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 Pin pin1;
  15         private Pin pin2;
  16         private double[] path;
  17
  18         private Wire wire;
  19
  20         public GUIWire(ViewModel model, Pin pin1, Pin pin2, Point... path)
  21         {
  22                 this.path = new double[path.length * 2 + 4];
  23                 for (int srcI = 0, dstI = 2; srcI < path.length; srcI++, dstI += 2)
  24                 {
  25                         this.path[dstI + 0] = path[srcI].x;
  26                         this.path[dstI + 1] = path[srcI].y;
  27                 }
  28                 // TODO support moving pins
  29                 Point pos;
  30                 pos = pin1.getPos();
  31                 this.path[0] = pos.x;
  32                 this.path[1] = pos.y;
  33                 pos = pin2.getPos();
  34                 this.path[this.path.length - 2] = pos.x;
  35                 this.path[this.path.length - 1] = pos.y;
  36
  37                 model.wireCreated(this);
  38         }
  39
  40         public void render(GeneralGC gc)
  41         {
  42                 Color oldFG = gc.getForeground();
  43                 gc.setForeground(gc.getDevice().getSystemColor(getSWTColorConstantForWire(wire)));
  44                 gc.drawPolyline(path);
  45                 gc.setForeground(oldFG);
  46         }
  47
  48         public void setLogicModelWire(Wire wire)
  49         {
  50                 this.wire = wire;
  51         }
  52
  53         public static int getSWTColorConstantForWire(Wire wire)
  54         {
  55                 if (wire != null && wire.length == 1)
  56                         return getSWTColorConstantForBit(wire.getValue());
  57                 else
  58                         return SWT.COLOR_BLACK;
  59         }
  60
  61         public static int getSWTColorConstantForBit(Bit bit)
  62         {
  63                 switch (bit)
  64                 {
  65                 case ONE:
  66                         return SWT.COLOR_GREEN;
  67                 case ZERO:
  68                         return SWT.COLOR_BLUE;
  69                 case Z:
  70                         return SWT.COLOR_BLACK;
  71                 case U:
  72                 case X:
  73                         return SWT.COLOR_RED;
  74                 default:
  75                         throw new IllegalArgumentException("Unknown enum constant: " + bit);
  76                 }
  77         }
  78 }