org.sejda.sambox.pdmodel.graphics.shading.AxialShadingPaint Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of sambox Show documentation

An Apache PDFBox fork intended to be used as PDF processor for Sejda and PDFsam related projects

There is a newer version: 3.0.21

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.sejda.sambox.pdmodel.graphics.shading;

import java.awt.Color;
import java.awt.PaintContext;
import java.awt.Rectangle;
import java.awt.RenderingHints;
import java.awt.geom.AffineTransform;
import java.awt.geom.Rectangle2D;
import java.awt.image.ColorModel;
import java.io.IOException;

import org.sejda.sambox.util.Matrix;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * AWT Paint for axial shading.
 *
 */
public class AxialShadingPaint extends ShadingPaint
{
    private static final Logger LOG = LoggerFactory.getLogger(AxialShadingPaint.class);

    /**
     * Constructor.
     *
     * @param shadingType2 the shading resources
     * @param matrix the pattern matrix concatenated with that of the parent content stream
     */
    AxialShadingPaint(PDShadingType2 shadingType2, Matrix matrix)
    {
        super(shadingType2, matrix);
    }

    @Override
    public int getTransparency()
    {
        return 0;
    }

    @Override
    public PaintContext createContext(ColorModel cm, Rectangle deviceBounds, Rectangle2D userBounds,
                                      AffineTransform xform, RenderingHints hints)
    {
        try
        {
            return new AxialShadingContext(shading, cm, xform, matrix, deviceBounds);
        }
        catch (IOException e)
        {
            LOG.error("An error occurred while painting", e);
            return new Color(0, 0, 0, 0).createContext(cm, deviceBounds, userBounds, xform, hints);
        }
    }
}