tim/prune/threedee/WindowFactory.java

   1 package tim.prune.threedee;
   2
   3 import javax.swing.JFrame;
   4
   5 import tim.prune.App;
   6
   7 /**
   8  * Factory class for getting a Window
   9  */
  10 public abstract class WindowFactory
  11 {
  12         private static ThreeDWindow _window = null;
  13
  14         /**
  15          * Get a Window object
  16          * @param inApp App object
  17          * @param inFrame parent frame
  18          * @return object if available, otherwise null
  19          */
  20         public static ThreeDWindow getWindow(App inApp, JFrame inFrame)
  21         {
  22                 if (isJava3dEnabled())
  23                 {
  24                         if (_window == null) _window = new Java3DWindow(inApp, inFrame);
  25                         return _window;
  26                 }
  27                 return null;
  28         }
  29
  30
  31         /**
  32          * @return true if 3d capability is installed
  33          */
  34         private static boolean isJava3dEnabled()
  35         {
  36                 boolean has3d = false;
  37                 try
  38                 {
  39                         Class universeClass = Class.forName("com.sun.j3d.utils.universe.SimpleUniverse");
  40                         has3d = true;
  41                 }
  42                 catch (ClassNotFoundException e)
  43                 {
  44                         // no java3d classes available
  45                 }
  46                 return has3d;
  47         }
  48
  49 }