samer@0: /**
samer@0: 		ViewGroup.java
samer@0: 
samer@0: 		A View branch group containing a ViewPlatform
samer@0: 		and associated Views, Canvas3Ds and Windows to
samer@0: 		hold the canvases.  Can be added dynamically
samer@0: 		to a live universe.
samer@0: 
samer@0: 		Parameters:
samer@0: 			initial placement
samer@0: 			autostart canvas?
samer@0: 			autostart view?
samer@0: 			keyboard navigator?
samer@0: 			various view policies
samer@0: 
samer@0: 		Requirements:
samer@0: 			must be placable (hence TransformGroup and ViewPlatform)
samer@0: 			must be Node so addable to universe
samer@0: 			renderable:
samer@0: 				view.renderOnce()
samer@0: 				view.startView()
samer@0: 				view.stopView()
samer@0: 				canvas.startRenderer()
samer@0: 				canvas.stopRenderer()
samer@0: 				... ?
samer@0: 			disposable: cleans up properly
samer@0: 			must have accessible View and Canvas objects
samer@0: 			must manage multiple canvases for stereo
samer@0: 
samer@0:  */
samer@0: package samer.j3d;
samer@0: 
samer@0: import samer.core.*;
samer@0: import samer.tools.*;
samer@0: import java.awt.*;
samer@0: import java.awt.event.*;
samer@0: import javax.media.j3d.*;
samer@0: import javax.vecmath.*;
samer@0: 
samer@0: 
samer@0: public class ViewBase extends javax.media.j3d.View implements Agent, WindowListener, Task
samer@0: {
samer@0: 	public ViewBase()
samer@0: 	{
samer@0: 		stopView(); // seems  be started during constructor
samer@0: 
samer@0: 		PhysicalBody body=new PhysicalBody();
samer@0: 		PhysicalEnvironment env=new PhysicalEnvironment();
samer@0: 		double d=Shell.getDouble("eyeSeparation",0.01); // units??
samer@0: 		body.setLeftEyePosition(new Point3d(-d,0,0));
samer@0: 		body.setRightEyePosition(new Point3d(d,0,0));
samer@0: 		body.setNominalEyeHeightFromGround(0);
samer@0: 
samer@0: 		// canvas.getStereoAvailable()
samer@0: 		// canvas.setStereoEnable
samer@0: 		// queryProperties
samer@0: 
samer@0: 		setPhysicalBody(body);
samer@0: 		setPhysicalEnvironment(env);
samer@0: 
samer@0: 		setWindowEyepointPolicy(View.RELATIVE_TO_WINDOW);
samer@0: 		//setWindowResizePolicy(View.VIRTUAL_WORLD);
samer@0: 		//setLocalEyeLightingEnable(true);
samer@0: 		//setWindowMovementPolicy(View.VIRTUAL_WORLD);
samer@0: 		setFrontClipDistance(Shell.getDouble("front",0.5));
samer@0: 		setBackClipDistance(Shell.getDouble("back",20));
samer@0: 		setDepthBufferFreezeTransparent(true);
samer@0: 		// Shell.registerAgent(this);
samer@0: 	}
samer@0: 
samer@0: 	 
samer@0: 	public Canvas3D createCanvas() {
samer@0: 		GraphicsConfigTemplate tmp=new GraphicsConfigTemplate3D();
samer@0: 		Shell.trace("Graphics configuration template: "+tmp);
samer@0: 		
samer@0: 		Canvas3D canvas=new Canvas3D(
samer@0: 			GraphicsEnvironment.getLocalGraphicsEnvironment().
samer@0: 				getDefaultScreenDevice().getBestConfiguration(tmp));
samer@0: 		addCanvas3D(canvas);
samer@0: 		return canvas;
samer@0: 	}
samer@0: 
samer@0: 	public Shell.Window createWindow(Canvas3D canvas, String name) {
samer@0: 		Shell.Window w=Shell.getWindow(name);
samer@0: 		w.container().setLayout(new java.awt.BorderLayout());
samer@0: 		w.container().add(canvas);
samer@0: 		w.addWindowListener(this);
samer@0: 		w.expose();
samer@0: 		// expose commands for agent
samer@0: 		return w;
samer@0: 	}
samer@0: 	
samer@0: 	public void dispose() {
samer@0: 		stopView();
samer@0: 		// Shell.deregisterAgent(this);
samer@0: 	}
samer@0: 
samer@0: 	public void getCommands(Agent.Registry r) {
samer@0: 		r.add("start").add("stop").add("render");
samer@0: 	}
samer@0: 	public void execute(String cmd, Environment env) throws Exception {
samer@0: 		if (cmd.equals("render")) renderOnce();
samer@0: 		else if (cmd.equals("start")) { Shell.trace("view staring"); startView(); }
samer@0: 		else if (cmd.equals("stop")) { Shell.trace("view stopping"); stopView(); }
samer@0: 	}
samer@0: 
samer@0: 	public void starting() {}
samer@0: 	public void stopping() {}
samer@0: 	public void run() { if (!isViewRunning()) renderOnce(); }
samer@0: 
samer@0: 	public void windowOpened(WindowEvent e) {}
samer@0: 	public void windowClosed(WindowEvent e) { }
samer@0: 	public void windowClosing(WindowEvent e) { dispose(); }
samer@0: 	public void windowActivated(WindowEvent e) {	}
samer@0: 	public void windowDeactivated(WindowEvent e) {}
samer@0: 	public void windowIconified(WindowEvent e) {}
samer@0: 	public void windowDeiconified(WindowEvent e) {}
samer@0: }