Barrier.java
/*
* Copyright (C) 2022 The Android Open Source Project
*
* 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 androidx.constraintlayout.core.dsl;
import java.util.ArrayList;
public class Barrier extends Helper {
private Constraint.Side mDirection = null;
private int mMargin = Integer.MIN_VALUE;
private ArrayList<Ref> references = new ArrayList<>();
public Barrier(String name) {
super(name, new HelperType(typeMap.get(Type.BARRIER)));
}
public Barrier(String name, String config) {
super(name, new HelperType(typeMap.get(Type.BARRIER)), config);
configMap = convertConfigToMap();
if (configMap.containsKey("contains")) {
Ref.addStringToReferences(configMap.get("contains"), references);
}
}
/**
* Get the direction of the Barrier
*
* @return direction
*/
public Constraint.Side getDirection() {
return mDirection;
}
/**
* Set the direction of the Barrier
*
* @param direction
*/
public void setDirection(Constraint.Side direction) {
mDirection = direction;
configMap.put("direction", sideMap.get(direction));
}
/**
* Get the margin of the Barrier
*
* @return margin
*/
public int getMargin() {
return mMargin;
}
/**
* Set the margin of the Barrier
*
* @param margin
*/
public void setMargin(int margin) {
mMargin = margin;
configMap.put("margin", String.valueOf(margin));
}
/**
* Convert references into a String representation
*
* @return a String representation of references
*/
public String referencesToString() {
if (references.isEmpty()) {
return "";
}
StringBuilder builder = new StringBuilder("[");
for (Ref ref : references) {
builder.append(ref.toString());
}
builder.append("]");
return builder.toString();
}
/**
* Add a new reference
*
* @param ref reference
* @return Barrier
*/
public Barrier addReference(Ref ref) {
references.add(ref);
configMap.put("contains", referencesToString());
return this;
}
/**
* Add a new reference
*
* @param ref reference in a String representation
* @return Chain
*/
public Barrier addReference(String ref) {
return addReference(Ref.parseStringToRef(ref));
}
}