[piccolo2d-dev] [piccolo2d] r1044 committed - fix for area shape fidelity problems, see Issue 152 comment 6

[piccolo2d]

Revision: 1044
Author: heuermh
Date: Thu Aug 12 14:39:46 2010
Log: fix for area shape fidelity problems, see Issue 152 comment 6
http://code.google.com/p/piccolo2d/source/detail?r=1044
Modified:
  
/piccolo2d.java/branches/ppath-refactoring/core/src/main/java/org/piccolo2d/nodes/PShape.java

=======================================
---  
/piccolo2d.java/branches/ppath-refactoring/core/src/main/java/org/piccolo2d/nodes/PShape.java	 
Tue Aug  3 15:03:26 2010
+++  
/piccolo2d.java/branches/ppath-refactoring/core/src/main/java/org/piccolo2d/nodes/PShape.java	 
Thu Aug 12 14:39:46 2010
@@ -53,6 +53,9 @@
     /** Stroke paint for this shape node, defaults to {...@link  
#DEFAULT_STROKE_PAINT}. */
     private Paint strokePaint = DEFAULT_STROKE_PAINT;

+    /** True if bounds are currently being updated to match the shape. */
+    private transient boolean updatingBoundsFromShape = false;
+
     /** Default paint for this shape node, <code>Color.WHITE</code>. */
     public static final Paint DEFAULT_PAINT = Color.WHITE;

@@ -136,8 +139,10 @@
      * Update the bounds of this shape node from its shape.
      */
     protected final void updateBoundsFromShape() {
+        updatingBoundsFromShape = true;
         final Rectangle2D b = getBoundsWithStroke();
         setBounds(b.getX(), b.getY(), b.getWidth(), b.getHeight());
+        updatingBoundsFromShape = false;
     }

     /**
@@ -156,37 +161,39 @@

     /** {...@inheritdoc} */
     protected final void internalUpdateBounds(final double x, final double  
y, final double width, final double height) {
+        if (updatingBoundsFromShape) {
+            return;
+        }
+
         final Rectangle2D bounds = getShape().getBounds2D();
         final Rectangle2D strokeBounds = getBoundsWithStroke();
         final double strokeOutset = Math.max(strokeBounds.getWidth() -  
bounds.getWidth(),
                                              strokeBounds.getHeight() -  
bounds.getHeight());

-        double adjustedX = x + strokeOutset / 2;
-        double adjustedY = y + strokeOutset / 2;
+        double adjustedX = x + strokeOutset / 2.0d;
+        double adjustedY = y + strokeOutset / 2.0d;
         double adjustedWidth = width - strokeOutset;
         double adjustedHeight = height - strokeOutset;

         final double scaleX;
         if (adjustedWidth == 0 || bounds.getWidth() == 0) {
-            scaleX = 1;
+            scaleX = 1.0d;
         }
         else {
             scaleX = adjustedWidth / bounds.getWidth();
         }
         final double scaleY;
         if (adjustedHeight == 0 || bounds.getHeight() == 0) {
-            scaleY = 1;
+            scaleY = 1.0d;
         }
         else {
             scaleY = adjustedHeight / bounds.getHeight();
         }

-        // todo: cache instance as static?
         final AffineTransform transform = new AffineTransform();
         transform.translate(adjustedX, adjustedY);
         transform.scale(scaleX, scaleY);
         transform.translate(-bounds.getX(), -bounds.getY());
-
         transform(transform);
     }

--
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