gvsig-raster / org.gvsig.raster / trunk / org.gvsig.raster / org.gvsig.raster.lib / org.gvsig.raster.lib.impl / src / main / java / org / gvsig / raster / impl / datastruct / persistence / DefaultColorTableLibrary.java @ 162
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/* gvSIG. Geographic Information System of the Valencian Government
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*
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* Copyright (C) 2007-2008 Infrastructures and Transports Department
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* of the Valencian Government (CIT)
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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., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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*/
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package org.gvsig.raster.impl.datastruct.persistence; |
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import java.awt.Color; |
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import java.io.File; |
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import java.io.FileInputStream; |
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import java.io.FileNotFoundException; |
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import java.io.FileOutputStream; |
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import java.io.FileWriter; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.io.InputStreamReader; |
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import java.io.OutputStreamWriter; |
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import java.io.StringReader; |
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import java.net.URL; |
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import java.util.ArrayList; |
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import org.gvsig.fmap.dal.coverage.datastruct.ColorItem; |
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import org.gvsig.fmap.dal.coverage.datastruct.ColorTableLibrary; |
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import org.gvsig.fmap.dal.coverage.store.props.ColorTable; |
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import org.gvsig.raster.impl.datastruct.ColorItemImpl; |
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import org.gvsig.raster.impl.store.properties.DataStoreColorTable; |
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import org.kxml2.io.KXmlParser; |
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import org.kxml2.io.KXmlSerializer; |
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import org.xmlpull.v1.XmlPullParserException; |
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/**
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* La clase ColorTableLibraryPersistence sirve para controlar las tablas de color
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* genericas, como si fuera una libreria de tablas de color. Aqu? se comprueban
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* los cambios de versi?n.
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*
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* @version 02/07/2007
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* @author BorSanZa - Borja S?nchez Zamorano (borja.sanchez@iver.es)
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*/
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public class DefaultColorTableLibrary implements ColorTableLibrary { |
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private static DefaultColorTableLibrary instance = null; |
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/**
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* Gets the ColorTableLibrary
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* @return
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*/
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public static ColorTableLibrary getInstance() { |
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if(instance == null) |
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instance = new DefaultColorTableLibrary();
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return instance;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.dal.coverage.datastruct.ColorTableLibrary#createColorTable()
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*/
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public ColorTable createColorTable() {
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return new DataStoreColorTable(); |
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} |
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/**
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* Devuelve la lista de ficheros de paletas, si no existe el fichero devolvera
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* una lista vacia
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* @param palettesBasePath
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* @return
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*/
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private ArrayList<String> getPaletteFileListDisc(String palettesBasePath) { |
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updateVersion(palettesBasePath); |
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File paletteFiles = new File(palettesBasePath); |
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ArrayList<String> fileList = new ArrayList<String>(); |
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if (paletteFiles.exists()) {
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File[] list = paletteFiles.listFiles(); |
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for (int i = 0; i < list.length; i++) |
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fileList.add(list[i].getName()); |
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} |
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return fileList;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.dal.coverage.datastruct.ColorTableLibrary#getPaletteFileList(java.lang.String)
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*/
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public ArrayList<String> getPaletteFileList(String palettesBasePath) { |
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return getPaletteFileList(palettesBasePath, true); |
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} |
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/**
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* Devuelve la lista de ficheros de paletas, en caso de que no exista la
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* paleta y se especifique forceCreate a true, se creara la paleta por defecto.
