/*
Copyright (C) Paul Falstad and Iain Sharp
This file is part of CircuitJS1.
CircuitJS1 is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
CircuitJS1 is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with CircuitJS1. If not, see <http://www.gnu.org/licenses/>.
*/
package com.lushprojects.circuitjs1.client;
//import java.awt.*;
//import java.util.StringTokenizer;
class JKFlipFlopElm extends ChipElm {
final int FLAG_RESET = 2;
boolean hasReset(){return (flags & FLAG_RESET)!= 0;}
public JKFlipFlopElm(int xx, int yy) { super(xx, yy); }
public JKFlipFlopElm(int xa, int ya, int xb, int yb, int f,
StringTokenizer st) {
super(xa, ya, xb, yb, f, st);
pins[4].value = !pins[3].value;
}
String getChipName() { return "JK flip-flop"; }
void setupPins() {
sizeX = 2;
sizeY = 3;
pins = new Pin[getPostCount()];
pins[0] = new Pin(0, SIDE_W, "J");
pins[1] = new Pin(1, SIDE_W, "");
pins[1].clock = true;
pins[1].bubble = true;
pins[2] = new Pin(2, SIDE_W, "K");
pins[3] = new Pin(0, SIDE_E, "Q");
pins[3].output = pins[3].state = true;
pins[4] = new Pin(2, SIDE_E, "Q");
pins[4].output = true;
pins[4].lineOver = true;
if(hasReset()){
pins[5] = new Pin(1, SIDE_E, "R");
}
}
int getPostCount() { return 5 + (hasReset() ? 1:0); }
int getVoltageSourceCount() { return 2; }
void execute() {
if (!pins[1].value && lastClock) {
boolean q = pins[3].value;
if (pins[0].value) {
if (pins[2].value)
q = !q;
else
q = true;
} else if (pins[2].value)
q = false;
pins[3].value = q;
pins[4].value = !q;
}
lastClock = pins[1].value;
if(hasReset()){
if(pins[5].value){
pins[3].value = false;
pins[4].value = true;
}
}
}
int getDumpType() { return 156; }
public EditInfo getEditInfo(int n){
if (n == 2){
EditInfo ei = new EditInfo("", 0, -1, -1);
ei.checkbox = new Checkbox("Reset Pin", hasReset());
return ei;
}
return super.getEditInfo(n);
}
public void setEditValue(int n, EditInfo ei){
if (n == 2){
if(ei.checkbox.getState()){
flags |= FLAG_RESET;
} else {
flags &= ~FLAG_RESET;
}
setupPins();
allocNodes();
setPoints();
}
super.setEditValue(n, ei);
}
}