--- /dev/null
+package net.mograsim.logic.model.model.wires;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Objects;
+import java.util.Set;
+import java.util.function.Consumer;
+
+import net.haspamelodica.swt.helper.swtobjectwrappers.Point;
+import net.mograsim.logic.model.model.LogicModelModifiable;
+import net.mograsim.logic.model.model.components.ModelComponent;
+
+/**
+ * A connection interface between a ModelComponent and the rest of a LogicModel. Pins usually are created by {@link ModelComponent}s
+ * themselves. <br>
+ * A pin has a name identifying it. Pin names are unique for a {@link ModelComponent}: Every pin of a {@link ModelComponent} has a different
+ * name, but different {@link ModelComponent}s can have pins with the same name.
+ *
+ * @author Daniel Kirschten
+ */
+public class Pin
+{
+ /**
+ * The {@link LogicModel} the component this pin belongs to is a part of.
+ */
+ private final LogicModelModifiable model;
+ /**
+ * The {@link ModelComponent} this pin belongs to.
+ */
+ public final ModelComponent component;
+ /**
+ * The name identifying this pin. Is unique for a {@link ModelComponent}.
+ */
+ public final String name;
+ /**
+ * The logical width of this pin. Denotes how many bits this pin consists of.
+ */
+ public final int logicWidth;
+ /**
+ * How this pin is used by the component it belongs to.<br>
+ * Note that this is only a hint.
+ */
+ public final PinUsage usage;
+
+ /**
+ * The X position of this pin, relative to its component's location.
+ */
+ protected double relX;
+ /**
+ * The Y position of this pin, relative to its component's location.
+ */
+ protected double relY;
+
+ private final List<Consumer<? super Pin>> pinMovedListeners;
+ private final List<Runnable> redrawListeners;
+
+ // creation and destruction
+
+ /**
+ * Creates a new pin. Usually it is not needed to call this constructor manually, as {@link ModelComponent}s create their pins
+ * themselves.
+ *
+ * @author Daniel Kirschten
+ */
+ public Pin(LogicModelModifiable model, ModelComponent component, String name, int logicWidth, PinUsage usage, double relX, double relY)
+ {
+ this.model = model;
+ this.component = component;
+ this.name = name;
+ this.logicWidth = logicWidth;
+ this.usage = Objects.requireNonNull(usage);
+ this.relX = relX;
+ this.relY = relY;
+
+ this.pinMovedListeners = new ArrayList<>();
+ this.redrawListeners = new ArrayList<>();
+
+ component.addComponentMovedListener(c -> callPinMovedListeners());
+ }
+
+ /**
+ * Destroys this pin by removing all wires connected to it from the model the component is a part of.<br>
+ * Don't call this method from application code as it is automatically called in {@link ModelComponent#removePin(String)}.
+ */
+ public void destroyed()
+ {
+ Set<ModelWire> connectedWires = new HashSet<>();
+ for (ModelWire w : model.getWiresByName().values())
+ if (w.getPin1() == this || w.getPin2() == this)
+ connectedWires.add(w);
+ connectedWires.forEach(model::destroyWire);
+ }
+
+ // "graphical" operations
+
+ /**
+ * Returns the X position of this pin relative to the position of its component.
+ *
+ * @author Daniel Kirschten
+ */
+ public double getRelX()
+ {
+ return relX;
+ }
+
+ /**
+ * Returns the Y position of this pin relative to the position of its component.
+ *
+ * @author Daniel Kirschten
+ */
+ public double getRelY()
+ {
+ return relY;
+ }
+
+ /**
+ * Returns the position of this pin relative to the position of its component.
+ *
+ * @author Daniel Kirschten
+ */
+ public Point getRelPos()
+ {
+ return new Point(relX, relY);
+ }
+
+ /**
+ * Returns the absolute position of this pin.
+ *
+ * @author Daniel Kirschten
+ */
+ public Point getPos()
+ {
+ return new Point(relX + component.getPosX(), relY + component.getPosY());
+ }
+
+ /**
+ * Sets the position of this pin relative to the position of its component.
+ *
+ * @author Daniel Kirschten
+ */
+ protected void setRelPos(double relX, double relY)
+ {
+ this.relX = relX;
+ this.relY = relY;
+ callPinMovedListeners();
+ callRedrawListeners();
+ }
+
+ // listeners
+
+ // @formatter:off
+ public void addPinMovedListener (Consumer<? super Pin> listener){pinMovedListeners.add (listener);}
+ public void addRedrawListener (Runnable listener){redrawListeners .add (listener);}
+
+ public void removePinMovedListener(Consumer<? super Pin> listener){pinMovedListeners.remove(listener);}
+ public void removeRedrawListener (Runnable listener){redrawListeners .remove(listener);}
+
+ private void callPinMovedListeners() {pinMovedListeners.forEach(l -> l.accept(this));}
+ private void callRedrawListeners () {redrawListeners .forEach(l -> l.run ( ));}
+ // @formatter:on
+
+ @Override
+ public String toString()
+ {
+ return "Pin " + name + " of " + component.getName();
+ }
+}
\ No newline at end of file
projects / Mograsim.git / blobdiff