Incorporating theme colors into task views.
Change-Id: Ie7166d78dacabe4bff7afdade2d1da9d0651e403
diff --git a/packages/SystemUI/src/com/android/systemui/recents/Utilities.java b/packages/SystemUI/src/com/android/systemui/recents/Utilities.java
index 4a1b3b2..b602f84 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/Utilities.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/Utilities.java
@@ -16,6 +16,7 @@
package com.android.systemui.recents;
+import android.graphics.Color;
import android.graphics.Rect;
/* Common code */
@@ -46,4 +47,19 @@
r.offset(cx, cy);
}
}
+
+ /** Calculates the luminance-preserved greyscale of a given color. */
+ private static int colorToGreyscale(int color) {
+ return Math.round(0.2126f * Color.red(color) + 0.7152f * Color.green(color) +
+ 0.0722f * Color.blue(color));
+ }
+
+ /** Returns the ideal text color to draw on top of a specified background color. */
+ public static int getIdealTextColorForBackgroundColor(int color) {
+ RecentsConfiguration configuration = RecentsConfiguration.getInstance();
+ int greyscale = colorToGreyscale(color);
+ return (greyscale < 128) ? configuration.taskBarViewLightTextColor :
+ configuration.taskBarViewDarkTextColor;
+
+ }
}