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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.xddf.usermodel;

import org.apache.poi.util.Beta;
import org.apache.poi.util.Internal;
import org.openxmlformats.schemas.drawingml.x2006.main.CTPoint2D;
import org.openxmlformats.schemas.drawingml.x2006.main.CTPositiveSize2D;
import org.openxmlformats.schemas.drawingml.x2006.main.CTTransform2D;

@Beta
public class XDDFTransform2D {
    private CTTransform2D transform;

    protected XDDFTransform2D(CTTransform2D transform) {
        this.transform = transform;
    }

    @Internal
    protected CTTransform2D getXmlObject() {
        return transform;
    }

    public Boolean getFlipHorizontal() {
        if (transform.isSetFlipH()) {
            return transform.getFlipH();
        } else {
            return null;
        }
    }

    public void setFlipHorizontal(Boolean flip) {
        if (flip == null) {
            if (transform.isSetFlipH()) {
                transform.unsetFlipH();
            }
        } else {
            transform.setFlipH(flip);
        }
    }

    public Boolean getFlipVertical() {
        if (transform.isSetFlipV()) {
            return transform.getFlipV();
        } else {
            return null;
        }
    }

    public void setFlipVertical(Boolean flip) {
        if (flip == null) {
            if (transform.isSetFlipV()) {
                transform.unsetFlipV();
            }
        } else {
            transform.setFlipV(flip);
        }
    }

    public XDDFPositiveSize2D getExtension() {
        if (transform.isSetExt()) {
            return new XDDFPositiveSize2D(transform.getExt());
        } else {
            return null;
        }
    }

    public void setExtension(XDDFPositiveSize2D extension) {
        CTPositiveSize2D xformExt;
        if (extension == null) {
            if (transform.isSetExt()) {
                transform.unsetExt();
            }
            return;
        } else if (transform.isSetExt()) {
            xformExt = transform.getExt();
        } else {
            xformExt = transform.addNewExt();
        }
        xformExt.setCx(extension.getX());
        xformExt.setCy(extension.getY());
    }

    public XDDFPoint2D getOffset() {
        if (transform.isSetOff()) {
            return new XDDFPoint2D(transform.getOff());
        } else {
            return null;
        }
    }

    public void setOffset(XDDFPoint2D offset) {
        CTPoint2D xformOff;
        if (offset == null) {
            if (transform.isSetOff()) {
                transform.unsetOff();
            }
            return;
        } else if (transform.isSetOff()) {
            xformOff = transform.getOff();
        } else {
            xformOff = transform.addNewOff();
        }
        xformOff.setX(offset.getX());
        xformOff.setY(offset.getY());
    }

    public Double getRotation() {
        if (transform.isSetRot()) {
            return Angles.attributeToDegrees(transform.getRot());
        } else {
            return null;
        }
    }

    public void setRotation(Double rotation) {
        if (rotation == null) {
            if (transform.isSetRot()) {
                transform.unsetRot();
            }
        } else {
            transform.setRot(Angles.degreesToAttribute(rotation));
        }
    }
}