Fix incorrect color handling.

6 years ago · f230c2ac2c
parent b080c7dab9
commit f230c2ac2c
1 changed files with 7 additions and 2 deletions
--- a/SignalMessaging/utils/UIColor+Helper.swift
+++ b/SignalMessaging/utils/UIColor+Helper.swift
@ -10,9 +10,14 @@ extension UIColor {
            // Round values so we get closer values to Desktop
            let currentHueDegrees = (currentHue * 360.0).rounded()
            let normalizedDegrees = fmod(degrees, 360.0).rounded()
-            let newHue = (currentHueDegrees + normalizedDegrees) / 360.0
            
-            return UIColor(hue: newHue,
+            // Make sure we're in the range 0 to 360
+            var newHue = fmod(currentHueDegrees + normalizedDegrees, 360.0)
+            if (newHue < 0) { newHue = 360 + newHue }
+            
+            let decimalHue = (currentHueDegrees + normalizedDegrees) / 360.0
+            
+            return UIColor(hue: decimalHue,
                           saturation: currentSaturation,
                           brightness: currentBrigthness,
                           alpha: 1.0)