X-Git-Url: https://mograsim.net/gitweb/?a=blobdiff_plain;f=net.mograsim.logic.ui%2Fsrc%2Fnet%2Fmograsim%2Flogic%2Fui%2Fmodel%2Fwires%2FGUIWire.java;h=e92044444891da1aecbe1081c31b31ce30cef6e4;hb=f14ea37d69488dd51518a36413af7176916b8bd7;hp=63c2160dab73d258dd5bbf6eea723b6d2f82b40f;hpb=d41ad7b05f8776139e1205d8e236743fa701312c;p=Mograsim.git diff --git a/net.mograsim.logic.ui/src/net/mograsim/logic/ui/model/wires/GUIWire.java b/net.mograsim.logic.ui/src/net/mograsim/logic/ui/model/wires/GUIWire.java index 63c2160d..e9204444 100644 --- a/net.mograsim.logic.ui/src/net/mograsim/logic/ui/model/wires/GUIWire.java +++ b/net.mograsim.logic.ui/src/net/mograsim/logic/ui/model/wires/GUIWire.java @@ -1,45 +1,148 @@ package net.mograsim.logic.ui.model.wires; import java.util.ArrayList; +import java.util.Arrays; import java.util.List; +import org.eclipse.swt.SWT; + import net.haspamelodica.swt.helper.gcs.GeneralGC; import net.haspamelodica.swt.helper.swtobjectwrappers.Point; -import net.mograsim.logic.core.LogicObservable; +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.ColorHelper; +import net.mograsim.logic.ui.model.ModelVisitor; import net.mograsim.logic.ui.model.ViewModelModifiable; +import net.mograsim.logic.ui.model.Visitable; -public class GUIWire +/** + * A wire connecting exactly two {@link Pin}s. + * + * @author Daniel Kirschten + */ +public class GUIWire implements Visitable { + /** + * The model this wire is a part of. + */ private final ViewModelModifiable model; + /** + * The logical width of this wire. Is equal to the logical with of {@link #pin1} and {@link #pin2}. + */ public final int logicWidth; + /** + * The {@link Pin} on one side of this wire, usually the signal source. + */ private Pin pin1; + /** + * The {@link Pin} on one side of this wire, usually the signal target. + */ private Pin pin2; - private double[] path; + /** + * The user-defined path between {@link #pin1} and {@link #pin2}.
+ * Special cases: null means "choose an interpolation as fits", and an empty array means "direct connection without any + * interpolation". + */ + private Point[] path; + /** + * The bounds of this wire, excluding line width (and line joins, if the line join is {@link SWT#JOIN_MITER}) + */ + private final Rectangle bounds; + /** + * The effective path of this wire, including automatic interpolation and the position of both {@link Pin}s. Is never null. + */ + private double[] effectivePath; private final List redrawListeners; + /** + * A LogicObserver calling redrawListeners. Used for logic model bindings. + */ private final LogicObserver logicObs; + /** + * A ReadEnd of the logic wire this GUI wire currently is bound to. + */ private ReadEnd end; + // creation and destruction + + /** + * Creates a new {@link GUIWire} with automatic interpolation. + * + * @author Daniel Kirschten + */ + public GUIWire(ViewModelModifiable model, WireCrossPoint pin1, WireCrossPoint pin2) + { + this(model, pin1, pin2, (Point[]) null); + } + + /** + * Creates a new {@link GUIWire} with automatic interpolation. + * + * @author Daniel Kirschten + */ + public GUIWire(ViewModelModifiable model, WireCrossPoint pin1, Pin pin2) + { + this(model, pin1, pin2, (Point[]) null); + } + + /** + * Creates a new {@link GUIWire} with automatic interpolation. + * + * @author Daniel Kirschten + */ + public GUIWire(ViewModelModifiable model, Pin pin1, WireCrossPoint pin2) + { + this(model, pin1, pin2, (Point[]) null); + } + + /** + * Creates a new {@link GUIWire} with automatic interpolation. + * + * @author Daniel Kirschten + */ + public GUIWire(ViewModelModifiable model, Pin