1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
|
<?php // -*-php-*-
rcs_id('$Id: text2png.php,v 1.13 2004/02/17 12:11:36 rurban Exp $');
/*
Copyright 1999, 2000, 2001, 2002 $ThePhpWikiProgrammingTeam
This file is part of PhpWiki.
PhpWiki 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.
PhpWiki 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 PhpWiki; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/**
* File loading and saving diagnostic messages, to see whether an
* image was saved to or loaded from the cache and what the path is
*
* PHP must be compiled with support for the GD library version 1.6 or
* later to create PNG image files:
*
* ./configure --with-gd
*
* See <http://www.php.net/manual/pl/ref.image.php> for more info.
*/
define('text2png_debug', true);
class WikiPlugin_text2png
extends WikiPlugin
{
function getName () {
return "text2png";
}
function getDescription() {
return _("Convert text into a png image using GD.");
}
function getVersion() {
return preg_replace("/[Revision: $]/", '',
"\$Revision: 1.13 $");
}
function getDefaultArguments() {
global $LANG;
return array('text' => "Hello WikiWorld!",
'l' => $LANG );
}
function run($dbi, $argstr, &$request, $basepage) {
if (ImageTypes() & IMG_PNG) {
// we have gd & png so go ahead.
extract($this->getArgs($argstr, $request));
return $this->text2png($text,$l);
} else {
// we don't have png and/or gd.
$error_html = _("Sorry, this version of PHP cannot create PNG image files.");
$link = "http://www.php.net/manual/pl/ref.image.php";
$error_html .= sprintf(_("See %s"), $link) .".";
trigger_error($error_html, E_USER_NOTICE);
return;
}
}
function text2png($text, $l) {
/**
* Basic image creation and caching
*
* You MUST delete the image cache yourself in /images if you
* change the drawing routines!
*/
$filename = $text . ".png";
/**
* FIXME: need something more elegant, and a way to gettext a
* different language depending on any individual
* user's locale preferences.
*/
if ($l == "C") {
$l = "en";
} //english=C
$filepath = getcwd() . "/images/$l";
if (!file_exists($filepath ."/". $filename)) {
if (!file_exists($filepath)) {
$oldumask = umask(0);
// permissions affected by user the www server is running as
mkdir($filepath, 0777);
umask($oldumask);
}
// add trailing slash to save some keystrokes later
$filepath .= "/";
/**
* prepare a new image
*
* FIXME: needs a dynamic image size depending on text
* width and height
*/
$im = @ImageCreate(150, 50);
if (empty($im)) {
$error_html = _("PHP was unable to create a new GD image stream. Read 'lib/plugin/text2png.php' for details.");
// FIXME: Error manager does not transform URLs passed
// through it.
$link = "http://www.php.net/manual/en/function.imagecreate.php";
$error_html .= sprintf(_("See %s"), $link) .".";
trigger_error( $error_html, E_USER_NOTICE );
return;
}
// get ready to draw
$bg_color = ImageColorAllocate($im, 255, 255, 255);
$ttfont = "/System/Library/Frameworks/JavaVM.framework/Versions/1.3.1/Home/lib/fonts/LucidaSansRegular.ttf";
/* http://download.php.net/manual/en/function.imagettftext.php
* array imagettftext (int im, int size, int angle, int x, int y,
* int col, string fontfile, string text)
*/
// draw shadow
$text_color = ImageColorAllocate($im, 175, 175, 175);
// shadow is 1 pixel down and 2 pixels right
ImageTTFText($im, 10, 0, 12, 31, $text_color, $ttfont, $text);
// draw text
$text_color = ImageColorAllocate($im, 0, 0, 0);
ImageTTFText($im, 10, 0, 10, 30, $text_color, $ttfont, $text);
/**
* An alternate text drawing method in case ImageTTFText
* doesn't work.
**/
//ImageString($im, 2, 10, 40, $text, $text_color);
// To dump directly to browser:
//header("Content-type: image/png");
//ImagePng($im);
// to save to file:
$success = ImagePng($im, $filepath . $filename);
} else {
$filepath .= "/";
$success = 2;
}
// create an <img src= tag to show the image!
$html = HTML();
if ($success > 0) {
if (defined('text2png_debug')) {
switch($success) {
case 1:
trigger_error(sprintf(_("Image saved to cache file: %s"),
$filepath . $filename),
E_USER_NOTICE);
case 2:
trigger_error(sprintf(_("Image loaded from cache file: %s"),
$filepath . $filename),
E_USER_NOTICE);
}
}
$url = "images/$l/$filename";
if (defined('DATA_PATH'))
$url = DATA_PATH . "/$url";
$html->pushContent(HTML::img(array('src' => $url,
'alt' => $text)));
} else {
trigger_error(sprintf(_("couldn't open file '%s' for writing"),
$filepath . $filename), E_USER_NOTICE);
}
return $html;
}
};
// $Log: text2png.php,v $
// Revision 1.13 2004/02/17 12:11:36 rurban
// added missing 4th basepage arg at plugin->run() to almost all plugins. This caused no harm so far, because it was silently dropped on normal usage. However on plugin internal ->run invocations it failed. (InterWikiSearch, IncludeSiteMap, ...)
//
// Revision 1.12 2003/02/22 19:21:47 dairiki
// If DATA_PATH is not defined (by user in index.php), then use
// relative URLs to data.
//
// Revision 1.11 2003/01/18 22:08:01 carstenklapp
// Code cleanup:
// Reformatting & tabs to spaces;
// Added copyleft, getVersion, getDescription, rcs_id.
//
// For emacs users
// Local Variables:
// mode: php
// tab-width: 4
// c-basic-offset: 4
// c-hanging-comment-ender-p: nil
// indent-tabs-mode: nil
// End:
?>
|
