diff options
Diffstat (limited to 'src/main/java/org/pdfbox/pdmodel/graphics/xobject')
8 files changed, 1771 insertions, 0 deletions
diff --git a/src/main/java/org/pdfbox/pdmodel/graphics/xobject/PDCcitt.java b/src/main/java/org/pdfbox/pdmodel/graphics/xobject/PDCcitt.java new file mode 100644 index 0000000..59387a0 --- /dev/null +++ b/src/main/java/org/pdfbox/pdmodel/graphics/xobject/PDCcitt.java @@ -0,0 +1,598 @@ +/**
+ * Copyright (c) 2005, 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.pdmodel.graphics.xobject;
+
+import java.awt.image.BufferedImage;
+import java.io.InputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.RandomAccessFile;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.imageio.ImageIO;
+
+import org.pdfbox.cos.COSDictionary;
+import org.pdfbox.cos.COSName;
+
+import org.pdfbox.pdmodel.PDDocument;
+import org.pdfbox.pdmodel.common.PDStream;
+import org.pdfbox.pdmodel.graphics.color.PDDeviceGray;
+
+/**
+ * An image class for CCITT Fax.
+ *
+ * @author paul king
+ * @version $Revision: 1.2 $
+ */
+public class PDCcitt extends PDXObjectImage
+{
+ private static final List FAX_FILTERS = new ArrayList();
+
+ static
+ {
+ FAX_FILTERS.add( COSName.CCITTFAX_DECODE.getName() );
+ FAX_FILTERS.add( COSName.CCITTFAX_DECODE_ABBREVIATION.getName() );
+ }
+
+ /**
+ * Standard constructor.
+ *
+ * @param ccitt The PDStream that already contains all ccitt information.
+ */
+ public PDCcitt(PDStream ccitt)
+ {
+ super(ccitt, "tiff");
+
+ }
+
+ /**
+ * Construct from a tiff file.
+ *
+ * @param doc The document to create the image as part of.
+ * @param raf The random access TIFF file which contains a suitable CCITT compressed image
+ * @throws IOException If there is an error reading the tiff data.
+ */
+
+ public PDCcitt( PDDocument doc, java.io.RandomAccessFile raf ) throws IOException
+ {
+ super( new PDStream(doc),"tiff");
+ // super( new PDStream( doc, null, true ), "tiff" );
+
+ COSDictionary decodeParms = new COSDictionary();
+
+ COSDictionary dic = getCOSStream();
+
+ extractFromTiff(raf, getCOSStream().createFilteredStream(),decodeParms);
+
+ dic.setItem( COSName.FILTER, COSName.CCITTFAX_DECODE);
+ dic.setItem( COSName.SUBTYPE, COSName.IMAGE);
+ dic.setItem( COSName.TYPE, COSName.getPDFName( "XObject" ) );
+ dic.setItem( "DecodeParms", decodeParms);
+
+ setBitsPerComponent( 1 );
+ setColorSpace( new PDDeviceGray() );
+ setWidth( decodeParms.getInt("Columns") );
+ setHeight( decodeParms.getInt("Rows") );
+
+ }
+
+ /**
+ * Returns an image of the CCITT Fax, or null if TIFFs are not supported. (Requires additional JAI Image filters )
+ * @see org.pdfbox.pdmodel.graphics.xobject.PDXObjectImage#getRGBImage()
+ */
+ public BufferedImage getRGBImage() throws IOException
+ {
+ // ImageIO.scanForPlugins();
+ return ImageIO.read(new TiffWrapper(getPDStream().getPartiallyFilteredStream( FAX_FILTERS ),getCOSStream()));
+ }
+
+ /**
+ * This writes a tiff to out.
+ * @see org.pdfbox.pdmodel.graphics.xobject.PDXObjectImage#write2OutputStream(java.io.OutputStream)
+ */
+ public void write2OutputStream(OutputStream out) throws IOException
+ {
+ InputStream data = new TiffWrapper(getPDStream().getPartiallyFilteredStream( FAX_FILTERS ),getCOSStream());
+ byte[] buf = new byte[1024];
+ int amountRead = -1;
+ while( (amountRead = data.read( buf )) != -1 )
+ {
+ out.write( buf, 0, amountRead );
+ }
+ }
+
+ /**
+ * Extract the ccitt stream from the tiff file.
+ *
+ * @param raf - TIFF File
+ * @param os - Stream to write raw ccitt data two
+ * @param parms - COSDictionary which the encoding parameters are added to
+ * @throws IOException If there is an error reading/writing to/from the stream
+ */
+ private void extractFromTiff(RandomAccessFile raf, OutputStream os, COSDictionary parms) throws IOException
+ {
+ try
+ {
+
+ // First check the basic tiff header
+ raf.seek(0);
+ char endianess = (char) raf.read();
+ if ((char) raf.read() != endianess)
+ {
+ throw new IOException("Not a valid tiff file");
+ }
+ //ensure that endianess is either M or I
+ if (endianess != 'M' && endianess != 'I')
+ {
+ throw new IOException("Not a valid tiff file");
+ }
+ int magicNumber = readshort(endianess, raf);
+ if( magicNumber != 42)
+ {
+ throw new IOException("Not a valid tiff file");
+ }
+
+ // Relocate to the first set of tags
+ raf.seek(readlong(endianess, raf));
+
+ int numtags = readshort(endianess, raf);
+
+ // The number 50 is somewhat arbitary, it just stops us load up junk from somewhere and tramping on
+ if (numtags > 50)
+ {
+ throw new IOException("Not a valid tiff file");
+ }
+
+ // Loop through the tags, some will convert to items in the parms dictionary
+ // Other point us to where to find the data stream
+ // The only parm which might change as a result of other options is K, so
+ // We'll deal with that as a special;
+
+ int k=-1000; // Default Non CCITT compression
+ int dataoffset=0;
+ int datalength=0;
+
+ for (int i=0; i < numtags; i++)
+ {
+ int tag = readshort(endianess, raf);
+ int type = readshort(endianess, raf);
+ int count = readlong(endianess, raf);
+ int val = readlong(endianess, raf); // See note
+
+ // Note, we treated that value as a long. The value always occupies 4 bytes
