Spacemouse platform dependent code is moved to different classes. Compiles and works for Linux

src/Gui/3Dconnexion/GuiNativeEventLinux.cpp

@@ -0,0 +1,81 @@
+ /*
+Implementation by Torsten Sadowski 2018
+ */
+
+#include "GuiNativeEventLinux.h"
+
+#include "GuiApplicationNativeEventAware.h"
+#include "SpaceballEvent.h"
+#include <FCConfig.h>
+#include <Base/Console.h>
+#include <QMainWindow>
+#include <QTimer>
+
+#include <spnav.h>
+
+Gui::GuiNativeEvent::GuiNativeEvent(Gui::GUIApplicationNativeEventAware *app)
+: QObject(app)
+{
+	mainApp = app;
+}
+
+Gui::GuiNativeEvent::~GuiNativeEvent()
+{
+    if (spnav_close())
+        Base::Console().Log("Couldn't disconnect from spacenav daemon\n");
+    else
+        Base::Console().Log("Disconnected from spacenav daemon\n");
+}
+
+void Gui::GuiNativeEvent::initSpaceball(QMainWindow *window)
+{
+	Q_UNUSED(window)
+    if (spnav_open() == -1) {
+        Base::Console().Log("Couldn't connect to spacenav daemon\n");
+    } else {
+        Base::Console().Log("Connected to spacenav daemon\n");
+        QTimer* SpacenavPollTimer = new QTimer(this);
+		connect(SpacenavPollTimer, &QTimer::timeout, this, &GuiNativeEvent::pollSpacenav);
+		SpacenavPollTimer->start(20);
+		mainApp->setSpaceballPresent(true);
+    }
+}
+
+void Gui::GuiNativeEvent::pollSpacenav()
+{
+	spnav_event ev;
+	while(spnav_poll_event(&ev))
+	{
+		QWidget *currentWidget = mainApp->focusWidget();
+		if (!currentWidget)
+			return;
+		//if (!setOSIndependentMotionData()) return;
+		//importSettings();
+		switch (ev.type)
+		{
+			case SPNAV_EVENT_MOTION:
+			{
+				Spaceball::MotionEvent *motionEvent = new Spaceball::MotionEvent();
+				motionEvent->setTranslations(ev.motion.x, ev.motion.y, ev.motion.z);
+				motionEvent->setRotations(ev.motion.rx, ev.motion.ry, ev.motion.rz);
+				mainApp->postEvent(currentWidget, motionEvent);
+				break;
+			}
+			case SPNAV_EVENT_BUTTON:
+			{
+				Spaceball::ButtonEvent *buttonEvent = new Spaceball::ButtonEvent();
+				buttonEvent->setButtonNumber(ev.button.bnum);
+				if (ev.button.press)
+				{
+					buttonEvent->setButtonStatus(Spaceball::BUTTON_PRESSED);
+				}
+				else
+				{
+					buttonEvent->setButtonStatus(Spaceball::BUTTON_RELEASED);
+				}
+				mainApp->postEvent(currentWidget, buttonEvent);
+				break;
+			}
+		}
+	}
+}