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
<?php
/*
Question2Answer by Gideon Greenspan and contributors
http://www.question2answer.org/
File: qa-plugin/tag-cloud-widget/qa-tag-cloud.php
Description: Widget module class for tag cloud plugin
This program 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.
This program 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.
More about this license: http://www.question2answer.org/license.php
*/
class qa_tag_cloud
{
public function option_default($option)
{
if ($option === 'tag_cloud_count_tags')
return 100;
if ($option === 'tag_cloud_font_size')
return 24;
if ($option === 'tag_cloud_minimal_font_size')
return 8;
if ($option === 'tag_cloud_size_popular')
return true;
}
public function admin_form()
{
$saved = qa_clicked('tag_cloud_save_button');
if ($saved) {
qa_opt('tag_cloud_count_tags', (int) qa_post_text('tag_cloud_count_tags_field'));
qa_opt('tag_cloud_font_size', (int) qa_post_text('tag_cloud_font_size_field'));
qa_opt('tag_cloud_minimal_font_size', (int) qa_post_text('tag_cloud_minimal_font_size_field'));
qa_opt('tag_cloud_size_popular', (int) qa_post_text('tag_cloud_size_popular_field'));
}
return array(
'ok' => $saved ? 'Tag cloud settings saved' : null,
'fields' => array(
array(
'label' => 'Maximum tags to show:',
'type' => 'number',
'value' => (int) qa_opt('tag_cloud_count_tags'),
'suffix' => 'tags',
'tags' => 'name="tag_cloud_count_tags_field"',
),
array(
'label' => 'Biggest font size:',
'suffix' => 'pixels',
'type' => 'number',
'value' => (int) qa_opt('tag_cloud_font_size'),
'tags' => 'name="tag_cloud_font_size_field"',
),
array(
'label' => 'Smallest allowed font size:',
'suffix' => 'pixels',
'type' => 'number',
'value' => (int) qa_opt('tag_cloud_minimal_font_size'),
'tags' => 'name="tag_cloud_minimal_font_size_field"',
),
array(
'label' => 'Font size represents tag popularity',
'type' => 'checkbox',
'value' => qa_opt('tag_cloud_size_popular'),
'tags' => 'name="tag_cloud_size_popular_field"',
),
),
'buttons' => array(
array(
'label' => 'Save Changes',
'tags' => 'name="tag_cloud_save_button"',
),
),
);
}
public function allow_template($template)
{
$allowed = array(
'activity', 'qa', 'questions', 'hot', 'ask', 'categories', 'question',
'tag', 'tags', 'unanswered', 'user', 'users', 'search', 'admin', 'custom',
);
return in_array($template, $allowed);
}
public function allow_region($region)
{
return ($region === 'side');
}
public function output_widget($region, $place, $themeobject, $template, $request, $qa_content)
{
require_once QA_INCLUDE_DIR.'db/selects.php';
$populartags = qa_db_single_select(qa_db_popular_tags_selectspec(0, (int) qa_opt('tag_cloud_count_tags')));
$maxcount = reset($populartags);
$themeobject->output(sprintf('<h2 style="margin-top: 0; padding-top: 0;">%s</h2>', qa_lang_html('main/popular_tags')));
$themeobject->output('<div style="font-size: 10px;">');
$maxsize = qa_opt('tag_cloud_font_size');
$minsize = qa_opt('tag_cloud_minimal_font_size');
$scale = qa_opt('tag_cloud_size_popular');
$blockwordspreg = qa_get_block_words_preg();
foreach ($populartags as $tag => $count) {
$matches = qa_block_words_match_all($tag, $blockwordspreg);
if (empty($matches)) {
if ($scale) {
$size = number_format($maxsize * $count / $maxcount, 1);
if ($size < $minsize)
$size = $minsize;
} else
$size = $maxsize;
$themeobject->output(sprintf('<a href="%s" style="font-size: %dpx; vertical-align: baseline;">%s</a>', qa_path_html('tag/' . $tag), $size, qa_html($tag)));
}
}
$themeobject->output('</div>');
}
}