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| 1 // Copyright (c) 2010 The Chromium OS Authors. All rights reserved. | 1 // Copyright (c) 2010 The Chromium OS 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 POWER_MANAGER_BACKLIGHT_CONTROLLER_H_ | 5 #ifndef POWER_MANAGER_BACKLIGHT_CONTROLLER_H_ |
| 6 #define POWER_MANAGER_BACKLIGHT_CONTROLLER_H_ | 6 #define POWER_MANAGER_BACKLIGHT_CONTROLLER_H_ |
| 7 | 7 |
| 8 #include <algorithm> | 8 #include <algorithm> |
| 9 | 9 |
| 10 #include "power_manager/backlight_interface.h" | 10 #include "power_manager/backlight_interface.h" |
| 11 #include "power_manager/power_prefs_interface.h" | 11 #include "power_manager/power_prefs_interface.h" |
| 12 #include "power_manager/xidle_monitor.h" | 12 #include "power_manager/xidle_monitor.h" |
| 13 | 13 |
| 14 namespace power_manager { | 14 namespace power_manager { |
| 15 | 15 |
| 16 enum DimState { | 16 enum DimState { |
| 17 BACKLIGHT_ACTIVE, BACKLIGHT_DIM | 17 BACKLIGHT_ACTIVE, BACKLIGHT_DIM |
| 18 }; | 18 }; |
| 19 | 19 |
| 20 enum PowerState { | 20 enum PowerState { |
| 21 BACKLIGHT_OFF, BACKLIGHT_ON | 21 BACKLIGHT_OFF, BACKLIGHT_ON |
| 22 }; | 22 }; |
| 23 | 23 |
| 24 // Control the backlight. | 24 // Control the backlight. |
| 25 class BacklightController { | 25 class BacklightController { |
| 26 public: | 26 public: |
| 27 explicit BacklightController(BacklightInterface* backlight, | 27 explicit BacklightController(BacklightInterface* backlight, |
| 28 PowerPrefsInterface *prefs); | 28 PowerPrefsInterface* prefs); |
| 29 virtual ~BacklightController() {} | 29 virtual ~BacklightController() {} |
| 30 | 30 |
| 31 // Initialize the object. | 31 // Initialize the object. |
| 32 bool Init(); | 32 bool Init(); |
| 33 | 33 |
| 34 // Set |level| to the current brightness level of the backlight as a | 34 // Set |level| to the current brightness level of the backlight as a |
| 35 // percentage. | 35 // percentage. |
| 36 void GetBrightness(int64* level); | 36 void GetBrightness(int64* level); |
| 37 | 37 |
| 38 // Increase / decrease brightness by specified offset. | 38 // Increase / decrease brightness by specified offset. |
| (...skipping 11 matching lines...) Expand all Loading... | |
| 50 | 50 |
| 51 // Read brightness settings from the system and apply any changes made | 51 // Read brightness settings from the system and apply any changes made |
| 52 // by other programs to our local view. | 52 // by other programs to our local view. |
| 53 int64 ReadBrightness(); | 53 int64 ReadBrightness(); |
| 54 | 54 |
| 55 // Write brightness based on current settings. Returns new brightness level. | 55 // Write brightness based on current settings. Returns new brightness level. |
| 56 int64 WriteBrightness(); | 56 int64 WriteBrightness(); |
| 57 | 57 |
| 58 void set_als_brightness_level(int64 level) { als_brightness_level_ = level; } | 58 void set_als_brightness_level(int64 level) { als_brightness_level_ = level; } |
| 59 | 59 |
| 60 int64 plugged_brightness_offset() { return plugged_brightness_offset_; } | 60 int64 plugged_brightness_offset() { return plugged_brightness_offset_; } |
|
tfarina
2010/06/05 01:10:26
I really would like to make this and the below get
| |
| 61 void set_plugged_brightness_offset(int64 offset) { | 61 void set_plugged_brightness_offset(int64 offset) { |
| 62 plugged_brightness_offset_ = offset; | 62 plugged_brightness_offset_ = offset; |
| 63 } | 63 } |
| 64 | 64 |
| 65 int64 unplugged_brightness_offset() { return unplugged_brightness_offset_; } | 65 int64 unplugged_brightness_offset() { return unplugged_brightness_offset_; } |
| 66 void set_unplugged_brightness_offset(int64 offset) { | 66 void set_unplugged_brightness_offset(int64 offset) { |
| 67 unplugged_brightness_offset_ = offset; | 67 unplugged_brightness_offset_ = offset; |
| 68 } | 68 } |
| 69 | 69 |
| 70 private: | 70 private: |
| 71 // Clamp |x| to fit between 0 and 100. | 71 // Clamp |x| to fit between 0 and 100. |
| 72 int64 clamp(int64 x) { return std::min(100LL, std::max(0LL, x)); } | 72 int64 clamp(int64 x) { return std::min(100LL, std::max(0LL, x)); } |
|
tfarina
2010/06/05 01:08:56
In a follow up patch, maybe could we rename this t
| |
| 73 | 73 |
| 74 void ReadPrefs(); | 74 void ReadPrefs(); |
| 75 void WritePrefs(); | 75 void WritePrefs(); |
| 76 | 76 |
| 77 // Backlight used for dimming. Non-owned. | 77 // Backlight used for dimming. Non-owned. |
| 78 BacklightInterface* backlight_; | 78 BacklightInterface* backlight_; |
| 79 | 79 |
| 80 // Interface for saving preferences. Non-owned. | 80 // Interface for saving preferences. Non-owned. |
| 81 PowerPrefsInterface* prefs_; | 81 PowerPrefsInterface* prefs_; |
| 82 | 82 |
| (...skipping 19 matching lines...) Expand all Loading... | |
| 102 // Min and max brightness for backlight object. | 102 // Min and max brightness for backlight object. |
| 103 int64 min_; | 103 int64 min_; |
| 104 int64 max_; | 104 int64 max_; |
| 105 | 105 |
| 106 DISALLOW_COPY_AND_ASSIGN(BacklightController); | 106 DISALLOW_COPY_AND_ASSIGN(BacklightController); |
| 107 }; | 107 }; |
| 108 | 108 |
| 109 } // namespace power_manager | 109 } // namespace power_manager |
| 110 | 110 |
| 111 #endif // POWER_MANAGER_BACKLIGHT_CONTROLLER_H_ | 111 #endif // POWER_MANAGER_BACKLIGHT_CONTROLLER_H_ |
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