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