net.sf.jeppers.grid
Class DefaultSpanModel

java.lang.Object
  |
  +--net.sf.jeppers.grid.AbstractSpanModel
        |
        +--net.sf.jeppers.grid.DefaultSpanModel

All Implemented Interfaces:

ResizableGrid, SpanModel

public class DefaultSpanModel

extends AbstractSpanModel

implements ResizableGrid

Default implementation of SpanModel. The implementation uses HashSet to store the cell spans. Therefore getSpanOver(int, int) has O(N) performance where N is the number of spans. isCellSpan(int, int) has O(1) performance and is used by JGrid to avoid using getSpanOver(int, int) when possible.

Author:

Cameron Zemek

Field Summary

Fields inherited from class net.sf.jeppers.grid.AbstractSpanModel

listenerList

Constructor Summary

DefaultSpanModel()

Method Summary

void	addSpan(CellSpan span)
Iterator	getSpanIterator() Return set of spans where (rowCount > 1 || columnCount > 1)
CellSpan	getSpanOver(int row, int column) Return the span over the cell at row, column.
void	insertColumns(int column, int columnCount) Insert columnCount columns at column.
void	insertRows(int row, int rowCount) Insert rowCount rows at row.
boolean	isCellSpan(int row, int column) Return true if the cell is part of a span with (rowCount > 1 || columnCount > 1)
void	removeColumns(int column, int columnCount) Remove columnCount columns at column.
void	removeRows(int row, int rowCount) Remove rowCount rows at row.
void	removeSpan(CellSpan span)

Methods inherited from class net.sf.jeppers.grid.AbstractSpanModel

addSpanModelListener, fireCellSpanAdded, fireCellSpanRemoved, fireCellSpanUpdated, fireSpanChanged, getListeners, removeSpanModelListener

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultSpanModel

public DefaultSpanModel()

Method Detail

getSpanOver

public CellSpan getSpanOver(int row,
                            int column)

Description copied from interface: SpanModel

Return the span over the cell at row, column.

Specified by:

getSpanOver in interface SpanModel

isCellSpan

public boolean isCellSpan(int row,
                          int column)

Description copied from interface: SpanModel

Return true if the cell is part of a span with (rowCount > 1 || columnCount > 1)

Specified by:

isCellSpan in interface SpanModel

getSpanIterator

public Iterator getSpanIterator()

Description copied from interface: SpanModel

Return set of spans where (rowCount > 1 || columnCount > 1)

Specified by:

getSpanIterator in interface SpanModel

addSpan

public void addSpan(CellSpan span)

removeSpan

public void removeSpan(CellSpan span)

insertRows

public void insertRows(int row,
                       int rowCount)

Description copied from interface: ResizableGrid

Insert rowCount rows at row.

Specified by:

insertRows in interface ResizableGrid

Parameters:

row - the row to insert at

rowCount - the number of rows to insert

removeRows

public void removeRows(int row,
                       int rowCount)

Description copied from interface: ResizableGrid

Remove rowCount rows at row.

Specified by:

removeRows in interface ResizableGrid

Parameters:

row - the row to remove from

rowCount - the number of rows to remove

insertColumns

public void insertColumns(int column,
                          int columnCount)

Description copied from interface: ResizableGrid

Insert columnCount columns at column.

Specified by:

insertColumns in interface ResizableGrid

Parameters:

column - the column to insert at

columnCount - the number of columns to insert

removeColumns

public void removeColumns(int column,
                          int columnCount)

Description copied from interface: ResizableGrid

Remove columnCount columns at column.

Specified by:

removeColumns in interface ResizableGrid

Parameters:

column - the column to remove from

columnCount - the number of columns to remove