Modified scaling strategy

CPS/src/lu/list/itis/dkd/tui/widget/corona/ShapeGraph.java

@@ -45,7 +45,7 @@ public class ShapeGraph extends ValueCorona {
     protected ColorPair fillColour;
     protected ColorPair strokeColour;
     protected int strokeWidth;
-    // protected Shape graphShape;
+    protected Shape scaledShape;
 
     protected Timeline blinkingTimeline;
     protected Timeline balisticTimeline;
@@ -71,6 +71,7 @@ public class ShapeGraph extends ValueCorona {
         this.strokeColour = builder.strokeColour;
         this.strokeWidth = builder.strokeWidth;
         this.shape = builder.graphShape;
+        this.scaledShape = builder.shape;
 
         borderStroke = (builder.strokeWidth > 0) ? new BasicStroke(builder.strokeWidth) : null;
 
@@ -95,6 +96,7 @@ public class ShapeGraph extends ValueCorona {
         this.strokeColour = original.strokeColour;
         this.strokeWidth = original.strokeWidth;
         this.shape = original.shape;
+        this.scaledShape = original.shape;
 
         borderStroke = (original.strokeWidth > 0) ? new BasicStroke(original.strokeWidth) : null;
 
@@ -135,7 +137,9 @@ public class ShapeGraph extends ValueCorona {
         shownValue = value;
 
         if (variable != null) {
-            double size = lowerBound + (upperBound - lowerBound) * (shownValue - this.variable.getMinValue()) / (this.variable.getMaxValue() - this.variable.getMinValue());
+            // double size = lowerBound + (upperBound - lowerBound) * (shownValue - this.variable.getMinValue())
+            // / (this.variable.getMaxValue() - this.variable.getMinValue());
+            double size = lowerBound + ((upperBound - lowerBound) * this.variable.getNormalizedValue());
 
             if (size == upperBound)
                 this.startBlinking();
@@ -143,6 +147,9 @@ public class ShapeGraph extends ValueCorona {
                 this.stopBlinking();
 
             scale = size / lowerBound;
+
+            AffineTransform scaler = AffineTransform.getScaleInstance(scale, scale);
+            scaledShape = scaler.createTransformedShape(this.shape);
         }
     }
 
@@ -150,9 +157,7 @@ public class ShapeGraph extends ValueCorona {
 
     @Override
     public Shape getShape() {
-        AffineTransform transform = this.getTransform(null);
-        transform.scale(scale, scale);
-        return transform.createTransformedShape(super.getShape());
+        return this.scaledShape;
     }
 
     // ---------------------------------------------------------------------------
@@ -164,24 +169,7 @@ public class ShapeGraph extends ValueCorona {
 
         Graphics2D localCanvas = (Graphics2D) canvas.create();
 
-
-        // centre.toScreenCoordinates();
-        // if (initialTranslation != null)
-        // initialTranslation.toScreenCoordinates();
-        // Point drawAt = centre.add(initialTranslation);
-        //
-        // if (this.rotateWithHandle) {
-        // angle = (float) (drawAt.getAngle() % TWO_PI);
-        // }
-        //
-        // AffineTransform translation = new AffineTransform();
-        // translation.translate(drawAt.x, drawAt.y);
-        // translation.rotate(angle);
-        // translation.scale(scale, scale);
-        // localCanvas.setTransform(translation);
-
         AffineTransform transform = this.getTransform(null);
-        transform.scale(scale, scale);
         localCanvas.setTransform(transform);
 
         if (this.opacity < 1.0f)
@@ -190,14 +178,14 @@ public class ShapeGraph extends ValueCorona {
         if (shape != null) {
             if (fillColour != null) {
                 localCanvas.setPaint(fillColour.getColor());
-                localCanvas.fill(shape);
+                localCanvas.fill(scaledShape);
             }
 
             if (strokeColour != null) {
                 localCanvas.setPaint(strokeColour.getColor());
                 if (borderStroke != null) {
                     localCanvas.setStroke(borderStroke);
-                    localCanvas.draw(shape);
+                    localCanvas.draw(scaledShape);
                 }
             }
         }