AWTTilePainter.setupGraphics2DAndClipBounds(): Use 'Shape getClip()'; Use double precicion clip bounds 'all the way'; Explicitly scale image and clip w/ current scaled transform.

- Use 'Shape getClip()'
  Don't assume Rectangle2D, but use Shape's getBounds2D()

- Use double precicion clip bounds 'all the way'
  Remove rounding error on clip bounds w/ start value, which was _not_ using doubles.

- Explicitly scale image and clip w/ current scaled transform.
  Instead of abusing Graphics2D's clip shape to scale image size and clip-area,
  explicitly use transform both bounding boxes into transformed space,
  scale space and transform out (inversion).
  A possible NoninvertibleTransformException will be thrown while Graphics2D has not been modified.

1 files changed, 15 insertions, 9 deletions

diff --git a/src/newt/classes/com/jogamp/newt/awt/NewtCanvasAWT.java b/src/newt/classes/com/jogamp/newt/awt/NewtCanvasAWT.java
index 64e9bb0f6..374a80325 100644
--- a/src/newt/classes/com/jogamp/newt/awt/NewtCanvasAWT.java
+++ b/src/newt/classes/com/jogamp/newt/awt/NewtCanvasAWT.java
@@ -37,6 +37,7 @@ import java.awt.Graphics;
 import java.awt.Graphics2D;
 import java.awt.GraphicsConfiguration;
 import java.awt.KeyboardFocusManager;
+import java.awt.geom.NoninvertibleTransformException;
 import java.beans.Beans;
 import java.beans.PropertyChangeEvent;
 import java.beans.PropertyChangeListener;
@@ -577,17 +578,22 @@ public class NewtCanvasAWT extends java.awt.Canvas implements WindowClosingProto
         }
 
         final Graphics2D g2d = (Graphics2D)graphics;
-        printAWTTiles.setupGraphics2DAndClipBounds(g2d, getWidth(), getHeight());
         try {
-            final TileRenderer tileRenderer = printAWTTiles.renderer;
-            if( DEBUG ) {
-                System.err.println("AWT print.0: "+tileRenderer);
+            printAWTTiles.setupGraphics2DAndClipBounds(g2d, getWidth(), getHeight());
+            try {
+                final TileRenderer tileRenderer = printAWTTiles.renderer;
+                if( DEBUG ) {
+                    System.err.println("AWT print.0: "+tileRenderer);
+                }
+                do {
+                    tileRenderer.display();
+                } while ( !tileRenderer.eot() );
+            } finally {
+                printAWTTiles.resetGraphics2D();
             }
-            do {
-                tileRenderer.display();
-            } while ( !tileRenderer.eot() );
-        } finally {
-            printAWTTiles.resetGraphics2D();
+        } catch (NoninvertibleTransformException nte) {
+            System.err.println("Catched: Inversion failed of: "+g2d.getTransform());
+            nte.printStackTrace();
         }
         if( DEBUG ) {
             System.err.println("AWT print.X: "+printAWTTiles);