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.logic.types.Bit;
   7 import era.mi.logic.wires.Wire;
   8 import net.haspamelodica.swt.helper.gcs.GeneralGC;
   9 import net.haspamelodica.swt.helper.swtobjectwrappers.Point;
  10
  11 public class GUIWire
  12 {
  13         private Pin pin1;
  14         private Pin pin2;
  15         private double[] path;
  16
  17         private Wire wire;
  18
  19         public GUIWire(Runnable redraw, Pin pin1, Pin pin2, Point... path)
  20         {
  21                 this.path = new double[path.length * 2 + 4];
  22                 for (int srcI = 0, dstI = 2; srcI < path.length; srcI++, dstI += 2)
  23                 {
  24                         this.path[dstI + 0] = path[srcI].x;
  25                         this.path[dstI + 1] = path[srcI].y;
  26                 }
  27                 // TODO support moving pins
  28                 Point pos;
  29                 pos = pin1.getPos();
  30                 this.path[0] = pos.x;
  31                 this.path[1] = pos.y;
  32                 pos = pin2.getPos();
  33                 this.path[this.path.length - 2] = pos.x;
  34                 this.path[this.path.length - 1] = pos.y;
  35         }
  36
  37         public void render(GeneralGC gc)
  38         {
  39                 Color oldFG = gc.getForeground();
  40                 gc.setForeground(gc.getDevice().getSystemColor(getSWTColorConstantForWire(wire)));
  41                 gc.drawPolyline(path);
  42                 gc.setForeground(oldFG);
  43         }
  44
  45         public void setLogicModelWire(Wire wire)
  46         {
  47                 this.wire = wire;
  48         }
  49
  50         public static int getSWTColorConstantForWire(Wire wire)
  51         {
  52                 if (wire != null && wire.length == 1)
  53                         return getSWTColorConstantForBit(wire.getValue());
  54                 else
  55                         return SWT.COLOR_BLACK;
  56         }
  57
  58         public static int getSWTColorConstantForBit(Bit bit)
  59         {
  60                 switch (bit)
  61                 {
  62                 case ONE:
  63                         return SWT.COLOR_GREEN;
  64                 case ZERO:
  65                         return SWT.COLOR_BLUE;
  66                 case Z:
  67                         return SWT.COLOR_BLACK;
  68                 case U:
  69                 case X:
  70                         return SWT.COLOR_RED;
  71                 default:
  72                         throw new IllegalArgumentException("Unknown enum constant: " + bit);
  73                 }
  74         }
  75 }