com.qoppa.pdf

Class Layer

java.lang.Object

com.qoppa.pdf.Layer

public abstract class Layer
extends Object

This class represents a PDF 'Layer'.

Author:

Qoppa Software

Field Summary

Fields

Modifier and Type	Field and Description
static int	STATE_OFF
static int	STATE_ON

Constructor Summary

Constructors

Constructor and Description
Layer()

Method Summary

Methods

Modifier and Type	Method and Description
abstract void	addLayerListener(LayerListener l) Adds an object that will listen to changes in the layer's visible state.
abstract String	getName() Returns the name of this layer.
abstract boolean	isVisible() Returns whether this layer is currently visible.
abstract void	removeLayerListener(LayerListener l) Removes a layer listener from the list of active listeners.
abstract void	setVisible(boolean visible) Sets the visibility for this layer.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

STATE_OFF

public static final int STATE_OFF

See Also:

Constant Field Values

STATE_ON

public static final int STATE_ON

See Also:

Constant Field Values

Constructor Detail

Layer

public Layer()

Method Detail

getName

public abstract String getName()

Returns the name of this layer.

Returns:

The name of the layer.

isVisible

public abstract boolean isVisible()

Returns whether this layer is currently visible.

Returns:

Layer's visibility.

setVisible

public abstract void setVisible(boolean visible)

Sets the visibility for this layer.

Parameters:

visible - The new visibility.

addLayerListener

public abstract void addLayerListener(LayerListener l)

Adds an object that will listen to changes in the layer's visible state. All listeners will be notified when a layer is made visible or invisible.

Parameters:

l - The new layer listener.

removeLayerListener

public abstract void removeLayerListener(LayerListener l)

Removes a layer listener from the list of active listeners.

Parameters:

l - The listener to remove.