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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.
* ====================================================================
*/
package org.apache.poi.sl.draw.geom;
import java.awt.geom.Rectangle2D;
import java.util.HashMap;
import java.util.Map;
/**
* Date: 10/24/11
*
* @author Yegor Kozlov
*/
public class Context {
final Map<String, Double> _ctx = new HashMap<String, Double>();
final IAdjustableShape _props;
final Rectangle2D _anchor;
public Context(CustomGeometry geom, Rectangle2D anchor, IAdjustableShape props){
_props = props;
_anchor = anchor;
for(Guide gd : geom.adjusts) evaluate(gd);
for(Guide gd : geom.guides) evaluate(gd);
}
public Rectangle2D getShapeAnchor(){
return _anchor;
}
public Guide getAdjustValue(String name){
return _props.getAdjustValue(name);
}
public double getValue(String key){
if(key.matches("(\\+|-)?\\d+")){
return Double.parseDouble(key);
}
Formula builtIn = Formula.builtInFormulas.get(key);
if(builtIn != null){
return builtIn.evaluate(this);
}
if(!_ctx.containsKey(key)) {
throw new RuntimeException("undefined variable: " + key);
}
return _ctx.get(key);
}
public double evaluate(Formula fmla){
double result = fmla.evaluate(this);
String key = fmla.getName();
if(key != null) _ctx.put(key, result);
return result;
}
}
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