<?php
/**
 * Rounded PHP, Rounded corners made easy.
 *
 * rounded.php
 *
 * PHP version 5, GD version 2
 *
 * Copyright (C) 2008 Tree Fort LLC
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 * 
 * @category	Rounded PHP
 * @package		<none>
 * @author		Nevada Kent <hide@address.com>
 * @version		1.1
 * @link		http://dev.kingthief.com
 * @link		http://dev.kingthief.com/demos/roundedphp
 * @link		http://www.sourceforge.net/projects/roundedphp
 */

define('ROUNDED_DEBUG', false);

# Required classes
require_once 'Rounded/Color.php';
require_once 'Rounded/Corner.php';
require_once 'Rounded/Rectangle.php';
require_once 'Rounded/Side.php';

if (isset($_GET['params'])) {
	$params = preg_replace(array('/^[\/]+/', '/[\/]+$/'), '', $_GET['params']);
	$vars = array();
	$params = explode('/', $params);
	foreach ($params as $param) {
		$a = explode('_', $param);
		$vars[$a[0]] = $a[1];
	}
	extract($vars);
} else
	extract($_GET);

# Options =
#  - Shape: 'c' (or 'corner'), 'r' (or 'rectangle'), 's' (or 'side')
#  - Radius: (integer >= 0)
#  - Width: (integer >= 2)
#  - Height: (integer >= 2)
#  - Border Width: (integer >= 0)
#  - Foreground Color: (hex code - 3 or 6 char)
#  - Background Color: (hex code - 3 or 6 char)
#  - Border Color: (hex code - 3 or 6 char)
#  - Orientation: 'tl' (or 'lt'), 'tr' (or 'rt'), 'bl' (or 'lb'), 'br' (or 'rb')
#  - Side: 't', 'top', 'l', 'left', 'b', 'bottom', 'r', 'right'
#  - Antialias: 1, 0
#  - Format: 'png', 'gif', 'jpg' (or 'jpeg')
#  - Background Opacity: (0 <= integer <= 100)
#  - Border Opacity: (0 <= integer <= 100)
#  - Foreground Opacity: (0 <= integer <= 100)
#  - Transparent Color: (hex code - 3 or 6 char)

$shape = isset($shape) ? strval($shape) : (isset($sh) ? strval($sh) : 'c');
$radius = isset($radius) ? intval($radius) : (isset($r) ? intval($r) : 10);
$width = isset($width) ? intval($width) : (isset($w) ? intval($w) : 100);
$height = isset($height) ? intval($height) : (isset($h) ? intval($h) : 100);
$foregroundcolor = isset($foregroundcolor) ? strval($foregroundcolor) : (isset($fgc) ? strval($fgc) : 'CCCCCC');
$backgroundcolor = isset($backgroundcolor) ? strval($backgroundcolor) : (isset($bgc) ? strval($bgc) : 'FFFFFF');
$bordercolor = isset($bordercolor) ? strval($bordercolor) : (isset($bc) ? strval($bc) : '000000');
$borderwidth = isset($borderwidth) ? intval($borderwidth) : (isset($bw) ? intval($bw) : 0);
$orientation = isset($orientation) ? strval($orientation) : (isset($o) ? strval($o) : 'tl');
$side = isset($side) ? strval($side) : (isset($si) ? strval($si) : 'top');
$antialias = isset($antialias) ? (bool) intval($antialias) : (isset($aa) ? (bool) intval($aa) : true);
$format = isset($format) ? strval($format) : (isset($f) ? strval($f) : 'png');
$backgroundopacity = isset($backgroundopacity) ? intval($backgroundopacity) : (isset($bgo) ? intval($bgo) : 100);
$borderopacity = isset($borderopacity) ? intval($borderopacity) : (isset($bo) ? intval($bo) : 100);
$foregroundopacity = isset($foregroundopacity) ? intval($foregroundopacity) : (isset($fgo) ? intval($fgo) : 100);
$transparentcolor = isset($transparentcolor) ? strval($transparentcolor) : (isset($tc) ? strval($tc) : NULL);

switch (strtolower($format)) {
	case 'jpg' :
	case 'jpeg' :
		$transparentcolor = NULL;
	case 'gif' :
		$backgroundopacity = 100;
		$borderopacity = 100;
		$foregroundopacity = 100;
		break;
	case 'png' :
		$transparentcolor = NULL;
		break;
}

$params = array(
	'radius'			=> $radius,
	'width'				=> $width,
	'height'			=> $height,
	'borderwidth'		=> $borderwidth,
	'orientation'		=> $orientation,
	'side'				=> $side,
	'antialias'			=> $antialias,
	'colors'			=> array(
		'foreground'	=> new Color($foregroundcolor, $foregroundopacity / 100),
		'border'		=> new Color($bordercolor, $borderopacity / 100),
		'background'	=> new Color($backgroundcolor, $backgroundopacity / 100)
	)
);

switch (strtolower($shape)) {
	case 'r' :
	case 'rect' :
	case 'rectangle' :
		$img = Rectangle::create($params);
		break;
	case 's' :
	case 'side' :
		$img = Side::create($params);
		break;
	case 'c' :
	case 'corner' :
	default :
		$img = Corner::create($params);
		break;
}

imagesavealpha($img, true);

if (!is_null($transparentcolor) && $transparentcolor) {
	$color = new Color($transparentcolor);
	imagecolortransparent($img, $color->getColorResource($img));
}


if (!ROUNDED_DEBUG) {
	header('Cache-Control: max-age=3600, must-revalidate');
	header('Pragma: cache');
	
	switch (strtolower($format)) {
		case 'jpg' :
		case 'jpeg' :
			header('Content-Type: image/jpeg');
			imagejpeg($img, '', 100);
			break;
		case 'gif' :
			header('Content-Type: image/gif');
			imagegif($img);
			break;
		case 'png' :
		default :
			header('Content-Type: image/png');
			imagepng($img);
			break;
	}
}
?>