+ // But it might only use the first byte or two. Depending on endianess we might need to correct
+ // Note we ignore all other types, they are of little interest for PDFs/CCITT Fax
+ if (endianess == 'M')
+ {
+ switch (type)
+ {
+ case 1:
+ {
+ val = val >> 24;
+ break; // byte value
+ }
+ case 3:
+ {
+ val = val >> 16;
+ break; // short value
+ }
+ case 4:
+ {
+ break; // long value
+ }
+ default:
+ {
+ //do nothing
+ }
+ }
+ }
+ switch (tag)
+ {
+ case 256:
+ {
+ parms.setInt("Columns",val);
+ break;
+ }
+ case 257:
+ {
+ parms.setInt("Rows",val);
+ break;
+ }
+ case 259:
+ {
+ if (val == 4)
+ {
+ k=-1;
+ }
+ if (val == 3)
+ {
+ k=0;
+ }
+ break; // T6/T4 Compression
+ }
+ case 262:
+ {
+ if (val == 1)
+ {
+ parms.setBoolean("BlackIs1", true);
+ }
+ break;
+ }
+ case 273:
+ {
+ if (count == 1)
+ {
+ dataoffset=val;
+ }
+ break;
+ }
+ case 279:
+ {
+ if (count == 1)
+ {
+ datalength=val;
+ }
+ break;
+ }
+ case 292:
+ {
+ if (val == 1)
+ {
+ k=50; // T4 2D - arbitary K value
+ }
+ break;
+ }
+ case 324:
+ {
+ if (count == 1)
+ {
+ dataoffset=val;
+ }
+ break;
+ }
+ case 325:
+ {
+ if (count == 1)
+ {
+ datalength=val;
+ }
+ break;
+ }
+ default:
+ {
+ //do nothing
+ }
+ }
+ }
+
+ if (k == -1000)
+ {
+ throw new IOException("First image in tiff is not CCITT T4 or T6 compressed");
+ }
+ if (dataoffset == 0)
+ {
+ throw new IOException("First image in tiff is not a single tile/strip");
+ }
+
+ parms.setInt("K",k);
+
+ raf.seek(dataoffset);
+
+ byte[] buf = new byte[8192];
+ int amountRead = -1;
+ while( (amountRead = raf.read( buf,0, Math.min(8192,datalength) )) > 0 )
+ {
+ datalength -= amountRead;
+ os.write( buf, 0, amountRead );
+ }
+
+ }
+ finally
+ {
+ os.close();
+ }
+ }
+
+ private int readshort(char endianess, RandomAccessFile raf) throws IOException
+ {
+ if (endianess == 'I')
+ {
+ return raf.read() | (raf.read() << 8);
+ }
+ return (raf.read() << 8) | raf.read();
+ }
+
+ private int readlong(char endianess, RandomAccessFile raf) throws IOException
+ {
+ if (endianess == 'I')
+ {
+ return raf.read() | (raf.read() << 8) | (raf.read() << 16) | (raf.read() << 24);
+ }
+ return (raf.read() << 24) | (raf.read() << 16) | (raf.read() << 8) | raf.read();
+ }
+
+
+ /**
+ * Extends InputStream to wrap the data from the CCITT Fax with a suitable TIFF Header.
+ * For details see www.tiff.org, which contains useful information including pointers to the
+ * TIFF 6.0 Specification
+ *
+ */
+ private class TiffWrapper extends InputStream
+ {
+
+ private int currentOffset; // When reading, where in the tiffheader are we.
+ private byte[] tiffheader; // Byte array to store tiff header data
+ private InputStream datastream; // Original InputStream
+
+ public TiffWrapper(InputStream rawstream, COSDictionary options)
+ {
+ buildHeader(options);
+ currentOffset=0;
+ datastream = rawstream;
+ }
+
+ // Implement basic methods from InputStream
+
+ public boolean markSupported()
+ {
+ return false;
+ }
+
+ public void reset() throws IOException
+ {
+ throw new IOException("reset not supported");
+ }
+
+ // For simple read, take a byte from the tiffheader array or pass through.
+ public int read() throws IOException
+ {
+ if (currentOffset < tiffheader.length)
+ {
+ return tiffheader[currentOffset++];
+ }
+ return datastream.read();
+ }
+
+ // For read methods only return as many bytes as we have left in the header
+ // if we've exhausted the header, pass through to the InputStream of the raw CCITT data
+ public int read(byte[] data) throws IOException
+ {
+ if (currentOffset < tiffheader.length)
+ {
+ int length = java.lang.Math.min(tiffheader.length - currentOffset, data.length);
+ if (length > 0)
+ {
+ System.arraycopy(tiffheader, currentOffset, data, 0, length);
+ }
+ currentOffset += length;
+ return length;
+ }
+ else
+ {
+ return datastream.read(data);
+ }
+ }
+
+ // For read methods only return as many bytes as we have left in the header
+ // if we've exhausted the header, pass through to the InputStream of the raw CCITT data
+ public int read(byte[] data, int off, int len) throws IOException
+ {
+ if (currentOffset < tiffheader.length)
+ {
+ int length = java.lang.Math.min(tiffheader.length - currentOffset, len);
+ if (length > 0)
+ {
+ System.arraycopy(tiffheader, currentOffset, data, off, length);
+ }
+ currentOffset += length;
+ return length;
+ }
+ else
+ {
+ return datastream.read(data,off,len);
+ }
+ }
+
+ // When skipping if any header data not yet read, only allow to skip what we've in the buffer
+ // Otherwise just pass through.
+ public long skip(long n) throws IOException
+ {
+ if (currentOffset < tiffheader.length)
+ {
+ long length = Math.min(tiffheader.length - currentOffset, n);
+ currentOffset += length;
+ return length;
+ }
+ else
+ {
+ return datastream.skip(n);
+ }
+ }
+
+ // Static data for the beginning of the TIFF header
+ private final byte[] basicHeader = {
+ 'I','I',42,0,8,0,0,0, // File introducer and pointer to first IFD
+ 0,0}; // Number of tags start with two
+
+
+ private int additionalOffset; // Offset in header to additional data
+
+ // Builds up the tiffheader based on the options passed through.
