root / trunk / libraries / libCq_CMS_praster / src / org / cresques / filter / enhancement / TransparencyImageFilter.java @ 8026
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/*
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* Cresques Mapping Suite. Graphic Library for constructing mapping applications.
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*
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* Copyright (C) 2004-5.
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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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* For more information, contact:
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*
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* cresques@gmail.com
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*/
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package org.cresques.filter.enhancement; |
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import java.awt.Image; |
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import java.awt.image.BufferedImage; |
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import org.cresques.io.data.RasterBuf; |
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/**
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* Filtro de transparencia aplicada a un rango de valores de un pixel sobre un objeto image
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* @author Nacho Brodin (brodin_ign@gva.es)
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*
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*/
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public class TransparencyImageFilter extends TransparencyFilter { |
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/**
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* Constructor
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*
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*/
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public TransparencyImageFilter() {
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super();
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} |
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/* (non-Javadoc)
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* @see org.cresques.io.raster.IRasterFilter#pre()
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*/
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public void pre() { |
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//Obtenci?n de par?metros
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this.image = (Image) params.get("raster"); |
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height = image.getHeight(null);
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width = image.getWidth(null);
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super.pre();
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} |
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/**
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* Asigna al pixel pasado como par?metro como transparente con
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* el color de transparencia que est? seleccionado
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* @param px Pixel a asignarle transparencia
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*/
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private void setPixelTransparent(int[] px){ |
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px[0] = this.alpha; |
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px[1] = this.transparencyColorRed; |
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px[2] = this.transparencyColorGreen; |
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px[3] = this.transparencyColorBlue; |
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} |
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/**
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* @param range rango
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* @param banda banda
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* @param px pixel
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*/
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private void processRange(int[] px) { |
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for (int i = 0; i < rangesList.size(); i++) { |
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TransparencyRange tr = ((TransparencyRange)rangesList.get(i)); |
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if(tr.isAnd()){
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if(tr.getRed() != null) |
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if (px[1] < tr.getRed()[0] || px[1] > tr.getRed()[1]) |
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continue;
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if(tr.getGreen() != null) |
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if (px[2] < tr.getGreen()[0] || px[2] > tr.getGreen()[1]) |
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continue;
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if(tr.getBlue() != null) |
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if (px[3] < tr.getBlue()[0] || px[3] > tr.getBlue()[1]) |
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continue;
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if(tr.getRed() != null || tr.getGreen() != null || tr.getBlue() != null) |
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setPixelTransparent(px); |
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}else{
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if(tr.getRed() != null){ |
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if (px[1] >= tr.getRed()[0] && px[1] <= tr.getRed()[1]){ |
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setPixelTransparent(px); |
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continue;
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} |
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} |
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if(tr.getGreen() != null){ |
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if (px[2] >= tr.getGreen()[0] && px[2] <= tr.getGreen()[1]){ |
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setPixelTransparent(px); |
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continue;
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} |
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} |
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if(tr.getBlue() != null){ |
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if (px[3] >= tr.getBlue()[0] && px[3] <= tr.getBlue()[1]){ |
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setPixelTransparent(px); |
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continue;
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} |
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} |
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} |
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} |
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} |
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/* (non-Javadoc)
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* @see org.cresques.io.raster.IRasterFilter#process(int, int)
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*/
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public void process(int col, int line) { |
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int pt = ((BufferedImage) image).getRGB(col, line); |
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int[] px4 = { |
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(pt & 0xff000000) >> 24, (pt & 0xff0000) >> 16, |
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(pt & 0x00ff00) >> 8, (pt & 0x0000ff) |
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}; |
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processRange(px4); |
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((BufferedImage) image).setRGB(col, line,
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(((px4[0] << 24) & 0xff000000) | |
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((px4[1] << 16) & 0x00ff0000) | |
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((px4[2] << 8) & 0x0000ff00) | |
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(px4[3] & 0x0000ff))); |
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} |
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/* (non-Javadoc)
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* @see org.cresques.io.raster.IRasterFilter#processSuperSampling(int, int)
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*/
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public void processSuperSampling(int col, int line) { |
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int pt = ((BufferedImage) image).getRGB(col, line); |
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int[] px4 = { |
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(pt & 0xff000000) >> 24, (pt & 0xff0000) >> 16, |
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(pt & 0x00ff00) >> 8, (pt & 0x0000ff) |
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}; |
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processRange(px4); |
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for(int j = col; j < image.getWidth(null) && j < (col + stepX[contX + 1]); j++) |
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for(int i = line; i < image.getHeight(null) && i < (line + stepY[contY + 1]); i++) |
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((BufferedImage) image).setRGB(j, i, (((px4[0] << 24) & 0xff000000) | |
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((px4[1] << 16) & 0x00ff0000) | |
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((px4[2] << 8) & 0x0000ff00) | |
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(px4[3] & 0x0000ff))); |
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} |
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/* (non-Javadoc)
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* @see org.cresques.io.raster.IRasterFilter#getInRasterDataType()
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*/
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public int getInRasterDataType() { |
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return RasterBuf.TYPE_IMAGE;
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} |
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/* (non-Javadoc)
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* @see org.cresques.io.raster.IRasterFilter#getOutRasterDataType()
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*/
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public int getOutRasterDataType() { |
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return RasterBuf.TYPE_IMAGE;
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} |
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/* (non-Javadoc)
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* @see org.cresques.io.raster.IRasterFilter#getResult(java.lang.String)
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*/
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public Object getResult(String name) { |
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if (name.equals("raster")) { |
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return (Object) this.image; |
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} else {
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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.cresques.io.raster.RasterFilter#processLine(int)
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*/
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public void processLine(int y) { |
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} |
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/* (non-Javadoc)
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* @see org.cresques.io.raster.IRasterFilter#post()
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*/
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public void post() { |
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} |
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} |