Added drawSeries hook

git-svn-id: https://flot.googlecode.com/svn/trunk@242 1e0a6537-2640-0410-bfb7-f154510ff394

API.txt

@@ -950,14 +950,23 @@ hooks in the plugins bundled with Flot.
    doesn't check it or do any normalization on it afterwards.
 
 
+ - drawSeries  [phase 5]
+
+   function(plot, canvascontext, series)
+
+   Hook for custom drawing of a single series. Called just before the
+   standard drawing routine has been called in the loop that draws
+   each series.
+   
+ 
  - draw  [phase 5]
 
    function(plot, canvascontext)
  
    Hook for drawing on the canvas. Called after the grid is drawn
-   (unless it's disabled) and the series have been plotted (in case
-   any points, lines or bars have been turned on). For examples of how
-   to draw things, look at the source code.
+   (unless it's disabled or grid.aboveData is set) and the series have
+   been plotted (in case any points, lines or bars have been turned
+   on). For examples of how to draw things, look at the source code.
    
  
  - bindEvents  [phase 6]

NEWS.txt

@@ -18,7 +18,7 @@ Changes:
   to null). Issue 235.
 - Date formatter now accepts %0m and %0d to get a zero-padded month or
   day (issue raised by Maximillian Dornseif).
-
+- New hooks: drawSeries
 
 Bug fixes:
 

jquery.flot.js

@@ -139,6 +139,7 @@
             processOptions: [],
             processRawData: [],
             processDatapoints: [],
+            drawSeries: [],
             draw: [],
             bindEvents: [],
             drawOverlay: []
@@ -1067,8 +1068,10 @@
             if (grid.show && !grid.aboveData)
                 drawGrid();
 
-            for (var i = 0; i < series.length; ++i)
+            for (var i = 0; i < series.length; ++i) {
+                executeHooks(hooks.drawSeries, [ctx, series[i]]);
                 drawSeries(series[i]);
+            }
 
             executeHooks(hooks.draw, [ctx]);