| // Copyright 2017 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 HighContrastSettings_h |
| #define HighContrastSettings_h |
| |
| namespace blink { |
| |
| enum class HighContrastMode { |
| // Default, drawing is unfiltered. |
| kOff, |
| // For testing only, does a simple 8-bit invert of every RGB pixel component. |
| kSimpleInvertForTesting, |
| kInvertBrightness, |
| kInvertLightness, |
| }; |
| |
| enum class HighContrastImagePolicy { |
| // Apply high-contrast filter to all images. |
| kFilterAll, |
| // Never apply high-contrast filter to any images. |
| kFilterNone, |
| // Apply high-contrast based on image content. |
| kFilterSmart, |
| }; |
| |
| struct HighContrastSettings { |
| HighContrastMode mode = HighContrastMode::kOff; |
| bool grayscale = false; |
| float contrast = 0.0; // Valid range from -1.0 to 1.0 |
| HighContrastImagePolicy image_policy = HighContrastImagePolicy::kFilterAll; |
| }; |
| |
| } // namespace blink |
| |
| #endif // HighContrastSettings_h |
