Java JTable Column Pack packColumn(JTable table, int vColIndex, int margin)

Description

Sets the preferred width of the visible column specified by vColIndex.

License

Open Source License

Parameter

Parameter	Description
table	a parameter
vColIndex	a parameter
margin	a parameter

Declaration

public static void packColumn(JTable table, int vColIndex, int margin) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.awt.Component;

import javax.swing.JTable;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;
import javax.swing.table.TableColumnModel;

public class Main {
    /**/* ww  w .j av  a 2  s .  co  m*/
     * Sets the preferred width of the visible column specified by vColIndex. The column will be just wide enough to show the column head and the widest cell in the column. margin
     * pixels are added to the left and right (resulting in an additional width of 2*margin pixels).
     * 
     * @param table
     * @param vColIndex
     * @param margin
     */
    public static void packColumn(JTable table, int vColIndex, int margin) {
        TableColumnModel colModel = table.getColumnModel();
        TableColumn col = colModel.getColumn(vColIndex);
        int width = 0;

        // Get width of column header
        TableCellRenderer renderer = col.getHeaderRenderer();
        if (renderer == null) {
            renderer = table.getTableHeader().getDefaultRenderer();
        }
        Component comp = renderer.getTableCellRendererComponent(table,
                col.getHeaderValue(), false, false, 0, 0);
        width = comp.getPreferredSize().width;

        // Get maximum width of column data
        for (int r = 0; r < table.getRowCount(); r++) {
            renderer = table.getCellRenderer(r, vColIndex);
            comp = renderer.getTableCellRendererComponent(table,
                    table.getValueAt(r, vColIndex), false, false, r,
                    vColIndex);
            width = Math.max(width, comp.getPreferredSize().width);
        }

        // Add margin
        width += 2 * margin;

        // Set the width
        col.setPreferredWidth(width);
        col.setWidth(width);
        col.setMaxWidth(width);
    }
}

Related

1. packColumn(JTable table, int colIndex)
2. packColumn(JTable table, int colIndex)
3. packColumn(JTable table, int vColIndex, int margin)
4. packColumn(JTable table, int vColIndex, int margin)
5. packColumn(JTable table, int vColIndex, int margin)
6. packColumns(final JTable table, final int margin)
7. packColumns(JTable table)