//
// EPSWriter.java
//
/*
LOCI Bio-Formats package for reading and converting biological file formats.
Copyright (C) 2005-@year@ Melissa Linkert, Curtis Rueden, Chris Allan,
Eric Kjellman and Brian Loranger.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Library General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package loci.formats.out;
import java.awt.Image;
import java.awt.image.*;
import java.io.*;
import loci.formats.*;
/**
* EPSWriter is the file format writer for Encapsulated PostScript (EPS) files.
*
* <dl><dt><b>Source code:</b></dt>
* <dd><a href="https://skyking.microscopy.wisc.edu/trac/java/browser/trunk/loci/formats/out/EPSWriter.java">Trac</a>,
* <a href="https://skyking.microscopy.wisc.edu/svn/java/trunk/loci/formats/out/EPSWriter.java">SVN</a></dd></dl>
*
* @author Melissa Linkert linkert at wisc.edu
*/
public class EPSWriter extends FormatWriter {
/** Current file. */
protected RandomAccessFile out;
// -- Constructor --
public EPSWriter() {
super("Encapsulated PostScript", new String[] {"eps", "epsi"});
}
// -- IFormatWriter API methods --
/* @see loci.formats.IFormatWriter#saveImage(Image, boolean) */
public void saveImage(Image image, boolean last)
throws FormatException, IOException
{
if (image == null) {
throw new FormatException("Image is null");
}
out = new RandomAccessFile(currentId, "rw");
BufferedImage img = (cm == null) ?
ImageTools.makeBuffered(image) : ImageTools.makeBuffered(image, cm);
// get the width and height of the image
int width = img.getWidth();
int height = img.getHeight();
// retrieve pixel data for this plane
byte[][] byteData = ImageTools.getBytes(img);
// write the header
DataTools.writeString(out, "%!PS-Adobe-2.0 EPSF-1.2\n");
DataTools.writeString(out, "%%Title: " + currentId + "\n");
DataTools.writeString(out, "%%Creator: LOCI Bio-Formats\n");
DataTools.writeString(out, "%%Pages: 1\n");
DataTools.writeString(out, "%%BoundingBox: 0 0 " + width +
" " + height + "\n");
DataTools.writeString(out, "%%EndComments\n\n");
DataTools.writeString(out, "/ld {load def} bind def\n");
DataTools.writeString(out, "/s /stroke ld /f /fill ld /m /moveto ld /l " +
"/lineto ld /c /curveto ld /rgb {255 div 3 1 roll 255 div 3 1 " +
"roll 255 div 3 1 roll setrgbcolor} def\n");
DataTools.writeString(out, "0 0 translate\n");
DataTools.writeString(out, ((float) width) + " " + ((float) height) +
" scale\n");
DataTools.writeString(out, "/picstr 40 string def\n");
if (byteData.length == 1) {
DataTools.writeString(out, width + " " + height + " 8 [" + width +
" 0 0 " + (-1*height) + " 0 " + height + "] {currentfile picstr " +
"readhexstring pop} image\n");
// write pixel data
// for simplicity, write 80 char lines
int charCount = 0;
for (int i=0; i<byteData[0].length; i++) {
for (int j=0; j<1; j++) {
String s = Integer.toHexString(byteData[j][i]);
// only want last 2 characters of s
if (s.length() > 1) s = s.substring(s.length() - 2);
else s = "0" + s;
DataTools.writeString(out, s);
charCount++;
if (charCount == 40) {
DataTools.writeString(out, "\n");
charCount = 0;
}
}
}
}
else {
DataTools.writeString(out, width + " " + height + " 8 [" + width +
" 0 0 " + (-1*height) + " 0 " + height + "] {currentfile picstr " +
"readhexstring pop} false 3 colorimage\n");
// write pixel data
// for simplicity, write 80 char lines
int charCount = 0;
for (int i=0; i<byteData[0].length; i++) {
for (int j=0; j<byteData.length; j++) {
String s = Integer.toHexString(byteData[j][i]);
// only want last 2 characters of s
if (s.length() > 1) s = s.substring(s.length() - 2);
else s = "0" + s;
DataTools.writeString(out, s);
charCount++;
if (charCount == 40) {
DataTools.writeString(out, "\n");
charCount = 0;
}
}
}
}
// write footer
DataTools.writeString(out, "showpage\n");
out.close();
}
/* @see loci.formats.IFormatWriter#getPixelTypes() */
public int[] getPixelTypes() {
return new int[] {FormatTools.UINT8};
}
// -- IFormatHandler API methods --
/* @see loci.formats.IFormatHandler#close() */
public void close() throws IOException {
if (out != null) out.close();
out = null;
currentId = null;
initialized = false;
}
}