jace/src/main/java/jace/core/KeyHandler.java

46 lines
1.6 KiB
Java

/*
* Copyright (C) 2012 Brendan Robert (BLuRry) brendan.robert@gmail.com.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301 USA
*/
package jace.core;
import java.awt.event.KeyEvent;
/**
* Listen for a specific key or set of keys
* If there is a match, the handleKeyUp or handleKeyDown methods will be called.
* This is meant to save a lot of extra conditional logic elsewhere.
*
* The handler methods should return true if they have consumed the key event and do
* not want any other processing to continue for that keypress.
* @author Brendan Robert (BLuRry) brendan.robert@gmail.com
*/
public abstract class KeyHandler {
public int key = 0;
public int modifiers = 0;
public KeyHandler(int key, int... modifiers) {
this.key = key;
this.modifiers = 0;
for (int m : modifiers) {
this.modifiers |= m;
}
}
public abstract boolean handleKeyUp(KeyEvent e);
public abstract boolean handleKeyDown(KeyEvent e);
}