ui/views/shadow_border.h

   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   ~ShadowBorder() override;
  22
  23  protected:
  24   // Overridden from views::Border:
  25   void Paint(const views::View& view, gfx::Canvas* canvas) override;
  26   gfx::Insets GetInsets() const override;
  27   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_