From 6025b6016517c6d898d8957d1d7e03ba71431912 Mon Sep 17 00:00:00 2001 From: tknall Date: Fri, 1 Dec 2006 12:20:24 +0000 Subject: Initial import of release 2.2. git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@4 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c --- .../pdfbox/pdmodel/graphics/color/PDCalGray.java | 240 +++++++++++++++++++++ 1 file changed, 240 insertions(+) create mode 100644 src/main/java/org/pdfbox/pdmodel/graphics/color/PDCalGray.java (limited to 'src/main/java/org/pdfbox/pdmodel/graphics/color/PDCalGray.java') diff --git a/src/main/java/org/pdfbox/pdmodel/graphics/color/PDCalGray.java b/src/main/java/org/pdfbox/pdmodel/graphics/color/PDCalGray.java new file mode 100644 index 0000000..fc6f84e --- /dev/null +++ b/src/main/java/org/pdfbox/pdmodel/graphics/color/PDCalGray.java @@ -0,0 +1,240 @@ +/** + * 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.COSDictionary; +import org.pdfbox.cos.COSFloat; +import org.pdfbox.cos.COSName; +import org.pdfbox.cos.COSNumber; + +import java.awt.color.ColorSpace; +import java.awt.image.ColorModel; + +import java.io.IOException; + +/** + * This class represents a Cal Gray color space. + * + * @author Ben Litchfield (ben@csh.rit.edu) + * @version $Revision: 1.4 $ + */ +public class PDCalGray extends PDColorSpace +{ + /** + * The name of this color space. + */ + public static final String NAME = "CalGray"; + + private COSArray array; + private COSDictionary dictionary; + + /** + * Constructor. + */ + public PDCalGray() + { + array = new COSArray(); + dictionary = new COSDictionary(); + array.add( COSName.getPDFName( NAME ) ); + array.add( dictionary ); + } + + /** + * Constructor with array. + * + * @param gray The underlying color space. + */ + public PDCalGray( COSArray gray ) + { + array = gray; + dictionary = (COSDictionary)array.getObject( 1 ); + } + + /** + * This will get the number of components that this color space is made up of. + * + * @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 + { + return 1; + } + + /** + * This will return the name of the color space. + * + * @return The name of the color space. + */ + public String getName() + { + return NAME; + } + + /** + * 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 + { + throw new IOException( "Not implemented" ); + } + + /** + * 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 + { + throw new IOException( "Not implemented" ); + } + + /** + * Convert this standard java object to a COS object. + * + * @return The cos object that matches this Java object. + */ + public COSBase getCOSObject() + { + return array; + } + + /** + * This will get the gamma value. If none is present then the default of 1 + * will be returned. + * + * @return The gamma value. + */ + public float getGamma() + { + float retval = 1.0f; + COSNumber gamma = (COSNumber)dictionary.getDictionaryObject( COSName.getPDFName( "Gamma" ) ); + if( gamma != null ) + { + retval = gamma.floatValue(); + } + return retval; + } + + /** + * Set the gamma value. + * + * @param value The new gamma value. + */ + public void setGamma( float value ) + { + dictionary.setItem( COSName.getPDFName( "Gamma" ), new COSFloat( value ) ); + } + + /** + * This will return the whitepoint tristimulus. As this is a required field + * this will never return null. A default of 1,1,1 will be returned if the + * pdf does not have any values yet. + * + * @return The whitepoint tristimulus. + */ + public PDTristimulus getWhitepoint() + { + PDTristimulus retval = null; + COSArray wp = (COSArray)dictionary.getDictionaryObject( COSName.getPDFName( "WhitePoint" ) ); + if( wp == null ) + { + wp.add( new COSFloat( 1.0f ) ); + wp.add( new COSFloat( 1.0f ) ); + wp.add( new COSFloat( 1.0f ) ); + dictionary.setItem( COSName.getPDFName( "WhitePoint" ), wp ); + } + return new PDTristimulus( wp ); + } + + /** + * This will set the whitepoint tristimulus. As this is a required field + * this null should not be passed into this function. + * + * @param wp The whitepoint tristimulus. + */ + public void setWhitepoint( PDTristimulus wp ) + { + COSBase wpArray = wp.getCOSObject(); + if( wpArray != null ) + { + dictionary.setItem( COSName.getPDFName( "WhitePoint" ), wpArray ); + } + } + + /** + * This will return the BlackPoint tristimulus. This is an optional field but + * has defaults so this will never return null. + * A default of 0,0,0 will be returned if the pdf does not have any values yet. + * + * @return The blackpoint tristimulus. + */ + public PDTristimulus getBlackPoint() + { + PDTristimulus retval = null; + COSArray bp = (COSArray)dictionary.getDictionaryObject( COSName.getPDFName( "BlackPoint" ) ); + if( bp == null ) + { + bp.add( new COSFloat( 0.0f ) ); + bp.add( new COSFloat( 0.0f ) ); + bp.add( new COSFloat( 0.0f ) ); + dictionary.setItem( COSName.getPDFName( "BlackPoint" ), bp ); + } + return new PDTristimulus( bp ); + } + + /** + * This will set the BlackPoint tristimulus. As this is a required field + * this null should not be passed into this function. + * + * @param bp The BlackPoint tristimulus. + */ + public void setBlackPoint( PDTristimulus bp ) + { + COSBase bpArray = null; + if( bp != null ) + { + bpArray = bp.getCOSObject(); + } + dictionary.setItem( COSName.getPDFName( "BlackPoint" ), bpArray ); + } +} \ No newline at end of file -- cgit v1.2.3