consider border width to avoid displaying it when disabled in html. Closes #2527797

1      }
2  });
3 
4  // code below is coming from
5  // https://bitbucket.org/cleonello/jqplot/issue/14/export-capabilities#comment-554274
6 +// changes by Logilab:
7 +// * check border width before drawing it
8 +// * don't attempt to auto wrap text, search for <br> instead
9  $(function() {
10      $.fn.jqplotToImage = function() {
11          var obj = $(this);
12          var newCanvas = document.createElement("canvas");
13          var size = cwplot.findPlotSize(obj);

14          });
15          // add the legend
16          obj.children("table.jqplot-table-legend").each(function() {
17              var offset = $(this).offset();
18              var context = newCanvas.getContext("2d");
19 -            context.strokeStyle = $(this).css('border-top-color');
20 -            context.strokeRect(
21 -                offset.left - baseOffset.left,
22 -                offset.top - baseOffset.top,
23 -                $(this).width(),$(this).height()
24 -            );
25 +            if ($(this).css('border-top-width') != '0px') {
26 +                context.strokeStyle = $(this).css('border-top-color');
27 +                context.strokeRect(
28 +                    offset.left - baseOffset.left,
29 +                    offset.top - baseOffset.top,
30 +                    $(this).width(), $(this).height()
31 +                );
32 +            }
33              context.fillStyle = $(this).css('background-color');
34              context.fillRect(
35                  offset.left - baseOffset.left,
36                  offset.top - baseOffset.top,
37                  $(this).width(),$(this).height()

38          });
39          // add the swatches
40          obj.find("div.jqplot-table-legend-swatch").each(function() {
41              var offset = $(this).offset();
42              var context = newCanvas.getContext("2d");
43 -            context.fillStyle = $(this).css('border-top-color');
44 -            context.fillRect(
45 -                offset.left - baseOffset.left,
46 -                offset.top - baseOffset.top,
47 -                $(this).parent().width(),$(this).parent().height()
48 -            );
49 +            if ($(this).css('border-top-width') != '0px') {
50 +                context.fillStyle = $(this).css('border-top-color');
51 +                context.fillRect(
52 +                    offset.left - baseOffset.left,
53 +                    offset.top - baseOffset.top,
54 +                    $(this).parent().width(),$(this).parent().height()
55 +                );
56 +            }
57          });
58          obj.find("td.jqplot-table-legend").each(function() {
59              var offset = $(this).offset();
60              var context = newCanvas.getContext("2d");
61              context.textBaseline = $(this).css('vertical-align');