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* @param palettesBasePath
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* @param forceCreate
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* @return
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*/
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public ArrayList<String> getPaletteFileList(String palettesBasePath, boolean forceCreate) { |
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ArrayList <String>fileList = getPaletteFileListDisc(palettesBasePath); |
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if (forceCreate && (fileList.size() == 0)) { |
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DefaultColorTableLibrary persistence = new DefaultColorTableLibrary();
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createVersionFromXML(palettesBasePath, persistence.getDefaultPaletteXML()); |
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fileList = getPaletteFileListDisc(palettesBasePath); |
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} |
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return fileList;
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} |
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/**
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* Devuelve el XML de una paleta por defecto
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* @return
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*/
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public String getDefaultPaletteXML() { |
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URL url = getClass().getResource("xml/palettes.xml"); |
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StringBuffer contents = new StringBuffer(); |
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try {
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InputStream inputStream = url.openStream();
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int i;
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while (true) { |
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i = inputStream.read(); |
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if (i == -1) break; |
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char c = (char) i; |
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contents.append(c); |
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} |
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inputStream.close(); |
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} catch (IOException e) { |
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e.printStackTrace(); |
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} |
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return contents.toString();
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} |
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/**
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* Crea los ficheros que forman la paleta de color de la version 1.1 a traves
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* de un XML que se le pasa por parametro
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* @param palettesPath
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*/
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private void createVersionFromXML(String palettesBasePath, String xml) { |
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new File(palettesBasePath).mkdir(); |
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KXmlParser parser = new KXmlParser();
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StringReader reader = new StringReader(xml); |
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try {
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parser.setInput(reader); |
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int tag = parser.nextTag();
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parser.require(KXmlParser.START_TAG, null, "palettes"); |
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tag = parser.nextTag(); |
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parser.require(KXmlParser.START_TAG, null, "palette_list"); |
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parser.skipSubTree(); |
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parser.require(KXmlParser.END_TAG, null, "palette_list"); |
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tag = parser.nextTag(); |
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while (tag == KXmlParser.START_TAG) {
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parser.require(KXmlParser.START_TAG, null, "palette"); |
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if (parser.getAttributeCount() == 2) { |
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// Generar nuevo fichero
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KXmlSerializer parserOutput = new KXmlSerializer();
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FileOutputStream fileOutputStream = new FileOutputStream(palettesBasePath + File.separator + parser.getAttributeValue(0) + ".xml"); |
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parserOutput.setOutput(fileOutputStream, null);
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parserOutput.startDocument("UTF-8", null); |
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parserOutput.startTag(null, "ColorTable"); |
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parserOutput.attribute(null, "name", parser.getAttributeValue(0)); |
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parserOutput.attribute(null, "version", "1.1"); |
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tag = parser.nextTag(); |
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parser.require(KXmlParser.START_TAG, null, "table"); |
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tag = parser.nextTag(); |
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parserOutput.text("\n");
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ArrayList<ColorItem> items = new ArrayList<ColorItem>(); |
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while (tag == KXmlParser.START_TAG) {
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parser.require(KXmlParser.START_TAG, null, "entry"); |
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if (parser.getAttributeCount() == 3) { |
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String rgb = parser.getAttributeValue(1).substring(parser.getAttributeValue(1).indexOf(",") + 1, parser.getAttributeValue(1).length()); |
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int a = Integer.valueOf(parser.getAttributeValue(1).substring(0, parser.getAttributeValue(1).indexOf(","))).intValue(); |
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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 colorItem = new ColorItemImpl();
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colorItem.setColor(new Color(r, g, b, a)); |
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colorItem.setInterpolated(50);
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colorItem.setNameClass(parser.getAttributeValue(0));
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colorItem.setValue(Double.parseDouble(parser.getAttributeValue(2))); |
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items.add(colorItem); |
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} |
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tag = parser.nextTag(); |
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parser.require(KXmlParser.END_TAG, null, "entry"); |
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tag = parser.nextTag(); |
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} |
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parser.require(KXmlParser.END_TAG, null, "table"); |
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tag = parser.nextTag(); |
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ColorTable colorTable = new DataStoreColorTable();
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colorTable.createPaletteFromColorItems(items, true);
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items = colorTable.getColorItems(); |
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for (int i = 0; i < items.size(); i++) { |
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ColorItem colorItem = (ColorItem) items.get(i); |
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parserOutput.startTag(null, "Color"); |