+ private void buildHeader(COSDictionary options)
+ {
+
+ final int numOfTags = 10; // The maximum tags we'll fill
+ final int maxAdditionalData = 24; // The maximum amount of additional data
+ // outside the IFDs. (bytes)
+
+ // The length of the header will be the length of the basic header (10)
+ // plus 12 bytes for each IFD, 4 bytes as a pointer to the next IFD (will be 0)
+ // plus the length of the additional data
+
+ tiffheader = new byte[10 + (12 * numOfTags ) + 4 + maxAdditionalData];
+ java.util.Arrays.fill(tiffheader,(byte)0);
+ System.arraycopy(basicHeader,0,tiffheader,0,basicHeader.length);
+
+ // Additional data outside the IFD starts after the IFD's and pointer to the next IFD (0)
+ additionalOffset = 10 + (12 * numOfTags ) + 4;
+
+ // Now work out the variable values from TIFF defaults,
+ // PDF Defaults and the Dictionary for this XObject
+ short cols = 1728;
+ short rows = 0;
+ short blackis1 = 0;
+ short comptype = 3; // T4 compression
+ long t4options = 0; // Will set if 1d or 2d T4
+
+ COSDictionary decodeParms = (COSDictionary) options.getDictionaryObject("DecodeParms");
+
+ if (decodeParms != null)
+ {
+ cols = (short) decodeParms.getInt("Columns", cols);
+ rows = (short) decodeParms.getInt("Rows", rows);
+ if (decodeParms.getBoolean("BlackIs1", false))
+ {
+ blackis1 = 1;
+ }
+ int k = decodeParms.getInt("K"); // Mandatory parm
+ if (k < 0)
+ {
+ //T6
+ comptype = 4;
+ }
+ if (k > 0)
+ {
+ //T4 2D
+ comptype = 3;
+ t4options = 1;
+ }
+ // else k = 0, leave as default T4 1D compression
+ }
+
+ // If we couldn't get the number of rows, use the main item from XObject
+ if (rows == 0)
+ {
+ rows = (short) options.getInt("Height", rows);
+ }
+
+ // Now put the tags into the tiffheader
+ // These musn't exceed the maximum set above, and by TIFF spec should be sorted into
+ // Numeric sequence.
+
+ addTag(256, cols); // Columns
+ addTag(257, rows); // Rows
+ addTag(259, comptype); // T6
+ addTag(262, blackis1); // Photometric Interpretation
+ addTag(273, (long) tiffheader.length); // Offset to start of image data - updated below
+ addTag(279, (long) options.getInt("Length")); // Length of image data
+ addTag(282, 300, 1); // X Resolution 300 (default unit Inches) This is arbitary
+ addTag(283, 300, 1); // Y Resolution 300 (default unit Inches) This is arbitary
+ if (comptype == 3)
+ {
+ addTag(292, t4options);
+ }
+ addTag(305, "PDFBOX"); // Software generating image
+ }
+
+ /* Tiff types 1 = byte, 2=ascii, 3=short, 4=ulong 5=rational */
+
+ private void addTag(int tag,long value)
+ {
+ // Adds a tag of type 4 (ulong)
+ int count = ++tiffheader[8];
+ int offset = (count-1)*12 + 10;
+ tiffheader[offset]=(byte)(tag & 0xff);
+ tiffheader[offset+1]=(byte)((tag>>8) & 0xff);
+ tiffheader[offset+2]=4; // Type Long
+ tiffheader[offset+4]=1; // One Value
+ tiffheader[offset+8]=(byte)(value & 0xff);
+ tiffheader[offset+9]=(byte)((value>>8) & 0xff);
+ tiffheader[offset+10]=(byte)((value>>16) & 0xff);
+ tiffheader[offset+11]=(byte)((value>>24) & 0xff);
+ }
+
+ private void addTag(int tag, short value)
+ {
+ // Adds a tag of type 3 (short)
+ int count = ++tiffheader[8];
+ int offset = (count-1)*12 + 10;
+ tiffheader[offset]=(byte)(tag & 0xff);
+ tiffheader[offset+1]=(byte)((tag>>8) & 0xff);
+ tiffheader[offset+2]=3; // Type Short
+ tiffheader[offset+4]=1; // One Value
+ tiffheader[offset+8]=(byte)(value & 0xff);
+ tiffheader[offset+9]=(byte)((value>>8) & 0xff);
+ }
+
+ private void addTag(int tag, String value)
+ {
+ // Adds a tag of type 2 (ascii)
+ int count = ++tiffheader[8];
+ int offset = (count-1)*12 + 10;
+ tiffheader[offset]=(byte)(tag & 0xff);
+ tiffheader[offset+1]=(byte)((tag>>8) & 0xff);
+ tiffheader[offset+2]=2; // Type Ascii
+ tiffheader[offset+4]=1; // One Value
+ tiffheader[offset+8]=(byte)(additionalOffset & 0xff);
+ tiffheader[offset+9]=(byte)((additionalOffset>>8) & 0xff);
+ tiffheader[offset+10]=(byte)((additionalOffset>>16) & 0xff);
+ tiffheader[offset+11]=(byte)((additionalOffset>>24) & 0xff);
+ System.arraycopy(value.getBytes(), 0, tiffheader, additionalOffset, value.length());
+ additionalOffset += value.length() + 1;
+ }
+
+ private void addTag(int tag, long numerator, long denominator)
+ {
+ // Adds a tag of type 5 (rational)
+ int count = ++tiffheader[8];
+ int offset = (count-1)*12 + 10;
+ tiffheader[offset]=(byte)(tag & 0xff);
+ tiffheader[offset+1]=(byte)((tag>>8) & 0xff);
+ tiffheader[offset+2]=5; // Type Rational
+ tiffheader[offset+4]=1; // One Value
+ tiffheader[offset+8]=(byte)(additionalOffset & 0xff);
+ tiffheader[offset+9]=(byte)((additionalOffset>>8) & 0xff);
+ tiffheader[offset+10]=(byte)((additionalOffset>>16) & 0xff);
+ tiffheader[offset+11]=(byte)((additionalOffset>>24) & 0xff);
+ tiffheader[additionalOffset++]=(byte) ((numerator) & 0xFF);
+ tiffheader[additionalOffset++]=(byte) ((numerator>>8) & 0xFF);
+ tiffheader[additionalOffset++]=(byte) ((numerator>>16) & 0xFF);
+ tiffheader[additionalOffset++]=(byte) ((numerator>>24) & 0xFF);
+ tiffheader[additionalOffset++]=(byte) ((denominator) & 0xFF);
+ tiffheader[additionalOffset++]=(byte) ((denominator>>8) & 0xFF);
+ tiffheader[additionalOffset++]=(byte) ((denominator>>16) & 0xFF);
+ tiffheader[additionalOffset++]=(byte) ((denominator>>24) & 0xFF);
+ }
+ }
+}
\ No newline at end of file diff --git a/src/main/java/org/pdfbox/pdmodel/graphics/xobject/PDInlinedImage.java b/src/main/java/org/pdfbox/pdmodel/graphics/xobject/PDInlinedImage.java new file mode 100644 index 0000000..009743f --- /dev/null +++ b/src/main/java/org/pdfbox/pdmodel/graphics/xobject/PDInlinedImage.java @@ -0,0 +1,201 @@ +/**
+ * Copyright (c) 2003-2004, 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.pdmodel.graphics.xobject;
+
+import java.awt.image.BufferedImage;
+import java.awt.image.ColorModel;
+import java.awt.image.DataBuffer;
+import java.awt.image.DataBufferByte;
+import java.awt.image.DataBufferInt;
+import java.awt.image.IndexColorModel;
+import java.awt.image.WritableRaster;
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.util.List;
+
+import org.pdfbox.filter.Filter;
+import org.pdfbox.filter.FilterManager;
+import org.pdfbox.pdmodel.graphics.color.PDColorSpace;
+import org.pdfbox.util.ImageParameters;
+
+/**
+ * This class represents an inlined image.
