org.freehep.graphicsio.cgm
Class CGMTag

java.lang.Object
  org.freehep.util.io.Tag
      org.freehep.graphicsio.cgm.CGMTag

Direct Known Subclasses:

AlternateCharacterSetIndex, AppendText, ApplicationData, AspectSourceFlags, AuxiliaryColor, BackgroundColor, BeginFigure, BeginMetafile, BeginPicture, BeginPictureBody, BeginSegment, CellArray, CGMDummyTag, CharacterCodingAnnouncer, CharacterExpansionFactor, CharacterHeight, CharacterOrientation, CharacterSetIndex, CharacterSetList, CharacterSpacing, Circle, CircularArc3Point, CircularArcCentre, ClipIndicator, ClipRectangle, ColorIndexPrecision, ColorPrecision, ColorSelectionMode, ColorTable, ColorValueExtent, ConnectingEdge, EdgeBundleIndex, EdgeCap, EdgeColor, EdgeJoin, EdgeType, EdgeVisibility, EdgeWidth, EdgeWidthSpecificationMode, Ellipse, EndFigure, EndMetafile, EndPicture, EndSegment, Escape, FillBundleIndex, FillColor, FillReferencePoint, FontList, GeneralizedDrawingPrimitive, HatchIndex, IndexPrecision, IntegerPrecision, InteriorStyle, InteriorStyleSpecificationMode, LineBundleIndex, LineCap, LineColor, LineJoin, LineType, LineWidth, LineWidthSpecificationMode, MarkerBundleIndex, MarkerColor, MarkerSize, MarkerSizeSpecificationMode, MarkerType, MaximumColorIndex, MaximumVDCExtent, Message, MetafileDefaultsReplacement, MetafileDescription, MetafileElementList, MetafileVersion, MitreLimit, NamePrecision, NoOp, PatternIndex, PatternSize, PatternTable, PolygonSet, Polyline, RealPrecision, Rectangle, ScalingMode, SegmentPriorityExtent, TextAlignment, TextBundleIndex, TextColor, TextFontIndex, TextPath, TextPrecision, Transparency, TransparentCellColour, VDCExtent, VDCIntegerPrecision, VDCRealPrecision, VDCType

public abstract class CGMTag

extends Tag

CGM specific tag, from which all other CGM Tags inherit.

Version:

$Id: CGMTag.java,v 1.3 2003/12/01 16:54:17 duns Exp $

Author:

Mark Donszelmann, Charles Loomis

Source Code:

CGMTag.java

Field Summary

Fields inherited from class org.freehep.util.io.Tag

DEFAULT_TAG

Constructor Summary

protected

CGMTag(int elementClass, int id, int version) Constructs a CGMTag.

Method Summary

CGMTag	read(int tagID, CGMInputStream cgm, int len)
Tag	read(int tagID, TaggedInputStream input, int len) This reads the information from the given input and returns a new Tag
String	toString()
void	write(int tagID, CGMOutputStream cgm) Writes the extra tag information to the outputstream in binary format.
abstract void	write(int tagID, CGMWriter cgm) Writes the full tag to the Writer in Clear Text format.
void	write(int tagID, TaggedOutputStream output) This writes the information to the given output

Methods inherited from class org.freehep.util.io.Tag

getName, getTag, getTagType, getVersion

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

CGMTag

protected CGMTag(int elementClass,
                 int id,
                 int version)

Constructs a CGMTag.

Parameters:

elementClass - class of the element

id - id of the element

version - cgm version in which this element was first supported

Method Detail

read

public Tag read(int tagID,
                TaggedInputStream input,
                int len)
         throws IOException

Description copied from class: Tag

This reads the information from the given input and returns a new Tag

Specified by:

read in class Tag

Throws:

IOException

read

public CGMTag read(int tagID,
                   CGMInputStream cgm,
                   int len)
            throws IOException

Throws:

IOException

write

public void write(int tagID,
                  TaggedOutputStream output)
           throws IOException

Description copied from class: Tag

This writes the information to the given output

Specified by:

write in class Tag

Throws:

IOException

write

public void write(int tagID,
                  CGMOutputStream cgm)
           throws IOException

Writes the extra tag information to the outputstream in binary format. This implementation writes nothing, but concrete tags may override this method. This method is called just after the TagHeader is written.

Parameters:

tagID - id of the tag

cgm - Binary CGM output stream

Throws:

IOException

write

public abstract void write(int tagID,
                           CGMWriter cgm)
                    throws IOException

Writes the full tag to the Writer in Clear Text format.

Parameters:

tagID - id of the tag

cgm - Clear Text CGM Writer

Throws:

IOException

toString

public String toString()

Specified by:

toString in class Tag

Returns:

a description of the tagName and tagID