de.vandermeer.asciitable.v2.render.WidthUtilities.java Source code

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Here is the source code for de.vandermeer.asciitable.v2.render.WidthUtilities.java

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/* Copyright 2014 Sven van der Meer <vdmeer.sven@mykolab.com>
 *
 * 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 de.vandermeer.asciitable.v2.render;

import org.apache.commons.lang3.StringUtils;

import de.vandermeer.asciitable.v2.V2_AsciiTable;
import de.vandermeer.asciitable.v2.row.ContentRow;
import de.vandermeer.asciitable.v2.row.V2_Row;

/**
 * Utility methods for width calculation.
 *
 * @author     Sven van der Meer &lt;vdmeer.sven@mykolab.com&gt;
 * @version    v0.2.3 build 150910 (10-Sep-15) for Java 1.7
 * @since      v0.2.1
 */
public abstract class WidthUtilities {

    /**
     * Returns an array with the width of the longest word per column calculated from the given table.
     * Default padding will be added per column.
     * Padding for individual columns will be added if defined.
     * @param table to use for calculation
     * @return array with width of longest word for each column, null if input table was null
     */
    public static int[] longestWord(V2_AsciiTable table) {
        if (table == null) {
            return null;
        }

        if (table.getTable().size() == 0) {
            return new int[0];
        }

        int[] ret = new int[table.getColumnCount()];

        for (V2_Row row : table.getTable()) {
            if (row instanceof ContentRow) {
                ContentRow crow = (ContentRow) row;
                for (int i = 0; i < crow.getColumns().length; i++) {
                    if (crow.getColumns()[i] != null) {
                        String[] ar = StringUtils.split(crow.getColumns()[i].toString());
                        for (int k = 0; k < ar.length; k++) {
                            int count = ar[k].length() + crow.getPadding()[i] + crow.getPadding()[i];
                            if (count > ret[i]) {
                                ret[i] = count;
                            }
                        }
                    }
                }
            }
        }

        return ret;
    }
}