| /* |
| * Copyright (c) 2009-2010 jMonkeyEngine |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * * Neither the name of 'jMonkeyEngine' nor the names of its contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| package com.jme3.system; |
| |
| /** |
| * The <code>ContextListener> provides a means for an application |
| * to receive events relating to a context. |
| */ |
| public interface SystemListener { |
| |
| /** |
| * Callback to indicate the application to initialize. This method |
| * is called in the GL/Rendering thread so any GL-dependent resources |
| * can be initialized. |
| */ |
| public void initialize(); |
| |
| /** |
| * Called to notify the application that the resolution has changed. |
| * @param width |
| * @param height |
| */ |
| public void reshape(int width, int height); |
| |
| /** |
| * Callback to update the application state, and render the scene |
| * to the back buffer. |
| */ |
| public void update(); |
| |
| /** |
| * Called when the user requests to close the application. This |
| * could happen when he clicks the X button on the window, presses |
| * the Alt-F4 combination, attempts to shutdown the process from |
| * the task manager, or presses ESC. |
| * @param esc If true, the user pressed ESC to close the application. |
| */ |
| public void requestClose(boolean esc); |
| |
| /** |
| * Called when the application gained focus. The display |
| * implementation is not allowed to call this method before |
| * initialize() has been called or after destroy() has been called. |
| */ |
| public void gainFocus(); |
| |
| /** |
| * Called when the application lost focus. The display |
| * implementation is not allowed to call this method before |
| * initialize() has been called or after destroy() has been called. |
| */ |
| public void loseFocus(); |
| |
| /** |
| * Called when an error has occured. This is typically |
| * invoked when an uncought exception is thrown in the render thread. |
| * @param errorMsg The error message, if any, or null. |
| * @param t Throwable object, or null. |
| */ |
| public void handleError(String errorMsg, Throwable t); |
| |
| /** |
| * Callback to indicate that the context has been destroyed (either |
| * by the user or requested by the application itself). Typically |
| * cleanup of native resources should happen here. This method is called |
| * in the GL/Rendering thread. |
| */ |
| public void destroy(); |
| } |