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Class com.sun.java.swing.table.JTableHeader

java.lang.Object
   |
   +----java.awt.Component
           |
           +----java.awt.Container
                   |
                   +----com.sun.java.swing.JComponent
                           |
                           +----com.sun.java.swing.table.JTableHeader

public class JTableHeader

extends JComponent

implements TableColumnModelListener, Accessible

See Also:

JTable

columnModel

The TableColumnModel of the table header

draggedColumn

The index of the column being dragged.

draggedDistance

The distance from its original position the column has been dragged

reorderingAllowed

Reordering of columns are allowed by the user

resizingAllowed

Resizing of columns are allowed by the user

resizingColumn

The index of the column being resized.

table

updateTableInRealTime

If this flag is true, then the header will repaint the table as a column is dragged or resized.

JTableHeader()

Constructs a JTableHeader with a default TableColumnModel

JTableHeader(TableColumnModel)

Constructs a JTableHeader which is initialized with cm as the column model.

columnAdded(TableColumnModelEvent)

columnAtPoint(Point)

Returns the index of the column that point lies in, or -1 if it lies outside the receiver's bounds.

columnMarginChanged(ChangeEvent)

columnMoved(TableColumnModelEvent)

columnRemoved(TableColumnModelEvent)

columnSelectionChanged(ListSelectionEvent)

createDefaultColumnModel()

Returns the default column model object which is a DefaultTableColumnModel.

getAccessibleRole()

Get the role of this object.

getColumnModel()

Returns the TableColumnModel that contains all column inforamtion of this table header.

getDraggedColumn()

Returns the index of the dragged column, if and only if a drag is in process.

getDraggedDistance()

Returns the column's horizontal distance from its original position, if and only if a drag is in process.

getReorderingAllowed()

Returns true if the receiver allows the user to rearrange columns by dragging their headers, false otherwise.

getResizingAllowed()

Returns true if the receiver allows the user to resize columns by dragging between their headers, false otherwise.

getResizingColumn()

Returns the index of the resizing column.

getTable()

Returns the header's partner table

getToolTipText(MouseEvent)

Overriding to allow renderer's tips to be used if it has text set.

getUI()

getUIClassID()

getUpdateTableInRealTime()

Returns true if the receiver updates the body of the table view in real time when a column is resized or dragged.

initializeLocalVars()

resizeAndRepaint()

Properly sizes the receiver and its header view, and marks it as needing display.

setColumnModel(TableColumnModel)

Sets the column model for this table to newModel and registers with for listner notifications from the new column model.

setDraggedColumn(int)

Sets the header's draggedColumn to columnIndex

setDraggedDistance(int)

Sets the header's draggedDistance to distance

setReorderingAllowed(boolean)

Sets whether the user can drag column headers to reorder columns.

setResizingAllowed(boolean)

Sets whether the user can resize columns by dragging between headers.

setResizingColumn(int)

Sets the header's resizingColumn to columnIndex

setTable(JTable)

Sets the header's partner table to aTable

setUI(TableHeaderUI)

setUpdateTableInRealTime(boolean)

Sets whether the body of the table updates in real time when a column is resized or dragged.

updateUI()

Notification from the UIFactory that the L&F has changed.

 protected JTable table

 protected TableColumnModel columnModel

The TableColumnModel of the table header

 protected boolean reorderingAllowed

Reordering of columns are allowed by the user

 protected boolean resizingAllowed

Resizing of columns are allowed by the user

 protected boolean updateTableInRealTime

If this flag is true, then the header will repaint the table as a column is dragged or resized.

 protected transient int resizingColumn

The index of the column being resized. 0 if not resizing

 protected transient int draggedColumn

The index of the column being dragged. 0 if not dragging

 protected transient int draggedDistance

The distance from its original position the column has been dragged

 public JTableHeader()

Constructs a JTableHeader with a default TableColumnModel

See Also:

createDefaultColumnModel

 public JTableHeader(TableColumnModel cm)

Constructs a JTableHeader which is initialized with cm as the column model. If cm is null this method will initialize the table header with a default TableColumnModel.

Parameters:

cm - The column model for the table

See Also:

createDefaultColumnModel

 public void setTable(JTable aTable)

Sets the header's partner table to aTable

 public JTable getTable()

Returns the header's partner table

 public void setReorderingAllowed(boolean b)

Sets whether the user can drag column headers to reorder columns.

