guiserver/java/PolygonShape.java

   1 //
   2 //  PolygonShape.java
   3 //  guiserver
   4 //
   5 //  Created by Lutz Mueller on 7/2/07.
   6 //
   7 //
   8 //    Copyright (C) 2007 Lutz Mueller
   9 //
  10 //    This program is free software: you can redistribute it and/or modify
  11 //    it under the terms of the GNU General Public License as published by
  12 //    the Free Software Foundation, either version 3 of the License, or
  13 //    (at your option) any later version.
  14 //
  15 //    This program is distributed in the hope that it will be useful,
  16 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 //    GNU General Public License for more details.
  19 //
  20 //    You should have received a copy of the GNU General Public License
  21 //    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  22 //
  23
  24
  25 import java.lang.*;
  26 import java.awt.*;
  27 import java.awt.color.*;
  28 import java.awt.geom.*;
  29 import java.awt.Polygon;
  30 import java.util.*;
  31
  32 @SuppressWarnings("unchecked")
  33 public class PolygonShape extends Shape {
  34
  35 int pointXd[];
  36 int pointYd[];
  37
  38 int N;
  39
  40 public PolygonShape(StringTokenizer tokens)
  41         {
  42         tag = tokens.nextToken();
  43         N = Integer.parseInt(tokens.nextToken());
  44
  45         pointXd = new int [N];
  46         pointYd = new int [N];
  47
  48         X = Integer.parseInt(tokens.nextToken());
  49         Y = Integer.parseInt(tokens.nextToken());
  50
  51         pointXd[0] = pointYd[0] = 0;
  52
  53         for(int i = 1; i < N; i++)
  54                 {
  55                 pointXd[i] = Integer.parseInt(tokens.nextToken()) - X;
  56                 pointYd[i] = Integer.parseInt(tokens.nextToken()) - Y;
  57                 }
  58
  59         if(tokens.hasMoreTokens())
  60                 paintColor = Shape.getColorParameter(tokens);
  61
  62         stroke = CanvasWidget.currentCanvas.currentStroke;
  63
  64         CanvasWidget.currentCanvas.drawobjects.add(this);
  65         }
  66
  67 public void drawShape(Graphics2D g2)
  68         {
  69         g2.setStroke(stroke);
  70         g2.setPaint(paintColor);
  71
  72 /*
  73         int pX[] = new int [N];
  74         int pY[] = new int [N];
  75
  76         for(int i = 0; i < N; i++)
  77                 {
  78                 pX[i] = pointXd[i] + X;
  79                 pY[i] = pointYd[i] + Y;
  80                 }
  81         g2.drawPolygon(pX, pY, N);
  82 */
  83         Polygon polygon = new Polygon();
  84
  85         for(int i = 0; i < N; i++)
  86                 polygon.addPoint(pointXd[i] + X, pointYd[i] + Y);
  87
  88         g2.draw(polygon);
  89         }
  90
  91 public boolean hasPoint(int x, int y)
  92         {
  93         Polygon polygon = new Polygon();
  94
  95         for(int i = 0; i < N; i++)
  96                 polygon.addPoint(pointXd[i] + X, pointYd[i] + Y);
  97
  98         return(polygon.contains(x, y));
  99         }
 100
 101
 102 }
 103
 104
 105 // eof //