1 files changed, 409 insertions, 402 deletions
diff --git a/gl4java/awt/GLImageCanvas.java b/gl4java/awt/GLImageCanvas.java
index 113d589..0a87785 100755
--- a/gl4java/awt/GLImageCanvas.java
+++ b/gl4java/awt/GLImageCanvas.java
@@ -1,402 +1,409 @@
-/**
- * @(#) GLImageCanvas.java
- */
-
-
-package gl4java.awt;
-
-import gl4java.*;
-import gl4java.utils.*;
-import gl4java.utils.textures.*;
-
-import java.awt.*;
-import java.net.*;
-
-/**
- * This Class provides a simple universal
- * Image/Texture OpenGL Canvas !
- *
- * A special demo/application for this class can be found
- * in "demos/MiscDemos/GLImageViewerCanvas.java" !
- *
- * @see TextureLoader
- * @author      Sven Goethel
- * 
- */
-public class GLImageCanvas extends GLCanvas
-{
-   int texName[] = {0};
-   TextureLoader txtLoader = null;
-   boolean newText = false;
-   boolean keepAspect = true;
-   boolean zoomImg = true;
-   
-   TextureGrabber textGrab4Snapshot = null;
-   String         textGrab4SnapshotFName = null;
-   URL            textGrab4SnapshotURL  = null;
-   String         textGrab4SnapshotURI  = null;
-
-    public GLImageCanvas(int w, int h)
-    {
-	super(w, h);
-    }
-
-    public void setKeepAspectRatio(boolean v)
-    { keepAspect=v; }
-
-    public boolean getKeepAspectRatio()
-    { return keepAspect; }
-
-    public void setZoomAble(boolean v)
-    { zoomImg = v; }
-
-    public boolean getZoomAble()
-    { return zoomImg; }
-
-    public TextureLoader getTextureLoader()
-    { return txtLoader; }
-
-    public void setOriginalSize()
-    {
-	    if(txtLoader!=null && txtLoader.isOk())
-	    {
-	    	internalSetSize( txtLoader.getImageWidth(),
-		                 txtLoader.getImageHeight() );
-	    }
-    }
-
-    /**
-     * Creates a snapshot (save texture/image) of the current
-     * GL-Context !
-     *
-     * The snapshot itself is created delayed,
-     * so no return value is avaiable.
-     * Because this is a non critical path, I hope its enough !
-     *
-     * @param tg The TextureGrabber
-     * @param fname The filename
-     * @see TextureGrabber
-     */
-    public void snapshot(TextureGrabber tg, String fname) 
-    {
-    	textGrab4Snapshot=tg;
-	textGrab4SnapshotFName=fname;
-	repaint();
-    }
-
-    /**
-     * Creates a snapshot (save texture/image) of the current
-     * GL-Context !
-     *
-     * The snapshot itself is created delayed,
-     * so no return value is avaiable.
-     * Because this is a non critical path, I hope its enough !
-     *
-     * @param tg The TextureGrabber
-     * @param base The base URL
-     * @param uri  The additional uri for the base URL
-     * @see TextureGrabber
-     */
-    public void snapshot(TextureGrabber tg, URL base, String uri)
-    {
-    	textGrab4Snapshot=tg;
-	textGrab4SnapshotURL  = base;
-	textGrab4SnapshotURI  = uri;
-	repaint();
-    }
-
-    public Dimension getPreferredSize() {
-        return getMinimumSize();
-    }
-
-    public Dimension getMinimumSize() {
-        return getSize();
-    }
-
-    protected void internalSetSize(int w, int h)
-    {
-	setSize( w, h );
-	invalidate();
-
-    	Window holder = Tool.getWindow(this);
-
-	if(holder!=null)
-	{
-		holder.invalidate();
-		holder.pack();
-		holder.repaint();
-	}
-    }
-
-    public void preInit()
-    {
-	// createOwnWindow = true;
-    }
-
-    public void init()
-    {
-	 gl.glEnable(GL_TEXTURE_2D);
-	    
-	 gl.glGenTextures(1,texName);
-	 gl.glBindTexture(GL_TEXTURE_2D,texName[0]);
-	    
-	 gl.glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_S,GL_CLAMP);
-	 gl.glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_T,GL_CLAMP);
-	 gl.glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
-	 gl.glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
-         gl.glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
-	
-	 gl.glShadeModel (GL_SMOOTH);
-	
-	 gl.glClearColor(0.2f, 0.2f, 0.2f, 1.0f);
-
-	 reshape(getSize().width, getSize().height);
-    }
-
-    /**
-     * Loads an Image of the appropiate type,
-     * and renders and resizes the complete window !
