de.intarsys.pdf.pd.PDShadingPattern Maven / Gradle / Ivy

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/*
 * Copyright (c) 2007, intarsys consulting GmbH
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * - Redistributions of source code must retain the above copyright notice,
 *   this list of conditions and the following disclaimer.
 *
 * - Redistributions in binary form must reproduce the above copyright notice,
 *   this list of conditions and the following disclaimer in the documentation
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 *
 * - Neither the name of intarsys 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 COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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package de.intarsys.pdf.pd;

import de.intarsys.pdf.cos.COSBasedObject;
import de.intarsys.pdf.cos.COSDictionary;
import de.intarsys.pdf.cos.COSName;
import de.intarsys.pdf.cos.COSObject;

/**
 * A shading fill pattern.
 * 
 */
public class PDShadingPattern extends PDPattern {
	/**
	 * The meta class implementation
	 */
	static public class MetaClass extends PDPattern.MetaClass {
		protected MetaClass(Class paramInstanceClass) {
			super(paramInstanceClass);
		}

		@Override
		protected COSBasedObject doCreateCOSBasedObject(COSObject object) {
			return new PDShadingPattern(object);
		}
	}

	public static final COSName DK_Shading = COSName.constant("Shading"); //$NON-NLS-1$

	/** The meta class instance */
	public static final MetaClass META = new MetaClass(MetaClass.class
			.getDeclaringClass());

	private PDShading shading;

	protected PDShadingPattern(COSObject object) {
		super(object);
	}

	@Override
	public int getPatternType() {
		return PATTERN_TYPE_SHADING;
	}

	public PDShading getShading() {
		if (shading == null) {
			shading = (PDShading) PDObject.META
					.createFromCos(((COSDictionary) cosGetObject())
							.get(DK_Shading));
		}
		return shading;
	}
}