refs #392 Added the "Install XBus" feature

* New "Install XBus" button in the CSimulatorXPlaneConfigWindow
* CSettingsSimulatorComponent cleanup

src/blackgui/components/settingssimulatorcomponent.cpp

@@ -280,9 +280,7 @@ namespace BlackGui
 
             QString configId = m_plugins->getPluginConfigId(selected->getIdentifier());
             IPluginConfig *config = m_plugins->getPluginById<IPluginConfig>(configId);
-            CPluginConfigWindow *window = config->createConfigWindow();
-            window->setParent(qApp->activeWindow());
-            window->setWindowFlags(Qt::Dialog);
+            CPluginConfigWindow *window = config->createConfigWindow(qApp->activeWindow());
             window->setAttribute(Qt::WA_DeleteOnClose);
             window->show();
         }

src/blackgui/pluginconfig.h

@@ -32,10 +32,10 @@ namespace BlackGui
 
     public:
         //! Dtor.
-        virtual ~IPluginConfig() = default;
+        virtual ~IPluginConfig() {}
 
         //! Creates a new config window and returns its pointer.
-        virtual CPluginConfigWindow *createConfigWindow() = 0;
+        virtual CPluginConfigWindow *createConfigWindow(QWidget *parent) = 0;
 
     };
 }

src/blackgui/pluginconfigwindow.cpp

@@ -1,10 +1,27 @@
 #include "pluginconfigwindow.h"
+#include <QDesktopWidget>
+#include <QApplication>
+#include <QStyle>
 
 namespace BlackGui {
 
-    CPluginConfigWindow::CPluginConfigWindow() : QWidget(nullptr)
+    CPluginConfigWindow::CPluginConfigWindow(QWidget *parent) : QWidget(parent, Qt::Window)
     {
 
     }
 
+    void CPluginConfigWindow::showEvent(QShowEvent *event)
+    {
+        this->setGeometry(
+            QStyle::alignedRect(
+                Qt::LeftToRight,
+                Qt::AlignCenter,
+                this->size(),
+                QDesktopWidget().screenGeometry(qApp->activeWindow())
+            )
+        );
+
+        Q_UNUSED(event);
+    }
+
 }

src/blackgui/pluginconfigwindow.h

@@ -22,7 +22,10 @@ namespace BlackGui
         Q_OBJECT
     public:
         //! No parent
-        explicit CPluginConfigWindow();
+        explicit CPluginConfigWindow(QWidget *parent);
+
+    protected:
+        virtual void showEvent(QShowEvent *event) override;
 
     };
 }