org.apache.poi.sl.draw.geom.ArcToCommandIf Maven / Gradle / Ivy
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This OSGi bundle wraps poi, poi-ooxml, and poi-scratchpad ${pkgVersion} jar files.
/*
* ====================================================================
* 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 static org.apache.poi.sl.draw.geom.Formula.OOXML_DEGREE;
import java.awt.geom.Arc2D;
import java.awt.geom.Path2D;
import java.awt.geom.Point2D;
public interface ArcToCommandIf extends PathCommand {
void setHR(String hr);
void setWR(String wr);
void setStAng(String stAng);
void setSwAng(String swAng);
String getHR();
String getWR();
String getStAng();
String getSwAng();
@Override
default void execute(Path2D.Double path, Context ctx){
double rx = ctx.getValue(getWR());
double ry = ctx.getValue(getHR());
double ooStart = ctx.getValue(getStAng()) / OOXML_DEGREE;
double ooExtent = ctx.getValue(getSwAng()) / OOXML_DEGREE;
// skew the angles for AWT output
double awtStart = ArcToCommand.convertOoxml2AwtAngle(ooStart, rx, ry);
double awtSweep = ArcToCommand.convertOoxml2AwtAngle(ooStart+ooExtent, rx, ry)-awtStart;
// calculate the inverse angle - taken from the (reversed) preset definition
double radStart = Math.toRadians(ooStart);
double invStart = Math.atan2(rx * Math.sin(radStart), ry * Math.cos(radStart));
Point2D pt = path.getCurrentPoint();
// calculate top/left corner
double x0 = pt.getX() - rx * Math.cos(invStart) - rx;
double y0 = pt.getY() - ry * Math.sin(invStart) - ry;
Arc2D arc = new Arc2D.Double(x0, y0, 2 * rx, 2 * ry, awtStart, awtSweep, Arc2D.OPEN);
path.append(arc, true);
}
}