-     *
-     * @param fname The filename
-     * @param type The type of file, e.g. TextureLoader is used !
-     *             The following types are currently allowed:
-     *             "png" for PngTextureLoader,
-     *             "ppm" for PPMAsciiTextureLoader,
-     *             "tga" for PPMAsciiTextureLoader,
-     *             "any" for AWTTextureLoader !
-     */
-    public boolean loadTexture(String fname, String type)
-    {
-    	return loadTexture(fname, null, null, type);
-    }
-
-    /**
-     * Loads an Image of the appropiate type,
-     * and renders and resizes the complete window !
-     *
-     * @param base The base URL
-     * @param uri  The additional uri for the base URL
-     * @param type The type of file, e.g. TextureLoader is used !
-     *             The following types are currently allowed:
-     *             "png" for PngTextureLoader,
-     *             "ppm" for PPMAsciiTextureLoader,
-     *             "tga" for PPMAsciiTextureLoader,
-     *             "any" for AWTTextureLoader !
-     */
-    public boolean loadTexture(URL base, String uri, String type)
-    {
-    	return loadTexture(null, base, uri, type);
-    }
-
-    protected boolean loadTexture(String fname,
-    				  URL base, String uri, String type)
-    {
-	 boolean ok = true;
-
-	 if( glj.gljMakeCurrent() == false ) 
-	 {
-	      System.out.println("problem in use() method");
-	      return false;
-	 }
-
-	 // texture laden
-	 if(type.equals("png"))
-		 txtLoader = new PngTextureLoader(gl, glu);
-	 else if(type.equals("ppm"))
-		 txtLoader = new PPMAsciiTextureLoader(gl, glu);
-	 else if(type.equals("tga"))
-		 txtLoader = new TGATextureLoader(gl, glu);
-	 else if(type.equals("any"))
-		 txtLoader = new AWTTextureLoader(this, gl, glu);
-	 else {
-		System.out.println("Imagetype: "+type+" is currently not supported !");
-		ok = false;
-	 }
-
-	 if(ok)
-	 {
-		try {
-		   if(fname!=null)
-			txtLoader.readTexture(fname);
-		   else
-			txtLoader.readTexture(base, uri);
-		} catch (Exception ex) {
-			ex.printStackTrace();
-		}
-	 }
-
-	 if(ok && txtLoader.isOk())
-	 {
-	    gl.glEnable(GL_TEXTURE_2D);
-	    
-	    txtLoader.texImage2DNonScaled(true);
-
-	    gl.glDisable(GL_TEXTURE_2D);
-	    System.out.println("texture succesfully loaded !");
-	    System.out.println("texture: "+txtLoader);
-	 }
-	 glj.gljCheckGL();
-	 glj.gljFree();
-	 if(ok) {
-    		internalSetSize( txtLoader.getImageWidth(),
-			         txtLoader.getImageHeight() );
-	 }
-	 return ok;
-    }
-
-    public void display()
-    {
-      int i;
-
-      /* Standard GL4Java Init */
-      if( glj.gljMakeCurrent() == false ) 
-      {
-	System.out.println("problem in use() method");
-	return;
-      }
-
-      SetCamera();
-
-      // just render it
-      gl.glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
-      DrawObj(false);
-
-      if(textGrab4Snapshot!=null)
-      {
-	  textGrab4Snapshot.grabPixels(GL_BACK, 
-			               0, 0, cvsGetWidth(), cvsGetHeight());
-	  if(textGrab4SnapshotFName!=null)
-		  textGrab4Snapshot.write2File(textGrab4SnapshotFName);
-	  else
-		  textGrab4Snapshot.write2File(textGrab4SnapshotURL,
-		  		               textGrab4SnapshotURI);
-    	  textGrab4Snapshot     =null;
-	  textGrab4SnapshotFName=null;
-	  textGrab4SnapshotURL  =null;
-	  textGrab4SnapshotURI  =null;
-      }
-      
-      /* For your animation dutys ;-) */
-      glj.gljSwap();
-      glj.gljCheckGL();
-      glj.gljFree();
-    }
-
-    /**
-     * to prevent a deadlock in recursive
-     * reshape .. internalSetSize .. pack .. resize -> reshape !
