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                 pin1.addPinMovedListener(p -> pin1Moved());
  32                 pin2.addPinMovedListener(p -> pin2Moved());
  33                 pin1Moved();
  34                 pin2Moved();
  35
  36                 model.wireCreated(this);
  37         }
  38
  39         private void pin1Moved()
  40         {
  41                 Point pos = pin1.getPos();
  42                 this.path[0] = pos.x;
  43                 this.path[1] = pos.y;
  44         }
  45
  46         private void pin2Moved()
  47         {
  48                 Point pos = pin2.getPos();
  49                 this.path[this.path.length - 2] = pos.x;
  50                 this.path[this.path.length - 1] = pos.y;
  51         }
  52
  53         public void destroy()
  54         {
  55                 model.wireDestroyed(this);
  56         }
  57
  58         public void render(GeneralGC gc)
  59         {
  60                 Color oldFG = gc.getForeground();
  61                 gc.setForeground(gc.getDevice().getSystemColor(getSWTColorConstantForWire(wire)));
  62                 gc.drawPolyline(path);
  63                 gc.setForeground(oldFG);
  64         }
  65
  66         public void setLogicModelWire(Wire wire)
  67         {
  68                 this.wire = wire;
  69         }
  70
  71         public static int getSWTColorConstantForWire(Wire wire)
  72         {
  73                 if (wire != null && wire.length == 1)
  74                         return getSWTColorConstantForBit(wire.getValue());
  75                 else
  76                         return SWT.COLOR_BLACK;
  77         }
  78
  79         public static int getSWTColorConstantForBit(Bit bit)
  80         {
  81                 switch (bit)
  82                 {
  83                 case ONE:
  84                         return SWT.COLOR_GREEN;
  85                 case ZERO:
  86                         return SWT.COLOR_BLUE;
  87                 case Z:
  88                         return SWT.COLOR_BLACK;
  89                 case U:
  90                 case X:
  91                         return SWT.COLOR_RED;
  92                 default:
  93                         throw new IllegalArgumentException("Unknown enum constant: " + bit);
  94                 }
  95         }
  96 }