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Java > Open Source Codes > org > lucane > applications > whiteboard > graph > shapes > SimpleArrow


1 /*
2  * Lucane - a collaborative platform
3  * Copyright (C) 2004 Vincent Fiack <vfiack@mail15.com>
4  *
5  * This library is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU Lesser General Public
7  * License as published by the Free Software Foundation; either
8  * version 2.1 of the License, or (at your option) any later version.
9  *
10  * This library is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13  * Lesser General Public License for more details.
14  *
15  * You should have received a copy of the GNU Lesser General Public
16  * License along with this library; if not, write to the Free Software
17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18  */
19 package org.lucane.applications.whiteboard.graph.shapes;
20
21 import java.awt.Graphics JavaDoc;
22 import java.awt.Point JavaDoc;
23 import java.util.ArrayList JavaDoc;
24 import java.util.Date JavaDoc;
25 import java.util.Hashtable JavaDoc;
26 import java.util.Map JavaDoc;
27
28 import org.jgraph.graph.AttributeMap;
29 import org.jgraph.graph.DefaultEdge;
30 import org.jgraph.graph.GraphConstants;
31 import org.lucane.applications.whiteboard.graph.MyGraph;
32
33 class SimpleArrow implements Shape
34 {
35     public void paint(Graphics JavaDoc g, Point JavaDoc start, Point JavaDoc end)
36     {
37         g.drawLine(start.x, start.y, end.x, end.y);
38     }
39     
40     public void addToGraph(MyGraph graph, Point JavaDoc start, Point JavaDoc end)
41     {
42         DefaultEdge edge = new DefaultEdge();
43         Map JavaDoc attrs = new AttributeMap();
44         attrs.put("timestamp", new Date JavaDoc());
45         
46         int arrow = GraphConstants.ARROW_CLASSIC;
47         ArrayList JavaDoc points = new ArrayList JavaDoc();
48         points.add(start);
49         points.add(end);
50         GraphConstants.setPoints(attrs, points);
51         GraphConstants.setLineWidth(attrs, graph.getLineWidth());
52         GraphConstants.setLineColor(attrs, graph.getCellBorder());
53         GraphConstants.setDashPattern(attrs, graph.getDashPattern());
54
55         GraphConstants.setLineEnd(attrs, arrow);
56         GraphConstants.setEndFill(attrs, true);
57
58         Object JavaDoc[] cells = new Object JavaDoc[] { edge };
59         Map JavaDoc attributes = new Hashtable JavaDoc();
60         attributes.put(edge, attrs);
61
62         graph.getModel().insert(cells, attributes, null, null, null);
63     }
64 }
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