package net.mograsim.logic.ui.model.wires;
-import net.mograsim.logic.ui.ColorHelper;
-import net.mograsim.logic.ui.model.ViewModel;
-import net.mograsim.logic.ui.model.components.GUIComponent;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonPrimitive;
+
import net.haspamelodica.swt.helper.gcs.GeneralGC;
import net.haspamelodica.swt.helper.swtobjectwrappers.Rectangle;
+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.ViewModelModifiable;
+import net.mograsim.logic.ui.model.components.GUIComponent;
+import net.mograsim.logic.ui.serializing.IndirectGUIComponentCreator;
+import net.mograsim.preferences.ColorDefinition;
+import net.mograsim.preferences.ColorManager;
-public class WireCrossPoint extends GUIComponent
+/**
+ * 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 implements ConnectionPoint
{
+ 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;
+ /**
+ * A {@link LogicObserver} calling {@link #requestRedraw()}.
+ */
+ private final LogicObserver logicObs;
+ /**
+ * The {@link ReadEnd} currently bound to this cross point.
+ */
private ReadEnd end;
- private final int logicWidth;
- public WireCrossPoint(ViewModel model, int logicWidth)
+ // creation and destruction
+
+ public WireCrossPoint(ViewModelModifiable model, int logicWidth)
{
super(model);
- this.logicWidth = logicWidth;
- setSize(0, 0);
- addPin(this.pin = new Pin(this, logicWidth, 0, 0));
+ logicObs = (i) -> requestRedraw();
+
+ setSize(CIRCLE_DIAM, CIRCLE_DIAM);
+ addPin(this.pin = new Pin(this, "", logicWidth, CIRCLE_RADIUS, CIRCLE_RADIUS));
+ }
+
+ // pins
+
+ @Override
+ 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);
}
@Override
public void render(GeneralGC gc, Rectangle visibleRegion)
{
- Rectangle bounds = getBounds();
- ColorHelper.executeWithDifferentBackground(gc, BitVectorFormatter.formatAsColor(end),
- () -> gc.fillOval(bounds.x - 1, bounds.y - 1, 2, 2));
+ ColorDefinition wireColor = BitVectorFormatter.formatAsColor(end);
+ if (wireColor != null)
+ gc.setBackground(ColorManager.current().toColor(wireColor));
+ 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)
{
+ if (this.end != null)
+ this.end.deregisterObserver(logicObs);
this.end = end;
- end.addObserver((i, o) -> callComponentLookChangedListeners());
+ if (end != null)
+ end.registerObserver(logicObs);
}
- public int getLogicWidth()
+ /**
+ * Returns whether this {@link WireCrossPoint} has a logic model binding or not.
+ */
+ public boolean hasLogicModelBinding()
{
- return logicWidth;
+ return end != null;
}
- public Pin getPin()
+ // serializing
+
+ @Override
+ public JsonElement getParams()
{
- return pin;
+ return new JsonPrimitive(pin.logicWidth);
+ }
+
+ static
+ {
+ IndirectGUIComponentCreator.setComponentProvider(WireCrossPoint.class.getCanonicalName(),
+ (m, p) -> new WireCrossPoint(m, p.getAsInt()));
}
}
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