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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef VIEWS_TOUCHUI_TOUCH_FACTORY_H_ | 5 #ifndef UI_BASE_TOUCHUI_TOUCH_FACTORY_H_ |
| 6 #define VIEWS_TOUCHUI_TOUCH_FACTORY_H_ | 6 #define UI_BASE_TOUCHUI_TOUCH_FACTORY_H_ |
| 7 #pragma once | 7 #pragma once |
| 8 | 8 |
| 9 #include <bitset> | 9 #include <bitset> |
| 10 #include <vector> | 10 #include <vector> |
| 11 | 11 |
| 12 #include "base/memory/singleton.h" | 12 #include "base/memory/singleton.h" |
| 13 #include "base/timer.h" | 13 #include "base/timer.h" |
| 14 #include "views/views_export.h" | 14 #include "ui/base/ui_export.h" |
| 15 | 15 |
| 16 typedef unsigned long Cursor; | 16 typedef unsigned long Cursor; |
| 17 typedef unsigned long Window; | 17 typedef unsigned long Window; |
| 18 typedef struct _XDisplay Display; | 18 typedef struct _XDisplay Display; |
| 19 typedef union _XEvent XEvent; | 19 typedef union _XEvent XEvent; |
| 20 | 20 |
| 21 namespace views { | 21 namespace ui { |
| 22 | 22 |
| 23 // Functions related to determining touch devices. | 23 // Functions related to determining touch devices. |
| 24 class VIEWS_EXPORT TouchFactory { | 24 class UI_EXPORT TouchFactory { |
| 25 public: | 25 public: |
| 26 // Define the touch params following the Multi-touch Protocol. | 26 // Define the touch params following the Multi-touch Protocol. |
| 27 enum TouchParam { | 27 enum TouchParam { |
| 28 TP_TOUCH_MAJOR = 0, // Length of the touch area. | 28 TP_TOUCH_MAJOR = 0, // Length of the touch area. |
| 29 TP_TOUCH_MINOR, // Width of the touch area. | 29 TP_TOUCH_MINOR, // Width of the touch area. |
| 30 TP_ORIENTATION, // Angle between the X-axis and the major axis of the | 30 TP_ORIENTATION, // Angle between the X-axis and the major axis of the |
| 31 // touch area. | 31 // touch area. |
| 32 TP_PRESSURE, // Pressure of the touch contact. | 32 TP_PRESSURE, // Pressure of the touch contact. |
| 33 | 33 |
| 34 // NOTE: A touch event can have multiple touch points. So when we receive a | 34 // NOTE: A touch event can have multiple touch points. So when we receive a |
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| 184 | 184 |
| 185 // Maximum simultaneous touch points. | 185 // Maximum simultaneous touch points. |
| 186 static const int kMaxTouchPoints = 32; | 186 static const int kMaxTouchPoints = 32; |
| 187 | 187 |
| 188 // A lookup table for slots in use for a touch event. | 188 // A lookup table for slots in use for a touch event. |
| 189 std::bitset<kMaxTouchPoints> slots_used_; | 189 std::bitset<kMaxTouchPoints> slots_used_; |
| 190 | 190 |
| 191 DISALLOW_COPY_AND_ASSIGN(TouchFactory); | 191 DISALLOW_COPY_AND_ASSIGN(TouchFactory); |
| 192 }; | 192 }; |
| 193 | 193 |
| 194 } // namespace views | 194 } // namespace ui |
| 195 | 195 |
| 196 #endif // VIEWS_TOUCHUI_TOUCH_FACTORY_H_ | 196 #endif // UI_BASE_TOUCHUI_TOUCH_FACTORY_H_ |
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