ILWP Colored Tag Cloud plugin, please visit the plugin page. Feel free to leave comments or post feature requests.
* Version: 2.2a
* Author: Steve Johnson
* Author URI: http://ilikewp.com/
*/
/* Copyright 2009-2012 Steve Johnson (email : steve@ilikewp.com)
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.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
define( 'ILWP_CTC_VERSION', '2.2' );
define( 'CTC_DEBUG', false );
function ilwp_tag_cloud( $args = '' ) {
// for those calling the function directly from template,
// add default arguments
$default_colors = array( 'aqua', 'black', 'blue', 'fuchsia',
'gray', 'green', 'lime', 'maroon',
'navy', 'olive', 'purple', 'red',
'silver', 'teal', 'white', 'yellow');
$default['min_size'] = 8;
$default['max_size'] = 40;
$default['number'] = 0;
$default['use_colors'] = 1;
$default['sort'] = 'random';
$default['order'] = 'ASC';
$default['color_names'] = $default_colors;
$args = wp_parse_args( $args, $default );
## if they leave the colors field blank
if ( '' == $args['color_names'][0] )
$args['color_names'] = $default_colors;
// Always query top tags
$tags = get_tags( array('orderby' => 'count', 'order' => 'DESC' ) );
if ( empty( $tags ) || 2 > sizeof( $tags ) || !is_array( $tags ) )
return;
$return = ilwp_generate_tag_cloud( $tags, $args ); // Here's where those top tags get sorted according to $args
if ( is_wp_error( $return ) )
return false;
echo $return;
}
function ilwp_generate_tag_cloud( $tags, $args = '' ) {
global $wp_rewrite;
extract( $args );
// $min_size, $max_size, $number, $color_names, $use_colors, $sort, $order
if ( 'random' == $sort ) {
shuffle($tags);
} else {
// SQL cannot save you; this is a second (potentially different) sort on a subset of data.
if ( 'name' == $sort )
uasort( $tags, create_function('$a, $b', 'return strnatcasecmp($a->name, $b->name);') );
else
uasort( $tags, create_function('$a, $b', 'return ($a->count > $b->count);') );
if ( 'DESC' == $order )
$tags = array_reverse( $tags, true );
}
if ( $number > 0 )
$tags = array_slice( $tags, 0, $number );
$counts = $tag_links = array();
foreach ( $tags as $tag ) {
$counts[ $tag->name ] = $tag->count;
$tag_links[ $tag->name ] = get_tag_link( $tag->term_id );
$tag_ids[ $tag->name ] = $tag->term_id;
}
$min_count = min($counts);
$spread = max($counts) - $min_count;
if ( $spread <= 0 )
$spread = 1;
$font_spread = $max_size - $min_size;
if ( $font_spread <= 0 )
$font_spread = 1;
$font_step = $font_spread / $spread;
$a = array();
$rel = ( is_object($wp_rewrite) && $wp_rewrite->using_permalinks() ) ? ' rel="tag"' : '';
$c = sizeof( $color_names );
foreach ( $counts as $tag => $count ) {
$tag_id = $tag_ids[$tag];
$tag_link = clean_url($tag_links[$tag]);
if ( $use_colors ) :
$color = rand( 0, $c - 1 );
$colorstyle = " color: " . $color_names[$color] . ";";
else :
$colorstyle = "";
endif;
$a[] = "$tag";
}
$cloud = join("\n", $a);
return $cloud;
}
/**
* Version 2.0
* Switches to multi-instance widget via WP_Widget API
*/
// going to change the options for this version to easily
// check for out-of-date plugins, as I neglected to add-in
// a version option
if ( !get_option('widget_ilwp_tag_cloud_version') )
update_option( 'widget_ilwp_tag_cloud_version', '2.0' );
if ( get_option( 'ilwp_widget_tag_cloud' ) )
delete_option( 'ilwp_widget_tag_cloud' );
/**
* ILWPColoredTagCloud Class
*/
class ILWPColoredTagCloud extends WP_Widget {
function ILWPColoredTagCloud() {
$widget_ops = array('classname' => 'ilwp_widget_tag_cloud', 'description' => __( "A really cool COLORED tag cloud") );
$control_ops = array('width' => 400, 'height' => 350);
$this->WP_Widget( 'ilwp_tag_cloud', __('ILWP Colored Tag Cloud'), $widget_ops, $control_ops );
}
/** @see WP_Widget::widget */
function widget( $args, $instance ) {
extract( $args );
$title = ( $instance['title'] ) ? apply_filters( 'widget_title', $instance['title'] ) : __('Tags') ;
echo $before_widget;
echo $before_title . $title . $after_title;
ilwp_tag_cloud( $instance );
echo $after_widget . "\n\n";
}
/** @see WP_Widget::update */
function update( $new_instance, $old_instance ) {
$instance = $old_instance;
$instance['title'] = strip_tags($new_instance['title']);
$instance['number'] = ( 0 == $new_instance['number'] ) ? 0 : intval( $new_instance['number'] );
$instance['min_size'] = ( $new_instance['min_size'] > 10 ) ? 10 : intval( $new_instance['min_size'] );
$instance['max_size'] = ( $new_instance['max_size'] > 40 && $instance['min_size'] < $new_instance['max_size'] ) ? 40 : intval( $new_instance['max_size'] );
if ( $instance['max_size'] < $instance['min_size'] + 2 )
$instance['max_size'] = intval( $instance['min_size'] + 2 );
$instance['use_colors'] = $new_instance['use_colors'];
$instance['sort'] = $new_instance['sort'];
$instance['order'] = $new_instance['order'];
## get color names/numbers into an array
$str = $new_instance['color_names'];
## replace commas with spaces
$str = str_replace( ',', ' ', $str );
## replace spaces with pipes
$str = preg_replace('/\s+/', '|', $str);
$str = trim( $str, "|" );
$newcolors = explode( '|', $str );
$instance['color_names'] = $newcolors;
return $instance;
}
/** @see WP_Widget::form */
function form( $instance ) {
$default_colors = array( 'aqua', 'black', 'blue', 'fuchsia',
'gray', 'green', 'lime', 'maroon',
'navy', 'olive', 'purple', 'red',
'silver', 'teal', 'white', 'yellow');
$default['color_names'] = $default_colors;
$default['min_size'] = 8;
$default['max_size'] = 40;
$default['use_colors'] = 1;
$default['number'] = 0;
$default['sort'] = 'random';
$default['order'] = 'ASC';
if ( CTC_DEBUG )
print_r( $default );
$instance = wp_parse_args( $instance, $default );
if ( CTC_DEBUG )
print_r( $instance );
extract( $instance );
$title = esc_attr( $instance['title']);
$colors = implode( $instance['color_names'], "\r\n" );
?>
Sort direction?