root / trunk / libraries / libRaster / src / org / gvsig / raster / datastruct / serializer / ColorTableRmfSerializer.java @ 20866
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2007 IVER T.I. and Generalitat Valenciana.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*/
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package org.gvsig.raster.datastruct.serializer; |
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import java.awt.Color; |
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import java.io.IOException; |
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import java.io.Reader; |
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import java.io.StringReader; |
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import java.util.ArrayList; |
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import org.gvsig.raster.dataset.io.rmf.ClassSerializer; |
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import org.gvsig.raster.dataset.io.rmf.ParsingException; |
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import org.gvsig.raster.datastruct.ColorItem; |
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import org.gvsig.raster.datastruct.ColorTable; |
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import org.kxml2.io.KXmlParser; |
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import org.xmlpull.v1.XmlPullParserException; |
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/**
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* <P>
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* Clase para convertir a XML una tabla de color y obtener la tabla desde XML.
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* Esta clase implementa el interfaz IRmfBlock con los m?todos de escritura y
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* lectura. Estos ser?n utilizados por el gestor de ficheros RMF para escribir y
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* leer datos.
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* </P>
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* <P>
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* La estructura XML de una tabla de color es la siguiente:
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* </P>
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* <P>
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* <ColorTable name="nombre" version="1.1"><BR>
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* <Color value="0.0" name="rojo" rgb="#FF34FF" interpolated="50"/><BR>
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* <Color value="1.0" name="rojo" rgb="#FF34FF" interpolated="50"/><BR>
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* <Alpha value="0.0" number="255" interpolated="50"/><BR>
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* <NoData rgba="#"><BR>
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* </ColorTable><BR>
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*
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* @version 23/04/2007
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* @author Nacho Brodin (nachobrodin@gmail.com)
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*/
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public class ColorTableRmfSerializer extends ClassSerializer { |
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private final String MAIN_TAG = "ColorTable"; |
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private ColorTable colorTable = null; |
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/**
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* Constructor. Asigna la tabla a serializar.
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* @param ColorTable tabla a convertir en XML
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*/
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public ColorTableRmfSerializer(ColorTable colorTable) {
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this.colorTable = colorTable;
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} |
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/**
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* Constructor.
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*/
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public ColorTableRmfSerializer() {
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} |
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/**
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* Devuelve el color si lo encuentra en el arraylist y lo elimina, en caso
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* contrario devuelve null
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* @param list
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* @param value
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* @return
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*/
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private static ColorItem getColorItem(ArrayList list, double value) { |
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for (int i = 0; i < list.size(); i++) { |
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if (((ColorItem) list.get(i)).getValue() == value) {
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return (ColorItem) list.remove(i);
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} |
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} |
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return null; |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.dataset.io.rmf.IRmfBlock#read(java.lang.String)
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*/
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public void read(String xml) throws ParsingException { |
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String paletteName = ""; |
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boolean interpolated = true; |
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KXmlParser parser = new KXmlParser();
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Reader reader = new StringReader(xml); |
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try {
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parser.setInput(reader); |
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} catch (XmlPullParserException e) {
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throw new ParsingException(xml); |
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} |
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try {
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ArrayList rows = new ArrayList(); |
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int tag = parser.nextTag();
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if (parser.getEventType() != KXmlParser.END_DOCUMENT) {
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parser.require(KXmlParser.START_TAG, null, MAIN_TAG);
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for (int i = 0; i < parser.getAttributeCount(); i++) { |
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if (parser.getAttributeName(i).equals("name")) |
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paletteName = parser.getAttributeValue(i); |
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if (parser.getAttributeName(i).equals("interpolated")) |
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interpolated = parser.getAttributeValue(i).equals("1");
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} |
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while (tag != KXmlParser.END_DOCUMENT) {
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switch (tag) {
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case KXmlParser.START_TAG:
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if (parser.getName().equals("Color")) { |
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ColorItem colorItem = new ColorItem();
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int a = 255; |
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for (int i = 0; i < parser.getAttributeCount(); i++) { |
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if (parser.getAttributeName(i).equals("value")) { |
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colorItem.setValue(Double.parseDouble((String) parser.getAttributeValue(i))); |
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ColorItem aux = getColorItem(rows, Double.parseDouble((String) parser.getAttributeValue(i))); |
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if (aux != null) |
