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- /*
- * Copyright 2006 The Apache Software Foundation.
- *
- * Licensed 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.
- */
-
- /* $Id$ */
-
- package org.apache.fop.render.pcl;
-
- import java.awt.RenderingHints;
- import java.awt.color.ColorSpace;
- import java.awt.image.BufferedImage;
- import java.awt.image.ColorConvertOp;
- import java.awt.image.RenderedImage;
-
- /**
- * Default implementation of the MonochromeBitmapConverter which uses the Java Class Library
- * to convert grayscale bitmaps to monochrome bitmaps.
- */
- public class DefaultMonochromeBitmapConverter implements
- MonochromeBitmapConverter {
-
- /** @see MonochromeBitmapConverter#setHint(java.lang.String, java.lang.String) */
- public void setHint(String name, String value) {
- //ignore, not supported
- }
-
- /** @see MonochromeBitmapConverter#convertToMonochrome(java.awt.image.BufferedImage) */
- public RenderedImage convertToMonochrome(BufferedImage img) {
- BufferedImage buf = new BufferedImage(img.getWidth(), img.getHeight(),
- BufferedImage.TYPE_BYTE_BINARY);
- RenderingHints hints = new RenderingHints(null);
- //This hint doesn't seem to make a difference :-(
- hints.put(RenderingHints.KEY_DITHERING, RenderingHints.VALUE_DITHER_ENABLE);
- ColorConvertOp op = new ColorConvertOp(
- ColorSpace.getInstance(ColorSpace.CS_GRAY), hints);
- op.filter(img, buf);
- return buf;
- }
-
- }
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