From ac263ef261a6dcea141ffa77a6cbc9b86c286c62 Mon Sep 17 00:00:00 2001
From: Kai Koehne <kai.koehne@nokia.com>
Date: Wed, 20 Oct 2010 11:52:54 +0200
Subject: [PATCH] QmlOutline: Speed up updates
Guard the incremental updates with beginResetModel/endResetModel
This gives better overall performance then passing the incremental
updates to the views.
Tested-by: Lasse Holmstedt
---
src/plugins/qmljseditor/qmloutlinemodel.cpp | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/src/plugins/qmljseditor/qmloutlinemodel.cpp b/src/plugins/qmljseditor/qmloutlinemodel.cpp
index a004804868c..e07a9f6f0d1 100644
--- a/src/plugins/qmljseditor/qmloutlinemodel.cpp
+++ b/src/plugins/qmljseditor/qmloutlinemodel.cpp
@@ -367,6 +367,10 @@ void QmlOutlineModel::update(const SemanticInfo &semanticInfo)
m_treePos.append(0);
m_currentItem = invisibleRootItem();
+ // resetModel() actually gives better average performance
+ // then the incremental updates.
+ beginResetModel();
+
m_typeToIcon.clear();
m_itemToNode.clear();
m_itemToIdNode.clear();
@@ -376,6 +380,8 @@ void QmlOutlineModel::update(const SemanticInfo &semanticInfo)
QmlOutlineModelSync syncModel(this);
syncModel(m_semanticInfo.document);
+ endResetModel();
+
emit updated();
}
--
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