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Diffstat (limited to 'src/main/java/org/pdfbox/pdmodel/graphics/color/PDICCBased.java')
| -rw-r--r-- | src/main/java/org/pdfbox/pdmodel/graphics/color/PDICCBased.java | 343 |
1 files changed, 343 insertions, 0 deletions
diff --git a/src/main/java/org/pdfbox/pdmodel/graphics/color/PDICCBased.java b/src/main/java/org/pdfbox/pdmodel/graphics/color/PDICCBased.java new file mode 100644 index 0000000..d8189d0 --- /dev/null +++ b/src/main/java/org/pdfbox/pdmodel/graphics/color/PDICCBased.java @@ -0,0 +1,343 @@ +/**
+ * 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.color;
+
+import org.pdfbox.cos.COSArray;
+import org.pdfbox.cos.COSBase;
+import org.pdfbox.cos.COSInteger;
+import org.pdfbox.cos.COSFloat;
+import org.pdfbox.cos.COSName;
+import org.pdfbox.cos.COSNumber;
+import org.pdfbox.cos.COSStream;
+
+import org.pdfbox.pdmodel.PDDocument;
+import org.pdfbox.pdmodel.common.COSArrayList;
+import org.pdfbox.pdmodel.common.PDRange;
+import org.pdfbox.pdmodel.common.PDStream;
+
+import java.awt.Transparency;
+import java.awt.color.ColorSpace;
+import java.awt.color.ICC_ColorSpace;
+import java.awt.color.ICC_Profile;
+import java.awt.image.ColorModel;
+import java.awt.image.ComponentColorModel;
+import java.awt.image.DataBuffer;
+
+import java.io.InputStream;
+import java.io.IOException;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * This class represents a ICC profile color space.
+ *
+ * @author Ben Litchfield (ben@csh.rit.edu)
+ * @version $Revision: 1.5 $
+ */
+public class PDICCBased extends PDColorSpace
+{
+ /**
+ * The name of this color space.
+ */
+ public static final String NAME = "ICCBased";
+
+ private COSArray array;
+ private PDStream stream;
+
+ /**
+ * Default constructor, creates empty stream.
+ *
+ * @param doc The document to store the icc data.
+ */
+ public PDICCBased( PDDocument doc )
+ {
+ array = new COSArray();
+ array.add( COSName.getPDFName( NAME ) );
+ array.add( new PDStream( doc ) );
+ }
+
+ /**
+ * Constructor.
+ *
+ * @param iccArray The ICC stream object.
+ */
+ public PDICCBased( COSArray iccArray )
+ {
+ array = iccArray;
+ stream = new PDStream( (COSStream)iccArray.getObject( 1 ) );
+ }
+
+ /**
+ * This will return the name of the color space.
+ *
+ * @return The name of the color space.
+ */
+ public String getName()
+ {
+ return NAME;
+ }
+
+ /**
+ * Convert this standard java object to a COS object.
+ *
+ * @return The cos object that matches this Java object.
+ */
+ public COSBase getCOSObject()
+ {
+ return array;
+ }
+
+ /**
+ * Get the pd stream for this icc color space.
+ *
+ * @return Get the stream for this icc based color space.
+ */
+ public PDStream getPDStream()
+ {
+ return stream;
+ }
+
+ /**
+ * Create a Java colorspace for this colorspace.
+ *
+ * @return A color space that can be used for Java AWT operations.
+ *
+ * @throws IOException If there is an error creating the color space.
+ */
+ public ColorSpace createColorSpace() throws IOException
+ {
+ InputStream profile = null;
+ ColorSpace cSpace = null;
+ try
+ {
+ profile = stream.createInputStream();
+ ICC_Profile iccProfile = ICC_Profile.getInstance( profile );
+ cSpace = new ICC_ColorSpace( iccProfile );
+ }
+ finally
+ {
+ if( profile != null )
+ {
+ profile.close();
+ }
+ }
+ return cSpace;
+ }
+
+ /**
+ * Create a Java color model for this colorspace.
+ *
+ * @param bpc The number of bits per component.
+ *
+ * @return A color model that can be used for Java AWT operations.
+ *
+ * @throws IOException If there is an error creating the color model.
+ */
+ public ColorModel createColorModel( int bpc ) throws IOException
+ {
+ int[] nbBits = { bpc, bpc, bpc };
+ ComponentColorModel componentColorModel =
+ new ComponentColorModel( createColorSpace(),
+ nbBits,
+ false,
+ false,
+ Transparency.OPAQUE,
+ DataBuffer.TYPE_BYTE );
+
+ return componentColorModel;
+ }
+
+ /**
+ * This will return the number of color components. As of PDF 1.4 this will
+ * be 1,3,4.
+ *
+ * @return The number of components in this color space.
+ *
+ * @throws IOException If there is an error getting the number of color components.
