[chronojump] Jumps cairo XY graphs grid not drawn on axis

[Xavier de Blas <xaviblas src gnome org>]

commit c68d97fa5e40cc0fd16bb5565da3ad45413f8798
Author: Xavier de Blas <xaviblas gmail com>
Date:   Wed Jul 29 13:17:30 2020 +0200

    Jumps cairo XY graphs grid not drawn on axis

 src/gui/cairo/xy.cs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/gui/cairo/xy.cs b/src/gui/cairo/xy.cs
index 71cf9012..0df0c252 100644
--- a/src/gui/cairo/xy.cs
+++ b/src/gui/cairo/xy.cs
@@ -488,7 +488,7 @@ public abstract class CairoXY
                        for(double i = gridXTuple.Item1; i <= gridXTuple.Item2 ; i += gridXTuple.Item3)
                        {
                                int xtemp = Convert.ToInt32(calculatePaintX(i));
-                               if(xtemp < outerMargins || xtemp > graphWidth - outerMargins)
+                               if(xtemp <= outerMargins || xtemp >= graphWidth - outerMargins)
                                        continue;
 
                                paintVerticalGridLine(xtemp, Util.TrimDecimals(i, 2));
@@ -498,7 +498,7 @@ public abstract class CairoXY
                        for(double i = gridYTuple.Item1; i <= gridYTuple.Item2 ; i += gridYTuple.Item3)
                        {
                                int ytemp = Convert.ToInt32(calculatePaintY(i));
-                               if(ytemp < outerMargins || ytemp > graphHeight - outerMargins)
+                               if(ytemp <= outerMargins || ytemp >= graphHeight - outerMargins)
                                        continue;
 
                                paintHorizontalGridLine(ytemp, Util.TrimDecimals(i, 2));