From 91dcc787964671e3e32212214fc1568393c0eb03 Mon Sep 17 00:00:00 2001
From: Thomas Keller <me@thomaskeller.biz>
Date: Tue, 27 Dec 2011 03:34:53 +0100
Subject: [PATCH] Render tags that are set on many projects larger and tags
 that are set on only few projects smaller.

---
 src/IDF/Forge.php                       | 6 ++++++
 src/IDF/templates/idf/listProjects.html | 7 ++++++-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/IDF/Forge.php b/src/IDF/Forge.php
index 832323d..df199a0 100644
--- a/src/IDF/Forge.php
+++ b/src/IDF/Forge.php
@@ -60,12 +60,18 @@ class IDF_Forge
             'order' => 'class ASC, lcname ASC'
         ));
 
+        $maxProjectCount = 0;
+        foreach ($tagList as $tag) {
+            $maxProjectCount = max($maxProjectCount, $tag->project_count);
+        }
+
         $tags = array();
         foreach ($tagList as $tag) {
             // group by class
             if (!array_key_exists($tag->class, $tags)) {
                 $tags[$tag->class] = array();
             }
+            $tag->rel_project_count = $tag->project_count / (double) $maxProjectCount;
             $tags[$tag->class][] = $tag;
         }
         return $tags;
diff --git a/src/IDF/templates/idf/listProjects.html b/src/IDF/templates/idf/listProjects.html
index aa340e6..6359e1e 100644
--- a/src/IDF/templates/idf/listProjects.html
+++ b/src/IDF/templates/idf/listProjects.html
@@ -19,7 +19,12 @@
     <dl class="tagscloud smaller">{foreach $projectLabels as $class => $labels}
         <dt class="label">{$class}</dt>
         {foreach $labels as $idx => $label}
-            <dd><a href="{url 'IDF_Views::listProjectsByLabel', array($label->id, $order)}" class="label" title="{blocktrans $label.project_count}1 project{plural}{$label.project_count} projects{/blocktrans}">{$label.name}{if $idx != count($labels) - 1},{/if}</a></dd>
+            {* 0.75 - or 75% - is the minimum font size we'd like to see in this tag cloud *}
+            {assign $fontScale = round($label.rel_project_count * 100) + 75}
+            <dd><a href="{url 'IDF_Views::listProjectsByLabel', array($label->id, $order)}" 
+                   class="label"
+                   title="{blocktrans $label.project_count}1 project{plural}{$label.project_count} projects{/blocktrans}"
+                   style="font-size: {$fontScale}%">{$label.name}{if $idx != count($labels) - 1},{/if}</a></dd>
         {/foreach}
     {/foreach}</dl>
     {if $tag}