Added new Constructor to SelectioGroup class.

Fixed a bug in ColorNuance behaviour.

TULIP/src/lu/list/itis/dkd/tui/bootstrapping/BootstrappingUtils.java

@@ -895,7 +895,7 @@ public class BootstrappingUtils {
         Element nuanceNode = (childName != null) ? rootElement.getChild(childName) : rootElement;
         if (nuanceNode != null) {
             nuance = new ColorNuance();
-            nuance.setAlpha(getContentAsNuance(nuanceNode, Externalization.ALPHA_NODE, BootstrappingUtils.OPTIONAL, 0d, context, NORMALIZED));
+            nuance.setAlpha(getContentAsNuance(nuanceNode, Externalization.ALPHA_NODE, BootstrappingUtils.OPTIONAL, -1d, context, NORMALIZED));
             nuance.setHue(getContentAsNuance(nuanceNode, Externalization.HUE_NODE, BootstrappingUtils.OPTIONAL, 0d, context, NORMALIZED));
             nuance.setSaturation(getContentAsNuance(nuanceNode, Externalization.SATURATION_NODE, BootstrappingUtils.OPTIONAL, 0d, context, NORMALIZED));
             nuance.setBrightness(getContentAsNuance(nuanceNode, Externalization.BRIGHTNESS_NODE, BootstrappingUtils.OPTIONAL, 0d, context, NORMALIZED));

TULIP/src/lu/list/itis/dkd/tui/utility/ColorNuance.java

@@ -126,7 +126,7 @@ public class ColorNuance {
     // ---------------------------------------------------------------------------
 
     public boolean affectsAlpha() {
-        return this.brightness != 0;
+        return this.alpha >= 0;
     }
 
     // ---------------------------------------------------------------------------
@@ -264,14 +264,16 @@ public class ColorNuance {
         }
 
         if (affectsAlpha()) {
-            double normalizedAlpha = newAlpha;
-            normalizedAlpha *= 1 + this.alpha;
-            newAlpha = MathUtils.constrain((int) (normalizedAlpha), 0x00, 0xff);
+            // double normalizedAlpha = newAlpha;
+            // normalizedAlpha *= this.alpha;
+            newAlpha = (int) (255 * this.alpha);
+            newAlpha = MathUtils.constrain(newAlpha, 0x00, 0xff);
         }
 
         int rgb = Color.HSBtoRGB(hsb[HUE], hsb[SATURATION], hsb[BRIGHTNESS]);
-        rgb |= ((newAlpha << 24) & 0xFF000000);
-        return new Color(rgb);
+        rgb &= 0x00FFFFFF;
+        rgb |= (newAlpha << 24);
+        return new Color(rgb, true);
     }
 
     // ---------------------------------------------------------------------------

TULIP/src/lu/list/itis/dkd/tui/utility/selection/SelectionGroup.java

@@ -66,6 +66,21 @@ public class SelectionGroup implements SelectionListener {
         this.listeners = new ArrayList<>();
     }
 
+    // ---------------------------------------------------------------------------
+    /**
+     * @param name
+     * @param isExclusive
+     * 
+     */
+    // ---------------------------------------------------------------------------
+
+    public SelectionGroup(String name, boolean isExclusive) {
+        this.name = name;
+        this.isExclusive = isExclusive;
+        this.members = new ArrayList<>();
+        this.listeners = new ArrayList<>();
+    }
+
     // ---------------------------------------------------------------------------
     /**
      * @param rootElement
@@ -206,6 +221,11 @@ public class SelectionGroup implements SelectionListener {
     }
 
     // ---------------------------------------------------------------------------
+    /**
+     * @param selectable
+     * @return
+     */
+    // ---------------------------------------------------------------------------
 
     public boolean add(Selectable selectable) {
         if (!this.members.contains(selectable)) {