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Size: 1.9 KB
Versions: 9
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Stored size: 1.9 KB
Contents
package wordcram;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.HashMap;
import processing.core.PApplet;
// This is a healthy rip-off of
// https://github.com/processing/processing/wiki/Library-Basics#adding-your-own-library-events
class SketchCallbackObserver implements Observer {
PApplet parent;
HashMap<String, Method> sketchMethods = new HashMap<>();
SketchCallbackObserver(PApplet parent) {
this.parent = parent;
registerSketchMethod("wordsCounted", Word[].class);
registerSketchMethod("beginDraw");
registerSketchMethod("wordDrawn", Word.class);
registerSketchMethod("wordSkipped", Word.class);
registerSketchMethod("endDraw");
}
@Override
public void wordsCounted(Word[] words) {
invoke("wordsCounted", new Object[] { words });
}
@Override
public void beginDraw() {
invoke("beginDraw", new Object[0]);
}
@Override
public void wordDrawn(Word word) {
invoke("wordDrawn", new Object[] { word });
}
@Override
public void wordSkipped(Word word) {
invoke("wordSkipped", new Object[] { word });
}
@Override
public void endDraw() {
invoke("endDraw", new Object[0]);
}
private void registerSketchMethod(String name, Class... parameterTypes) {
try {
Method method = parent.getClass().getMethod(name, parameterTypes);
sketchMethods.put(name, method);
}
catch (NoSuchMethodException | SecurityException e) {
// The sketch doesn't have this method name. No worries.
}
}
private void invoke(String name, Object[] arguments) {
if (sketchMethods.containsKey(name)) {
Method method = sketchMethods.get(name);
try {
method.invoke(parent, arguments);
}
catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
System.err.println("Disabling method " + name + " because of an error.");
sketchMethods.remove(name);
}
}
}
}
Version data entries
9 entries across 9 versions & 1 rubygems