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DIControllers.java

/*
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 * Copyright 2002 Sun Microsystems, Inc. All rights reserved.
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package net.java.games.input;

import java.io.IOException;

/**
* @author elias
* @version 1.0
*/
00047 final class DIControllers {
      private final static DIDeviceObjectData di_event = new DIDeviceObjectData();

      /* synchronized to protect di_event */
      public final static synchronized boolean getNextDeviceEvent(Event event, IDirectInputDevice device) throws IOException {
            if (!device.getNextEvent(di_event))
                  return false;
            DIDeviceObject object = device.mapEvent(di_event);
            DIComponent component = device.mapObject(object);
            if (component == null)
                  return false;
            int event_value;
            if (object.isRelative()) {
                  event_value = object.getRelativeEventValue(di_event.getData());
            } else {
                  event_value = di_event.getData();
            }
            event.set(component, component.getDeviceObject().convertValue(event_value), di_event.getNanos());
            return true;
      }

      public final static float poll(Component component, DIDeviceObject object) throws IOException {
            int poll_data = object.getDevice().getPollData(object);
            float result;
            if (object.isRelative()) {
                  result = object.getRelativePollValue(poll_data);
            } else {
                  result = poll_data;
            }
            return object.convertValue(result);
      }
}

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