/*
* Copyright (c) 2012, 2013 Hemanta Sapkota.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Hemanta Sapkota (laex.pearl@gmail.com)
*/
package com.laex.cg2d.model;
import com.laex.cg2d.model.model.Layer;
/**
* The Interface ILayerManager.
*/
public interface ILayerManager {
/**
* Gets the new layer id.
*
* @return the new layer id
*/
int getNewLayerId();
/**
* Layer count.
*
* @return the int
*/
int layerCount();
/**
* Gets the layer at.
*
* @param index
* the index
* @return the layer at
*/
Layer getLayerAt(int index);
/**
* Adds the layer.
*
* @param layer
* the layer
*/
void addLayer(Layer layer);
/**
* Removes the layer.
*
* @param layer
* the layer
*/
void removeLayer(Layer layer);
/**
* Removes the all.
*/
void removeAllLayers();
/**
* Change layer properties.
*
* @param changedLayer
* the changed layer
*/
void changeLayerProperties(Layer changedLayer);
/**
* Change layer order.
*
* @param orderedLayers
* the ordered layers
*/
void changeLayerOrder(Layer[] orderedLayers);
/**
* Gets the current layer.
*
* @return the current layer
*/
Layer getCurrentLayer();
}