gvsig-raster / org.gvsig.raster / branches / org.gvsig.raster_dataaccess_refactoring / org.gvsig.raster.lib / org.gvsig.raster.lib.impl / src / main / java / org / gvsig / raster / impl / store / properties / DataStoreColorInterpretation.java @ 2310
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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.store.properties; |
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import java.util.ArrayList; |
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import java.util.List; |
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import org.gvsig.fmap.dal.coverage.store.props.ColorInterpretation; |
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/**
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* Clase que contiene la interpretaci?n de color por banda. Inicialmente
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* es inicializada con los valores contenidos en el raster si los tiene. Despu?s
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* estos valores pueden ser modificados.
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*
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* @author Nacho Brodin (nachobrodin@gmail.com)
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*/
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public class DataStoreColorInterpretation implements ColorInterpretation { |
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/**
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* Interpretaci?n de color para cada banda
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*/
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private String[] colorInterpretation = null; |
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/**
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* true si la imagen tiene una banda con el identificador de interpretaci?n de
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* color a Alpha
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*/
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/**
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* Constructor vacio.
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*/
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public DataStoreColorInterpretation() {
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this.colorInterpretation = new String[0]; |
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} |
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/**
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* Creates an object of this class from a bands renderer array.
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*/
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public DataStoreColorInterpretation(int[] renderBands) { |
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if(renderBands == null || renderBands.length == 0) { |
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this.colorInterpretation = new String[0]; |
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return;
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} |
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this.colorInterpretation = new String[renderBands.length]; |
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for (int i = 0; i < renderBands.length; i++) { |
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switch (renderBands[i]) {
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case 0: |
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colorInterpretation[i] = RED_BAND; |
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break;
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case 1: |
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colorInterpretation[i] = GREEN_BAND; |
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break;
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case 2: |
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colorInterpretation[i] = BLUE_BAND; |
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break;
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case 3: |
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colorInterpretation[i] = ALPHA_BAND; |
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break;
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} |
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} |
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for (int i = 0; i < colorInterpretation.length; i++) { |
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if(colorInterpretation[i] == null) |
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colorInterpretation[i] = UNDEF_BAND; |
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} |
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} |
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/**
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* Constructor que asigna los valores de interpretaci?n de color
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*/
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public DataStoreColorInterpretation(String[] colorInterp) { |
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this.colorInterpretation = colorInterp;
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} |
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public static DataStoreColorInterpretation createDefaultInterpretation(int nBands) { |
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if(nBands <= 0) |
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return null; |
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if(nBands == 1) |
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return new DataStoreColorInterpretation(new String[]{GRAY_BAND}); |
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if(nBands == 2) |
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return new DataStoreColorInterpretation(new String[]{GRAY_BAND, ALPHA_BAND}); |
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if(nBands == 3) |
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return new DataStoreColorInterpretation(new String[]{RED_BAND, GREEN_BAND, BLUE_BAND}); |
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return new DataStoreColorInterpretation(new String[]{RED_BAND, GREEN_BAND, BLUE_BAND, ALPHA_BAND}); |
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} |
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public static DataStoreColorInterpretation createPaletteInterpretation() { |
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return new DataStoreColorInterpretation(new String[]{PAL_BAND}); |
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} |
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/**
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* Obtiene una interpretaci?n de color GRAY
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* @return DatasetColorInterpretation
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*/
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public static DataStoreColorInterpretation createGrayInterpretation() { |
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return new DataStoreColorInterpretation(new String[]{GRAY_BAND}); |
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} |
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/**
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* Obtiene una interpretaci?n de color RGB
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* @return DatasetColorInterpretation
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*/
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public static DataStoreColorInterpretation createARGBInterpretation() { |
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return new DataStoreColorInterpretation(new String[]{RED_BAND, GREEN_BAND, BLUE_BAND, ALPHA_BAND}); |
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} |
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/**
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* Obtiene una interpretaci?n de color RGB
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* @return DatasetColorInterpretation
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*/
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public static DataStoreColorInterpretation createRGBInterpretation() { |
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return new DataStoreColorInterpretation(new String[]{RED_BAND, GREEN_BAND, BLUE_BAND}); |
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} |
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/**
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* Constructor que inicializa el n?mero de valores de la interpretaci?n de
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* color. Implica asignar posteriormente los valores a las bandas.
