Fixed issue 190 : Need to modify all of Java 3D off-screen example programs to request a single-buffered graphics Configuration

3 files changed, 372 insertions, 285 deletions

diff --git a/src/PrintCanvas3D/OffScreenCanvas3D.java b/src/PrintCanvas3D/OffScreenCanvas3D.java
index b089e5c..1b00768 100644
--- a/src/PrintCanvas3D/OffScreenCanvas3D.java
+++ b/src/PrintCanvas3D/OffScreenCanvas3D.java
@@ -68,6 +68,9 @@ class OffScreenCanvas3D extends Canvas3D {
 	waitForOffScreenRendering();
 	bImage = getOffScreenBuffer().getImage();
 
+        // To release the reference of buffer inside Java 3D.
+        setOffScreenBuffer(null);
+
 	return bImage;
     }
 
diff --git a/src/PrintCanvas3D/PrintCanvas3D.form b/src/PrintCanvas3D/PrintCanvas3D.form
new file mode 100644
index 0000000..5150ee2
--- /dev/null
+++ b/src/PrintCanvas3D/PrintCanvas3D.form
@@ -0,0 +1,74 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+
+<Form version="1.0" type="org.netbeans.modules.form.forminfo.JFrameFormInfo">
+  <NonVisualComponents>
+    <Menu class="javax.swing.JMenuBar" name="jMenuBar1">
+      <SubComponents>
+        <Menu class="javax.swing.JMenu" name="fileMenu">
+          <Properties>
+            <Property name="text" type="java.lang.String" value="File"/>
+          </Properties>
+          <SubComponents>
+            <MenuItem class="javax.swing.JMenuItem" name="snapShotMenuItem">
+              <Properties>
+                <Property name="text" type="java.lang.String" value="Snapshot"/>
+              </Properties>
+              <Events>
+                <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="snapShotMenuItemActionPerformed"/>
+              </Events>
+            </MenuItem>
+            <MenuItem class="javax.swing.JMenuItem" name="printMenuItem">
+              <Properties>
+                <Property name="text" type="java.lang.String" value="Print"/>
+              </Properties>
+              <Events>
+                <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="printMenuItemActionPerformed"/>
+              </Events>
+            </MenuItem>
+            <MenuItem class="javax.swing.JMenuItem" name="exitMenuItem">
+              <Properties>
+                <Property name="text" type="java.lang.String" value="Exit"/>
+              </Properties>
+              <Events>
+                <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="exitMenuItemActionPerformed"/>
+              </Events>
+            </MenuItem>
+          </SubComponents>
+        </Menu>
+      </SubComponents>
+    </Menu>
+  </NonVisualComponents>
+  <Properties>
+    <Property name="defaultCloseOperation" type="int" value="3"/>
+    <Property name="title" type="java.lang.String" value="Window Title"/>
+  </Properties>
+  <SyntheticProperties>
+    <SyntheticProperty name="menuBar" type="java.lang.String" value="jMenuBar1"/>
+    <SyntheticProperty name="formSizePolicy" type="int" value="1"/>
+  </SyntheticProperties>
+  <AuxValues>
+    <AuxValue name="FormSettings_generateMnemonicsCode" type="java.lang.Boolean" value="false"/>
+    <AuxValue name="FormSettings_listenerGenerationStyle" type="java.lang.Integer" value="0"/>
+    <AuxValue name="FormSettings_variablesLocal" type="java.lang.Boolean" value="false"/>
+    <AuxValue name="FormSettings_variablesModifier" type="java.lang.Integer" value="2"/>
+    <AuxValue name="designerSize" type="java.awt.Dimension" value="-84,-19,0,5,115,114,0,18,106,97,118,97,46,97,119,116,46,68,105,109,101,110,115,105,111,110,65,-114,-39,-41,-84,95,68,20,2,0,2,73,0,6,104,101,105,103,104,116,73,0,5,119,105,100,116,104,120,112,0,0,1,44,0,0,1,-112"/>
+  </AuxValues>
+
+  <Layout class="org.netbeans.modules.form.compat2.layouts.DesignBorderLayout"/>
+  <SubComponents>
+    <Container class="javax.swing.JPanel" name="drawingPanel">
+      <Properties>
+        <Property name="preferredSize" type="java.awt.Dimension" editor="org.netbeans.beaninfo.editors.DimensionEditor">
+          <Dimension value="[500, 500]"/>
+        </Property>
+      </Properties>
+      <Constraints>
+        <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignBorderLayout" value="org.netbeans.modules.form.compat2.layouts.DesignBorderLayout$BorderConstraintsDescription">
+          <BorderConstraints direction="Center"/>
+        </Constraint>
+      </Constraints>
+
+      <Layout class="org.netbeans.modules.form.compat2.layouts.DesignBorderLayout"/>
+    </Container>
+  </SubComponents>
+</Form>
diff --git a/src/PrintCanvas3D/PrintCanvas3D.java b/src/PrintCanvas3D/PrintCanvas3D.java
index 87ff679..32a66ba 100644
--- a/src/PrintCanvas3D/PrintCanvas3D.java
+++ b/src/PrintCanvas3D/PrintCanvas3D.java
@@ -42,321 +42,331 @@
  * $State$
  */
 
