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com.port80.graph.impl
Class ArrowFactory  

java.lang.Object
  com.port80.graph.impl.ArrowFactory

All Implemented Interfaces:

com.port80.util.attr.IAttrFactory

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public class ArrowFactory

extends java.lang.Object

implements com.port80.util.attr.IAttrFactory

Arrow factory. Arrow factory provides a named collection of of stock Arrow object templates. Each template is parameterized by the leadinWidth, which determines the leadin shape. Default templates have leadinWidth=1.0f. The template produced have default colors from the Arrow class. Typically client have to set the appropriate attributes for the Arrow template and render it into an BufferedImage and then applied AffineTransform and composition to merge the rendered image to client area. //FIXME: . Scale square down to 1/sqrt(2) with leadin.

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Field Summary
static int	ARROW_DOT
static int	ARROW_INVDOT
static int	ARROW_INVERT
static int	ARROW_INVODOT
static int	ARROW_NONE
static int	ARROW_NORMAL
static int	ARROW_ODOT
private static float	H
private static ArrowFactory	instance
private static float	LW
private static java.lang.String	NAME
private static float	SQRT2
private static java.util.Map	table

 

Constructor Summary
private	ArrowFactory()

 

Method Summary
static Arrow	create(java.lang.String stringvalue)           String format: stockname | typename,height | typename,height,linewidth | typename,height,width,linewidth | typename,height,width,linewidth,leadinwidth
java.lang.Object	createObject(java.lang.String str)           Convert String representation of an attribute value to the appropriate object for storing in AttrTable.
static ArrowFactory	getInstance()
boolean	isValid(java.lang.Object a)           Check that given object is valid value for this factory.
java.lang.Object	promptUser(java.lang.String prompt)           Prompt user and present a user interface to obtain an attribute value from user.
private static Arrow	stockDiamond(java.lang.String name, float w, float h, float leadinwidth, float linewidth)           A diamond shape.
private static Arrow	stockDot(java.lang.String name, float w, float h, float leadinwidth, float linewidth)           A circle.
private static Arrow	stockDoubleLine(java.lang.String name, float w, float h, float leadinwidth, float linewidth)           Double arrow by line only.
private static Arrow	stockLine(java.lang.String name, float w, float h, float leadinwidth, float linewidth)           Arrow by line only.
private static Arrow	stockNormal(java.lang.String name, float w, float h, float leadinwidth, float linewidth)           Line arrow with same line width for leadin and arrow head.
private static Arrow	stockSpear(java.lang.String name, float w, float h, float leadinwidth, float linewidth)           An spear shape stock.
private static Arrow	stockSquare(java.lang.String name, float w, float h, float leadinwidth, float linewidth)           A unit square.
private static Arrow	stockTriangle(java.lang.String name, float w, float h, float leadinwidth, float linewidth)           A triangle inside a unit square.
java.lang.String	toString()           The String representation of attribute type itself.
java.lang.String	toString(java.lang.Object attr)           The String representation of an attribute value.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

NAME

private static final java.lang.String NAME

See Also:

Constant Field Values

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instance

private static ArrowFactory instance

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ARROW_NONE

public static final int ARROW_NONE

See Also:

Constant Field Values

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ARROW_NORMAL

public static final int ARROW_NORMAL

See Also:

Constant Field Values

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ARROW_INVERT

public static final int ARROW_INVERT

See Also:

Constant Field Values

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ARROW_DOT

public static final int ARROW_DOT

See Also:

Constant Field Values

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ARROW_ODOT

public static final int ARROW_ODOT

See Also:

Constant Field Values

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ARROW_INVDOT

public static final int ARROW_INVDOT

See Also:

Constant Field Values

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ARROW_INVODOT

public static final int ARROW_INVODOT

See Also:

Constant Field Values

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table

private static java.util.Map table

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SQRT2

private static final float SQRT2

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H

private static final float H

See Also:

Constant Field Values

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LW

private static final float LW

See Also:

Constant Field Values

Constructor Detail

ArrowFactory

private ArrowFactory()

Method Detail

getInstance

public static ArrowFactory getInstance()

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create

public static Arrow create(java.lang.String stringvalue)

String format: stockname | typename,height | typename,height,linewidth | typename,height,width,linewidth | typename,height,width,linewidth,leadinwidth

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createObject

public java.lang.Object createObject(java.lang.String str)

Convert String representation of an attribute value to the appropriate object for storing in AttrTable.

Specified by:

createObject in interface com.port80.util.attr.IAttrFactory

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isValid

public boolean isValid(java.lang.Object a)

Description copied from interface: com.port80.util.attr.IAttrFactory

Check that given object is valid value for this factory.

Specified by:

isValid in interface com.port80.util.attr.IAttrFactory

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toString

public java.lang.String toString(java.lang.Object attr)

The String representation of an attribute value.

Specified by:

toString in interface com.port80.util.attr.IAttrFactory

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toString

public java.lang.String toString()

The String representation of attribute type itself.

Specified by:

toString in interface com.port80.util.attr.IAttrFactory

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promptUser

public java.lang.Object promptUser(java.lang.String prompt)

Prompt user and present a user interface to obtain an attribute value from user.

Specified by:

promptUser in interface com.port80.util.attr.IAttrFactory

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stockNormal

private static Arrow stockNormal(java.lang.String name,
                                 float w,
                                 float h,
                                 float leadinwidth,
                                 float linewidth)

Line arrow with same line width for leadin and arrow head.

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stockTriangle

private static Arrow stockTriangle(java.lang.String name,
                                   float w,
                                   float h,
                                   float leadinwidth,
                                   float linewidth)

A triangle inside a unit square.

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stockSquare

private static Arrow stockSquare(java.lang.String name,
                                 float w,
                                 float h,
                                 float leadinwidth,
                                 float linewidth)

A unit square.

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stockDiamond

private static Arrow stockDiamond(java.lang.String name,
                                  float w,
                                  float h,
                                  float leadinwidth,
                                  float linewidth)

A diamond shape.

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stockDot

private static Arrow stockDot(java.lang.String name,
                              float w,
                              float h,
                              float leadinwidth,
                              float linewidth)

A circle.

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stockSpear

private static Arrow stockSpear(java.lang.String name,
                                float w,
                                float h,
                                float leadinwidth,
                                float linewidth)

An spear shape stock.

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stockLine

private static Arrow stockLine(java.lang.String name,
                               float w,
                               float h,
                               float leadinwidth,
                               float linewidth)

Arrow by line only.

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stockDoubleLine

private static Arrow stockDoubleLine(java.lang.String name,
                                     float w,
                                     float h,
                                     float leadinwidth,
                                     float linewidth)

Double arrow by line only.

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