root / tags / v1_0_RELEASE / libraries / libCq CMS for java.old / src / org / cresques / filter / RasterToImageFilter.java @ 9167
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1 | 5978 | nacho | /*
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2 | * Cresques Mapping Suite. Graphic Library for constructing mapping applications.
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3 | *
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4 | * Copyright (C) 2004-5.
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5 | *
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6 | * This program is free software; you can redistribute it and/or
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7 | * modify it under the terms of the GNU General Public License
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8 | * as published by the Free Software Foundation; either version 2
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9 | * of the License, or (at your option) any later version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU General Public License
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17 | * along with this program; if not, write to the Free Software
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18 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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19 | *
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20 | * For more information, contact:
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21 | *
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22 | * cresques@gmail.com
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23 | */
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24 | package org.cresques.filter; |
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25 | |||
26 | import java.awt.image.BufferedImage; |
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27 | |||
28 | |||
29 | /**
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30 | * Renderiza el raster.
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31 | * @author Luis W. Sevilla (sevilla_lui@gva.es)
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32 | */
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33 | public class RasterToImageFilter extends RasterFilter { |
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34 | private BufferedImage image; |
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35 | private int alpha; |
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36 | private int rgb; |
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37 | |||
38 | /**
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39 | * Constructor
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40 | *
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41 | */
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42 | public RasterToImageFilter() {
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43 | } |
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44 | |||
45 | /* (non-Javadoc)
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46 | * @see org.cresques.io.raster.IRasterFilter#pre()
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47 | */
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48 | public void pre() { |
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49 | //Obtenemos par?metros
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50 | this.raster = (RasterBuf) params.get("raster"); |
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51 | this.alpha = ((Integer) params.get("alpha")).intValue(); |
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52 | this.height = raster.getHeight();
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53 | this.width = raster.getWidth();
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54 | this.alpha = (alpha & 0xff) << 24; |
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55 | image = new BufferedImage(raster.getWidth(), raster.getHeight(), |
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56 | BufferedImage.TYPE_INT_ARGB);
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57 | } |
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58 | |||
59 | /* (non-Javadoc)
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60 | * @see org.cresques.px.PxRaster.RasterFilter#process(int, int)
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61 | */
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62 | public void process(int x, int y) { |
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63 | raster.getElemInt(x, y, px); |
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64 | rgb = (alpha & ((px[3] & 0xff) << 24)) | ((px[0] & 0xff) << 16) | |
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65 | ((px[1] & 0xff) << 8) | (px[2] & 0xff); |
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66 | |||
67 | image.setRGB(x, y, rgb); |
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68 | } |
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69 | |||
70 | /* (non-Javadoc)
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71 | * @see org.cresques.io.raster.IRasterFilter#getResult(java.lang.String)
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72 | */
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73 | public Object getResult(String name) { |
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74 | if (name.equals("raster")) { |
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75 | return (Object) image; |
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76 | } else {
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77 | return null; |
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78 | } |
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79 | } |
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80 | |||
81 | /* (non-Javadoc)
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82 | * @see org.cresques.px.PxRaster.RasterFilter#processLines(int)
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83 | */
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84 | public void processLine(int y) { |
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85 | for (int x = 0; x < width; x++) { |
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86 | int[][] line = raster.getLineInt(y); |
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87 | rgb = (alpha & ((px[3] & 0xff) << 24)) | |
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88 | ((line[x][0] & 0xff) << 16) | ((line[x][1] & 0xff) << 8) | |
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89 | (line[x][2] & 0xff); |
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90 | |||
91 | image.setRGB(x, y, rgb); |
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92 | } |
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93 | } |
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94 | |||
95 | /* (non-Javadoc)
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96 | * @see org.cresques.io.raster.IRasterFilter#getInRasterDataType()
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97 | */
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98 | public int getInRasterDataType() { |
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99 | return raster.getDataType();
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100 | } |
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101 | |||
102 | /* (non-Javadoc)
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103 | * @see org.cresques.io.raster.IRasterFilter#getOutRasterDataType()
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104 | */
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105 | public int getOutRasterDataType() { |
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106 | return RasterBuf.TYPE_IMAGE;
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107 | } |
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108 | |||
109 | /* (non-Javadoc)
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110 | * @see org.cresques.io.raster.IRasterFilter#post()
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111 | */
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112 | public void post() { |
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113 | } |
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114 | } |