1 files changed, 11 insertions, 0 deletions
diff --git a/app/src/main/java/it/niedermann/owncloud/notes/shared/util/NotesColorUtil.java b/app/src/main/java/it/niedermann/owncloud/notes/shared/util/NotesColorUtil.java
index 035aab9a..70c5316e 100644
--- a/app/src/main/java/it/niedermann/owncloud/notes/shared/util/NotesColorUtil.java
+++ b/app/src/main/java/it/niedermann/owncloud/notes/shared/util/NotesColorUtil.java
@@ -28,6 +28,17 @@ public final class NotesColorUtil {
         return ret;
     }
 
+    public static boolean contrastRatioIsSufficientBigAreas(@ColorInt int colorOne, @ColorInt int colorTwo) {
+        final var key = new ColorPair(colorOne, colorTwo);
+        var ret = CONTRAST_RATIO_SUFFICIENT_CACHE.get(key);
+        if (ret == null) {
+            ret = ColorUtil.INSTANCE.getContrastRatio(colorOne, colorTwo) > 1.47d;
+            CONTRAST_RATIO_SUFFICIENT_CACHE.put(key, ret);
+            return ret;
+        }
+        return ret;
+    }
+
     private static class ColorPair extends Pair<Integer, Integer> {
 
         private ColorPair(@Nullable Integer first, @Nullable Integer second) {