uchicago.src.sim.gui
Class Painter

java.lang.Object
  |
  +--uchicago.src.sim.gui.Painter

Direct Known Subclasses:

LocalPainter

public abstract class Painter

extends Object

Abstract class for local and remote painting objects that do the actual work of getting Displayables to paint themselves. Used by DisplaySurface.

See Also:

LocalPainter

Field Summary

protected Color	bgColor
protected BufferedImage	buffImage
protected ArrayList	displayables
protected Graphics2D	g2
protected int	height
protected float	origHeight
protected float	origWidth
protected SimGraphics	simGraphics
protected DisplaySurface	surface
protected Toolkit	toolkit
protected int	width

Constructor Summary

Painter()
Creates a Painter.

Painter(DisplaySurface s, int w, int h)
Creates a Painter using the specified displaySurface, and with the specified width and height.

Method Summary

void	addDisplayable(Displayable d) Adds a Displayable to the list of displayables to be displayed.
protected void	createBufferedImage() Creates a BufferedImage for use by sub class painters.
protected void	createGraphics2D() Creates and sets the drawing context.
void	dispose() Disposes of the graphics object
abstract void	drawRect(Graphics g, int left, int top, int width, int height)
abstract void	eraseRect(Graphics g)
void	finalize()
Image	getCurrentImage() Gets the current BufferedImage
Graphics2D	getGraphics() Gets the graphics context on which to draw.
void	init(DisplaySurface s, int w, int h) Associates this Painter with the specified DisplaySurface and initializes the width and height.
abstract void	paint(Graphics g) Paints the displayables.
protected void	paintBackground() Paints the background to the currently specified color.
void	removeDisplayable(Displayable d) Removes a Displayable to the list of displayables to be displayed.
void	reSize(int newWidth, int newHeight) Resizes the buffered image on which all drawing is done to the specified newWidth and height
void	setBackgroundColor(Color c) Sets the background color.
abstract void	takeSnapshot(DataOutputStream os) Takes a snapshot of the current screen image.

Methods inherited from class java.lang.Object

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

Field Detail

surface

protected DisplaySurface surface

buffImage

protected BufferedImage buffImage

g2

protected Graphics2D g2

width

protected int width

height

protected int height

origWidth

protected float origWidth

origHeight

protected float origHeight

displayables

protected ArrayList displayables

simGraphics

protected SimGraphics simGraphics

toolkit

protected Toolkit toolkit

bgColor

protected Color bgColor

Constructor Detail

Painter

public Painter()

Creates a Painter. Before this Painter can be used its init method must be called. This will done automatically by the DisplaySurface if this Painter is an argument to a DisplaySurface's constructor.

Painter

public Painter(DisplaySurface s,
               int w,
               int h)

Creates a Painter using the specified displaySurface, and with the specified width and height.

Parameters:

s - the displaySurface associated with this Painter

w - the width of the painter

h - the height of the painter

Method Detail

init

public void init(DisplaySurface s,
                 int w,
                 int h)

Associates this Painter with the specified DisplaySurface and initializes the width and height. This can be used in conjunction with the no-arg constructor to complete the construction of a Painter in situations when creating a DisplaySurface that takes a Painter as part of its construction. In these cases, the DisplaySurface will call this init method.

Parameters:

s - the displaySurface associated with this Painter

w - the width of the painter

h - the height of the painter

createBufferedImage

protected void createBufferedImage()

Creates a BufferedImage for use by sub class painters.

reSize

public void reSize(int newWidth,
                   int newHeight)

Resizes the buffered image on which all drawing is done to the specified newWidth and height

Parameters:

newWidth - the newWidth of the new buffered image

newHeight - the height of the new buffered image

createGraphics2D

protected void createGraphics2D()

Creates and sets the drawing context.

addDisplayable

public void addDisplayable(Displayable d)

Adds a Displayable to the list of displayables to be displayed.

Parameters:

d - the displayable to add

removeDisplayable

public void removeDisplayable(Displayable d)

Removes a Displayable to the list of displayables to be displayed.

Parameters:

d - the displayable to remove

getGraphics

public Graphics2D getGraphics()

Gets the graphics context on which to draw.

paint

public abstract void paint(Graphics g)

Paints the displayables.

drawRect

public abstract void drawRect(Graphics g,
                              int left,
                              int top,
                              int width,
                              int height)

eraseRect

public abstract void eraseRect(Graphics g)

finalize

public void finalize()

Overrides:

finalize in class Object

dispose

public void dispose()

Disposes of the graphics object

setBackgroundColor

public void setBackgroundColor(Color c)

Sets the background color.

paintBackground

protected void paintBackground()

Paints the background to the currently specified color.

takeSnapshot

public abstract void takeSnapshot(DataOutputStream os)

Takes a snapshot of the current screen image.

getCurrentImage

public Image getCurrentImage()

Gets the current BufferedImage