Java JTable Column Size Calculate initColumnSizes(JTable table)

Description

init Column Sizes

License

Open Source License

Declaration

public static void initColumnSizes(JTable table) 

Method Source Code

//package com.java2s;
/**//from   ww w .j  a  v  a 2s. com
 *   Copyright 2004-2005 Sun Microsystems, Inc.
 *
 *   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.
 */

import javax.swing.*;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;
import javax.swing.table.TableModel;
import java.awt.Component;

public class Main {
    public static void initColumnSizes(JTable table) {
        TableModel model = (TableModel) table.getModel();
        Object[] longValues = new Object[model.getColumnCount()];

        for (int i = 0; i < model.getColumnCount(); i++) {
            longValues[i] = table.getModel().getColumnName(i);
        }

        TableColumn column = null;
        Component comp = null;
        int headerWidth = 0;
        int cellWidth = 0;

        TableCellRenderer headerRenderer = table.getTableHeader().getDefaultRenderer();

        for (int i = 0; i < 5; i++) {
            column = table.getColumnModel().getColumn(i);

            comp = headerRenderer.getTableCellRendererComponent(null, column.getHeaderValue(), false, false, 0, 0);
            headerWidth = comp.getPreferredSize().width;

            comp = table.getDefaultRenderer(model.getColumnClass(i)).getTableCellRendererComponent(table,
                    longValues[i], false, false, 0, i);
            cellWidth = comp.getPreferredSize().width;

            column.setPreferredWidth(Math.max(headerWidth, cellWidth));
        }
    }
}

Related

1. calculateColumnWidth(JTable table, int columnIndex)
2. calculateColumnWidth(JTable table, int columnIndex)
3. calculateColumnWidth_1(JTable table, int pos)
4. fixedColumSize(TableColumn c, int width)
5. fixSize(TableColumn column, JTable table)
6. initColumnSizes(JTable table, boolean[] show)
7. initColumnSizes(JTable table, int rowStart, int rowEnd)
8. initializeTableColumns(JTable table, int size[])
9. pointOutsidePrefSize(JTable table, int row, int column, Point p)