ui/base/touch/selection_bound.h

   1 // Copyright 2014 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_BASE_TOUCH_SELECTION_BOUND_H_
   6 #define UI_BASE_TOUCH_SELECTION_BOUND_H_
   7
   8 #include "ui/base/ui_base_export.h"
   9 #include "ui/gfx/geometry/point.h"
  10 #include "ui/gfx/geometry/point_f.h"
  11
  12 namespace gfx {
  13 class Rect;
  14 class RectF;
  15 }
  16
  17 namespace ui {
  18
  19 // Bound of a selection end-point.
  20 class UI_BASE_EXPORT SelectionBound {
  21  public:
  22   enum Type {
  23     LEFT,
  24     RIGHT,
  25     CENTER,
  26     EMPTY,
  27     LAST = EMPTY
  28   };
  29
  30   SelectionBound();
  31   SelectionBound(const SelectionBound& other);
  32   ~SelectionBound();
  33
  34   Type type() const { return type_; }
  35   void set_type(Type value) { type_ = value; }
  36
  37   const gfx::PointF& edge_top() const { return edge_top_; }
  38   const gfx::Point& edge_top_rounded() const { return edge_top_rounded_; }
  39   void SetEdgeTop(const gfx::PointF& value);
  40
  41   const gfx::PointF& edge_bottom() const { return edge_bottom_; }
  42   const gfx::Point& edge_bottom_rounded() const { return edge_bottom_rounded_; }
  43   void SetEdgeBottom(const gfx::PointF& value);
  44
  45   void SetEdge(const gfx::PointF& top, const gfx::PointF& bottom);
  46
  47   bool visible() const { return visible_; }
  48   void set_visible(bool value) { visible_ = value; }
  49
  50   // Returns the vertical difference between rounded top and bottom.
  51   int GetHeight() const;
  52
  53  private:
  54   Type type_;
  55   gfx::PointF edge_top_;
  56   gfx::PointF edge_bottom_;
  57   gfx::Point edge_top_rounded_;
  58   gfx::Point edge_bottom_rounded_;
  59   bool visible_;
  60 };
  61
  62 UI_BASE_EXPORT bool operator==(const SelectionBound& lhs,
  63                                const SelectionBound& rhs);
  64 UI_BASE_EXPORT bool operator!=(const SelectionBound& lhs,
  65                                const SelectionBound& rhs);
  66
  67 UI_BASE_EXPORT gfx::Rect RectBetweenSelectionBounds(const SelectionBound& b1,
  68                                                     const SelectionBound& b2);
  69
  70 UI_BASE_EXPORT gfx::RectF RectFBetweenSelectionBounds(const SelectionBound& b1,
  71                                                       const SelectionBound& b2);
  72
  73 }  // namespace ui
  74
  75 #endif  // UI_BASE_TOUCH_SELECTION_BOUND_H_