PropertyDispatcher Class

public class PropertyDispatcher extends java.lang.Object {
    // Constructor
    public PropertyDispatcher(Behavior a);

    // Methods
    public void detach();
    public Behavior getBvr();
    public Behavior notify(int, boolean, double, double, Behavior, Behavior);
    public void setControl(Object object);
    public void setPropertyName(String name);
}

This class allows DirectAnimation behaviors to be attached to (and detached from) properties in ActiveX controls. For example, a NumberBvr can be attached to the width property of a frame on an HTML page.

• PropertyDispatcher Constructor
• PropertyDispatcher Methods

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PropertyDispatcher Constructor

PropertyDispatcher Class

Constructs a PropertyDispatcher object.

public PropertyDispatcher(
  Behavior a
  );

Parameters

a

The behavior to be attached to an ActiveX control property.

Remarks

Th behavior specified by a is used only in the constructor. To attach a behavior to a property, first create the PropertyDispatcher class with that behavior, and then extract an equivalent behavior with getBvr(). Use this behavior in the model. When access to the control and its property name is available, call setControl() and setPropertyName(). Here is an example:

NumberBvr n = the behavior that will be attached to a control
PropertyDispatcher pd = new PropertyDispatcher(n);
NumberBvr attachedN = (NumberBvr)pd.getBvr();

//...At some other point

pd.setControl(ctrl);
pd.setPropertyName("width");

Note that the attachedN behavior must be running to affect the attached property. The behavior is running if:

• It is part of the image or sound registered with setImage() or setSound() on the model.
• It was explicitly added to a BvrsToRun list.

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PropertyDispatcher Methods

detach

getBvr

setControl

setPropertyName

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detach

PropertyDispatcher Class

Detaches an already attached behavior from an ActiveX control property.

public void detach( );

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getBvr

PropertyDispatcher Class

Returns a behavior that, while it is the same as the behavior used in the constructor, is updated over time. This is the behavior that should be used once the PropertyDispatcher object has been constructed.

public Behavior getBvr( );

Return Values

Returns the Behavior object.

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setControl

PropertyDispatcher Class

Sets the ActiveX control object to which a behavior will be attached.

public void setControl(
  Object object
  );

Parameters

object

The ActiveX control object to which a behavior will be attached.

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setPropertyName

PropertyDispatcher Class

Sets the name of the ActiveX control property to which a DirectAnimation behavior will be attached.

public void setPropertyName(
  String name
  );

Parameters

name

The name of the property to which a DirectAnimation behavior will be attached.

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