ui/views/controls/scrollbar/kennedy_scroll_bar.h

   1 // Copyright (c) 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_CONTROLS_SCROLLBAR_KENNEDY_SCROLL_BAR_H_
   6 #define UI_VIEWS_CONTROLS_SCROLLBAR_KENNEDY_SCROLL_BAR_H_
   7
   8 #include "ui/views/controls/scrollbar/base_scroll_bar.h"
   9
  10 namespace views {
  11
  12 // The scrollbar of kennedy style. Transparent track and grey rectangle
  13 // thumb. Right now it doesn't have the way to share the background,
  14 // so it will accept the background color instead.
  15 class VIEWS_EXPORT KennedyScrollBar : public BaseScrollBar {
  16  public:
  17   explicit KennedyScrollBar(bool horizontal);
  18   ~KennedyScrollBar() override;
  19
  20  protected:
  21   // BaseScrollBar overrides:
  22   gfx::Rect GetTrackBounds() const override;
  23
  24   // ScrollBar overrides:
  25   int GetLayoutSize() const override;
  26
  27   // View overrides:
  28   gfx::Size GetPreferredSize() const override;
  29   void Layout() override;
  30   void OnPaint(gfx::Canvas* canvas) override;
  31
  32  private:
  33   DISALLOW_COPY_AND_ASSIGN(KennedyScrollBar);
  34 };
  35
  36 }  // namespace views
  37
  38 #endif  // UI_VIEWS_CONTROLS_SCROLLBAR_KENNEDY_SCROLL_BAR_H_