1 <?php
2 /*
3 This code is part of GOsa (https://gosa.gonicus.de)
4 Copyright (C) 2003 Cajus Pollmeier
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
21 /* Check for parameter completenes */
22 if (!isset($_GET['x']) || !isset($_GET['y']) || !isset($_GET['p'])){
23 die ("Missing parameters!");
24 }
25 if (!is_numeric($_GET['x']) || !is_numeric($_GET['y'])){
26 die ("Parameters must be numeric!");
27 }
29 $p= (int)($_GET['p']);
30 $x= (int)($_GET['x']);
31 $y= (int)($_GET['y']);
33 /* Check percentage */
34 if ($p < 0){
35 $p= 0;
36 } elseif ($p > 100){
37 $p= 100;
38 }
39 $p= intval ($p);
41 /* Check dimensions */
42 if ($x < 3 || $x > 1000){
43 $x= 180;
44 }
45 if ($y < 3 || $y > 700){
46 $y= 20;
47 }
49 $x_matches= FALSE;
50 $y_matches= FALSE;
51 foreach (array(7,6,5,4,3,2,1,0) as $font){
52 $fx= ImageFontWidth($font) * strlen("$p%");
53 $fy= ImageFontHeight($font);
55 /* Look if font size matches image size */
56 if ($fx < ($x-2)){
57 $x_matches= TRUE;
58 }
59 if ($fy < ($y-2)){
60 $y_matches= TRUE;
61 }
62 if ($x_matches && $y_matches){
63 break;
64 }
65 }
67 /* Draw image in GD image stream */
68 $im = @imagecreate ($x, $y)
69 or die ("Cannot Initialize new GD image stream");
71 /* Set colors */
72 $bg_color= imagecolorallocate ($im, 255, 255, 255);
73 $br_color= imagecolorallocate ($im, 0,0,0);
74 $fi_color= imagecolorallocate ($im, 0,0,180);
75 $tx_color= imagecolorallocate ($im, 240, 10, 90);
77 /* Draw progress bar */
78 imagerectangle ($im, 0, 0, $x-1, $y-1, $br_color);
79 imagefilledrectangle ($im, 1, 1, (($x - 2) * $p / 100),
80 $y - 2, $fi_color);
82 /* Is font to big for progress bar? */
83 if ($font != 0){
84 imagestring ($im, $font, ($x - $fx) / 2, ($y - $fy) / 2, "$p%", $tx_color);
85 }
87 /* Finally draw the image and remove context */
88 header ("Content-type: image/png");
89 imagepng ($im);
90 imagedestroy ($im);
91 ?>