/*
Copyright 2010 Stefano Chizzolini. http://www.pdfclown.org
Contributors:
* Stefano Chizzolini (original code developer, http://www.stefanochizzolini.it)
This file should be part of the source code distribution of "PDF Clown library"
(the Program): see the accompanying README files for more info.
This Program is free software; you can redistribute it and/or modify it under the terms
of the GNU Lesser General Public License as published by the Free Software Foundation;
either version 3 of the License, or (at your option) any later version.
This Program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY,
either expressed or implied; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the License for more details.
You should have received a copy of the GNU Lesser General Public License along with this
Program (see README files); if not, go to the GNU website (http://www.gnu.org/licenses/).
Redistribution and use, with or without modification, are permitted provided that such
redistributions retain the above copyright notice, license and disclaimer, along with
this list of conditions.
*/
package org.pdfclown.documents.contents.colorSpaces;
import java.awt.Paint;
import java.util.List;
import org.pdfclown.PDF;
import org.pdfclown.VersionEnum;
import org.pdfclown.documents.Document;
import org.pdfclown.documents.contents.IContentContext;
import org.pdfclown.documents.contents.colorSpaces.TilingPattern.PaintTypeEnum;
import org.pdfclown.objects.PdfArray;
import org.pdfclown.objects.PdfDirectObject;
import org.pdfclown.objects.PdfIndirectObject;
import org.pdfclown.util.NotImplementedException;
/**
Pattern color space [PDF:1.6:4.5.5].
@author Stefano Chizzolini (http://www.stefanochizzolini.it)
@version 0.1.0
*/
@PDF(VersionEnum.PDF12)
public final class PatternColorSpace
extends SpecialColorSpace<PdfDirectObject>
{
// <class>
// <static>
// <fields>
/*
NOTE: In case of no parameters, it may be specified directly (i.e. without being defined
in the ColorSpace subdictionary of the contextual resource dictionary) [PDF:1.6:4.5.7].
*/
//TODO:verify parameters!!!
public static final PatternColorSpace Default = new PatternColorSpace((PdfDirectObject)null,null);
// </fields>
// </static>
// <dynamic>
// <constructors>
//TODO:IMPL new element constructor!
PatternColorSpace(
PdfDirectObject baseObject,
PdfIndirectObject container
)
{super(baseObject,container);}
// </constructors>
// <interface>
// <public>
@Override
public Object clone(
Document context
)
{throw new NotImplementedException();}
@Override
public Color<?> getColor(
List<PdfDirectObject> components,
IContentContext context
)
{
Pattern<?> pattern = context.getResources().getPatterns().get(components.get(components.size()-1));
if(pattern instanceof TilingPattern)
{
TilingPattern tilingPattern = (TilingPattern)pattern;
if(tilingPattern.getPaintType() == PaintTypeEnum.Uncolored)
{
ColorSpace<?> underlyingColorSpace = getUnderlyingColorSpace();
if(underlyingColorSpace == null)
throw new IllegalArgumentException("Uncolored tiling patterns not supported by this color space because no underlying color space has been defined.");
// Get the color to be used for colorizing the uncolored tiling pattern!
Color<?> color = underlyingColorSpace.getColor(components, context);
// Colorize the uncolored tiling pattern!
pattern = tilingPattern.colorize(color);
}
}
return pattern;
}
@Override
public int getComponentCount(
)
{return 0;}
@Override
public Pattern<?> getDefaultColor(
)
{return Pattern.Default;}
@Override
public Paint getPaint(
Color<?> color
)
{
// FIXME: Auto-generated method stub
return null;
}
/**
Gets the color space in which the actual color of the {@link Pattern pattern} is to be specified.
<p>This feature is <i>applicable to {@link TilingPattern uncolored tiling patterns} only</i>.</p>
*/
public ColorSpace<?> getUnderlyingColorSpace(
)
{
PdfDirectObject baseDataObject = getBaseDataObject();
if(baseDataObject instanceof PdfArray)
{
PdfArray baseArrayObject = (PdfArray)baseDataObject;
if(baseArrayObject.size() > 1)
return ColorSpace.wrap(baseArrayObject.get(1), getContainer());
}
return null;
}
// </public>
// </interface>
// </dynamic>
// </class>
}