+import com.sun.j3d.utils.universe.*;
+import javax.media.j3d.*;
+import javax.vecmath.*;
+import java.awt.*;
+import java.awt.GraphicsConfiguration;
+import javax.swing.JPopupMenu;
+
 import com.sun.j3d.loaders.objectfile.ObjectFile;
 import com.sun.j3d.loaders.ParsingErrorException;
 import com.sun.j3d.loaders.IncorrectFormatException;
 import com.sun.j3d.loaders.Scene;
-import javax.swing.*;
-import java.awt.BorderLayout;
-import java.awt.Container;
-import java.awt.Dimension;
-import java.awt.GraphicsConfiguration;
-import java.awt.Point;
 import java.awt.image.BufferedImage;
 import java.awt.event.*;
-import com.sun.j3d.utils.universe.*;
-import javax.media.j3d.*;
-import javax.vecmath.*;
 import java.io.*;
 import com.sun.j3d.utils.behaviors.mouse.*;
 
-public class PrintCanvas3D extends JFrame implements ActionListener {
+public class PrintCanvas3D extends javax.swing.JFrame {
 
-    private static final boolean spin = false;
     private static final boolean noTriangulate = false;
     private static final boolean noStripify = false;
     private static final double creaseAngle = 60.0;
-
-    private JMenuItem snapshotItem;
-    private JMenuItem freeBufferItem;
-    private JMenuItem printItem;
-    private JMenuItem quitItem;
-
-    private SimpleUniverse u;
-    private Canvas3D canvas3D;
+    private Canvas3D onScreenCanvas3D;
     private OffScreenCanvas3D offScreenCanvas3D;
-
+    private String filename = null;
     private static final int OFF_SCREEN_SCALE = 3;
 
