import java.util.ArrayList;
import java.util.Arrays;
-import java.util.HashSet;
import java.util.List;
-import java.util.Set;
+import java.util.function.Consumer;
import org.eclipse.swt.SWT;
private double[] effectivePath;
private final List<Runnable> redrawListeners;
-
- private final Set<PathChangedListener> pathChangedListeners;
+ private final List<Consumer<GUIWire>> pathChangedListeners;
/**
* A LogicObserver calling redrawListeners. Used for logic model bindings.
*/
public GUIWire(ViewModelModifiable model, Pin pin1, Pin pin2, Point... path)
{
- pathChangedListeners = new HashSet<>();
- logicObs = (i) -> callRedrawListeners();
this.model = model;
this.logicWidth = pin1.logicWidth;
if (pin2.logicWidth != pin1.logicWidth)
this.bounds = new Rectangle(0, 0, -1, -1);
redrawListeners = new ArrayList<>();
+ pathChangedListeners = new ArrayList<>();
+
+ logicObs = (i) -> callRedrawListeners();
pin1.addPinMovedListener(p -> pinMoved());
pin2.addPinMovedListener(p -> pinMoved());
gc.drawPolyline(effectivePath);
}
+ // operations concerning the path
+
/**
* 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)}.<br>
*/
public Point[] getPath()
{
- return path == null ? null : path.clone();
+ return deepPathCopy(path);
+ }
+
+ public void setPath(Point... path)
+ {
+ this.path = deepPathCopy(path);
+ recalculateEffectivePath();
+ callPathChangedListeners();
+ callRedrawListeners();
+ }
+
+ public Point getPathPoint(int index)
+ {
+ return pointCopy(path[index]);
+ }
+
+ public void setPathPoint(Point p, int index)
+ {
+ path[index] = pointCopy(p);
+ recalculateEffectivePath();
+ callPathChangedListeners();
+ callRedrawListeners();
+ }
+
+ public void insertPathPoint(Point p, int index)
+ {
+ if (path == null)
+ path = new Point[] { pointCopy(p) };
+ else
+ {
+ Point[] oldPath = path;
+ path = new Point[oldPath.length + 1];
+ System.arraycopy(oldPath, 0, path, 0, index);
+ if (index < oldPath.length)
+ System.arraycopy(oldPath, index, path, index + 1, oldPath.length - index);
+ path[index] = pointCopy(p);
+ }
+ }
+
+ public void removePathPoint(int index)
+ {
+ if (path.length == 0)
+ path = null;
+ else
+ {
+ Point[] oldPath = path;
+ path = new Point[oldPath.length - 1];
+ System.arraycopy(oldPath, 0, path, 0, index);
+ if (index < oldPath.length - 1)
+ System.arraycopy(oldPath, index + 1, path, index, oldPath.length - index - 1);
+ }
+ }
+
+ public double[] getEffectivePath()
+ {
+ return Arrays.copyOf(effectivePath, effectivePath.length);
+ }
+
+ private static Point[] deepPathCopy(Point[] path)
+ {
+ if (path == null)
+ return null;
+ Point[] copy = new Point[path.length];
+ for (int i = 0; i < path.length; i++)
+ copy[i] = pointCopy(path[i]);
+ return copy;
+ }
+
+ private static Point pointCopy(Point p)
+ {
+ return new Point(p.x, p.y);
}
// logic model binding
// listeners
// @formatter:off
- public void addRedrawListener (Runnable listener) {redrawListeners .add (listener);}
+ public void addRedrawListener (Runnable listener) {redrawListeners .add (listener);}
+ public void addPathChangedListener (Consumer<GUIWire> listener) {pathChangedListeners.add (listener);}
- public void removeRedrawListener(Runnable listener) {redrawListeners .remove(listener);}
+ public void removeRedrawListener (Runnable listener) {redrawListeners .remove(listener);}
+ public void removePathChangedListener(Consumer<GUIWire> listener) {pathChangedListeners.remove(listener);}
- private void callRedrawListeners() {redrawListeners.forEach(l -> l.run());}
-
- public void addPathChangedListener(PathChangedListener l) { pathChangedListeners.add(l); }
-
- public void removePathChangedListener(PathChangedListener l) { pathChangedListeners.remove(l); }
-
- public void callPathChangedListeners(int diff) { pathChangedListeners.forEach(l -> l.pathChanged(this, diff)); }
-
- @FunctionalInterface
- public static interface PathChangedListener
- {
- /**
- * Called whenever the {@link Wire}'s path changes
- *
- * @param wire The wire which had its path changed
- * @param diff The length difference between before and after the path change.
- */
- public void pathChanged(GUIWire wire, int diff);
- }
+ private void callRedrawListeners () {redrawListeners .forEach(l -> l.run ( ));}
+ private void callPathChangedListeners() {pathChangedListeners.forEach(l -> l.accept(this));}
// @formatter:on
@Override
{
return "GUIWire [" + pin1 + "---" + pin2 + ", value=" + (end == null ? "null" : end.getValues()) + "]";
}
-
- public void setPath(Point[] path)
- {
- int diff = (path == null ? 0 : path.length) - (this.path == null ? 0 : this.path.length);
- this.path = path == null ? null : path.clone();
- recalculateEffectivePath();
- callPathChangedListeners(diff);
- callRedrawListeners();
- }
-
- public void setPathPoint(Point p, int index)
- {
- path[index] = p;
- recalculateEffectivePath();
- callPathChangedListeners(0);
- callRedrawListeners();
- }
-
- public void insertPathPoint(Point p, int index)
- {
- Point[] path = getPath();
- if (path == null)
- setPath(new Point[] { p });
- else
- {
- Point[] newPath = new Point[path.length + 1];
- System.arraycopy(path, 0, newPath, 0, index);
- if (index < path.length)
- System.arraycopy(path, index, newPath, index + 1, path.length - index);
- newPath[index] = p;
- setPath(newPath);
- }
- }
-
- public void removePathPoint(int index)
- {
- Point[] path = getPath();
- Point[] newPath = new Point[path.length - 1];
- System.arraycopy(path, 0, newPath, 0, index);
- if (index < path.length - 1)
- System.arraycopy(path, index + 1, newPath, index, path.length - index - 1);
- setPath(newPath);
- }
-
- /**
- * @throws IndexOutOfBoundsException
- */
- public Point getPathPoint(int index)
- {
- return path[index];
- }
-
- public int getPathLength()
- {
- return path.length;
- }
-
- public double[] getEffectivePath()
- {
- return effectivePath.clone();
- }
}
\ No newline at end of file
projects / Mograsim.git / blobdiff