/*
* Copyright 2003-2013 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package jetbrains.mps.editor.runtime.style;
import jetbrains.mps.openapi.editor.style.StyleAttribute;
/**
* User: shatalin
* Date: 1/14/13
*/
public abstract class AbstractStyleAttribute<T> implements StyleAttribute<T> {
private int myIndex;
private String myName;
/*package*/ AbstractStyleAttribute(String name, boolean register) {
myName = name;
myIndex = -1;
if (register) {
this.register();
}
}
public AbstractStyleAttribute(String name) {
this(name, false);
}
@Override
public String getName() {
return myName;
}
public String toString() {
return myName;
}
@Override
public int getIndex() {
assert myIndex != -1;
return myIndex;
}
@Override
public void register() {
assert myIndex == -1;
myIndex = StyleAttributes.getInstance().register(this);
}
@Override
public void unregister() {
assert myIndex != -1;
StyleAttributes.getInstance().unregister(this);
myIndex = -1;
}
@Override
public abstract T combine(T parentValue, T currentValue);
}