/**
* This will reload all positions of all vertices in the layout's graph. It will not reload if the
* used layout type does not match the saved one. (the position of x/y in a circle is not valid
* for x/y in a tree).
*
* @param layout
* @param type
* @param properties
* @param category
*/
private static void reloadAllVerticesPositions(
final Layout<DatabaseObject, Relation> layout,
final LayoutType type,
final ConnectionProperties properties,
final AttributeMapSet category) {
final Collection<DatabaseObject> vertices = layout.getGraph().getVertices();
if (vertices.isEmpty()) {
return;
}
for (final DatabaseObject object : vertices) {
// If special positions contained in properties' attributes map, use them.
if (properties != null) {
final ConnectionAttributesMap attributes = properties.getAttributesMap(category, object);
final int newPosX = attributes.getPositionX();
final int newPosY = attributes.getPositionY();
final String oldLayout = attributes.getLayout();
// Is this the same layout?
if (oldLayout.isEmpty() || oldLayout.equalsIgnoreCase(type.toString())) {
// Are this valid number values?
if ((newPosX > 0) && (newPosY > 0)) {
layout.setLocation(object, new Point2D.Double(newPosX, newPosY));
}
}
}
}
}