http://xmlgraphics.apache.org/fop/: Apache FOP (Formatting Objects Processor) is the world's first print formatter driven by XSL formatting objects (XSL-FO) and the world's first output independent formatter. It is a Java application that reads a formatting object (FO) tree and renders the resulting pages to a specified output. Output formats currently supported include PDF, PCL, PS, AFP, TIFF, PNG, SVG, XML (area tree representation), Print, AWT and TXT. The primary output target is PDF. (Apache Software Foundation) 
/*
 * 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: RendererContextConstants.java 679326 2008-07-24 09:35:34Z vhennebert $ */

package org.apache.fop.render;


Defines a number of standard constants (keys) for use by the RendererContext class.

/**
 * Defines a number of standard constants (keys) for use by the RendererContext class.
 */
public interface RendererContextConstants {

    
The output stream that the document is being sent to. 
/** The output stream that the document is being sent to. */
    String OUTPUT_STREAM = "outputStream";

    
The current PageViewport being rendered. 
/** The current PageViewport being rendered. */
    String PAGE_VIEWPORT = "pageViewport";

    
The target width of the image being painted. 
/** The target width of the image being painted. */
    String WIDTH = "width";

    
The target height of the image being painted. 
/** The target height of the image being painted. */
    String HEIGHT = "height";

    
The x position that this image is being drawn at. 
/** The x position that this image is being drawn at. */
    String XPOS = "xpos";

    
The y position that this image is being drawn at. 
/** The y position that this image is being drawn at. */
    String YPOS = "ypos";

    
The configuration for the XMLHandler. 
/** The configuration for the XMLHandler. */
    String HANDLER_CONFIGURATION = "cfg";

    
An optional Map (keys: QName, values: String) with attributes containing additional hints
for rendering.

/**
     * An optional Map (keys: QName, values: String) with attributes containing additional hints
     * for rendering.
     */
    String FOREIGN_ATTRIBUTES = "foreign-attributes";

}