+ *
+ * @author Ben Litchfield (ben@csh.rit.edu)
+ * @version $Revision: 1.4 $
+ */
+public class PDInlinedImage
+{
+ private ImageParameters params;
+ private byte[] imageData;
+
+ /**
+ * This will get the image parameters.
+ *
+ * @return The image parameters.
+ */
+ public ImageParameters getImageParameters()
+ {
+ return params;
+ }
+
+ /**
+ * This will set the image parameters for this image.
+ *
+ * @param imageParams The imageParams.
+ */
+ public void setImageParameters( ImageParameters imageParams )
+ {
+ params = imageParams;
+ }
+
+ /**
+ * Get the bytes for the image.
+ *
+ * @return The image data.
+ */
+ public byte[] getImageData()
+ {
+ return imageData;
+ }
+
+ /**
+ * Set the bytes that make up the image.
+ *
+ * @param value The image data.
+ */
+ public void setImageData(byte[] value)
+ {
+ imageData = value;
+ }
+
+ /**
+ * This will take the inlined image information and create a java.awt.Image from
+ * it.
+ *
+ * @return The image that this object represents.
+ *
+ * @throws IOException If there is an error creating the image.
+ */
+ public BufferedImage createImage() throws IOException
+ {
+ /*
+ * This was the previous implementation, not sure which is better right now.
+ * byte[] transparentColors = new byte[]{(byte)0xFF,(byte)0xFF};
+ byte[] colors=new byte[]{0, (byte)0xFF};
+ IndexColorModel colorModel = new IndexColorModel( 1, 2, colors, colors, colors, transparentColors );
+ BufferedImage image = new BufferedImage(
+ params.getWidth(),
+ params.getHeight(),
+ BufferedImage.TYPE_BYTE_BINARY,
+ colorModel );
+ DataBufferByte buffer = new DataBufferByte( getImageData(), 1 );
+ WritableRaster raster =
+ Raster.createPackedRaster(
+ buffer,
+ params.getWidth(),
+ params.getHeight(),
+ params.getBitsPerComponent(),
+ new Point(0,0) );
+ image.setData( raster );
+ return image;
+ */
+
+
+ //verify again pci32.pdf before changing below
+ PDColorSpace pcs = params.getColorSpace();
+ ColorModel colorModel = null;
+ if(pcs != null)
+ {
+ colorModel =
+ params.getColorSpace().createColorModel(
+ params.getBitsPerComponent() );
+ }
+ else
+ {
+ byte[] transparentColors = new
+ byte[]{(byte)0xFF,(byte)0xFF};
+ byte[] colors=new byte[]{0, (byte)0xFF};
+ colorModel = new IndexColorModel( 1, 2,
+ colors, colors, colors, transparentColors );
+ }
+ List filters = params.getFilters();
+ byte[] finalData = null;
+ if( filters == null )
+ {
+ finalData = getImageData();
+ }
+ else
+ {
+ ByteArrayInputStream in = new ByteArrayInputStream( getImageData() );
+ ByteArrayOutputStream out = new ByteArrayOutputStream(getImageData().length);
+ FilterManager filterManager = new FilterManager();
+ for( int i=0; filters != null && i<filters.size(); i++ )
+ {
+ out.reset();
+ Filter filter = filterManager.getFilter( (String)filters.get( i ) );
+ filter.decode( in, out, params.getDictionary() );
+ in = new ByteArrayInputStream( out.toByteArray() );
+ }
+ finalData = out.toByteArray();
+ }
+
+ WritableRaster raster = colorModel.createCompatibleWritableRaster( params.getWidth(), params.getHeight() );
+ /* Raster.createPackedRaster(
+ buffer,
+ params.getWidth(),
+ params.getHeight(),
+ params.getBitsPerComponent(),
+ new Point(0,0) );
+ */
+ DataBuffer rasterBuffer = raster.getDataBuffer();
+ if( rasterBuffer instanceof DataBufferByte )
+ {
+ DataBufferByte byteBuffer = (DataBufferByte)rasterBuffer;
+ byte[] data = byteBuffer.getData();
+ System.arraycopy( finalData, 0, data, 0, data.length );
+ }
+ else if( rasterBuffer instanceof DataBufferInt )
+ {
+ DataBufferInt byteBuffer = (DataBufferInt)rasterBuffer;
+ int[] data = byteBuffer.getData();
+ for( int i=0; i<finalData.length; i++ )
+ {
+ data[i] = (finalData[i]+256)%256;
+ }
+ }
+ BufferedImage image = new BufferedImage(
+ colorModel, raster, false, null );
+ image.setData( raster );
+ return image;
+ }
+}
\ No newline at end of file diff --git a/src/main/java/org/pdfbox/pdmodel/graphics/xobject/PDJpeg.java b/src/main/java/org/pdfbox/pdmodel/graphics/xobject/PDJpeg.java new file mode 100644 index 0000000..79ee8e8 --- /dev/null +++ b/src/main/java/org/pdfbox/pdmodel/graphics/xobject/PDJpeg.java @@ -0,0 +1,156 @@ +/**
+ * Copyright (c) 2004, 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.pdmodel.graphics.xobject;
+
+import java.awt.image.BufferedImage;
+import java.io.InputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.imageio.ImageIO;
+
+import org.pdfbox.cos.COSDictionary;
+import org.pdfbox.cos.COSName;
+
+import org.pdfbox.pdmodel.PDDocument;
+import org.pdfbox.pdmodel.common.PDStream;
+import org.pdfbox.pdmodel.graphics.color.PDDeviceRGB;
+
+/**
+ * An image class for JPegs.
