Java Utililty Methods JTable Column Size Calculate

List of utility methods to do JTable Column Size Calculate

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Description

The list of methods to do JTable Column Size Calculate are organized into topic(s).

Method

intcalculateColumnWidth_1(JTable table, int pos)
calculate Column Widt_ 
for (int ii = 0; ii < table.getColumnModel().getColumnCount(); ii++) {
    TableColumn col = table.getColumnModel().getColumn(ii);
    if (ii == pos) {
        return col.getHeaderValue().toString().getBytes().length * 10;
throw new RuntimeException("error!!");
voidfixedColumSize(TableColumn c, int width)
fixed Colum Size 
c.setMinWidth(width);
c.setMaxWidth(width);
voidfixSize(TableColumn column, JTable table)
Fix the size of a column according to the header text. 
TableCellRenderer rndr;
rndr = column.getHeaderRenderer();
if (rndr == null) {
    rndr = table.getTableHeader().getDefaultRenderer();
Component c = rndr.getTableCellRendererComponent(table, column.getHeaderValue(), false, false, -1,
        column.getModelIndex());
int width = c.getPreferredSize().width + 10;
...
voidinitColumnSizes(JTable table)
init Column Sizes 
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;
...
intinitColumnSizes(JTable table, boolean[] show)
init Column Sizes 
TableColumn column = null;
Component comp = null;
int cellWidth = 0;
TableModel model = table.getModel();
int numCols = model.getColumnCount();
int numRows = model.getRowCount();
if (show != null && show.length != numCols)
    show = null;
...
voidinitColumnSizes(JTable table, int rowStart, int rowEnd)
Sets the width of the table columns to fit in the table data. 
boolean containsData = table.getRowCount() > 0;
Component cellRendererComponent;
int headerWidth;
int cellWidth;
TableCellRenderer headerRenderer = table.getTableHeader().getDefaultRenderer();
for (int columnIndex = 0; columnIndex < table.getColumnCount(); columnIndex++) {
    TableColumn column = table.getColumnModel().getColumn(columnIndex);
    cellRendererComponent = headerRenderer.getTableCellRendererComponent(table, column.getHeaderValue(),
...
voidinitializeTableColumns(JTable table, int size[])
initialize Table Columns 
TableCellRenderer dcr = table.getDefaultRenderer(Integer.class);
if (dcr instanceof JLabel) {
    ((JLabel) dcr).setHorizontalAlignment(SwingConstants.CENTER);
table.setDefaultRenderer(Integer.class, dcr);
JTableHeader header = table.getTableHeader();
if (header != null) {
    TableCellRenderer headerRenderer = header.getDefaultRenderer();
...
booleanpointOutsidePrefSize(JTable table, int row, int column, Point p)
point Outside Pref Size 
if ((table.convertColumnIndexToModel(column) != 0) || (row == -1)) {
    return true;
TableCellRenderer tcr = table.getCellRenderer(row, column);
Object value = table.getValueAt(row, column);
Component cell = tcr.getTableCellRendererComponent(table, value, false, false, row, column);
Dimension itemSize = cell.getPreferredSize();
Rectangle cellBounds = table.getCellRect(row, column, false);
...
voidsetSize(JTable table, int columnIndex, int newSize)
set Size 
TableColumn column = table.getColumnModel().getColumn(columnIndex);
setSize(table, column, newSize);