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parserOutput.attribute(null, "value", String.valueOf(colorItem.getValue())); |
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parserOutput.attribute(null, "name", String.valueOf(colorItem.getNameClass())); |
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Color color = colorItem.getColor();
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parserOutput.attribute(null, "rgb", String.valueOf(color.getRed() + "," + color.getGreen() + "," + color.getBlue())); |
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parserOutput.attribute(null, "interpolated", String.valueOf(colorItem.getInterpolated())); |
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parserOutput.endTag(null, "Color"); |
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parserOutput.text("\n");
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} |
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for (int i = 0; i < items.size(); i++) { |
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ColorItem colorItem = (ColorItem) items.get(i); |
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parserOutput.startTag(null, "Alpha"); |
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parserOutput.attribute(null, "value", String.valueOf(colorItem.getValue())); |
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parserOutput.attribute(null, "alpha", String.valueOf(colorItem.getColor().getAlpha())); |
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parserOutput.attribute(null, "interpolated", String.valueOf(colorItem.getInterpolated())); |
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parserOutput.endTag(null, "Alpha"); |
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parserOutput.text("\n");
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} |
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parserOutput.endTag(null, "ColorTable"); |
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parserOutput.text("\n");
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parserOutput.endDocument(); |
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// Cerrar nuevo fichero
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fileOutputStream.close(); |
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} |
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parser.require(KXmlParser.END_TAG, null, "palette"); |
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tag = parser.nextTag(); |
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} |
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parser.require(KXmlParser.END_TAG, null, "palettes"); |
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} catch (XmlPullParserException xmlEx) {
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System.out.println("El fichero de paletas predeterminadas no tiene la estructura correcta:\n " + xmlEx.getMessage()); |
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} catch (IOException e) { |
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} |
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} |
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/**
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* Si existe la version de paleta 1.1, no lo actualizar?, en caso contrario,
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* buscara la version 1.0 y si lo encuentra lo subir? a la 1.1
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* @param palettesPath
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*/
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public void updateVersion_1_0_to_1_1(String palettesBasePath) { |
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// Si no existe la paleta antigua, pero si que existe la copia de seguridad,
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// la restauramos
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File palettesFile = new File(new File(palettesBasePath).getParent().toString() + File.separator + "palettes.xml"); |
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if (!palettesFile.exists()) {
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// Cambiar nombre a antiguo fichero
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File oldFile = new File(new File(palettesBasePath).getParent().toString() + File.separator + "palettes.xml~"); |
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if (oldFile.exists()) {
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oldFile.renameTo(new File(new File(palettesBasePath).getParent().toString() + File.separator + "palettes.xml")); |
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} else {
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DefaultColorTableLibrary ctlp = new DefaultColorTableLibrary();
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String text = ctlp.getDefaultPaletteXML();
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palettesFile = new File(new File(palettesBasePath).getParent().toString() + File.separator + "palettes.xml"); |
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try {
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FileWriter writer = new FileWriter(palettesFile); |
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writer.write(text); |
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writer.close(); |
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} catch (IOException e) { |
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} |
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} |
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} |
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// Si existe el directorio de la version 1.1 no hacemos la migraci?n
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File directoryFile = new File(palettesBasePath); |
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if (directoryFile.exists())
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return;
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// Si no encontramos la paleta antigua, nos olvidamos de continuar
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palettesFile = new File(new File(palettesBasePath).getParent().toString() + File.separator + "palettes.xml"); |
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if (!palettesFile.exists())
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return;
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// Paleta antigua encontrada, podemos migrar a la versi?n nueva
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try {
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FileInputStream inputStream = new FileInputStream(palettesFile); |
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StringBuffer contents = new StringBuffer(); |
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try {
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int i;
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while (true) { |
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i = inputStream.read(); |
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if (i == -1) break; |
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char c = (char) i; |
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contents.append(c); |
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} |
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} catch (IOException e) { |
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e.printStackTrace(); |
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} |
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createVersionFromXML(palettesBasePath, contents.toString()); |
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inputStream.close(); |
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} catch (FileNotFoundException fnfEx) { |
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fnfEx.printStackTrace(); |
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} catch (IOException e) { |
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e.printStackTrace(); |
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} |
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} |
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/**
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* Si existe la version de paleta 1.0, la actualizara a la 1.1 y renombrar? la
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* antigua version.
