<?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.
*/

require_once("parser/Parser.php");

$requestData = '';
if (isset($_SERVER['CONTENT_LENGTH']) && $_SERVER['CONTENT_LENGTH'] > 0) {
	$httpContent = fopen('php://input', 'r');
	while ($data = fread($httpContent, 1024)) {
		$requestData .= $data;
	}
	fclose($httpContent);
}

if ($requestData == '')
	exit;

$parser = new Parser();
$svg = $parser->parse($requestData);

//first, create javascript objects for all the gradients
$linearGradients = $svg->getCompleteLinearGradients();
$radialGradients = $svg->getCompleteRadialGradients();
$paths = $svg->getPaths();
$rects = $svg->getRectangles();
$circles = $svg->getCircles();
$ellipses = $svg->getEllipses();
$lines = $svg->getLines();
$polylines = $svg->getPolylines();
$texts = $svg->getTexts();

echo "/*
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.
*/\n\n";
echo "//set 'g' equal to the dojo group you want to add this drawing as...\n//ex. var g = surface.createGroup()\n\n";

//echo all the linear gradients
foreach ($linearGradients as $gradient) {
	//make sure the gradient has its transform(s) applied
	if (!$gradient->transformsApplied())
		$gradient->applyTransforms();
	
	echo "var gradient".$gradient->getId()." = {\n";
	echo "\ttype: \"linear\",\n";
	echo "\tx1: ".$gradient->getX1().", y1: ".$gradient->getY1().",\n";
	echo "\tx2: ".$gradient->getX2().", y2: ".$gradient->getY2().",\n";
	echo "\tcolors: [\n";
	
	$stops = $gradient->getStops();
	for ($i = 0; $i < count($stops)-1; $i++) {
		echo "\t\t{offset: ".$stops[$i]->getOffset().", color: \"".$stops[$i]->getColor()."\"},\n";
	}
	echo "\t\t{offset: ".$stops[count($stops)-1]->getOffset().", color: \"".$stops[count($stops)-1]->getColor()."\"}\n";
	echo "\t]\n";
	echo "};\n";
}

//now, do the same for all the radial gradients
foreach ($radialGradients as $gradient) {
	//make sure the gradient has its transform(s) applied
	if (!$gradient->transformsApplied())
		$gradient->applyTransforms();
		
	echo "var gradient".$gradient->getId()." = {\n";
	echo "\ttype: \"radial\",\n";
	echo "\tcx: ".$gradient->getCx().", cy: ".$gradient->getCy().",\n";
	echo "\tr: ".$gradient->getR().",\n";
	echo "\tfx: ".$gradient->getFx().", fy: ".$gradient->getFy().",\n";
	echo "\tcolors: [\n";
	
	$stops = $gradient->getStops();
	for ($i = 0; $i < count($stops)-1; $i++) {
		echo "\t\t{offset: ".$stops[$i]->getOffset().", color: \"".$stops[$i]->getColor()."\"},\n";
	}
	echo "\t\t{offset: ".$stops[count($stops)-1]->getOffset().", color: \"".$stops[count($stops)-1]->getColor()."\"}\n";
	echo "\t]\n";
	echo "};\n";
}

//now, get all the paths
foreach ($paths as $path) {
	echo "g.createPath({type: \"path\", path: \"".$path->getPath()."\"})";
	addFill($path);
	addStroke($path);
	addTransform($path);
	echo ";\n";
}

//and all rectangles
foreach ($rects as $rect) {
	echo "g.createRect({type: \"rect\", x: ".$rect->getX().", y: ".$rect->getY().", height: ".$rect->getHeight().", width: ".$rect->getWidth().", r: ".$rect->getR()."})";
	addFill($rect);
	addStroke($rect);
	addTransform($rect);

	echo ";\n";
}

//and all circles
foreach ($circles as $circle) {
	echo "g.createCircle({type: \"circle\", cx:".$circle->getCx().", cy:".$circle->getCy().", r: ".$circle->getR()."})";
	addFill($circle);
	addStroke($circle);
	addTransform($circle);

	echo ";\n";
}

//and all ellipses
foreach ($ellipses as $ellipse) {
	echo "g.createEllipse({type: \"ellipse\", cx:".$ellipse->getCx().", cy:".$ellipse->getCy().", rx: ".$ellipse->getRx().", ry: ".$ellipse->getRy()."})";
	addFill($ellipse);
	addStroke($ellipse);
	addTransform($ellipse);

	echo ";\n";
}

//and all lines
foreach ($lines as $line) {
	echo "g.createLine({type: \"line\", x1:".$line->getX1().", y1:".$line->getY1().", x2:".$line->getX2().", y2:".$line->getY2()."})";
	addStroke($line);
	addTransform($line);
	echo ";\n";
}

