org.geowe.client.local.model.style.LeafletStyle.java Source code

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Here is the source code for org.geowe.client.local.model.style.LeafletStyle.java

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/*
 * #%L
 * GeoWE Project
 * %%
 * Copyright (C) 2015 - 2016 GeoWE.org
 * %%
 * This file is part of GeoWE.org.
 * 
 * GeoWE 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.
 * 
 * GeoWE 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 GeoWE.  If not, see <http://www.gnu.org/licenses/>.
 * #L%
 */

package org.geowe.client.local.model.style;

import org.geowe.client.local.main.tool.project.ProjectLayerStyle;
import org.geowe.client.local.model.vector.format.GeoJSONCSS;
import org.gwtopenmaps.openlayers.client.util.JSObject;

import com.google.gwt.core.client.JsArrayInteger;
import com.google.gwt.json.client.JSONBoolean;
import com.google.gwt.json.client.JSONNumber;
import com.google.gwt.json.client.JSONObject;
import com.google.gwt.json.client.JSONParser;
import com.google.gwt.json.client.JSONString;
import com.google.gwt.json.client.JSONValue;

/**
 * Representa el estilo para Leaflet
 * 
 * @author jose@geowe.org
 */

public class LeafletStyle {

    public static final String FILL_NAME = "fill";
    public static final String FILL_COLOR_NAME = "fillColor";
    public static final String FILL_OPACITY_NAME = "fillOpacity";
    public static final String FILL_OPACITY2_NAME = "fill-opacity";
    public static final String STROKE_COLOR_NAME = "color";
    public static final String STROKE_WIDTH_NAME = "weight";
    public static final String STROKE_OPACITY_NAME = "opacity";

    public static final String RADIUS_NAME = "radius";
    public static final Integer RADIUS_VALUE = 5;

    public static final String ICON_NAME = "icon";
    public static final String ICON_URL_NAME = "iconUrl";
    public static final String ICON_SIZE_NAME = "iconSize";

    public static ProjectLayerStyle getStyle(String geoJSONCSS) {
        ProjectLayerStyle style = null;
        final JSONValue jsonValue = JSONParser.parseLenient(geoJSONCSS);
        final JSONObject geoJSONCssObject = jsonValue.isObject();

        if (geoJSONCssObject.containsKey(GeoJSONCSS.STYLE_NAME)) {

            JSONObject styleObject = geoJSONCssObject.get(GeoJSONCSS.STYLE_NAME).isObject();

            String fillColor = getStringValue(styleObject, FILL_COLOR_NAME);
            Double fillOpacity = getDoubleValue(styleObject, FILL_OPACITY_NAME);
            if (fillOpacity == null) {
                fillOpacity = getDoubleValue(styleObject, FILL_OPACITY2_NAME);
            }
            String strokeColor = getStringValue(styleObject, STROKE_COLOR_NAME);
            Double strokeWidth = getDoubleValue(styleObject, STROKE_WIDTH_NAME);

            style = new ProjectLayerStyle(fillColor, fillOpacity, strokeColor, strokeWidth);
        }

        return style;
    }

    public static JSObject getStyle(VectorStyleDef def) {

        String fillColor = def.getFill().getNormalColor();
        Double fillOpacity = def.getFill().getOpacity();
        String strokeColor = def.getLine().getNormalColor();
        Double strokeWidth = new Double(def.getLine().getThickness());

        JSObject styleObject = JSObject.createJSObject();
        styleObject.setProperty(FILL_NAME, true);
        styleObject.setProperty(FILL_COLOR_NAME, fillColor);
        styleObject.setProperty(FILL_OPACITY_NAME, fillOpacity);
        styleObject.setProperty(STROKE_COLOR_NAME, strokeColor);
        styleObject.setProperty(STROKE_WIDTH_NAME, strokeWidth);
        styleObject.setProperty(RADIUS_NAME, RADIUS_VALUE);

        //icon
        String iconUrl = def.getPoint().getExternalGraphic();
        if (iconUrl != null) {
            JSObject iconObject = JSObject.createJSObject();
            iconObject.setProperty(ICON_URL_NAME, iconUrl);
            JsArrayInteger iconSize = JSObject.createArray().cast();

            iconSize.push(def.getPoint().getGraphicWidth());
            iconSize.push(def.getPoint().getGraphicHeight());

            JSObject iconSizeObject = iconSize.cast();

            iconObject.setProperty(ICON_SIZE_NAME, iconSizeObject);

            styleObject.setProperty(ICON_NAME, iconObject);
        }

        return styleObject;
    }

    private static String getStringValue(JSONObject styleObject, String key) {
        String newValue = "";

        if (styleObject.containsKey(key)) {
            try {
                newValue = styleObject.get(key).isString().stringValue();
            } catch (Exception e) {
                // si el valor del atributo no est bien definido es ignorado
            }
        }

        return newValue;

    }

    private static Double getDoubleValue(JSONObject styleObject, String key) {
        Double newValue = null;

        if (styleObject.containsKey(key)) {
            try {
                newValue = styleObject.get(key).isNumber().doubleValue();
            } catch (Exception e) {
                // si el valor del atributo no est bien definido es ignorado
            }
        }

        return newValue;
    }
}