/*
* 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.Style.IntPair;
import java.util.ArrayList;
import java.util.Collection;
/**
* User: Mihail.Buryakov
* Date: 11/28/13
*/
class StyleAttributeMap<T> extends StyleMap<Object> {
public static class DiscardValue {
private static DiscardValue myInstance;
private DiscardValue() {
}
public static DiscardValue getInstance() {
if (myInstance == null) {
myInstance = new DiscardValue();
}
return myInstance;
}
}
public static boolean isStyleAttributeMapEmpty(int topLevelPointer, int pointer, int index) {
if (pointer == -1) {
return index != 0 || TopLevelStyleMap.isEmpty(topLevelPointer);
} else {
return StyleMap.isEmpty(pointer);
}
}
public static Object get(Object styleMapOrValue, TopLevelStyleMap topLevelStyleMap, int topLevelPointer, int pointer) {
if (!(styleMapOrValue instanceof StyleAttributeMap)) {
return topLevelStyleMap.get(topLevelPointer);
} else {
StyleAttributeMap styleMap = (StyleAttributeMap) styleMapOrValue;
return styleMap.get(pointer);
}
}
public static int search(Object styleMapOrValue, int index) {
if (!(styleMapOrValue instanceof StyleAttributeMap)) {
return -1;
} else {
StyleAttributeMap styleMap = (StyleAttributeMap) styleMapOrValue;
return styleMap.search(index);
}
}
public Collection<IntPair<Object>> getAll() {
ArrayList<IntPair<Object>> result = new ArrayList<IntPair<Object>>(indexes.length);
for (int i = 0; i < indexes.length; i++) {
result.add(new IntPair<Object>(indexes[i], values[i]));
}
return result;
}
public Collection<IntPair<T>> getDiscardNullReplaced() {
ArrayList<IntPair<T>> result = new ArrayList<IntPair<T>>(indexes.length);
for (int i = 0; i < indexes.length; i++) {
if (values[i] instanceof DiscardValue) {
result.add(new IntPair<T>(indexes[i], null));
} else {
result.add(new IntPair<T>(indexes[i], (T) values[i]));
}
}
return result;
}
public void setValue(Object value) {
setValue(0, value);
}
}