jfrace.device
Class ThomsonGDP

java.lang.Object
  |
  +--java.awt.Component
        |
        +--java.awt.Canvas
              |
              +--jfrace.device.ThomsonGDP

All Implemented Interfaces:

javax.accessibility.Accessible, Device, Hardware, java.awt.image.ImageObserver, java.awt.MenuContainer, java.lang.Runnable, java.io.Serializable

public class ThomsonGDP

extends java.awt.Canvas

implements java.lang.Runnable, Device

Simulates a graphic display with the Thomson Graphic Display Processor (GDP) EF9365. The reserved registers with the addresses 14 and 15 are used to read the screen memory and the light pen switch, respectively.

Author:

Franz-Josef

See Also:

Serialized Form

Inner classes inherited from class java.awt.Canvas

java.awt.Canvas.AccessibleAWTCanvas

Inner classes inherited from class java.awt.Component

java.awt.Component.AccessibleAWTComponent

Field Summary

static int	ADR_CMD Address of CMD register.
static int	ADR_CSIZE Address of CSIZE register.
static int	ADR_CTRL1 Address of CTRL1 register.
static int	ADR_CTRL2 Address of CTRL2 register.
static int	ADR_DELTAX Address of DELTAX register.
static int	ADR_DELTAY Address of DELTAY register.
static int	ADR_LSWITCH Address of LSWITCH (light pen switch) register.
static int	ADR_MEM Address of MEM (memory) register.
static int	ADR_STATUS Address of STATUS register.
static int	ADR_X_LSB Address of X register (LSB).
static int	ADR_X_MSB Address of X register (MSB).
static int	ADR_XLP Address of XLP (light pen) register.
static int	ADR_Y_LSB Address of Y register (LSB).
static int	ADR_Y_MSB Address of Y register (MSB).
static int	ADR_YLP Address of YLP (light pen) register.
static byte	BLOCK44 Command: 4x4 block.
static byte	BLOCK58 Command: 5x8 block.
static byte	CLEAR Command: Clear screen.
static byte	DOWN Command: Pen/eraser down.
static byte	ERASER Command: Select eraser.
static byte	LPEN_PRESSED Light pen pressed.
static byte	LPEN_RELEASED Light pen released.
static byte	PEN Command: Select pen.
static byte	RESET Command: Reset everything.
static byte	UP Command: Pen/eraser up.

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

ThomsonGDP()
Default constructor.

Method Summary

byte	getByte(int address) Get the byte of a register
int	getNumberOfBits() Return 8.
int	getNumberOfUnits() Return 16.
int	getValue(int address) Get the value of a register of ThomsonGDP.
boolean	isFocusTraversable() Return true because focus should be traversable with TAB key.
void	paint(java.awt.Graphics g) Paint the screen memory.
java.awt.Dimension	preferredSize()
void	reset() Reset.
void	run() Run repaint thread.
void	setByte(int address, byte value) Set the byte of a register.
void	setValue(int address, int value) Set the value of a register of ThomsonGDP.
void	update(java.awt.Graphics g) Directly calls paint.

Methods inherited from class java.awt.Canvas

addNotify, getAccessibleContext

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addPropertyChangeListener, addPropertyChangeListener, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, deliverEvent, disable, disableEvents, dispatchEvent, doLayout, enable, enable, enableEvents, enableInputMethods, firePropertyChange, getAlignmentX, getAlignmentY, getBackground, getBounds, getBounds, getColorModel, getComponentAt, getComponentAt, getComponentOrientation, getCursor, getDropTarget, getFont, getFontMetrics, getForeground, getGraphics, getGraphicsConfiguration, getHeight, getInputContext, getInputMethodRequests, getListeners, getLocale, getLocation, getLocation, getLocationOnScreen, getMaximumSize, getMinimumSize, getName, getParent, getPeer, getPreferredSize, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, invalidate, isDisplayable, isDoubleBuffered, isEnabled, isLightweight, isOpaque, isShowing, isValid, isVisible, keyDown, keyUp, layout, list, list, list, list, list, locate, location, lostFocus, minimumSize, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, paramString, postEvent, prepareImage, prepareImage, print, printAll, processComponentEvent, processEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeNotify, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, reshape, resize, resize, setBackground, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFont, setForeground, setLocale, setLocation, setLocation, setName, setSize, setSize, setVisible, show, show, size, toString, transferFocus, validate

Methods inherited from class java.lang.Object

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

Field Detail

ADR_STATUS

public static final int ADR_STATUS

Address of STATUS register.