-     */
-    private int reshape_resize_sema = 1;
-
-    public void reshape(int w, int h)
-    {
-        if(reshape_resize_sema>0 &&
-	   keepAspect && txtLoader!=null && txtLoader.isOk())
-	{
-            reshape_resize_sema--;
-
-	    int rw=w; int rh=h;
-	    if(zoomImg)
-	    {
-		double    iaspect = (double)txtLoader.getImageWidth()/
-		                    (double)txtLoader.getImageHeight();
-		if(rw<rh)
-		{
-			h = (int) ((rw / iaspect)+0.5);
-		} else {
-			w = (int) ((rh * iaspect)+0.5);
-		}
-	    } else {
-		w = txtLoader.getImageWidth();
-	        h = txtLoader.getImageHeight();
-	    }
-	    if(rw!=w || rh!=h)
-	    {
-    		internalSetSize( w, h );
-		return ; /* the true resize is coming up ... */
-	    }
-	}
-	reshape_resize_sema=1;
-	gl.glViewport (0, 0, w, h);
-	SetCamera();
-    }
-
-
-    protected void DrawObj(boolean blend)
-    {
-	gl.glPushMatrix();
-	    if(blend)
-	    {
-		 gl.glEnable(GL_BLEND);
-		 gl.glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
-	    }
-
-	    gl.glColor4f(1f,1f,1f,1f);
-
-	    if(txtLoader!=null && txtLoader.isOk())
-	    {
-		    gl.glEnable(GL_TEXTURE_2D);
-		    gl.glBegin(GL_QUADS);
-
-			gl.glNormal3f(0f,0f,1f);
-			gl.glTexCoord2f(0f,0f);
-			gl.glVertex2f(0f, 0f);
-
-			gl.glNormal3f(0f,0f,1f);
-			gl.glTexCoord2f(0f,1f);
-			gl.glVertex2f(0f, 1f);
-			
-			gl.glNormal3f(0f,0f,1f);
-			gl.glTexCoord2f(1f,1f);
-			gl.glVertex2f(1f, 1f);
-
-			gl.glNormal3f(0f,0f,1f);
-			gl.glTexCoord2f(1f,0f);
-			gl.glVertex2f(1f, 0f);
-			
-		    gl.glEnd();
-		    gl.glDisable(GL_TEXTURE_2D);
-	    }
-
-	    if(blend)
-		 gl.glDisable(GL_BLEND);
-
-	gl.glPopMatrix();
-    }
-    
-    protected void SetCamera()
-    {
-      float imgwidth   = 1f;
-      float imgheight  = 1f;
-      float txtdx=0f;
-      float txtdy=0f;
-
-      if(txtLoader!=null && txtLoader.isOk())
-      {
-	      Dimension idim = new Dimension(txtLoader.getImageWidth(),
-	      		                     txtLoader.getImageHeight());
-	      Dimension tdim = new Dimension(txtLoader.getTextureWidth(),
-	      		                     txtLoader.getTextureHeight());
-
-	      imgwidth   = (float)idim.width/(float)tdim.width;
-	      imgheight  = (float)idim.height/(float)tdim.height;
-
-	      /*
-              System.out.println("image : "+idim);
-              System.out.println("text  : "+tdim);
-              System.out.println("image/text : "+imgwidth+"/"+imgheight);
-	      */
-      }
-
-      gl.glMatrixMode (GL_PROJECTION);
-      gl.glLoadIdentity ();
-      glu.gluOrtho2D(0, imgwidth,
-      		     0, imgheight);
-
-      gl.glMatrixMode (GL_MODELVIEW);
-      gl.glLoadIdentity ();
-    }
-
-}
-
+/**
+ * @(#) GLImageCanvas.java
+ */
+
+
+package gl4java.awt;
+
+import gl4java.*;
+import gl4java.utils.*;
+import gl4java.utils.textures.*;
+
+import java.awt.*;
+import java.net.*;
+
+/**
+ * This Class provides a simple universal
+ * Image/Texture OpenGL Canvas !
