import net.haspamelodica.swt.helper.gcs.GeneralGC;
import net.haspamelodica.swt.helper.swtobjectwrappers.Rectangle;
-import net.mograsim.logic.core.LogicObservable;
import net.mograsim.logic.core.LogicObserver;
import net.mograsim.logic.core.types.BitVectorFormatter;
import net.mograsim.logic.core.wires.Wire.ReadEnd;
import net.mograsim.logic.ui.model.components.GUIComponent;
import net.mograsim.logic.ui.model.components.SimpleRectangularGUIGate;
+/**
+ * A {@link GUIComponent} with only one pin. Is used to create wires connecting more than two pins. <br>
+ * Example: There are three pins <code>P1</code>, <code>P2</code>, <code>P3</code> that need to be connected. Solution: Create a
+ * WireCrossPoint (<code>WCP</code>) and create the GUIWires <code>P1</code>-<code>WCP</code>, <code>P2</code>-<code>WCP</code>,
+ * <code>P3</code>-<code>WCP</code>.<br>
+ * Cross points are drawn as circles. The pin of cross points is in the center of this circle.
+ *
+ * @author Daniel Kirschten
+ */
public class WireCrossPoint extends GUIComponent
{
private static final int CIRCLE_RADIUS = 1;
private static final int CIRCLE_DIAM = CIRCLE_RADIUS * 2;
+ /**
+ * The (single) pin of this cross point.
+ */
private final Pin pin;
- private final int logicWidth;
+ /**
+ * A {@link LogicObserver} calling {@link #requestRedraw()}.
+ */
private final LogicObserver logicObs;
+ /**
+ * The {@link ReadEnd} currently bound to this cross point.
+ */
private ReadEnd end;
+ // creation and destruction
+
public WireCrossPoint(ViewModelModifiable model, int logicWidth)
{
super(model);
logicObs = (i) -> requestRedraw();
- this.logicWidth = logicWidth;
setSize(CIRCLE_DIAM, CIRCLE_DIAM);
addPin(this.pin = new Pin(this, "", logicWidth, CIRCLE_RADIUS, CIRCLE_RADIUS));
}
+ // pins
+
+ public Pin getPin()
+ {
+ return pin;
+ }
+
+ // "graphical" operations
+
+ /**
+ * Moves the center (and therefore the pin) of this {@link WireCrossPoint} to the given location.
+ *
+ * @author Daniel Kirschten
+ */
public void moveCenterTo(double x, double y)
{
moveTo(x - CIRCLE_RADIUS, y - CIRCLE_RADIUS);
() -> gc.fillOval(getPosX(), getPosY(), CIRCLE_DIAM, CIRCLE_DIAM));
}
+ // logic model binding
+
+ /**
+ * Binds this {@link WireCrossPoint} to the given {@link ReadEnd}: The color of this {@link WireCrossPoint} will now depend on the state
+ * of the given {@link ReadEnd}, and further changes of the given {@link ReadEnd} will result in readrawListeners being called.<br>
+ * The argument can be null, in which case the old binding is stopped.
+ *
+ * @author Daniel Kirschten
+ */
public void setLogicModelBinding(ReadEnd end)
{
- deregisterLogicObs(this.end);
+ if (this.end != null)
+ this.end.deregisterObserver(logicObs);
this.end = end;
- registerLogicObs(end);
- }
-
- private void registerLogicObs(LogicObservable observable)
- {
- if (observable != null)
- observable.registerObserver(logicObs);
- }
-
- private void deregisterLogicObs(LogicObservable observable)
- {
- if (observable != null)
- observable.deregisterObserver(logicObs);
+ if (end != null)
+ end.registerObserver(logicObs);
}
- public int getLogicWidth()
- {
- return logicWidth;
- }
-
- public Pin getPin()
- {
- return pin;
- }
+ // serializing
@Override
public Map<String, Object> getInstantiationParameters()
{
Map<String, Object> m = super.getInstantiationParameters();
- m.put(SimpleRectangularGUIGate.kLogicWidth, logicWidth);
+ m.put(SimpleRectangularGUIGate.kLogicWidth, pin.logicWidth);
return m;
}
}
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