Break up mapmodel.py monolith.

qt_ui/widgets/map/model/shapelyutil.py

@@ -0,0 +1,39 @@
+from typing import Union
+
+from dcs import Point
+from shapely.geometry import LineString, MultiLineString, MultiPolygon, Polygon
+
+from game.theater import ConflictTheater
+from .leaflet import LeafletLatLon, LeafletPoly
+
+
+class ShapelyUtil:
+    @staticmethod
+    def poly_to_leaflet(poly: Polygon, theater: ConflictTheater) -> LeafletPoly:
+        if poly.is_empty:
+            return []
+        return [
+            theater.point_to_ll(Point(x, y)).as_list() for x, y in poly.exterior.coords
+        ]
+
+    @classmethod
+    def polys_to_leaflet(
+        cls, poly: Union[Polygon, MultiPolygon], theater: ConflictTheater
+    ) -> list[LeafletPoly]:
+        if isinstance(poly, MultiPolygon):
+            polys = poly.geoms
+        else:
+            polys = [poly]
+        return [cls.poly_to_leaflet(poly, theater) for poly in polys]
+
+    @staticmethod
+    def line_to_leaflet(
+        line: LineString, theater: ConflictTheater
+    ) -> list[LeafletLatLon]:
+        return [theater.point_to_ll(Point(x, y)).as_list() for x, y in line.coords]
+
+    @classmethod
+    def lines_to_leaflet(
+        cls, lines: MultiLineString, theater: ConflictTheater
+    ) -> list[list[LeafletLatLon]]:
+        return [cls.line_to_leaflet(line, theater) for line in lines.geoms]