+ fix crash in spnav settings dialog while changing language, improve whitespaces

src/Gui/DlgCustomizeSpNavSettings.cpp

@@ -30,7 +30,7 @@
 using namespace Gui::Dialog;
 
 DlgCustomizeSpNavSettings::DlgCustomizeSpNavSettings(QWidget *parent) :
-    CustomizeActionPage(parent)
+    CustomizeActionPage(parent), init(false)
 {
     GUIApplicationNativeEventAware *app = qobject_cast<GUIApplicationNativeEventAware *>(QApplication::instance());
 
@@ -42,6 +42,7 @@ DlgCustomizeSpNavSettings::DlgCustomizeSpNavSettings(QWidget *parent) :
         this->setMessage(tr("No Spaceball Present"));
         return;
     }
+    this->init = true;
     this->setupUi(this);
     initialize();
 }
@@ -65,8 +66,15 @@ void DlgCustomizeSpNavSettings::setMessage(const QString& message)
 void DlgCustomizeSpNavSettings::changeEvent(QEvent *e)
 {
     if (e->type() == QEvent::LanguageChange) {
+        if (this->init) {
             this->retranslateUi(this);
         }
+        else {
+            this->setWindowTitle(tr("Spaceball Motion"));
+            QLabel *messageLabel = this->findChild<QLabel*>();
+            if (messageLabel) messageLabel->setText(tr("No Spaceball Present"));
+        }
+    }
     QWidget::changeEvent(e);
 }
 
@@ -163,7 +171,6 @@ void DlgCustomizeSpNavSettings::on_CBRotations_clicked()
     CBEnableSpin ->setEnabled(CBRotations->isChecked());
     CBReverseSpin->setEnabled(CBRotations->isChecked() && CBEnableSpin->isChecked());
     SliderSpin   ->setEnabled(CBRotations->isChecked() && CBEnableSpin->isChecked());
-
 }
 
 void DlgCustomizeSpNavSettings::on_CBTranslations_clicked()

src/Gui/DlgCustomizeSpNavSettings.h

@@ -40,7 +40,6 @@ namespace Gui
             explicit DlgCustomizeSpNavSettings(QWidget *parent = 0);
             ~DlgCustomizeSpNavSettings();
 
-         
         protected Q_SLOTS:
             void onAddMacroAction(const QByteArray&);
             void onRemoveMacroAction(const QByteArray&);
@@ -78,6 +77,9 @@ namespace Gui
             ParameterGrp::handle spaceballMotionGroup() const;
             void setMessage(const QString& message);
             void initialize();
+
+        private:
+            bool init;
         };
     }
 }