Allow color matrix to be controlled by secure setting (08e7fa9b) · Commits · e / os / android_frameworks_base

core/java/android/provider/Settings.java

+9 −0

Original line number	Diff line number	Diff line
		@@ -4911,6 +4911,15 @@ public final class Settings {
		public static final String ACCESSIBILITY_DISPLAY_DALTONIZER =
		"accessibility_display_daltonizer";

		/**
		* Float list that specifies the color matrix to apply to
		* the display. Valid values are defined in AccessibilityManager.
		*
		* @hide
		*/
		public static final String ACCESSIBILITY_DISPLAY_COLOR_MATRIX =
		"accessibility_display_color_matrix";

		/**
		* Setting that specifies whether automatic click when the mouse pointer stops moving is
		* enabled.

+7 −0

Original line number	Diff line number	Diff line
		@@ -3987,6 +3987,9 @@ public class AccessibilityManagerService extends IAccessibilityManager.Stub {
		private final Uri mDisplayDaltonizerUri = Settings.Secure.getUriFor(
		Settings.Secure.ACCESSIBILITY_DISPLAY_DALTONIZER);

		private final Uri mDisplayColorMatrixUri = Settings.Secure.getUriFor(
		Settings.Secure.ACCESSIBILITY_DISPLAY_COLOR_MATRIX);

		private final Uri mHighTextContrastUri = Settings.Secure.getUriFor(
		Settings.Secure.ACCESSIBILITY_HIGH_TEXT_CONTRAST_ENABLED);

		@@ -4016,6 +4019,8 @@ public class AccessibilityManagerService extends IAccessibilityManager.Stub {
		mDisplayDaltonizerEnabledUri, false, this, UserHandle.USER_ALL);
		contentResolver.registerContentObserver(
		mDisplayDaltonizerUri, false, this, UserHandle.USER_ALL);
		contentResolver.registerContentObserver(
		mDisplayColorMatrixUri, false, this, UserHandle.USER_ALL);
		contentResolver.registerContentObserver(
		mHighTextContrastUri, false, this, UserHandle.USER_ALL);
		}
		@@ -4066,6 +4071,8 @@ public class AccessibilityManagerService extends IAccessibilityManager.Stub {
		if (readDisplayColorAdjustmentSettingsLocked(userState)) {
		updateDisplayColorAdjustmentSettingsLocked(userState);
		}
		} else if (mDisplayColorMatrixUri.equals(uri)) {
		updateDisplayColorAdjustmentSettingsLocked(userState);
		} else if (mHighTextContrastUri.equals(uri)) {
		if (readHighTextContrastEnabledSettingLocked(userState)) {
		onUserStateChangedLocked(userState);

+15 −0

Original line number	Diff line number	Diff line
		@@ -107,9 +107,24 @@ class DisplayAdjustmentUtils {
		setDaltonizerMode(AccessibilityManager.DALTONIZER_DISABLED);
		}

		String matrix = Settings.Secure.getStringForUser(cr,
		Settings.Secure.ACCESSIBILITY_DISPLAY_COLOR_MATRIX, userId);
		if (matrix != null) {
		colorMatrix = multiply(colorMatrix, getMatrix(matrix));
		}

		setColorTransform(colorMatrix);
		}

		private static float[] getMatrix(String matrix) {
		String[] strValues = matrix.split(",");
		float[] values = new float[strValues.length];
		for (int i = 0; i < values.length; i++) {
		values[i] = Float.parseFloat(strValues[i]);
		}
		return values;
		}

		private static float[] multiply(float[] matrix, float[] other) {
		if (matrix == null) {
		return other;