+ *
+ * A special demo/application for this class can be found
+ * in "demos/MiscDemos/GLImageViewerCanvas.java" !
+ *
+ * @see TextureLoader
+ * @author      Sven Goethel
+ * 
+ */
+public class GLImageCanvas extends GLCanvas
+{
+   int texName[] = {0};
+   TextureLoader txtLoader = null;
+   boolean newText = false;
+   boolean keepAspect = true;
+   boolean zoomImg = true;
+   
+   TextureGrabber textGrab4Snapshot = null;
+   String         textGrab4SnapshotFName = null;
+   URL            textGrab4SnapshotURL  = null;
+   String         textGrab4SnapshotURI  = null;
+
+    public GLImageCanvas(int w, int h)
+    {
+	super(w, h);
+    }
+
+    public GLImageCanvas( GraphicsConfiguration config, 
+                          GLCapabilities capabilities,
+    			  int w, int h)
+    {
+	super(config, capabilities, w, h);
+    }
+
+    public void setKeepAspectRatio(boolean v)
+    { keepAspect=v; }
+
+    public boolean getKeepAspectRatio()
+    { return keepAspect; }
+
+    public void setZoomAble(boolean v)
+    { zoomImg = v; }
+
+    public boolean getZoomAble()
+    { return zoomImg; }
+
+    public TextureLoader getTextureLoader()
+    { return txtLoader; }
+
+    public void setOriginalSize()
+    {
+	    if(txtLoader!=null && txtLoader.isOk())
+	    {
+	    	internalSetSize( txtLoader.getImageWidth(),
+		                 txtLoader.getImageHeight() );
+	    }
+    }
+
+    /**
+     * Creates a snapshot (save texture/image) of the current
+     * GL-Context !
+     *
+     * The snapshot itself is created delayed,
+     * so no return value is avaiable.
+     * Because this is a non critical path, I hope its enough !
+     *
+     * @param tg The TextureGrabber
+     * @param fname The filename
+     * @see TextureGrabber
+     */
+    public void snapshot(TextureGrabber tg, String fname) 
+    {
+    	textGrab4Snapshot=tg;
+	textGrab4SnapshotFName=fname;
+	repaint();
+    }
+
+    /**
+     * Creates a snapshot (save texture/image) of the current
+     * GL-Context !
+     *
+     * The snapshot itself is created delayed,
+     * so no return value is avaiable.
+     * Because this is a non critical path, I hope its enough !
+     *
+     * @param tg The TextureGrabber
+     * @param base The base URL
+     * @param uri  The additional uri for the base URL
+     * @see TextureGrabber
+     */
+    public void snapshot(TextureGrabber tg, URL base, String uri)
+    {
+    	textGrab4Snapshot=tg;
+	textGrab4SnapshotURL  = base;
+	textGrab4SnapshotURI  = uri;
+	repaint();
+    }
+
+    public Dimension getPreferredSize() {
+        return getMinimumSize();
+    }
+
+    public Dimension getMinimumSize() {
+        return getSize();
+    }
+
+    protected void internalSetSize(int w, int h)
+    {
+	setSize( w, h );
+	invalidate();
+
+    	Window holder = Tool.getWindow(this);
+
+	if(holder!=null)
+	{
+		holder.invalidate();
+		holder.pack();
+		holder.repaint();
+	}
+    }
+
+    public void preInit()
+    {
+	// createOwnWindow = true;
+    }
+
+    public void init()
+    {
+	 gl.glEnable(GL_TEXTURE_2D);
+	    
+	 gl.glGenTextures(1,texName);
+	 gl.glBindTexture(GL_TEXTURE_2D,texName[0]);
+	    
+	 gl.glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_S,GL_CLAMP);
+	 gl.glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_T,GL_CLAMP);
+	 gl.glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
+	 gl.glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
+         gl.glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
+	
+	 gl.glShadeModel (GL_SMOOTH);
+	
+	 gl.glClearColor(0.2f, 0.2f, 0.2f, 1.0f);
+
+	 reshape(getSize().width, getSize().height);
+    }
+
+    /**
+     * Loads an Image of the appropiate type,
+     * and renders and resizes the complete window !
