add OuputDevice as singleton to manage output to statusbar,

QtMeshViewer/Header/FileInterface.h

@@ -1,5 +1,4 @@
 #pragma once
-#include <QObject>
 #include <QOpenGlTexture>
 #include <fstream>
 #include <QVector>
@@ -7,7 +6,6 @@
 #include <QMatrix4x4>
 #include <QQuaternion>
 #include <QRegExp>
-#include "MainWindow.h"
 
 struct BoundingBox {
 	QQuaternion rotation;
@@ -54,14 +52,12 @@ struct Material {
 	std::uint8_t dataValues[2] = { 0 };
 };
 
-class FileInterface : public QObject
+class FileInterface
 {
-	Q_OBJECT
 
 public:
-	explicit FileInterface(QString path, QObject *parent)
-		: QObject(parent)
-		, m_models(new QVector<Model*>)
+	explicit FileInterface(QString path)
+		: m_models(new QVector<Model*>)
 		, m_materials(new QVector<Material>)
 	{
 		//open file
@@ -70,10 +66,6 @@ public:
 		if (!m_file.is_open())
 			throw std::invalid_argument(std::string("ERROR: file not found: ") += path.toStdString());
 
-		MainWindow* tmp = dynamic_cast<MainWindow*>(parent->parent()->parent());
-		if(tmp != NULL)
-			connect(this, SIGNAL(sendMessage(QString, int)), tmp, SLOT(printMessage(QString, int)));
-
 		m_filepath = path.left(path.lastIndexOf(QRegExp("/|\\\\")));
 
 	};
@@ -138,6 +130,4 @@ public:
 		return defMaterial;
 	};
 
-signals:
-	void sendMessage(QString msg, int severity);
 };