1 files changed, 240 insertions, 0 deletions
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
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+++ 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