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## org.apache.fop.area
Class RegionViewport

    java.lang.Object
      org.apache.fop.area.AreaTreeObject
          org.apache.fop.area.Area
              org.apache.fop.area.RegionViewport

All Implemented Interfaces:
  java.io.Serializable, java.lang.Cloneable, Viewport

    public class RegionViewport

extends Area
implements Viewport

Region Viewport area. This object represents the region-viewport-area. It has a region-reference-area as its child. These areas are described in the fo:region-body description in the XSL Recommendation.

See Also:
  Serialized Form

Field Summary

Fields inherited from class org.apache.fop.area.Area
`bidiLevel, bpd, CLASS_ABSOLUTE, CLASS_BEFORE_FLOAT, CLASS_FIXED, CLASS_FOOTNOTE, CLASS_MAX, CLASS_NORMAL, CLASS_SIDE_FLOAT, effectiveIPD, ipd, log, ORIENT_0, ORIENT_180, ORIENT_270, ORIENT_90, traits`

Fields inherited from class org.apache.fop.area.AreaTreeObject
`extensionAttachments, foreignAttributes`

Constructor Summary
`RegionViewport(java.awt.geom.Rectangle2D viewArea)` Create a new region-viewport-area

Method Summary
`java.lang.Object` | `clone()`
`java.awt.Rectangle` | `getClipRectangle()` Returns the clipping rectangle of this viewport area.
`RegionReference` | `getRegionReference()` Get the region-reference-area for this region viewport.
`java.awt.geom.Rectangle2D` | `getViewArea()` Get the view area of this viewport.
`boolean` | `hasClip()` Returns true if this area will clip overflowing content.
`void` | `setClip(boolean c)` Set the clipping for this region viewport.
`void` | `setRegionReference(RegionReference reg)` Set the region-reference-area for this region viewport.
`void` | `setWritingModeTraits(WritingModeTraitsGetter wmtg)` Sets the writing mode traits for the region reference of this region viewport

Methods inherited from class org.apache.fop.area.Area
`activateEffectiveIPD, addChildArea, addTrait, getAllocBPD, getAllocIPD, getAreaClass, getBidiLevel, getBorderAndPaddingWidthAfter, getBorderAndPaddingWidthBefore, getBorderAndPaddingWidthEnd, getBorderAndPaddingWidthStart, getBPD, getEffectiveAllocIPD, getEffectiveIPD, getIPD, getSpaceAfter, getSpaceBefore, getSpaceEnd, getSpaceStart, getTrait, getTraitAsBoolean, getTraitAsInteger, getTraits, hasTrait, hasTraits, resetBidiLevel, setAreaClass, setBidiLevel, setBPD, setIPD, setTraits, toString`

Methods inherited from class org.apache.fop.area.AreaTreeObject
`addExtensionAttachment, getExtensionAttachments, getForeignAttributes, getForeignAttributeValue, hasExtensionAttachments, setExtensionAttachments, setForeignAttribute, setForeignAttributes`

Methods inherited from class java.lang.Object
`equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Constructor Detail

### RegionViewport

    public RegionViewport(java.awt.geom.Rectangle2D viewArea)

  Create a new region-viewport-area

  Parameters:
    `viewArea` - the view area of this viewport

Method Detail

### setRegionReference

    public void setRegionReference(RegionReference reg)

  Set the region-reference-area for this region viewport.

  Parameters:
    `reg` - the child region-reference-area inside this viewport

### getRegionReference

    public RegionReference getRegionReference()

  Get the region-reference-area for this region viewport.

  Returns:
    the child region-reference-area inside this viewport

### setClip

    public void setClip(boolean c)

  Set the clipping for this region viewport.

  Parameters:
    `c` - the clipping value

### hasClip

    public boolean hasClip()

  Returns true if this area will clip overflowing content.

  Specified by:
    `hasClip` in interface `Viewport`
  Returns:
    `true` if the overflow trait has the value "hidden", "scroll" or "error-if-overflow"

### getClipRectangle

    public java.awt.Rectangle getClipRectangle()

  Returns the clipping rectangle of this viewport area.

  Specified by:
    `getClipRectangle` in interface `Viewport`
  Returns:
    the clipping rectangle expressed in the viewport's coordinate system, or null if clipping is disabled

### getViewArea

    public java.awt.geom.Rectangle2D getViewArea()

  Get the view area of this viewport.

  Returns:
    the viewport rectangle area

### clone

    public java.lang.Object clone()
                           throws java.lang.CloneNotSupportedException

  Overrides:
    `clone` in class `Area`
  Throws:
    `java.lang.CloneNotSupportedException`

### setWritingModeTraits

    public void setWritingModeTraits(WritingModeTraitsGetter wmtg)

  Sets the writing mode traits for the region reference of this region viewport

  Overrides:
    `setWritingModeTraits` in class `Area`
  Parameters:
    `wmtg` - a WM traits getter

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