net.sf.jcgm.core
Class Command

java.lang.Object
  net.sf.jcgm.core.Command

All Implemented Interfaces:

java.lang.Cloneable

Direct Known Subclasses:

AlternateCharacterSetIndex, ApplicationData, BackgroundColour, BeginApplicationStructureBody, BeginMetafile, BeginPicture, BeginPictureBody, BeginTileArray, BitonalTile, CapCommand, CellArray, CharacterCodingAnnouncer, CharacterExpansionFactor, CharacterHeight, CharacterOrientation, CharacterSetIndex, CharacterSetList, CharacterSpacing, CircleElement, CircularArc3Point, CircularArcCentre, ClipIndicator, ClipRectangle, ColourCommand, ColourIndexPrecision, ColourModel, ColourPrecision, ColourSelectionMode, ColourTable, ColourValueExtent, DashTypeCommand, DeviceViewportSpecificationMode, DisjointPolyline, EdgeVisibility, EdgeWidth, EdgeWidthSpecificationMode, EllipseElement, EndApplicationStructure, EndMetafile, EndPicture, EndTileArray, Escape, FontList, HatchIndex, IndexPrecision, IntegerPrecision, InteriorStyle, InteriorStyleSpecificationMode, JoinCommand, LineAndEdgeTypeDefinition, LineWidth, LineWidthSpecificationMode, MarkerSize, MarkerSizeSpecificationMode, MarkerType, MaximumColourIndex, MaximumVDCExtent, MessageCommand, MetafileDefaultsReplacement, MetafileDescription, MetafileElementList, MetafileVersion, NamePrecision, NoOp, PolyBezier, PolygonElement, PolygonSet, Polyline, PolyMarker, RealPrecision, RectangleElement, RestrictedTextType, ScalingMode, TextAlignment, TextCommand, TextFontIndex, TextPath, TextPrecision, Tile, VDCExtent, VDCIntegerPrecision, VDCRealPrecision, VDCType

public class Command
extends java.lang.Object
implements java.lang.Cloneable

Base class for all the CGM commands.

Notes from the Java Language Reference: The integral types are byte, short, int, and long, whose values are 8-bit, 16-bit, 32-bit and 64-bit signed two's-complement integers, respectively, and char, whose values are 16-bit unsigned integers representing Unicode characters.

Version:

$Id: Command.java 47 2011-12-14 08:52:12Z phica $

Author:

xphc (Philippe Cadé), BBNT Solutions

Field Summary

protected int[]	args All the command parameters
protected int	currentArg The current command parameter we're reading

Constructor Summary

Command(int ec, int eid, int l, java.io.DataInput in)
The base class for all commands.

Method Summary

protected void	alignOnWord() Align on a word boundary
java.lang.Object	clone()
int	getElementClass() Returns the element class for this command
int	getElementCode() Returns the element ID for this command
protected void	info(java.lang.String message)
protected byte	makeByte()
protected char	makeChar()
protected int	makeColorIndex()
protected int	makeColorIndex(int precision)
protected java.awt.Color	makeDirectColor()
protected int	makeEnum()
protected double	makeFixedPoint()
protected java.lang.String	makeFixedString()
protected double	makeFloat32(int i)
protected double	makeFloatingPoint()
protected double	makeFloatingPoint32()
protected int	makeIndex()
protected int	makeInt()
protected int	makeName()
protected java.awt.geom.Point2D.Double	makePoint()
protected double	makeReal()
protected StructuredDataRecord	makeSDR()
protected int	makeSignedInt16()
protected int	makeSignedInt24()
protected int	makeSignedInt32()
protected int	makeSignedInt8()
protected double	makeSizeSpecification(SpecificationMode specificationMode)
protected java.lang.String	makeString()
protected int	makeUInt(int precision)
protected double	makeVc()
protected double	makeVdc()
void	paint(CGMDisplay d)
protected java.lang.String	printShape(java.awt.Shape s) Returns a descriptive string of the given shape
static Command	read(java.io.DataInput in) Reads one command from the given input stream.
protected static Command	readCommand(java.io.DataInput in, int ec, int eid, int l)
protected int	sizeOfDirectColor()
protected int	sizeOfEnum()
protected int	sizeOfInt()
protected int	sizeOfPoint()
protected int	sizeOfVdc()
java.lang.String	toString()
protected void	unimplemented(java.lang.String message)
protected void	unsupported(java.lang.String message)