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* @param palettesBasePath
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* @param colorTable
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*/
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public void save_to_1_1(String palettesBasePath, ColorTable colorTable) { |
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try {
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// Generar nuevo fichero
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KXmlSerializer parserOutput = new KXmlSerializer();
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FileOutputStream out = new FileOutputStream(palettesBasePath + File.separator + colorTable.getName() + ".xml"); |
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OutputStreamWriter writer = new OutputStreamWriter(out, "UTF8"); |
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parserOutput.setOutput(writer); |
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parserOutput.startDocument("UTF-8", null); |
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parserOutput.startTag(null, "ColorTable"); |
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parserOutput.attribute(null, "name", colorTable.getName()); |
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parserOutput.attribute(null, "version", "1.1"); |
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parserOutput.text("\n");
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ArrayList<ColorItem> items = colorTable.getColorItems();
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for (int i = 0; i < items.size(); i++) { |
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ColorItem colorItem = (ColorItem) items.get(i); |
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parserOutput.startTag(null, "Color"); |
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parserOutput.attribute(null, "value", String.valueOf(colorItem.getValue())); |
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if (colorItem.getNameClass() != null) |
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parserOutput.attribute(null, "name", String.valueOf(colorItem.getNameClass())); |
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else
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parserOutput.attribute(null, "name", ""); |
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Color color = colorItem.getColor();
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parserOutput.attribute(null, "rgb", String.valueOf(color.getRed() + "," + color.getGreen() + "," + color.getBlue())); |
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parserOutput.attribute(null, "interpolated", String.valueOf(colorItem.getInterpolated())); |
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parserOutput.endTag(null, "Color"); |
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parserOutput.text("\n");
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} |
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for (int i = 0; i < items.size(); i++) { |
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ColorItem colorItem = (ColorItem) items.get(i); |
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parserOutput.startTag(null, "Alpha"); |
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parserOutput.attribute(null, "value", String.valueOf(colorItem.getValue())); |
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parserOutput.attribute(null, "alpha", String.valueOf(colorItem.getColor().getAlpha())); |
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parserOutput.attribute(null, "interpolated", String.valueOf(colorItem.getInterpolated())); |
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parserOutput.endTag(null, "Alpha"); |
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parserOutput.text("\n");
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} |
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parserOutput.endTag(null, "ColorTable"); |
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parserOutput.text("\n");
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parserOutput.endDocument(); |
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// Cerrar nuevo fichero
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writer.close(); |
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} catch (FileNotFoundException e) { |
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e.printStackTrace(); |
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} catch (IOException e) { |
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e.printStackTrace(); |
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} |
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} |
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/**
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* Invocar? todos los metodos de actualizaciones de version
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* @param palettesBasePath
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*/
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public void updateVersion(String palettesBasePath) { |
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updateVersion_1_0_to_1_1(palettesBasePath); |
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//updateVersion_1_1_to_1_2(palettesBasePath);
