1 files changed, 0 insertions, 117 deletions
diff --git a/ui/base/x/valuators.h b/ui/base/x/valuators.h
deleted file mode 100644
index 6a3168a..0000000
--- a/ui/base/x/valuators.h
+++ /dev/null
@@ -1,117 +0,0 @@
-// 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_X_VALUATORS_H_
-#define UI_BASE_X_VALUATORS_H_
-
-#include "base/basictypes.h"
-#include "ui/base/ui_export.h"
-
-template <typename T> struct DefaultSingletonTraits;
-
-typedef union _XEvent XEvent;
-
-namespace ui {
-
-// A valuator is not reported in an XEvent if it hasn't changed from the
-// previous event from the same device. As a result, it is necessary to track
-// the last reported valuator values for a specific device.
-// Right now, this is only used to keep track of valuators for events coming in
-// from touch-devices, but it can be used for other devices as well.
-class UI_EXPORT ValuatorTracker {
- private:
-  ValuatorTracker();
-  ~ValuatorTracker();
-
- public:
-  // Define the valuators following the Multi-touch Protocol.
-  enum Valuator {
-    VAL_TOUCH_MAJOR = 0,   // Length of the touch area.
-    VAL_TOUCH_MINOR,       // Width of the touch area.
-    VAL_ORIENTATION,       // Angle between the X-axis and the major axis of the
-                           // touch area.
-    VAL_PRESSURE,          // Pressure of the touch contact.
-
-    // NOTE: A touch event can have multiple touch points. So when we receive a
-    // touch event, we need to determine which point triggered the event.
-    // A touch point can have both a 'Slot ID' and a 'Tracking ID', and they can
-    // be (in fact, usually are) different. The 'Slot ID' ranges between 0 and
-    // (X - 1), where X is the maximum touch points supported by the device. The
-    // 'Tracking ID' can be any 16-bit value. With XInput 2.0, an XI_Motion
-    // event that comes from a currently-unused 'Slot ID' indicates the creation
-    // of a new touch point, and any event that comes with a 0 value for
-    // 'Tracking ID' marks the removal of a touch point. During the lifetime of
-    // a touchpoint, we use the 'Slot ID' as its identifier. The XI_ButtonPress
-    // and XI_ButtonRelease events are ignored.
-#if !defined(USE_XI2_MT)
-    VAL_SLOT_ID,           // ID of the finger that triggered a touch event
-                           // (useful when tracking multiple simultaneous
-                           // touches)
-#endif
-    // NOTE for XInput MT: 'Tracking ID' is provided in every touch event to
-    // track individual touch. 'Tracking ID' is an unsigned 32-bit value and
-    // is increased for each new touch. It will wrap back to 0 when reaching
-    // the numerical limit.
-    VAL_TRACKING_ID,       // ID of the touch point.
-
-    // Kernel timestamp from touch screen (if available).
-    VAL_TOUCH_RAW_TIMESTAMP,
-
-    VAL_LAST_ENTRY
-  };
-
-  // Returns the ValuatorTracker singleton.
-  static ValuatorTracker* GetInstance();
-
-  // Extract the Valuator from the XEvent. Return true and the value is set
-  // if the Valuator is found, false and value unchanged if the Valuator
-  // is not found.
-  bool ExtractValuator(const XEvent& xev, Valuator val, double* value);
-
-  // Normalize the Valuator with value on deviceid to fall into [0, 1].
-  // *value = (*value - min_value_of_tp) / (max_value_of_tp - min_value_of_tp)
-  // Returns true and sets the normalized value in|value| if normalization is
-  // successful. Returns false and |value| is unchanged otherwise.
-  bool NormalizeValuator(unsigned int deviceid, Valuator val, double* value);
-
-  // Extract the range of the Valuator. Return true if the range is available
-  // and written into min & max, false if the range is not available.
-  bool GetValuatorRange(unsigned int deviceid,
-                        Valuator val,
-                        double* min,
-                        double* max);
-
-  // Sets up the internal bookkeeping of the valuator information. It currently
-  // does this for touch devices only.
-  void SetupValuator();
-
- private:
-  // Requirement for Singleton.
-  friend struct DefaultSingletonTraits<ValuatorTracker>;
-
-  static const int kMaxDeviceNum = 128;
-
-  // Index table to find the valuator for the Valuator on the specific device
-  // by valuator_lookup_[device_id][valuator]. Use 2-D array to get fast
-  // index at the expense of space. If the kMaxDeviceNum grows larger so that
-  // the space waste becomes a concern, the 2D lookup table can be replaced by a
-  // hash map.
-  signed char valuator_lookup_[kMaxDeviceNum][VAL_LAST_ENTRY];
-
-  // Index table to find the min & max value of the Valuator on a specific
-  // device.
-  double valuator_min_[kMaxDeviceNum][VAL_LAST_ENTRY];
-  double valuator_max_[kMaxDeviceNum][VAL_LAST_ENTRY];
-
-  // Table to keep track of the last seen value for the specified valuator for
-  // a device. Defaults to 0 if the valuator was not specified in an earlier
-  // event.
-  double last_seen_valuator_[kMaxDeviceNum][VAL_LAST_ENTRY];
-
-  DISALLOW_COPY_AND_ASSIGN(ValuatorTracker);
-};
-
-}  // namespace ui
-
-#endif  // UI_BASE_X_VALUATORS_H_