pin1, Pin pin2) + { + this(model, pin1, pin2, (Point[]) null); + } + + /** + * Creates a new {@link GUIWire} without automatic interpolation. + * + * @author Daniel Kirschten + */ public GUIWire(ViewModelModifiable model, WireCrossPoint pin1, WireCrossPoint pin2, Point... path) { this(model, pin1.getPin(), pin2.getPin(), path); } + /** + * Creates a new {@link GUIWire} without automatic interpolation. + * + * @author Daniel Kirschten + */ public GUIWire(ViewModelModifiable model, WireCrossPoint pin1, Pin pin2, Point... path) { this(model, pin1.getPin(), pin2, path); } + /** + * Creates a new {@link GUIWire} without automatic interpolation. + * + * @author Daniel Kirschten + */ public GUIWire(ViewModelModifiable model, Pin pin1, WireCrossPoint pin2, Point... path) { this(model, pin1, pin2.getPin(), path); } + /** + * Creates a new {@link GUIWire} without automatic interpolation. + * + * @author Daniel Kirschten + */ public GUIWire(ViewModelModifiable model, Pin pin1, Pin pin2, Point... path) { logicObs = (i) -> callRedrawListeners(); @@ -48,93 +151,167 @@ public class GUIWire if (pin2.logicWidth != pin1.logicWidth) throw new IllegalArgumentException("Can't connect pins of different logic width"); - if (path.length == 0) - { - Point pos1 = pin1.getPos(), pos2 = pin2.getPos(); - path = new Point[] { new Point((pos1.x + pos2.x) / 2, pos1.y), new Point((pos1.x + pos2.x) / 2, pos2.y) }; - } - - applyPath(path); - this.pin1 = pin1; this.pin2 = pin2; + this.path = path == null ? null : Arrays.copyOf(path, path.length); + this.bounds = new Rectangle(0, 0, -1, -1); + redrawListeners = new ArrayList<>(); - pin1.addPinMovedListener(p -> pin1Moved()); - pin2.addPinMovedListener(p -> pin2Moved()); - pin1Moved(); - pin2Moved(); + pin1.addPinMovedListener(p -> pinMoved()); + pin2.addPinMovedListener(p -> pinMoved()); + + recalculateEffectivePath(); model.wireCreated(this); } - private void applyPath(Point... path) + /** + * Destroys this wire. This method implicitly calls {@link ViewModelModifiable#wireDestroyed(GUIWire) wireDestroyed()} for the model + * this component is a part of. + * + * @author Daniel Kirschten + */ + public void destroy() { - this.path = new double[path.length * 2 + 4]; - - for (int srcI = 0, dstI = 2; srcI < path.length; srcI++, dstI += 2) - { - this.path[dstI + 0] = path[srcI].x; - this.path[dstI + 1] = path[srcI].y; - } + model.wireDestroyed(this); } - private void pin1Moved() - { - Point pos = pin1.getPos(); - this.path[0] = pos.x; - this.path[1] = pos.y; - callRedrawListeners(); - } + // pins - private void pin2Moved() + /** + * Returns the {@link Pin} on one side of this wire, usually the signal source. + * + * @author Daniel Kirschten + */ + public Pin getPin1() { - Point pos = pin2.getPos(); - this.path[this.path.length - 2] = pos.x; - this.path[this.path.length - 1] = pos.y; - callRedrawListeners(); + return pin1; } - public void destroy() + /** + * Returns the {@link Pin} on one side of this wire, usually the signal target. + * + * @author Daniel Kirschten + */ + public Pin getPin2() { - model.wireDestroyed(this); + return pin2; } - public void render(GeneralGC gc) + /** + * Called when {@link #pin1} or {@link #pin2} were moved. + * + * @author Daniel Kirschten + */ + private void pinMoved() { - ColorHelper.executeWithDifferentForeground(gc, BitVectorFormatter.formatAsColor(end), () -> gc.drawPolyline(path)); + recalculateEffectivePath(); + callRedrawListeners(); } - public void setLogicModelBinding(ReadEnd end) + // "graphical" operations + + /** + * Recalculates {@link #effectivePath} "from scratch". Also updates {@link #bounds}. + * + * @author Daniel Kirschten + */ + private void recalculateEffectivePath() { - deregisterLogicObs(this.end); - this.end = end; - registerLogicObs(end); + Point pos1 = pin1.getPos(), pos2 = pin2.getPos(); + + double boundsX1 = Math.min(pos1.x, pos2.x); + double boundsY1 = Math.min(pos1.y, pos2.y); + double boundsX2 = Math.max(pos1.x, pos2.x); + double boundsY2 = Math.max(pos1.y, pos2.y); + + if (path == null) + effectivePath = new double[] { pos1.x, pos1.y, (pos1.x + pos2.x) / 2, pos1.y, (pos1.x + pos2.x) / 2, pos2.y, pos2.x, pos2.y }; + else + { + effectivePath = new double[path.length * 2 + 4]; + effectivePath[0] = pos1.x; + effectivePath[1] = pos1.y; + for (int srcI = 0, dstI = 2; srcI < path.length; srcI++, dstI += 2) + { + double pathX = path[srcI].x; + double pathY = path[srcI].y; + effectivePath[dstI + 0] = pathX; + effectivePath[dstI + 1] = pathY; + if (pathX < boundsX1) + boundsX1 = pathX; + if (pathX > boundsX2) + boundsX2 = pathX; + if (pathY < boundsY1) + boundsY1 = pathY; + if (pathY > boundsY2) + boundsY2 = pathY; + } + effectivePath[effectivePath.length - 2] = pos2.x; + effectivePath[effectivePath.length - 1] = pos2.y; + } + + bounds.x = boundsX1; + bounds.y = boundsY1; + bounds.width = boundsX2 - boundsX1; + bounds.height = boundsY2 - boundsY1; } - private void registerLogicObs(LogicObservable observable) + /** + * Returns the bounds of this wire, excluding line width (and line joins, if the line join is {@link SWT#JOIN_MITER}) + * + * @author Daniel Kirschten + */ + public Rectangle getBounds() { - if (observable != null) - observable.registerObserver(logicObs); + return new Rectangle(bounds.x, bounds.y, bounds.width, bounds.height); } - private void deregisterLogicObs(LogicObservable observable) + /** + * Render this wire to the given gc, in absoulute coordinates. + * + * @author Daniel Kirschten + */ + public void render(GeneralGC gc) { - if (observable != null) - observable.deregisterObserver(logicObs); + ColorHelper.executeWithDifferentForeground(gc, BitVectorFormatter.formatAsColor(end), () -> gc.drawPolyline(effectivePath)); } - public Pin getPin1() + /** + * The user-defined path between {@link #pin1} and {@link #pin2}. Note that this is not neccessarily equal to the effective path drawn + * in {@link #render(GeneralGC)}.
+ * Special cases: null means "choose an interpolation as fits", and an empty array means "direct connection without any + * interpolation". + * + * @author Daniel Kirschten + */ + public Point[] getPath() { - return pin1; + return path == null ? null : path.clone(); } - public Pin getPin2() + // logic model binding + + /** + * Binds this {@link GUIWire} to the given {@link ReadEnd}: The color of this {@link GUIWire} 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.
+ * The argument can be null, in which case the old binding is stopped. + * + * @author Daniel Kirschten + */ + public void setLogicModelBinding(ReadEnd end) { - return pin2; + if (this.end != null) + this.end.deregisterObserver(logicObs); + this.end = end; + if (end != null) + end.registerObserver(logicObs); } + // listeners + // @formatter:off public void addRedrawListener (Runnable listener) {redrawListeners .add (listener);} @@ -143,4 +320,15 @@ public class GUIWire private void callRedrawListeners() {redrawListeners.forEach(l -> l.run());} // @formatter:on + @Override + public String toString() + { + return "GUIWire [" + pin1 + "---" + pin2 + ", value=" + (end == null ? "null" : end.getValues()) + "]"; + } + + @Override + public void accept(ModelVisitor mv) + { + mv.visit(this); + } } \ No newline at end of file