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

   1 package net.mograsim.logic.ui.model.wires;\r
   2 \r
   3 import net.haspamelodica.swt.helper.gcs.GeneralGC;\r
   4 import net.haspamelodica.swt.helper.swtobjectwrappers.Rectangle;\r
   5 import net.mograsim.logic.core.LogicObservable;\r
   6 import net.mograsim.logic.core.LogicObserver;\r
   7 import net.mograsim.logic.core.types.BitVectorFormatter;\r
   8 import net.mograsim.logic.core.wires.Wire.ReadEnd;\r
   9 import net.mograsim.logic.ui.ColorHelper;\r
  10 import net.mograsim.logic.ui.model.ViewModel;\r
  11 import net.mograsim.logic.ui.model.components.GUIComponent;\r
  12 \r
  13 public class WireCrossPoint extends GUIComponent\r
  14 {\r
  15         private final Pin pin;\r
  16         private final int logicWidth;\r
  17 \r
  18         private final LogicObserver logicObs;\r
  19         private ReadEnd end;\r
  20 \r
  21         public WireCrossPoint(ViewModel model, int logicWidth)\r
  22         {\r
  23                 super(model);\r
  24                 logicObs = (i) -> requestRedraw();\r
  25 \r
  26                 this.logicWidth = logicWidth;\r
  27                 setSize(0, 0);\r
  28                 addPin(this.pin = new Pin(this, logicWidth, 0, 0));\r
  29         }\r
  30 \r
  31         @Override\r
  32         public void render(GeneralGC gc, Rectangle visibleRegion)\r
  33         {\r
  34                 Rectangle bounds = getBounds();\r
  35                 ColorHelper.executeWithDifferentBackground(gc, BitVectorFormatter.formatAsColor(end),\r
  36                                 () -> gc.fillOval(bounds.x - 1, bounds.y - 1, 2, 2));\r
  37         }\r
  38 \r
  39         public void setLogicModelBinding(ReadEnd end)\r
  40         {\r
  41                 deregisterLogicObs(this.end);\r
  42                 this.end = end;\r
  43                 registerLogicObs(end);\r
  44         }\r
  45 \r
  46         private void registerLogicObs(LogicObservable observable)\r
  47         {\r
  48                 if (observable != null)\r
  49                         observable.registerObserver(logicObs);\r
  50         }\r
  51 \r
  52         private void deregisterLogicObs(LogicObservable observable)\r
  53         {\r
  54                 if (observable != null)\r
  55                         observable.deregisterObserver(logicObs);\r
  56         }\r
  57 \r
  58         public int getLogicWidth()\r
  59         {\r
  60                 return logicWidth;\r
  61         }\r
  62 \r
  63         public Pin getPin()\r
  64         {\r
  65                 return pin;\r
  66         }\r
  67 }