| /* |
| |
| 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.batik.parser; |
| |
| import java.io.IOException; |
| |
| /** |
| * This class implements an event-based parser for the SVG points |
| * attribute values (used with polyline and polygon elements). |
| * |
| * @author <a href="mailto:stephane@hillion.org">Stephane Hillion</a> |
| * @version $Id$ |
| */ |
| public class PointsParser extends NumberParser { |
| |
| /** |
| * The points handler used to report parse events. |
| */ |
| protected PointsHandler pointsHandler; |
| |
| /** |
| * Whether the last character was a 'e' or 'E'. |
| */ |
| protected boolean eRead; |
| |
| /** |
| * Creates a new PointsParser. |
| */ |
| public PointsParser() { |
| pointsHandler = DefaultPointsHandler.INSTANCE; |
| } |
| |
| /** |
| * Allows an application to register a points handler. |
| * |
| * <p>If the application does not register a handler, all |
| * events reported by the parser will be silently ignored. |
| * |
| * <p>Applications may register a new or different handler in the |
| * middle of a parse, and the parser must begin using the new |
| * handler immediately.</p> |
| * @param handler The transform list handler. |
| */ |
| public void setPointsHandler(PointsHandler handler) { |
| pointsHandler = handler; |
| } |
| |
| /** |
| * Returns the points handler in use. |
| */ |
| public PointsHandler getPointsHandler() { |
| return pointsHandler; |
| } |
| |
| /** |
| * Parses the current stream. |
| */ |
| protected void doParse() throws ParseException, IOException { |
| pointsHandler.startPoints(); |
| |
| current = reader.read(); |
| skipSpaces(); |
| |
| loop: for (;;) { |
| if (current == -1) { |
| break loop; |
| } |
| float x = parseFloat(); |
| skipCommaSpaces(); |
| float y = parseFloat(); |
| |
| pointsHandler.point(x, y); |
| skipCommaSpaces(); |
| } |
| |
| pointsHandler.endPoints(); |
| } |
| } |