Java FontMetrics getStringForMaxWidth(FontMetrics fm, String s, int maxWidth)

Description

Returns a string that fit into the maximum width based on the parameter string.

License

Open Source License

Parameter

Parameter	Description
fm	The metrics of the font to be calculated with.
s	The string to calculate its width.
maxWidth	The maximum width the string is allowed to take.

Return

The orignal string if it fit into the maximum width otherwise it returns a cut string extended with "..." string.

Declaration

public static String getStringForMaxWidth(FontMetrics fm, String s, int maxWidth)

Method Source Code

//package com.java2s;
/**/*  w  w w  .  j  a  va  2s  .c o m*/
 * Squidy Interaction Library is free software: you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of the License,
 * or (at your option) any later version.
 * 
 * Squidy Interaction Library is distributed in the hope that it will be
 * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with Squidy Interaction Library. If not, see
 * <http://www.gnu.org/licenses/>.
 * 
 * 2009 Human-Computer Interaction Group, University of Konstanz.
 * <http://hci.uni-konstanz.de>
 * 
 * Please contact info@squidy-lib.de or visit our website
 * <http://www.squidy-lib.de> for further information.
 */

import java.awt.FontMetrics;

public class Main {
    /**
     * Returns a string that fit into the maximum width based on the parameter
     * string. It returns the orignal string if it fit into the maximum width
     * otherwise it returns a cut string extended with "..." string.
     * 
     * @param fm
     *            The metrics of the font to be calculated with.
     * @param s
     *            The string to calculate its width.
     * @param maxWidth
     *            The maximum width the string is allowed to take.
     * @return The orignal string if it fit into the maximum width otherwise it
     *         returns a cut string extended with "..." string.
     */
    public static String getStringForMaxWidth(FontMetrics fm, String s, int maxWidth) {

        boolean changed = false;
        for (int nameWidth = fm.stringWidth(s); nameWidth > maxWidth; nameWidth = fm.stringWidth(s.concat("..."))) {
            s = s.substring(0, s.length() - 1);
            changed = true;
        }

        if (changed) {
            return s.concat("...");
        }
        return s;
    }
}