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