Package edu.macalester.graphics

Class Ellipse

java.lang.Object

edu.macalester.graphics.GraphicsObject

edu.macalester.graphics.Ellipse

All Implemented Interfaces:

Fillable, Strokable

public class Ellipse
extends GraphicsObject
implements Strokable, Fillable

An ellipse that can be drawn on the screen.

An ellipse’s position is the upper left corner of its bounding box.

Constructor Summary

Constructors

Constructor	Description
Ellipse(double x, double y, double width, double height)	Creates an ellipse whose upper left is at (x,y), and which has the specified width and height.

Method Summary

Modifier and Type	Method	Description
protected void	drawInLocalCoordinates(Graphics2D gc)	For internal use.
Rectangle2D	getBounds()	Returns the bounding box of this graphics object in its local coordinates.
protected Object	getEqualityAttributes()	For internal use only.
Paint	getFillColor()	Returns the color to fillColor that will be used to fill this shape if it is filled.
Paint	getStrokeColor()	Returns the color to strokeColor that will be used to stroke this shape if it is stroked.
double	getStrokeWidth()	Returns the thickness of the stroke in pixels.
boolean	isFilled()	Returns true if the interior of this shape will be filled with the fill color.
boolean	isStroked()	Returns true if the interior of this shape will be stroked with the stroke color.
void	setFillColor(Paint fillColor)	Sets the fill color to the given color.
void	setFilled(boolean filled)	Causes the shape to be filled with the fill color when it is drawn.
void	setSize(double width, double height)	Changes the width and height of the ellipse, preserving its upper left corner's position.
void	setSize(Point size)	Changes the width and height of the ellipse, preserving the position of its upper left corner.
void	setStrokeColor(Paint strokeColor)	Sets the stroke color to the given color.
void	setStroked(boolean stroked)	Causes the shape to be stroked with the stroke color when it is drawn.
void	setStrokeWidth(double width)	Sets how thick the stroke is.
boolean	testHitInLocalCoordinates(double x, double y)	Tests whether the given point is inside the boundary or interior of this object’s shape.
String	toString()

Methods inherited from class edu.macalester.graphics.GraphicsObject

addObserver, changed, equals, getAnchor, getBoundsInParent, getCanvas, getCenter, getElementAt, getElementAtLocalCoordinates, getEmbeddedComponent, getHeight, getPosition, getRotation, getScale, getScaleX, getScaleY, getSize, getSizeInParent, getWidth, getX, getY, hashCode, isInBounds, moveBy, moveBy, removeObserver, renderToBuffer, rotateBy, setAnchor, setAnchor, setCenter, setCenter, setPosition, setPosition, setRotation, setScale, setScale, setScale, setX, setY, testHit

Methods inherited from class java.lang.Object

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

Constructor Details

Ellipse

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

Creates an ellipse whose upper left is at (x,y), and which has the specified width and height. It has a 1 pixel black stroke outline by default.

Parameters:

x - position

y - position

width - of the bounding rectangle

height - of the bounding rectangle

Method Details

drawInLocalCoordinates

protected void drawInLocalCoordinates(Graphics2D gc)

Description copied from class: GraphicsObject

For internal use. Draws this graphics object on the screen in its local coordinates, without rotation or scaling.

Specified by:

drawInLocalCoordinates in class GraphicsObject

getFillColor

public Paint getFillColor()

Description copied from interface: Fillable

Returns the color to fillColor that will be used to fill this shape if it is filled. Note that there will still be no fill if isFilled() is false.

Specified by:

getFillColor in interface Fillable

setFillColor

public void setFillColor(Paint fillColor)

Description copied from interface: Fillable

Sets the fill color to the given color. Automatically calls setFilled(true).

Specified by:

setFillColor in interface Fillable

getStrokeColor

public Paint getStrokeColor()

Description copied from interface: Strokable

Returns the color to strokeColor that will be used to stroke this shape if it is stroked. Note that there will still be no stroke if isStroked() is false or the stroke width is zero.

Specified by:

getStrokeColor in interface Strokable

setStrokeColor

public void setStrokeColor(Paint strokeColor)

Description copied from interface: Strokable

Sets the stroke color to the given color. Automatically calls setStroked(true).

Specified by:

setStrokeColor in interface Strokable

isFilled

public boolean isFilled()

Description copied from interface: Fillable

Returns true if the interior of this shape will be filled with the fill color.

Specified by:

isFilled in interface Fillable

setFilled

public void setFilled(boolean filled)

Description copied from interface: Fillable

Causes the shape to be filled with the fill color when it is drawn.

Specified by:

setFilled in interface Fillable

isStroked

public boolean isStroked()

Description copied from interface: Strokable

Returns true if the interior of this shape will be stroked with the stroke color.

Specified by:

isStroked in interface Strokable

setStroked

public void setStroked(boolean stroked)

Description copied from interface: Strokable

Causes the shape to be stroked with the stroke color when it is drawn.

Specified by:

setStroked in interface Strokable

getStrokeWidth

public double getStrokeWidth()

Description copied from interface: Strokable

Returns the thickness of the stroke in pixels.

Specified by:

getStrokeWidth in interface Strokable

setStrokeWidth

public void setStrokeWidth(double width)

Description copied from interface: Strokable

Sets how thick the stroke is. Automatically calls setStroked(true).

Specified by:

setStrokeWidth in interface Strokable

setSize

public void setSize(double width,
 double height)

Changes the width and height of the ellipse, preserving its upper left corner's position.

setSize

public void setSize(Point size)

Changes the width and height of the ellipse, preserving the position of its upper left corner.

testHitInLocalCoordinates

public boolean testHitInLocalCoordinates(double x,
 double y)

Description copied from class: GraphicsObject

Tests whether the given point is inside the boundary or interior of this object’s shape. The point is in this object’s local coordinates.

Specified by:

testHitInLocalCoordinates in class GraphicsObject

getBounds

public Rectangle2D getBounds()

Description copied from class: GraphicsObject

Returns the bounding box of this graphics object in its local coordinates.

Specified by:

getBounds in class GraphicsObject

getEqualityAttributes

protected Object getEqualityAttributes()

Description copied from class: GraphicsObject

For internal use only. Used to compute equals() and hashCode(). Returns an object whose equals() and hashCode() methods encompass the subclass-specific values that should be used to compute equality for the whole GraphicsObject.

Specified by:

getEqualityAttributes in class GraphicsObject

toString

public String toString()

Overrides:

toString in class Object