/**
* Build internal lists buttonDrag, keyDrags, etc from BehaviourMap(?) and InputMap(?). The
* internal lists only contain entries for Behaviours that can be actually triggered with the
* current InputMap, grouped by Behaviour type, such that hopefully lookup from the event handlers
* is fast.
*/
private void updateInternalMaps() {
buttonDrags.clear();
keyDrags.clear();
buttonClicks.clear();
keyClicks.clear();
for (final Entry<InputTrigger, Set<String>> entry : inputMap.getAllBindings().entrySet()) {
final InputTrigger buttons = entry.getKey();
final Set<String> behaviourKeys = entry.getValue();
if (behaviourKeys == null) continue;
for (final String behaviourKey : behaviourKeys) {
final Behaviour behaviour = behaviourMap.get(behaviourKey);
if (behaviour == null) continue;
if (behaviour instanceof DragBehaviour) {
final BehaviourEntry<DragBehaviour> dragEntry =
new BehaviourEntry<>(buttons, (DragBehaviour) behaviour);
if (buttons.isKeyStroke()) keyDrags.add(dragEntry);
else buttonDrags.add(dragEntry);
} else if (behaviour instanceof ClickBehaviour) {
final BehaviourEntry<ClickBehaviour> clickEntry =
new BehaviourEntry<>(buttons, (ClickBehaviour) behaviour);
if (buttons.isKeyStroke()) keyClicks.add(clickEntry);
else buttonClicks.add(clickEntry);
} else if (behaviour instanceof ScrollBehaviour) {
final BehaviourEntry<ScrollBehaviour> scrollEntry =
new BehaviourEntry<>(buttons, (ScrollBehaviour) behaviour);
scrolls.add(scrollEntry);
}
}
}
}
/**
* Make sure that the internal behaviour lists are up to date. For this, we keep track the
* modification count of {@link #inputMap} and {@link #behaviourMap}. If expected mod counts are
* not matched, call {@link #updateInternalMaps()} to rebuild the internal behaviour lists.
*/
private synchronized void update() {
final int imc = inputMap.modCount();
final int bmc = behaviourMap.modCount();
if (imc != inputMapExpectedModCount || bmc != behaviourMapExpectedModCount) {
inputMapExpectedModCount = imc;
behaviourMapExpectedModCount = bmc;
updateInternalMaps();
}
}
public void setInputMap(final InputTriggerMap inputMap) {
this.inputMap = inputMap;
inputMapExpectedModCount = inputMap.modCount() - 1;
}