+     *
+     * @param fname The filename
+     * @param type The type of file, e.g. TextureLoader is used !
+     *             The following types are currently allowed:
+     *             "png" for PngTextureLoader,
+     *             "ppm" for PPMAsciiTextureLoader,
+     *             "tga" for PPMAsciiTextureLoader,
+     *             "any" for AWTTextureLoader !
+     */
+    public boolean loadTexture(String fname, String type)
+    {
+    	return loadTexture(fname, null, null, type);
+    }
+
+    /**
+     * Loads an Image of the appropiate type,
+     * and renders and resizes the complete window !
+     *
+     * @param base The base URL
+     * @param uri  The additional uri for the base URL
+     * @param type The type of file, e.g. TextureLoader is used !
+     *             The following types are currently allowed:
+     *             "png" for PngTextureLoader,
+     *             "ppm" for PPMAsciiTextureLoader,
+     *             "tga" for PPMAsciiTextureLoader,
+     *             "any" for AWTTextureLoader !
+     */
+    public boolean loadTexture(URL base, String uri, String type)
+    {
+    	return loadTexture(null, base, uri, type);
+    }
+
+    protected boolean loadTexture(String fname,
+    				  URL base, String uri, String type)
+    {
+	 boolean ok = true;
+
+	 if( glj.gljMakeCurrent() == false ) 
+	 {
+	      System.out.println("problem in use() method");
+	      return false;
+	 }
+
+	 // texture laden
+	 if(type.equals("png"))
+		 txtLoader = new PngTextureLoader(gl, glu);
+	 else if(type.equals("ppm"))
+		 txtLoader = new PPMAsciiTextureLoader(gl, glu);
+	 else if(type.equals("tga"))
+		 txtLoader = new TGATextureLoader(gl, glu);
+	 else if(type.equals("any"))
+		 txtLoader = new AWTTextureLoader(this, gl, glu);
+	 else {
+		System.out.println("Imagetype: "+type+" is currently not supported !");
+		ok = false;
+	 }
+
+	 if(ok)
+	 {
+		try {
+		   if(fname!=null)
+			txtLoader.readTexture(fname);
+		   else
+			txtLoader.readTexture(base, uri);
+		} catch (Exception ex) {
+			ex.printStackTrace();
+		}
+	 }
+
+	 if(ok && txtLoader.isOk())
+	 {
+	    gl.glEnable(GL_TEXTURE_2D);
+	    
+	    txtLoader.texImage2DNonScaled(true);
+
+	    gl.glDisable(GL_TEXTURE_2D);
+	    System.out.println("texture succesfully loaded !");
+	    System.out.println("texture: "+txtLoader);
+	 }
+	 glj.gljCheckGL();
+	 glj.gljFree();
+	 if(ok) {
+    		internalSetSize( txtLoader.getImageWidth(),
+			         txtLoader.getImageHeight() );
+	 }
+	 return ok;
+    }
+
+    public void display()
+    {
+      int i;
+
+      /* Standard GL4Java Init */
+      if( glj.gljMakeCurrent() == false ) 
+      {
+	System.out.println("problem in use() method");
+	return;
+      }
+
+      SetCamera();
+
+      // just render it
+      gl.glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+      DrawObj(false);
+
+      if(textGrab4Snapshot!=null)
+      {
+	  textGrab4Snapshot.grabPixels(GL_BACK, 
+			               0, 0, cvsGetWidth(), cvsGetHeight());
+	  if(textGrab4SnapshotFName!=null)
+		  textGrab4Snapshot.write2File(textGrab4SnapshotFName);
+	  else
+		  textGrab4Snapshot.write2File(textGrab4SnapshotURL,
+		  		               textGrab4SnapshotURI);
+    	  textGrab4Snapshot     =null;
+	  textGrab4SnapshotFName=null;
+	  textGrab4SnapshotURL  =null;
+	  textGrab4SnapshotURI  =null;
+      }
+      
+      /* For your animation dutys ;-) */
+      glj.gljSwap();
+      glj.gljCheckGL();
+      glj.gljFree();
+    }
+
+    /**
+     * to prevent a deadlock in recursive
+     * reshape .. internalSetSize .. pack .. resize -> reshape !
