From d6a1ee2d530580d2499ad41d007da37cd1f3c676 Mon Sep 17 00:00:00 2001
From: Simon Rit <simon.rit@creatis.insa-lyon.fr>
Date: Mon, 30 May 2011 19:15:33 +0200
Subject: [PATCH] Force visilibty of base image on first click of him or one of
 his children

---
 vv/vvMainWindow.cxx | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/vv/vvMainWindow.cxx b/vv/vvMainWindow.cxx
index 8842b2d..c3465c1 100644
--- a/vv/vvMainWindow.cxx
+++ b/vv/vvMainWindow.cxx
@@ -1381,9 +1381,13 @@ void vvMainWindow::DisplayChanged(QTreeWidgetItem *clickedItem, int column)
       mSlicerManagers[slicerManagerIndex]->UpdateSlicer(column-1, true);
       mSlicerManagers[slicerManagerIndex]->UpdateInfoOnCursorPosition(column-1);
       DisplaySliders(slicerManagerIndex, column-1);
-      if(clickedParentItem == clickedItem) {
-        // Toggle or force visibility if it was not on this branch so far
-        vis = !draw || !vis;
+      if(!draw) {
+        // We were not on this branch so far => force visibility
+        vis = true;
+      }
+      else if(clickedParentItem == clickedItem) {
+        // Toggle
+        vis =  !vis;
       }
       clickedSlicer->SetActorVisibility("image", 0, vis);
       clickedParentItem->setData(column, Qt::CheckStateRole, vis?2:0);
-- 
2.45.1