ui/views/focus_border.h

   1 // Copyright (c) 2012 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_FOCUS_BORDER_H_
   6 #define UI_VIEWS_FOCUS_BORDER_H_
   7
   8 #include "ui/views/views_export.h"
   9 #include "base/basictypes.h"
  10
  11 namespace gfx {
  12 class Canvas;
  13 }
  14
  15 namespace views {
  16 class View;
  17
  18 ////////////////////////////////////////////////////////////////////////////////
  19 //
  20 // Focus border class.
  21 //
  22 // The focus border class is used to display an indication of focus on a view.
  23 // To set a focus border on a view, call SetFocusBorder on the view.  Once set
  24 // on a view, the focus border is owned by the view.
  25 //
  26 ////////////////////////////////////////////////////////////////////////////////
  27
  28 class VIEWS_EXPORT FocusBorder {
  29  public:
  30   virtual ~FocusBorder();
  31
  32   // Creates the default inset dashed line focus border.
  33   static FocusBorder* CreateDashedFocusBorder();
  34   static FocusBorder* CreateDashedFocusBorder(
  35       int left, int top, int right, int bottom);
  36
  37   // Renders the focus border for the specified view.
  38   virtual void Paint(const View& view, gfx::Canvas* canvas) const = 0;
  39
  40  protected:
  41   FocusBorder();
  42
  43  private:
  44   DISALLOW_COPY_AND_ASSIGN(FocusBorder);
  45 };
  46
  47 }  // namespace views
  48
  49 #endif  // UI_VIEWS_FOCUS_BORDER_H_