Package com.ms.ui

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Interface IUILayoutManager

public interface IUILayoutManager extends LayoutManager
{
  // Methods
  public int continueInvalidate();
  public boolean continueInvalidate(Component comp);
  public void paintContainer(Container cont, Graphics g);
  public Component navigate(Container cont, Component comp, int direction,
                            boolean keyable);

  public Component getComponent(Container cont, int index);
  public Component getLayoutComponent(String name);

}

Defines an interface for the extensions to LayoutManager interface. UILayoutManager implements this interface.

Methods

continueInvalidate

public int continueInvalidate();

Determines whether the container should be invalidated when a child component is invalidated.

Return Value:

Returns 1 if the container should be invalidated, -1 if the container should not invalidated, or 0 if each component must be queried individually.

continueInvalidate

public boolean continueInvalidate(Component comp);

Determines whether the container should be invalidated when a child component is invalidated.

Return Value:

Returns true if the container should be invalidated; otherwise, returns false.

Parameter	Description
comp	The component being invalidated.

getComponent

public Component getComponent(Container cont, int index);

Retrieves the component at the specified index.

Return Value:

Returns the specified component, or null if no component is found.

Parameter	Description
cont	The container to retrieve the component from.
index	The index of component to retrieve.

getLayoutComponent

public Component getLayoutComponent(String name);

Retrieves the component identified by the specified name.

Return Value:

Returns the specified component.

Parameter	Description
name	The name identifying the component to retrieve.

navigate

public Component navigate(Container cont, Component comp, int direction, boolean keyable);

Navigates to another component from the specified component in the given direction.

Return Value:

Returns the component navigated to, or null if no component in the specified direction exists.

Parameter	Description
cont	The container where navigation is occurring.
comp	The component to navigate from.
direction	The direction (logically or spatially) to navigate.
keyable	If true, non-keyable components will be ignored during the navigation; otherwise, all components can be navigated to.

paintContainer

public void paintContainer(Container cont, Graphics g);

Paints into the container as needed.

Return Value:

No return value.

Parameter	Description
cont	The container.
g	The graphics context of the container to be used for painting.