-    private class AppPanel extends JPanel {
-
-	private String filename = null;
-
-	public BranchGroup createSceneGraph(String args[]) {
-	    // Create the root of the branch graph
-	    BranchGroup objRoot = new BranchGroup();
-
-	    // Create a Transformgroup to scale all objects so they
-	    // appear in the scene.
-	    TransformGroup objScale = new TransformGroup();
-	    Transform3D t3d = new Transform3D();
-	    t3d.setScale(0.7);
-	    objScale.setTransform(t3d);
-	    objRoot.addChild(objScale);
-
-	    // Create the transform group node and initialize it to the
-	    // identity.  Enable the TRANSFORM_WRITE capability so that
-	    // our behavior code can modify it at runtime.  Add it to the
-	    // root of the subgraph.
-	    TransformGroup objTrans = new TransformGroup();
-	    objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
-	    objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
-	    objScale.addChild(objTrans);
-
-	    int flags = ObjectFile.RESIZE;
-	    if (!noTriangulate) flags |= ObjectFile.TRIANGULATE;
-	    if (!noStripify) flags |= ObjectFile.STRIPIFY;
-	    ObjectFile f =
-		new ObjectFile(flags, 
-			       (float)(creaseAngle * Math.PI / 180.0));
-	    Scene s = null;
-	    try {
-		s = f.load(filename);
-	    }
-	    catch (FileNotFoundException e) {
-		System.err.println(e);
-		System.exit(1);
-	    }
-	    catch (ParsingErrorException e) {
-		System.err.println(e);
-		System.exit(1);
-	    }
-	    catch (IncorrectFormatException e) {
-		System.err.println(e);
-		System.exit(1);
-	    }
-	  
-	    objTrans.addChild(s.getSceneGroup());
-
-	    BoundingSphere bounds =
-		new BoundingSphere(new Point3d(0.0,0.0,0.0), 100.0);
-
-	    if (spin) {
-		Transform3D yAxis = new Transform3D();
-		Alpha rotationAlpha = new Alpha(-1, Alpha.INCREASING_ENABLE,
-						0, 0,
-						4000, 0, 0,
-						0, 0, 0);
-
-		RotationInterpolator rotator =
-		    new RotationInterpolator(rotationAlpha, objTrans, yAxis,
-					     0.0f, (float) Math.PI*2.0f);
-		rotator.setSchedulingBounds(bounds);
-		objTrans.addChild(rotator);
-	    } else {
-		// Create the rotate behavior node
-		MouseRotate behavior = new MouseRotate();
-		behavior.setTransformGroup(objTrans);
-		objTrans.addChild(behavior);
-		behavior.setSchedulingBounds(bounds);
-
-		// Create the zoom behavior node
-		MouseZoom behavior2 = new MouseZoom();
-		behavior2.setTransformGroup(objTrans);
-		objTrans.addChild(behavior2);
-		behavior2.setSchedulingBounds(bounds);
-
-		// Create the translate behavior node
-		MouseTranslate behavior3 = new MouseTranslate();
-		behavior3.setTransformGroup(objTrans);
-		objTrans.addChild(behavior3);
-		behavior3.setSchedulingBounds(bounds);
-	    }
-
-	    // Set up the background
-	    Color3f bgColor = new Color3f(0.05f, 0.05f, 0.5f);
-	    Background bgNode = new Background(bgColor);
-	    bgNode.setApplicationBounds(bounds);
-	    objRoot.addChild(bgNode);
-
-	    // Set up the ambient light
-	    Color3f ambientColor = new Color3f(0.1f, 0.1f, 0.1f);
-	    AmbientLight ambientLightNode = new AmbientLight(ambientColor);
-	    ambientLightNode.setInfluencingBounds(bounds);
-	    objRoot.addChild(ambientLightNode);
-
-	    // Set up the directional lights
-	    Color3f light1Color = new Color3f(1.0f, 1.0f, 0.9f);
-	    Vector3f light1Direction  = new Vector3f(4.0f, -7.0f, -12.0f);
-	    Color3f light2Color = new Color3f(0.3f, 0.3f, 0.4f);
-	    Vector3f light2Direction  = new Vector3f(-6.0f, -2.0f, -1.0f);
-
-	    DirectionalLight light1
-		= new DirectionalLight(light1Color, light1Direction);
-	    light1.setInfluencingBounds(bounds);
-	    objRoot.addChild(light1);
-
-	    DirectionalLight light2
-		= new DirectionalLight(light2Color, light2Direction);
-	    light2.setInfluencingBounds(bounds);
-	    objRoot.addChild(light2);
-
-	    return objRoot;
+    private SimpleUniverse univ = null;
+
+    public BranchGroup createSceneGraph(String args[]) {
+	// Create the root of the branch graph
+	BranchGroup objRoot = new BranchGroup();
+	
+	// Create a Transformgroup to scale all objects so they
+	// appear in the scene.
+	TransformGroup objScale = new TransformGroup();
+	Transform3D t3d = new Transform3D();
+	t3d.setScale(0.7);
+	objScale.setTransform(t3d);
+	objRoot.addChild(objScale);
+
+	// Create the transform group node and initialize it to the
+	// identity.  Enable the TRANSFORM_WRITE capability so that
+	// our behavior code can modify it at runtime.  Add it to the
+	// root of the subgraph.
+	TransformGroup objTrans = new TransformGroup();
+	objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
+	objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
+	objScale.addChild(objTrans);
+
+	int flags = ObjectFile.RESIZE;
+	if (!noTriangulate) flags |= ObjectFile.TRIANGULATE;
+	if (!noStripify) flags |= ObjectFile.STRIPIFY;
