many changes :P

mapview/tools/ToolMapGrid.h

@@ -5,12 +5,23 @@
 
 class ToolMapGrid : public Tool {
 
+private:
+
+	bool show = true;
+
 public:
 
+	virtual void keyPressEvent(MapView2D* m, QKeyEvent* e) {
+		(void) m;
+		if (e->key() == Qt::Key_NumberSign) { show = !show; }
+	}
+
 	void paintBefore(MapView2D* m, Painter& p) override {
 
 		(void) m;
 
+		if (!show) {return;}
+
 		static const QColor cB(250,250,250);
 		static const QColor cN(235,235,235);
 		static const QColor c0(128,128,128);

mapview/tools/ToolRuler.h

@@ -86,11 +86,9 @@ public:
 		p.p->drawLine(mouseX, 0, mouseX, rs);
 
 
-
 		p.setPenBrush(Qt::black, Qt::NoBrush);
 		char buf[128];
 
-
 		// y-axis
 		p.p->setClipRect(ry);
 		for (float y = r.y0; y <= r.y1; y += step) {
@@ -131,6 +129,7 @@ public:
 			p.p->drawText(xMajor+2, 18, buf);
 		}
 
+
 		p.p->setClipping(false);
 
 	}

mapview/tools/ToolSelector.h

@@ -39,6 +39,7 @@ public:
 		// get all elements with bounding-box matchings
 		std::vector<MapModelElement*> possible;
 		for (MapModelElement* el : m->getModel()->getSelectedLayerElements()) {
+			if (!el->getMV2D()) {continue;}
 			BBox2 bbox = el->getMV2D()->getBoundingBox();					// elements 3D bbox
 			bbox.grow(Point2(g, g));							// grow a little (needed for straight lines)
 			if (bbox.contains(p2)) {possible.push_back(el);}	// intersection?