Package io.github.jonestimd.swing.table

Class ColumnResizeHandler

java.lang.Object

io.github.jonestimd.swing.table.ColumnResizeHandler

All Implemented Interfaces:

SettingsPersister

public class ColumnResizeHandler
extends java.lang.Object
implements SettingsPersister

Provides improved column resizing and handles save/restore of column sizes and ordering.

Column Sizing

if ColumnConfiguration.getWidth(TableColumn) returns a non-null value then the column is initialized to that width. Otherwise, the width is initialized to the value returned by ColumnWidthCalculator.preferredWidth(TableColumn).

If ColumnWidthCalculator.isFixedWidth(TableColumn) returns true then the column's min, max and preferred widths are all initialized to the same value so that the column's size will not change when other columns are resized by the user. This class provides special handling for resizing a column with only fixed width columns to the right. In that case, the right most column will adjust to compensate for the changing column's new size. This class does not prevent the user from explicitly changing the size of a column, including fixed width columns.

If ColumnWidthCalculator.isFixedWidth(TableColumn) returns false for a column then only the preferred width is initialized using the saved width or the calculated preferred width.

Saved Settings

This class delegates to ColumnConfiguration for saving/loading the column widths and ordering.

See Also:

ColumnConfiguration, ColumnWidthCalculator

Constructor Summary

Constructors

Constructor	Description
ColumnResizeHandler(javax.swing.JTable table, ColumnConfiguration configuration, ColumnWidthCalculator widthCalculator)

Method Summary

Modifier and Type	Method	Description
void	saveSettings()

Methods inherited from class java.lang.Object

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

Constructor Detail

ColumnResizeHandler

public ColumnResizeHandler(javax.swing.JTable table,
                           ColumnConfiguration configuration,
                           ColumnWidthCalculator widthCalculator)

Method Detail

saveSettings

public void saveSettings()

Specified by:

saveSettings in interface SettingsPersister