+	ObjectFile f =
+	    new ObjectFile(flags, 
+			   (float)(creaseAngle * Math.PI / 180.0));
+	Scene scene = null;
+	try {
+	    scene = f.load(filename);
 	}
-
-	private void usage() {
-	    System.out.println("Usage: java PrintCanvas3D <.obj file>");
-	    System.exit(0);
-	} // End of usage
-
-
-	// Create the Canvas3D (both on-screen and off-screen)
-	private void createCanvas3D(String[] args) {
-	    if (args.length == 0) {
-		usage();
-	    } else {
-		for (int i = 0 ; i < args.length ; i++) {
-		    if (args[i].startsWith("-")) {
-			System.err.println("Argument '" + args[i] + "' ignored.");
-		    }
-		    else {
-			filename = args[i];
-		    }
-		}
-	    }
-
-	    if (filename == null) {
-		usage();
-	    }
-
-	    // Create Canvas3D
-	    GraphicsConfiguration config =
-		SimpleUniverse.getPreferredConfiguration();
-
-	    canvas3D = new Canvas3D(config);
-	    canvas3D.setSize(600, 450);
-
-	    // Create a simple scene and attach it to the virtual universe
-	    BranchGroup scene = createSceneGraph(args);
-	    u = new SimpleUniverse(canvas3D);
-	    // This will move the ViewPlatform back a bit so the
-	    // objects in the scene can be viewed.
-	    u.getViewingPlatform().setNominalViewingTransform();
-	    u.addBranchGraph(scene);
-
-	    // Create the off-screen Canvas3D object
-	    offScreenCanvas3D = new OffScreenCanvas3D(config, true);
-	    // Set the off-screen size based on a scale factor times the
-	    // on-screen size
-	    Screen3D sOn = canvas3D.getScreen3D();
-	    Screen3D sOff = offScreenCanvas3D.getScreen3D();
-	    Dimension dim = sOn.getSize();
-	    dim.width *= OFF_SCREEN_SCALE;
-	    dim.height *= OFF_SCREEN_SCALE;
-	    sOff.setSize(dim);
-	    sOff.setPhysicalScreenWidth(sOn.getPhysicalScreenWidth() *
-					OFF_SCREEN_SCALE);
-	    sOff.setPhysicalScreenHeight(sOn.getPhysicalScreenHeight() *
-					 OFF_SCREEN_SCALE);
-
-	    // attach the offscreen canvas to the view
-	    u.getViewer().getView().addCanvas3D(offScreenCanvas3D);
+	catch (FileNotFoundException e) {
+	    System.err.println(e);
+	    System.exit(1);
 	}
-
-	private AppPanel(String args[]) {
-	    setLayout(new BorderLayout());
-
-	    // Create Canvas3D and scene graph
-	    createCanvas3D(args);
-	    add("Center", canvas3D);
+	catch (ParsingErrorException e) {
+	    System.err.println(e);
+	    System.exit(1);
 	}
-    }
-
-    private void doExit() {
-	View view = u.getViewer().getView();
-
-	// Free offscreen buffer
-	try {
-	    offScreenCanvas3D.setOffScreenBuffer(null);
+	catch (IncorrectFormatException e) {
+	    System.err.println(e);
+	    System.exit(1);
 	}
-	catch (NullPointerException npe) {
-	    //System.err.println(npe + " while freeing off-screen buffer");
-	}
-
-	// clear universe resources
-	u.removeAllLocales();
-
-	// remove all canvas3Ds from View
-	view.removeCanvas3D(offScreenCanvas3D);
-	view.removeCanvas3D(canvas3D);
+	  
+	objTrans.addChild(scene.getSceneGroup());
+
+	BoundingSphere bounds =
+	    new BoundingSphere(new Point3d(0.0,0.0,0.0), 100.0);
+
+        // Create the rotate behavior node
+        MouseRotate behavior = new MouseRotate();
+        behavior.setTransformGroup(objTrans);
+        objTrans.addChild(behavior);
+        behavior.setSchedulingBounds(bounds);
+        
+        // Create the zoom behavior node
+        MouseZoom behavior2 = new MouseZoom();
+        behavior2.setTransformGroup(objTrans);
+        objTrans.addChild(behavior2);
+        behavior2.setSchedulingBounds(bounds);
+        
+        // Create the translate behavior node
+        MouseTranslate behavior3 = new MouseTranslate();
+        behavior3.setTransformGroup(objTrans);
+        objTrans.addChild(behavior3);
+        behavior3.setSchedulingBounds(bounds);
+	
+
+	// Set up the background
+	Color3f bgColor = new Color3f(0.05f, 0.05f, 0.5f);
+	Background bgNode = new Background(bgColor);
+	bgNode.setApplicationBounds(bounds);
+	objRoot.addChild(bgNode);
+
+	// Set up the ambient light
+	Color3f ambientColor = new Color3f(0.1f, 0.1f, 0.1f);
+	AmbientLight ambientLightNode = new AmbientLight(ambientColor);
+	ambientLightNode.setInfluencingBounds(bounds);
+	objRoot.addChild(ambientLightNode);
+
+	// Set up the directional lights
+	Color3f light1Color = new Color3f(1.0f, 1.0f, 0.9f);
+	Vector3f light1Direction  = new Vector3f(4.0f, -7.0f, -12.0f);
+	Color3f light2Color = new Color3f(0.3f, 0.3f, 0.4f);
+	Vector3f light2Direction  = new Vector3f(-6.0f, -2.0f, -1.0f);
+
+	DirectionalLight light1
+	    = new DirectionalLight(light1Color, light1Direction);
+	light1.setInfluencingBounds(bounds);
+	objRoot.addChild(light1);
+
+	DirectionalLight light2
+	    = new DirectionalLight(light2Color, light2Direction);
+	light2.setInfluencingBounds(bounds);
+	objRoot.addChild(light2);
+
+	return objRoot;
+    }
 
