aclindsay.com/svgparser/parser/objects/SVG.php

<?php
/*
SVG to dojox.gfx Parser
Copyright (C) 2009  Aaron Lindsay <aclindsay@aclindsay.com>

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 2
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, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
*/

class SVG {
	private $paths;
	private $rects;
	private $circles;
	private $ellipses;
	private $lines;
	private $polylines;
	private $texts;
	private $linearGradients;
	private $radialGradients;
	
	public function __construct() {
		$this->paths = array();
		$this->rects = array();
		$this->circles = array();
		$this->ellipses = array();
		$this->lines = array();
		$this->polylines = array();
		$this->texts = array();
		
		$this->linearGradients = array();
		$this->radialGradients = array();
	}
	
	public function addPath($path) {
		$this->paths[] = $path;
	}
	public function getPaths() {
		return $this->paths;
	}
	
	public function addRectangle($rect) {
		$this->rects[] = $rect;
	}
	public function getRectangles() {
		return $this->rects;
	}
	
	public function addCircle($circle) {
		$this->circles[] = $circle;
	}
	public function getCircles() {
		return $this->circles;
	}
	
	public function addEllipse($ellipse) {
		$this->ellipses[] = $ellipse;
	}
	public function getEllipses() {
		return $this->ellipses;
	}
	
	public function addLine($line) {
		$this->lines[] = $line;
	}
	public function getLines() {
		return $this->lines;
	}
	
	public function addPolyline($polyline) {
		$this->polylines[] = $polyline;
	}
	public function getPolylines() {
		return $this->polylines;
	}

	public function addText($text) {
		$this->texts[] = $text;
	}
	public function getTexts() {
		return $this->texts;
	}
	
	public function addLinearGradient($gradient) {
		$this->linearGradients[] = $gradient;
	}
	public function getLinearGradients() {
		return $this->linearGradients;
	}
	
	public function addRadialGradient($gradient) {
		$this->radialGradients[] = $gradient;
	}
	public function getRadialGradients() {
		return $this->radialGradients;
	}
	
	public function getCompleteLinearGradients() {
		$validGradients = array();
		foreach($this->linearGradients as $gradient) {
			if ($gradient->isValid()) {
				$validGradients[] = $gradient;
			} else if ($gradient->getLink() != null) {
				$newGradient = $this->linkGradient($gradient);
				if ($newGradient->isValid()) {
					$validGradients[] = $newGradient;
				}
			}
		}
		return $validGradients;
	}
	
	public function getCompleteRadialGradients() {
		$validGradients = array();
		foreach($this->radialGradients as $gradient) {
			if ($gradient->isValid()) {
				$validGradients[] = $gradient;
			} else if ($gradient->getLink() != null) {
				$newGradient = $this->linkGradient($gradient);
				if ($newGradient->isValid())
					$validGradients[] = $gradient;
			}
		}
		return $validGradients;
	}
	
	private function linkGradient($gradient) {
		//search through all gradients for one with an id matching the link field
		$link = $gradient->getLink();
		$toLink = null;
		foreach($this->linearGradients as $match) {
			if ($match->getId() == $link) {
				$toLink = $match;
				break;
			}
		}
		if ($toLink != null) {
			$gradient->setStops($toLink->getStops());
		}
		return $gradient;
	}
}
?>