PC Online 1997 May/PCO_5_97.ISO/FilesBBS/OS2/CSIME.ARJ/CSIME.ZIP/csime/Poly.class

Java Class File | 1997-02-09 | 3.6 KB | 187 lines

import java.awt.Graphics;
import java.awt.Polygon;
import java.util.NoSuchElementException;
import java.util.StringTokenizer;

public class Poly extends Area {
   private static final int MINDIST = 8;
   private int _npts;
   private int[] _xpt = new int[16];
   private int[] _ypt = new int[16];
   private int _grabIndex;

   public Poly(int var1, int var2) {
      this.addPoint(var1, var2);
      this._grabIndex = this._npts;
   }

   public Poly(String var1) {
      StringTokenizer var2 = new StringTokenizer(var1, ", \t\n");

      try {
         while(var2.hasMoreTokens()) {
            int var3 = Integer.parseInt(var2.nextToken());
            int var4 = Integer.parseInt(var2.nextToken());
            this.addPoint(var3, var4);
         }
      } catch (NoSuchElementException var5) {
      } catch (NumberFormatException var6) {
      }

      this.close();
   }

   private Poly() {
   }

   public void resize(int var1, int var2) {
      if (this._grabIndex == this._npts) {
         this.addPoint(var1, var2);
      } else if (this._grabIndex == 0) {
         this.setPoint(0, var1, var2);
         this.setPoint(this._npts - 1, var1, var2);
      } else if (this._grabIndex == this._npts - 1) {
         if (Math.abs(var1 - this._xpt[0]) <= 8 && Math.abs(var2 - this._ypt[0]) <= 8) {
            this.setPoint(this._npts - 1, this._xpt[0], this._ypt[0]);
         } else {
            this.setPoint(this._npts - 1, var1, var2);
         }
      } else {
         this.setPoint(this._grabIndex, var1, var2);
      }
   }

   public void translate(int var1, int var2) {
      for(int var3 = 0; var3 < this._npts; ++var3) {
         int[] var10000 = this._xpt;
         var10000[var3] += var1;
         var10000 = this._ypt;
         var10000[var3] += var2;
      }

   }

   public boolean isGrab(int var1, int var2) {
      for(int var3 = 0; var3 < this._npts - 1; ++var3) {
         if (((Area)this).grabPoint(this._xpt[var3], this._ypt[var3], var1, var2)) {
            this._grabIndex = var3;
            return true;
         }
      }

      return false;
   }

   public boolean isSelect(int var1, int var2) {
      for(int var3 = 0; var3 < this._npts - 1; ++var3) {
         if (((Area)this).grabLine(this._xpt[var3], this._ypt[var3], this._xpt[var3 + 1], this._ypt[var3 + 1], var1, var2)) {
            return true;
         }
      }

      return false;
   }

   public boolean inside(int var1, int var2) {
      Polygon var3 = new Polygon(this._xpt, this._ypt, this._npts);
      return var3.inside(var1, var2);
   }

   public boolean isValid() {
      return !this.isClosed() || this._npts >= 4;
   }

   public boolean isComplete() {
      return this.isValid() && this.isClosed();
   }

   public void advance() {
      this._grabIndex = this._npts;
   }

   public void draw(Graphics var1) {
      if (this.isValid()) {
         for(int var2 = 1; var2 < this._npts; ++var2) {
            var1.drawLine(this._xpt[var2 - 1], this._ypt[var2 - 1], this._xpt[var2], this._ypt[var2]);
         }

         if (!this.isClosed()) {
            ((Area)this).drawAnchor(var1, this._xpt[0], this._ypt[0]);
         }

         if (super._selected) {
            for(int var3 = 1; var3 < this._npts; ++var3) {
               ((Area)this).drawPoint(var1, this._xpt[var3], this._ypt[var3]);
            }
         }
      }

   }

   public String getShape() {
      return "POLY";
   }

   public String getCoords() {
      StringBuffer var1 = new StringBuffer();

      for(int var2 = 0; var2 < this._npts; ++var2) {
         if (var2 > 0) {
            var1.append(",");
         }

         var1.append(this._xpt[var2] + "," + this._ypt[var2]);
      }

      return var1.toString();
   }

   public synchronized Object clone() {
      Poly var1 = new Poly();
      var1._npts = this._npts;
      var1._xpt = new int[this._xpt.length];
      var1._ypt = new int[this._ypt.length];
      System.arraycopy(this._xpt, 0, var1._xpt, 0, this._npts);
      System.arraycopy(this._ypt, 0, var1._ypt, 0, this._npts);
      var1._grabIndex = this._grabIndex;
      return var1;
   }

   private void addPoint(int var1, int var2) {
      if (this._npts == this._xpt.length) {
         int[] var3 = new int[this._xpt.length * 2];
         System.arraycopy(this._xpt, 0, var3, 0, this._npts);
         this._xpt = var3;
      }

      if (this._npts == this._ypt.length) {
         int[] var4 = new int[this._ypt.length * 2];
         System.arraycopy(this._ypt, 0, var4, 0, this._npts);
         this._ypt = var4;
      }

      this._xpt[this._npts] = var1;
      this._ypt[this._npts] = var2;
      ++this._npts;
   }

   private void setPoint(int var1, int var2, int var3) {
      if (var1 < this._npts) {
         this._xpt[var1] = var2;
         this._ypt[var1] = var3;
      }

   }

   private boolean isClosed() {
      return this._npts > 1 && this._xpt[0] == this._xpt[this._npts - 1] && this._ypt[0] == this._ypt[this._npts - 1];
   }

   public void close() {
      if (!this.isClosed()) {
         this.addPoint(this._xpt[0], this._ypt[0]);
      }

   }
}