+ *
+ * @author mathiak
+ * @version $Revision: 1.4 $
+ */
+public class PDJpeg extends PDXObjectImage
+{
+
+ private static final List DCT_FILTERS = new ArrayList();
+
+ static
+ {
+ DCT_FILTERS.add( COSName.DCT_DECODE.getName() );
+ DCT_FILTERS.add( COSName.DCT_DECODE_ABBREVIATION.getName() );
+ }
+
+ /**
+ * Standard constructor.
+ *
+ * @param jpeg The COSStream from which to extract the JPeg
+ */
+ public PDJpeg(PDStream jpeg)
+ {
+ super(jpeg, "jpg");
+ }
+
+ /**
+ * Construct from a stream.
+ *
+ * @param doc The document to create the image as part of.
+ * @param is The stream that contains the jpeg data.
+ * @throws IOException If there is an error reading the jpeg data.
+ */
+ public PDJpeg( PDDocument doc, InputStream is ) throws IOException
+ {
+ super( new PDStream( doc, is, true ), "jpg" );
+ COSDictionary dic = getCOSStream();
+ dic.setItem( COSName.FILTER, COSName.DCT_DECODE );
+ dic.setItem( COSName.SUBTYPE, COSName.IMAGE);
+ dic.setItem( COSName.TYPE, COSName.getPDFName( "XObject" ) );
+
+ BufferedImage image = getRGBImage();
+ setBitsPerComponent( 8 );
+ setColorSpace( PDDeviceRGB.INSTANCE );
+ setHeight( image.getHeight() );
+ setWidth( image.getWidth() );
+
+ }
+
+ /**
+ * Construct from a buffered image.
+ *
+ * @param doc The document to create the image as part of.
+ * @param bi The image to convert to a jpeg
+ * @throws IOException If there is an error processing the jpeg data.
+ */
+ public PDJpeg( PDDocument doc, BufferedImage bi ) throws IOException
+ {
+ super( new PDStream( doc ), "jpg" );
+
+ java.io.OutputStream os = getCOSStream().createFilteredStream();
+ try
+ {
+
+ ImageIO.write(bi,"jpeg",os);
+
+ COSDictionary dic = getCOSStream();
+ dic.setItem( COSName.FILTER, COSName.DCT_DECODE );
+ dic.setItem( COSName.SUBTYPE, COSName.IMAGE);
+ dic.setItem( COSName.TYPE, COSName.getPDFName( "XObject" ) );
+
+ setBitsPerComponent( 8 );
+ setColorSpace( PDDeviceRGB.INSTANCE );
+ setHeight( bi.getHeight() );
+ setWidth( bi.getWidth() );
+ }
+ finally
+ {
+ os.close();
+ }
+ }
+
+ /**
+ * Returns an image of the JPeg, or null if JPegs are not supported. (They should be. )
+ * @see org.pdfbox.pdmodel.graphics.xobject.PDXObjectImage#getRGBImage()
+ */
+ public BufferedImage getRGBImage() throws IOException
+ {
+ return ImageIO.read(getPDStream().getPartiallyFilteredStream( DCT_FILTERS ));
+ }
+
+ /**
+ * This writes the JPeg to out.
+ * @see org.pdfbox.pdmodel.graphics.xobject.PDXObjectImage#write2OutputStream(java.io.OutputStream)
+ */
+ public void write2OutputStream(OutputStream out) throws IOException
+ {
+ InputStream data = getPDStream().getPartiallyFilteredStream( DCT_FILTERS );
+ byte[] buf = new byte[1024];
+ int amountRead = -1;
+ while( (amountRead = data.read( buf )) != -1 )
+ {
+ out.write( buf, 0, amountRead );
+ }
+ }
+}
diff --git a/src/main/java/org/pdfbox/pdmodel/graphics/xobject/PDPixelMap.java b/src/main/java/org/pdfbox/pdmodel/graphics/xobject/PDPixelMap.java new file mode 100644 index 0000000..96a1f29 --- /dev/null +++ b/src/main/java/org/pdfbox/pdmodel/graphics/xobject/PDPixelMap.java @@ -0,0 +1,236 @@ +/**
+ * Copyright (c) 2004-2005, 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.pdmodel.graphics.xobject;
+
+import java.awt.image.DataBufferByte;
+import java.awt.image.BufferedImage;
+import java.awt.image.ColorModel;
+import java.awt.image.WritableRaster;
+import java.io.IOException;
+import java.io.OutputStream;
+
+import javax.imageio.ImageIO;
+
+import org.pdfbox.cos.COSArray;
+import org.pdfbox.cos.COSBase;
+import org.pdfbox.cos.COSDictionary;
+import org.pdfbox.pdmodel.common.PDStream;
+
+import org.pdfbox.pdmodel.graphics.color.PDColorSpace;
+import org.pdfbox.pdmodel.graphics.predictor.PredictorAlgorithm;
+
+/**
+ * This class contains a PixelMap Image.
+ * @author Ben Litchfield (ben@benlitchfield.com)
+ * @author mathiak
+ * @version $Revision: 1.7 $
+ */
+public class PDPixelMap extends PDXObjectImage
+{
+ private BufferedImage image = null;
+
+ /**
+ * Standard constructor. Basically does nothing.
+ * @param pdStream The stream that holds the pixel map.
+ */
+ public PDPixelMap(PDStream pdStream)
+ {
+ super(pdStream, "png");
+ }
+
+ /**
+ * Construct a pixel map image from an AWT image.
+ *
+ * @param doc The PDF document to embed the image in.
+ * @param awtImage The image to read data from.
+ *
+ * @throws IOException If there is an error while embedding this image.
+ */
+ /*
+ * This method is broken and needs to be implemented, any takers?
+ public PDPixelMap(PDDocument doc, BufferedImage awtImage) throws IOException
+ {
+ super( doc, "png");
+ image = awtImage;
+ setWidth( image.getWidth() );
+ setHeight( image.getHeight() );
+
+ ColorModel cm = image.getColorModel();
+ ColorSpace cs = cm.getColorSpace();
+ PDColorSpace pdColorSpace = PDColorSpaceFactory.createColorSpace( doc, cs );
+ setColorSpace( pdColorSpace );
+ //setColorSpace( )
+
+ PDStream stream = getPDStream();
+ OutputStream output = null;
+ try
+ {
+ output = stream.createOutputStream();
+ DataBuffer buffer = awtImage.getRaster().getDataBuffer();
+ if( buffer instanceof DataBufferByte )
+ {
+ DataBufferByte byteBuffer = (DataBufferByte)buffer;
+ byte[] data = byteBuffer.getData();
+ output.write( data );
+ }
+ setBitsPerComponent( cm.getPixelSize() );
+ }
+ finally
+ {
+ if( output != null )
+ {
+ output.close();
+ }
+ }
+ }*/
+
+ /**
+ * Returns a {@link java.awt.image.BufferedImage} of the COSStream
+ * set in the constructor or null if the COSStream could not be encoded.