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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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public ColorItem getColorItem(ArrayList<ColorItem> 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.fmap.dal.coverage.datastruct.ColorTableLibrary#loadPalette(java.lang.String, java.lang.String, java.util.ArrayList)
|
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*/
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public String loadPalette(String palettesBasePath, String paletteFileName, ArrayList<ColorItem> items) { |
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updateVersion(palettesBasePath); |
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items.clear(); |
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File palettesFile = new File(palettesBasePath + File.separator + paletteFileName); |
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if (!palettesFile.exists())
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return null; |
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|
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try {
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String paletteName = ""; |
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ArrayList<ColorItem> rows = new ArrayList<ColorItem>(); |
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KXmlParser parser = new KXmlParser();
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FileInputStream in = new FileInputStream(palettesBasePath + File.separator + paletteFileName); |
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InputStreamReader reader = new InputStreamReader(in, "UTF8"); |
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parser.setInput(reader); |
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int tag = parser.nextTag();
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parser.require(KXmlParser.START_TAG, null, "ColorTable"); |
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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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} |
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} |
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tag = parser.nextTag(); |
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while (!((tag == KXmlParser.END_TAG) && (parser.getName().equals("ColorTable")))) { |
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try {
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if (tag == KXmlParser.START_TAG) {
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if (parser.getName().equals("Color")) { |
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ColorItem colorItem = new ColorItemImpl();
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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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} |
| 446 |
if (parser.getAttributeName(i).equals("name")) { |
| 447 |
colorItem.setNameClass((String) parser.getAttributeValue(i));
|
| 448 |
} |
| 449 |
if (parser.getAttributeName(i).equals("rgb")) { |
| 450 |
String rgb = parser.getAttributeValue(i);
|
| 451 |
int r = Integer.valueOf(rgb.substring(0, rgb.indexOf(","))).intValue(); |
| 452 |
int g = Integer.valueOf(rgb.substring(rgb.indexOf(",") + 1, rgb.lastIndexOf(","))).intValue(); |
| 453 |
int b = Integer.valueOf(rgb.substring(rgb.lastIndexOf(",") + 1, rgb.length())).intValue(); |
| 454 |
|
| 455 |
colorItem.setColor(new Color(r, g, b, a)); |
| 456 |
} |
| 457 |
if (parser.getAttributeName(i).equals("interpolated")) { |
| 458 |
colorItem.setInterpolated(Double.parseDouble((String) parser.getAttributeValue(i))); |
| 459 |
} |
| 460 |
} |
| 461 |
|
| 462 |
rows.add(colorItem); |
| 463 |
continue;
|
| 464 |
} |
| 465 |
if (parser.getName().equals("Alpha")) { |
| 466 |
ColorItem colorItem = new ColorItemImpl();
|
| 467 |
for (int i = 0; i < parser.getAttributeCount(); i++) { |
| 468 |
if (parser.getAttributeName(i).equals("value")) { |
| 469 |
colorItem.setValue(Double.parseDouble((String) parser.getAttributeValue(i))); |
| 470 |
ColorItem aux = getColorItem(rows, Double.parseDouble((String) parser.getAttributeValue(i))); |
| 471 |
if (aux != null) { |
| 472 |
colorItem.setNameClass(aux.getNameClass()); |
| 473 |
colorItem.setInterpolated(aux.getInterpolated()); |
| 474 |
colorItem.setColor(new Color(aux.getColor().getRed(), aux.getColor().getGreen(), aux.getColor().getBlue(), colorItem.getColor().getAlpha())); |
| 475 |
} |
| 476 |
} |
| 477 |
if (parser.getAttributeName(i).equals("alpha")) { |
| 478 |
int a = Integer.parseInt(parser.getAttributeValue(i)); |
| 479 |
|
| 480 |
colorItem.setColor(new Color(colorItem.getColor().getRed(), colorItem.getColor().getGreen(), colorItem.getColor().getBlue(), a)); |
| 481 |
} |
| 482 |
if (parser.getAttributeName(i).equals("interpolated")) { |
| 483 |
colorItem.setInterpolated(Double.parseDouble((String) parser.getAttributeValue(i))); |
| 484 |
} |
| 485 |
} |
| 486 |
|
| 487 |
rows.add(colorItem); |
| 488 |
continue;
|
| 489 |
} |
| 490 |
} |
| 491 |
} finally {
|
| 492 |
tag = parser.nextTag(); |
| 493 |
} |
| 494 |
} |
| 495 |
|
| 496 |
for (int i = 0; i < rows.size(); i++) |
| 497 |
items.add(rows.get(i)); |
| 498 |
|
| 499 |
reader.close(); |
| 500 |
return paletteName;
|
| 501 |
} catch (FileNotFoundException fnfEx) { |
| 502 |
fnfEx.printStackTrace(); |
| 503 |
} catch (XmlPullParserException xmlEx) {
|
| 504 |
System.out.println("El fichero de paletas predeterminadas no tiene la estructura correcta:\n " + xmlEx.getMessage()); |
| 505 |
} catch (IOException e) { |
| 506 |
} |
| 507 |
return null; |
| 508 |
} |
| 509 |
} |