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a = aux.getColor().getAlpha(); |
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} |
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if (parser.getAttributeName(i).equals("name")) { |
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colorItem.setNameClass((String) parser.getAttributeValue(i));
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} |
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if (parser.getAttributeName(i).equals("rgb")) { |
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String rgb = parser.getAttributeValue(i);
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int r = Integer.valueOf(rgb.substring(0, rgb.indexOf(","))).intValue(); |
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int g = Integer.valueOf(rgb.substring(rgb.indexOf(",") + 1, rgb.lastIndexOf(","))).intValue(); |
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int b = Integer.valueOf(rgb.substring(rgb.lastIndexOf(",") + 1, rgb.length())).intValue(); |
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colorItem.setColor(new Color(r, g, b, a)); |
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} |
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if (parser.getAttributeName(i).equals("interpolated")) { |
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colorItem.setInterpolated(Double.parseDouble((String) parser.getAttributeValue(i))); |
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} |
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} |
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rows.add(colorItem); |
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break;
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} |
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if (parser.getName().equals("Alpha")) { |
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ColorItem colorItem = new ColorItem();
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for (int i = 0; i < parser.getAttributeCount(); i++) { |
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if (parser.getAttributeName(i).equals("value")) { |
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colorItem.setValue(Double.parseDouble((String) parser.getAttributeValue(i))); |
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ColorItem aux = getColorItem(rows, Double.parseDouble((String) parser.getAttributeValue(i))); |
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if (aux != null) { |
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colorItem.setNameClass(aux.getNameClass()); |
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colorItem.setInterpolated(aux.getInterpolated()); |
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colorItem.setColor(new Color(aux.getColor().getRed(), aux.getColor().getGreen(), aux.getColor().getBlue(), colorItem.getColor().getAlpha())); |
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} |
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} |
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if (parser.getAttributeName(i).equals("alpha")) { |
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int a = Integer.parseInt(parser.getAttributeValue(i)); |
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colorItem.setColor(new Color(colorItem.getColor().getRed(), colorItem.getColor().getGreen(), colorItem.getColor().getBlue(), a)); |
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} |
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if (parser.getAttributeName(i).equals("interpolated")) { |
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colorItem.setInterpolated(Double.parseDouble((String) parser.getAttributeValue(i))); |
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} |
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} |
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rows.add(colorItem); |
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break;
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} |
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break;
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} |
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tag = parser.next(); |
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} |
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parser.require(KXmlParser.END_DOCUMENT, null, null); |
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} |
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colorTable = new ColorTable();
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colorTable.setName(paletteName); |
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colorTable.createPaletteFromColorItems(rows, false);
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colorTable.setInterpolated(interpolated); |
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} catch (XmlPullParserException e) {
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throw new ParsingException(xml); |
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} catch (IOException e) { |
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throw new ParsingException(xml); |
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} |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.dataset.io.rmf.IRmfBlock#write()
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*/
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public String write() { |
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StringBuffer b = new StringBuffer(); |
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if (colorTable == null) |
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return ""; |
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b.append("<" + MAIN_TAG + " name=\"" + colorTable.getName() + "\" interpolated=\"" + (colorTable.isInterpolated()?"1":"0") + "\" version=\"1.1\">\n"); |
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for (int i = 0; i < colorTable.getColorItems().size(); i++) { |
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b.append("\t<Color");
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ColorItem colorItem = (ColorItem) colorTable.getColorItems().get(i); |
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b.append(" value=\"" + colorItem.getValue() + "\""); |
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b.append(" name=\"" + colorItem.getNameClass() + "\""); |
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Color c = colorItem.getColor();
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b.append(" rgb=\"" + c.getRed() + "," + c.getGreen() + "," + c.getBlue() + "\""); |
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b.append(" interpolated=\"" + colorItem.getInterpolated() + "\""); |
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b.append("/>\n");
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} |
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for (int i = 0; i < colorTable.getColorItems().size(); i++) { |
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b.append("\t<Alpha");
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ColorItem colorItem = (ColorItem) colorTable.getColorItems().get(i); |
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b.append(" value=\"" + colorItem.getValue() + "\""); |
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Color c = colorItem.getColor();
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b.append(" alpha=\"" + c.getAlpha() + "\""); |
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b.append(" interpolated=\"" + colorItem.getInterpolated() + "\""); |
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b.append("/>\n");
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} |
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b.append("</" + MAIN_TAG + ">\n"); |
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return b.toString();
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.dataset.io.rmf.IRmfBlock#getResult()
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*/
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public Object getResult() { |
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return colorTable;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.dataset.io.rmf.IRmfBlock#getMainTag()
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*/
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public String getMainTag() { |
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return MAIN_TAG;
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} |
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} |