[gnumeric] xlsx: read smooth-line settings.

[Morten Welinder <mortenw src gnome org>]

commit d53cd4ca64c2aef2e3bdb0b79f502aaa5bcdebe9
Author: Morten Welinder <terra gnome org>
Date:   Wed Feb 4 14:37:45 2015 -0500

    xlsx: read smooth-line settings.

 plugins/excel/xlsx-read-drawing.c |   16 +++++++++++++++-
 1 files changed, 15 insertions(+), 1 deletions(-)
---
diff --git a/plugins/excel/xlsx-read-drawing.c b/plugins/excel/xlsx-read-drawing.c
index 1ddd282..07af630 100644
--- a/plugins/excel/xlsx-read-drawing.c
+++ b/plugins/excel/xlsx-read-drawing.c
@@ -1182,6 +1182,20 @@ xlsx_ser_trendline_dispeq (GsfXMLIn *xin, G_GNUC_UNUSED  xmlChar const **attrs)
        }
 }
 
+static void
+xlsx_ser_smooth (GsfXMLIn *xin, xmlChar const **attrs)
+{
+       XLSXReadState *state = (XLSXReadState *)xin->user_state;
+       gboolean smooth;
+
+       if (simple_bool (xin, attrs, &smooth) && smooth) {
+               GOLineInterpolation inter = GO_LINE_INTERPOLATION_CUBIC_SPLINE;
+               g_object_set (state->cur_obj,
+                             "interpolation", go_line_interpolation_as_str (inter),
+                             NULL);
+       }
+}
+
 
 static void
 xlsx_ser_labels_show_val (GsfXMLIn *xin, xmlChar const **attrs)
@@ -2262,7 +2276,7 @@ GSF_XML_IN_NODE_FULL (START, CHART_SPACE, XL_NS_CHART, "chartSpace", GSF_XML_NO_
 
           GSF_XML_IN_NODE (SERIES, SERIES_BUBBLES_3D, XL_NS_CHART,     "bubble3D", GSF_XML_NO_CONTENT, NULL, 
NULL),
           GSF_XML_IN_NODE (SERIES, SHAPE_PR, XL_NS_CHART, "spPr", GSF_XML_NO_CONTENT, NULL, NULL),           
          /* 2nd Def */
-       GSF_XML_IN_NODE (SERIES, SERIES_SMOOTH, XL_NS_CHART, "smooth", GSF_XML_NO_CONTENT, NULL, NULL),
+       GSF_XML_IN_NODE (SERIES, SERIES_SMOOTH, XL_NS_CHART, "smooth", GSF_XML_NO_CONTENT, xlsx_ser_smooth, 
NULL),
           GSF_XML_IN_NODE (SERIES, SERIES_IDX, XL_NS_CHART,    "idx", GSF_XML_NO_CONTENT, NULL, NULL),
           GSF_XML_IN_NODE (SERIES, SERIES_D_LBLS, XL_NS_CHART, "dLbls", GSF_XML_NO_CONTENT, 
&xlsx_ser_labels_start, &xlsx_ser_labels_end),
             GSF_XML_IN_NODE (SERIES_D_LBLS, SERIES_D_LBLS_POS, XL_NS_CHART,    "dLblPos", 
GSF_XML_NO_CONTENT, &xlsx_ser_labels_pos, NULL),