net.mograsim.logic.ui.am2900/src/net/mograsim/logic/ui/model/components/mi/nandbased/GUI_rsLatch.java

   1 package net.mograsim.logic.ui.model.components.mi.nandbased;
   2
   3 import net.haspamelodica.swt.helper.swtobjectwrappers.Point;
   4 import net.mograsim.logic.core.types.BitVector;
   5 import net.mograsim.logic.ui.model.ViewModelModifiable;
   6 import net.mograsim.logic.ui.model.components.GUINandGate;
   7 import net.mograsim.logic.ui.model.components.SimpleRectangularSubmodelComponent;
   8 import net.mograsim.logic.ui.model.wires.GUIWire;
   9 import net.mograsim.logic.ui.model.wires.Pin;
  10 import net.mograsim.logic.ui.model.wires.WireCrossPoint;
  11
  12 public class GUI_rsLatch extends SimpleRectangularSubmodelComponent
  13 {
  14         private GUIWire wireQ, wire_Q;
  15
  16         public GUI_rsLatch(ViewModelModifiable model)
  17         {
  18                 super(model, 1, "_rsLatch");
  19                 setSubmodelScale(.4);
  20                 setInputPins("_S", "_R");
  21                 setOutputPins("Q", "_Q");
  22                 initSubmodelComponents();
  23         }
  24
  25         @SuppressWarnings("unused") // for GUIWires being created
  26         private void initSubmodelComponents()
  27         {
  28                 Pin _S = getSubmodelPin("_S");
  29                 Pin _R = getSubmodelPin("_R");
  30                 Pin Q = getSubmodelPin("Q");
  31                 Pin _Q = getSubmodelPin("_Q");
  32
  33                 GUINandGate nand1 = new GUINandGate(submodelModifiable, 1);
  34                 GUINandGate nand2 = new GUINandGate(submodelModifiable, 1);
  35
  36                 WireCrossPoint cp1 = new WireCrossPoint(submodelModifiable, 1);
  37                 WireCrossPoint cp2 = new WireCrossPoint(submodelModifiable, 1);
  38
  39                 nand1.moveTo(10, 7.5);
  40                 nand2.moveTo(40, 12.5);
  41                 cp1.moveCenterTo(35, 17.5);
  42                 cp2.moveCenterTo(65, 37.5);
  43
  44                 new GUIWire(submodelModifiable, _S, nand1.getPin("A"), new Point[0]);
  45                 new GUIWire(submodelModifiable, _R, nand2.getPin("B"), new Point(35, 37.5), new Point(35, 27.5));
  46                 new GUIWire(submodelModifiable, nand1.getPin("Y"), cp1, new Point[0]);
  47                 new GUIWire(submodelModifiable, nand2.getPin("Y"), cp2, new Point(65, 22.5));
  48                 new GUIWire(submodelModifiable, cp1, nand2.getPin("A"), new Point[0]);
  49                 new GUIWire(submodelModifiable, cp2, nand1.getPin("B"), new Point(65, 42.5), new Point(5, 42.5), new Point(5, 22.5));
  50                 wireQ = new GUIWire(submodelModifiable, cp1, Q, new Point(35, 17.5), new Point(35, 7.5), new Point(65, 7.5), new Point(65, 12.5));
  51                 wire_Q = new GUIWire(submodelModifiable, cp2, _Q, new Point[0]);
  52         }
  53
  54         @Override
  55         public void setHighLevelState(String stateID, Object newState)
  56         {
  57                 if ("q".equals(stateID))
  58                 {
  59                         // TODO force this to happen without any Timeline updates in the meantime.
  60                         // Maybe make it a requirement of setHighLevelState that the Timeline is "halted" during a call?
  61                         BitVector newStateCasted = (BitVector) newState;
  62                         if (wireQ.hasLogicModelBinding())
  63                                 wireQ.forceWireValues(newStateCasted);
  64                         // We set both wires because then both outputs go to their correct state at the same time, and to avoid problems when not both
  65                         // inputs are 1
  66                         if (wire_Q.hasLogicModelBinding())
  67                                 wire_Q.forceWireValues(newStateCasted.not());
  68                 } else
  69                         super.setHighLevelState(stateID, newState);
  70         }
  71 }