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

   1 package era.mi.gui.model.wires;
   2
   3 import java.util.ArrayList;
   4 import java.util.List;
   5 import java.util.function.Consumer;
   6
   7 import era.mi.gui.ColorHelper;
   8 import era.mi.gui.model.ViewModel;
   9 import era.mi.logic.types.BitVectorFormatter;
  10 import era.mi.logic.wires.Wire.ReadEnd;
  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 ViewModel model;
  17         private Pin pin1;
  18         private Pin pin2;
  19         private double[] path;
  20
  21         private final List<Consumer<? super GUIWire>> wireChangedListeners;
  22
  23         private ReadEnd end;
  24
  25         public GUIWire(ViewModel model, Pin pin1, Pin pin2, Point... path)
  26         {
  27                 this.model = model;
  28                 this.path = new double[path.length * 2 + 4];
  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
  35                 this.pin1 = pin1;
  36                 this.pin2 = pin2;
  37
  38                 wireChangedListeners = new ArrayList<>();
  39
  40                 pin1.addPinMovedListener(p -> pin1Moved());
  41                 pin2.addPinMovedListener(p -> pin2Moved());
  42                 pin1Moved();
  43                 pin2Moved();
  44
  45                 model.wireCreated(this);
  46         }
  47
  48         private void pin1Moved()
  49         {
  50                 Point pos = pin1.getPos();
  51                 this.path[0] = pos.x;
  52                 this.path[1] = pos.y;
  53         }
  54
  55         private void pin2Moved()
  56         {
  57                 Point pos = pin2.getPos();
  58                 this.path[this.path.length - 2] = pos.x;
  59                 this.path[this.path.length - 1] = pos.y;
  60         }
  61
  62         public void destroy()
  63         {
  64                 model.wireDestroyed(this);
  65         }
  66
  67         public void render(GeneralGC gc)
  68         {
  69                 ColorHelper.executeWithDifferentForeground(gc, BitVectorFormatter.formatAsColor(end), () -> gc.drawPolyline(path));
  70         }
  71
  72         public void setLogicModelBinding(ReadEnd end)
  73         {
  74                 this.end = end;
  75                 end.addObserver((i, o) -> callWireChangedListeners());
  76         }
  77
  78         // @formatter:off
  79         public void addWireChangedListener   (Consumer<? super GUIWire> listener) {wireChangedListeners.add   (listener);}
  80
  81         public void removeWireChangedListener(Consumer<? super GUIWire> listener) {wireChangedListeners.remove(listener);}
  82
  83         private void callWireChangedListeners() {wireChangedListeners.forEach(l -> l.accept(this));}
  84         // @formatter:on
  85
  86 }