From 00a2d225a2d01edae0af8625f38a71ea89c7e1ae Mon Sep 17 00:00:00 2001
From: Matthias Jentsch <matthias.jentsch@netways.de>
Date: Thu, 28 Aug 2014 16:42:31 +0200
Subject: [PATCH] Ensure that PieCharts are centered and that labels dont leave
 the viewBox

Add scaling and transformations to move the PieChart into a valid coordinate system and reduce the offset of the labels to make more efficient use of available space.
---
 library/Icinga/Chart/PieChart.php           | 2 +-
 library/Icinga/Chart/Primitive/PieSlice.php | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/library/Icinga/Chart/PieChart.php b/library/Icinga/Chart/PieChart.php
index 7e80738ac..ac3772428 100644
--- a/library/Icinga/Chart/PieChart.php
+++ b/library/Icinga/Chart/PieChart.php
@@ -122,7 +122,7 @@ class PieChart extends Chart
      */
     public function toSvg(RenderContext $ctx)
     {
-        $outerBox = new Canvas('outerGraph', new LayoutBox(0, 0, 100, 100));
+        $outerBox = new Canvas('outerGraph', new LayoutBox(33, -5, 40, 40));
         $innerBox = new Canvas('graph', new LayoutBox(0, 0, 100, 100));
         $labelBox = $ctx->getDocument()->createElement('g');
         if (!$this->noCaption) {
diff --git a/library/Icinga/Chart/Primitive/PieSlice.php b/library/Icinga/Chart/Primitive/PieSlice.php
index 631013d69..33f3cbee7 100644
--- a/library/Icinga/Chart/Primitive/PieSlice.php
+++ b/library/Icinga/Chart/Primitive/PieSlice.php
@@ -159,7 +159,7 @@ class PieSlice extends Animatable implements Drawable
         // Draw the handle
         $path = new Path(array($midX, $midY));
 
-        $midX += ($addOffset + $r/1.8) * ($midRadius > M_PI ? -1 : 1);
+        $midX += ($addOffset + $r/3) * ($midRadius > M_PI ? -1 : 1);
         $path->append(array($midX, $midY))->toAbsolute();
 
         $midX += intval($r/2 * sin(M_PI/9)) * ($midRadius > M_PI ? -1 : 1);