Android Open Source - RadaeePDF-B4A P D F Mem Stream

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License

The source code is released under:

Apache License

Java Source Code

package com.radaee.util;
//ww w  . j a  v a  2s .c o m
import com.radaee.pdf.Document.PDFStream;

public class PDFMemStream implements PDFStream
{
  private byte[] m_data;
  private int m_pos = 0;
  private int m_len = 0;
  private void copy_eles( byte[] dst, byte[] src, int len )
  {
    for( int cur = 0; cur < len; cur++ )
      dst[cur] = src[cur];
  }
  private void copy_eles( byte[] dst, byte[] src, int src_off, int len )
  {
    for( int cur = 0; cur < len; cur++ )
      dst[cur] = src[src_off + cur];
  }
  private void copy_eles( byte[] dst, int dst_off, byte[] src, int len )
  {
    for( int cur = 0; cur < len; cur++ )
      dst[dst_off + cur] = src[cur];
  }
  public void create()
  {
    m_data = null;
    m_pos = 0;
    m_len = 0;
  }
  public boolean writeable()
  {
    return true;
  }

  public int get_size()
  {
    return m_len;
  }

  public int read(byte[] data)
  {
    int len = data.length;
    if( len + m_pos > m_len )
      len = m_len - m_pos;
    copy_eles( data, m_data, m_pos, len );
    m_pos += len;
    return len;
  }

  public int write(byte[] data)
  {
    if( m_pos + data.length > m_data.length )
    {
      int new_len = (m_pos + data.length + 4096)&(~4095);
      byte[] new_data = new byte[new_len];
      copy_eles( new_data, m_data, m_len );
      copy_eles( new_data, m_len, data, data.length );
      m_data = new_data;
      m_len = new_len;
    }
    else
    {
      copy_eles( m_data, m_len, data, data.length );
    }
    m_pos += data.length;
    if( m_pos > m_len )
      m_len = m_pos;
    return data.length;
  }

  public void seek(int pos)
  {
    m_pos = pos;
  }

  public int tell()
  {
    return m_pos;
  }

}

Java Source Code List

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