version 2.13.0

add Map library (MapView with OSM maps and items) and mapviewer util

libs/map/mapitempolygon.cpp

@@ -0,0 +1,24 @@
+#include "mapitempolygon.h"
+
+
+MapItemPolygon::MapItemPolygon(const QPolygonF & p) {
+	setPolygon(p);
+}
+
+
+void MapItemPolygon::setPolygon(const QPolygonF & p) {
+	pol = p;
+	updateParent();
+}
+
+
+void MapItemPolygon::draw(QPainter * p) {
+	p->setPen(pen());
+	p->setBrush(brush());
+	QPolygonF dp(pol);
+	double us = unitScale();
+	for (auto & i: dp)
+		i = QPointF(i.x(), -i.y()) / us;
+	p->drawPolygon(dp);
+	setBoundingRect(dp.boundingRect());
+}