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+/*
+ * Copyright (c) 2005 Sun Microsystems, Inc. All Rights Reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * 
+ * - Redistribution of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ * - Redistribution in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * 
+ * Neither the name of Sun Microsystems, Inc. or the names of
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ * 
+ * This software is provided "AS IS," without a warranty of any kind. ALL
+ * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
+ * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
+ * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
+ * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
+ * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
+ * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
+ * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
+ * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
+ * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
+ * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
+ * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+ * 
+ * You acknowledge that this software is not designed or intended for use
+ * in the design, construction, operation or maintenance of any nuclear
+ * facility.
+ * 
+ * Sun gratefully acknowledges that this software was originally authored
+ * and developed by Kenneth Bradley Russell and Christopher John Kline.
+ */
+
+package demos.xtrans;
+
+import java.awt.*;
+import java.awt.geom.*;
+
+/** Specifies how the XTDesktopPane creates new transitions.
+ *
+ * @author Kenneth Russell
+ */
+
+public interface XTTransitionManager {
+  /** Create a new transition for the given component.
+      <ul>
+
+      <li> The passed component's bounds indicate the location of the
+      component on the desktop. The (x,y) of the bounds correspond to
+      the upper left of the component; note that this differs from the
+      OpenGL coordinate system.
+
+      <li> The <code>isAddition</code> parameter indicates whether
+      the component is being added to or removed from the desktop.
+
+      <li> The <code>oglViewportOfDesktop</code> specifies the
+      rectangle corresponding to the entire desktop pane in the
+      default OpenGL coordinate system with the (x, y) origin of the
+      rectangle at the lower left. This rectangle should be used in
+      conjunction with the component's bounds and the
+      <code>viewportOffsetFromOrigin</code> to determine where to draw
+      the vertices for the component.
+
+      <li> The <code>viewportOffsetFromOrigin</code> specifies the
+      current OpenGL viewport's offset from the origin of the OpenGL
+      coordinate system. The XTDesktopPane re-centers the OpenGL
+      viewport around each component so any perspective effects appear
+      symmetric. This offset should be subtracted from the translation
+      of the component or its vertex locations.
+
+      <li> The <code>oglTexCoordsOnBackBuffer</code> specifies the
+      texture coordinates of the passed component on the back
+      buffer. The (x,y) of this rectangle specifies the lower-left
+      corner of the image corresponding to the component. </ul>
+  */
+  public XTTransition createTransitionForComponent(Component c,
+                                                   boolean isAddition,
+                                                   Rectangle   oglViewportOfDesktop,
+                                                   Point       viewportOffsetFromOrigin,
+                                                   Rectangle2D oglTexCoordsOnBackBuffer);
+}