mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-11-08 09:04:53 +01:00
74 lines
2.2 KiB
PHP
74 lines
2.2 KiB
PHP
<?php
|
|
/**
|
|
* eGroupWare Calendar: rounded corners
|
|
*
|
|
* @link http://www.egroupware.org
|
|
* @author Ralf Becker <RalfBecker-AT-outdoor-training.de>
|
|
* @package calendar
|
|
* @copyright (c) 2004-9 by Ralf Becker <RalfBecker-AT-outdoor-training.de>
|
|
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
|
|
* @version $Id$
|
|
*/
|
|
|
|
include_once('../../phpgwapi/inc/common_functions.inc.php');
|
|
check_load_extension('gd',true); // true = throw exception if not loadable
|
|
|
|
foreach(array('width'=>-20,'height'=>40,'border'=>1,'color'=>'000080','bgcolor'=>'0000FF') as $name => $default)
|
|
{
|
|
$$name = isset($_GET[$name]) ? $_GET[$name] : $default;
|
|
}
|
|
|
|
$image = @imagecreate(abs($width),abs($height))
|
|
or die("Cannot Initialize new GD image stream");
|
|
|
|
$white = imagecolorallocate($image, 254, 254, 254);
|
|
imagecolortransparent($image, $white);
|
|
|
|
foreach(array('color','bgcolor') as $name)
|
|
{
|
|
preg_match('/^#?([0-9A-Fa-f]{2})([0-9A-Fa-f]{2})([0-9A-Fa-f]{2})$/',$$name,$rgb) or
|
|
die("Wrong value '".htmlspecialchars($$name)."' for $name, should be something like #80FFFF' !!!");
|
|
|
|
$$name = imagecolorallocate($image,hexdec($rgb[1]),hexdec($rgb[2]),hexdec($rgb[3]));
|
|
}
|
|
$radius = min(abs($width),abs($height));
|
|
$center_x = $width > 0 ? abs($width)-$radius-1 : $radius;
|
|
$center_y = $height < 0 ? abs($height)-$radius-1 : $radius;
|
|
//echo "width=$width, height=$height => radius=$radius: center_x=$center_x, center_y=$center_y";
|
|
if ($border) imagefilledellipse($image,$center_x,$center_y,2*$radius,2*$radius,$color);
|
|
imagefilledellipse($image,$center_x,$center_y,2*($radius-$border),2*($radius-$border),$bgcolor);
|
|
|
|
if (abs($height) > abs($width))
|
|
{
|
|
if ($height < 0) // lower corners
|
|
{
|
|
$y1 = 0;
|
|
$y2 = abs($height)-$radius-1;
|
|
}
|
|
else
|
|
{
|
|
$y1 = $radius;
|
|
$y2 = abs($height)-1;
|
|
}
|
|
imagefilledrectangle($image,0,$y1,abs($width),$y2,$bgcolor);
|
|
if ($border)
|
|
{
|
|
$x1 = $width < 0 ? 0 : abs($width)-$border;
|
|
$x2 = $width < 0 ? $border-1 : abs($width)-1;
|
|
imagefilledrectangle($image,$x1,$y1,$x2,$y2,$color);
|
|
}
|
|
}
|
|
|
|
session_cache_limiter('public'); // allow caching
|
|
if (function_exists('imagegif'))
|
|
{
|
|
header("Content-type: image/gif");
|
|
imagegif($image);
|
|
}
|
|
else
|
|
{
|
|
header("Content-type: image/png");
|
|
imagepng($image);
|
|
}
|
|
imagedestroy($image);
|