Merge tag '13.0-beta2' into jgrpp

# Conflicts:
#	src/cheat_gui.cpp
#	src/company_gui.cpp
#	src/console_gui.cpp
#	src/depot_gui.cpp
#	src/error_gui.cpp
#	src/gfx.cpp
#	src/graph_gui.cpp
#	src/group_gui.cpp
#	src/lang/english.txt
#	src/lang/korean.txt
#	src/lang/polish.txt
#	src/misc_gui.cpp
#	src/network/network_content_gui.h
#	src/newgrf_debug_gui.cpp
#	src/order_gui.cpp
#	src/rail_gui.cpp
#	src/road_gui.cpp
#	src/settings_gui.cpp
#	src/settings_type.h
#	src/station_gui.cpp
#	src/subsidy_gui.cpp
#	src/table/settings/gui_settings.ini
#	src/timetable_gui.cpp
#	src/town_gui.cpp
#	src/train_cmd.cpp
#	src/vehicle_gui.cpp
#	src/viewport.cpp
#	src/water_cmd.cpp
#	src/widgets/dropdown.cpp
#	src/window_gui.h

src/core/geometry_type.hpp

@@ -208,6 +208,17 @@ struct Rect {
 			? Rect {this->left, this->bottom - height + 1, this->right, this->bottom}
 			: Rect {this->left, this->top,                 this->right, this->top + height - 1};
 	}
+
+	/**
+	 * Test if a point falls inside this Rect.
+	 * @param pt the point to test.
+	 * @return true iif the point falls inside the Rect.
+	 */
+	inline bool Contains(const Point &pt) const
+	{
+		/* This is a local version of IsInsideMM, to avoid including math_func everywhere. */
+		return (uint)(pt.x - this->left) < (uint)(this->right - this->left) && (uint)(pt.y - this->top) < (uint)(this->bottom - this->top);
+	}
 };
 
 struct Rect16 {