set JTable Column Widths - Java Swing

Java examples for Swing:JTable Column

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Description

set JTable Column Widths

Demo Code

/*/*from  w  ww .  j a v  a2  s .  c  o m*/
 * Copyright 2015 Matthew Aguirre
 * 
 * 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 com.java2s;

import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.SwingUtilities;

import javax.swing.table.TableColumnModel;

public class Main {
    public static void setColumnWidths(JTable p_Table, int[] p_ColumnWidths) {
        TableColumnModel columns = p_Table.getTableHeader()
                .getColumnModel();
        // when restoring from the prefs with a new version of the product,
        // then it is possible that: p_ColumnWidths.length !=
        // columns.getColumnCount()
        if (p_ColumnWidths == null
                || p_ColumnWidths.length != columns.getColumnCount()) {
            return;
        }

        for (int i = 0, c = columns.getColumnCount(); i < c; i++) {
            columns.getColumn(i).setPreferredWidth(p_ColumnWidths[i]);
        }

        p_Table.getTableHeader().resizeAndRepaint();

        JScrollPane scrollpane = findScrollPane(p_Table);
        if (scrollpane != null) {
            scrollpane.invalidate();
        }

        p_Table.invalidate();
    }

    public static JScrollPane findScrollPane(JTable p_Table) {
        return (JScrollPane) SwingUtilities.getAncestorOfClass(
                JScrollPane.class, p_Table);
    }
}

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