GestureListenerProxy.java

package vax.input;

import com.badlogic.gdx.input.GestureDetector.GestureListener;
import com.badlogic.gdx.math.Vector2;

/**

 @author toor
 @param <T>
 */
public class GestureListenerProxy<T extends GestureListener> implements GestureListener {
    private T gestureListener;
    private boolean enabled = true, processed;

    public GestureListenerProxy () {
    }

    public GestureListenerProxy ( T gestureListener ) {
        this.gestureListener = gestureListener;
    }

    public T getGestureListener () {
        return gestureListener;
    }

    public void setGestureListener ( T gestureListener ) {
        this.gestureListener = gestureListener;
    }

    public boolean isEnabled () {
        return enabled;
    }

    public void setEnabled ( boolean enabled ) {
        this.enabled = enabled;
    }

    public boolean isProcessed () {
        return processed;
    }

    public boolean getAndResetProcessedFlag () {
        boolean b = processed;
        processed = false;
        return b;
    }

    public void resetProcessedFlag () {
        processed = false;
    }

    private boolean process ( boolean result ) {
        processed |= result;
        return result;
    }

    private boolean isValid () {
        return enabled && gestureListener != null;
    }

    @Override
    public boolean touchDown ( float x, float y, int pointer, int button ) {
        boolean result = isValid() ? gestureListener.touchDown( x, y, pointer, button ) : false;
        return process( result );
    }

    @Override
    public boolean tap ( float x, float y, int count, int button ) {
        boolean result = isValid() ? gestureListener.tap( x, y, count, button ) : false;
        return process( result );
    }

    @Override
    public boolean longPress ( float x, float y ) {
        boolean result = isValid() ? gestureListener.longPress( x, y ) : false;
        return process( result );
    }

    @Override
    public boolean fling ( float velocityX, float velocityY, int button ) {
        boolean result = isValid() ? gestureListener.fling( velocityX, velocityY, button ) : false;
        return process( result );
    }

    @Override
    public boolean pan ( float x, float y, float deltaX, float deltaY ) {
        boolean result = isValid() ? gestureListener.pan( x, y, deltaX, deltaY ) : false;
        return process( result );
    }

    @Override
    public boolean panStop ( float x, float y, int pointer, int button ) {
        boolean result = isValid() ? gestureListener.panStop( x, y, pointer, button ) : false;
        return process( result );
    }

    @Override
    public boolean zoom ( float initialDistance, float distance ) {
        boolean result = isValid() ? gestureListener.zoom( initialDistance, distance ) : false;
        return process( result );
    }

    @Override
    public boolean pinch ( Vector2 initialPointer1, Vector2 initialPointer2, Vector2 pointer1, Vector2 pointer2 ) {
        boolean result = isValid() ? gestureListener.pinch( initialPointer1, initialPointer2, pointer1, pointer2 ) : false;
        return process( result );
    }

}