From b7adc4db524a6f2f03a26c48bb54f6cac383ec03 Mon Sep 17 00:00:00 2001
From: Jean-Paul Chaput <Jean-Paul.Chaput@lip6.fr>
Date: Tue, 9 Mar 2010 14:19:23 +0000
Subject: [PATCH] Caching QVariant of the column to accelerate the QTreeView.

---
 hurricane/src/hviewer/NetInformations.cpp                | 8 +++++---
 hurricane/src/hviewer/hurricane/viewer/NetInformations.h | 2 ++
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/hurricane/src/hviewer/NetInformations.cpp b/hurricane/src/hviewer/NetInformations.cpp
index 62041ff3..750a8557 100644
--- a/hurricane/src/hviewer/NetInformations.cpp
+++ b/hurricane/src/hviewer/NetInformations.cpp
@@ -116,8 +116,8 @@ namespace Hurricane {
   QVariant  SimpleNetInformations::getColumn ( int column )
   {
     switch ( column ) {
-      case 0: return QVariant(getString(getName()).c_str());
-      case 1: return QVariant((unsigned int)getPlugsCount());
+      case 0: return _columnNet;
+      case 1: return _columnPlug;
     }
     return QVariant(QObject::tr("Column Out of Bound"));
   }
@@ -125,7 +125,9 @@ namespace Hurricane {
 
   SimpleNetInformations::SimpleNetInformations ( const Net* net )
     : NetInformations(net)
-    , _plugsCount(_net->getPlugs().getSize())
+    , _plugsCount    (_net->getPlugs().getSize())
+    , _columnNet     (getString(getName()).c_str())
+    , _columnPlug    ((unsigned int)_plugsCount)
   { }
 
 
diff --git a/hurricane/src/hviewer/hurricane/viewer/NetInformations.h b/hurricane/src/hviewer/hurricane/viewer/NetInformations.h
index a4ba1391..b12ed551 100644
--- a/hurricane/src/hviewer/hurricane/viewer/NetInformations.h
+++ b/hurricane/src/hviewer/hurricane/viewer/NetInformations.h
@@ -109,6 +109,8 @@ namespace Hurricane {
       
     protected:
               size_t      _plugsCount;
+              QVariant    _columnNet;
+              QVariant    _columnPlug;
   };