hades.models.io
Class DiodeSwitch

java.lang.Object
  hades.simulator.SimObject
      hades.models.gates.GenericGate
          hades.models.io.DiodeSwitch

All Implemented Interfaces:

Assignable, java.lang.Cloneable, ContextToolTip, java.io.Serializable, Simulatable, Wakeable

public class DiodeSwitch

extends GenericGate

implements Wakeable, Assignable

DiodeSwitch - a simple subclass of GenericGate that models a switch in series with a diode. This type of switch is typically used for a switch matrix, e.g. a pocket calculator keypad.

Clicking on the switch will close the switch As usual, this switch is configured to be active low.

See Also:

Serialized Form

Field Summary

protected double	delay
protected PortStdLogic1164	port_A
protected PortStdLogic1164	port_Y
protected ColoredCircle	showOnOff
protected StdLogic1164	startValue
protected int	state

Fields inherited from class hades.models.gates.GenericGate

t_delay

Fields inherited from class hades.simulator.SimObject

classloader, console, debug, editor, name, parent, ports, propertySheet, simulator, symbol, versionId, visible

Constructor Summary

DiodeSwitch()
DiodeSwitch(): simple constructor

Method Summary

void	assign(java.lang.String value, double simTime) assign: set a new state for this switch at the specified time, also update the graphical symbol (if visible) via a WakeupEvent.
void	configure() configure: display a dialog to specify instance name, initial output value, and switch propagation delay.
void	elaborate(java.lang.Object arg) elaborate: set the selected inital state, show that state on the symbol, and generate a corresponding SimEvent on the Y output port.
void	evaluate(java.lang.Object arg) evaluate: This is only called when this switch is used as a hierarchy connector.
double	getDelay()
java.lang.String	getStartValue()
protected void	initDisplay()
boolean	initialize(java.lang.String s) initialize an DiodeSwitch from a String, which contains the integer version id, and optionally the initial start value (StdLogic1164.getChar) if the DiodeSwitch should start in the '0' state instead of the 'U' state.
void	mousePressed(java.awt.event.MouseEvent me) react to a MouseEvent.
void	setDelay(java.lang.String s)
void	setStartState()
void	setStartValue(java.lang.String s)
void	setSymbol(Symbol s)
void	showState()
void	wakeup(java.lang.Object arg) wakeup: this method is currently used to handle "external" events on this DiodeSwitch via the assign call, which schedules a Wakeup event to update our symbol at the correct simulation time.
void	write(java.io.PrintWriter ps) write the versionID and the initial start value of this switch, e.g.

Methods inherited from class hades.models.gates.GenericGate

copy, getToolTip, scheduleEvent, scheduleEventAfter, scheduleOutputValue, scheduleOutputValueAfter, setDelay

Methods inherited from class hades.simulator.SimObject

constructDynamicSymbol, getBindkey, getClassLoader, getDebug, getEditor, getExternalResources, getFullName, getName, getParent, getPort, getPorts, getPropertySheet, getResourceAsStream, getSimulator, getSymbol, getSymbolResourceName, getVersionId, isVisible, keyPressed, message, needsDynamicSymbol, needsExternalResources, setClassLoader, setConsole, setDebug, setEditor, setName, setParent, setPorts, setSimulator, setVersionId, setVisible, tearDown, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface hades.simulator.Simulatable

message

Field Detail

port_A

protected PortStdLogic1164 port_A

port_Y

protected PortStdLogic1164 port_Y

startValue

protected StdLogic1164 startValue

delay

protected double delay

state

protected int state

showOnOff

protected ColoredCircle showOnOff

Constructor Detail

DiodeSwitch

public DiodeSwitch()

DiodeSwitch(): simple constructor

Method Detail

getDelay

public double getDelay()

Overrides:

getDelay in class GenericGate

setDelay

public void setDelay(java.lang.String s)

Overrides:

setDelay in class GenericGate

getStartValue

public java.lang.String getStartValue()

setStartValue

public void setStartValue(java.lang.String s)

initialize

public boolean initialize(java.lang.String s)

initialize an DiodeSwitch from a String, which contains the integer version id, and optionally the initial start value (StdLogic1164.getChar) if the DiodeSwitch should start in the '0' state instead of the 'U' state.

Overrides:

initialize in class GenericGate

write

public void write(java.io.PrintWriter ps)

write the versionID and the initial start value of this switch, e.g. "1001 U"

Overrides:

write in class GenericGate

setSymbol

public void setSymbol(Symbol s)

Overrides:

setSymbol in class SimObject

initDisplay

protected void initDisplay()

setStartState

public void setStartState()

showState

public void showState()

mousePressed

public void mousePressed(java.awt.event.MouseEvent me)

Description copied from class: SimObject

react to a MouseEvent. The base SimObject ignores MouseEvents.

Note that the HADES schematic editor will also deliver jfig.canvas.FigCanvasEvent object, which also include the world-coordinates of the Event.

Overrides:

mousePressed in class SimObject

elaborate

public void elaborate(java.lang.Object arg)

elaborate: set the selected inital state, show that state on the symbol, and generate a corresponding SimEvent on the Y output port.

Specified by:

elaborate in interface Simulatable

Overrides:

elaborate in class GenericGate

evaluate

public void evaluate(java.lang.Object arg)

evaluate: This is only called when this switch is used as a hierarchy connector. Propagate the top-level input value to our output port after delay.

Specified by:

evaluate in interface Simulatable

Overrides:

evaluate in class SimObject

Parameters:

arg - an arbitrary object argument

assign

public void assign(java.lang.String value,
                   double simTime)

assign: set a new state for this switch at the specified time, also update the graphical symbol (if visible) via a WakeupEvent. Valid input "value"s are "0" (switch open), "1" (switch closed) and "U" or "X" (switch undefined).

Specified by:

assign in interface Assignable

wakeup

public void wakeup(java.lang.Object arg)

wakeup: this method is currently used to handle "external" events on this DiodeSwitch via the assign call, which schedules a Wakeup event to update our symbol at the correct simulation time. To this end, the "arg" argument is expected to hold a WakeupEvent whose arg member is a StdLogic1164 object.

Specified by:

wakeup in interface Wakeable

configure

public void configure()

configure: display a dialog to specify instance name, initial output value, and switch propagation delay.

Overrides:

configure in class GenericGate