diff options
Diffstat (limited to 'src/main/java/org/pdfbox/io/ASCII85OutputStream.java')
| -rw-r--r-- | src/main/java/org/pdfbox/io/ASCII85OutputStream.java | 304 |
1 files changed, 0 insertions, 304 deletions
diff --git a/src/main/java/org/pdfbox/io/ASCII85OutputStream.java b/src/main/java/org/pdfbox/io/ASCII85OutputStream.java deleted file mode 100644 index a59f2df..0000000 --- a/src/main/java/org/pdfbox/io/ASCII85OutputStream.java +++ /dev/null @@ -1,304 +0,0 @@ -/**
- * Copyright (c) 2003, www.pdfbox.org
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 3. Neither the name of pdfbox; nor the names of its
- * contributors may be used to endorse or promote products derived from this
- * software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * http://www.pdfbox.org
- *
- */
-package org.pdfbox.io;
-
-import java.io.FilterOutputStream;
-import java.io.IOException;
-import java.io.OutputStream;
-
-/**
- * This class represents an ASCII85 output stream.
- *
- * @author Ben Litchfield (ben@csh.rit.edu)
- * @version $Revision: 1.6 $
- */
-public class ASCII85OutputStream extends FilterOutputStream
-{
-
- private int lineBreak;
- private int count;
-
- private byte[] indata;
- private byte[] outdata;
-
- /**
- * Function produces five ASCII printing characters from
- * four bytes of binary data.
- */
- private int maxline;
- private boolean flushed;
- private char terminator;
-
- /**
- * Constructor.
- *
- * @param out The output stream to write to.
- */
- public ASCII85OutputStream( OutputStream out )
- {
- super( out );
- lineBreak = 36*2;
- maxline = 36*2;
- count=0;
- indata=new byte[4];
- outdata=new byte[5];
- flushed=true;
- terminator='~';
- }
-
- /**
- * This will set the terminating character.
- *
- * @param term The terminating character.
- */
- public void setTerminator(char term)
- {
- if(term<118 || term>126 || term=='z')
- {
- throw new IllegalArgumentException("Terminator must be 118-126 excluding z");
- }
- terminator=term;
- }
-
- /**
- * This will get the terminating character.
- *
- * @return The terminating character.
- */
- public char getTerminator()
- {
- return terminator;
- }
-
- /**
- * This will set the line length that will be used.
- *
- * @param l The length of the line to use.
- */
- public void setLineLength(int l)
- {
- if( lineBreak > l )
- {
- lineBreak = l;
- }
- maxline=l;
- }
-
- /**
- * This will get the length of the line.
- *
- * @return The line length attribute.
- */
- public int getLineLength()
- {
- return maxline;
- }
-
- /**
- * This will transform the next four ascii bytes.
- */
- private final void transformASCII85()
- {
- long word;
- word=( (((indata[0] << 8) | (indata[1] &0xFF)) << 16) |
- ( (indata[2] & 0xFF) << 8) | (indata[3] & 0xFF)
- ) & 0xFFFFFFFFL;
- // System.out.println("word=0x"+Long.toString(word,16)+" "+word);
-
- if (word == 0 )
- {
- outdata[0]=(byte)'z';
- outdata[1]=0;
- return;
- }
- long x;
- x=word/(85L*85L*85L*85L);
- // System.out.println("x0="+x);
- outdata[0]=(byte)(x+'!');
- word-=x*85L*85L*85L*85L;
-
- x=word/(85L*85L*85L);
- // System.out.println("x1="+x);
- outdata[1]=(byte)(x+'!');
- word-=x*85L*85L*85L;
-
- x=word/(85L*85L);
- // System.out.println("x2="+x);
- outdata[2]=(byte)(x+'!');
- word-=x*85L*85L;
-
- x=word/85L;
- // System.out.println("x3="+x);
- outdata[3]=(byte)(x+'!');
-
- // word-=x*85L;
-
- // System.out.println("x4="+(word % 85L));
- outdata[4]=(byte)((word%85L)+'!');
- }
-
- /**
- * This will write a single byte.
- *
- * @param b The byte to write.
- *
- * @throws IOException If there is an error writing to the stream.
- */
- public final void write(int b) throws IOException
- {
- flushed=false;
- indata[count++]=(byte)b;
- if(count < 4 )
- {
- return;
- }
- transformASCII85();
- for(int i=0;i<5;i++)
- {
- if(outdata[i]==0)
- {
- break;
- }
- out.write(outdata[i]);
- if(--lineBreak==0)
- {
- out.write('\n');
- lineBreak=maxline;
- }
- }
- count = 0;
- }
-
- /**
- * This will write a chunk of data to the stream.
- *
- * @param b The byte buffer to read from.
- * @param off The offset into the buffer.
- * @param sz The number of bytes to read from the buffer.
- *
- * @throws IOException If there is an error writing to the underlying stream.
- */
- public final void write(byte[] b,int off, int sz) throws IOException
- {
- for(int i=0;i<sz;i++)
- {
- if(count < 3)
- {
- indata[count++]=b[off+i];
- }
- else
- {
- write(b[off+i]);
- }
- }
- }
-
- /**
- * This will flush the data to the stream.
- *
- * @throws IOException If there is an error writing the data to the stream.
- */
- public final void flush() throws IOException
- {
- if(flushed)
- {
- return;
- }
- if(count > 0 )
- {
- for( int i=count; i<4; i++ )
- {
- indata[i]=0;
- }
- transformASCII85();
- if(outdata[0]=='z')
- {
- for(int i=0;i<5;i++) // expand 'z',
- {
- outdata[i]=(byte)'!';
- }
- }
- for(int i=0;i<count+1;i++)
- {
- out.write(outdata[i]);
- if(--lineBreak==0)
- {
- out.write('\n');
- lineBreak=maxline;
- }
- }
- }
- if(--lineBreak==0)
- {
- out.write('\n');
- }
- out.write(terminator);
- out.write('\n');
- count = 0;
- lineBreak=maxline;
- flushed=true;
- super.flush();
- }
-
- /**
- * This will close the stream.
- *
- * @throws IOException If there is an error closing the wrapped stream.
- */
- public void close() throws IOException
- {
- try
- {
- super.close();
- }
- finally
- {
- indata=outdata=null;
- }
- }
-
- /**
- * This will flush the stream.
- *
- * @throws Throwable If there is an error.
- */
- protected void finalize() throws Throwable
- {
- try
- {
- flush();
- }
- finally
- {
- super.finalize();
- }
- }
-}
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