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- /*
- * 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.
- */
-
- /* $Id$ */
-
- package org.apache.fop.svg;
-
- import java.awt.GraphicsDevice;
- import java.awt.Rectangle;
- import java.awt.Transparency;
- import java.awt.geom.AffineTransform;
- import java.awt.image.BufferedImage;
- import java.awt.image.ColorModel;
-
-
- /**
- * Our implementation of the class that returns information about
- * roughly what we can handle and want to see (alpha for example).
- */
- class PDFGraphicsConfiguration extends GraphicsConfiguration {
- // We use this to get a good colormodel..
- private static final BufferedImage BI_WITH_ALPHA
- = new BufferedImage(1, 1, BufferedImage.TYPE_INT_ARGB);
- // We use this to get a good colormodel..
- private static final BufferedImage BI_WITHOUT_ALPHA
- = new BufferedImage(1, 1, BufferedImage.TYPE_INT_RGB);
-
- /**
- * Construct a buffered image with an alpha channel, unless
- * transparencty is OPAQUE (no alpha at all).
- *
- * @param width the width of the image
- * @param height the height of the image
- * @param transparency the alpha value of the image
- * @return the new buffered image
- */
- public BufferedImage createCompatibleImage(int width, int height,
- int transparency) {
- if (transparency == Transparency.OPAQUE) {
- return new BufferedImage(width, height,
- BufferedImage.TYPE_INT_RGB);
- } else {
- return new BufferedImage(width, height,
- BufferedImage.TYPE_INT_ARGB);
- }
- }
-
- /**
- * Construct a buffered image with an alpha channel.
- *
- * @param width the width of the image
- * @param height the height of the image
- * @return the new buffered image
- */
- public BufferedImage createCompatibleImage(int width, int height) {
- return new BufferedImage(width, height,
- BufferedImage.TYPE_INT_ARGB);
- }
-
- /**
- * TODO: This should return the page bounds in Pts,
- * I couldn't figure out how to get this for the current
- * page from the PDFDocument (this still works for now,
- * but it should be fixed...).
- *
- * @return the bounds of the PDF document page
- */
- public Rectangle getBounds() {
- return null;
- }
-
- /**
- * Return a good default color model for this 'device'.
- * @return the colour model for the configuration
- */
- public ColorModel getColorModel() {
- return BI_WITH_ALPHA.getColorModel();
- }
-
- /**
- * Return a good color model given <code>transparency</code>
- *
- * @param transparency the alpha value for the colour model
- * @return the colour model for the configuration
- */
- public ColorModel getColorModel(int transparency) {
- if (transparency == Transparency.OPAQUE) {
- return BI_WITHOUT_ALPHA.getColorModel();
- } else {
- return BI_WITH_ALPHA.getColorModel();
- }
- }
-
- /**
- * The default transform (1:1).
- *
- * @return the default transform for the configuration
- */
- public AffineTransform getDefaultTransform() {
- return new AffineTransform();
- }
-
- /**
- * The normalizing transform (1:1) (since we currently
- * render images at 72dpi, which we might want to change
- * in the future).
- *
- * @return the normalizing transform for the configuration
- */
- public AffineTransform getNormalizingTransform() {
- return new AffineTransform(2, 0, 0, 2, 0, 0);
- }
-
- /**
- * Return our dummy instance of GraphicsDevice
- *
- * @return the PDF graphics device
- */
- public GraphicsDevice getDevice() {
- return new PDFGraphicsDevice(this);
- }
-
- }
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