[goffice] [GOData] Add go_data_get_n_dimensions function.

[Emmanuel Pacaud <emmanuel src gnome org>]

commit 6bd77453b263e86ea1e74c324e0b5664f87de8e3
Author: Emmanuel Pacaud <emmanuel pacaud lapp in2p3 fr>
Date:   Thu Apr 23 16:54:00 2009 +0200

    [GOData] Add go_data_get_n_dimensions function.
---
 goffice/data/go-data.c |   13 +++++++++++++
 goffice/data/go-data.h |    1 +
 2 files changed, 14 insertions(+), 0 deletions(-)

diff --git a/goffice/data/go-data.c b/goffice/data/go-data.c
index c172d5c..5c84953 100644
--- a/goffice/data/go-data.c
+++ b/goffice/data/go-data.c
@@ -258,6 +258,19 @@ go_data_is_varying_uniformly (GOData *data)
 }
 
 unsigned int
+go_data_get_n_dimensions (GOData *data)
+{
+	GODataClass const *data_class;
+
+	g_return_val_if_fail (GO_IS_DATA (data), 0);
+
+	data_class = GO_DATA_GET_CLASS (data);
+	g_return_val_if_fail (data_class->get_n_dimensions != NULL, 0);
+
+	return data_class->get_n_dimensions (data);
+}
+
+unsigned int
 go_data_get_n_values (GOData *data)
 {
 	GODataClass const *data_class;
diff --git a/goffice/data/go-data.h b/goffice/data/go-data.h
index 49e6728..b8c42e5 100644
--- a/goffice/data/go-data.h
+++ b/goffice/data/go-data.h
@@ -46,6 +46,7 @@ gboolean	go_data_is_increasing		(GOData *data);
 gboolean	go_data_is_decreasing		(GOData *data);
 gboolean	go_data_is_varying_uniformly	(GOData *data);
 
+unsigned int 	go_data_get_n_dimensions 	(GOData *data);
 unsigned int	go_data_get_n_values		(GOData *data);
 
 unsigned int	go_data_get_vector_size 	(GOData *data);