//and all polylines
foreach ($polylines as $polyline) {
	echo "//TODO - implement polylines\n";
}

//and all texts
foreach ($texts as $text) {
	echo "g.createText({type: \"text\", x: ".$text->getX().", y: ".$text->getY().", text: \"".$text->getText()."\", align: \"".$text->getTextAnchor()."\", decoration: \"".$text->getTextDecoration()."\"})";
	addFill($text);
	addStroke($text);
	addTransform($text);
	echo ";\n";
}

function addFont($shape) {
	$putComma = false;

	//get the font family, if available
	$family = $shape->getStyle("font-family");
	if ($family != null) {
		if ($putComma)
			echo ",";
		else {
			echo ".setFont({";
			$putComma = true;
		}

		echo "family: \"".$family."\"";
	}

	//get the font variant, if available
	$variant = $shape->getStyle("font-variant");
	if ($variant != null) {
		if ($putComma)
			echo ",";
		else {
			echo ".setFont({";
			$putComma = true;
		}

		echo "variant: \"".$variant."\"";
	}

	//get the font size, if available
	$size = $shape->getStyle("font-size");
	if ($size != null) {
		if ($putComma)
			echo ",";
		else {
			echo ".setFont({";
			$putComma = true;
		}

		echo "size: \"".$size."\"";
	}

	//get the font style, if available
	$style = $shape->getStyle("font-style");
	if ($style != null) {
		if ($putComma)
			echo ",";
		else {
			echo ".setFont({";
			$putComma = true;
		}

		echo "style: \"".$style."\"";
	}

	//get the font weight, if available
	$weight = $shape->getStyle("font-weight");
	if ($weight != null) {
		if ($putComma)
			echo ",";
		else {
			echo ".setFont({";
			$putComma = true;
		}

		echo "style: \"".$weight."\"";
	}

	if ($putComma)
		echo "})";
}

function addFill($shape) {
	$fill = $shape->getStyle("fill");
	if ($fill == null)
		return;

	if (ereg("url\(.*\)", $fill)) {
		$parts = split("[\(\)]", $fill);
		$url = trim($parts[1], "#");
		echo ".setFill(gradient".$url.")";
	} else if (ereg("#([0-9a-fA-F]{3}|[0-9a-fA-F]{6})", $fill)) {
		echo ".setFill(\"".$fill."\")";
	}
}

function addStroke($shape) {
	$putComma = false;

	//get the stroke width, if available
	$width = $shape->getStyle("stroke-width");
	if ($width != null) {
		if ($putComma)
			echo ",";
		else {
			echo ".setStroke({";
			$putComma = true;
		}

		$width = trim($width, "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ");
		echo "width: $width";
	}

	//get the stroke color, if available
	$color = $shape->getStyle("stroke");
	if ($color != null) {
		if ($putComma)
			echo ",";
		else {
			echo ".setStroke({";
			$putComma = true;
		}

		echo "color: \"".$color."\"";
	}

	//get the stroke cap, if available
	$cap = $shape->getStyle("stroke-linecap");
	if ($cap != null) {
		if ($putComma)
			echo ",";
		else {
			echo ".setStroke({";
			$putComma = true;
		}

		echo "cap: \"$cap\"";
	}

	//get the line join, if available
	$join = $shape->getStyle("stroke-linejoin");
	if ($join != null) {
		if ($putComma)
			echo ",";
		else {
			echo ".setStroke({";
			$putComma = true;
		}

		if ($join == "miter")
			echo "join: 4";
		else
			echo "join: \"$join\"";
	}

	//if any kind of dash is made in SVG, convert it to 'style: "Dash"' in dojox.gfx
	$style = $shape->getStyle("stroke-dasharray");
	if ($style != null && $style != 'none') {
		if ($putComma)
			echo ",";
		else {
			echo ".setStroke({";
			$putComma = true;
		}

		echo "style: \"Dash\"";
	}

	if ($putComma)
		echo "})";
}

function addTransform($shape) {
	//echo "\n==== transform:";
	//var_dump($shape->getTransform());
	$transform = $shape->getTransform();
	if (!$transform->isIdentity()) {
		echo ".setTransform({xx:".$transform->getXx().", xy:".$transform->getXy().", dx:".$transform->getDx().", yy:".$transform->getYy().", yx:".$transform->getYx().", dy:".$transform->getDy()."})";
	}
}

?>