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.types.Bit;
  10 import era.mi.logic.wires.Wire;
  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 Wire wire;
  17         private final double[] path;
  18
  19         public GUIWire(Runnable redraw, BasicGUIComponent component1, int component1ConnectionIndex, Point component1Pos,
  20                         BasicGUIComponent component2, int component2ConnectionIndex, Point component2Pos, Point... path)
  21         {
  22                 this.wire = component1.getConnectedWireEnd(component1ConnectionIndex).getWire();
  23                 if (!Objects.equals(wire, component2.getConnectedWireEnd(component2ConnectionIndex).getWire()))
  24                         throw new IllegalArgumentException("Given connection points are not connected!");
  25                 this.path = new double[path.length * 2 + 4];
  26                 Point component1ConnectionPoint = component1.getWireEndConnectionPoint(component1ConnectionIndex);
  27                 this.path[0] = component1Pos.x + component1ConnectionPoint.x;
  28                 this.path[1] = component1Pos.y + component1ConnectionPoint.y;
  29                 for (int srcI = 0, dstI = 2; srcI < path.length; srcI++, dstI += 2)
  30                 {
  31                         this.path[dstI + 0] = path[srcI].x;
  32                         this.path[dstI + 1] = path[srcI].y;
  33                 }
  34                 Point component2ConnectionPoint = component2.getWireEndConnectionPoint(component2ConnectionIndex);
  35                 this.path[this.path.length - 2] = component2Pos.x + component2ConnectionPoint.x;
  36                 this.path[this.path.length - 1] = component2Pos.y + component2ConnectionPoint.y;
  37
  38                 wire.createReadOnlyEnd().addObserver((initiator, oldValues) -> redraw.run());
  39         }
  40
  41         public void render(GeneralGC gc)
  42         {
  43                 Color oldFG = gc.getForeground();
  44                 if (wire.length == 1)
  45                         gc.setForeground(gc.getDevice().getSystemColor(getSWTColorConstantForBit(wire.getValue())));
  46                 gc.drawPolyline(path);
  47                 gc.setForeground(oldFG);
  48         }
  49
  50         public static int getSWTColorConstantForBit(Bit bit)
  51         {
  52                 switch (bit)
  53                 {
  54                 case ONE:
  55                         return SWT.COLOR_GREEN;
  56                 case ZERO:
  57                         return SWT.COLOR_BLUE;
  58                 case Z:
  59                         return SWT.COLOR_BLACK;
  60                 case U:
  61                 case X:
  62                         return SWT.COLOR_RED;
  63                 default:
  64                         throw new IllegalArgumentException("Unknown enum constant: " + bit);
  65                 }
  66         }
  67 }