package net.sf.latexdraw.generators.svg;
import java.text.ParseException;
import java.util.List;
import net.sf.latexdraw.badaboom.BadaboomCollector;
import net.sf.latexdraw.glib.models.ShapeFactory;
import net.sf.latexdraw.glib.models.interfaces.shape.IArrow;
import net.sf.latexdraw.glib.models.interfaces.shape.IPoint;
import net.sf.latexdraw.glib.models.interfaces.shape.IPolyline;
import net.sf.latexdraw.glib.views.pst.PSTricksConstants;
import net.sf.latexdraw.parsers.svg.SVGAttributes;
import net.sf.latexdraw.parsers.svg.SVGDefsElement;
import net.sf.latexdraw.parsers.svg.SVGDocument;
import net.sf.latexdraw.parsers.svg.SVGElement;
import net.sf.latexdraw.parsers.svg.SVGGElement;
import net.sf.latexdraw.parsers.svg.SVGLineElement;
import net.sf.latexdraw.parsers.svg.SVGPathElement;
import net.sf.latexdraw.parsers.svg.SVGPolyLineElement;
import net.sf.latexdraw.util.LNamespace;
/**
* Defines a SVG generator for some joined lines.<br>
*<br>
* This file is part of LaTeXDraw.<br>
* Copyright (c) 2005-2014 Arnaud BLOUIN<br>
*<br>
* LaTeXDraw 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 2 of the License, or
* (at your option) any later version.<br>
*<br>
* LaTeXDraw is distributed 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.<br>
*<br>
* 11/11/07<br>
* @author Arnaud BLOUIN
* @version 3.0
*/
class LPolylinesSVGGenerator extends LModifiablePointsGenerator<IPolyline> {
/**
* Creates a generator for IPolyline.
* @param polyline The source polyline used to generate the SVG element.
*/
protected LPolylinesSVGGenerator(final IPolyline polyline) {
super(polyline);
}
/**
* Creates some lines using a SVG path.
* @param elt The SVG path.
*/
protected LPolylinesSVGGenerator(final SVGPathElement elt) {
super(ShapeFactory.createPolyline());
if(elt==null || !elt.isLines())
throw new IllegalArgumentException();
initModifiablePointsShape(elt);
setSVGParameters(elt);
}
/**
* Creates some joined-lines from an SVG polyline element.
* @param elt The source element.
* @since 2.0.0
*/
protected LPolylinesSVGGenerator(final SVGPolyLineElement elt) {
this(ShapeFactory.createPolyline());
setSVGModifiablePointsParameters(elt);
setSVGParameters(elt);
applyTransformations(elt);
}
/**
* Creates a line from an SVG line element.
* @param elt The source element.
* @since 2.0.0
*/
protected LPolylinesSVGGenerator(final SVGLineElement elt) {
this(ShapeFactory.createPolyline());
setSVGParameters(elt);
applyTransformations(elt);
}
/**
* Creates some joined-lines from a latexdraw-SVG element.
* @param elt The source element.
* @since 2.0.0
*/
protected LPolylinesSVGGenerator(final SVGGElement elt, final boolean withTransformation) {
this(ShapeFactory.createPolyline());
final SVGElement elt2 = getLaTeXDrawElement(elt, null);
if(elt==null || !(elt2 instanceof SVGPolyLineElement) && !(elt2 instanceof SVGLineElement))
throw new IllegalArgumentException();
if(elt2 instanceof SVGPolyLineElement) {
setSVGModifiablePointsParameters((SVGPolyLineElement)elt2);
}else {
final SVGLineElement lineElt = (SVGLineElement)elt2;
shape.addPoint(ShapeFactory.createPoint(lineElt.getX1(), lineElt.getY1()));
shape.addPoint(ShapeFactory.createPoint(lineElt.getX2(), lineElt.getY2()));
}
setSVGParameters(elt2);
setSVGLatexdrawParameters(elt);
setSVGShadowParameters(getLaTeXDrawElement(elt, LNamespace.XML_TYPE_SHADOW));
setSVGDbleBordersParameters(getLaTeXDrawElement(elt, LNamespace.XML_TYPE_DBLE_BORDERS));
final IArrow arrow1 = shape.getArrowAt(0);
final IArrow arrow2 = shape.getArrowAt(-1);
setSVGArrow(arrow1, elt2.getAttribute(elt2.getUsablePrefix()+SVGAttributes.SVG_MARKER_START), elt2, SVGAttributes.SVG_MARKER_START);
setSVGArrow(arrow2, elt2.getAttribute(elt2.getUsablePrefix()+SVGAttributes.SVG_MARKER_END), elt2, SVGAttributes.SVG_MARKER_END);
homogeniseArrows(arrow1, arrow2);
if(withTransformation)
applyTransformations(elt);
}
@Override
public SVGElement toSVG(final SVGDocument doc) {
if(doc==null)
return null;
final SVGElement root = new SVGGElement(doc);
final SVGDefsElement defs = doc.getFirstChild().getDefs();
final StringBuilder points = new StringBuilder();
final List<IPoint> pts = shape.getPoints();
SVGPolyLineElement elt;
root.setAttribute(LNamespace.LATEXDRAW_NAMESPACE + ':' + LNamespace.XML_TYPE, LNamespace.XML_TYPE_JOINED_LINES);
root.setAttribute(SVGAttributes.SVG_ID, getSVGID());
for(final IPoint pt : pts)
points.append(pt.getX()).append(',').append(pt.getY()).append(' ');
final String pointsStr = points.toString();
if(shape.hasShadow()) {
final SVGPolyLineElement shad = new SVGPolyLineElement(doc);
try { shad.setPoints(pointsStr); }catch(final ParseException ex) { BadaboomCollector.INSTANCE.add(ex); }
setSVGShadowAttributes(shad, false);
root.appendChild(shad);
setSVGArrow(shape, shad, 0, true, doc, defs);
setSVGArrow(shape, shad, 1, true, doc, defs);
}
if(shape.hasShadow() && !shape.getLineStyle().getLatexToken().equals(PSTricksConstants.LINE_NONE_STYLE) && shape.isFilled()) {
// The background of the borders must be filled is there is a shadow.
elt = new SVGPolyLineElement(doc);
try { elt.setPoints(pointsStr); }catch(final ParseException ex) { BadaboomCollector.INSTANCE.add(ex); }
setSVGBorderBackground(elt, root);
}
elt = new SVGPolyLineElement(doc);
try { elt.setPoints(pointsStr); }catch(final ParseException ex) { BadaboomCollector.INSTANCE.add(ex); }
root.appendChild(elt);
if(shape.hasDbleBord()) {
final SVGPolyLineElement dblBord = new SVGPolyLineElement(doc);
try { dblBord.setPoints(pointsStr); }catch(final ParseException ex) { BadaboomCollector.INSTANCE.add(ex); }
setSVGDoubleBordersAttributes(dblBord);
root.appendChild(dblBord);
}
setSVGAttributes(doc, elt, false);
elt.setAttribute(LNamespace.LATEXDRAW_NAMESPACE + ':' + LNamespace.XML_ROTATION, String.valueOf(shape.getRotationAngle()));
setSVGArrow(shape, elt, 0, false, doc, defs);
setSVGArrow(shape, elt, shape.getNbArrows()-1, false, doc, defs);
return root;
}
}