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*/
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public DataStoreColorInterpretation(int values) { |
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colorInterpretation = new String[values]; |
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} |
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/**
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* Inicializa el vector de cadenas que contendr?n el nombre de la interpretaci?n
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* de color asignada a cada banda. Este valor es el devuelto por la imagen.
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* @param values N?mero de valores
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*/
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public void initColorInterpretation(int values) { |
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colorInterpretation = new String[values]; |
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} |
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public boolean isBGR() { |
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if(colorInterpretation != null) { |
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if (colorInterpretation.length == 3 && |
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colorInterpretation[0] == BLUE_BAND &&
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colorInterpretation[1] == GREEN_BAND &&
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colorInterpretation[2] == RED_BAND)
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return true; |
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} |
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return false; |
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} |
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public boolean isRGB() { |
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if(colorInterpretation != null) { |
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if (colorInterpretation.length == 3 && |
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isColorInterpretation(0) &&
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isColorInterpretation(1) &&
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isColorInterpretation(2))
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return true; |
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} |
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return false; |
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} |
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public boolean isARGB() { |
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if(colorInterpretation != null) { |
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if (colorInterpretation.length == 4 && |
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isInterpretationDefinedAsColor(0) &&
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isInterpretationDefinedAsColor(1) &&
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isInterpretationDefinedAsColor(2) &&
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isAlphaInterpretation(3))
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return true; |
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} |
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return false; |
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} |
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public boolean isPalette() { |
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if(colorInterpretation != null && |
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colorInterpretation[0].length() >= 1 && |
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colorInterpretation[0].equals(PAL_BAND))
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return true; |
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return false; |
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} |
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private boolean isInterpretationDefinedAsColor(int band) { |
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return isColorInterpretation(band) || isGrayInterpretation(band);
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} |
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public boolean isGrayInterpretation(int band) { |
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return colorInterpretation[band].equals(GRAY_BAND);
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} |
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public boolean isColorInterpretation(int band) { |
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return colorInterpretation[band].equals(RED_BAND) || colorInterpretation[band].equals(GREEN_BAND) || colorInterpretation[band].equals(BLUE_BAND);
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} |
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public boolean isAlphaInterpretation(int band) { |
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return colorInterpretation[band].equals(ALPHA_BAND);
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} |
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public int getAlphaBand() { |
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String[] values = getValues(); |
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for (int i = 0; i < values.length; i++) { |
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if(values[i] != null && values[i].equals(ALPHA_BAND)) |
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return i;
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} |
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return -1; |
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} |
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public String[] getValues() { |
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return colorInterpretation;
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} |
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/**
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* Asigna los valores de la interpretaci?n de color
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* @return String[]
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*/
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public void setValues(String[] colorInterp) { |
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colorInterpretation = colorInterp; |
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} |
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public void setColorInterpValue(int band, String value) { |
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try{
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//Si ya existia el valor se elimina
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for (int i = 0; i < colorInterpretation.length; i++) { |
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if(colorInterpretation[i] != null && colorInterpretation[i].equals(value)) |
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colorInterpretation[i] = UNDEF_BAND; |
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} |
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//Se asigna el valor en su entrada. Si excede la longitud se construye uno nuevo m?s largo
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//que en las celdas existentes es copia del anterior
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if(band >= 0 && band < colorInterpretation.length) |
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colorInterpretation[band] = value; |
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else if(band >= colorInterpretation.length) { |
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ColorInterpretation copyCI = new DataStoreColorInterpretation(band + 1); |
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for (int i = 0; i < colorInterpretation.length; i++) { |
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copyCI.setColorInterpValue(i, colorInterpretation[i]); |
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} |
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colorInterpretation = copyCI.getValues(); |
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} |
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}catch(ArrayIndexOutOfBoundsException ex) { |
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//No asignamos el elemento
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} |
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} |
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public int getBand(String id) { |
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if(colorInterpretation != null) { |
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for(int i = 0; i < colorInterpretation.length; i++) |
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if(colorInterpretation[i] != null && colorInterpretation[i].equals(id)) |
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return i;
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} |
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return -1; |
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} |
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/**
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* Obtiene la posici?n de las bandas que contienen el identificador pasado por par?metro
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* o null si no tiene dicho identificador.