+ *
+ * @see org.pdfbox.pdmodel.graphics.xobject.PDXObjectImage#getRGBImage()
+ */
+ public BufferedImage getRGBImage() throws IOException
+ {
+ if( image != null )
+ {
+ return image;
+ }
+
+ //byte[] index =
+ //ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_sRGB);
+ int width = getWidth();
+ int height = getHeight();
+ int bpc = getBitsPerComponent();
+ //COSInteger length =
+ // (COSInteger) stream.getStream().getDictionary().getDictionaryObject(COSName.LENGTH);
+ //byte[] array = new byte[stream.getFilteredStream().];
+ byte[] array = getPDStream().getByteArray();
+
+// Get the ColorModel right
+ PDColorSpace colorspace = getColorSpace();
+ ColorModel cm = colorspace.createColorModel( bpc );
+ WritableRaster raster = cm.createCompatibleWritableRaster( width, height );
+ //DataBufferByte buffer = (DataBufferByte)raster.getDataBuffer();
+ DataBufferByte buffer = (DataBufferByte)raster.getDataBuffer();
+ byte[] bufferData = buffer.getData();
+ //System.arraycopy( array, 0, bufferData, 0, array.length );
+ int predictor = getPredictor();
+
+ PredictorAlgorithm filter = PredictorAlgorithm.getFilter(predictor);
+ filter.setWidth(width);
+ filter.setHeight(height);
+ filter.setBpp((bpc * 3) / 8);
+ filter.decode(array, bufferData);
+ image = new BufferedImage(cm, raster, false, null);
+ return image;
+ }
+
+ /**
+ * Writes the image as .png.
+ *
+ * @see org.pdfbox.pdmodel.graphics.xobject.PDXObjectImage#write2OutputStream(java.io.OutputStream)
+ */
+ public void write2OutputStream(OutputStream out) throws IOException
+ {
+ getRGBImage();
+ if (image!=null)
+ {
+ ImageIO.write(image, "png", out);
+ }
+ }
+
+ /**
+ * DecodeParms is an optional parameter for filters.
+ *
+ * It is provided if any of the filters has nondefault parameters. If there
+ * is only one filter it is a dictionary, if there are multiple filters it
+ * is an array with an entry for each filter. An array entry can hold a null
+ * value if only the default values are used or a dictionary with
+ * parameters.
+ *
+ * @return The decoding parameters.
+ *
+ */
+ public COSDictionary getDecodeParams()
+ {
+ COSBase decodeParms = getCOSStream().getDictionaryObject("DecodeParms");
+ if (decodeParms != null)
+ {
+ if (decodeParms instanceof COSDictionary)
+ {
+ return (COSDictionary) decodeParms;
+ }
+ else if (decodeParms instanceof COSArray)
+ {
+ // not implemented yet, which index should we use?
+ return null;//(COSDictionary)((COSArray)decodeParms).get(0);
+ }
+ else
+ {
+ return null;
+ }
+ }
+ return null;
+ }
+
+ /**
+ * A code that selects the predictor algorithm.
+ *
+ * <ul>
+ * <li>1 No prediction (the default value)
+ * <li>2 TIFF Predictor 2
+ * <li>10 PNG prediction (on encoding, PNG None on all rows)
+ * <li>11 PNG prediction (on encoding, PNG Sub on all rows)
+ * <li>12 PNG prediction (on encoding, PNG Up on all rows)
+ * <li>13 PNG prediction (on encoding, PNG Average on all rows)
+ * <li>14 PNG prediction (on encoding, PNG Paeth on all rows)
+ * <li>15 PNG prediction (on encoding, PNG optimum)
+ * </ul>
+ *
+ * Default value: 1.
+ *
+ * @return predictor algorithm code
+ */
+ public int getPredictor()
+ {
+ COSDictionary decodeParms = getDecodeParams();
+ if (decodeParms != null)
+ {
+ int i = decodeParms.getInt("Predictor");
+ if (i != -1)
+ {
+ return i;
+ }
+ }
+ return 1;
+ }
+}
\ No newline at end of file diff --git a/src/main/java/org/pdfbox/pdmodel/graphics/xobject/PDXObject.java b/src/main/java/org/pdfbox/pdmodel/graphics/xobject/PDXObject.java new file mode 100644 index 0000000..99ac8a5 --- /dev/null +++ b/src/main/java/org/pdfbox/pdmodel/graphics/xobject/PDXObject.java @@ -0,0 +1,207 @@ +/**
+ * Copyright (c) 2005, 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.pdmodel.graphics.xobject;
+
+import java.io.IOException;
+import java.util.List;
+
+import org.pdfbox.cos.COSBase;
+import org.pdfbox.cos.COSName;
+import org.pdfbox.cos.COSStream;
+
+import org.pdfbox.pdmodel.PDDocument;
+import org.pdfbox.pdmodel.common.COSObjectable;
+import org.pdfbox.pdmodel.common.PDMetadata;
+import org.pdfbox.pdmodel.common.PDStream;
+
+/**
+ * The base class for all XObjects in the PDF document.
+ *
+ * @author Ben Litchfield (ben@benlitchfield.com)
+ * @author mathiak
+ * @author Marcel Kammer
+ * @version $Revision: 1.12 $
+ */
+public abstract class PDXObject implements COSObjectable
+{
+ private PDStream xobject;
+
+ /**
+ * Standard constuctor.
+ *
+ * @param xobj The XObject dictionary.
+ */
+ public PDXObject(COSStream xobj)
+ {
+ xobject = new PDStream( xobj );
+ }
+
+ /**
+ * Standard constuctor.
+ *
+ * @param xobj The XObject dictionary.
+ */
+ public PDXObject(PDStream xobj)
+ {
+ xobject = xobj;
+ }
+
+ /**
+ * Standard constuctor.
+ *
+ * @param doc The doc to store the object contents.
+ */
+ public PDXObject(PDDocument doc)
+ {
+ xobject = new PDStream(doc);
+ xobject.getStream().setName( COSName.TYPE, "XObject" );
+ }
+
+ /**
+ * Returns the stream.
