org.jfree.layouting.renderer.model
Class SpacerRenderNode

java.lang.Object
  extended by org.jfree.layouting.renderer.model.RenderNode
      extended by org.jfree.layouting.renderer.model.SpacerRenderNode
All Implemented Interfaces:
java.lang.Cloneable
Direct Known Subclasses:
TableColumnNode

public class SpacerRenderNode
extends RenderNode

A spacer reserves space for whitespaces found in the text. When encountered at the beginning or end of lines, it gets removed.

Spacers are always considered discardable, so when encountered alone, they will get pruned.

Author:
Thomas Morgner

Field Summary
 
Fields inherited from class org.jfree.layouting.renderer.model.RenderNode
HORIZONTAL_AXIS, VERTICAL_AXIS
 
Constructor Summary
SpacerRenderNode()
           
SpacerRenderNode(long width, long height, boolean preserve)
           
 
Method Summary
 boolean isDiscardable()
           
 boolean isEmpty()
           
 boolean isIgnorableForRendering()
          If that method returns true, the element will not be used for rendering.
 
Methods inherited from class org.jfree.layouting.renderer.model.RenderNode
appyStyle, clone, derive, deriveFrozen, findNodeById, freeze, getAlignmentAdjust, getAlignmentAdjustResolved, getAlignmentBaseline, getBaselineShift, getBaselineShiftResolved, getChangeTracker, getComputedLayoutProperties, getDimension, getEffectiveMarginBottom, getEffectiveMarginTop, getHeight, getInstanceId, getLayoutContext, getLogicalPage, getMajorAxis, getMaximumBoxWidth, getMinimumChunkWidth, getMinorAxis, getNamespace, getNext, getNodeLayoutProperties, getNormalFlow, getPageContext, getParent, getParentBlockContext, getPosition, getPrev, getStickyMarker, getTagName, getVerticalAlignment, getVisibleNext, getVisiblePrev, getWidth, getX, getY, hibernate, isDirectionLTR, isDirty, isFrozen, isHibernated, isIcmMetricsFinished, isOpen, normalizeAlignment, setComputedLayoutProperties, setDimension, setDirty, setHeight, setHibernated, setIcmMetricsFinished, setMajorAxis, setMaximumBoxWidth, setMinimumChunkWidth, setMinorAxis, setNext, setParent, setPosition, setPrev, setStickyMarker, setWidth, setX, setY, updateChangeTracker
 
Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

SpacerRenderNode

public SpacerRenderNode()

SpacerRenderNode

public SpacerRenderNode(long width,
                        long height,
                        boolean preserve)
Method Detail

isEmpty

public boolean isEmpty()
Overrides:
isEmpty in class RenderNode

isDiscardable

public boolean isDiscardable()
Overrides:
isDiscardable in class RenderNode

isIgnorableForRendering

public boolean isIgnorableForRendering()
If that method returns true, the element will not be used for rendering. For the purpose of computing sizes or performing the layouting (in the validate() step), this element will treated as if it is not there.

If the element reports itself as non-empty, however, it will affect the margin computation.

Overrides:
isIgnorableForRendering in class RenderNode
Returns: