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.Bit;
   5 import net.mograsim.logic.core.types.BitVector;
   6 import net.mograsim.logic.ui.model.ViewModelModifiable;
   7 import net.mograsim.logic.ui.model.components.atomic.GUINandGate;
   8 import net.mograsim.logic.ui.model.components.submodels.SimpleRectangularSubmodelComponent;
   9 import net.mograsim.logic.ui.model.wires.GUIWire;
  10 import net.mograsim.logic.ui.model.wires.Pin;
  11 import net.mograsim.logic.ui.model.wires.WireCrossPoint;
  12 import net.mograsim.logic.ui.serializing.IndirectGUIComponentCreator;
  13
  14 public class GUI_rsLatch extends SimpleRectangularSubmodelComponent
  15 {
  16         private GUIWire wireQ, wire_Q;
  17
  18         public GUI_rsLatch(ViewModelModifiable model)
  19         {
  20                 this(model, null);
  21         }
  22
  23         public GUI_rsLatch(ViewModelModifiable model, String name)
  24         {
  25                 super(model, 1, "_rsLatch", name);
  26                 setSubmodelScale(.4);
  27                 setInputPins("_S", "_R");
  28                 setOutputPins("Q", "_Q");
  29                 initSubmodelComponents();
  30         }
  31
  32         @SuppressWarnings("unused") // for GUIWires being created
  33         private void initSubmodelComponents()
  34         {
  35                 Pin _S = getSubmodelPin("_S");
  36                 Pin _R = getSubmodelPin("_R");
  37                 Pin Q = getSubmodelPin("Q");
  38                 Pin _Q = getSubmodelPin("_Q");
  39
  40                 GUINandGate nand1 = new GUINandGate(submodelModifiable, 1);
  41                 GUINandGate nand2 = new GUINandGate(submodelModifiable, 1);
  42
  43                 WireCrossPoint cp1 = new WireCrossPoint(submodelModifiable, 1);
  44                 WireCrossPoint cp2 = new WireCrossPoint(submodelModifiable, 1);
  45
  46                 nand1.moveTo(10, 7.5);
  47                 nand2.moveTo(40, 12.5);
  48                 cp1.moveCenterTo(35, 17.5);
  49                 cp2.moveCenterTo(65, 37.5);
  50
  51                 new GUIWire(submodelModifiable, _S, nand1.getPin("A"), new Point[0]);
  52                 new GUIWire(submodelModifiable, _R, nand2.getPin("B"), new Point(35, 37.5), new Point(35, 27.5));
  53                 new GUIWire(submodelModifiable, nand1.getPin("Y"), cp1, new Point[0]);
  54                 new GUIWire(submodelModifiable, nand2.getPin("Y"), cp2, new Point(65, 22.5));
  55                 new GUIWire(submodelModifiable, cp1, nand2.getPin("A"), new Point[0]);
  56                 new GUIWire(submodelModifiable, cp2, nand1.getPin("B"), new Point(65, 42.5), new Point(5, 42.5), new Point(5, 22.5));
  57                 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));
  58                 wire_Q = new GUIWire(submodelModifiable, cp2, _Q, new Point[0]);
  59
  60                 addAtomicHighLevelStateID("q");
  61         }
  62
  63         @Override
  64         public void setAtomicHighLevelState(String stateID, Object newState)
  65         {
  66                 switch (stateID)
  67                 {
  68                 case "q":
  69                         if (wireQ != null)
  70                         {
  71                                 // TODO force this to happen without any Timeline updates in the meantime.
  72                                 // Maybe make it a requirement of setHighLevelState that the Timeline is "halted" during a call?
  73                                 Bit newStateCasted = (Bit) newState;
  74                                 BitVector newStateVector = BitVector.of(newStateCasted);
  75                                 if (wireQ.hasLogicModelBinding())
  76                                         wireQ.forceWireValues(newStateVector);
  77                                 // We set both wires because then both outputs go to their correct state at the same time, and to avoid problems when not
  78                                 // both
  79                                 // inputs are 1
  80                                 if (wire_Q.hasLogicModelBinding())
  81                                         wire_Q.forceWireValues(newStateVector.not());
  82                         }
  83                         break;
  84                 default:
  85                         // should not happen because we tell SubmodelComponent to only allow these state IDs.
  86                         throw new IllegalStateException("Illegal atomic state ID: " + stateID);
  87                 }
  88         }
  89
  90         @Override
  91         public Object getAtomicHighLevelState(String stateID)
  92         {
  93                 switch (stateID)
  94                 {
  95                 case "q":
  96                         if (wireQ.hasLogicModelBinding())
  97                                 return wireQ.getWireValues().getBit(0);
  98                         return null;
  99                 default:
 100                         // should not happen because we tell SubmodelComponent to only allow these state IDs.
 101                         throw new IllegalStateException("Illegal atomic state ID: " + stateID);
 102                 }
 103         }
 104
 105         static
 106         {
 107                 IndirectGUIComponentCreator.setComponentSupplier(GUI_rsLatch.class.getCanonicalName(), (m, p, n) -> new GUI_rsLatch(m, n));
 108         }
 109 }