Mercurial > hg > digilib-old
annotate servlet/src/digilib/io/ImageFile.java @ 596:2b58d2783ef0 stream
small cleanup
| author | robcast |
|---|---|
| date | Sun, 09 Jan 2011 21:51:07 +0100 |
| parents | 69bc69381ac4 |
| children | f210731dc6cc |
| rev | line source |
|---|---|
| 159 | 1 /* ImageFile.java -- digilib image file class. |
| 2 | |
| 3 Digital Image Library servlet components | |
| 4 | |
| 5 Copyright (C) 2003 Robert Casties (robcast@mail.berlios.de) | |
| 6 | |
| 7 This program is free software; you can redistribute it and/or modify it | |
| 8 under the terms of the GNU General Public License as published by the | |
| 9 Free Software Foundation; either version 2 of the License, or (at your | |
| 10 option) any later version. | |
| 11 | |
| 12 Please read license.txt for the full details. A copy of the GPL | |
| 13 may be found at http://www.gnu.org/copyleft/lgpl.html | |
| 14 | |
| 15 You should have received a copy of the GNU General Public License | |
| 16 along with this program; if not, write to the Free Software | |
| 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 18 | |
| 19 * Created on 25.02.2003 | |
| 20 */ | |
| 21 | |
| 22 package digilib.io; | |
| 23 | |
| 24 import java.io.File; | |
| 585 | 25 import java.io.IOException; |
| 590 | 26 import java.io.RandomAccessFile; |
| 27 | |
| 28 import javax.imageio.stream.FileImageInputStream; | |
| 29 import javax.imageio.stream.ImageInputStream; | |
| 159 | 30 |
| 585 | 31 import digilib.servlet.DigilibConfiguration; |
| 596 | 32 import digilib.util.ImageSize; |
| 159 | 33 |
| 34 /** | |
| 35 * @author casties | |
| 36 */ | |
| 568 | 37 public class ImageFile extends ImageInput { |
| 159 | 38 |
| 583 | 39 // file |
| 40 private File file = null; | |
| 159 | 41 // file name |
| 583 | 42 private String name = null; |
| 159 | 43 // parent directory |
| 44 private Directory dir = null; | |
| 45 | |
| 583 | 46 /** Constructor with File. |
| 47 * | |
| 48 * @param f | |
| 49 * @param parent | |
| 50 * @param dir | |
| 51 */ | |
| 52 public ImageFile(File f, ImageSet parent, Directory dir) { | |
| 53 this.file = f; | |
| 54 this.name = f.getName(); | |
| 159 | 55 this.parent = parent; |
| 56 this.dir = dir; | |
| 57 } | |
| 58 | |
| 583 | 59 /** Constructor with filename (without path). |
| 60 * @param fn | |
| 61 * @param parent | |
| 62 * @param dir | |
| 63 */ | |
| 64 public ImageFile(String fn, ImageSet parent, Directory dir) { | |
| 65 this.name = fn; | |
| 66 this.dir = dir; | |
| 67 this.file = new File(this.dir.getDir(), fn); | |
| 68 this.parent = parent; | |
| 159 | 69 } |
| 70 | |
| 585 | 71 |
| 72 /** Checks the image and sets size and type. | |
| 73 * | |
| 74 */ | |
| 75 public void check() { | |
| 76 if (pixelSize == null) { | |
| 77 try { | |
| 78 // use the configured toolkit to identify the image | |
| 79 DigilibConfiguration.identifyDocuImage(this); | |
| 80 } catch (IOException e) { | |
| 81 // nothing much to do... | |
| 82 } | |
| 83 } | |
| 84 } | |
| 85 | |
| 86 /* (non-Javadoc) | |
| 87 * @see digilib.io.ImageInput#getSize() | |
| 88 */ | |
| 89 @Override | |
| 90 public ImageSize getSize() { | |
| 91 check(); | |
| 92 return pixelSize; | |
| 93 } | |
| 94 | |
| 95 /* (non-Javadoc) | |
| 96 * @see digilib.io.ImageInput#getMimetype() | |
| 97 */ | |
| 98 @Override | |
| 99 public String getMimetype() { | |
| 100 check(); | |
| 101 return mimetype; | |
| 102 } | |
| 103 | |
| 104 /* (non-Javadoc) | |
| 105 * @see digilib.io.ImageInput#getAspect() | |
| 106 */ | |
| 107 @Override | |
| 108 public float getAspect() { | |
| 109 check(); | |
| 110 return (pixelSize != null) ? pixelSize.getAspect() : 0f; | |
| 111 } | |
| 112 | |
| 113 /** Returns the file name (without path). | |
| 159 | 114 * |
| 115 * @return | |
| 116 */ | |
| 117 public String getName() { | |
| 583 | 118 return name; |
| 159 | 119 } |
| 120 | |
| 590 | 121 |
| 122 /* (non-Javadoc) | |
| 123 * @see digilib.io.ImageInput#hasImageInputStream() | |
| 124 */ | |
| 125 @Override | |
| 126 public boolean hasImageInputStream() { | |
| 127 return true; | |
| 128 } | |
| 129 | |
| 130 /* (non-Javadoc) | |
| 131 * @see digilib.io.ImageInput#getImageInputStream() | |
| 132 */ | |
| 133 @Override | |
| 134 public ImageInputStream getImageInputStream() { | |
| 135 try { | |
| 136 RandomAccessFile rf = new RandomAccessFile(file, "r"); | |
| 137 return new FileImageInputStream(rf); | |
| 138 } catch (IOException e) { | |
| 139 // what now? | |
| 140 } | |
| 141 return null; | |
| 142 } | |
| 143 | |
| 144 /* (non-Javadoc) | |
| 145 * @see digilib.io.ImageInput#hasFile() | |
| 146 */ | |
| 147 @Override | |
| 148 public boolean hasFile() { | |
| 149 return true; | |
| 150 } | |
| 151 | |
| 152 /* (non-Javadoc) | |
| 153 * @see digilib.io.ImageInput#getFile() | |
| 159 | 154 */ |
| 155 public File getFile() { | |
| 583 | 156 return file; |
| 159 | 157 } |
| 158 | |
| 566 | 159 /* (non-Javadoc) |
| 568 | 160 * @see digilib.io.ImageInput#setSize(digilib.image.ImageSize) |
| 159 | 161 */ |
| 568 | 162 public void setSize(ImageSize imageSize) { |
| 163 this.pixelSize = imageSize; | |
| 164 // pass on to parent | |
| 165 if (this.parent != null) { | |
| 166 this.parent.setAspect(imageSize); | |
| 167 } | |
| 566 | 168 } |
| 169 | |
|
576
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try: DocuDirent as interface, ImageFile inherits from ImageInput and implements DocuDirent
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170 /* (non-Javadoc) |
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171 * @see java.lang.Object#toString() |
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try: DocuDirent as interface, ImageFile inherits from ImageInput and implements DocuDirent
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172 */ |
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173 @Override |
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174 public String toString() { |
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175 // try to use File.toString |
| 583 | 176 if (file != null) { |
| 177 return file.toString(); | |
|
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178 } |
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179 return super.toString(); |
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try: DocuDirent as interface, ImageFile inherits from ImageInput and implements DocuDirent
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180 } |
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181 |
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182 |
| 159 | 183 } |