From aa75990c13d0fb2aea2ced1f9f7bd7d1785bdffc Mon Sep 17 00:00:00 2001
From: Milan Crha <mcrha@redhat.com>
Date: Fri, 7 Oct 2011 15:35:15 +0200
Subject: Bug #235665 - Heavy hard disk access when resizing columns in views

---
 widgets/table/e-tree.c | 36 +++++++++++++++++++++++++++++++++++-
 1 file changed, 35 insertions(+), 1 deletion(-)

(limited to 'widgets/table/e-tree.c')

diff --git a/widgets/table/e-tree.c b/widgets/table/e-tree.c
index effd1e9aa6..e24ce6a6e0 100644
--- a/widgets/table/e-tree.c
+++ b/widgets/table/e-tree.c
@@ -197,6 +197,9 @@ struct _ETreePrivate {
 	ETreeDragSourceSite *site;
 
 	GList *expanded_list;
+
+	gboolean state_changed;
+	guint state_change_freeze;
 };
 
 static guint et_signals[LAST_SIGNAL] = { 0, };
@@ -299,7 +302,10 @@ current_search_col (ETree *et)
 static void
 e_tree_state_change (ETree *et)
 {
-	g_signal_emit (G_OBJECT (et), et_signals[STATE_CHANGE], 0);
+	if (et->priv->state_change_freeze)
+		et->priv->state_changed = TRUE;
+	else
+		g_signal_emit (G_OBJECT (et), et_signals[STATE_CHANGE], 0);
 }
 
 static void
@@ -629,6 +635,9 @@ e_tree_init (ETree *e_tree)
 		G_CALLBACK (et_search_accept), e_tree);
 
 	e_tree->priv->always_search = g_getenv ("GAL_ALWAYS_SEARCH") ? TRUE : FALSE;
+
+	e_tree->priv->state_changed = FALSE;
+	e_tree->priv->state_change_freeze = 0;
 }
 
 /* Grab_focus handler for the ETree */
@@ -3787,3 +3796,28 @@ e_tree_set_info_message (ETree *tree,
 	} else
 		gnome_canvas_item_set (tree->priv->info_text, "text", info_message, NULL);
 }
+
+void
+e_tree_freeze_state_change (ETree *tree)
+{
+	g_return_if_fail (tree != NULL);
+
+	tree->priv->state_change_freeze++;
+	if (tree->priv->state_change_freeze == 1)
+		tree->priv->state_changed = FALSE;
+
+	g_return_if_fail (tree->priv->state_change_freeze != 0);
+}
+
+void
+e_tree_thaw_state_change (ETree *tree)
+{
+	g_return_if_fail (tree != NULL);
+	g_return_if_fail (tree->priv->state_change_freeze != 0);
+
+	tree->priv->state_change_freeze--;
+	if (tree->priv->state_change_freeze == 0 && tree->priv->state_changed) {
+		tree->priv->state_changed = FALSE;
+		e_tree_state_change (tree);
+	}
+}
-- 
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