SHADOW_BORDER_H_
6 #define UI_VIEWS_SHADOW_BORDER_H_
7 
8 #include "third_party/skia/include/core/SkColor.h"
9 #include "ui/views/border.h"
10 #include "ui/views/views_export.h"
11 
12 namespace views {
13 
14 // Creates a css box-shadow like border which fades into SK_ColorTRANSPARENT.
15 class VIEWS_EXPORT ShadowBorder : public views::Border {
16  public:
17   ShadowBorder(int blur,
18                SkColor color,
19                int vertical_offset,
20                int horizontal_offset);
21   virtual ~ShadowBorder();
22 
23  protected:
24   // Overridden from views::Border:
25   virtual void Paint(const views::View& view, gfx::Canvas* canvas) OVERRIDE;
26   virtual gfx::Insets GetInsets() const OVERRIDE;
27   virtual gfx::Size GetMinimumSize() const OVERRIDE;
28 
29  private:
30   // Blur amount of the shadow in pixels. For details on how blur is defined see
31   // comments for blur_ in class ShadowValue.
32   const int blur_;
33 
34   // Shadow color.
35   const SkColor color_;
36 
37   // Number of pixels to shift shadow to bottom.
38   const int vertical_offset_;
39 
40   // Number of pixels to shift shadow to right.
41   const int horizontal_offset_;
42 
43   DISALLOW_COPY_AND_ASSIGN(ShadowBorder);
44 };
45 
46 }  // namespace views
47 
48 #endif  // UI_VIEWS_SHADOW_BORDER_H_
49