Package org.mt4j.input.gestureAction

Source Code of org.mt4j.input.gestureAction.DefaultDragAction

/***********************************************************************
* mt4j Copyright (c) 2008 - 2009, C.Ruff, Fraunhofer-Gesellschaft All rights reserved.
*   This program is free software: you can redistribute it and/or modify
*   it under the terms of the GNU General Public License as published by
*   the Free Software Foundation, either version 3 of the License, or
*   (at your option) any later version.
*
*   This program is distributed in the hope that it will be useful,
*   but WITHOUT ANY WARRANTY; without even the implied warranty of
*   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
*   GNU General Public License for more details.
*
*   You should have received a copy of the GNU General Public License
*   along with this program.  If not, see <http://www.gnu.org/licenses/>.
*
***********************************************************************/
package org.mt4j.input.gestureAction;

import org.mt4j.components.MTComponent;
import org.mt4j.components.interfaces.IMTComponent3D;
import org.mt4j.input.inputProcessors.IGestureEventListener;
import org.mt4j.input.inputProcessors.MTGestureEvent;
import org.mt4j.input.inputProcessors.componentProcessors.dragProcessor.DragEvent;



/**
* The Class DefaultDragAction.
* @author Christopher Ruff
*/
public class DefaultDragAction implements IGestureEventListener {
  private IMTComponent3D dragTarget;
  private boolean useCustomTarget;
 
  public DefaultDragAction(){
    this.useCustomTarget = false;
  }
 
  public DefaultDragAction(IMTComponent3D dragTarget){
    this.dragTarget = dragTarget;
    this.useCustomTarget = true;
  }
 

  /* (non-Javadoc)
   * @see com.jMT.input.gestureAction.IGestureAction#processGesture(com.jMT.input.inputAnalyzers.GestureEvent)
   */
  public boolean processGestureEvent(MTGestureEvent g) {
    if (g instanceof DragEvent){
      DragEvent dragEvent = (DragEvent)g;
     
      if (!useCustomTarget)
        dragTarget = dragEvent.getTargetComponent();
     
      switch (dragEvent.getId()) {
      case MTGestureEvent.GESTURE_DETECTED:
        //Put target on top -> draw on top of others
        if (dragTarget instanceof MTComponent){
          MTComponent baseComp = (MTComponent)dragTarget;
         
          baseComp.sendToFront();
         
          /*
          //End all animations of the target
          Animation[] animations = AnimationManager.getInstance().getAnimationsForTarget(dragTarget);
          for (int i = 0; i < animations.length; i++) {
            Animation animation = animations[i];
            animation.stop();
          }
          */
        }
        dragTarget.translateGlobal(dragEvent.getTranslationVect());
        break;
      case MTGestureEvent.GESTURE_UPDATED:
        dragTarget.translateGlobal(dragEvent.getTranslationVect());
        break;
      case MTGestureEvent.GESTURE_ENDED:
        break;
      default:
        break;
      }
    }
    return false;
  }

}
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