This patch implements Chromium's Aura gesture recognizer in terms of utouch-grail and utouch-frame …

ui/base/touch/axis.h

+// Copyright (c) 2012 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_BASE_TOUCH_AXIS_H_
+#define UI_BASE_TOUCH_AXIS_H_
+
+#include "base/property_bag.h"
+
+#include <limits>
+#include <string>
+
+namespace ui {
+
+class Axis {
+ public:
+  enum Type {
+    AXIS_TYPE_X = 0, /**< X coordinate */
+    AXIS_TYPE_Y, /**< Y coordinate */
+    AXIS_TYPE_TOUCH_MAJOR,
+    /**< Width along major axis of contact area of touch */
+    AXIS_TYPE_TOUCH_MINOR,
+    /**< Width along minor axis of contact area of touch */
+    AXIS_TYPE_WIDTH_MAJOR, /**< Width along major axis of touch tool */
+    AXIS_TYPE_WIDTH_MINOR, /**< Width along minor axis of touch tool */
+    AXIS_TYPE_ORIENTATION, /**< Orientation of major axis of contact ellipse */
+    AXIS_TYPE_TOOL, /**< Tool type */
+    AXIS_TYPE_BLOB_ID, /**< Blob ID of group of touches */
+    AXIS_TYPE_TRACKING_ID, /**< Tracking ID */
+    AXIS_TYPE_PRESSURE, /**< Pressure */
+    AXIS_TYPE_HOVER_DISTANCE, /**< Hover distance */
+    AXIS_TYPE_UNKNOWN,
+    AXIS_TYPE_LAST
+  };
+
+  Axis()
+      : id_(-1),
+        type_(AXIS_TYPE_UNKNOWN),
+        name_("Unknown axis"),
+        min_(-std::numeric_limits<float>::max()),
+        max_(std::numeric_limits<float>::max()),
+        resolution_(0.f),
+        value_(0.f),
+        payload_(NULL) {
+  }
+
+  ~Axis() {
+    delete(payload_);
+  }
+
+  int id() const { return id_; }
+  void set_id(int id) { id_ = id; }
+
+  Type type() const { return type_; }
+  void set_type(Type type) { type_ = type; }
+
+  const std::string & name() const { return name_; }
+  void set_name(const std::string& name) { name_ = name; }
+
+  float min() const { return min_; }
+  void set_min(float min) { min_ = min; }
+
+  float max() const { return max_; }
+  void set_max(float max) { max_ = max; }
+
+  float resolution() const { return resolution_; }
+  void set_resolution(float res) { resolution_ = res; }
+
+  float value() const { return value_; }
+  void set_value(float value) { value_ = value; }
+
+  base::PropertyBag * payload() {
+    if (payload_ == NULL)
+      payload_ = new base::PropertyBag();
+
+    return payload_;
+  }
+
+ private:
+  int id_;
+  Type type_;
+  std::string name_;
+  float min_;
+  float max_;
+  float resolution_;
+  float value_;
+  base::PropertyBag* payload_;
+};
+}
+#endif  // UI_BASE_TOUCH_AXIS_H_