uk.co.javagear
Class Screen

java.lang.Object
  java.awt.Component
      uk.co.javagear.Screen

All Implemented Interfaces:

java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable

public final class Screen
extends java.awt.Component

Component to draw the emulated display.

Version:

18th January 2003

Author:

Copyright (C) 2002-2003 Chris White

See Also:

"JavaGear Final Project Report", Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class java.awt.Component

java.awt.Component.AccessibleAWTComponent, java.awt.Component.BaselineResizeBehavior, java.awt.Component.BltBufferStrategy, java.awt.Component.FlipBufferStrategy

Field Summary

private java.awt.Font	f Font to use.
private FastImage	fastImage Pointer to Fast Image Consumer.
private boolean	forceUpdate
private java.lang.String	fps FPS String.
private java.awt.Graphics	gfx Pointer to Graphics Context.
private boolean[]	pixelUpdate Pixel has been updated?
private Setup	setup Pointer to General Parameters.
private boolean	showFps Display FPS Counter.
private Vdp	vdp Pointer to VDP.

Fields inherited from class java.awt.Component

BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Fields inherited from interface java.awt.image.ImageObserver

ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH

Constructor Summary

Screen(Setup set, Vdp v)
ScreenPanel Constructor.

Method Summary

void	disposeGraphics() Dispose of graphics context.
void	forceUpdate() Force screen to update regardless of whether pixel changes have been made.
private java.lang.String	getFPS() Get frames per second.
java.awt.Dimension	getMinimumSize() Gets the mininimum size of this component.
java.awt.Dimension	getPreferredSize() Gets the preferred size of this component.
void	paint(java.awt.Graphics g) Repaint Screen When Window Obscured.
void	paintAll(java.awt.Graphics g) Overridden for optimisation.
void	paintFPS(boolean b) Paint FPS counter.
void	refresh() Refresh the screen.
void	repaint() Overridden for optimization.
void	repaint(int x, int y, int width, int height) Overridden for optimization.
void	repaint(long tm, int x, int y, int width, int height) Overridden for optimization.
void	update(java.awt.Graphics g) Overridden for optimization.

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, addNotify, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, createVolatileImage, createVolatileImage, deliverEvent, disable, disableEvents, dispatchEvent, doLayout, enable, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getAccessibleContext, getAlignmentX, getAlignmentY, getBackground, getBaseline, getBaselineResizeBehavior, getBounds, getBounds, getColorModel, getComponentAt, getComponentAt, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeys, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphics, getGraphicsConfiguration, getHeight, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getListeners, getLocale, getLocation, getLocation, getLocationOnScreen, getMaximumSize, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, invalidate, isBackgroundSet, isCursorSet, isDisplayable, isDoubleBuffered, isEnabled, isFocusable, isFocusCycleRoot, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isOpaque, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, layout, list, list, list, list, list, locate, location, lostFocus, minimumSize, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paramString, postEvent, preferredSize, prepareImage, prepareImage, print, printAll, processComponentEvent, processEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removeNotify, removePropertyChangeListener, removePropertyChangeListener, repaint, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, reshape, resize, resize, setBackground, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFocusable, setFocusTraversalKeys, setFocusTraversalKeysEnabled, setFont, setForeground, setIgnoreRepaint, setLocale, setLocation, setLocation, setMaximumSize, setMinimumSize, setName, setPreferredSize, setSize, setSize, setVisible, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle, validate

Methods inherited from class java.lang.Object

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

Field Detail

gfx

private java.awt.Graphics gfx

Pointer to Graphics Context.

showFps

private boolean showFps

Display FPS Counter.

fps

private java.lang.String fps

FPS String.

f

private java.awt.Font f

Font to use.

fastImage

private FastImage fastImage

Pointer to Fast Image Consumer.

pixelUpdate

private boolean[] pixelUpdate

Pixel has been updated?

vdp

private Vdp vdp

Pointer to VDP.

setup

private Setup setup

Pointer to General Parameters.

forceUpdate

private boolean forceUpdate

Constructor Detail

Screen

public Screen(Setup set,
              Vdp v)

ScreenPanel Constructor.

Parameters:

set - Pointer to General Parameters

v - Pointer to VDP

Method Detail

refresh

public void refresh()

Refresh the screen.

paintFPS

public void paintFPS(boolean b)

Paint FPS counter.

Parameters:

b - true to paint, false to not paint.

getFPS

private java.lang.String getFPS()

Get frames per second.

Returns:

average frames rendered per second, with corresponding percentage.

paint

public void paint(java.awt.Graphics g)

Repaint Screen When Window Obscured.

Overrides:

paint in class java.awt.Component

Parameters:

g - The graphics context to use for painting.

forceUpdate

public void forceUpdate()

Force screen to update regardless of whether pixel changes have been made.

paintAll

public void paintAll(java.awt.Graphics g)

Overridden for optimisation. Does nothing.

Overrides:

paintAll in class java.awt.Component

Parameters:

g - The graphics context to use for painting.

update

public void update(java.awt.Graphics g)

Overridden for optimization. Does nothing.

Overrides:

update in class java.awt.Component

Parameters:

g - The graphics context to use for painting.

repaint

public void repaint()

Overridden for optimization. Does nothing.

Overrides:

repaint in class java.awt.Component

repaint

public void repaint(int x,
                    int y,
                    int width,
                    int height)

Overridden for optimization. Does Nothing.

Overrides:

repaint in class java.awt.Component

Parameters:

x - the x coordinate.

y - the y coordinate.

width - the width.

height - the height.

repaint

public void repaint(long tm,
                    int x,
                    int y,
                    int width,
                    int height)

Overridden for optimization. Does Nothing.

Overrides:

repaint in class java.awt.Component

Parameters:

tm - maximum time in milliseconds before update

x - the x coordinate.

y - the y coordinate.

width - the width.

height - the height.

disposeGraphics

public void disposeGraphics()

Dispose of graphics context. Necessary to resize the screen.

getPreferredSize

public java.awt.Dimension getPreferredSize()

Gets the preferred size of this component.

Overrides:

getPreferredSize in class java.awt.Component

Returns:

A dimension object indicating this component's preferred size.

getMinimumSize

public java.awt.Dimension getMinimumSize()

Gets the mininimum size of this component.

Overrides:

getMinimumSize in class java.awt.Component

Returns:

A dimension object indicating this component's minimum size.