Java JTable Column Width Set autoResizeColWidthNoFill(JTable table)

Description

auto Resize Col Width No Fill

License

Open Source License

Declaration

public static int autoResizeColWidthNoFill(JTable table) 

Method Source Code

//package com.java2s;
// Licensed under the Apache License, Version 2.0 (the "License"); you may

import javax.swing.*;

import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.DefaultTableColumnModel;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;
import java.awt.*;

public class Main {
    public static int autoResizeColWidthNoFill(JTable table) {
        int totalWidth = 0;
        int headerWidth = 0;

        table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);

        int margin = 5;
        for (int i = 0; i < table.getColumnCount(); i++) {
            int vColIndex = i;
            DefaultTableColumnModel colModel = (DefaultTableColumnModel) 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();
            }//from  w  w w  .  ja  v a  2  s.  c o  m

            Component comp = renderer.getTableCellRendererComponent(table, col.getHeaderValue(), false, false, 0,
                    0);

            width = comp.getPreferredSize().width;
            headerWidth = 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;

            width = Math.max(width, headerWidth + 20); // Make sure the width is wider than the
                                                       // header plus 20 to leave room for sorting
                                                       // arrows.

            // Set the width
            col.setPreferredWidth(width);

            totalWidth += width;
        }

        ((DefaultTableCellRenderer) table.getTableHeader().getDefaultRenderer())
                .setHorizontalAlignment(SwingConstants.LEFT);

        // table.setAutoCreateRowSorter(true);
        table.getTableHeader().setReorderingAllowed(false);

        return totalWidth;
    }
}

Related

1. adjustColWidth(JTable table, int firstColumnWidth, int middleColumnWidth, int lastColumnWidth, int padding)
2. autoFitColumnWidth(JTable table, TableColumn tableColumn)
3. autoResizeColWidth(final JTable table, final DefaultTableModel model)
4. autoResizeColWidth(JTable table, AbstractTableModel model)
5. autoResizeColWidth(JTable table, int extraSpaceToColumn)
6. calcColumnWidth(int col)
7. chooseGoodColumnWidths(JTable table)
8. fitColumnWidth(JTable table, int colIndex, int padding)
9. fitColumnWidths(JTable table, int padding)