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## org.apache.fop.afp.modca
Class ActiveEnvironmentGroup

    java.lang.Object
      org.apache.fop.afp.modca.AbstractAFPObject
          org.apache.fop.afp.modca.AbstractStructuredObject
              org.apache.fop.afp.modca.AbstractTripletStructuredObject
                  org.apache.fop.afp.modca.AbstractNamedAFPObject
                      org.apache.fop.afp.modca.AbstractEnvironmentGroup
                          org.apache.fop.afp.modca.ActiveEnvironmentGroup

All Implemented Interfaces:
  Streamable

public final class ActiveEnvironmentGroup
extends AbstractEnvironmentGroup

An Active Environment Group (AEG) is associated with each page, and is contained in the page's begin-end envelope in the data stream. The active environment group contains layout and formatting information that defines the measurement units and size of the page, and may contain resource information. Any objects that are required for page presentation and that are to be treated as resource objects must be mapped with a map structured field in the AEG. The scope of an active environment group is the scope of its containing page or overlay.

Nested Class Summary

Nested classes inherited from class org.apache.fop.afp.modca.AbstractAFPObject
`AbstractAFPObject.Category, AbstractAFPObject.Type`

Field Summary

Fields inherited from class org.apache.fop.afp.modca.AbstractEnvironmentGroup
`mapDataResources, mapPageOverlays`

Fields inherited from class org.apache.fop.afp.modca.AbstractNamedAFPObject
`name`

Fields inherited from class org.apache.fop.afp.modca.AbstractTripletStructuredObject
`triplets`

Fields inherited from class org.apache.fop.afp.modca.AbstractAFPObject
`log, SF_CLASS, SF_HEADER`

Constructor Summary
`ActiveEnvironmentGroup(Factory factory, java.lang.String name, int width, int height, int widthRes, int heightRes)` Constructor for the ActiveEnvironmentGroup, this takes a name parameter which must be 8 characters long.

Method Summary
`void` | `addMapPageSegment(java.lang.String name)`
`void` | `createFont(int fontRef, AFPFont font, int size, int orientation)` Method to create a map coded font object
`PageDescriptor` | `getPageDescriptor()` Accessor method to obtain the PageDescriptor object of the active environment group.
`PresentationTextDescriptor` | `getPresentationTextDataDescriptor()` Accessor method to obtain the PresentationTextDataDescriptor object of the active environment group.
`void` | `setObjectAreaPosition(int x, int y, int rotation)` Set the position of the object area
`void` | `writeContent(java.io.OutputStream os)` Helper method to write the contents of the Object.
`protected void` | `writeEnd(java.io.OutputStream os)` Helper method to write the end of the Object.
`protected void` | `writeStart(java.io.OutputStream os)` Helper method to write the start of the Object.

Methods inherited from class org.apache.fop.afp.modca.AbstractEnvironmentGroup
`createOverlay, getLastElement`

Methods inherited from class org.apache.fop.afp.modca.AbstractNamedAFPObject
`copySF, getName, getNameBytes, getNameLength, setName, toString`

Methods inherited from class org.apache.fop.afp.modca.AbstractTripletStructuredObject
`addTriplet, addTriplets, getFullyQualifiedName, getTripletDataLength, getTriplets, hasTriplet, hasTriplets, setComment, setFullyQualifiedName, setObjectClassification, writeTriplets`

Methods inherited from class org.apache.fop.afp.modca.AbstractStructuredObject
`writeToStream`

Methods inherited from class org.apache.fop.afp.modca.AbstractAFPObject
`copyChunks, copySF, truncate, writeChunksToStream, writeObjects`

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

Constructor Detail

### ActiveEnvironmentGroup

    public ActiveEnvironmentGroup(Factory factory,
                                  java.lang.String name,
                                  int width,
                                  int height,
                                  int widthRes,
                                  int heightRes)

  Constructor for the ActiveEnvironmentGroup, this takes a name parameter which must be 8 characters long.

Parameters:
  `factory` - the object factory
  `name` - the active environment group name
  `width` - the page width
  `height` - the page height
  `widthRes` - the page width resolution
  `heightRes` - the page height resolution

Method Detail

### setObjectAreaPosition

    public void setObjectAreaPosition(int x,
                                      int y,
                                      int rotation)

  Set the position of the object area

  Parameters:
    `x` - the x offset
    `y` - the y offset
    `rotation` - the rotation

### getPageDescriptor

    public PageDescriptor getPageDescriptor()

  Accessor method to obtain the PageDescriptor object of the active environment group.

  Returns:
    the page descriptor object

### getPresentationTextDataDescriptor

    public PresentationTextDescriptor getPresentationTextDataDescriptor()

  Accessor method to obtain the PresentationTextDataDescriptor object of the active environment group.

  Returns:
    the presentation text descriptor

### writeContent

    public void writeContent(java.io.OutputStream os)
                      throws java.io.IOException

  Helper method to write the contents of the Object.

  Overrides:
    `writeContent` in class `AbstractEnvironmentGroup`
  Throws:
    `java.io.IOException`

### writeStart

    protected void writeStart(java.io.OutputStream os)
                       throws java.io.IOException

  Helper method to write the start of the Object.

  Overrides:
    `writeStart` in class `AbstractStructuredObject`
  Parameters:
    `os` - The stream to write to
  Throws:
    `java.io.IOException` - throws an I/O exception if one occurred

### writeEnd

    protected void writeEnd(java.io.OutputStream os)
                     throws java.io.IOException

  Helper method to write the end of the Object.

  Overrides:
    `writeEnd` in class `AbstractStructuredObject`
  Parameters:
    `os` - The stream to write to
  Throws:
    `java.io.IOException` - an I/O exception if one occurred

### createFont

    public void createFont(int fontRef,
                           AFPFont font,
                           int size,
                           int orientation)

  Method to create a map coded font object

  Parameters:
    `fontRef` - the font number used as the resource identifier
    `font` - the font
    `size` - the point size of the font
    `orientation` - the orientation of the font (e.g. 0, 90, 180, 270)

### addMapPageSegment

    public void addMapPageSegment(java.lang.String name)

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