+     */
+    private int reshape_resize_sema = 1;
+
+    public void reshape(int w, int h)
+    {
+        if(reshape_resize_sema>0 &&
+	   keepAspect && txtLoader!=null && txtLoader.isOk())
+	{
+            reshape_resize_sema--;
+
+	    int rw=w; int rh=h;
+	    if(zoomImg)
+	    {
+		double    iaspect = (double)txtLoader.getImageWidth()/
+		                    (double)txtLoader.getImageHeight();
+		if(rw<rh)
+		{
+			h = (int) ((rw / iaspect)+0.5);
+		} else {
+			w = (int) ((rh * iaspect)+0.5);
+		}
+	    } else {
+		w = txtLoader.getImageWidth();
+	        h = txtLoader.getImageHeight();
+	    }
+	    if(rw!=w || rh!=h)
+	    {
+    		internalSetSize( w, h );
+		return ; /* the true resize is coming up ... */
+	    }
+	}
+	reshape_resize_sema=1;
+	gl.glViewport (0, 0, w, h);
+	SetCamera();
+    }
+
+
+    protected void DrawObj(boolean blend)
+    {
+	gl.glPushMatrix();
+	    if(blend)
+	    {
+		 gl.glEnable(GL_BLEND);
+		 gl.glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
+	    }
+
+	    gl.glColor4f(1f,1f,1f,1f);
+
+	    if(txtLoader!=null && txtLoader.isOk())
+	    {
+		    gl.glEnable(GL_TEXTURE_2D);
+		    gl.glBegin(GL_QUADS);
+
+			gl.glNormal3f(0f,0f,1f);
+			gl.glTexCoord2f(0f,0f);
+			gl.glVertex2f(0f, 0f);
+
+			gl.glNormal3f(0f,0f,1f);
+			gl.glTexCoord2f(0f,1f);
+			gl.glVertex2f(0f, 1f);
+			
+			gl.glNormal3f(0f,0f,1f);
+			gl.glTexCoord2f(1f,1f);
+			gl.glVertex2f(1f, 1f);
+
+			gl.glNormal3f(0f,0f,1f);
+			gl.glTexCoord2f(1f,0f);
+			gl.glVertex2f(1f, 0f);
+			
+		    gl.glEnd();
+		    gl.glDisable(GL_TEXTURE_2D);
+	    }
+
+	    if(blend)
+		 gl.glDisable(GL_BLEND);
+
+	gl.glPopMatrix();
+    }
+    
+    protected void SetCamera()
+    {
+      float imgwidth   = 1f;
+      float imgheight  = 1f;
+      float txtdx=0f;
+      float txtdy=0f;
+
+      if(txtLoader!=null && txtLoader.isOk())
+      {
+	      Dimension idim = new Dimension(txtLoader.getImageWidth(),
+	      		                     txtLoader.getImageHeight());
+	      Dimension tdim = new Dimension(txtLoader.getTextureWidth(),
+	      		                     txtLoader.getTextureHeight());
+
+	      imgwidth   = (float)idim.width/(float)tdim.width;
+	      imgheight  = (float)idim.height/(float)tdim.height;
+
+	      /*
+              System.out.println("image : "+idim);
+              System.out.println("text  : "+tdim);
+              System.out.println("image/text : "+imgwidth+"/"+imgheight);
+	      */
+      }
+
+      gl.glMatrixMode (GL_PROJECTION);
+      gl.glLoadIdentity ();
+      glu.gluOrtho2D(0, imgwidth,
+      		     0, imgheight);
+
+      gl.glMatrixMode (GL_MODELVIEW);
+      gl.glLoadIdentity ();
+    }
+
+}
+