net.mograsim.logic.ui/src/net/mograsim/logic/ui/model/wires/GUIWire.java

   1 package net.mograsim.logic.ui.model.wires;\r
   2 \r
   3 import java.util.ArrayList;\r
   4 import java.util.List;\r
   5 \r
   6 import net.haspamelodica.swt.helper.gcs.GeneralGC;\r
   7 import net.haspamelodica.swt.helper.swtobjectwrappers.Point;\r
   8 import net.mograsim.logic.core.LogicObservable;\r
   9 import net.mograsim.logic.core.LogicObserver;\r
  10 import net.mograsim.logic.core.types.BitVectorFormatter;\r
  11 import net.mograsim.logic.core.wires.Wire.ReadEnd;\r
  12 import net.mograsim.logic.ui.ColorHelper;\r
  13 import net.mograsim.logic.ui.model.ViewModelModifiable;\r
  14 \r
  15 public class GUIWire\r
  16 {\r
  17         private final ViewModelModifiable model;\r
  18         public final int logicWidth;\r
  19         private Pin pin1;\r
  20         private Pin pin2;\r
  21         private double[] path;\r
  22 \r
  23         private final List<Runnable> redrawListeners;\r
  24 \r
  25         private final LogicObserver logicObs;\r
  26         private ReadEnd end;\r
  27 \r
  28         public GUIWire(ViewModelModifiable model, WireCrossPoint pin1, WireCrossPoint pin2, Point... path)\r
  29         {\r
  30                 this(model, pin1.getPin(), pin2.getPin(), path);\r
  31         }\r
  32 \r
  33         public GUIWire(ViewModelModifiable model, WireCrossPoint pin1, Pin pin2, Point... path)\r
  34         {\r
  35                 this(model, pin1.getPin(), pin2, path);\r
  36         }\r
  37 \r
  38         public GUIWire(ViewModelModifiable model, Pin pin1, WireCrossPoint pin2, Point... path)\r
  39         {\r
  40                 this(model, pin1, pin2.getPin(), path);\r
  41         }\r
  42 \r
  43         public GUIWire(ViewModelModifiable model, Pin pin1, Pin pin2, Point... path)\r
  44         {\r
  45                 logicObs = (i) -> callRedrawListeners();\r
  46                 this.model = model;\r
  47                 this.logicWidth = pin1.logicWidth;\r
  48                 if (pin2.logicWidth != pin1.logicWidth)\r
  49                         throw new IllegalArgumentException("Can't connect pins of different logic width");\r
  50                 this.path = new double[path.length * 2 + 4];\r
  51                 for (int srcI = 0, dstI = 2; srcI < path.length; srcI++, dstI += 2)\r
  52                 {\r
  53                         this.path[dstI + 0] = path[srcI].x;\r
  54                         this.path[dstI + 1] = path[srcI].y;\r
  55                 }\r
  56 \r
  57                 this.pin1 = pin1;\r
  58                 this.pin2 = pin2;\r
  59 \r
  60                 redrawListeners = new ArrayList<>();\r
  61 \r
  62                 pin1.addPinMovedListener(p -> pin1Moved());\r
  63                 pin2.addPinMovedListener(p -> pin2Moved());\r
  64                 pin1Moved();\r
  65                 pin2Moved();\r
  66 \r
  67                 model.wireCreated(this);\r
  68         }\r
  69 \r
  70         private void pin1Moved()\r
  71         {\r
  72                 Point pos = pin1.getPos();\r
  73                 this.path[0] = pos.x;\r
  74                 this.path[1] = pos.y;\r
  75                 callRedrawListeners();\r
  76         }\r
  77 \r
  78         private void pin2Moved()\r
  79         {\r
  80                 Point pos = pin2.getPos();\r
  81                 this.path[this.path.length - 2] = pos.x;\r
  82                 this.path[this.path.length - 1] = pos.y;\r
  83                 callRedrawListeners();\r
  84         }\r
  85 \r
  86         public void destroy()\r
  87         {\r
  88                 model.wireDestroyed(this);\r
  89         }\r
  90 \r
  91         public void render(GeneralGC gc)\r
  92         {\r
  93                 ColorHelper.executeWithDifferentForeground(gc, BitVectorFormatter.formatAsColor(end), () -> gc.drawPolyline(path));\r
  94         }\r
  95 \r
  96         public void setLogicModelBinding(ReadEnd end)\r
  97         {\r
  98                 deregisterLogicObs(this.end);\r
  99                 this.end = end;\r
 100                 registerLogicObs(end);\r
 101         }\r
 102 \r
 103         private void registerLogicObs(LogicObservable observable)\r
 104         {\r
 105                 if (observable != null)\r
 106                         observable.registerObserver(logicObs);\r
 107         }\r
 108 \r
 109         private void deregisterLogicObs(LogicObservable observable)\r
 110         {\r
 111                 if (observable != null)\r
 112                         observable.deregisterObserver(logicObs);\r
 113         }\r
 114 \r
 115         public Pin getPin1()\r
 116         {\r
 117                 return pin1;\r
 118         }\r
 119 \r
 120         public Pin getPin2()\r
 121         {\r
 122                 return pin2;\r
 123         }\r
 124 \r
 125         // @formatter:off\r
 126         public void addRedrawListener   (Runnable listener) {redrawListeners         .add   (listener);}\r
 127 \r
 128         public void removeRedrawListener(Runnable listener) {redrawListeners         .remove(listener);}\r
 129 \r
 130         private void callRedrawListeners() {redrawListeners.forEach(l -> l.run());}\r
 131         // @formatter:on\r
 132 \r
 133 }