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

   1 package era.mi.gui.wires;
   2
   3 import java.util.Objects;
   4
   5 import org.eclipse.swt.SWT;
   6 import org.eclipse.swt.graphics.Color;
   7
   8 import era.mi.gui.components.BasicGUIComponent;
   9 import era.mi.logic.Bit;
  10 import era.mi.logic.wires.WireArray;
  11 import net.haspamelodica.swt.helper.gcs.GeneralGC;
  12 import net.haspamelodica.swt.helper.swtobjectwrappers.Point;
  13
  14 public class GUIWire
  15 {
  16         private final WireArray wa;
  17         private final double[]  path;
  18
  19         public GUIWire(Runnable redraw, BasicGUIComponent component1, int component1ConnectionIndex, Point component1Pos, BasicGUIComponent component2, int component2ConnectionIndex, Point component2Pos, Point... path)
  20         {
  21                 this.wa = component1.getConnectedWireArray(component1ConnectionIndex);
  22                 if(!Objects.equals(wa, component2.getConnectedWireArray(component2ConnectionIndex)))
  23                         throw new IllegalArgumentException("Given connection points are not connected!");
  24                 this.path = new double[path.length * 2 + 4];
  25                 Point component1ConnectionPoint = component1.getWireArrayConnectionPoint(component1ConnectionIndex);
  26                 this.path[0] = component1Pos.x + component1ConnectionPoint.x;
  27                 this.path[1] = component1Pos.y + component1ConnectionPoint.y;
  28                 for(int srcI = 0, dstI = 2; srcI < path.length; srcI ++, dstI += 2)
  29                 {
  30                         this.path[dstI + 0] = path[srcI].x;
  31                         this.path[dstI + 1] = path[srcI].y;
  32                 }
  33                 Point component2ConnectionPoint = component2.getWireArrayConnectionPoint(component2ConnectionIndex);
  34                 this.path[this.path.length - 2] = component2Pos.x + component2ConnectionPoint.x;
  35                 this.path[this.path.length - 1] = component2Pos.y + component2ConnectionPoint.y;
  36
  37                 wa.addObserver((initiator, oldValues) -> redraw.run());
  38         }
  39
  40         public void render(GeneralGC gc)
  41         {
  42                 Color oldFG = gc.getForeground();
  43                 if(wa.length == 1)
  44                         gc.setForeground(gc.getDevice().getSystemColor(getSWTColorConstantForBit(wa.getValue())));
  45                 gc.drawPolyline(path);
  46                 gc.setForeground(oldFG);
  47         }
  48
  49         public static int getSWTColorConstantForBit(Bit bit)
  50         {
  51                 switch(bit)
  52                 {
  53                         case ONE:
  54                                 return SWT.COLOR_GREEN;
  55                         case ZERO:
  56                                 return SWT.COLOR_BLUE;
  57                         case Z:
  58                                 return SWT.COLOR_BLACK;
  59                         case U:
  60                         case X:
  61                                 return SWT.COLOR_RED;
  62                         default:
  63                                 throw new IllegalArgumentException("Unknown enum constant: " + bit);
  64                 }
  65         }
  66 }