/*
 *  ====================================================================
 *    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.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import org.apache.poi.sl.draw.binding.CTCustomGeometry2D;
import org.apache.poi.sl.draw.binding.CTGeomGuide;
import org.apache.poi.sl.draw.binding.CTGeomGuideList;
import org.apache.poi.sl.draw.binding.CTGeomRect;
import org.apache.poi.sl.draw.binding.CTPath2D;
import org.apache.poi.sl.draw.binding.CTPath2DList;

Definition of a custom geometric shape
/**
 * Definition of a custom geometric shape
 */
public class CustomGeometry implements Iterable<Path>{
    final List<Guide> adjusts = new ArrayList<>();
    final List<Guide> guides = new ArrayList<>();
    final List<Path> paths = new ArrayList<>();
    Path textBounds;

    public CustomGeometry(CTCustomGeometry2D geom) {
        CTGeomGuideList avLst = geom.getAvLst();
        if(avLst != null) {
            for(CTGeomGuide gd : avLst.getGd()){
                adjusts.add(new AdjustValue(gd));
            }
        }

        CTGeomGuideList gdLst = geom.getGdLst();
        if(gdLst != null) {
            for(CTGeomGuide gd : gdLst.getGd()){
                guides.add(new Guide(gd));
            }
        }

        CTPath2DList pathLst = geom.getPathLst();
        if(pathLst != null) {
            for(CTPath2D spPath : pathLst.getPath()){
                paths.add(new Path(spPath));
            }
        }

        CTGeomRect rect = geom.getRect();
        if(rect != null) {
            textBounds = new Path();
            textBounds.addCommand(new MoveToCommand(rect.getL(), rect.getT()));
            textBounds.addCommand(new LineToCommand(rect.getR(), rect.getT()));
            textBounds.addCommand(new LineToCommand(rect.getR(), rect.getB()));
            textBounds.addCommand(new LineToCommand(rect.getL(), rect.getB()));
            textBounds.addCommand(new ClosePathCommand());
        }
    }

    @Override
    public Iterator<Path> iterator() {
        return paths.iterator();
    }

    public Path getTextBounds(){
        return textBounds;
    }
}