diva.graph.toolbox

Class StateBubble

java.lang.Object

diva.canvas.AbstractFigure

diva.graph.toolbox.StateBubble

All Implemented Interfaces:

CanvasComponent, Figure, VisibleComponent, UserObjectContainer

public class StateBubble
extends AbstractFigure

A Figure that is customized for representing state bubbles.

Version:

$Id$

Author:

John Reekie, Xiaojun Liu

Field Summary

Fields

Modifier and Type	Field and Description
static int	FINAL_STATE The style of a finalstate
static int	INITIAL_STATE The style of an initial state
static int	NORMAL_STATE The style of a regular state

Constructor Summary

Constructors

Constructor and Description
StateBubble(double x, double y, double width, double height) Create a new figure at the given coordinates.
StateBubble(double x, double y, double width, double height, java.awt.Paint fill) Create a new figure at the given coordinates and with the given fill.

Method Summary

Modifier and Type	Method and Description
java.awt.geom.Rectangle2D	getBounds() Get the bounding box of this figure.
java.awt.Shape	getShape() Get the shape of this figure.
int	getStateType() Get the state type.
java.awt.Stroke	getStroke() Get the stroke of this figure.
java.awt.Paint	getStrokePaint() Get the stroke paint pattern of this figure.
boolean	hit(java.awt.geom.Rectangle2D r) Test if this figure intersects the given rectangle.
void	paint(java.awt.Graphics2D g) Paint the figure.
void	setFillPaint(java.awt.Paint p) Set the fill paint pattern of this figure.
void	setStateType(int type) Set the type of the state
void	setStroke(java.awt.BasicStroke s) Set the stroke of this figure.
void	setStrokePaint(java.awt.Paint p) Set the stroke paint pattern of this figure.
void	transform(java.awt.geom.AffineTransform at) Transform the figure with the supplied transform.
void	translate(double x, double y) Translate the figure with by the given distance.

Methods inherited from class diva.canvas.AbstractFigure

contains, getInteractor, getLayer, getOrigin, getParent, getToolTipText, getTransformContext, getUserObject, intersects, isVisible, paint, repaint, repaint, setInteractor, setParent, setToolTipText, setUserObject, setVisible

Methods inherited from class java.lang.Object

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

Field Detail

NORMAL_STATE

public static final int NORMAL_STATE

The style of a regular state

See Also:

Constant Field Values

INITIAL_STATE

public static final int INITIAL_STATE

The style of an initial state

See Also:

Constant Field Values

FINAL_STATE

public static final int FINAL_STATE

The style of a finalstate

See Also:

Constant Field Values

Constructor Detail

StateBubble

public StateBubble(double x,
                   double y,
                   double width,
                   double height)

Create a new figure at the given coordinates. The figure, by default, has a unit-width continuous black outline and no fill.

StateBubble

public StateBubble(double x,
                   double y,
                   double width,
                   double height,
                   java.awt.Paint fill)

Create a new figure at the given coordinates and with the given fill.

Method Detail

getBounds

public java.awt.geom.Rectangle2D getBounds()

Get the bounding box of this figure. This method overrides the inherited method to take account of the thickness of the stroke, if there is one.

Specified by:

getBounds in interface Figure

Overrides:

getBounds in class AbstractFigure

Returns:

the bounding box of this figure.

getShape

public java.awt.Shape getShape()

Get the shape of this figure.

Specified by:

getShape in interface Figure

Specified by:

getShape in class AbstractFigure

Returns:

the outline shape of this figure

getStateType

public int getStateType()

Get the state type. This will be one of NORMAL_STATE, INITIAL_STATE, or FINAL_STATE.

getStroke

public java.awt.Stroke getStroke()

Get the stroke of this figure.

getStrokePaint

public java.awt.Paint getStrokePaint()

Get the stroke paint pattern of this figure.

hit

public boolean hit(java.awt.geom.Rectangle2D r)

Test if this figure intersects the given rectangle. If there is a fill but no outline, then there is a hit if the shape is intersected. If there is an outline but no fill, then the area covered by the outline stroke is tested. If there is both a fill and a stroke, the region bounded by the outside edge of the stroke is tested. If there is neither a fill nor a stroke, then return false. If the figure is not visible, always return false.

Specified by:

hit in interface Figure

Overrides:

hit in class AbstractFigure

Parameters:

r - The rectangle to be checked.

Returns:

true if the figure is hit by the given rectangle.

paint

public void paint(java.awt.Graphics2D g)

Paint the figure. The figure is redrawn with the current shape, fill, and outline.

Specified by:

paint in interface VisibleComponent

Specified by:

paint in class AbstractFigure

Parameters:

g - The 2D graphics object that this object it to be painted upon.

setFillPaint

public void setFillPaint(java.awt.Paint p)

Set the fill paint pattern of this figure. The figure will be filled with this paint pattern. If no pattern is given, do not fill it.

setStroke

public void setStroke(java.awt.BasicStroke s)

Set the stroke of this figure.

setStateType

public void setStateType(int type)

Set the type of the state

setStrokePaint

public void setStrokePaint(java.awt.Paint p)

Set the stroke paint pattern of this figure.

transform

public void transform(java.awt.geom.AffineTransform at)

Transform the figure with the supplied transform. This can be used to perform arbitrary translation, scaling, shearing, and rotation operations. As much as possible, this method attempts to preserve the type of the shape: if the shape of this figure is an of RectangularShape or Polyline, then the shape may be modified directly. Otherwise, a general transformation is used that loses the type of the shape, converting it into a GeneralPath.

Specified by:

transform in interface Figure

Specified by:

transform in class AbstractFigure

Parameters:

at - The transform to be used.

translate

public void translate(double x,
                      double y)

Translate the figure with by the given distance. As much as possible, this method attempts to preserve the type of the shape: if the shape of this figure is an of RectangularShape or Polyline, then the shape may be modified directly. Otherwise, a general transformation is used that loses the type of the shape, converting it into a GeneralPath.

Specified by:

translate in interface Figure

Overrides:

translate in class AbstractFigure

Parameters:

x - The x value to be moved.

y - The y value to be moved.