version 2.13.0

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

libs/map/mapitemnongeogeometrybase.h

@@ -0,0 +1,49 @@
+/*
+    QAD - Qt ADvanced
+
+	Ivan Pelipenko peri4ko@yandex.ru
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef mapitemnongeogeometrybase_h
+#define mapitemnongeogeometrybase_h
+
+#include "mapitemgeometrybase.h"
+
+
+/// ellipse in meters, based on map scale at "position"
+/// north = 0 deg, positive is clockwise
+class QAD_MAP_EXPORT MapItemNonGeoGeometryBase: public MapItemGeometryBase {
+public:
+	enum Units {
+		Meters,
+		Pixels
+	};
+
+	Units units() const { return m_units; }
+	void setUnits(Units u);
+
+protected:
+	void zoomChanged() override;
+	double unitScale() const;
+
+
+private:
+	Units m_units = Meters;
+	double px2m   = 1.;
+};
+
+
+#endif