[evolution] Bug #655709 - Hide 'Group by' in views when not supported

[Milan Crha <mcrha src gnome org>]

commit 07b58617f36d0061adf14046b4baf5299038d61c
Author: Milan Crha <mcrha redhat com>
Date:   Mon Sep 5 18:20:38 2011 +0200

    Bug #655709 - Hide 'Group by' in views when not supported

 mail/message-list.etspec      |    2 +-
 widgets/table/e-table-state.c |    6 +++++-
 widgets/table/e-tree.c        |    2 ++
 3 files changed, 8 insertions(+), 2 deletions(-)
---
diff --git a/mail/message-list.etspec b/mail/message-list.etspec
index 08f51bf..d54390f 100644
--- a/mail/message-list.etspec
+++ b/mail/message-list.etspec
@@ -1,4 +1,4 @@
-<ETableSpecification cursor-mode="line" draw-grid="false" draw-focus="true" selection-mode="browse">
+<ETableSpecification cursor-mode="line" draw-grid="false" draw-focus="true" selection-mode="browse" allow-grouping="false">
   <ETableColumn model_col="0" _title="Status" pixbuf="status" expansion="0.0" minimum_width="18" resizable="false" cell="render_message_status" compare="integer" />
 
   <ETableColumn model_col="1" _title="Flagged" pixbuf="flagged" expansion="0.0" minimum_width="18" resizable="false" cell="render_flagged" compare="integer"/>
diff --git a/widgets/table/e-table-state.c b/widgets/table/e-table-state.c
index 785c807..a336281 100644
--- a/widgets/table/e-table-state.c
+++ b/widgets/table/e-table-state.c
@@ -164,6 +164,7 @@ e_table_state_load_from_node (ETableState *state,
 	GList *list = NULL, *iterator;
 	gdouble state_version;
 	gint i;
+	gboolean can_group = TRUE;
 
 	g_return_if_fail (E_IS_TABLE_STATE (state));
 	g_return_if_fail (node != NULL);
@@ -171,8 +172,10 @@ e_table_state_load_from_node (ETableState *state,
 	state_version = e_xml_get_double_prop_by_name_with_default (
 		node, (const guchar *)"state-version", STATE_VERSION);
 
-	if (state->sort_info)
+	if (state->sort_info) {
+		can_group = e_table_sort_info_get_can_group (state->sort_info);
 		g_object_unref (state->sort_info);
+	}
 
 	state->sort_info = NULL;
 	children = node->xmlChildrenNode;
@@ -202,6 +205,7 @@ e_table_state_load_from_node (ETableState *state,
 
 	if (!state->sort_info)
 		state->sort_info = e_table_sort_info_new ();
+	e_table_sort_info_set_can_group (state->sort_info, can_group);
 
 	for (iterator = list, i = 0; iterator; i++) {
 		int_and_double *column_info = iterator->data;
diff --git a/widgets/table/e-tree.c b/widgets/table/e-tree.c
index 770b2ad..67d9020 100644
--- a/widgets/table/e-tree.c
+++ b/widgets/table/e-tree.c
@@ -1677,6 +1677,7 @@ e_tree_construct (ETree *e_tree,
 	}
 
 	e_tree->priv->spec = specification;
+	e_tree->priv->spec->allow_grouping = FALSE;
 
 	g_object_unref (state);
 
@@ -1743,6 +1744,7 @@ e_tree_construct_from_spec_file (ETree *e_tree,
 	}
 
 	e_tree->priv->spec = specification;
+	e_tree->priv->spec->allow_grouping = FALSE;
 
 	g_object_unref (state);