From 755cd3bfbda380ae1a6e3988ff85ccc3b333d8ef Mon Sep 17 00:00:00 2001
From: wmayer <wmayer@users.sourceforge.net>
Date: Sat, 30 Sep 2017 14:55:18 +0200
Subject: [PATCH] fixes #0002931: Box select misbehaves with touchpad
 navigation style

---
 src/Gui/CommandView.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/Gui/CommandView.cpp b/src/Gui/CommandView.cpp
index 68f439c9a7..3276f339f6 100644
--- a/src/Gui/CommandView.cpp
+++ b/src/Gui/CommandView.cpp
@@ -2538,6 +2538,13 @@ void StdBoxSelection::activated(int iMsg)
     if (view) {
         View3DInventorViewer* viewer = view->getViewer();
         if (!viewer->isSelecting()) {
+            // #0002931: Box select misbehaves with touchpad navigation style
+            // Notify the navigation style to cleanup internal states
+            int mode = viewer->navigationStyle()->getViewingMode();
+            if (mode != Gui::NavigationStyle::IDLE) {
+                SoKeyboardEvent ev;
+                viewer->navigationStyle()->processEvent(&ev);
+            }
             viewer->startSelection(View3DInventorViewer::Rubberband);
             viewer->addEventCallback(SoMouseButtonEvent::getClassTypeId(), selectionCallback);
             SoNode* root = viewer->getSceneGraph();