package net.sf.latexdraw.generators.svg;
import java.awt.geom.Point2D;
import java.util.List;
import net.sf.latexdraw.glib.models.GLibUtilities;
import net.sf.latexdraw.glib.models.ShapeFactory;
import net.sf.latexdraw.glib.models.interfaces.shape.IPoint;
import net.sf.latexdraw.glib.models.interfaces.shape.IRhombus;
import net.sf.latexdraw.glib.views.pst.PSTricksConstants;
import net.sf.latexdraw.parsers.svg.SVGAttributes;
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.SVGPolygonElement;
import net.sf.latexdraw.parsers.svg.parsers.SVGPointsParser;
import net.sf.latexdraw.util.LNamespace;
/**
* Defines an SVG generator for a polygon.<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 LRhombusSVGGenerator extends LShapeSVGGenerator<IRhombus> {
/**
* Creates a generator of SVG rhombus.
* @param rhombus The rhombus used for the generation.
* @throws IllegalArgumentException If the given rhombus is null.
* @since 2.0
*/
protected LRhombusSVGGenerator(final IRhombus rhombus) {
super(rhombus);
}
/**
* Creates a rhombus from a latexdraw-SVG element.
* @param elt The source element.
* @since 2.0.0
*/
protected LRhombusSVGGenerator(final SVGGElement elt, final boolean withTransformation) {
this(ShapeFactory.createRhombus());
final SVGElement elt2 = getLaTeXDrawElement(elt, null);
if(elt==null || !(elt2 instanceof SVGPolygonElement))
throw new IllegalArgumentException();
final SVGPolygonElement main = (SVGPolygonElement)elt2;
setSVGLatexdrawParameters(elt);
setSVGParameters(main);
final List<Point2D> ptsPol = SVGPointsParser.getPoints(elt.getAttribute(
elt.getUsablePrefix(LNamespace.LATEXDRAW_NAMESPACE_URI)+LNamespace.XML_POINTS));
if(ptsPol==null || ptsPol.size()!=4)
throw new IllegalArgumentException();
shape.getPtAt(0).setPoint2D(ptsPol.get(0));
shape.getPtAt(1).setPoint2D(ptsPol.get(1));
shape.getPtAt(2).setPoint2D(ptsPol.get(2));
shape.getPtAt(3).setPoint2D(ptsPol.get(3));
setSVGShadowParameters(getLaTeXDrawElement(elt, LNamespace.XML_TYPE_SHADOW));
setSVGDbleBordersParameters(getLaTeXDrawElement(elt, LNamespace.XML_TYPE_DBLE_BORDERS));
if(withTransformation)
applyTransformations(elt);
}
@Override
public SVGElement toSVG(final SVGDocument doc) {
if(doc==null)
return null;
final IPoint tl = shape.getTopLeftPoint();
final IPoint br = shape.getBottomRightPoint();
final IPoint gc = shape.getGravityCentre();
final IPoint p1 = ShapeFactory.createPoint((tl.getX()+br.getX())/2., tl.getY());
final IPoint p2 = ShapeFactory.createPoint(br.getX(), (tl.getY()+br.getY())/2.);
final IPoint p3 = ShapeFactory.createPoint((tl.getX()+br.getX())/2., br.getY());
final SVGElement root = new SVGGElement(doc);
SVGElement elt;
final double gap = getPositionGap()/2.;
final double cornerGap1 = GLibUtilities.getCornerGap(gc, p1, p2, gap);
double cornerGap2 = GLibUtilities.getCornerGap(gc, p2, p3, gap);
if(p2.getX()<p3.getX())
cornerGap2*=-1;
final String points = String.valueOf(p1.getX()) + ',' + (p1.getY() - cornerGap1) + ' ' + (p2.getX() + cornerGap2) + ',' + p2.getY() + ' ' + p3.getX() + ',' + (p3.getY() + cornerGap1) + ' ' + (tl.getX() - cornerGap2) + ',' + p2.getY();
root.setAttribute(LNamespace.LATEXDRAW_NAMESPACE+':'+LNamespace.XML_TYPE, LNamespace.XML_TYPE_RHOMBUS);
root.setAttribute(SVGAttributes.SVG_ID, getSVGID());
if(shape.hasShadow()) {
elt = new SVGPolygonElement(doc);
elt.setAttribute(SVGAttributes.SVG_POINTS, points);
setSVGShadowAttributes(elt, true);
root.appendChild(elt);
}
if(shape.hasShadow() && !shape.getLineStyle().getLatexToken().equals(PSTricksConstants.LINE_NONE_STYLE)) {
// The background of the borders must be filled is there is a shadow.
elt = new SVGPolygonElement(doc);
elt.setAttribute(SVGAttributes.SVG_POINTS, points);
setSVGBorderBackground(elt, root);
}
elt = new SVGPolygonElement(doc);
elt.setAttribute(SVGAttributes.SVG_POINTS, points);
root.appendChild(elt);
root.setAttribute(LNamespace.LATEXDRAW_NAMESPACE+':'+LNamespace.XML_POINTS, String.valueOf(tl.getX()) + ' ' +
tl.getY() + ' ' + br.getX() + ' ' + tl.getY() + ' ' + tl.getX() + ' ' + br.getY() + ' ' + br.getX() + ' ' + br.getY());
if(shape.hasDbleBord()) {
final SVGElement dblBord = new SVGPolygonElement(doc);
dblBord.setAttribute(SVGAttributes.SVG_POINTS, points);
setSVGDoubleBordersAttributes(dblBord);
root.appendChild(dblBord);
}
setSVGAttributes(doc, elt, true);
setSVGRotationAttribute(root);
return root;
}
}