Completed webkit radiusX, radiusY and rotationAngle handling.

ui/events/gesture_detection/motion_event.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_EVENTS_GESTURE_DETECTION_MOTION_EVENT_H_
 #define UI_EVENTS_GESTURE_DETECTION_MOTION_EVENT_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "base/time/time.h"
 #include "ui/events/gesture_detection/gesture_detection_export.h"
@@ skipping 40 matching lines @@
   // Only valid if |GetAction()| returns ACTION_POINTER_UP or
   // ACTION_POINTER_DOWN.
   virtual int GetActionIndex() const = 0;
   virtual size_t GetPointerCount() const = 0;
   virtual int GetPointerId(size_t pointer_index) const = 0;
   virtual float GetX(size_t pointer_index) const = 0;
   virtual float GetY(size_t pointer_index) const = 0;
   virtual float GetRawX(size_t pointer_index) const = 0;
   virtual float GetRawY(size_t pointer_index) const = 0;
   virtual float GetTouchMajor(size_t pointer_index) const = 0;
+  virtual float GetTouchMinor(size_t pointer_index) const = 0;
+  virtual float GetOrientation(size_t pointer_index) const = 0;
   virtual float GetPressure(size_t pointer_index) const = 0;
   virtual ToolType GetToolType(size_t pointer_index) const = 0;
   virtual int GetButtonState() const = 0;
   virtual base::TimeTicks GetEventTime() const = 0;
 
   // Optional historical data, default implementation provides an empty history.
   virtual size_t GetHistorySize() const;
   virtual base::TimeTicks GetHistoricalEventTime(size_t historical_index) const;
   virtual float GetHistoricalTouchMajor(size_t pointer_index,
                                         size_t historical_index) const;
+  virtual float GetHistoricalTouchMinor(size_t pointer_index,
+                                        size_t historical_index) const;
+  virtual float GetHistoricalOrientation(size_t pointer_index,
+                                        size_t historical_index) const;
   virtual float GetHistoricalX(size_t pointer_index,
                                size_t historical_index) const;
   virtual float GetHistoricalY(size_t pointer_index,
                                size_t historical_index) const;
 
   virtual scoped_ptr<MotionEvent> Clone() const = 0;
   virtual scoped_ptr<MotionEvent> Cancel() const = 0;
 
-  // Utility accessor methods for convenience.
   float GetX() const { return GetX(0); }
   float GetY() const { return GetY(0); }
   float GetRawX() const { return GetRawX(0); }
   float GetRawY() const { return GetRawY(0); }
   float GetRawOffsetX() const { return GetRawX() - GetX(); }
   float GetRawOffsetY() const { return GetRawY() - GetY(); }
+
   float GetTouchMajor() const { return GetTouchMajor(0); }
+  float GetTouchMinor() const { return GetTouchMinor(0); }
+
+  // Returns the orientation of the major axis closkwise from vertical, in

[jdduke (slow), 2014/08/28 15:31:57]

clockwise

[mustaq, 2014/08/28 21:56:02]

Done.

+  // radians. The return value lies in [-PI/2, PI/2].
+  float GetOrientation() const { return GetOrientation(0); }
+
   float GetPressure() const { return GetPressure(0); }
   ToolType GetToolType() const { return GetToolType(0); }
 
   // O(N) search of pointers (use sparingly!). Returns -1 if |id| nonexistent.
   int FindPointerIndexOfId(int id) const;
 };
 
 GESTURE_DETECTION_EXPORT bool operator==(const MotionEvent& lhs,
                                          const MotionEvent& rhs);
 GESTURE_DETECTION_EXPORT bool operator!=(const MotionEvent& lhs,
                                          const MotionEvent& rhs);
 
 }  // namespace ui
 
 #endif  // UI_EVENTS_GESTURE_DETECTION_MOTION_EVENT_H_