Package org.opensourcephysics.media.core

Class TShape

java.lang.Object

java.awt.geom.Point2D

java.awt.geom.Point2D.Double

org.opensourcephysics.media.core.TPoint

org.opensourcephysics.media.core.TShape

All Implemented Interfaces:

Serializable, Cloneable, Drawable, Interactive, Measurable, Trackable

Direct Known Subclasses:

TCircle, TCoordAxes, TLine, TVector

public class TShape
extends TPoint

This is the base class for all TPoint objects that draw a Shape.

Version:

1.0

Author:

Douglas Brown

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class java.awt.geom.Point2D

Point2D.Double, Point2D.Float

Field Summary

Fields

Modifier and Type	Field	Description
protected Color	color
protected Shape	fillShape
protected static Rectangle	hitRect
protected BasicStroke	stroke
protected boolean	visible

Fields inherited from class org.opensourcephysics.media.core.TPoint

attachedTo, coordsEditTrigger, coordsVisibleInMouseBox, enabled, isAdjusting, prevX, prevY, screenPt, stepEditTrigger, support, toScreen, trackEditTrigger, worldPt, xyStringBuilder

Fields inherited from class java.awt.geom.Point2D.Double

x, y

Fields inherited from interface org.opensourcephysics.media.core.Trackable

PROPERTY_ADJUSTING

Constructor Summary

Constructors

Constructor	Description
TShape()	Constructs a TPoint object with coordinates (0, 0).
TShape(double x, double y)	Constructs a TPoint object with specified image coordinates.
TShape(Point2D.Double point)	Constructs a TPoint object with image coordinates specified by a Point2D (commonly another TPoint).

Method Summary

Modifier and Type	Method	Description
void	draw(DrawingPanel panel, Graphics _g)	Overrides TPoint draw method.
Interactive	findInteractive(DrawingPanel panel, int xpix, int ypix)	Overrides TPoint findInteractive method.
Rectangle	getBounds(VideoPanel vidPanel)	Gets the screen bounds of the shape.
Color	getColor()	Gets the color of the shape.
protected Shape	getShape(VideoPanel vidPanel)	Gets the shape to be filled in the draw method.
BasicStroke	getStroke()	Gets the stroke.
boolean	isVisible()	Gets the current visible state.
void	setColor(Color color)	Sets the color of the shape.
protected void	setHitRectCenter(int xpix, int ypix)	Centers the hit testing rectangle on the specified screen point.
void	setStroke(BasicStroke stroke)	Sets the stroke.
void	setVisible(boolean visible)	Sets the visible state.
String	toString()	Returns a String describing this TPoint.

Methods inherited from class org.opensourcephysics.media.core.TPoint

addPropertyChangeListener, addPropertyChangeListener, angle, angle, attachTo, center, cos, cos, detach, equals, getFrameNumber, getScreenPosition, getWorldPosition, getXMax, getXMin, getYMax, getYMin, isAdjusting, isAttached, isCoordsEditTrigger, isEnabled, isMeasured, isStepEditTrigger, isTrackEditTrigger, removePropertyChangeListener, removePropertyChangeListener, setAdjusting, setCoordsEditTrigger, setEnabled, setLocation, setPositionOnLine, setScreenPosition, setScreenPosition, setStepEditTrigger, setTrackEditTrigger, setWorldPosition, setX, setXY, setY, showCoordinates, sin, sin, translate

Methods inherited from class java.awt.geom.Point2D.Double

getX, getY

Methods inherited from class java.awt.geom.Point2D

clone, distance, distance, distance, distanceSq, distanceSq, distanceSq, hashCode, setLocation

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.opensourcephysics.display.Interactive

getX, getY, isInteractive

Field Details

hitRect

protected static Rectangle hitRect

color

protected Color color

visible

protected boolean visible

fillShape

protected Shape fillShape

stroke

protected BasicStroke stroke

Constructor Details

TShape

public TShape()

Constructs a TPoint object with coordinates (0, 0).

TShape

public TShape(double x,
 double y)

Constructs a TPoint object with specified image coordinates.

Parameters:

x - the x coordinate

y - the y coordinate

TShape

public TShape(Point2D.Double point)

Constructs a TPoint object with image coordinates specified by a Point2D (commonly another TPoint).

Parameters:

point - the Point2D

Method Details

setColor

public void setColor(Color color)

Sets the color of the shape.

Parameters:

color - the desired color

getColor

public Color getColor()

Gets the color of the shape.

Returns:

the color

setStroke

public void setStroke(BasicStroke stroke)

Sets the stroke.

Parameters:

stroke - the desired stroke

getStroke

public BasicStroke getStroke()

Gets the stroke.

Returns:

the color

getBounds

public Rectangle getBounds(VideoPanel vidPanel)

Gets the screen bounds of the shape.

Overrides:

getBounds in class TPoint

Parameters:

vidPanel - the video panel

Returns:

the bounding rectangle

setVisible

public void setVisible(boolean visible)

Sets the visible state.

Parameters:

visible - true to make this visible.

isVisible

public boolean isVisible()

Gets the current visible state.

Returns:

true if this is visible.

draw

public void draw(DrawingPanel panel,
 Graphics _g)

Overrides TPoint draw method.

Specified by:

draw in interface Drawable

Overrides:

draw in class TPoint

Parameters:

panel - the drawing panel requesting the drawing

_g - the graphics context on which to draw

findInteractive

public Interactive findInteractive(DrawingPanel panel,
 int xpix,
 int ypix)

Overrides TPoint findInteractive method.

Specified by:

findInteractive in interface Interactive

Overrides:

findInteractive in class TPoint

Parameters:

panel - the drawing panel

xpix - the x pixel position on the panel

ypix - the y pixel position on the panel

Returns:

the interactive drawable object

toString

public String toString()

Returns a String describing this TPoint.

Overrides:

toString in class TPoint

Returns:

a descriptive string

getShape

protected Shape getShape(VideoPanel vidPanel)

Gets the shape to be filled in the draw method.

Parameters:

vidPanel - the video panel

Returns:

the fill shape

setHitRectCenter

protected void setHitRectCenter(int xpix,
 int ypix)

Centers the hit testing rectangle on the specified screen point.

Parameters:

xpix - the x pixel position

ypix - the y pixel position