From a447eb391c53e2731f61375411007b73bf95a0a3 Mon Sep 17 00:00:00 2001
From: Peter Penz <peter.penz19@gmail.com>
Date: Fri, 17 Jul 2009 19:26:46 +0000
Subject: The performance of updating the revision state of items depends on
 the used plugin. To prevent that Dolphin gets blocked by a slow plugin, the
 updating is delegated to a thread.

Still open issue: Applying the revision control property to the model is a bottleneck in QListView (a detailed description of the reason is in kdelibs/kfile/kfilepreviewgenerator.cpp, class LayoutBlocker). But the approach used in KFilePreviewGenerator destroys the textlayout in this case and is temporary disabled until I could track down the reason.

svn path=/trunk/KDE/kdebase/apps/; revision=998492
---
 src/revisioncontrolobserver.h | 23 +++++++++++++++++++++--
 1 file changed, 21 insertions(+), 2 deletions(-)

(limited to 'src/revisioncontrolobserver.h')

diff --git a/src/revisioncontrolobserver.h b/src/revisioncontrolobserver.h
index 14ea0528e..c5cf9bb0d 100644
--- a/src/revisioncontrolobserver.h
+++ b/src/revisioncontrolobserver.h
@@ -22,14 +22,18 @@
 
 #include <libdolphin_export.h>
 
+#include <kfileitem.h>
+#include <revisioncontrolplugin.h>
 #include <QObject>
+#include <QPersistentModelIndex>
 #include <QString>
 
 class DolphinModel;
 class KDirLister;
 class QAbstractItemView;
+class QThread;
 class QTimer;
-class RevisionControlPlugin;
+class UpdateItemStatesThread;
 
 /**
  * @brief Observes all revision control plugins.
@@ -50,16 +54,31 @@ public:
 private slots:
     void delayedDirectoryVerification();
     void verifyDirectory();
-
+    void applyUpdatedItemStates();
+    
 private:
     void updateItemStates();
 
 private:
+    struct ItemState
+    {
+        QPersistentModelIndex index;
+        KFileItem item;
+        RevisionControlPlugin::RevisionState revision;
+    };
+    
+    bool m_pendingItemStatesUpdate;
+    
     QAbstractItemView* m_view;
     KDirLister* m_dirLister;
     DolphinModel* m_dolphinModel;
+    
     QTimer* m_dirVerificationTimer;
+    
     RevisionControlPlugin* m_plugin;
+    UpdateItemStatesThread* m_updateItemStatesThread;
+
+    friend class UpdateItemStatesThread;
 };
 
 #endif // REVISIONCONTROLOBSERVER_H
-- 
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