01: /*
02: * The Unified Mapping Platform (JUMP) is an extensible, interactive GUI
03: * for visualizing and manipulating spatial features with geometry and attributes.
04: *
05: * Copyright (C) 2003 Vivid Solutions
06: *
07: * This program is free software; you can redistribute it and/or
08: * modify it under the terms of the GNU General Public License
09: * as published by the Free Software Foundation; either version 2
10: * of the License, or (at your option) any later version.
11: *
12: * This program is distributed in the hope that it will be useful,
13: * but WITHOUT ANY WARRANTY; without even the implied warranty of
14: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15: * GNU General Public License for more details.
16: *
17: * You should have received a copy of the GNU General Public License
18: * along with this program; if not, write to the Free Software
19: * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20: *
21: * For more information, contact:
22: *
23: * Vivid Solutions
24: * Suite #1A
25: * 2328 Government Street
26: * Victoria BC V8T 5G5
27: * Canada
28: *
29: * (250)385-6040
30: * www.vividsolutions.com
31: */
32:
33: package com.vividsolutions.jump.workbench.ui.renderer.style;
34:
35: import java.awt.Graphics2D;
36: import java.awt.geom.Point2D;
37:
38: import javax.swing.Icon;
39:
40: import com.vividsolutions.jts.geom.Coordinate;
41: import com.vividsolutions.jts.geom.LineString;
42: import com.vividsolutions.jump.workbench.ui.Viewport;
43:
44: /**
45: * Base class for styles painting linestring vertices.
46: *
47: * @author Martin Davis
48: * @version 1.0
49: */
50: public abstract class LineStringVertexStyle extends LineStringStyle
51: implements ChoosableStyle {
52:
53: protected String name;
54:
55: protected Icon icon;
56:
57: public LineStringVertexStyle(String name, Icon icon) {
58: super (name, icon);
59: this .name = name;
60: this .icon = icon;
61: }
62:
63: protected void paintLineString(LineString lineString,
64: Viewport viewport, Graphics2D graphics) throws Exception {
65: int numPtsToRender = lineString.getNumPoints();
66: // don't paint end vertex twice
67: if (lineString.isClosed())
68: numPtsToRender--;
69: for (int i = 0; i < numPtsToRender; i++) {
70: Coordinate p = lineString.getCoordinateN(i);
71: paint(viewport.toViewPoint(new Point2D.Double(p.x, p.y)),
72: lineString, i, viewport, graphics);
73: }
74: }
75:
76: protected abstract void paint(Point2D p0, LineString line,
77: int index, Viewport viewport, Graphics2D graphics)
78: throws Exception;
79:
80: public String getName() {
81: return name;
82: }
83:
84: public Icon getIcon() {
85: return icon;
86: }
87: }
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