Renamed GUI to Model:

[Mograsim.git] / net.mograsim.logic.model / src / net / mograsim / logic / model / model / wires / ModelWireCrossPoint.java

diff --git a/net.mograsim.logic.model/src/net/mograsim/logic/model/model/wires/ModelWireCrossPoint.java b/net.mograsim.logic.model/src/net/mograsim/logic/model/model/wires/ModelWireCrossPoint.java
new file mode 100644 (file)
index 0000000..f8d32ac
--- /dev/null
+++ b/net.mograsim.logic.model/src/net/mograsim/logic/model/model/wires/ModelWireCrossPoint.java
@@ -0,0 +1,138 @@
+package net.mograsim.logic.model.model.wires;
+
+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.CoreWire.ReadEnd;
+import net.mograsim.logic.model.model.ViewModelModifiable;
+import net.mograsim.logic.model.model.components.ModelComponent;
+import net.mograsim.logic.model.serializing.IdentifyParams;
+import net.mograsim.logic.model.serializing.IndirectModelComponentCreator;
+import net.mograsim.preferences.ColorDefinition;
+import net.mograsim.preferences.ColorManager;
+
+/**
+ * A {@link ModelComponent} 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
+ * ModelWireCrossPoint (<code>WCP</code>) and create the ModelWires <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 ModelWireCrossPoint extends ModelComponent
+{
+       private static final int CIRCLE_RADIUS = 1;
+       private static final int CIRCLE_DIAM = CIRCLE_RADIUS * 2;
+
+       /**
+        * The logical width of this cross point.
+        */
+       public final int logicWidth;
+       /**
+        * 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;
+
+       // creation and destruction
+
+       public ModelWireCrossPoint(ViewModelModifiable model, int logicWidth)
+       {
+               this(model, logicWidth, null);
+       }
+
+       public ModelWireCrossPoint(ViewModelModifiable model, int logicWidth, String name)
+       {
+               super(model, name);
+               this.logicWidth = logicWidth;
+               logicObs = (i) -> model.requestRedraw();
+
+               setSize(CIRCLE_DIAM, CIRCLE_DIAM);
+               addPin(this.pin = new Pin(this, "", logicWidth, PinUsage.TRISTATE, CIRCLE_RADIUS, CIRCLE_RADIUS));
+       }
+
+       // pins
+
+       public Pin getPin()
+       {
+               return pin;
+       }
+
+       // "graphical" operations
+
+       /**
+        * Moves the center (and therefore the pin) of this {@link ModelWireCrossPoint} 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)
+       {
+               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 ModelWireCrossPoint} to the given {@link ReadEnd}: The color of this {@link ModelWireCrossPoint} 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;
+               if (end != null)
+                       end.registerObserver(logicObs);
+       }
+
+       /**
+        * Returns whether this {@link ModelWireCrossPoint} has a logic model binding or not.
+        */
+       public boolean hasLogicModelBinding()
+       {
+               return end != null;
+       }
+
+       // serializing
+
+       @Override
+       public String getIDForSerializing(IdentifyParams idParams)
+       {
+               return "WireCrossPoint";
+       }
+
+       @Override
+       public Integer getParamsForSerializing(IdentifyParams idParams)
+       {
+               return logicWidth;
+       }
+
+       static
+       {
+               IndirectModelComponentCreator.setComponentSupplier(ModelWireCrossPoint.class.getCanonicalName(),
+                               (m, p, n) -> new ModelWireCrossPoint(m, p.getAsInt(), n));
+       }
+}
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