+    private void usage() {
+	System.out.println("Usage: java PrintCanvas3D <.obj file>");
 	System.exit(0);
+    } // End of usage
+
+    private OffScreenCanvas3D createOffScreenCanvas(Canvas3D onScreenCanvas3D) {
+	// Create the off-screen Canvas3D object
+	// request an offscreen Canvas3D with a single buffer configuration
+	GraphicsConfigTemplate3D template = new GraphicsConfigTemplate3D();
+	template.setDoubleBuffer(GraphicsConfigTemplate3D.UNNECESSARY);
+	GraphicsConfiguration gc = 
+                GraphicsEnvironment.getLocalGraphicsEnvironment().
+                getDefaultScreenDevice().getBestConfiguration(template);
+
+	offScreenCanvas3D = new OffScreenCanvas3D(gc, true);
+	// Set the off-screen size based on a scale factor times the
+	// on-screen size
+	Screen3D sOn = onScreenCanvas3D.getScreen3D();
+	Screen3D sOff = offScreenCanvas3D.getScreen3D();
+	Dimension dim = sOn.getSize();
+	dim.width *= OFF_SCREEN_SCALE;
+	dim.height *= OFF_SCREEN_SCALE;
+	sOff.setSize(dim);
+	sOff.setPhysicalScreenWidth(sOn.getPhysicalScreenWidth() *
+				    OFF_SCREEN_SCALE);
+	sOff.setPhysicalScreenHeight(sOn.getPhysicalScreenHeight() *
+				     OFF_SCREEN_SCALE);
+
+	// attach the offscreen canvas to the view
+	univ.getViewer().getView().addCanvas3D(offScreenCanvas3D);        
+
+        return offScreenCanvas3D;
+        
     }
 
