Detailed Description
LayoutVisitor is used to position a tree of objects on a plane (the objects must implement the getParent()).
It uses a simple algorithm that positions the objects on a discrete array with distance 1 so that all leaves are equal distant from their neighbours. The positions are stored in a map that is provided by the getMap() method.
Definition at line 25 of file LayoutVisitor.php.
Inheritance diagram for LayoutVisitor:Public Member Functions | |
| __construct () | |
| visit ($obj) | |
| getMap () | |
| flip () | |
| Public Member Functions inherited from Visitor | |
| startIterator (NodeIterator $iterator) | |
| startArray ($array) | |
| visit ($obj) | |
| doPreVisit () | |
| doPostVisit () | |
Public Attributes | |
| const | MAPTYPE_HORIZONTAL = 0 |
| const | MAPTYPE_VERTICAL = 1 |
Constructor & Destructor Documentation
| __construct | ( | ) |
Constructor.
Definition at line 35 of file LayoutVisitor.php.
Member Function Documentation
| visit | ( | $obj | ) |
Visit the current object in iteration and position it on the map.
- Parameters
-
$obj A reference to the current object.
Definition at line 44 of file LayoutVisitor.php.
| getMap | ( | ) |
Visit the current object in iteration and position it on the map.
- Returns
- The object map as assioziative array (key: object Id, value: Position). map["type"] = MAPTYPE_HORIZONTAL | MAPTYPE_VERTICAL
Definition at line 53 of file LayoutVisitor.php.
| flip | ( | ) |
Flip layout (x <-> y).
Definition at line 60 of file LayoutVisitor.php.
Member Data Documentation
| const MAPTYPE_HORIZONTAL = 0 |
Definition at line 27 of file LayoutVisitor.php.
| const MAPTYPE_VERTICAL = 1 |
Definition at line 28 of file LayoutVisitor.php.