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comparison src/java/de/intevation/mxd/reader/PictureFillSymbolReader.java @ 251:6b80e46b8f38

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Added picture symbol support to the converter.
author raimund renkert <raimund.renkert@intevation.de>
date Fri, 12 Aug 2011 16:08:57 +0200
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children 2cb2f26d0d54
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250:d10fd4de02aa 251:6b80e46b8f38
1 /*
2 * Copyright (c) 2011 by Intevation GmbH, Germany <info@intevation.de>
3 *
4 * This file is part of MXD2map.
5 *
6 * This program is free software under the LGPL (>=v2.1)
7 * Read the file LICENCE.txt coming with the software for details
8 * or visit http://www.gnu.org/licenses/ if it does not exist.
9 *
10 * MXD2map has been developed on behalf of the
11 * Bundesamt fuer Seeschifffahrt und Hydrographie (BSH) in Hamburg
12 * by Intevation GmbH.
13 *
14 * Authors:
15 * Raimund Renkert <raimund.renkert@intevation.de>
16 * Bjoern Schilberg <bjoern.schilberg@intevation.de>
17 * Stephan Holl <stephan.holl@intevation.de>
18 */
19
20 package de.intevation.mxd.reader;
21
22 import java.awt.Color;
23 import java.awt.Image;
24
25 import org.apache.log4j.Logger;
26
27 import com.esri.arcgis.display.ISymbol;
28 import com.esri.arcgis.display.ILineSymbol;
29 import com.esri.arcgis.display.IFillSymbol;
30 import com.esri.arcgis.display.PictureFillSymbol;
31 import com.esri.arcgis.support.ms.stdole.Picture;
32 import com.esri.arcgis.display.IRgbColor;
33 import com.esri.arcgis.display.RgbColor;
34
35 import org.w3c.dom.Element;
36 import java.io.IOException;
37 import java.awt.image.BufferedImage;
38 import java.awt.image.DataBufferByte;
39 import javax.imageio.ImageIO;
40 import java.io.ByteArrayOutputStream;
41
42 import org.apache.commons.codec.binary.Base64;
43 /**
44 * Reads picture fill symbol information.
45 *
46 * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a>
47 */
48 public class PictureFillSymbolReader
49 extends AbstractSymbolReader {
50
51 /**
52 * The logger.
53 */
54 private static final Logger logger =
55 Logger.getLogger(PictureFillSymbolReader.class);
56
57 /**
58 * Private member.
59 */
60 private PictureFillSymbol symbol;
61
62 public PictureFillSymbolReader(ISymbol symbol)
63 throws Exception {
64 logger.debug("contructor()");
65 if(symbol instanceof PictureFillSymbol) {
66 this.symbol = (PictureFillSymbol)symbol;
67 }
68 else {
69 throw new Exception("Not a PictureFillSymbol!");
70 }
71 }
72
73 public PictureFillSymbolReader(IFillSymbol symbol)
74 throws Exception {
75 logger.debug("contructor()");
76 if(symbol instanceof PictureFillSymbol) {
77 this.symbol = (PictureFillSymbol)symbol;
78 }
79 else {
80 throw new Exception("Not a PictureFillSymbol!");
81 }
82 }
83
84 /**
85 * Reads the symbol attributes.
86 *
87 * @return The XML node.
88 */
89 public Element read() {
90 logger.debug("read()");
91 Element symbolElement = util.addSymbol(parent);
92
93 try {
94 symbolElement.setAttribute("name", symbol.getNameString());
95 }
96 catch(IOException ioe) {
97 logger.warn("Could not read name. Setting name to \"default\"");
98 symbolElement.setAttribute("name", "default");
99 }
100
101 try {
102 symbolElement.setAttribute(
103 "x_scale",
104 String.valueOf(symbol.getXScale()));
105 }
106 catch(IOException ioe) {
107 logger.warn("Could not read x-scale.");
108 }
109
110 try {
111 symbolElement.setAttribute(
112 "y_scale",
113 String.valueOf(symbol.getYScale()));
114 }
115 catch(IOException ioe) {
116 logger.warn("Could not read y-scale.");
117 }
118
119 try {
120 symbolElement.setAttribute(
121 "xseparation",
122 String.valueOf(symbol.getXSeparation()));
123 }
124 catch(IOException ioe) {
125 logger.warn("Could not read x-separation.");
126 }
127
128 try {
129 symbolElement.setAttribute(
130 "yseparation",
131 String.valueOf(symbol.getYSeparation()));
132 }
133 catch(IOException ioe) {
134 logger.warn(
135 "Could not read y-separation.");
136 }
137
138 try {
139 ILineSymbol ls = symbol.getOutline();
140 LineSymbolReader lsr = new LineSymbolReader();
141 if(lsr.canRead(ls)) {
142 lsr.setSymbol(ls);
143 lsr.setUtil(util);
144 lsr.setParent(symbolElement);
145 lsr.read();
146 }
147 else {
148 logger.debug("The type of " + ls.getClass().toString() +
149 " is not implemented!");
150 }
151 }
152 catch(Exception e) {
153 logger.warn("Could not read outline.");
154 }
155
156 //Read the picture and convert to base64.
157 try {
158 Picture p = symbol.getPicture();
159 Image i = p.toImage();
160 if(i instanceof BufferedImage) {
161 BufferedImage bi = (BufferedImage)i;
162 ByteArrayOutputStream baos = new ByteArrayOutputStream();
163 //Get byte array from image.
164 ImageIO.write(bi, "BMP", baos);
165 Base64 encoder = new Base64();
166 //encode in a base64 string
167 String pict = encoder.encodeBase64String(baos.toByteArray());
168 symbolElement.setAttribute("picture", pict);
169
170 //Get transparent color.
171 RgbColor c = new RgbColor();
172 c.setRGB(symbol.getBitmapTransparencyColor().getRGB());
173 Color transp = new Color (
174 c.getRed(),
175 c.getGreen(),
176 c.getBlue());
177 symbolElement.setAttribute(
178 "transparent_color",
179 String.valueOf(transp.getRGB()));
180 }
181 else {
182 logger.warn("Could not read image symbol.");
183 return null;
184 }
185 }
186 catch(IOException ioe) {
187 logger.warn("Could not read picture.");
188 }
189 symbolElement.setAttribute("type", "fill");
190 symbolElement.setAttribute("style", "picture");
191
192 return symbolElement;
193 }
194 }
195 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
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