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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.Arc2D;
import java.awt.geom.Path2D;
import java.awt.geom.Point2D;
import org.apache.poi.sl.draw.binding.CTPath2DArcTo;
/**
* ArcTo command within a shape path in DrawingML:
*
*
*
* Where wr
and wh
are the height and width radiuses
* of the supposed circle being used to draw the arc. This gives the circle
* a total height of (2 * hR) and a total width of (2 * wR)
*
* stAng is the start
angle and >swAng
is the swing angle
*
* @author Yegor Kozlov
*/
public class ArcToCommand implements PathCommand {
private String hr, wr, stAng, swAng;
ArcToCommand(CTPath2DArcTo arc){
hr = arc.getHR().toString();
wr = arc.getWR().toString();
stAng = arc.getStAng().toString();
swAng = arc.getSwAng().toString();
}
public void execute(Path2D.Double path, Context ctx){
double rx = ctx.getValue(wr);
double ry = ctx.getValue(hr);
double start = ctx.getValue(stAng) / 60000;
double extent = ctx.getValue(swAng) / 60000;
Point2D pt = path.getCurrentPoint();
double x0 = pt.getX() - rx - rx * Math.cos(Math.toRadians(start));
double y0 = pt.getY() - ry - ry * Math.sin(Math.toRadians(start));
Arc2D arc = new Arc2D.Double(
x0,
y0,
2 * rx, 2 * ry,
-start, -extent,
Arc2D.OPEN);
path.append(arc, true);
}
}