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1
19 package org.lucane.applications.whiteboard.graph.shapes;
20
21 import java.awt.Graphics  ;
22 import java.awt.Point ;
23 import java.awt.Rectangle ;
24 import java.util.Date ;
25 import java.util.Hashtable ;
26 import java.util.Map ;
27
28 import org.jgraph.graph.AttributeMap;
29 import org.jgraph.graph.DefaultPort;
30 import org.jgraph.graph.GraphConstants;
31 import org.lucane.applications.whiteboard.graph.MyGraph;
32 import org.lucane.applications.whiteboard.graph.cells.DiamondCell;
33
34 class Diamond implements Shape
35 {
36 public void paint(Graphics g, Point start, Point end)
37 {
38 int size = Math.abs(start.x - end.x);
39
40 int minX = Math.min(start.x, end.x);
41 int minY = Math.min(start.y, end.y);
42 int middleX = minX + size/2;
43 int middleY = minY + size/2;
44
45 int[] x = new int[] {minX, middleX, minX+size, middleX};
46 int[] y = new int[] {middleY, minY, middleY, minY+size};
47
48 g.drawPolygon(x, y, x.length);
49 }
50
51 public void addToGraph(MyGraph graph, Point start, Point end)
52 {
53 DiamondCell cell = new DiamondCell("");
54 AttributeMap attrs = new AttributeMap();
55 attrs.put("timestamp", new Date ());
56
57 GraphConstants.setBounds(attrs, getBounds(start, end));
58 GraphConstants.setLineWidth(attrs, graph.getLineWidth());
59 GraphConstants.setBorderColor(attrs, graph.getCellBorder());
60 if(graph.getCellBackground()!=null)
61 {
62 GraphConstants.setBackground(attrs, graph.getCellBackground());
63 GraphConstants.setOpaque(attrs, true);
64 }
65
66 DefaultPort hp = new DefaultPort();
67 cell.add(hp);
68
69 Object [] cells = new Object [] { cell };
70
71 Map attributes = new Hashtable ();
72 attributes.put(cell, attrs);
73 graph.getModel().insert(cells, attributes, null, null, null);
74 }
75
76 private Rectangle getBounds(Point start, Point end)
77 {
78 int size = Math.abs(start.x - end.x);
79
80 int minX = Math.min(start.x, end.x);
81 int minY = Math.min(start.y, end.y);
82
83 return new Rectangle(minX, minY, size, size);
84 }
85 } |
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