Serializing now serializes everything; among many other things:
[Mograsim.git] / net.mograsim.logic.model / src / net / mograsim / logic / model / model / wires / WireCrossPoint.java
1 package net.mograsim.logic.model.model.wires;
2
3 import com.google.gson.JsonElement;
4 import com.google.gson.JsonPrimitive;
5
6 import net.haspamelodica.swt.helper.gcs.GeneralGC;
7 import net.haspamelodica.swt.helper.swtobjectwrappers.Rectangle;
8 import net.mograsim.logic.core.LogicObserver;
9 import net.mograsim.logic.core.types.BitVectorFormatter;
10 import net.mograsim.logic.core.wires.Wire.ReadEnd;
11 import net.mograsim.logic.model.model.ViewModelModifiable;
12 import net.mograsim.logic.model.model.components.GUIComponent;
13 import net.mograsim.logic.model.serializing.IdentifierGetter;
14 import net.mograsim.logic.model.serializing.IndirectGUIComponentCreator;
15 import net.mograsim.preferences.ColorDefinition;
16 import net.mograsim.preferences.ColorManager;
17
18 /**
19  * A {@link GUIComponent} with only one pin. Is used to create wires connecting more than two pins. <br>
20  * Example: There are three pins <code>P1</code>, <code>P2</code>, <code>P3</code> that need to be connected. Solution: Create a
21  * WireCrossPoint (<code>WCP</code>) and create the GUIWires <code>P1</code>-<code>WCP</code>, <code>P2</code>-<code>WCP</code>,
22  * <code>P3</code>-<code>WCP</code>.<br>
23  * Cross points are drawn as circles. The pin of cross points is in the center of this circle.
24  * 
25  * @author Daniel Kirschten
26  */
27 public class WireCrossPoint extends GUIComponent
28 {
29         private static final int CIRCLE_RADIUS = 1;
30         private static final int CIRCLE_DIAM = CIRCLE_RADIUS * 2;
31
32         /**
33          * The (single) pin of this cross point.
34          */
35         private final Pin pin;
36
37         /**
38          * A {@link LogicObserver} calling {@link #requestRedraw()}.
39          */
40         private final LogicObserver logicObs;
41         /**
42          * The {@link ReadEnd} currently bound to this cross point.
43          */
44         private ReadEnd end;
45
46         // creation and destruction
47
48         public WireCrossPoint(ViewModelModifiable model, int logicWidth)
49         {
50                 this(model, logicWidth, null);
51         }
52
53         public WireCrossPoint(ViewModelModifiable model, int logicWidth, String name)
54         {
55                 super(model, name);
56                 logicObs = (i) -> requestRedraw();
57
58                 setSize(CIRCLE_DIAM, CIRCLE_DIAM);
59                 addPin(this.pin = new Pin(this, "", logicWidth, CIRCLE_RADIUS, CIRCLE_RADIUS));
60         }
61
62         // pins
63
64         public Pin getPin()
65         {
66                 return pin;
67         }
68
69         // "graphical" operations
70
71         /**
72          * Moves the center (and therefore the pin) of this {@link WireCrossPoint} to the given location.
73          * 
74          * @author Daniel Kirschten
75          */
76         public void moveCenterTo(double x, double y)
77         {
78                 moveTo(x - CIRCLE_RADIUS, y - CIRCLE_RADIUS);
79         }
80
81         @Override
82         public void render(GeneralGC gc, Rectangle visibleRegion)
83         {
84                 ColorDefinition wireColor = BitVectorFormatter.formatAsColor(end);
85                 if (wireColor != null)
86                         gc.setBackground(ColorManager.current().toColor(wireColor));
87                 gc.fillOval(getPosX(), getPosY(), CIRCLE_DIAM, CIRCLE_DIAM);
88         }
89
90         // logic model binding
91
92         /**
93          * Binds this {@link WireCrossPoint} to the given {@link ReadEnd}: The color of this {@link WireCrossPoint} will now depend on the state
94          * of the given {@link ReadEnd}, and further changes of the given {@link ReadEnd} will result in readrawListeners being called.<br>
95          * The argument can be null, in which case the old binding is stopped.
96          * 
97          * @author Daniel Kirschten
98          */
99         public void setLogicModelBinding(ReadEnd end)
100         {
101                 if (this.end != null)
102                         this.end.deregisterObserver(logicObs);
103                 this.end = end;
104                 if (end != null)
105                         end.registerObserver(logicObs);
106         }
107
108         /**
109          * Returns whether this {@link WireCrossPoint} has a logic model binding or not.
110          */
111         public boolean hasLogicModelBinding()
112         {
113                 return end != null;
114         }
115
116         // serializing
117
118         @Override
119         public JsonElement getParamsForSerializing(IdentifierGetter idGetter)
120         {
121                 return new JsonPrimitive(pin.logicWidth);
122         }
123
124         static
125         {
126                 IndirectGUIComponentCreator.setComponentSupplier(WireCrossPoint.class.getCanonicalName(),
127                                 (m, p, n) -> new WireCrossPoint(m, p.getAsInt(), n));
128         }
129 }