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: public abstract class LineStringEndpointStyle extends LineStringStyle
45: implements ChoosableStyle {
46: private boolean start;
47:
48: protected String name;
49:
50: protected Icon icon;
51:
52: public LineStringEndpointStyle(String name, Icon icon, boolean start) {
53: super (name, icon);
54: this .name = name;
55: this .icon = icon;
56: this .start = start;
57: }
58:
59: protected void paintLineString(LineString lineString,
60: Viewport viewport, Graphics2D graphics) throws Exception {
61: if (lineString.isEmpty()) {
62: return;
63: }
64:
65: paint(start ? lineString.getCoordinateN(0) : lineString
66: .getCoordinateN(lineString.getNumPoints() - 1),
67: start ? lineString.getCoordinateN(1) : lineString
68: .getCoordinateN(lineString.getNumPoints() - 2),
69: viewport, graphics);
70: }
71:
72: private void paint(Coordinate terminal, Coordinate next,
73: Viewport viewport, Graphics2D graphics) throws Exception {
74: paint(viewport.toViewPoint(new Point2D.Double(terminal.x,
75: terminal.y)), viewport.toViewPoint(new Point2D.Double(
76: next.x, next.y)), viewport, graphics);
77: }
78:
79: protected abstract void paint(Point2D terminal, Point2D next,
80: Viewport viewport, Graphics2D graphics) throws Exception;
81:
82: public String getName() {
83: return name;
84: }
85:
86: public Icon getIcon() {
87: return icon;
88: }
89: }
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