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 /* Check for parameter completenes */
24 if (!isset($_GET['x']) || !isset($_GET['y']) || !isset($_GET['p'])){
25 die ("Missing parameters!");
26 }
27 if (!is_numeric($_GET['x']) || !is_numeric($_GET['y'])){
28 die ("Parameters must be numeric!");
29 }
31 $p= (int)($_GET['p']);
32 $x= (int)($_GET['x']);
33 $y= (int)($_GET['y']);
35 /* Check percentage */
36 if ($p < 0){
37 $p= 0;
38 } elseif ($p > 100){
39 $p= 100;
40 }
41 $p= intval ($p);
43 /* Check dimensions */
44 if ($x < 3 || $x > 1000){
45 $x= 180;
46 }
47 if ($y < 3 || $y > 700){
48 $y= 20;
49 }
51 $x_matches= FALSE;
52 $y_matches= FALSE;
53 foreach (array(7,6,5,4,3,2,1,0) as $font){
54 $fx= ImageFontWidth($font) * strlen("$p%");
55 $fy= ImageFontHeight($font);
57 /* Look if font size matches image size */
58 if ($fx < ($x-2)){
59 $x_matches= TRUE;
60 }
61 if ($fy < ($y-2)){
62 $y_matches= TRUE;
63 }
64 if ($x_matches && $y_matches){
65 break;
66 }
67 }
69 /* Draw image in GD image stream */
70 $im = @imagecreate ($x, $y)
71 or die ("Cannot Initialize new GD image stream");
73 /* Set colors */
74 $bg_color= imagecolorallocate ($im, 255, 255, 255);
75 $br_color= imagecolorallocate ($im, 0,0,0);
76 $fi_color= imagecolorallocate ($im, 0,0,180);
77 $tx_color= imagecolorallocate ($im, 240, 10, 90);
79 /* Draw progress bar */
80 imagerectangle ($im, 0, 0, $x-1, $y-1, $br_color);
81 imagefilledrectangle ($im, 1, 1, (($x - 2) * $p / 100),
82 $y - 2, $fi_color);
84 /* Is font to big for progress bar? */
85 if ($font != 0){
86 imagestring ($im, $font, ($x - $fx) / 2, ($y - $fy) / 2, "$p%", $tx_color);
87 }
89 /* Finally draw the image and remove context */
90 header ("Content-type: image/png");
91 imagepng ($im);
92 imagedestroy ($im);
93 ?>