ADR_CMD

public static final int ADR_CMD

Address of CMD register.

ADR_CTRL1

public static final int ADR_CTRL1

Address of CTRL1 register.

ADR_CTRL2

public static final int ADR_CTRL2

Address of CTRL2 register.

ADR_CSIZE

public static final int ADR_CSIZE

Address of CSIZE register.

ADR_DELTAX

public static final int ADR_DELTAX

Address of DELTAX register.

ADR_DELTAY

public static final int ADR_DELTAY

Address of DELTAY register.

ADR_X_MSB

public static final int ADR_X_MSB

Address of X register (MSB).

ADR_X_LSB

public static final int ADR_X_LSB

Address of X register (LSB).

ADR_Y_MSB

public static final int ADR_Y_MSB

Address of Y register (MSB).

ADR_Y_LSB

public static final int ADR_Y_LSB

Address of Y register (LSB).

ADR_XLP

public static final int ADR_XLP

Address of XLP (light pen) register.

ADR_YLP

public static final int ADR_YLP

Address of YLP (light pen) register.

ADR_MEM

public static final int ADR_MEM

Address of MEM (memory) register.

ADR_LSWITCH

public static final int ADR_LSWITCH

Address of LSWITCH (light pen switch) register.

PEN

public static final byte PEN

Command: Select pen.

ERASER

public static final byte ERASER

Command: Select eraser.

DOWN

public static final byte DOWN

Command: Pen/eraser down.

UP

public static final byte UP

Command: Pen/eraser up.

CLEAR

public static final byte CLEAR

Command: Clear screen.

RESET

public static final byte RESET

Command: Reset everything.

LPEN_PRESSED

public static final byte LPEN_PRESSED

Light pen pressed.

LPEN_RELEASED

public static final byte LPEN_RELEASED

Light pen released.

BLOCK58

public static final byte BLOCK58

Command: 5x8 block.

BLOCK44

public static final byte BLOCK44

Command: 4x4 block.

Constructor Detail

ThomsonGDP

public ThomsonGDP()

Default constructor. Sets the background to black and the foreground to orange.

Method Detail

preferredSize

public java.awt.Dimension preferredSize()

Overrides:

preferredSize in class java.awt.Component

isFocusTraversable

public boolean isFocusTraversable()

Return true because focus should be traversable with TAB key.

Overrides:

isFocusTraversable in class java.awt.Component

update

public void update(java.awt.Graphics g)

Directly calls paint.

Overrides:

update in class java.awt.Component

paint

public void paint(java.awt.Graphics g)

Paint the screen memory.

Overrides:

paint in class java.awt.Canvas

run

public void run()

Run repaint thread. Polling for repaint requests.

Specified by:

run in interface java.lang.Runnable

reset

public void reset()

Reset.

Specified by:

reset in interface Hardware

getNumberOfBits

public int getNumberOfBits()

Return 8.

Specified by:

getNumberOfBits in interface Hardware

getNumberOfUnits

public int getNumberOfUnits()

Return 16.

Specified by:

getNumberOfUnits in interface Device

getValue

public int getValue(int address)

Get the value of a register of ThomsonGDP.

Specified by:

getValue in interface Device

Parameters:

address - register address.

Returns:

the value.

See Also:

getByte

setValue

public void setValue(int address,
                     int value)

Set the value of a register of ThomsonGDP.

Specified by:

setValue in interface Device

Parameters:

address - register address.

value - the new value.

See Also:

setByte

getByte

public byte getByte(int address)

Get the byte of a register

Specified by:

getByte in interface Device

Parameters:

address - register address.

Returns:

the value of the byte at address.

See Also:

getValue

setByte

public void setByte(int address,
                    byte value)

Set the byte of a register.

Specified by:

setByte in interface Device

Parameters:

address - register address.

value - new value of the byte at address.

See Also:

setValue