Java JButton Size setJButtonSizesTheSame(JButton[] btns)

Description

Change the sizes of all the passed buttons to be the size of the largest one.

License

Open Source License

Parameter

Parameter	Description
btns	Array of buttons to eb resized.

Exception

Parameter	Description
IllegalArgumentException	If <TT>btns</TT> is <TT>null</TT>.

Declaration

public static void setJButtonSizesTheSame(JButton[] btns) 

Method Source Code

//package com.java2s;
/*/*from w w  w . j a v  a  2  s.  com*/
 * Copyright (C) 2001-2004 Colin Bell
 * colbell@users.sourceforge.net
 *
 * This 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 2.1 of the License, or (at your option) any later version.
 *
 * This 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 this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

import javax.swing.*;

import java.awt.*;

import java.awt.geom.Rectangle2D;

public class Main {
    /**
     * Change the sizes of all the passed buttons to be the size of the
     * largest one.
     *
     * @param   btns   Array of buttons to eb resized.
     *
     * @throws IllegalArgumentException    If <TT>btns</TT> is <TT>null</TT>.
     */
    public static void setJButtonSizesTheSame(JButton[] btns) {
        if (btns == null) {
            throw new IllegalArgumentException("null JButton[] passed");
        }

        // Get the largest width and height
        final Dimension maxSize = new Dimension(0, 0);
        for (int i = 0; i < btns.length; ++i) {
            final JButton btn = btns[i];
            final FontMetrics fm = btn.getFontMetrics(btn.getFont());
            Rectangle2D bounds = fm.getStringBounds(btn.getText(), btn.getGraphics());
            int boundsHeight = (int) bounds.getHeight();
            int boundsWidth = (int) bounds.getWidth();
            maxSize.width = boundsWidth > maxSize.width ? boundsWidth : maxSize.width;
            maxSize.height = boundsHeight > maxSize.height ? boundsHeight : maxSize.height;
        }

        Insets insets = btns[0].getInsets();
        maxSize.width += insets.left + insets.right;
        maxSize.height += insets.top + insets.bottom;

        for (int i = 0; i < btns.length; ++i) {
            JButton btn = btns[i];
            btn.setPreferredSize(maxSize);
        }
    }
}

Related

1. makeButtonsSameSize(JButton[] buttons)
2. ScaleButtonIcon(javax.swing.JButton btn, int width, int height, int fontsize)
3. setButtonSize(JButton button, Dimension size)
4. setButtonSize(JButton button, int width, int height)
5. setJButtonSizesTheSame(final JButton[] btns)
6. setSizes(JButton[] aButtons, Dimension aPreferred, Dimension aMax)
7. SetStandardSizeForButton(JButton btn)