Method isPointOnObject

src/core/objects/object.cpp:622–653

int Object::isPointOnObject(const MapCoordF& coord, qreal tolerance, bool treat_areas_as_paths, bool extended_selection) const
{
	Symbol::Type type = symbol->getType();
	auto contained_types = symbol->getContainedTypes();
	
	// Points
	if (type == Symbol::Point)
	{
		if (extended_selection)
			return extent.contains(coord) ? Symbol::Point : Symbol::NoSymbol;
		
		return (coord.distanceSquaredTo(MapCoordF(coords[0])) <= tolerance) ? Symbol::Point : Symbol::NoSymbol;
	}
	
	// First check using extent
	auto extent_extension = ((contained_types & Symbol::Line) || treat_areas_as_paths) ? tolerance : 0;
	if (coord.x() < extent.left() - extent_extension) return Symbol::NoSymbol;
	if (coord.y() < extent.top() - extent_extension) return Symbol::NoSymbol;
	if (coord.x() > extent.right() + extent_extension) return Symbol::NoSymbol;
	if (coord.y() > extent.bottom() + extent_extension) return Symbol::NoSymbol;
	
	if (type == Symbol::Text)
	{
		// Texts
		auto const* text_object = static_cast<TextObject const*>(this);
		return (text_object->calcTextPositionAt(coord, true) != -1) ? Symbol::Text : Symbol::NoSymbol;
	}
	
	// Path objects
	auto const* path = static_cast<PathObject const*>(this);
	return path->isPointOnPath(coord, tolerance, treat_areas_as_paths, true);
}

void Object::takeRenderables()
{