fixed little colormap bug and added a test to ensure the calculation of 100 distinct colors

java/com.sap.sailing.gwt.ui.test/src/com/sap/sailing/gwt/ui/test/ColorMapTest.java

@@ -0,0 +1,28 @@
+package com.sap.sailing.gwt.ui.test;
+
+import static org.junit.Assert.assertEquals;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.junit.Test;
+
+import com.sap.sailing.gwt.ui.client.ColorMap;
+
+public class ColorMapTest {
+
+    @Test
+    public void testHundredDistinctColors() {
+        ColorMap<Integer> colorMap = new ColorMap<Integer>();
+        List<String> existingColors = new ArrayList<String>(); 
+        int amountOfDistinctColorsToCreate = 100;
+        for(int i = 1; i <= amountOfDistinctColorsToCreate; i++) {
+            String colorByID = colorMap.getColorByID(i);
+            if(!existingColors.contains(colorByID)) {
+                existingColors.add(colorByID);
+            }
+        }
+        assertEquals(amountOfDistinctColorsToCreate, existingColors.size());
+    }
+
+}

java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/ui/client/ColorMap.java

@@ -27,7 +27,7 @@ public class ColorMap<T> {
         baseColors[3] = new HSVColor(120.0f, 1.0f, 1.0f); // Green
         baseColors[4] = new HSVColor(180.0f, 1.0f, 1.0f); // Cyan
         baseColors[5] = new HSVColor(240.0f, 1.0f, 1.0f); // Blue
-        baseColors[6] = new HSVColor(240.0f, 1.0f, 1.0f); // Pink
+        baseColors[6] = new HSVColor(270.0f, 1.0f, 1.0f); // Pink
         baseColors[7] = new HSVColor(300.0f, 1.0f, 1.0f); // Magenta
 
         idColor = new HashMap<T, String>();
@@ -59,7 +59,7 @@ public class ColorMap<T> {
     private String createHexColor(int index) {
         int baseColorCount = baseColors.length;
         int baseColorsIndex = index % baseColorCount;
-        float brightnessDecrease = Math.round(index / baseColorCount) * 0.75f;
+        float brightnessDecrease = Math.round(index / baseColorCount) * 0.05f;
         float saturationDecrease = Math.round(index / baseColorCount) * 0.05f;
         HSVColor hsvColor = baseColors[baseColorsIndex];
         HSVColor newColor = new HSVColor(hsvColor.getHue(), hsvColor.getSaturation() - saturationDecrease,