modelverse_GUI/models/render_SCD.alc

include "primitives.alh"
include "modelling.alh"
include "object_operations.alh"

Boolean function main(model : Element):
	Element elements
	String class
	Element attrs
	Element attr_keys
	String attr_key
	String group
	String elem
	Integer loc
	Integer text_loc
	loc = 10

	Element groups
	groups = dict_create()

	elements = allInstances(model, "abstract/Class")
	while (set_len(elements) > 0):
		class = set_pop(elements)
		
		Integer x
		Integer y
		x = loc
		y = 10

		// Check if there is already an associated element
		if (set_len(allOutgoingAssociationInstances(model, class, "TracabilityClass")) > 0):
			// Yes, but is it still clean?
			Element related_groups
			Boolean dirty
			dirty = False

			related_groups = allAssociationDestinations(model, class, "TracabilityClass")
			while (set_len(related_groups) > 0):
				group = set_pop(related_groups)
				if (value_eq(read_attribute(model, group, "dirty"), True)):
					// No, so mark all as dirty
					dirty = True
					break!
				else:
					// Yes, so just ignore this!
					continue!

			if (bool_not(dirty)):
				dict_add(groups, class, group)
				continue!
			else:
				related_groups = allAssociationDestinations(model, class, "TracabilityClass")
				Element to_remove
				String elem_to_remove
				while (set_len(related_groups) > 0):
					group = set_pop(related_groups)
					to_remove = allAssociationDestinations(model, group, "rendered/contains")
					x = create_value(read_attribute(model, group, "x"))
					y = create_value(read_attribute(model, group, "y"))
					while (set_len(to_remove) > 0):
						elem_to_remove = set_pop(to_remove)
						if (read_type(model, elem_to_remove) == "rendered/Group"):
							set_add(to_remove, elem_to_remove)
						else:
							model_delete_element(model, elem_to_remove)
					model_delete_element(model, group)

		attr_keys = dict_keys(getAttributeList(model, class))
		text_loc = 5

		group = instantiate_node(model, "rendered/Group", "")
		instantiate_attribute(model, group, "x", x)
		instantiate_attribute(model, group, "y", y)
		instantiate_attribute(model, group, "__asid", list_read(string_split(class, "/"), 1))
		dict_add(groups, class, group)
		loc = loc + 200

		elem = instantiate_node(model, "rendered/Rectangle", "")
		instantiate_attribute(model, elem, "x", 0)
		instantiate_attribute(model, elem, "y", 0)
		instantiate_attribute(model, elem, "height", 40 + set_len(getInstantiatableAttributes(model, class, "abstract/AttributeLink")) * 20)
		instantiate_attribute(model, elem, "width", 150)
		instantiate_attribute(model, elem, "lineWidth", 2) 
		instantiate_attribute(model, elem, "lineColour", "black")
		instantiate_attribute(model, elem, "fillColour", "white")
		instantiate_link(model, "rendered/contains", "", group, elem)

		String multiplicities
		String lower_card
		String upper_card
		if (element_eq(read_attribute(model, class, "lower_cardinality"), read_root())):
			lower_card = "*"
		else:
			lower_card = cast_v2s(read_attribute(model, class, "lower_cardinality"))
		if (element_eq(read_attribute(model, class, "upper_cardinality"), read_root())):
			upper_card = "*"
		else:
			upper_card = cast_v2s(read_attribute(model, class, "upper_cardinality"))
		multiplicities = ((("[" + lower_card) + "..") + upper_card) + "]"

		elem = instantiate_node(model, "rendered/Text", "")
		instantiate_attribute(model, elem, "x", 5)
		instantiate_attribute(model, elem, "y", 3)
		instantiate_attribute(model, elem, "lineWidth", 1)
		instantiate_attribute(model, elem, "lineColour", "black")
		instantiate_attribute(model, elem, "text", string_join(list_read(string_split(class, "/"), 1), "  " + multiplicities))
		instantiate_link(model, "rendered/contains", "", group, elem)

		elem = instantiate_node(model, "rendered/Line", "")
		instantiate_attribute(model, elem, "x", 0)
		instantiate_attribute(model, elem, "y", 20)
		instantiate_attribute(model, elem, "targetX", 150)
		instantiate_attribute(model, elem, "targetY", 20)
		instantiate_attribute(model, elem, "lineWidth", 1)
		instantiate_attribute(model, elem, "lineColour", "black")
		instantiate_attribute(model, elem, "arrow", False)
		instantiate_link(model, "rendered/contains", "", group, elem)

		attrs = getInstantiatableAttributes(model, class, "abstract/AttributeLink")
		attr_keys = dict_keys(attrs)
		while (dict_len(attr_keys) > 0):
			attr_key = set_pop(attr_keys)
			elem = instantiate_node(model, "rendered/Text", "")
			instantiate_attribute(model, elem, "x", 5)
			instantiate_attribute(model, elem, "y", text_loc + 20)
			instantiate_attribute(model, elem, "lineWidth", 1)
			instantiate_attribute(model, elem, "lineColour", "black")
			instantiate_attribute(model, elem, "text", (attr_key + " : ") + cast_v2s(list_read(string_split(attrs[attr_key], "/"), 1)))
			instantiate_link(model, "rendered/contains", "", group, elem)
			text_loc = text_loc + 15

		instantiate_link(model, "TracabilityClass", "", class, group)

	// Flush all associations
	elements = allInstances(model, "rendered/ConnectingLine")
	while (set_len(elements) > 0):
		class = set_pop(elements)
		model_delete_element(model, class)

	// Rerender associations
	elements = allInstances(model, "abstract/Association")
	while (set_len(elements) > 0):
		class = set_pop(elements)

		attr_keys = dict_keys(getAttributeList(model, class))

		elem = instantiate_link(model, "rendered/ConnectingLine", "", groups[readAssociationSource(model, class)], groups[readAssociationDestination(model, class)])
		instantiate_attribute(model, elem, "offsetSourceX", 0)
		instantiate_attribute(model, elem, "offsetSourceY", 0)
		instantiate_attribute(model, elem, "offsetTargetX", 0)
		instantiate_attribute(model, elem, "offsetTargetY", 0)
		instantiate_attribute(model, elem, "lineWidth", 1)
		instantiate_attribute(model, elem, "lineColour", "black")
		instantiate_attribute(model, elem, "arrow", True)
		instantiate_attribute(model, elem, "__asid", list_read(string_split(class, "/"), 1))
		log("Found ASID " + cast_v2s(list_read(string_split(class, "/"), 1)))
		instantiate_link(model, "rendered/contains", "", group, elem)

	return True!