/* =====================================================================
* OrsonPDF : a fast, light-weight PDF library for the Java(tm) platform
* =====================================================================
*
* (C)opyright 2013-2015, by Object Refinery Limited. All rights reserved.
*
* Project Info: http://www.object-refinery.com/orsonpdf/index.html
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU 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; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
* Other names may be trademarks of their respective owners.]
*
* If you do not wish to be bound by the terms of the GPL, an alternative
* commercial license can be purchased. For details, please see visit the
* Orson PDF home page:
*
* http://www.object-refinery.com/orsonpdf/index.html
*
*/
package com.orsonpdf;
import java.awt.geom.AffineTransform;
import com.orsonpdf.shading.Shading;
import com.orsonpdf.util.Args;
/**
* A pattern object (see the concrete subclass {@link ShadingPattern}).
*/
public abstract class Pattern extends PDFObject {
/**
* A shading pattern object.
*/
public static final class ShadingPattern extends Pattern {
private Shading shading;
/**
* Creates a new shading pattern.
*
* @param number the PDF object number.
* @param shading the shading.
* @param t the transform from the initial page space to Java2D space.
*/
public ShadingPattern(int number, Shading shading, AffineTransform t) {
super(number);
this.dictionary.put("/PatternType", "2");
this.dictionary.put("/Matrix", PDFUtils.transformToPDF(t));
setShading(shading);
}
/**
* Returns the shading.
*
* @return The shading (never {@code null}).
*/
public Shading getShading() {
return this.shading;
}
/**
* Sets the shading.
*
* @param shading the shading ({@code null} not permitted).
*/
public void setShading(Shading shading) {
Args.nullNotPermitted(shading, "shading");
this.shading = shading;
this.dictionary.put("/Shading", this.shading);
}
}
protected Dictionary dictionary;
/**
* Creates a new pattern object.
*
* @param number the PDF object number.
*/
protected Pattern(int number) {
super(number);
this.dictionary = new Dictionary("/Pattern");
}
/**
* Returns the bytes that go between the 'obj' and 'endobj' in the
* PDF output for this object.
*
* @return A byte array.
*/
@Override
public byte[] getObjectBytes() {
return this.dictionary.toPDFBytes();
}
}