Percentage values such as transparency Alpha, image Scale, etc, can have decimal values and not just integers

diylc/diylc-core/src/main/java/org/diylc/common/Percentage.java

@@ -22,22 +22,31 @@
 package org.diylc.common;
 
 import java.io.Serializable;
+import java.math.BigDecimal;
 
 public class Percentage implements Serializable, Cloneable {
 
   private static final long serialVersionUID = 1L;
 
-  private int value;
+  private BigDecimal value;
 
-  public Percentage(int value) {
+  public Percentage(BigDecimal value) {
     this.value = value;
   }
 
-  public int getValue() {
+  public Percentage(double value) {
+    this.value = BigDecimal.valueOf(value);
+  }
+  
+  public Percentage(int value) {
+    this.value = BigDecimal.valueOf((long) value);
+  }
+
+  public BigDecimal getValue() {
     return value;
   }
 
-  public void setValue(int value) {
+  public void setValue(BigDecimal value) {
     this.value = value;
   }
 
@@ -45,7 +54,7 @@ public class Percentage implements Serializable, Cloneable {
   public int hashCode() {
     final int prime = 31;
     int result = 1;
-    result = prime * result + value;
+    result = prime * result + ((value == null) ? 0 : value.stripTrailingZeros().hashCode());
     return result;
   }
 
@@ -58,14 +67,19 @@ public class Percentage implements Serializable, Cloneable {
     if (getClass() != obj.getClass())
       return false;
     Percentage other = (Percentage) obj;
-    if (value != other.value)
+    if (value == null) {
+      if (other.value != null)
+        return false;
+    } else if (value.compareTo(other.value) != 0)
       return false;
     return true;
   }
 
   @Override
   public String toString() {
-    return value + "%";
+    if (value == null) return "null%";
+    BigDecimal stripped = value.stripTrailingZeros();
+    return String.format("%s%%", stripped.toPlainString());
   }
 
   @Override

diylc/diylc-core/src/main/java/org/diylc/components/AbstractTransparentComponent.java

@@ -59,19 +59,19 @@ public abstract class AbstractTransparentComponent<T> extends AbstractComponent<
 
   public Composite applyAlpha(Graphics2D g2d, ComponentState componentState) {
     Composite oldComposite = g2d.getComposite();
-    int alpha = (OUTLINE_MODE_WHILE_DRAGGING && componentState == ComponentState.DRAGGING) ? 0 :
-        getAlpha().getValue();
+    double alpha = (OUTLINE_MODE_WHILE_DRAGGING && componentState == ComponentState.DRAGGING) ? 0 :
+        getAlpha().getValue().doubleValue();
     if (alpha < MAX_ALPHA) {
-      g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, alpha / 100f));
+      g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, (float)(alpha / 100d)));
     }
     return oldComposite;
   }
 
   public Composite applyAlpha(Graphics2D g2d) {
     Composite oldComposite = g2d.getComposite();
-    int alpha = getAlpha().getValue();
+    double alpha = getAlpha().getValue().doubleValue();
     if (alpha < MAX_ALPHA) {
-      g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, alpha / 100f));
+      g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, (float)(alpha / 100d)));
     }
     return oldComposite;
   }

diylc/diylc-core/src/main/java/org/diylc/presenter/DrawingManager.java

@@ -594,7 +594,7 @@ public class DrawingManager {
     try {
       g2dWrapper.transform(mirrorTx);
       if (Boolean.TRUE.equals(board.getUndersideTransparency())) {
-        g2dWrapper.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, MIRROR_ALPHA.getValue() / 100f));
+        g2dWrapper.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, (float)(MIRROR_ALPHA.getValue().doubleValue() / 100d)));
       }
       component.draw(g2dWrapper, state, outlineMode, project, g2dWrapper);
     } catch (Exception e) {

diylc/diylc-core/src/main/resources/update.xml

@@ -369,6 +369,10 @@
 			<releaseDate>2026-08-22 00:00:00.000 CET</releaseDate>
 			<name></name>
 			<changes>
+				<org.diylc.appframework.update.Change>
+					<changeType>IMPROVEMENT</changeType>
+					<description>Percentage values such as transparency Alpha, image Scale, etc, can have decimal values and not just integers</description>
+				</org.diylc.appframework.update.Change>
 				<org.diylc.appframework.update.Change>
 					<changeType>IMPROVEMENT</changeType>
 					<description>Made announcement bubbles and dialogs that contain links clickable</description>