[gnumeric] xlsx: read firstSliceAng for pie and ring charts.

[Morten Welinder <mortenw src gnome org>]

commit 9aa0166da31d9fdffb4fe324a1067ea93f544465
Author: Morten Welinder <terra gnome org>
Date:   Mon Apr 13 18:54:32 2015 -0400

    xlsx: read firstSliceAng for pie and ring charts.

 plugins/excel/ChangeLog           |    2 ++
 plugins/excel/xlsx-read-drawing.c |   12 +++++++++++-
 2 files changed, 13 insertions(+), 1 deletions(-)
---
diff --git a/plugins/excel/ChangeLog b/plugins/excel/ChangeLog
index 4252ce4..eb15700 100644
--- a/plugins/excel/ChangeLog
+++ b/plugins/excel/ChangeLog
@@ -1,5 +1,7 @@
 2015-04-13  Morten Welinder  <terra gnome org>
 
+       * xlsx-read-drawing.c (xlsx_chart_pie_angle): Read firstSliceAng.
+
        * xlsx-read.c (xlsx_ext_tabtextcolor): New function for round trip
        of tab text color.
 
diff --git a/plugins/excel/xlsx-read-drawing.c b/plugins/excel/xlsx-read-drawing.c
index 33bdc3a..ca4b6e3 100644
--- a/plugins/excel/xlsx-read-drawing.c
+++ b/plugins/excel/xlsx-read-drawing.c
@@ -659,6 +659,16 @@ xlsx_chart_pie_sep (GsfXMLIn *xin, xmlChar const **attrs)
                      "default-separation", (double)(CLAMP (sep, 0u, 500u)) / 100.0, NULL);
 }
 
+static void
+xlsx_chart_pie_angle (GsfXMLIn *xin, xmlChar const **attrs)
+{
+       XLSXReadState *state = (XLSXReadState *)xin->user_state;
+       unsigned angle = 0;
+       (void)simple_uint (xin, attrs, &angle);
+       g_object_set (G_OBJECT (state->plot),
+                     "initial-angle", (double)angle, NULL);
+}
+
 /* shared with pie of pie, and bar of pie */
 static void xlsx_chart_pie (GsfXMLIn *xin, G_GNUC_UNUSED xmlChar const **attrs) { xlsx_chart_add_plot (xin, 
"GogPiePlot"); }
 static void xlsx_chart_ring (GsfXMLIn *xin, G_GNUC_UNUSED xmlChar const **attrs) { xlsx_chart_add_plot (xin, 
"GogRingPlot"); }
@@ -2662,7 +2672,7 @@ GSF_XML_IN_NODE_FULL (START, CHART_SPACE, XL_NS_CHART, "chartSpace", GSF_XML_NO_
         GSF_XML_IN_NODE (PIE, SERIES, XL_NS_CHART,     "ser", GSF_XML_2ND, NULL, NULL),
           GSF_XML_IN_NODE (SERIES, PIE_SER_SEP, XL_NS_CHART,   "explosion", GSF_XML_NO_CONTENT, 
&xlsx_chart_pie_sep, NULL),
         GSF_XML_IN_NODE (PIE, VARY_COLORS, XL_NS_CHART,        "varyColors", GSF_XML_2ND, NULL, NULL),
-        GSF_XML_IN_NODE (PIE, PIE_FIRST_SLICE, XL_NS_CHART,    "firstSliceAng", GSF_XML_NO_CONTENT, NULL, 
NULL),
+        GSF_XML_IN_NODE (PIE, PIE_FIRST_SLICE, XL_NS_CHART,    "firstSliceAng", GSF_XML_NO_CONTENT, 
&xlsx_chart_pie_angle, NULL),
 
       GSF_XML_IN_NODE (PLOTAREA, OF_PIE, XL_NS_CHART,  "ofPieChart", GSF_XML_NO_CONTENT, &xlsx_chart_pie, 
&xlsx_plot_end),
         GSF_XML_IN_NODE (OF_PIE, OF_PIE_TYPE,  XL_NS_CHART, "ofPieType", GSF_XML_NO_CONTENT, NULL, NULL),