sendMessage via signal plot from file to window,

add severity to messages (black, yellow, red),
add about text,
removed unused texture from resource

QtMeshViewer/Header/FileInterface.h

@@ -6,6 +6,8 @@
 #include <QMatrix4x4>
 #include <QQuaternion>
 #include <QOpenGLFunctions>
+#include <QObject>
+#include <..\Header\MainWindow.h>
 
 
 struct BoundingBox {
@@ -34,18 +36,27 @@ struct Model {
 	std::vector<Segment*> segmList;
 };
 
-class FileInterface
+class FileInterface : public QObject
 {
+	Q_OBJECT
+
 public:
-	explicit FileInterface(const char* path)
-		: m_models(new QVector<Model*>)
+	explicit FileInterface(const char* path, QObject *parent)
+		: QObject(parent)
+		, m_models(new QVector<Model*>)
 		, m_textureNames(new QVector<std::string>)
 	{
 		//open file
 		m_file.open(path, std::ios::in | std::ios::binary);
 
 		if (!m_file.is_open())
-			throw std::invalid_argument(std::string("file not found: ") += path);
+			throw std::invalid_argument(std::string("ERROR: file not found: ") += path);
+
+		MainWindow* tmp = dynamic_cast<MainWindow*>(parent->parent()->parent());
+		if(tmp != NULL)
+			connect(this, SIGNAL(sendMessage(QString, int)), tmp, SLOT(showMessage(QString, int)));
+
+
 	};
 
 	virtual ~FileInterface()
@@ -85,4 +96,7 @@ public:
 	virtual QVector<Model*>* getModels() const { return m_models; };
 	virtual QVector<std::string>* getTextureNames() const { return m_textureNames; };
 	virtual BoundingBox getBoundingBox() const { return m_sceneBbox; };
+
+signals:
+	void sendMessage(QString msg, int severity);
 };