Computer Shopper 139/dpcs0999.iso/Web/CFserver/data1.cab/Java/netscape/application/Range.class

Java Class File | 1999-04-12 | 3.7 KB | 205 lines

package netscape.application;

import netscape.util.ClassInfo;
import netscape.util.Codable;
import netscape.util.CodingException;
import netscape.util.Decoder;
import netscape.util.Encoder;

public class Range implements Codable {
   private static Range nullRange;
   public int index;
   public int length;
   static final String INDEX_KEY = "index";
   static final String LENGTH_KEY = "length";

   public static Range nullRange() {
      if (nullRange == null) {
         nullRange = new Range(-1, 0);
      }

      return nullRange;
   }

   public static Range rangeFromIntersection(Range var0, Range var1) {
      Range var2 = new Range(var0);
      var2.intersectWith(var1);
      return var2;
   }

   public static Range rangeFromUnion(Range var0, Range var1) {
      Range var2 = new Range(var0);
      var2.unionWith(var1);
      return var2;
   }

   public static Range rangeFromIndices(int var0, int var1) {
      return var0 < var1 ? new Range(var0, var1 - var0) : new Range(var1, var0 - var1);
   }

   public Range() {
      this.index = nullRange().index;
      this.length = nullRange().length;
   }

   public Range(int var1, int var2) {
      this.index = var1;
      this.length = var2;
   }

   public Range(Range var1) {
      this.index = var1.index;
      this.length = var1.length;
   }

   public int index() {
      return this.index;
   }

   public int length() {
      return this.length;
   }

   public int lastIndex() {
      return this.index + this.length - 1;
   }

   public boolean equals(Object var1) {
      if (!(var1 instanceof Range)) {
         return false;
      } else {
         Range var2 = (Range)var1;
         return var2.index == this.index && var2.length == this.length;
      }
   }

   public void unionWith(Range var1) {
      this.unionWith(var1.index, var1.length);
   }

   public void unionWith(int var1, int var2) {
      if (this.index == nullRange().index) {
         this.index = var1;
         this.length = var2;
      } else if (var1 != nullRange().index) {
         int var3;
         if (this.index < var1) {
            var3 = this.index;
         } else {
            var3 = var1;
         }

         int var4;
         if (this.index + this.length > var1 + var2) {
            var4 = this.index + this.length;
         } else {
            var4 = var1 + var2;
         }

         this.index = var3;
         this.length = var4 - var3;
      }
   }

   public void intersectWith(Range var1) {
      this.intersectWith(var1.index, var1.length);
   }

   public void intersectWith(int var1, int var2) {
      int var3;
      int var4;
      int var5;
      int var6;
      if (this.index < var1) {
         var3 = this.index;
         var4 = this.length;
         var5 = var1;
         var6 = var2;
      } else {
         var3 = var1;
         var4 = var2;
         var5 = this.index;
         var6 = this.length;
      }

      if (var3 + var4 <= var5) {
         this.index = nullRange().index;
         this.length = nullRange().length;
      } else {
         this.index = var5;
         if (var5 + var6 > var3 + var4) {
            this.length = var3 + var4 - var5;
         } else {
            this.length = var6;
         }
      }
   }

   public String toString() {
      return this.isNullRange() ? "Null range" : "(" + this.index + ", " + this.length + ")";
   }

   public boolean intersects(Range var1) {
      int var3 = this.index;
      int var4 = this.length;
      this.intersectWith(var1);
      boolean var2;
      if (this.index == nullRange().index) {
         var2 = false;
      } else {
         var2 = true;
      }

      this.index = var3;
      this.length = var4;
      return var2;
   }

   public boolean intersects(int var1, int var2) {
      int var4 = this.index;
      int var5 = this.length;
      this.intersectWith(var1, var2);
      boolean var3;
      if (this.index == nullRange().index) {
         var3 = false;
      } else {
         var3 = true;
      }

      this.index = var4;
      this.length = var5;
      return var3;
   }

   public boolean isNullRange() {
      return this.index == nullRange().index;
   }

   public boolean isEmpty() {
      return this.length == 0;
   }

   public boolean contains(int var1) {
      return var1 >= this.index && var1 < this.index + this.length;
   }

   public void describeClassInfo(ClassInfo var1) {
      var1.addClass("netscape.application.Range", 1);
      var1.addField("index", (byte)8);
      var1.addField("length", (byte)8);
   }

   public void encode(Encoder var1) throws CodingException {
      var1.encodeInt("index", this.index);
      var1.encodeInt("length", this.length);
   }

   public void decode(Decoder var1) throws CodingException {
      this.index = var1.decodeInt("index");
      this.length = var1.decodeInt("length");
   }

   public void finishDecoding() throws CodingException {
   }
}