-    public void actionPerformed (ActionEvent event) {
-	Object target = event.getSource();
-
-	if ((target == snapshotItem) ||
-	    (target == printItem)) {
-	    Point loc = canvas3D.getLocationOnScreen();
-	    offScreenCanvas3D.setOffScreenLocation(loc);
-	    Dimension dim = canvas3D.getSize();
-	    dim.width *= OFF_SCREEN_SCALE;
-	    dim.height *= OFF_SCREEN_SCALE;
-	    BufferedImage bImage =
-		offScreenCanvas3D.doRender(dim.width, dim.height);
-
-	    if (target == snapshotItem) {
-		new ImageDisplayer(bImage);
-	    }
-	    else { // (target == printItem)
-		new ImagePrinter(bImage).print();
-	    }
-	}
-	else if (target == freeBufferItem) {
-	    try {
-		offScreenCanvas3D.setOffScreenBuffer(null);
-	    }
-	    catch (NullPointerException npe) {
-		//System.err.println(npe + " while freeing off-screen buffer");
-	    }
-	}
-	else if (target == quitItem) {
-	    doExit();
-	}
-    }
+    private Canvas3D createUniverse() {
+	GraphicsConfiguration config =
+	    SimpleUniverse.getPreferredConfiguration();
 
-    private JMenuBar createMenuBar() {
-	JMenuBar menuBar = new JMenuBar();
-	JMenu fileMenu = new JMenu("File");
-	snapshotItem = new JMenuItem("Snapshot");
-	snapshotItem.addActionListener(this);
-	freeBufferItem = new JMenuItem("Free OffScreen Buffer");
-	freeBufferItem.addActionListener(this);
-	printItem = new JMenuItem("Print...");
-	printItem.addActionListener(this);
-	quitItem = new JMenuItem("Quit");
-	quitItem.addActionListener(this);
-	fileMenu.add(snapshotItem);
-	fileMenu.add(freeBufferItem);
-	fileMenu.add(printItem);
-	fileMenu.add(new JSeparator());
-	fileMenu.add(quitItem);
-	menuBar.add(fileMenu);
-	return menuBar;
-    }
+	Canvas3D c = new Canvas3D(config);
 
-    private PrintCanvas3D(String args[]) {
-	this.setTitle("Canvas3D Print Test");
+	univ = new SimpleUniverse(c);
 
-	// Create and initialize menu bar
-	JPopupMenu.setDefaultLightWeightPopupEnabled(false);
-	this.setJMenuBar(createMenuBar());
+	// This will move the ViewPlatform back a bit so the
+	// objects in the scene can be viewed.
+        univ.getViewingPlatform().setNominalViewingTransform();
 
-	// Handle the close event
-	this.addWindowListener(new WindowAdapter() {
-	    public void windowClosing(WindowEvent winEvent) {
-		doExit();
-	    }
-	});
+	// Ensure at least 5 msec per frame (i.e., < 200Hz)
+	univ.getViewer().getView().setMinimumFrameCycleTime(5);
+
+	return c;
+    }
 
-	// Add main panel to top-level frame and make it visible
-	this.getContentPane().add(new AppPanel(args));
-	this.pack();
-	this.setVisible(true);
+    /**
+     * Creates new form PrintCanvas3D
+     */
+    public PrintCanvas3D(String args[]) {
+        
+        if (args.length == 0) {
+            usage();
+        } else {
+            for (int i = 0 ; i < args.length ; i++) {
+                if (args[i].startsWith("-")) {
+                    System.err.println("Argument '" + args[i] + "' ignored.");
+                } else {
+                    filename = args[i];
+                }
+            }
+        }
+        
+        if (filename == null) {
+            usage();
+        }
+        
+        // Initialize the GUI components
+        JPopupMenu.setDefaultLightWeightPopupEnabled(false);
+        initComponents();        
+
+        // Create Canvas3D and SimpleUniverse; add canvas to drawing panel
+        onScreenCanvas3D = createUniverse();
+        drawingPanel.add(onScreenCanvas3D, java.awt.BorderLayout.CENTER);
+
+        // Create the content branch and add it to the universe
+        BranchGroup scene = createSceneGraph(args);
+        
+	// Create the off-screen Canvas3D object
+        createOffScreenCanvas(onScreenCanvas3D);
+        
+        univ.addBranchGraph(scene);
     }
 
