/*
* 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.apache.pdfbox.pdmodel.graphics.color;
import java.awt.color.ColorSpace;
import java.awt.image.ColorModel;
import java.awt.image.ComponentColorModel;
import java.awt.image.DataBuffer;
import java.awt.Transparency;
import java.io.IOException;
/**
* This class represents a Gray color space.
*
* @author <a href="mailto:ben@benlitchfield.com">Ben Litchfield</a>
* @version $Revision: 1.6 $
*/
public class PDDeviceGray extends PDColorSpace
{
/**
* The name of this color space.
*/
public static final String NAME = "DeviceGray";
/**
* The abbreviated name of this color space.
*/
public static final String ABBREVIATED_NAME = "G";
/**
* This will return the name of the color space.
*
* @return The name of the color space.
*/
public String getName()
{
return NAME;
}
/**
* This will get the number of components that this color space is made up of.
*
* @return The number of components in this color space.
*
* @throws IOException If there is an error getting the number of color components.
*/
public int getNumberOfComponents() throws IOException
{
return 1;
}
/**
* Create a Java colorspace for this colorspace.
*
* @return A color space that can be used for Java AWT operations.
*/
protected ColorSpace createColorSpace()
{
return ColorSpace.getInstance( ColorSpace.CS_GRAY );
}
/**
* Create a Java color model for this colorspace.
*
* @param bpc The number of bits per component.
*
* @return A color model that can be used for Java AWT operations.
*
* @throws IOException If there is an error creating the color model.
*/
public ColorModel createColorModel( int bpc ) throws IOException
{
ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_GRAY);
int[] nBits = {bpc};
ColorModel colorModel = new ComponentColorModel(cs, nBits, false,false,
Transparency.OPAQUE,DataBuffer.TYPE_BYTE);
return colorModel;
}
}