Symantec Visual Cafe for Java 2.5/symantec-visual-cafe-2.5-database-dev-edition.iso/VCafe/WDESAMPL.BIN/ExampleApplet.jar/Switcher.class

Java Class File | 1997-06-23 | 4.7 KB | 185 lines

import java.applet.Applet;
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.Label;

public class Switcher extends Applet {
   protected Applet applet;
   protected boolean appletFound = false;
   protected static String defaultNewPackage = "newawt";
   protected static String defaultOldPackage = "oldawt";
   protected static int NUMPARAMETERS = 3;
   protected static boolean DEBUG;

   protected void mayday(String var1) {
      ((Container)this).add("Center", new Label(var1));
      System.err.println("Switcher initialization failed: " + var1);
   }

   public void init() {
      Object var1 = null;
      Object var2 = null;
      String var10 = ((Applet)this).getParameter("APPLETCLASS");
      if (var10 == null) {
         this.mayday("No APPLETCLASS parameter specified");
      } else {
         if (DEBUG) {
            System.out.println("The name of the applet class we're going to try to load: " + var10);
         }

         String var9;
         if (this.oneDotOneIsSupported()) {
            var9 = ((Applet)this).getParameter("NEWPACKAGE");
            if (var9 == null) {
               var9 = defaultNewPackage;
            }

            if (DEBUG) {
               System.out.println("1.1 is supported; package name: " + var9);
            }
         } else {
            var9 = ((Applet)this).getParameter("OLDPACKAGE");
            if (var9 == null) {
               var9 = defaultOldPackage;
            }

            if (DEBUG) {
               System.out.println("1.1 NOT supported; package name: " + var9);
            }
         }

         var10 = var9 + "." + var10;
         if (DEBUG) {
            System.out.println("The fully qualified name of the applet class we're going to try to load: " + var10);
         }

         try {
            this.applet = (Applet)Class.forName(var10).newInstance();
            this.appletFound = true;
            if (DEBUG) {
               System.out.println("Yay! We found the applet class!");
            }
         } catch (ClassNotFoundException var5) {
            this.mayday("Couldn't find applet: " + var10);
            return;
         } catch (IllegalAccessException var6) {
            this.mayday("Is class " + var10 + " public?");
            return;
         } catch (ClassCastException var7) {
            this.mayday(var10 + " isn't an Applet!");
            return;
         } catch (InstantiationException var8) {
            this.mayday("InstantiationException while attempting to create an instance of " + var10);
            return;
         }

         ((Container)this).setLayout(new BorderLayout());
         ((Container)this).add("Center", this.applet);
         if (DEBUG) {
            System.out.println("Successfully loaded class " + var10);
         }

         try {
            this.applet.init();
         } catch (Throwable var4) {
            this.mayday("Exception when calling init() method of " + var10);
            var4.printStackTrace();
            return;
         }

         ((Container)this).validate();
      }
   }

   public void start() {
      if (this.appletFound) {
         this.applet.start();
      }

      if (DEBUG) {
         System.out.println(this.getAppletInfo());
         String[][] var1 = this.getParameterInfo();

         for(int var2 = 0; var2 < var1.length; ++var2) {
            System.out.println("Parameter #" + (var2 + 1) + ": " + var1[var2][0] + ", " + var1[var2][1] + ", " + var1[var2][2]);
         }
      }

   }

   public void stop() {
      if (this.appletFound) {
         this.applet.stop();
      }

   }

   public void destroy() {
      if (this.appletFound) {
         this.applet.destroy();
      }

   }

   public String getAppletInfo() {
      String var1 = "Applet Switcher, version 0.1, by Kathy Walrath";
      Object var2 = null;
      if (this.appletFound) {
         String var3 = this.applet.getAppletInfo();
         if (var3 != null) {
            var1 = var1 + ", running applet: \n" + var3;
         }
      }

      return var1;
   }

   public String[][] getParameterInfo() {
      int var1 = NUMPARAMETERS;
      int var2 = 0;
      int var3 = 0;
      String[][] var5 = null;
      String[] var6 = new String[]{"appletClass", "name", "the name of a class"};
      String[] var7 = new String[]{"oldPackage", "name", "the old applet's package"};
      String[] var8 = new String[]{"newPackage", "name", "the new applet's package"};
      if (this.appletFound) {
         var5 = this.applet.getParameterInfo();
      }

      if (var5 != null) {
         var2 = var5.length;
         var1 += var2;
      }

      String[][] var4;
      for(var4 = new String[var1][]; var3 < var2; ++var3) {
         var4[var3] = var5[var3];
      }

      var4[var3++] = var6;
      var4[var3++] = var7;
      var4[var3] = var8;
      return var4;
   }

   protected boolean oneDotOneIsSupported() {
      try {
         Class var1 = Class.forName("java.awt.AWTEvent");
         if (DEBUG) {
            System.out.println("1.1 class " + var1.getName() + " exists.");
         }

         var1 = Class.forName("java.awt.event.ActionEvent");
         if (DEBUG) {
            System.out.println("1.1 class " + var1.getName() + " exists.");
         }

         System.out.println("This seems to be a 1.1 browser/viewer!");
         return true;
      } catch (Throwable var2) {
         System.out.println("This browser/viewer doesn't seem to support the 1.1 AWT API.");
         return false;
      }
   }
}