-    public static void main(String[] args) {
-	new PrintCanvas3D(args);
+    // ----------------------------------------------------------------
+    
+    /** This method is called from within the constructor to
+     * initialize the form.
+     * WARNING: Do NOT modify this code. The content of this method is
+     * always regenerated by the Form Editor.
+     */
+    // <editor-fold defaultstate="collapsed" desc=" Generated Code ">//GEN-BEGIN:initComponents
+    private void initComponents() {
+        drawingPanel = new javax.swing.JPanel();
+        jMenuBar1 = new javax.swing.JMenuBar();
+        fileMenu = new javax.swing.JMenu();
+        snapShotMenuItem = new javax.swing.JMenuItem();
+        printMenuItem = new javax.swing.JMenuItem();
+        exitMenuItem = new javax.swing.JMenuItem();
+
+        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
+        setTitle("Window Title");
+        drawingPanel.setLayout(new java.awt.BorderLayout());
+
+        drawingPanel.setPreferredSize(new java.awt.Dimension(500, 500));
+        getContentPane().add(drawingPanel, java.awt.BorderLayout.CENTER);
+
+        fileMenu.setText("File");
+        snapShotMenuItem.setText("Snapshot");
+        snapShotMenuItem.addActionListener(new java.awt.event.ActionListener() {
+            public void actionPerformed(java.awt.event.ActionEvent evt) {
+                snapShotMenuItemActionPerformed(evt);
+            }
+        });
+
+        fileMenu.add(snapShotMenuItem);
+
+        printMenuItem.setText("Print");
+        printMenuItem.addActionListener(new java.awt.event.ActionListener() {
+            public void actionPerformed(java.awt.event.ActionEvent evt) {
+                printMenuItemActionPerformed(evt);
+            }
+        });
+
+        fileMenu.add(printMenuItem);
+
+        exitMenuItem.setText("Exit");
+        exitMenuItem.addActionListener(new java.awt.event.ActionListener() {
+            public void actionPerformed(java.awt.event.ActionEvent evt) {
+                exitMenuItemActionPerformed(evt);
+            }
+        });
+
+        fileMenu.add(exitMenuItem);
+
+        jMenuBar1.add(fileMenu);
+
+        setJMenuBar(jMenuBar1);
+
+        pack();
+    }// </editor-fold>//GEN-END:initComponents
+
+    private void printMenuItemActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_printMenuItemActionPerformed
+	Point loc = onScreenCanvas3D.getLocationOnScreen();
+	offScreenCanvas3D.setOffScreenLocation(loc);
+	Dimension dim = onScreenCanvas3D.getSize();
+	dim.width *= OFF_SCREEN_SCALE;
+	dim.height *= OFF_SCREEN_SCALE;
+	BufferedImage bImage =
+	    offScreenCanvas3D.doRender(dim.width, dim.height);
+
+        new ImagePrinter(bImage).print();
+
+    }//GEN-LAST:event_printMenuItemActionPerformed
+
+    private void snapShotMenuItemActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_snapShotMenuItemActionPerformed
+	Point loc = onScreenCanvas3D.getLocationOnScreen();
+	offScreenCanvas3D.setOffScreenLocation(loc);
+	Dimension dim = onScreenCanvas3D.getSize();
+	dim.width *= OFF_SCREEN_SCALE;
+	dim.height *= OFF_SCREEN_SCALE;
+	BufferedImage bImage =
+	    offScreenCanvas3D.doRender(dim.width, dim.height);
+
+	new ImageDisplayer(bImage);
+
+
+    }//GEN-LAST:event_snapShotMenuItemActionPerformed
+
+    private void exitMenuItemActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_exitMenuItemActionPerformed
+        System.exit(0);
+    }//GEN-LAST:event_exitMenuItemActionPerformed
+    
+    /**
+     * @param args the command line arguments
+     */
+    public static void main(final String args[]) {
+        java.awt.EventQueue.invokeLater(new Runnable() {
+            public void run() {
+                    new PrintCanvas3D(args).setVisible(true);;
+            }
+        });
     }
+    
+    // Variables declaration - do not modify//GEN-BEGIN:variables
+    private javax.swing.JPanel drawingPanel;
+    private javax.swing.JMenuItem exitMenuItem;
+    private javax.swing.JMenu fileMenu;
+    private javax.swing.JMenuBar jMenuBar1;
+    private javax.swing.JMenuItem printMenuItem;
+    private javax.swing.JMenuItem snapShotMenuItem;
+    // End of variables declaration//GEN-END:variables
+    
 }