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