+ * @see org.pdfbox.pdmodel.common.COSObjectable#getCOSObject()
+ */
+ public COSBase getCOSObject()
+ {
+ return xobject.getCOSObject();
+ }
+
+ /**
+ * Returns the stream.
+ * @return The stream for this object.
+ */
+ public COSStream getCOSStream()
+ {
+ return xobject.getStream();
+ }
+
+ /**
+ * Returns the stream.
+ * @return The stream for this object.
+ */
+ public PDStream getPDStream()
+ {
+ return xobject;
+ }
+
+ /**
+ * Create the correct xobject from the cos base.
+ *
+ * @param xobject The cos level xobject to create.
+ *
+ * @return a pdmodel xobject
+ * @throws IOException If there is an error creating the xobject.
+ */
+ public static PDXObject createXObject( COSBase xobject ) throws IOException
+ {
+ PDXObject retval = null;
+ if( xobject == null )
+ {
+ retval = null;
+ }
+ else if( xobject instanceof COSStream )
+ {
+ COSStream xstream = (COSStream)xobject;
+ String subtype = xstream.getNameAsString( "Subtype" );
+ if( subtype.equals( PDXObjectImage.SUB_TYPE ) )
+ {
+ PDStream image = new PDStream( xstream );
+ // See if filters are DCT or JPX otherwise treat as Bitmap-like
+ // There might be a problem with several filters, but that's ToDo until
+ // I find an example
+ List filters = image.getFilters();
+ if( filters != null && filters.contains( COSName.DCT_DECODE.getName() ) )
+ {
+ return new PDJpeg(image);
+ }
+ else if ( filters != null && filters.contains( COSName.CCITTFAX_DECODE.getName() ) )
+ {
+ return new PDCcitt(image);
+ }
+ else if( filters != null && filters.contains(COSName.JPX_DECODE.getName()))
+ {
+ //throw new IOException( "JPXDecode has not been implemented for images" );
+ //JPX Decode is not really supported right now, but if we are just doing
+ //text extraction then we don't want to throw an exception, so for now
+ //just return a PDPixelMap, which will break later on if it is
+ //actually used, but for text extraction it is not used.
+ return new PDPixelMap( image );
+
+ }
+ else
+ {
+ retval = new PDPixelMap(image);
+ }
+ }
+ else if( subtype.equals( PDXObjectForm.SUB_TYPE ) )
+ {
+ retval = new PDXObjectForm( xstream );
+ }
+ else
+ {
+ throw new IOException( "Unknown xobject subtype '" + subtype + "'" );
+ }
+ }
+ else
+ {
+ throw new IOException( "Unknown xobject type:" + xobject.getClass().getName() );
+ }
+
+ return retval;
+ }
+
+ /**
+ * Get the metadata that is part of the document catalog. This will
+ * return null if there is no meta data for this object.
+ *
+ * @return The metadata for this object.
+ */
+ public PDMetadata getMetadata()
+ {
+ PDMetadata retval = null;
+ COSStream mdStream = (COSStream)xobject.getStream().getDictionaryObject( "Metadata" );
+ if( mdStream != null )
+ {
+ retval = new PDMetadata( mdStream );
+ }
+ return retval;
+ }
+
+ /**
+ * Set the metadata for this object. This can be null.
+ *
+ * @param meta The meta data for this object.
+ */
+ public void setMetadata( PDMetadata meta )
+ {
+ xobject.getStream().setItem( "Metadata", meta );
+ }
+}
diff --git a/src/main/java/org/pdfbox/pdmodel/graphics/xobject/PDXObjectForm.java b/src/main/java/org/pdfbox/pdmodel/graphics/xobject/PDXObjectForm.java new file mode 100644 index 0000000..08858ea --- /dev/null +++ b/src/main/java/org/pdfbox/pdmodel/graphics/xobject/PDXObjectForm.java @@ -0,0 +1,120 @@ +/**
+ * Copyright (c) 2005, 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.pdmodel.graphics.xobject;
+
+import org.pdfbox.cos.COSDictionary;
+import org.pdfbox.cos.COSName;
+import org.pdfbox.cos.COSStream;
+
+import org.pdfbox.pdmodel.PDResources;
+import org.pdfbox.pdmodel.common.PDStream;
+
+/**
+ * A form xobject.
+ *
+ * @author Ben Litchfield (ben@benlitchfield.com)
+ * @version $Revision: 1.4 $
+ */
+public class PDXObjectForm extends PDXObject
+{
+ /**
+ * The XObject subtype.
+ */
+ public static final String SUB_TYPE = "Form";
+
+ /**
+ * Standard constuctor.
+ *
+ * @param formStream The XObject is passed as a COSStream.
+ */
+ public PDXObjectForm(PDStream formStream)
+ {
+ super( formStream );
+ }
+
+ /**
+ * Standard constuctor.
+ *
+ * @param formStream The XObject is passed as a COSStream.
+ */
+ public PDXObjectForm(COSStream formStream)
+ {
+ super( formStream );
+ }
+
+ /**
+ * This will get the form type, currently 1 is the only form type.
+ *
+ * @return The form type.
+ */
+ public int getFormType()
+ {
+ return getCOSStream().getInt( "FormType",1 );
+ }
+
+ /**
+ * Set the form type.
+ *
+ * @param formType The new form type.
+ */
+ public void setFormType( int formType )
+ {
+ getCOSStream().setInt( "FormType", formType );
+ }
+
+ /**
+ * This will get the resources at this page and not look up the hierarchy.
+ * This attribute is inheritable, and findResources() should probably used.
+ * This will return null if no resources are available at this level.
+ *
+ * @return The resources at this level in the hierarchy.
+ */
+ public PDResources getResources()
+ {
+ PDResources retval = null;
+ COSDictionary resources = (COSDictionary)getCOSStream().getDictionaryObject( COSName.RESOURCES );
+ if( resources != null )
+ {
+ retval = new PDResources( resources );
+ }
+ return retval;
+ }
+
+ /**
+ * This will set the resources for this page.
+ *
+ * @param resources The new resources for this page.
