Make heuristic for x axis label widths more dynamic (based on patch by rickinhethuis)

git-svn-id: https://flot.googlecode.com/svn/trunk@210 1e0a6537-2640-0410-bfb7-f154510ff394

NEWS.txt

@@ -157,6 +157,8 @@ Bug fixes:
 - Fix for uneven axis margins (report and patch by Paul Kienzle) and
   snapping to ticks (concurrent report and patch by lifthrasiir).
 - Fixed bug with slicing in findNearbyItems (patch by zollman).
+- Make heuristic for x axis label widths more dynamic (patch by
+  rickinhethuis).
 
 Flot 0.5
 --------

jquery.flot.js

@@ -620,7 +620,7 @@
                     // them, we don't need the exact figures and the
                     // fixed-size box content is easy to center
                     if (axis.labelWidth == null)
-                        axis.labelWidth = canvasWidth / 6;
+                        axis.labelWidth = canvasWidth / (axis.ticks.length > 0 ? axis.ticks.length : 1);
 
                     // measure x label heights
                     if (axis.labelHeight == null) {