snapshot function is back !!

include/Utils/Qt/qtSimple.h

@@ -396,6 +396,8 @@ public:
 	 */
 	std::string selectFileSave(const std::string& title = "open file", const std::string& dir =  ".", const std::string& filters = "all (*.*)");
 
+	void snapshot(const QString& filename);
+
 public slots:
 	virtual void cb_New() { std::cerr << "callback not implemented" << std::endl; }
 	virtual void cb_Open() { std::cerr << "callback not implemented" << std::endl; }

src/Utils/Qt/qtSimple.cpp

@@ -30,6 +30,7 @@
 #include "glm/gtc/type_ptr.hpp"
 
 #include <QtGui/QTextEdit>
+#include <QImage>
 
 namespace CGoGN
 {
@@ -513,6 +514,12 @@ void SimpleQT::cb_about()
    QMessageBox::about(this, tr("About App"), m_helpString.c_str());
 }
 
+void SimpleQT::snapshot(const QString& filename)
+{
+	QImage im = m_glWidget->grabFrameBuffer(false);
+	im.save(filename);
+}
+
 } // namespace QT
 
 } // namespace Utils