Exemple #1
0
  // This method from http://www.exampledepot.com/egs/javax.swing.table/PackCol.html
  public int packColumn(JTable table, int vColIndex, int margin) {
    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();
    }
    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);

    return width;
  }
  /**
   * This method gets the width of a cell, specified by a column and row number.
   *
   * @param row The column number.
   * @param column The row number.
   * @return The width of the cell data.
   */
  private int getCellDataWidth(int row, int column) {
    //  Inovke the renderer for the cell to calculate the preferred width

    TableCellRenderer cellRenderer = table.getCellRenderer(row, column);
    Component c = table.prepareRenderer(cellRenderer, row, column);
    int width = c.getPreferredSize().width + table.getIntercellSpacing().width;

    return width;
  }