Mercurial > hg > digilib-old
annotate servlet/src/digilib/io/ImageFile.java @ 588:aee436f0549d stream
more work on stream input
| author | robcast |
|---|---|
| date | Thu, 06 Jan 2011 14:37:50 +0100 |
| parents | 95417c4615b8 |
| children | 69bc69381ac4 |
| 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; |
| 159 | 26 |
| 27 import digilib.image.ImageSize; | |
| 585 | 28 import digilib.servlet.DigilibConfiguration; |
| 159 | 29 |
| 30 /** | |
| 31 * @author casties | |
| 32 */ | |
| 568 | 33 public class ImageFile extends ImageInput { |
| 159 | 34 |
| 583 | 35 // file |
| 36 private File file = null; | |
| 159 | 37 // file name |
| 583 | 38 private String name = null; |
| 159 | 39 // parent directory |
| 40 private Directory dir = null; | |
| 41 | |
| 583 | 42 /** Constructor with File. |
| 43 * | |
| 44 * @param f | |
| 45 * @param parent | |
| 46 * @param dir | |
| 47 */ | |
| 48 public ImageFile(File f, ImageSet parent, Directory dir) { | |
| 49 this.file = f; | |
| 50 this.name = f.getName(); | |
| 159 | 51 this.parent = parent; |
| 52 this.dir = dir; | |
| 53 } | |
| 54 | |
| 583 | 55 /** Constructor with filename (without path). |
| 56 * @param fn | |
| 57 * @param parent | |
| 58 * @param dir | |
| 59 */ | |
| 60 public ImageFile(String fn, ImageSet parent, Directory dir) { | |
| 61 this.name = fn; | |
| 62 this.dir = dir; | |
| 63 this.file = new File(this.dir.getDir(), fn); | |
| 64 this.parent = parent; | |
| 159 | 65 } |
| 66 | |
| 585 | 67 |
| 68 /** Checks the image and sets size and type. | |
| 69 * | |
| 70 */ | |
| 71 public void check() { | |
| 72 if (pixelSize == null) { | |
| 73 try { | |
| 74 // use the configured toolkit to identify the image | |
| 75 DigilibConfiguration.identifyDocuImage(this); | |
| 76 } catch (IOException e) { | |
| 77 // nothing much to do... | |
| 78 } | |
| 79 } | |
| 80 } | |
| 81 | |
| 82 /* (non-Javadoc) | |
| 83 * @see digilib.io.ImageInput#getSize() | |
| 84 */ | |
| 85 @Override | |
| 86 public ImageSize getSize() { | |
| 87 check(); | |
| 88 return pixelSize; | |
| 89 } | |
| 90 | |
| 91 /* (non-Javadoc) | |
| 92 * @see digilib.io.ImageInput#getMimetype() | |
| 93 */ | |
| 94 @Override | |
| 95 public String getMimetype() { | |
| 96 check(); | |
| 97 return mimetype; | |
| 98 } | |
| 99 | |
| 100 /* (non-Javadoc) | |
| 101 * @see digilib.io.ImageInput#getAspect() | |
| 102 */ | |
| 103 @Override | |
| 104 public float getAspect() { | |
| 105 check(); | |
| 106 return (pixelSize != null) ? pixelSize.getAspect() : 0f; | |
| 107 } | |
| 108 | |
| 109 /** Returns the file name (without path). | |
| 159 | 110 * |
| 111 * @return | |
| 112 */ | |
| 113 public String getName() { | |
| 583 | 114 return name; |
| 159 | 115 } |
| 116 | |
| 117 /** | |
| 118 * @return File | |
| 119 */ | |
| 120 public File getFile() { | |
| 583 | 121 return file; |
| 159 | 122 } |
| 123 | |
| 566 | 124 /* (non-Javadoc) |
| 568 | 125 * @see digilib.io.ImageInput#setSize(digilib.image.ImageSize) |
| 159 | 126 */ |
| 568 | 127 public void setSize(ImageSize imageSize) { |
| 128 this.pixelSize = imageSize; | |
| 129 // pass on to parent | |
| 130 if (this.parent != null) { | |
| 131 this.parent.setAspect(imageSize); | |
| 132 } | |
| 566 | 133 } |
| 134 | |
|
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135 /* (non-Javadoc) |
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136 * @see java.lang.Object#toString() |
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137 */ |
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138 @Override |
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139 public String toString() { |
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140 // try to use File.toString |
| 583 | 141 if (file != null) { |
| 142 return file.toString(); | |
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143 } |
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144 return super.toString(); |
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145 } |
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146 |
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147 |
| 159 | 148 } |