1 files changed, 167 insertions, 0 deletions
diff --git a/demos/MiscDemos/gearsOffScreenDrawImage.java b/demos/MiscDemos/gearsOffScreenDrawImage.java
new file mode 100755
index 0000000..9cdc8c2
--- /dev/null
+++ b/demos/MiscDemos/gearsOffScreenDrawImage.java
@@ -0,0 +1,167 @@
+/**
+ * @(#) gearsOffScreeneen2Tga.java
+ * @(#) author: Brian Paul (converted to Java by Ron Cemer and Sven Goethel)
+ *
+ * This version is equal to Brian Paul's version 1.2 1999/10/21
+ */
+
+import java.applet.*;
+import java.awt.*;
+import java.awt.event.*;
+import java.lang.*;
+import java.util.*;
+import java.io.*;
+import gl4java.*;
+import gl4java.drawable.*;
+import gl4java.awt.*;
+import gl4java.utils.textures.*;
+
+public class gearsOffScreenDrawImage extends Applet
+	implements ComponentListener
+{
+	GLOffScreenDrawable glcanvas=null;
+	Dimension size;
+
+	public void init()
+	{
+		if(glcanvas==null)
+		{
+			size = new Dimension(400,400);
+			glcanvas = new GLOffScreenDrawable(size);
+
+			gearRenderer gear = new gearRenderer(true);
+			glcanvas.addGLEventListener(gear);
+
+			glcanvas.initDrawable();
+		}
+		addComponentListener(this);
+	}
+
+	public void destroy()
+	{
+	    removeComponentListener(this);
+	    glcanvas.cvsDispose();
+	    glcanvas=null;
+	    super.destroy();
+	}
+
+	public Dimension getPreferredSize() {
+		return getMinimumSize();
+	}
+
+	public Dimension getMinimumSize() {
+		return size;
+	}
+
+	public void setSize(Dimension size) {
+		this.size=size;
+		super.setSize(size);
+		if(glcanvas!=null)
+			glcanvas.setSize(size);
+	}
+	
+
+	public void paint(Graphics g)
+	{
+		size=getSize();
+		if(glcanvas!=null && glcanvas.cvsIsInit())
+		{
+			glcanvas.repaint();
+		        glcanvas.drawImage(g, 0, 0, size.width, size.height, this);
+		}
+	}
+
+
+	    public void componentResized(ComponentEvent e)
+	    {
+		if(glcanvas!=null && glcanvas.cvsIsInit())
+		{
+			setSize(getSize());
+		}
+	    }
+
+	    public void componentMoved(ComponentEvent e)
+	    {
+	    }
+
+	    public void componentShown(ComponentEvent e)
+	    {
+	    }
+
+	    public void componentHidden(ComponentEvent e)
+	    { }
+
+	public static void main( String args[] ) 
+	{
+		int i = 0;
+		String gljLib = null;
+		String glLib = null;
+		String gluLib = null;
+
+	        GLContext.gljNativeDebug = false;
+	        GLContext.gljClassDebug = false;
+	        GLContext.gljThreadDebug = false;
+
+		while(args.length>i)
+		{
+			if(args[i].equals("-gljLib"))
+			{
+				i++;
+				if(args.length>i)
+					gljLib=args[i];
+			} else if(args[i].equals("-glLib"))
+			{
+				i++;
+				if(args.length>i)
+					glLib=args[i];
+			} else if(args[i].equals("-gluLib"))
+			{
+				i++;
+				if(args.length>i)
+					gluLib=args[i];
+			} else {
+			  System.out.println("illegal arg "+i+": "+args[i]);
+			}
+			i++;
+		}
+
+		GLContext.doLoadNativeLibraries(gljLib, glLib, gluLib);
+
+		/**
+		 * yes .. we need an AWT Frame,
+		 * to let java get in touch with the underlying 
+		 * windowing system for initialisation !
+		 */
+		Frame mainFrame = new Frame("gears offscreen");
+
+		mainFrame.addWindowListener( new WindowAdapter()
+				{
+					public void windowClosed(WindowEvent e)
+					{
+						System.exit(0);
+					}
+					public void windowClosing(WindowEvent e)
+					{
+						windowClosed(e);
+					}
+				}
+			);
+
+		gearsOffScreenDrawImage applet = new gearsOffScreenDrawImage ();
+		mainFrame.add(applet);
+		applet.setSize(400,500);
+		applet.init();
+
+		Dimension ps = applet.getPreferredSize();
+		mainFrame.setBounds(-100,-100,99,99);
+		mainFrame.setVisible(true);
+		mainFrame.setVisible(false);
+		mainFrame.setVisible(true);
+		Insets is = mainFrame.getInsets();
+		mainFrame.setBounds(0,0,
+			    ps.width+is.left+is.right, 
+		            ps.height+is.top+is.bottom);
+		mainFrame.setVisible(true);
+		applet.repaint();
+	}
+}