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.ViewModelModifiable;\r
  11 import net.mograsim.logic.ui.model.components.GUIComponent;\r
  12 \r
  13 public class WireCrossPoint extends GUIComponent\r
  14 {\r
  15         private static final int CIRCLE_RADIUS = 1;\r
  16         private static final int CIRCLE_DIAM = CIRCLE_RADIUS * 2;\r
  17 \r
  18         private final Pin pin;\r
  19         private final int logicWidth;\r
  20 \r
  21         private final LogicObserver logicObs;\r
  22         private ReadEnd end;\r
  23 \r
  24         public WireCrossPoint(ViewModelModifiable model, int logicWidth)\r
  25         {\r
  26                 super(model);\r
  27                 logicObs = (i) -> requestRedraw();\r
  28 \r
  29                 this.logicWidth = logicWidth;\r
  30                 setSize(CIRCLE_DIAM, CIRCLE_DIAM);\r
  31                 addPin(this.pin = new Pin(this, "", logicWidth, CIRCLE_RADIUS, CIRCLE_RADIUS));\r
  32         }\r
  33 \r
  34         public void moveCenterTo(double x, double y)\r
  35         {\r
  36                 moveTo(x - CIRCLE_RADIUS, y - CIRCLE_RADIUS);\r
  37         }\r
  38 \r
  39         @Override\r
  40         public void render(GeneralGC gc, Rectangle visibleRegion)\r
  41         {\r
  42                 Rectangle bounds = getBounds();\r
  43                 ColorHelper.executeWithDifferentBackground(gc, BitVectorFormatter.formatAsColor(end),\r
  44                                 () -> gc.fillOval(bounds.x, bounds.y, CIRCLE_DIAM, CIRCLE_DIAM));\r
  45         }\r
  46 \r
  47         public void setLogicModelBinding(ReadEnd end)\r
  48         {\r
  49                 deregisterLogicObs(this.end);\r
  50                 this.end = end;\r
  51                 registerLogicObs(end);\r
  52         }\r
  53 \r
  54         private void registerLogicObs(LogicObservable observable)\r
  55         {\r
  56                 if (observable != null)\r
  57                         observable.registerObserver(logicObs);\r
  58         }\r
  59 \r
  60         private void deregisterLogicObs(LogicObservable observable)\r
  61         {\r
  62                 if (observable != null)\r
  63                         observable.deregisterObserver(logicObs);\r
  64         }\r
  65 \r
  66         public int getLogicWidth()\r
  67         {\r
  68                 return logicWidth;\r
  69         }\r
  70 \r
  71         public Pin getPin()\r
  72         {\r
  73                 return pin;\r
  74         }\r
  75 }