/*
* This file is part of the GeoLatte project.
*
* GeoLatte is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GeoLatte 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with GeoLatte. If not, see <http://www.gnu.org/licenses/>.
*
* Copyright (C) 2010 - 2011 and Ownership of code is shared by:
* Qmino bvba - Esperantolaan 4 - 3001 Heverlee (http://www.qmino.com)
* Geovise bvba - Generaal Eisenhowerlei 9 - 2140 Antwerpen (http://www.geovise.com)
*/
package org.geolatte.maprenderer.sld;
import net.opengis.se.v_1_1_0.SvgParameterType;
import org.geolatte.maprenderer.util.JAXBHelper;
import java.awt.*;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
//TODO -- add support for non-literal expressions.
/**
* Represents the SVG parameters in the SLD Symbolizers.
*
* <p>Currently the implementation is limited to SVG parameters whose values are literals. Non-literal expressions are
* not currently supported.
* </p>
* @author Karel Maesen, Geovise BVBA
* creation-date: 9/2/11
*/
public class SvgParameters {
private final Map<String, String> parameterMap;
//SVG Parameter names
public static final String STROKE = "stroke";
public static final String STROKE_WIDTH = "stroke-width";
public static final String STROKE_OPACITY = "stroke-opacity";
public static final String STROKE_LINEJOIN = "stroke-linejoin";
public static final String STROKE_LINECAP = "stroke-linecap";
public static final String STROKE_DASHARRAY = "stroke-dasharray";
public static final String STROKE_DASHOFFSET = "stroke-dashoffset";
public static final String FILL = "fill";
public static final String FILL_OPACITY = "fill-opacity";
//Defaults (see symboly encoding specs.)
public static final Color DEFAULT_STROKE_COLOR = Color.BLACK;
public static final float DEFAULT_STROKE_WIDTH = 1.0f;
public static final float DEFAULT_STROKE_OPACITY = 1.0f;
public static final int DEFAULT_STROKE_LINEJOIN = BasicStroke.JOIN_MITER;
public static final int DEFAULT_STROKE_LINECAP = BasicStroke.CAP_SQUARE;
public static final float DEFAULT_STROKE_DASHOFFSET = 0.0f;
public static final Color DEFAULT_FILL_COLOR = Color.decode("#808080");
public static final float DEFAULT_FILL_OPACITY = 1.0f;
public static SvgParameters from(List<SvgParameterType> types) {
SvgParameters result = new SvgParameters(types.size());
for (SvgParameterType param : types) {
result.add(param);
}
return result;
}
public static SvgParameters from(Map<String, String> params) {
return new SvgParameters(params);
}
private SvgParameters(Map<String, String> params) {
this.parameterMap = params;
}
private SvgParameters(int size) {
super();
parameterMap = new HashMap<String, String>(size);
}
public void add(SvgParameterType svgParam) {
String value = JAXBHelper.extractValueToString(svgParam.getContent());
parameterMap.put(svgParam.getName().toLowerCase(), value);
}
public boolean isEmpty() {
return parameterMap.isEmpty();
}
public Color getStrokeColor() {
String colorRGB = parameterMap.get(STROKE);
if (colorRGB == null) return DEFAULT_STROKE_COLOR;
return Color.decode(colorRGB);
}
public float getStrokeWidth() {
String strokeWidth = parameterMap.get(STROKE_WIDTH);
if (strokeWidth == null) return DEFAULT_STROKE_WIDTH;
return Float.parseFloat(strokeWidth);
}
public float getStrokeOpacity() {
String str = parameterMap.get(STROKE_OPACITY);
if (str == null) return DEFAULT_STROKE_OPACITY;
return Float.parseFloat(str);
}
/**
* Returns the line join style.
*
* @return the line join style as one of the static int members of <code>BasicStroke</code>
*/
public int getStrokeLinejoin() {
String str = parameterMap.get(STROKE_LINEJOIN);
if (str == null) return DEFAULT_STROKE_LINEJOIN;
if (str.equalsIgnoreCase("mitre")) return BasicStroke.JOIN_MITER;
if (str.equalsIgnoreCase("round")) return BasicStroke.JOIN_ROUND;
if (str.equalsIgnoreCase("bevel")) return BasicStroke.JOIN_BEVEL;
throw new IllegalArgumentException(String.format("Can't map %s to a line join.", str));
}
/**
* Returns the line cap style.
*
* @return the line cap style as one of the static int members of <code>BasicStroke</code>
*/
public int getStrokeLinecap() {
String str = parameterMap.get(STROKE_LINECAP);
if (str == null) return DEFAULT_STROKE_LINECAP;
if (str.equalsIgnoreCase("butt")) return BasicStroke.CAP_BUTT;
if (str.equalsIgnoreCase("round")) return BasicStroke.CAP_ROUND;
if (str.equalsIgnoreCase("square")) return BasicStroke.CAP_SQUARE;
throw new IllegalArgumentException(String.format("Can't map %s to a line cap.", str));
}
public float[] getStrokeDasharray() {
String str = parameterMap.get(STROKE_DASHARRAY);
if (str == null) return null;
//If an odd number of values is given, then the
//pattern is repeated twice to create the dasharray.
String[] dashStr = str.trim().split("\\s");
int dashArLength = (dashStr.length % 2 == 0) ? dashStr.length : 2*dashStr.length;
float[] dash = new float[dashArLength];
for (int i = 0; i < dashArLength; i++) {
dash[i] = Float.parseFloat(dashStr[i % dashStr.length]);
}
return dash;
}
public float getStrokeDashoffset() {
String str = parameterMap.get(STROKE_DASHOFFSET);
if (str == null) return DEFAULT_STROKE_DASHOFFSET;
return Float.parseFloat(str);
}
public Color getFillColor() {
String str = parameterMap.get(FILL);
if (str == null) return DEFAULT_FILL_COLOR;
return Color.decode(str);
}
public float getFillOpacity() {
String str = parameterMap.get(FILL_OPACITY);
if (str == null) return DEFAULT_FILL_OPACITY;
return Float.parseFloat(str);
}
}