it.unibz.inf.ontop.protege.utils.CustomTraversalPolicy.java Source code

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Here is the source code for it.unibz.inf.ontop.protege.utils.CustomTraversalPolicy.java

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package it.unibz.inf.ontop.protege.utils;

/*
 * #%L
 * ontop-protege4
 * %%
 * Copyright (C) 2009 - 2013 KRDB Research Centre. Free University of Bozen Bolzano.
 * %%
 * 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.
 * #L%
 */

import com.google.common.collect.Iterables;

import java.awt.*;
import java.util.ArrayList;
import java.util.List;

public class CustomTraversalPolicy extends FocusTraversalPolicy {
    List<Component> order;

    public CustomTraversalPolicy(List<Component> order) {
        this.order = new ArrayList<>(order.size());
        this.order.addAll(order);
    }

    public void setComponent(Component element, int index) {
        order.set(index, element);
    }

    public Component getComponentAfter(Container focusCycleRoot, Component aComponent) {
        int idx = (order.indexOf(aComponent) + 1) % order.size();
        return order.get(idx);
    }

    public Component getComponentBefore(Container focusCycleRoot, Component aComponent) {
        int idx = order.indexOf(aComponent) - 1;
        if (idx < 0) {
            idx = order.size() - 1;
        }
        return order.get(idx);
    }

    public Component getDefaultComponent(Container focusCycleRoot) {
        return order.get(0);
    }

    public Component getLastComponent(Container focusCycleRoot) {
        return Iterables.getLast(order);
    }

    public Component getFirstComponent(Container focusCycleRoot) {
        return order.get(0);
    }
}