From 226221ca5d3d5da8b278d37d279646449ef352b1 Mon Sep 17 00:00:00 2001
From: liuxuan30 <liuxuan30@gmail.com>
Date: Tue, 30 Jun 2015 11:41:24 +0800
Subject: [PATCH] fix drawing out of bound negative value axis labels issue

---
 Charts/Classes/Renderers/ChartYAxisRenderer.swift            | 5 +++++
 .../Renderers/ChartYAxisRendererHorizontalBarChart.swift     | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/Charts/Classes/Renderers/ChartYAxisRenderer.swift b/Charts/Classes/Renderers/ChartYAxisRenderer.swift
index 981d4efa9b..8dfe45a8c7 100644
--- a/Charts/Classes/Renderers/ChartYAxisRenderer.swift
+++ b/Charts/Classes/Renderers/ChartYAxisRenderer.swift
@@ -230,6 +230,11 @@ public class ChartYAxisRenderer: ChartAxisRendererBase
             pt.x = fixedPosition
             pt.y += offset
             
+            if (pt.y > viewPortHandler.contentRect.height)
+            {
+                continue
+            }
+            
             ChartUtils.drawText(context: context, text: text, point: pt, align: textAlign, attributes: [NSFontAttributeName: labelFont, NSForegroundColorAttributeName: labelTextColor])
         }
     }
diff --git a/Charts/Classes/Renderers/ChartYAxisRendererHorizontalBarChart.swift b/Charts/Classes/Renderers/ChartYAxisRendererHorizontalBarChart.swift
index 25abe7b80c..59c6cace74 100644
--- a/Charts/Classes/Renderers/ChartYAxisRendererHorizontalBarChart.swift
+++ b/Charts/Classes/Renderers/ChartYAxisRendererHorizontalBarChart.swift
@@ -159,6 +159,11 @@ public class ChartYAxisRendererHorizontalBarChart: ChartYAxisRenderer
                 return
             }
             
+            if (positions[i].x < viewPortHandler.contentRect.origin.x)
+            {
+                continue
+            }
+            
             ChartUtils.drawText(context: context, text: text, point: CGPoint(x: positions[i].x, y: fixedPosition - offset), align: .Center, attributes: [NSFontAttributeName: labelFont, NSForegroundColorAttributeName: labelTextColor])
         }
     }