1 files changed, 234 insertions, 0 deletions
diff --git a/src/main/java/org/pdfbox/util/ImageParameters.java b/src/main/java/org/pdfbox/util/ImageParameters.java
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+++ b/src/main/java/org/pdfbox/util/ImageParameters.java
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+/**
+ * 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.util;
+
+import org.pdfbox.cos.COSArray;
+import org.pdfbox.cos.COSBase;
+import org.pdfbox.cos.COSDictionary;
+import org.pdfbox.cos.COSInteger;
+import org.pdfbox.cos.COSName;
+import org.pdfbox.cos.COSNumber;
+
+import org.pdfbox.pdmodel.common.COSArrayList;
+import org.pdfbox.pdmodel.graphics.color.PDColorSpace;
+import org.pdfbox.pdmodel.graphics.color.PDColorSpaceFactory;
+
+import java.io.IOException;
+import java.util.List;
+
+/**
+ * This contains all of the image parameters for in inlined image.
+ *
+ * @author Ben Litchfield (ben@csh.rit.edu)
+ * @version $Revision: 1.3 $
+ */
+public class ImageParameters
+{
+    private COSDictionary dictionary;
+
+    /**
+     * Constructor.
+     */
+    public ImageParameters()
+    {
+        dictionary = new COSDictionary();
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param params The image parameters.
+     */
+    public ImageParameters( COSDictionary params )
+    {
+        dictionary = params;
+    }
+    
+    /**
+     * This will get the dictionary that stores the image parameters.
+     * 
+     * @return The COS dictionary that stores the image parameters.
+     */
+    public COSDictionary getDictionary()
+    {
+        return dictionary;
+    }
+
+    private COSBase getCOSObject( String abbreviatedName, String name )
+    {
+        COSBase retval = dictionary.getDictionaryObject( COSName.getPDFName( abbreviatedName ) );
+        if( retval == null )
+        {
+            retval = dictionary.getDictionaryObject( COSName.getPDFName( name ) );
+        }
+        return retval;
+    }
+
+    private int getNumberOrNegativeOne( String abbreviatedName, String name )
+    {
+        int retval = -1;
+        COSNumber number = (COSNumber)getCOSObject( abbreviatedName, name );
+        if( number != null )
+        {
+            retval = number.intValue();
+        }
+        return retval;
+    }
+
+    /**
+     * 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 getNumberOrNegativeOne( "BPC", "BitsPerComponent" );
+    }
+
+    /**
+     * Set the number of bits per component.
+     *
+     * @param bpc The number of bits per component.
+     */
+    public void setBitsPerComponent( int bpc )
+    {
+        dictionary.setItem( COSName.getPDFName( "BPC" ), new COSInteger( 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 = getCOSObject( "CS", "ColorSpace" );
+        PDColorSpace retval = null;
+        if( cs != null )
+        {
+            retval = PDColorSpaceFactory.createColorSpace( cs );
+        }
+        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();
+        }
+        dictionary.setItem( COSName.getPDFName( "CS" ), base );
+    }
+
+    /**
+     * The height of this image.  This will return -1 if one has not
+     * been set.
+     *
+     * @return The height.
+     */
+    public int getHeight()
+    {
+        return getNumberOrNegativeOne( "H", "Height" );
+    }
+
+    /**
+     * Set the height of the image.
+     *
+     * @param h The height of the image.
+     */
+    public void setHeight( int h )
+    {
+        dictionary.setItem( COSName.getPDFName( "H" ), new COSInteger( h ) );
+    }
+
+    /**
+     * The width of this image.  This will return -1 if one has not
+     * been set.
+     *
+     * @return The width.
+     */
+    public int getWidth()
+    {
+        return getNumberOrNegativeOne( "W", "Width" );
+    }
+
+    /**
+     * Set the width of the image.
+     *
+     * @param w The width of the image.
+     */
+    public void setWidth( int w )
+    {
+        dictionary.setItem( COSName.getPDFName( "W" ), new COSInteger( w ) );
+    }
+    
+    /**
+     * This will get the list of filters that are associated with this stream.  Or
+     * null if there are none.
+     * @return A list of all encoding filters to apply to this stream.
+     */
+    public List getFilters()
+    {
+        List retval = null;
+        COSBase filters = dictionary.getDictionaryObject( new String[] {"Filter", "F"} );
+        if( filters instanceof COSName )
+        {
+            COSName name = (COSName)filters;
+            retval = new COSArrayList( name.getName(), name, dictionary, "Filter" );
+        }
+        else if( filters instanceof COSArray )
+        {
+            retval = COSArrayList.convertCOSNameCOSArrayToList( (COSArray)filters );
+        }
+        return retval;
+    }
+    
+    /**
+     * This will set the filters that are part of this stream.
+     * 
+     * @param filters The filters that are part of this stream.
+     */
+    public void setFilters( List filters )
+    {
+        COSBase obj = COSArrayList.convertStringListToCOSNameCOSArray( filters );
+        dictionary.setItem( "Filter", obj );
+    }
+}
+\ No newline at end of file