+ */
+ public int getNumberOfComponents() throws IOException
+ {
+ COSNumber n = (COSNumber)stream.getStream().getDictionaryObject( COSName.getPDFName( "N" ) );
+ return n.intValue();
+ }
+
+ /**
+ * This will set the number of color components.
+ *
+ * @param n The number of color components.
+ */
+ public void setNumberOfComponents( int n )
+ {
+ stream.getStream().setItem( COSName.getPDFName( "N" ), new COSInteger( n ) );
+ }
+
+ /**
+ * This will return a list of alternate color spaces(PDColorSpace) if the display application
+ * does not support this icc stream.
+ *
+ * @return A list of alternate color spaces.
+ *
+ * @throws IOException If there is an error getting the alternate color spaces.
+ */
+ public List getAlternateColorSpaces() throws IOException
+ {
+ COSBase alternate = stream.getStream().getDictionaryObject( COSName.getPDFName( "Alternate" ) );
+ COSArray alternateArray = null;
+ if( alternate == null )
+ {
+ alternateArray = new COSArray();
+ int numComponents = getNumberOfComponents();
+ String csName = null;
+ if( numComponents == 1 )
+ {
+ csName = PDDeviceGray.NAME;
+ }
+ else if( numComponents == 3 )
+ {
+ csName = PDDeviceRGB.NAME;
+ }
+ else if( numComponents == 4 )
+ {
+ csName = PDDeviceCMYK.NAME;
+ }
+ else
+ {
+ throw new IOException( "Unknown colorspace number of components:" + numComponents );
+ }
+ alternateArray.add( COSName.getPDFName( csName ) );
+ }
+ else
+ {
+ if( alternate instanceof COSArray )
+ {
+ alternateArray = (COSArray)alternate;
+ }
+ else if( alternate instanceof COSName )
+ {
+ alternateArray = new COSArray();
+ alternateArray.add( alternate );
+ }
+ else
+ {
+ throw new IOException( "Error: expected COSArray or COSName and not " +
+ alternate.getClass().getName() );
+ }
+ }
+ List retval = new ArrayList();
+ for( int i=0; i<alternateArray.size(); i++ )
+ {
+ retval.add( PDColorSpaceFactory.createColorSpace( alternateArray.get( i ) ) );
+ }
+ return new COSArrayList( retval, alternateArray );
+ }
+
+ /**
+ * This will set the list of alternate color spaces. This should be a list
+ * of PDColorSpace objects.
+ *
+ * @param list The list of colorspace objects.
+ */
+ public void setAlternateColorSpaces( List list )
+ {
+ COSArray altArray = null;
+ if( list != null )
+ {
+ altArray = COSArrayList.converterToCOSArray( list );
+ }
+ stream.getStream().setItem( COSName.getPDFName( "Alternate" ), altArray );
+ }
+
+ private COSArray getRangeArray( int n )
+ {
+ COSArray rangeArray = (COSArray)stream.getStream().getDictionaryObject( COSName.getPDFName( "Range" ) );
+ if( rangeArray == null )
+ {
+ rangeArray = new COSArray();
+ stream.getStream().setItem( COSName.getPDFName( "Range" ), rangeArray );
+ while( rangeArray.size() < n*2 )
+ {
+ rangeArray.add( new COSFloat( -100 ) );
+ rangeArray.add( new COSFloat( 100 ) );
+ }
+ }
+ return rangeArray;
+ }
+
+ /**
+ * This will get the range for a certain component number. This is will never
+ * return null. If it is not present then the range -100 to 100 will
+ * be returned.
+ *
+ * @param n The component number to get the range for.
+ *
+ * @return The range for this component.
+ */
+ public PDRange getRangeForComponent( int n )
+ {
+ COSArray rangeArray = getRangeArray( n );
+ return new PDRange( rangeArray, n );
+ }
+
+ /**
+ * This will set the a range for this color space.
+ *
+ * @param range The new range for the a component.
+ * @param n The component to set the range for.
+ */
+ public void setRangeForComponent( PDRange range, int n )
+ {
+ COSArray rangeArray = getRangeArray( n );
+ rangeArray.set( n*2, new COSFloat( range.getMin() ) );
+ rangeArray.set( n*2+1, new COSFloat( range.getMax() ) );
+ }
+
+ /**
+ * This will get the metadata stream for this object. Null if there is no
+ * metadata stream.
+ *
+ * @return The metadata stream, if it exists.
+ */
+ public COSStream getMetadata()
+ {
+ return (COSStream)stream.getStream().getDictionaryObject( COSName.getPDFName( "Metadata" ) );
+ }
+
+ /**
+ * This will set the metadata stream that is associated with this color space.
+ *
+ * @param metadata The new metadata stream.
+ */
+ public void setMetadata( COSStream metadata )
+ {
+ stream.getStream().setItem( COSName.getPDFName( "Metadata" ), metadata );
+ }
+}
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