gr.zeus.ui.table
Class AutoResizeTableColumns

java.lang.Object
  extended by gr.zeus.ui.table.AutoResizeTableColumns
All Implemented Interfaces:
java.util.EventListener, javax.swing.event.TableModelListener

public final class AutoResizeTableColumns
extends java.lang.Object
implements javax.swing.event.TableModelListener

NOTE: This class needs a lot of testing in order to check all possible use cases! Please use setDebugMode(true) and reports any bugs or malfunctions to gregkotsaftis@yahoo.com

This class can be used to dynamically resize a JTable, every time it's data changes, based on header size and row data. It can also lock any or all of the table's columns (no manual resize possible). Please note that this class respects hidden columns (columns with all sizes set to zero) and excludes them from the resize. Also take into consideration that if performance is a must, you should avoid adding and removing single rows in the table's model, to avoid multiple tableChanged() events leading to multiple executions of this class. Instead you should store your data in Vectors and pass them on to the table's model in a single step. Finally, you can use the method setDebugMode(true) in order to understand how this class functions and the results of your own application; note that if you enable debuging, the performance will degrade by a major degree!

Since:
1.50
Author:
Gregory Kotsaftis

Field Summary
static int DEFAULT_COLUMN_PADDING
           
 
Constructor Summary
AutoResizeTableColumns(javax.swing.JTable tbl)
          Constructor.
AutoResizeTableColumns(javax.swing.JTable tbl, boolean allColumnsLock)
          Constructor.
AutoResizeTableColumns(javax.swing.JTable tbl, javax.swing.table.TableModel mdl, int columnPadding, boolean includeHeaders, boolean includeRows, boolean[] lockColumns)
          Constructor.
 
Method Summary
 void setDebugMode(boolean debugMode)
          Sets debug mode.
 void tableChanged(javax.swing.event.TableModelEvent tableModelEvent)
          Implementation of TableModelListener.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

DEFAULT_COLUMN_PADDING

public static final int DEFAULT_COLUMN_PADDING
See Also:
Constant Field Values
Constructor Detail

AutoResizeTableColumns

public AutoResizeTableColumns(javax.swing.JTable tbl)
Constructor. Uses default values (includes headers and rows calculations, does not lock columns and column padding is set to 5 pixels).

Parameters:
tbl - The table instance.

AutoResizeTableColumns

public AutoResizeTableColumns(javax.swing.JTable tbl,
                              boolean allColumnsLock)
Constructor. Uses default values (includes headers and rows calculations, column padding is set to 5 pixels).

Parameters:
tbl - The table instance.
allColumnsLock - true/false to lock/unlock all columns

AutoResizeTableColumns

public AutoResizeTableColumns(javax.swing.JTable tbl,
                              javax.swing.table.TableModel mdl,
                              int columnPadding,
                              boolean includeHeaders,
                              boolean includeRows,
                              boolean[] lockColumns)
Constructor.

Parameters:
tbl - The table instance.
mdl - The table model.
columnPadding - The pixels to use for column padding.
includeHeaders - true/false to include headers in calculation.
includeRows - true/false to include rows in calculation.
lockColumns - An array that contains the lock status of each individual column.
Method Detail

setDebugMode

public void setDebugMode(boolean debugMode)
Sets debug mode. WARNING! Enabling this will slow down your application!

Parameters:
debugMode - true/false enable or disable the debug output.

tableChanged

public void tableChanged(javax.swing.event.TableModelEvent tableModelEvent)
Implementation of TableModelListener.

Specified by:
tableChanged in interface javax.swing.event.TableModelListener
Parameters:
tableModelEvent - The event.