From 89d07313a566058af7c93203f6badf04bdd09d62 Mon Sep 17 00:00:00 2001
From: wmayer <wmayer@users.sourceforge.net>
Date: Thu, 28 Aug 2014 15:35:17 +0200
Subject: [PATCH] + do not try to use framebuffer objects when it's not
 supported on the system

---
 src/Gui/MouseSelection.cpp | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/Gui/MouseSelection.cpp b/src/Gui/MouseSelection.cpp
index 655663ff4..055a34b35 100644
--- a/src/Gui/MouseSelection.cpp
+++ b/src/Gui/MouseSelection.cpp
@@ -28,6 +28,7 @@
 # include <qevent.h>
 # include <qpainter.h>
 # include <qpixmap.h>
+# include <QGLFramebufferObject>
 # include <QMenu>
 # include <Inventor/SbBox.h>
 # include <Inventor/events/SoEvent.h>
@@ -852,7 +853,9 @@ void RubberbandSelection::initialize()
 {
     d = new Private(_pcView3D);
     _pcView3D->addGraphicsItem(d);
-    _pcView3D->setRenderFramebuffer(true);
+    if (QGLFramebufferObject::hasOpenGLFramebufferObjects()) {
+        _pcView3D->setRenderFramebuffer(true);
+    }
     _pcView3D->scheduleRedraw();
 }
 
@@ -860,7 +863,9 @@ void RubberbandSelection::terminate()
 {
     _pcView3D->removeGraphicsItem(d);
     delete d; d = 0;
-    _pcView3D->setRenderFramebuffer(false);
+    if (QGLFramebufferObject::hasOpenGLFramebufferObjects()) {
+        _pcView3D->setRenderFramebuffer(false);
+    }
     _pcView3D->scheduleRedraw();
 }