Java JTable Column Pack packColumnsWidthFixedFirst(JTable table, int margin)

Description

pack Columns Width Fixed First

License

Open Source License

Declaration

public static int packColumnsWidthFixedFirst(JTable table, int margin) 

Method Source Code

//package com.java2s;
/*/*from  www .ja v a 2 s  .  c o  m*/
 * Copyright (c) 2009 Albert Kurucz. 
 *
 * This file, Util.java is part of JTStand.
 *
 * JTStand 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 3 of the License, or
 * (at your option) any later version.
 *
 * JTStand 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 GTStand.  If not, see <http://www.gnu.org/licenses/>.
 */

import java.awt.Component;

import java.awt.Dimension;

import javax.swing.JTable;

import javax.swing.table.DefaultTableColumnModel;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;

public class Main {
    public static int packColumnsWidthFixedFirst(JTable table, int margin) {
        int width = 0;
        for (int c = 0; c < table.getColumnCount(); c++) {
            if (c == 0) {
                width += packColumn(table, c, margin, true);
            } else {
                width += packColumn(table, c, margin, false);
            }
        }
        return width;
    }

    public static int packColumn(JTable table, int vColIndex, int margin, boolean fixed) {
        //TableModel model = table.getModel();
        DefaultTableColumnModel colModel = (DefaultTableColumnModel) table.getColumnModel();
        if (vColIndex < table.getColumnCount()) {
            TableColumn col = colModel.getColumn(vColIndex);
            if (col != null) {
                if (fixed) {
                    col.setResizable(false);
                    int width = getPreferredColumnWidth(table, vColIndex, margin);
                    if (width != col.getPreferredWidth()) {
                        //System.out.println("Setting first column width to: " + width);
                        col.setMinWidth(width);
                        col.setMaxWidth(width);
                        col.setPreferredWidth(width);
                    }
                    return width;
                } else {
                    int width = getPreferredColumnWidth(table, vColIndex, margin);
                    col.setPreferredWidth(width);
                    return width;
                }
            }
        }
        return 0;
    }

    public static int getPreferredColumnWidth(JTable table, int vColIndex, int margin) {
        int width = 0;
        if (vColIndex >= table.getColumnCount()) {
            return 0;
        }
        DefaultTableColumnModel colModel = (DefaultTableColumnModel) table.getColumnModel();
        TableColumn col = colModel.getColumn(vColIndex);

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

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

        // Add margin
        width += 2 * margin;
        return width;
    }
}

Related

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