--- a/QTfrontend/ui/widget/drawmapwidget.cpp	Sun Jun 10 18:56:51 2018 +0200
+++ b/QTfrontend/ui/widget/drawmapwidget.cpp	Sun Jun 10 19:12:26 2018 +0200
@@ -56,12 +56,16 @@
 
     ui->graphicsView->setScene(scene);
     connect(scene, SIGNAL(pathChanged()), this, SLOT(pathChanged()));
+    connect(scene, SIGNAL(brushSizeChanged(int)), this, SLOT(brushSizeChanged_slot(int)));
 }
 
 void DrawMapWidget::resizeEvent(QResizeEvent * event)
 {
     Q_UNUSED(event);
 
+	if(!m_scene)
+		return;
+		
     int height = this->height();
     int width = this->width();
 
@@ -133,6 +137,11 @@
     if(m_scene) m_scene->setPathType(pathType);
 }
 
+void DrawMapWidget::setBrushSize(int brushSize)
+{
+    if(m_scene) m_scene->setBrushSize(brushSize);
+}
+
 void DrawMapWidget::save(const QString & fileName)
 {
     if(m_scene)
@@ -179,7 +188,10 @@
     ui->lblPoints->setNum(m_scene->pointsCount());
 }
 
-
+void DrawMapWidget::brushSizeChanged_slot(int brushSize)
+{
+    emit brushSizeChanged(brushSize);
+}
 
 DrawMapView::DrawMapView(QWidget *parent) :
     QGraphicsView(parent)