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/* XLogo4Schools - A Logo Interpreter specialized for use in schools, based on XLogo by Lo�c Le Coq
* Copyright (C) 2013 Marko Zivkovic
*
* Contact Information: marko88zivkovic at gmail dot com
*
* 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 2 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, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*
*
* This Java source code belongs to XLogo4Schools, written by Marko Zivkovic
* during his Bachelor thesis at the computer science department of ETH Z�rich,
* in the year 2013 and/or during future work.
*
* It is a reengineered version of XLogo written by Lo�c Le Coq, published
* under the GPL License at http://xlogo.tuxfamily.org/
*
* Contents of this file were entirely written by Marko Zivkovic
*/
package xlogo.interfaces;
import java.io.IOException;
/**
* X4S USER SPACE MODES<br>
* 1. User Mode : [lowest priority] (default, a.k.a. root context) cannot be killed, only 1 <br>
* 2. Contest Mode : [medium priority] only 0..1 can exist. If this is killed, all current network contexts are killed too.<br>
* 3. Network Mode : [highest priority] 0..n can exist, stacked on each other, 1 active at a time.
* <p>
* General Policy: <br>
* 1. Only one context is active at a time. <br>
* 2. Priority = if there exists a context which has higher priority, then this context's symbol tables and properties are active. <br>
* 3. If there exist multiple contexts of the same priority, then the last created is active. <br>
*
* @author Marko Zivkovic
*/
public interface X4SModeSwitcher
{
public String getSerializedContext();
public boolean isNetworkMode();
public boolean isRecordMode();
public boolean isUserMode();
public void pushNetworkMode(String serializedContext) throws IllegalArgumentException;
public void popNetworkMode();
public void startRecordMode(String[] fileNames) throws IllegalArgumentException, IllegalStateException, IOException;
public void stopRecordMode();
public void addModeChangedListener(ModeChangeListener listener);
public void removeModeChangedListener(ModeChangeListener listener);
public interface ModeChangeListener
{
public void recordModeStarted();
public void recordModeStopped();
public void networkModeStarted();
public void networkModeStopped();
}
}
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