weka.gui

Class JTableHelper

java.lang.Object

weka.gui.JTableHelper

public class JTableHelper
extends Object

A helper class for JTable, e.g. calculating the optimal colwidth.

Version:

$Revision: 8034 $

Author:

FracPete (fracpete at waikato dot ac dot nz)

Constructor Summary

Constructors

Constructor and Description
JTableHelper(JTable jtable) initializes the object

Method Summary

Methods

Modifier and Type	Method and Description
int	calcColumnWidth(int col) calcs the optimal column width of the given column
static int	calcColumnWidth(JTable table, int col) Calculates the optimal width for the column of the given table.
int	calcHeaderWidth(int col) calcs the optimal header width of the given column
static int	calcHeaderWidth(JTable table, int col) Calculates the optimal width for the header of the given table.
JTable	getJTable() returns the JTable
void	scrollToVisible(int row, int col) Assumes table is contained in a JScrollPane.
static void	scrollToVisible(JTable table, int row, int col) Assumes table is contained in a JScrollPane.
void	setOptimalColumnWidth() sets the optimal column width for all columns
void	setOptimalColumnWidth(int col) sets the optimal column width for the given column
static void	setOptimalColumnWidth(JTable jtable) sets the optimal column width for alls column if the given table
static void	setOptimalColumnWidth(JTable jtable, int col) sets the optimal column width for the given column
void	setOptimalHeaderWidth() sets the optimal header width for all columns
void	setOptimalHeaderWidth(int col) sets the optimal header width for the given column
static void	setOptimalHeaderWidth(JTable jtable) sets the optimal header width for alls column if the given table
static void	setOptimalHeaderWidth(JTable jtable, int col) sets the optimal header width for the given column

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

JTableHelper

public JTableHelper(JTable jtable)

initializes the object

Method Detail

getJTable

public JTable getJTable()

returns the JTable

calcColumnWidth

public int calcColumnWidth(int col)

calcs the optimal column width of the given column

calcColumnWidth

public static int calcColumnWidth(JTable table,
                  int col)

Calculates the optimal width for the column of the given table. The calculation is based on the preferred width of the header and cell renderer.
Taken from the newsgoup de.comp.lang.java with some modifications.
Taken from FOPPS/EnhancedTable - http://fopps.sourceforge.net/

Parameters:

table - the table to calculate the column width

col - the column to calculate the widths

Returns:

the width, -1 if error

calcHeaderWidth

public int calcHeaderWidth(int col)

calcs the optimal header width of the given column

calcHeaderWidth

public static int calcHeaderWidth(JTable table,
                  int col)

Calculates the optimal width for the header of the given table. The calculation is based on the preferred width of the header renderer.

Parameters:

table - the table to calculate the column width

col - the column to calculate the widths

Returns:

the width, -1 if error

setOptimalColumnWidth

public void setOptimalColumnWidth(int col)

sets the optimal column width for the given column

setOptimalColumnWidth

public static void setOptimalColumnWidth(JTable jtable,
                         int col)

sets the optimal column width for the given column

setOptimalColumnWidth

public void setOptimalColumnWidth()

sets the optimal column width for all columns

setOptimalColumnWidth

public static void setOptimalColumnWidth(JTable jtable)

sets the optimal column width for alls column if the given table

setOptimalHeaderWidth

public void setOptimalHeaderWidth(int col)

sets the optimal header width for the given column

setOptimalHeaderWidth

public static void setOptimalHeaderWidth(JTable jtable,
                         int col)

sets the optimal header width for the given column

setOptimalHeaderWidth

public void setOptimalHeaderWidth()

sets the optimal header width for all columns

setOptimalHeaderWidth

public static void setOptimalHeaderWidth(JTable jtable)

sets the optimal header width for alls column if the given table

scrollToVisible

public void scrollToVisible(int row,
                   int col)

Assumes table is contained in a JScrollPane. Scrolls the cell (rowIndex, vColIndex) so that it is visible within the viewport.

scrollToVisible

public static void scrollToVisible(JTable table,
                   int row,
                   int col)

Assumes table is contained in a JScrollPane. Scrolls the cell (rowIndex, vColIndex) so that it is visible within the viewport.