most settings are saved and restored

QtMeshViewer/Header/OglViewerWidget.h

@@ -23,19 +23,19 @@ private:
 	QOpenGLShaderProgram m_program;
 	GeometryEngine *m_dataEngine;
 
-	QVector4D m_backgroundColorOn = { 0.02f, 0.02f, 0.02f, 1.0f };
-	QVector4D m_backgroundColorOff = { 0.5f, 0.8f, 1.0f, 1.0f };
+	QVector4D m_backgroundColorOn;
+	QVector4D m_backgroundColorOff;
 
-	bool m_wireframe = false;
-	bool m_lightOn = false;
-	bool m_backfaceCulling = false;
+	bool m_wireframe;
+	bool m_lightOn;
+	bool m_backfaceCulling;
 
 	struct {
-		QVector4D position = { 1,1,1,0 };
-		QVector3D intensities = { 1.0,1.0,1.0 };
-		float attenuationFactor = 0.0f;
-		float ambientCoefficient = 0.005f;
-		bool headlight = false;
+		QVector4D position;
+		QVector3D intensities;
+		float attenuationFactor;
+		float ambientCoefficient;
+		bool headlight;
 	} m_light;
 
 	struct {
@@ -51,6 +51,7 @@ private:
 
 // functions
 private:
+	void setDefaultValues();
 	void initShaders();
 	void resetView();
 	void updateLightPosition();
@@ -89,5 +90,10 @@ public slots:
 	void setHeadlight(bool value);
 	void setBackfaceCulling(bool value);
 
+// signals
+signals:
+	void lightChanged(bool value);
+
+
 };
 

QtMeshViewer/Header/SettingsManager.h

@@ -0,0 +1,72 @@
+#pragma once
+#include <QObject>
+#include <QFile>
+#include <QVector3D>
+#include <QVector4D>
+
+
+class SettingsManager : public QObject
+{
+	Q_OBJECT
+
+private:
+	SettingsManager(QObject *parent = Q_NULLPTR);
+
+public:
+	SettingsManager(SettingsManager const&) = delete;
+	void operator=(SettingsManager const&) = delete;
+
+	~SettingsManager();
+
+	static SettingsManager* getInstance(QObject *parent = Q_NULLPTR);
+
+// attributes
+private:
+	QFile file;
+
+	QVector3D m_bgColorOn = { 5, 5, 5 };
+	QVector3D m_bgColorOff = { 128, 204, 255 };
+	bool m_bfCulling = false;
+	bool m_light = false;
+
+	int m_lightType = 1;	// 1 = direct, 2 = point
+	QVector3D m_lightColor = { 255,255,255 };
+	float m_attenuation = 0.0f;
+	float m_ambient = 0.005f;
+	bool m_headlight = false;
+	bool m_autoColor = true;
+
+// functions
+private:
+	void readFromFile();
+	void writeToFile();
+
+public:
+	QVector3D getBgColorOn() const;
+	QVector3D getBgColorOff() const;
+	bool isBfCulling() const;
+	bool isLight() const;
+
+	int getLightType() const;
+	QVector3D getLightColor() const;
+	float getAttenuation() const;
+	float getAmbient() const;
+	bool isHeadlight() const;
+	bool isAutoColor() const;
+
+
+// slots
+public:
+	void setBgColorOn(QVector3D value);
+	void setBgColorOff(QVector3D value);
+	void setBfCulling(bool value);
+	void setLight(bool value);
+
+	void setLightType(int value);
+	void setLightColor(QVector3D value);
+	void setAttenuation(double value);
+	void setAmbient(double value);
+	void setHeadlight(bool value);
+	void setAutoColor(int value);
+
+};

QtMeshViewer/Header/SettingsWindow.h

@@ -9,7 +9,7 @@ class SettingsWindow : public QWidget
 	Q_OBJECT
 
 public:
-	SettingsWindow(QVector3D bgOffColor, QVector3D bgOnColor, QVector3D lightColor, bool autoColor, double ambCoef, double attFac, int lightType, QWidget * parent = Q_NULLPTR);
+	SettingsWindow(QWidget * parent = Q_NULLPTR);
 	~SettingsWindow();
 
 private:
@@ -33,5 +33,6 @@ signals:
 	void sendHeadlight(bool value);
 	void sendBackfaceCulling(bool value);
 	void sendZommSpeed(int percent);
+	void changeLightType(int value);
 	
 };