[gnumeric] xlsx: avoid rounded corners when XL reads our xlsx charts.

[Morten Welinder <mortenw src gnome org>]

commit 43e6d8e0196a77bf8e6a9d54f9b9cbde7b8092bf
Author: Morten Welinder <terra gnome org>
Date:   Mon Feb 2 15:11:01 2015 -0500

    xlsx: avoid rounded corners when XL reads our xlsx charts.

 plugins/excel/xlsx-write-drawing.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/plugins/excel/xlsx-write-drawing.c b/plugins/excel/xlsx-write-drawing.c
index 62e9806..1588b5d 100644
--- a/plugins/excel/xlsx-write-drawing.c
+++ b/plugins/excel/xlsx-write-drawing.c
@@ -625,6 +625,7 @@ xlsx_write_one_plot (XLSXWriteState *state, GsfXMLOut *xml, GogObject const *cha
 
                xlsx_write_chart_int (xml, "c:idx", -1, count);
                xlsx_write_chart_int (xml, "c:order", -1, count);
+               xlsx_write_chart_uint (xml, "c:invertIfNegative", 1, 0);
                xlsx_write_series_dim (state, xml, ser, "c:tx", GOG_MS_DIM_LABELS);
                if (!vary_by_element) /* FIXME: we might loose some style elements */
                        xlsx_write_go_style_full (xml, style, has_markers);
@@ -842,6 +843,7 @@ xlsx_write_chart (XLSXWriteState *state, GsfOutput *chart_part, SheetObject *so)
        gsf_xml_out_add_cstr_unchecked (xml, "xmlns:c", ns_chart);
        gsf_xml_out_add_cstr_unchecked (xml, "xmlns:a", ns_drawing);
        gsf_xml_out_add_cstr_unchecked (xml, "xmlns:r", ns_rel);
+       xlsx_write_chart_uint (xml, "c:roundedCorners", 1, 0);
 
        graph = sheet_object_graph_get_gog (so);
        if (graph != NULL) {