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

Go to download
Show more of this group Show more artifacts with this name
Show all versions of jpod Show documentation
This is a fork of http://sourceforge.net/projects/jpodlib/ as development seems to be frozen. We're providing some bug fixes along with deployments to maven.
There is a newer version: 2.0
Show newest version
/*
 * 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
 *   and/or other materials provided with the distribution.
 *
 * - 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
 * 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.
 */
package de.intarsys.pdf.pd;

import de.intarsys.pdf.cds.CDSMatrix;
import de.intarsys.pdf.cos.COSBasedObject;
import de.intarsys.pdf.cos.COSDictionary;
import de.intarsys.pdf.cos.COSName;
import de.intarsys.pdf.cos.COSObject;
import de.intarsys.pdf.cos.COSRuntimeException;
import de.intarsys.pdf.cos.COSStream;

/**
 * A pattern to be used when filling a shape.
 */
public abstract class PDPattern extends PDObject {
    /**
     * The meta class implementation
     */
    public static class MetaClass extends PDObject.MetaClass {
        protected MetaClass(Class paramInstanceClass) {
            super(paramInstanceClass);
        }

        @Override
        public Class getRootClass() {
            return PDPattern.class;
        }

        @Override
        protected COSBasedObject.MetaClass doDetermineClass(COSObject object) {
            COSDictionary dictionary;
            int patternType;

            if (object instanceof COSStream) {
                dictionary = ((COSStream) object).getDict();
            } else {
                dictionary = object.asDictionary();
            }
            patternType = dictionary.get(DK_PatternType).asInteger().intValue();

            switch (patternType) {
                case PATTERN_TYPE_TILING:
                    return PDTilingPattern.META;
                case PATTERN_TYPE_SHADING:
                    return PDShadingPattern.META;
                default:
                    object.handleException(new COSRuntimeException("unsupported pattern type "
                                                                   + patternType)); //$NON-NLS-1$
                    return null;
            }
        }
    }

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

    public static final COSName DK_Matrix = COSName.constant("Matrix"); //$NON-NLS-1$
    public static final COSName DK_PatternType = COSName.constant("PatternType"); //$NON-NLS-1$

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

    public static final int PATTERN_TYPE_SHADING = 2;

    public static final int PATTERN_TYPE_TILING = 1;

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

    public abstract int getPatternType();

    /*
     * (non-Javadoc)
     *
     * @see de.intarsys.pdf.pd.PDObject#cosGetExpectedType()
     */
    @Override
    protected COSName cosGetExpectedType() {
        return CN_Type_Pattern;
    }

    public CDSMatrix getMatrix() {
        return CDSMatrix.createFromCOS(cosGetField(DK_Matrix).asArray());
    }

    public void setMatrix(CDSMatrix matrix) {
        setFieldObject(DK_Matrix, matrix);
    }
}