Methods inherited from class java.lang.Object

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

Field Detail

args

protected int[] args

All the command parameters

currentArg

protected int currentArg

The current command parameter we're reading

Constructor Detail

Command

public Command(int ec,
               int eid,
               int l,
               java.io.DataInput in)
        throws java.io.IOException

The base class for all commands.

Parameters:

ec - The element class

eid - The element ID

l - The number of arguments for the command

in - The input stream used to read the command

Throws:

java.io.IOException

Method Detail

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

makeFixedString

protected final java.lang.String makeFixedString()

makeString

protected final java.lang.String makeString()

makeByte

protected final byte makeByte()

makeChar

protected final char makeChar()

makeSignedInt8

protected final int makeSignedInt8()

makeSignedInt16

protected final int makeSignedInt16()

makeSignedInt24

protected final int makeSignedInt24()

makeSignedInt32

protected final int makeSignedInt32()

makeInt

protected final int makeInt()

sizeOfInt

protected final int sizeOfInt()

makeIndex

protected final int makeIndex()

makeName

protected final int makeName()

makeUInt

protected final int makeUInt(int precision)

makeVdc

protected final double makeVdc()

sizeOfVdc

protected final int sizeOfVdc()

makeVc

protected final double makeVc()

makeReal

protected final double makeReal()

makeFixedPoint

protected final double makeFixedPoint()

makeFloatingPoint

protected final double makeFloatingPoint()

makeFloatingPoint32

protected final double makeFloatingPoint32()

makeEnum

protected final int makeEnum()

sizeOfEnum

protected final int sizeOfEnum()

makePoint

protected final java.awt.geom.Point2D.Double makePoint()

sizeOfPoint

protected final int sizeOfPoint()

makeColorIndex

protected final int makeColorIndex()

makeColorIndex

protected final int makeColorIndex(int precision)

makeDirectColor

protected final java.awt.Color makeDirectColor()

sizeOfDirectColor

protected final int sizeOfDirectColor()

makeFloat32

protected final double makeFloat32(int i)

makeSizeSpecification

protected final double makeSizeSpecification(SpecificationMode specificationMode)

makeSDR

protected final StructuredDataRecord makeSDR()

alignOnWord

protected final void alignOnWord()

Align on a word boundary

paint

public void paint(CGMDisplay d)

read

public static Command read(java.io.DataInput in)
                    throws java.io.IOException

Reads one command from the given input stream.

Parameters:

in - Where to read the command from

Returns:

The command or null if the end of stream was found

Throws:

java.io.IOException - On I/O error

readCommand

protected static Command readCommand(java.io.DataInput in,
                                     int ec,
                                     int eid,
                                     int l)
                              throws java.io.IOException

Throws:

java.io.IOException

info

protected final void info(java.lang.String message)

unsupported

protected final void unsupported(java.lang.String message)

unimplemented

protected final void unimplemented(java.lang.String message)

clone

public java.lang.Object clone()

Overrides:

clone in class java.lang.Object

getElementClass

public int getElementClass()

Returns the element class for this command

Returns:

An integer representing the class

getElementCode

public int getElementCode()

Returns the element ID for this command

Returns:

An integer representing the identifier

printShape

protected java.lang.String printShape(java.awt.Shape s)

Returns a descriptive string of the given shape

Parameters:

s - The shape to describe

Returns:

A string containing the coordinates to make the shape