+ */
+ public void setResources( PDResources resources )
+ {
+ getCOSStream().setItem( COSName.RESOURCES, resources );
+ }
+}
diff --git a/src/main/java/org/pdfbox/pdmodel/graphics/xobject/PDXObjectImage.java b/src/main/java/org/pdfbox/pdmodel/graphics/xobject/PDXObjectImage.java new file mode 100644 index 0000000..6257113 --- /dev/null +++ b/src/main/java/org/pdfbox/pdmodel/graphics/xobject/PDXObjectImage.java @@ -0,0 +1,244 @@ +/**
+ * Copyright (c) 2004-2005, 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.pdmodel.graphics.xobject;
+
+import java.awt.image.BufferedImage;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+
+import org.pdfbox.cos.COSBase;
+import org.pdfbox.cos.COSName;
+import org.pdfbox.pdmodel.PDDocument;
+import org.pdfbox.pdmodel.common.PDStream;
+import org.pdfbox.pdmodel.graphics.color.PDColorSpace;
+import org.pdfbox.pdmodel.graphics.color.PDColorSpaceFactory;
+import org.pdfbox.pdmodel.graphics.color.PDDeviceGray;
+
+/**
+ * The prototype for all PDImages.
+ *
+ * @author Ben Litchfield (ben@benlitchfield.com)
+ * @author mathiak
+ * @version $Revision: 1.8 $
+ */
+public abstract class PDXObjectImage extends PDXObject
+{
+ /**
+ * The XObject subtype.
+ */
+ public static final String SUB_TYPE = "Image";
+
+ /**
+ * This contains the suffix used when writing to file.
+ */
+ private String suffix;
+
+ /**
+ * Standard constuctor.
+ *
+ * @param imageStream The XObject is passed as a COSStream.
+ * @param fileSuffix The file suffix, jpg/png.
+ */
+ public PDXObjectImage(PDStream imageStream, String fileSuffix)
+ {
+ super( imageStream );
+ suffix = fileSuffix;
+ }
+
+ /**
+ * Standard constuctor.
+ *
+ * @param doc The document to store the stream in.
+ * @param fileSuffix The file suffix, jpg/png.
+ */
+ public PDXObjectImage(PDDocument doc, String fileSuffix)
+ {
+ super( doc );
+ getCOSStream().setName( COSName.SUBTYPE, SUB_TYPE );
+ suffix = fileSuffix;
+ }
+
+ /**
+ * Returns an java.awt.Image, that can be used for display etc.
+ *
+ * @return This PDF object as an AWT image.
+ *
+ * @throws IOException If there is an error creating the image.
+ */
+ public abstract BufferedImage getRGBImage() throws IOException;
+
+ /**
+ * Writes the Image to out.
+ * @param out the OutputStream that the Image is written to.
+ * @throws IOException when somethings wrong with out
+ */
+ public abstract void write2OutputStream(OutputStream out) throws IOException;
+
+ /**
+ * Writes the image to a file with the filename + an appropriate suffix, like "Image.jpg".
+ * The suffix is automatically set by the
+ * @param filename the filename
+ * @throws IOException When somethings wrong with the corresponding file.
+ */
+ public void write2file(String filename) throws IOException
+ {
+ FileOutputStream out = null;
+ try
+ {
+ out = new FileOutputStream(filename + "." + suffix);
+ write2OutputStream(out);
+ out.flush();
+ }
+ finally
+ {
+ if( out != null )
+ {
+ out.close();
+ }
+ }
+ }
+
+ /**
+ * Get the height of the image.
+ *
+ * @return The height of the image.
+ */
+ public int getHeight()
+ {
+ return getCOSStream().getInt( "Height", -1 );
+ }
+
+ /**
+ * Set the height of the image.
+ *
+ * @param height The height of the image.
+ */
+ public void setHeight( int height )
+ {
+ getCOSStream().setInt( "Height", height );
+ }
+
+ /**
+ * Get the width of the image.
+ *
+ * @return The width of the image.
+ */
+ public int getWidth()
+ {
+ return getCOSStream().getInt( "Width", -1 );
+ }
+
+ /**
+ * Set the width of the image.
+ *
+ * @param width The width of the image.
+ */
+ public void setWidth( int width )
+ {
+ getCOSStream().setInt( "Width", width );
+ }
+
+ /**
+ * The bits per component of this image. This will return -1 if one has not
+ * been set.
+ *
+ * @return The number of bits per component.
+ */
+ public int getBitsPerComponent()
+ {
+ return getCOSStream().getInt( new String[] { "BPC", "BitsPerComponent"}, -1 );
+ }
+
+ /**
+ * Set the number of bits per component.
+ *
+ * @param bpc The number of bits per component.
+ */
+ public void setBitsPerComponent( int bpc )
+ {
+ getCOSStream().setInt( "BitsPerComponent", bpc );
+ }
+
+ /**
+ * This will get the color space or null if none exists.
+ *
+ * @return The color space for this image.
+ *
+ * @throws IOException If there is an error getting the colorspace.
+ */
+ public PDColorSpace getColorSpace() throws IOException
+ {
+ COSBase cs = getCOSStream().getDictionaryObject( new String[]{ "CS", "ColorSpace" } );
+ PDColorSpace retval = null;
+ if( cs != null )
+ {
+ retval = PDColorSpaceFactory.createColorSpace( cs );
+ }
+ else
+ {
+ //there are some cases where the 'required' CS value is not present
+ //but we know that it will be grayscale for a CCITT filter.
+ COSBase filter = getCOSStream().getDictionaryObject( "Filter" );
+ if( COSName.CCITTFAX_DECODE.equals( filter ) ||
+ COSName.CCITTFAX_DECODE_ABBREVIATION.equals( filter ) )
+ {
+ retval = new PDDeviceGray();
+ }
+ }
+ return retval;
+ }
+
+ /**
+ * This will set the color space for this image.
+ *
+ * @param cs The color space for this image.
+ */
+ public void setColorSpace( PDColorSpace cs )
+ {
+ COSBase base = null;
+ if( cs != null )
+ {
+ base = cs.getCOSObject();
+ }
+ getCOSStream().setItem( COSName.getPDFName( "ColorSpace" ), base );
+ }
+
+ /**
+ * This will get the suffix for this image type, jpg/png.
+ *
+ * @return The image suffix.
+ */
+ public String getSuffix()
+ {
+ return suffix;
+ }
+}
diff --git a/src/main/java/org/pdfbox/pdmodel/graphics/xobject/package.html b/src/main/java/org/pdfbox/pdmodel/graphics/xobject/package.html new file mode 100644 index 0000000..60d3324 --- /dev/null +++ b/src/main/java/org/pdfbox/pdmodel/graphics/xobject/package.html @@ -0,0 +1,9 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
+<html>
+<head>
+
+</head>
+<body>
+This package deals with images that are stored in a PDF document.
+</body>
+</html>
|