de.symeda.sormas.ui.dashboard.statistics.SvgCircleElement.java Source code

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Here is the source code for de.symeda.sormas.ui.dashboard.statistics.SvgCircleElement.java

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/*******************************************************************************
 * SORMAS - Surveillance Outbreak Response Management & Analysis System
 * Copyright  2016-2018 Helmholtz-Zentrum fr Infektionsforschung GmbH (HZI)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 *******************************************************************************/
package de.symeda.sormas.ui.dashboard.statistics;

import com.vaadin.shared.ui.ContentMode;
import com.vaadin.ui.Label;

@SuppressWarnings("serial")
public class SvgCircleElement extends Label {

    private final boolean showPercentage;
    private int percentage;

    public SvgCircleElement(boolean showPercentage) {
        setContentMode(ContentMode.HTML);
        this.showPercentage = showPercentage;
        updateSvg();
    }

    public void updateSvg(int percentage, SvgCircleElementPart... svgCircleElementParts) {
        this.percentage = percentage;
        updateSvg(svgCircleElementParts);
    }

    public void updateSvg(SvgCircleElementPart... svgCircleElementParts) {
        StringBuilder sb = new StringBuilder();
        if (svgCircleElementParts.length > 0) {
            sb.append("<svg xmlns=\"http://www.w3.org/2000/svg\" viewbox=\"0 0 36 36\">");
            int percentageSoFar = 0;
            for (SvgCircleElementPart circlePart : svgCircleElementParts) {
                sb.append("<path class=\"svg-circle " + circlePart.strokeClass + "\" " + "stroke-dasharray=\""
                        + circlePart.percentage + ", 100\" " + "stroke-dashoffset=\"-" + percentageSoFar + "\" "
                        + "d=\"M18 2.0845 " + "a 15.9155 15.9155 0 0 1 0 31.831 "
                        + "a 15.9155 15.9155 0 0 1 0 -31.831\"/>");
                percentageSoFar += circlePart.percentage;
            }
            if (showPercentage) {
                sb.append("<text x=\"18\" y=\"20.35\" fill=\"#005A9C\" "
                        + "style=\"font-size: 0.75em; font-weight: bold; text-anchor: middle;\">" + percentage
                        + "%</text>");
            }
            sb.append("</svg>");
        }

        setValue(sb.toString());
    }

    public class SvgCircleElementPart {
        private String strokeClass;
        private int percentage;

        public SvgCircleElementPart(String strokeClass, int percentage) {
            this.strokeClass = strokeClass;
            this.percentage = percentage;
        }
    }

}