/*
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 DFlipFlopElm extends ChipElm {
final int FLAG_RESET = 2;
final int FLAG_SET = 4;
boolean hasReset() { return (flags & FLAG_RESET) != 0 || hasSet(); }
boolean hasSet() { return (flags & FLAG_SET) != 0; }
public DFlipFlopElm(int xx, int yy) { super(xx, yy); }
public DFlipFlopElm(int xa, int ya, int xb, int yb, int f,
StringTokenizer st) {
super(xa, ya, xb, yb, f, st);
pins[2].value = !pins[1].value;
}
String getChipName() { return "D flip-flop"; }
void setupPins() {
sizeX = 2;
sizeY = 3;
pins = new Pin[getPostCount()];
pins[0] = new Pin(0, SIDE_W, "D");
pins[1] = new Pin(0, SIDE_E, "Q");
pins[1].output = pins[1].state = true;
pins[2] = new Pin(hasSet()?1:2, SIDE_E, "Q");
pins[2].output = true;
pins[2].lineOver = true;
pins[3] = new Pin(1, SIDE_W, "");
pins[3].clock = true;
if (!hasSet()) {
if (hasReset())
pins[4] = new Pin(2, SIDE_W, "R");
} else {
pins[5] = new Pin(2, SIDE_W, "S");
pins[4] = new Pin(2, SIDE_E, "R");
}
}
int getPostCount() {
return 4 + (hasReset() ? 1 : 0) + (hasSet() ? 1 : 0);
}
int getVoltageSourceCount() { return 2; }
void reset() {
super.reset();
volts[2] = 5;
pins[2].value = true;
}
void execute() {
if (pins[3].value && !lastClock) {
pins[1].value = pins[0].value;
pins[2].value = !pins[0].value;
}
if(hasSet() && pins[5].value)
{
pins[1].value = true;
pins[2].value = false;
}
if(hasReset() && pins[4].value)
{
pins[1].value = false;
pins[2].value = true;
}
lastClock = pins[3].value;
}
int getDumpType() { return 155; }
public EditInfo getEditInfo(int n) {
if (n == 2) {
EditInfo ei = new EditInfo("", 0, -1, -1);
ei.checkbox = new Checkbox("Reset Pin", hasReset());
return ei;
}
if (n == 3) {
EditInfo ei = new EditInfo("", 0, -1, -1);
ei.checkbox = new Checkbox("Set Pin", hasSet());
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|FLAG_SET;
setupPins();
allocNodes();
setPoints();
}
if (n == 3) {
if (ei.checkbox.getState())
flags |= FLAG_SET;
else
flags &= ~FLAG_SET;
setupPins();
allocNodes();
setPoints();
}
super.setEditValue(n, ei);
}
}