Package org.opensourcephysics.display

Class AbstractInteractive

java.lang.Object

org.opensourcephysics.display.AbstractInteractive

All Implemented Interfaces:

Drawable, Interactive, Measurable

Direct Known Subclasses:

InteractiveShape

public abstract class AbstractInteractive
extends java.lang.Object
implements Interactive

AbstractInteractive implements common Interactive methods.

Field Summary

Fields

Modifier and Type	Field	Description
java.awt.Color	color
protected double	x
protected double	y

Constructor Summary

Constructors

Constructor	Description
AbstractInteractive()

Method Summary

Modifier and Type	Method	Description
abstract void	draw(DrawingPanel panel, java.awt.Graphics g)	Draws the object.
Interactive	findInteractive(DrawingPanel panel, int xpix, int ypix)	Finds the interactive object that will respond to mouse actions.
double	getX()	Gets the x coordinate.
double	getXMax()	Gets the maximum x needed to draw this object.
double	getXMin()	Gets the minimum x needed to draw this object.
double	getY()	Gets the y coordinate.
double	getYMax()	Gets the maximum y needed to draw this object.
double	getYMin()	Gets the minimum y needed to draw this object.
boolean	isEnabled()
abstract boolean	isInside(DrawingPanel panel, int xpix, int ypix)	Checks to see if this object is enabled and if the pixel coordinates are inside the drawable.
boolean	isMeasured()	Determines if information is available to set min/max values.
void	setEnabled(boolean _enabled)	Sets the enabled flag.
void	setX(double _x)	Sets the x coordinate.
void	setXY(double _x, double _y)	Sets the x and y coordinates.
void	setY(double _y)	Sets the y coordinate.

Methods inherited from class java.lang.Object

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

Field Detail

color

public java.awt.Color color

x

protected double x

y

protected double y

Constructor Detail

AbstractInteractive

public AbstractInteractive()

Method Detail

draw

public abstract void draw(DrawingPanel panel,
                          java.awt.Graphics g)

Draws the object.

Specified by:

draw in interface Drawable

Parameters:

panel - the drawing panel

g - the graphics context

isInside

public abstract boolean isInside(DrawingPanel panel,
                                 int xpix,
                                 int ypix)

Checks to see if this object is enabled and if the pixel coordinates are inside the drawable.

Parameters:

panel -

xpix -

ypix -

Returns:

true if the pixel coordinates are inside; false otherwise

setEnabled

public void setEnabled(boolean _enabled)

Sets the enabled flag.

Specified by:

setEnabled in interface Interactive

Parameters:

_enabled -

isEnabled

public boolean isEnabled()

Specified by:

isEnabled in interface Interactive

setXY

public void setXY(double _x,
                  double _y)

Sets the x and y coordinates.

Specified by:

setXY in interface Interactive

Parameters:

_x -

_y -

findInteractive

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

Finds the interactive object that will respond to mouse actions.

Specified by:

findInteractive in interface Interactive

Parameters:

panel - DrawingPanel

xpix - int

ypix - int

Returns:

Interactive

isMeasured

public boolean isMeasured()

Description copied from interface: Measurable

Determines if information is available to set min/max values. Objects that store data should return false if data is null.

Specified by:

isMeasured in interface Measurable

Returns:

true if min/max values are valid

getXMin

public double getXMin()

Description copied from interface: Measurable

Gets the minimum x needed to draw this object.

Specified by:

getXMin in interface Measurable

Returns:

minimum

getXMax

public double getXMax()

Description copied from interface: Measurable

Gets the maximum x needed to draw this object.

Specified by:

getXMax in interface Measurable

Returns:

maximum

getYMin

public double getYMin()

Description copied from interface: Measurable

Gets the minimum y needed to draw this object.

Specified by:

getYMin in interface Measurable

Returns:

minimum

getYMax

public double getYMax()

Description copied from interface: Measurable

Gets the maximum y needed to draw this object.

Specified by:

getYMax in interface Measurable

Returns:

minimum

getX

public double getX()

Gets the x coordinate.

Specified by:

getX in interface Interactive

Returns:

double x

setX

public void setX(double _x)

Sets the x coordinate.

Specified by:

setX in interface Interactive

Parameters:

_x -

getY

public double getY()

Gets the y coordinate.

Specified by:

getY in interface Interactive

Returns:

double y

setY

public void setY(double _y)

Sets the y coordinate.

Specified by:

setY in interface Interactive

Parameters:

_y -