[piccolo2d-dev] [piccolo2d] r627 commited - Refactored PCacheCamera to cleanup and made it work in Headless mode.

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Revision: 627
Author: allain.lalonde
Date: Thu Jul 30 12:23:57 2009
Log: Refactored PCacheCamera to cleanup and made it work in Headless mode.
http://code.google.com/p/piccolo2d/source/detail?r=627

Modified:
   
/piccolo2d.java/trunk/extras/src/main/java/edu/umd/cs/piccolox/nodes/PCacheCamera.java

=======================================
---  
/piccolo2d.java/trunk/extras/src/main/java/edu/umd/cs/piccolox/nodes/PCacheCamera.java
   
Tue Jul 28 12:46:54 2009
+++  
/piccolo2d.java/trunk/extras/src/main/java/edu/umd/cs/piccolox/nodes/PCacheCamera.java
   
Thu Jul 30 12:23:57 2009
@@ -56,7 +56,7 @@
       *
       */
      private static final long serialVersionUID = 1L;
-    private BufferedImage paintBuffer;
+    private transient BufferedImage paintBuffer;
      private boolean imageAnimate;
      private PBounds imageAnimateBounds;

@@ -65,15 +65,28 @@
       */
      protected BufferedImage getPaintBuffer() {
          final PBounds fRef = getFullBoundsReference();
-        // TODO eclipse formatting made this ugly
-        if (paintBuffer == null || paintBuffer.getWidth() < fRef.getWidth()
-                || paintBuffer.getHeight() < fRef.getHeight()) {
-            paintBuffer =  
GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice()
-                    .getDefaultConfiguration().createCompatibleImage((int)  
Math.ceil(fRef.getWidth()),
-                            (int) Math.ceil(fRef.getHeight()));
+        if (paintBuffer == null || isBufferSmallerThanBounds(fRef)) {
+            paintBuffer = buildPaintBuffer(fRef);
          }
          return paintBuffer;
      }
+
+    private boolean isBufferSmallerThanBounds(final PBounds bounds) {
+        return paintBuffer.getWidth() < bounds.getWidth() ||  
paintBuffer.getHeight() < bounds.getHeight();
+    }
+
+    private BufferedImage buildPaintBuffer(final PBounds fRef) {
+        final int newBufferWidth = (int) Math.ceil(fRef.getWidth());
+        final int newBufferHeight = (int) Math.ceil(fRef.getHeight());
+
+        if (GraphicsEnvironment.isHeadless()) {
+            return new BufferedImage(newBufferWidth, newBufferHeight,  
BufferedImage.TYPE_4BYTE_ABGR);
+        }
+        else {
+            return  
GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice().getDefaultConfiguration()
+                    .createCompatibleImage(newBufferWidth,  
newBufferHeight);
+        }
+    }

      /**
       * Caches the information necessary to animate from the current view  
bounds

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