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* @return Lista con las posiciones de las bandas que contienen el identificador o null si no lo tiene.
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*/
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public int[] getBands(String id) { |
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if(colorInterpretation != null){ |
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List<Integer> array = new ArrayList<Integer>(); |
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for(int i = 0; i < colorInterpretation.length; i++) |
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if(colorInterpretation[i].equals(id))
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array.add(new Integer(i)); |
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int[] list = new int[array.size()]; |
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for (int i = 0; i < list.length; i++) |
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list[i] = ((Integer)array.get(i)).intValue();
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return list;
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} |
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return null; |
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} |
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public boolean hasAlphaBand() { |
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String[] values = getValues(); |
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for (int i = 0; i < values.length; i++) { |
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if(values[i] != null && values[i].equals("Alpha")) |
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return true; |
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} |
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return false; |
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} |
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public int length() { |
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return colorInterpretation.length;
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} |
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public String get(int i) { |
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if (i >= colorInterpretation.length)
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return null; |
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return colorInterpretation[i];
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} |
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public void addColorInterpretation(ColorInterpretation ci) { |
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String[] newCI = new String[colorInterpretation.length + ci.length()]; |
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for (int i = 0; i < colorInterpretation.length; i++) |
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newCI[i] = colorInterpretation[i]; |
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for (int i = 0; i < ci.length(); i++) { |
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newCI[colorInterpretation.length + i] = ci.get(i); |
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} |
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this.colorInterpretation = newCI;
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} |
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public boolean isUndefined() { |
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for (int i = 0; i < colorInterpretation.length; i++) { |
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if (colorInterpretation[i] != null) { |
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if (!colorInterpretation[i].equals(UNDEF_BAND) &&
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!colorInterpretation[i].equals(ALPHA_BAND)) |
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return false; |
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} |
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} |
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return true; |
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} |
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public int[] getRenderBandsFromColorInterpretation() { |
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if(colorInterpretation == null) |
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return null; |
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int[] renderBands = new int[]{-1, -1, -1, -1}; |
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for (int i = 0; i < colorInterpretation.length; i++) { |
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if(colorInterpretation[i].equals(RED_BAND))
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renderBands[0] = i;
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if(colorInterpretation[i].equals(GREEN_BAND))
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renderBands[1] = i;
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if(colorInterpretation[i].equals(BLUE_BAND))
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renderBands[2] = i;
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if(colorInterpretation[i].equals(GRAY_BAND))
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renderBands[0] = renderBands[1] = renderBands[2] = i; |
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} |
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//Ojo! esto no puede hacerse en el bucle anterior pq no detectaria bien casos
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//como ALPHA_BAND, GRAY_BAND
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for (int i = 0; i < colorInterpretation.length; i++) { |
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if(colorInterpretation[i].equals(ALPHA_BAND))
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renderBands[3] = i;
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} |
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return renderBands;
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} |
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public ColorInterpretation cloneColorInterpretation() {
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DataStoreColorInterpretation ci = new DataStoreColorInterpretation();
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String[] l = new String[colorInterpretation.length]; |
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for (int i = 0; i < l.length; i++) { |
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l[i] = colorInterpretation[i]; |
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} |
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ci.colorInterpretation = l; |
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return ci;
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} |
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} |