de.saxsys.svgfx.core.elements.SVGLinearGradient Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of svgfx Show documentation
Application Framework for svg with JavaFX.
There is a newer version: 2.0.1
/*
 *
 * ******************************************************************************
 *  * Copyright 2015 - 2015 Xyanid
 *  *
 *  * 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 de.saxsys.svgfx.core.elements;

import de.saxsys.svgfx.core.SVGDataProvider;
import de.saxsys.svgfx.core.SVGException;
import de.saxsys.svgfx.core.css.SVGCssStyle;
import de.saxsys.svgfx.core.utils.StringUtils;
import javafx.scene.paint.CycleMethod;
import javafx.scene.paint.LinearGradient;
import javafx.scene.paint.Stop;
import org.xml.sax.Attributes;

import java.util.List;

/**
 * This class represents the linear gradient element from svg
 *
 * @author Xyanid on 24.10.2015.
 */
@SVGElementMapping("linearGradient")
public class SVGLinearGradient extends SVGGradientBase {


    //region Constructor

    /**
     * Creates a new instance of he element using the given attributes and the parent.
     *
     * @param name         value of the element
     * @param attributes   attributes of the element
     * @param parent       parent of the element
     * @param dataProvider dataprovider to be used
     */
    public SVGLinearGradient(final String name, final Attributes attributes, final SVGElementBase parent, final SVGDataProvider dataProvider) {
        super(name, attributes, parent, dataProvider);
    }

    //endregion

    //region Override SVGElementBase

    @Override
    protected final LinearGradient createResult(final SVGCssStyle style) throws SVGException {

        List stops = getStops();

        if (stops.isEmpty()) {
            throw new SVGException("Given linear gradient does not have colors");
        }

        String startX = getAttribute(CoreAttribute.START_X.getName());
        String startY = getAttribute(CoreAttribute.START_Y.getName());
        String endX = getAttribute(CoreAttribute.END_X.getName());
        String endY = getAttribute(CoreAttribute.END_Y.getName());

        // TODO figure out how to apply proportional values here

        return new LinearGradient(StringUtils.isNullOrEmpty(startX) ? 0.0d : Double.parseDouble(startX),
                                  StringUtils.isNullOrEmpty(startY) ? 0.0d : Double.parseDouble(startY),
                                  StringUtils.isNullOrEmpty(endX) ? 1.0d : Double.parseDouble(endX),
                                  StringUtils.isNullOrEmpty(endY) ? 1.0d : Double.parseDouble(endY),
                                  false,
                                  CycleMethod.NO_CYCLE,
                                  stops);
    }

    //endregion
}