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