1 <?php
2 /*
3 * This code is part of GOsa (http://www.gosa-project.org)
4 * Copyright (C) 2003-2008 GONICUS GmbH
5 *
6 * ID: $$Id$$
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 */
23 session_cache_limiter("private");
25 /* Check for parameter completenes */
26 if (!isset($_GET['x']) || !isset($_GET['y']) || !isset($_GET['p'])){
27 die ("Missing parameters!");
28 }
29 if (!is_numeric($_GET['x']) || !is_numeric($_GET['y'])){
30 die ("Parameters must be numeric!");
31 }
33 $p= (int)($_GET['p']);
34 $x= (int)($_GET['x']);
35 $y= (int)($_GET['y']);
37 /* Check percentage */
38 if ($p < 0){
39 $p= 0;
40 } elseif ($p > 100){
41 $p= 100;
42 }
43 $p= intval ($p);
45 /* Check dimensions */
46 if ($x < 3 || $x > 1000){
47 $x= 180;
48 }
49 if ($y < 3 || $y > 700){
50 $y= 20;
51 }
53 if(!function_exists("imagecreate")){
54 syslog(LOG_ERR, "GOsa is missing the gd library, please install php5-gd to be able to see progress images.");
55 echo "Please install the php5-gd library, GOsa can't create images without it.";
56 exit();
57 }else{
59 $x_matches= FALSE;
60 $y_matches= FALSE;
61 foreach (array(7,6,5,4,3,2,1,0) as $font){
62 $fx= ImageFontWidth($font) * strlen("$p%");
63 $fy= ImageFontHeight($font);
65 /* Look if font size matches image size */
66 if ($fx < ($x-2)){
67 $x_matches= TRUE;
68 }
69 if ($fy < ($y-2)){
70 $y_matches= TRUE;
71 }
72 if ($x_matches && $y_matches){
73 break;
74 }
75 }
77 /* Draw image in GD image stream */
78 $im = imagecreate ($x, $y)
79 or die ("Cannot Initialize new GD image stream");
81 /* Set colors */
82 $bg_color= imagecolorallocate ($im, 255, 255, 255);
83 $br_color= imagecolorallocate ($im, 0,0,0);
84 $fi_color= imagecolorallocate ($im, 0,0,180);
85 $tx_color= imagecolorallocate ($im, 240, 10, 90);
87 /* Draw progress bar */
88 imagerectangle ($im, 0, 0, $x-1, $y-1, $br_color);
89 imagefilledrectangle ($im, 1, 1, (($x - 2) * $p / 100),
90 $y - 2, $fi_color);
92 /* Is font to big for progress bar? */
93 if ($font != 0){
94 imagestring ($im, $font, ($x - $fx) / 2, ($y - $fy) / 2, "$p%", $tx_color);
95 }
97 /* Finally draw the image and remove context */
98 header ("Content-type: image/png");
99 imagepng ($im);
100 imagedestroy ($im);
101 }
102 ?>