removed unused or useless stuff,

renamed some functions for better description,
repaired the SettingsManager usage,
ToDo:
Dropdown list is not updated, it needs a restart,
display names for the directories instead of the path,

QtMeshViewer/Header/MainWindow.h

@@ -26,19 +26,18 @@ private:
 	int m_curSeverity;
 
 	FileInfoWindow* m_infoWindow;
-	QFileSystemModel* fmodel;
-	QStringList filters, dropDownDirList;
+	QFileSystemModel* m_fmodel;
+	QStringList m_filters;
 
 // functions
 private:
 	void setupWidgets();
-	void getAssetLibrary();
-	void setAsset(QString);
+	void setupAssetLibrary();
+	void updateAssetTree(QString);
 	void searchMeshFiles(QString path);
-	void openFile();
-	void openFileActual(QString);
+	void openFileDialog();
+	void openFile(QString);
 	void takeScreenShot();
-	void setDirList();
 	void aboutTool();
 
 protected:

QtMeshViewer/Header/SettingsManager.h

@@ -22,8 +22,8 @@ public:
 
 // attributes
 private:
-	QFile file;
-	QString listOfDirs;
+	QFile m_file;
+	QStringList m_listOfDirs;
 
 	QVector3D m_bgColorOn = { 5, 5, 5 };
 	QVector3D m_bgColorOff = { 128, 204, 255 };
@@ -47,8 +47,7 @@ public:
 	bool isBfCulling() const;
 	bool isLight() const;
 
-	QString getListOfDirs();
-	void setListOfDirs(QString);
+	QStringList getListOfDirs();
 
 	int getLightType() const;
 	QVector3D getLightColor() const;
@@ -72,4 +71,5 @@ public:
 	void setHeadlight(bool value);
 	void setAutoColor(int value);
 
+	void updateDirectories(QString path);
 };

QtMeshViewer/Header/SettingsWindow.h

@@ -11,16 +11,11 @@ class SettingsWindow : public QWidget
 public:
 	SettingsWindow(QWidget * parent = Q_NULLPTR);
 	~SettingsWindow();
-	QString getDirList();
 
 private:
 	Ui::SettingsWindow* ui;
 
 	void setupConnections();
-	void updateDirList();
-
-private:
-	QString dirList;
 
 private slots:
 	void autoColorToggled();
@@ -42,5 +37,6 @@ signals:
 	void sendBackfaceCulling(bool value);
 	void sendZommSpeed(int percent);
 	void changeLightType(int value);
+	void pathChanged(QString path);
 	
 };