Packageorg.openzoom.flash.viewport.constraints
Classpublic final class NullConstraint
ImplementsIViewportConstraint

NullConstraint doesn't aplly any constraints to a viewport. Null Object Pattern applied to IViewportConstraint.


Public Methods
 MethodDefined by
  
NullConstraint()
Constructor.
NullConstraint
  
validate(transform:IViewportTransform, target:IViewportTransform):IViewportTransform
Validate the viewport transform by performing transformations until it validates all constraints.
NullConstraint
Constructor detail
NullConstraint()constructor
public function NullConstraint()

Constructor.

Method detail
validate()method
public function validate(transform:IViewportTransform, target:IViewportTransform):IViewportTransform

Validate the viewport transform by performing transformations until it validates all constraints.

Parameters
transform:IViewportTransform — IViewportTransform object to be validated.
 
target:IViewportTransform — IViewportTransform object that represents the last validated transform.

Returns
IViewportTransform — Validated IViewportTransform object.