TransformImpl.java

/*
 * Copyright 2016 Red Hat, Inc. and/or its affiliates.
 * Licensed 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.kie.workbench.common.stunner.core.client.canvas;

public class TransformImpl implements Transform {

    private final Point2D translate;
    private final Point2D scale;

    TransformImpl(final Point2D translate,
                  final Point2D scale) {
        this.translate = translate;
        this.scale = scale;
    }

    @Override
    public Point2D getTranslate() {
        return translate;
    }

    @Override
    public Point2D getScale() {
        return scale;
    }

    @Override
    public Point2D transform(final double x,
                             final double y) {
        return new Point2D(
                (x * scale.getX()) + translate.getX(),
                (y * scale.getY()) + translate.getY()
        );
    }
}