LogicUI/src/era/mi/gui/model/wires/GUIWire.java

   1 package era.mi.gui.model.wires;
   2
   3 import org.eclipse.swt.SWT;
   4 import org.eclipse.swt.graphics.Color;
   5
   6 import era.mi.gui.model.ViewModel;
   7 import era.mi.logic.types.Bit;
   8 import era.mi.logic.wires.Wire;
   9 import net.haspamelodica.swt.helper.gcs.GeneralGC;
  10 import net.haspamelodica.swt.helper.swtobjectwrappers.Point;
  11
  12 public class GUIWire
  13 {
  14         private final ViewModel model;
  15         private Pin pin1;
  16         private Pin pin2;
  17         private double[] path;
  18
  19         private Wire wire;
  20
  21         public GUIWire(ViewModel model, Pin pin1, Pin pin2, Point... path)
  22         {
  23                 this.model = model;
  24                 this.path = new double[path.length * 2 + 4];
  25                 for (int srcI = 0, dstI = 2; srcI < path.length; srcI++, dstI += 2)
  26                 {
  27                         this.path[dstI + 0] = path[srcI].x;
  28                         this.path[dstI + 1] = path[srcI].y;
  29                 }
  30
  31                 this.pin1 = pin1;
  32                 this.pin2 = pin2;
  33
  34                 pin1.addPinMovedListener(p -> pin1Moved());
  35                 pin2.addPinMovedListener(p -> pin2Moved());
  36                 pin1Moved();
  37                 pin2Moved();
  38
  39                 model.wireCreated(this);
  40         }
  41
  42         private void pin1Moved()
  43         {
  44                 Point pos = pin1.getPos();
  45                 this.path[0] = pos.x;
  46                 this.path[1] = pos.y;
  47         }
  48
  49         private void pin2Moved()
  50         {
  51                 Point pos = pin2.getPos();
  52                 this.path[this.path.length - 2] = pos.x;
  53                 this.path[this.path.length - 1] = pos.y;
  54         }
  55
  56         public void destroy()
  57         {
  58                 model.wireDestroyed(this);
  59         }
  60
  61         public void render(GeneralGC gc)
  62         {
  63                 Color oldFG = gc.getForeground();
  64                 gc.setForeground(gc.getDevice().getSystemColor(getSWTColorConstantForWire(wire)));
  65                 gc.drawPolyline(path);
  66                 gc.setForeground(oldFG);
  67         }
  68
  69         public void setLogicModelWire(Wire wire)
  70         {
  71                 this.wire = wire;
  72         }
  73
  74         public static int getSWTColorConstantForWire(Wire wire)
  75         {
  76                 if (wire != null && wire.length == 1)
  77                         return getSWTColorConstantForBit(wire.getValue());
  78                 else
  79                         return SWT.COLOR_BLACK;
  80         }
  81
  82         public static int getSWTColorConstantForBit(Bit bit)
  83         {
  84                 switch (bit)
  85                 {
  86                 case ONE:
  87                         return SWT.COLOR_GREEN;
  88                 case ZERO:
  89                         return SWT.COLOR_BLUE;
  90                 case Z:
  91                         return SWT.COLOR_BLACK;
  92                 case U:
  93                 case X:
  94                         return SWT.COLOR_RED;
  95                 default:
  96                         throw new IllegalArgumentException("Unknown enum constant: " + bit);
  97                 }
  98         }
  99 }