[gnumeric] Fix ODF export of serieslines styles.

[Andreas J. Guelzow <guelzow src gnome org>]

commit 5ab64c2ceb1b19bfd349e9ecbaf9427921c04edd
Author: Andreas J. Guelzow <aguelzow pyrshep ca>
Date:   Sun Feb 8 16:08:53 2015 -0700

    Fix ODF export of serieslines styles.
    
    2015-02-08  Andreas J. Guelzow <aguelzow pyrshep ca>
    
        * openoffice-write.c (odf_write_series_lines): don't use
        gog_object_get_child_by_name since it may return the wrong objects. Get teh correct
        style name.

 NEWS                                  |    1 +
 plugins/openoffice/ChangeLog          |    6 ++++++
 plugins/openoffice/openoffice-write.c |   12 +++++++++---
 3 files changed, 16 insertions(+), 3 deletions(-)
---
diff --git a/NEWS b/NEWS
index d4b4ec8..1c8718d 100644
--- a/NEWS
+++ b/NEWS
@@ -8,6 +8,7 @@ Andreas:
        * Fix ODF import/export of marker fill and outline colours.
        * Improve ODF export of manually positioned charts in multi-chart
          graphs. [#743789]
+       * Fix ODF export of serieslines styles.
 
 Morten:
        * Initial xlsx import of sheet widgets.
diff --git a/plugins/openoffice/ChangeLog b/plugins/openoffice/ChangeLog
index 7394b1d..3f7027a 100644
--- a/plugins/openoffice/ChangeLog
+++ b/plugins/openoffice/ChangeLog
@@ -1,5 +1,11 @@
 2015-02-08  Andreas J. Guelzow <aguelzow pyrshep ca>
 
+       * openoffice-write.c (odf_write_series_lines): don't use
+       gog_object_get_child_by_name since it may return the wrong objects. Get teh correct
+       style name.
+
+2015-02-08  Andreas J. Guelzow <aguelzow pyrshep ca>
+
        * openoffice-write.c (odf_write_multi_chart_frame_size): For manually positioned
        charts we may have 0 columns and/or rows.
 
diff --git a/plugins/openoffice/openoffice-write.c b/plugins/openoffice/openoffice-write.c
index ee9ae7d..3c15927 100644
--- a/plugins/openoffice/openoffice-write.c
+++ b/plugins/openoffice/openoffice-write.c
@@ -6288,15 +6288,21 @@ odf_write_label_cell_address (GnmOOExport *state, GOData const *dat)
 static void
 odf_write_series_lines (GnmOOExport *state, GogObject const *series)
 {
-       GogObject const *serieslines = gog_object_get_child_by_name (series, "Series lines");
-       if (serieslines) {
-                       char *style = odf_get_gog_style_name_from_obj (state, series);
+       GogObjectRole const *role = gog_object_find_role_by_name (series, "Series lines");
+
+       if (role != NULL) {
+               GSList *serieslines = gog_object_get_children (series, role);
+               if (serieslines != NULL && serieslines->data != NULL) {
+                       GogObject *obj = GOG_OBJECT (serieslines->data);
+                       char *style = odf_get_gog_style_name_from_obj (state, obj);
 
                        gsf_xml_out_start_element (state->xml, GNMSTYLE "serieslines");
                        gsf_xml_out_add_cstr (state->xml, CHART "style-name", style);
                        gsf_xml_out_end_element (state->xml); /* </gnm:serieslines> */
 
                        g_free (style);
+               }
+               g_slist_free (serieslines);
        }
 }