Parameters:

flag - true if the table view should allow reordering

See Also:

getReorderingAllowed

 public boolean getReorderingAllowed()

Returns true if the receiver allows the user to rearrange columns by dragging their headers, false otherwise. The default is true. You can rearrange columns programmatically regardless of this setting.

Returns:

true if the receiver allows the user to rearrange columns by dragging their headers, false otherwise

See Also:

setReorderingAllowed

 public void setResizingAllowed(boolean b)

Sets whether the user can resize columns by dragging between headers.

Parameters:

flag - true if table view should allow resizing

See Also:

getResizingAllowed

 public boolean getResizingAllowed()

Returns true if the receiver allows the user to resize columns by dragging between their headers, false otherwise. The default is true. You can resize columns programmatically regardless of this setting.

Returns:

true if the receiver allows the user to resize columns by dragging between their headers, false otherwise.

See Also:

setResizingAllowed

 public int getDraggedColumn()

Returns the index of the dragged column, if and only if a drag is in process.

Returns:

the index of the dragged column, if and only if a drag is in process, otherwise returns -1

See Also:

getDraggedDistance

 public int getDraggedDistance()

Returns the column's horizontal distance from its original position, if and only if a drag is in process. Otherwise, the the return value is meaningless.

Returns:

the column's horizontal distance from its original position, if and only if a drag is in process

See Also:

getDraggedColumn

 public int getResizingColumn()

Returns the index of the resizing column. If no column is being resized this method returns -1.

Returns:

the index of the resizing column

 public void setUpdateTableInRealTime(boolean flag)

Sets whether the body of the table updates in real time when a column is resized or dragged.

Parameters:

flag - true if tableView should update the body of the table in real time

See Also:

getUpdateTableInRealTime

 public boolean getUpdateTableInRealTime()

Returns true if the receiver updates the body of the table view in real time when a column is resized or dragged. User can set this flag to false to speed up the table's response to user resize or drag actions. The default is true.

Returns:

true if the table updates in real time

See Also:

setUpdateTableInRealTime

 public int columnAtPoint(Point point)

Returns the index of the column that point lies in, or -1 if it lies outside the receiver's bounds.

Returns:

the index of the column that point lies in, or -1 if it lies outside the receiver's bounds

 public String getToolTipText(MouseEvent event)

Overriding to allow renderer's tips to be used if it has text set.

Overrides:

getToolTipText in class JComponent

 public TableHeaderUI getUI()

 public void setUI(TableHeaderUI ui)

 public void updateUI()

Notification from the UIFactory that the L&F has changed.

Overrides:

updateUI in class JComponent

 public String getUIClassID()

Returns:

"TableHeaderUI"

Overrides:

getUIClassID in class JComponent

See Also:

getUIClassID, getUI

 public void setColumnModel(TableColumnModel newModel)

Sets the column model for this table to newModel and registers with for listner notifications from the new column model.

Parameters:

newModel - the new data source for this table

Throws: IllegalArgumentException

if newModel is null

See Also:

getColumnModel

 public TableColumnModel getColumnModel()

Returns the TableColumnModel that contains all column inforamtion of this table header.

Returns:

the object that provides the column state of the table

See Also:

setColumnModel

 public void columnAdded(TableColumnModelEvent e)

 public void columnRemoved(TableColumnModelEvent e)

 public void columnMoved(TableColumnModelEvent e)

 public void columnMarginChanged(ChangeEvent e)

 public void columnSelectionChanged(ListSelectionEvent e)

 protected TableColumnModel createDefaultColumnModel()

Returns the default column model object which is a DefaultTableColumnModel. Subclass can override this method to return a different column model object

Returns:

the default column model object

 protected void initializeLocalVars()

 public void resizeAndRepaint()

Properly sizes the receiver and its header view, and marks it as needing display. Also resets cursor rectangles for the header view and line scroll amounts for the JScrollPane.

 public void setDraggedColumn(int columnIndex)

Sets the header's draggedColumn to columnIndex

 public void setDraggedDistance(int distance)

Sets the header's draggedDistance to distance

 public void setResizingColumn(int columnIndex)

Sets the header's resizingColumn to columnIndex

 public AccessibleRole getAccessibleRole()

Get the role of this object.

Returns:

an instance of AccessibleRole describing the role of the object

Overrides:

getAccessibleRole in class JComponent

See Also:

AccessibleRole

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