Package org.eclipse.nebula.widgets.nattable.hideshow

Class ResizeColumnHideShowLayer

java.lang.Object

org.eclipse.nebula.widgets.nattable.layer.AbstractLayer

org.eclipse.nebula.widgets.nattable.layer.AbstractIndexLayerTransform

org.eclipse.nebula.widgets.nattable.hideshow.ResizeColumnHideShowLayer

All Implemented Interfaces:

IColumnHideShowLayer, ILayer, ILayerListener, IUniqueIndexLayer, IPersistable

public class ResizeColumnHideShowLayer
extends AbstractIndexLayerTransform
implements IColumnHideShowLayer

Layer to add support for column hide/show feature to a NatTable. Technically hides columns by setting the column width to 0. This way percentage sized columns increase correctly to take the remaining space. This approach is different from the classical ColumnHideShowLayer where the column is really hidden in the layer which leads to index-position-transformation instead of basic column resizing.

Note: It is suggested to set DataLayer.setDistributeRemainingColumnSpace(boolean) to true when using this layer, or set DataLayer.setFixColumnPercentageValuesOnResize(boolean) to false. Otherwise a column resize triggers the percentage value calculation of dynamic sized columns, which then leads to gaps as the fixed percentage sized columns to not grow by default.

Since:

1.6

See Also:

• ColumnHideShowLayer

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static class	ResizeColumnHideShowLayer.ColumnSizeInfo

Field Summary

Fields

Modifier and Type	Field	Description
protected org.eclipse.collections.api.map.primitive.MutableIntObjectMap<ResizeColumnHideShowLayer.ColumnSizeInfo>	hiddenColumns	Map that contains the columns hidden by this layer with the initial width so it can be shown again with the previous width.
static final String	PERSISTENCE_KEY_HIDDEN_COLUMNS

Fields inherited from class org.eclipse.nebula.widgets.nattable.layer.AbstractLayer

commandHandlers, eventHandlers, eventHelperLock, layerPainter

Fields inherited from interface org.eclipse.nebula.widgets.nattable.persistence.IPersistable

DOT, VALUE_SEPARATOR

Constructor Summary

Constructors

Constructor	Description
ResizeColumnHideShowLayer(IUniqueIndexLayer underlyingLayer, DataLayer bodyDataLayer)

Method Summary

Modifier and Type	Method	Description
LabelStack	getConfigLabelsByPosition(int columnPosition, int rowPosition)	Returns the config labels for the cell at the given coordinates.
Collection<Integer>	getHiddenColumnIndexes()	Returns all indexes of the columns that are hidden in this layer.
int[]	getHiddenColumnIndexesArray()	Will collect and return all indexes of the columns that are hidden in this layer.
Collection<String>	getProvidedLabels()
void	hideColumnIndexes(int... columnIndexes)	Hide the columns with the given indexes.
void	hideColumnIndexes(Collection<Integer> columnIndexes)	Hide the columns with the given indexes.
void	hideColumnPositions(int... columnPositions)	Hide the columns at the specified positions.
void	hideColumnPositions(Collection<Integer> columnPositions)	Hide the columns at the specified positions.
void	loadState(String prefix, Properties properties)	Underlying layers must load state first.
void	saveState(String prefix, Properties properties)	Saves the state to the given Properties using the specified prefix.
void	showAllColumns()	Show all hidden columns again.
void	showColumnIndexes(int... columnIndexes)	Show the columns with the given indexes again if they are hidden by this layer.
void	showColumnIndexes(Collection<Integer> columnIndexes)	Show the columns with the given indexes again if they are hidden by this layer.
void	showColumnPosition(int columnPosition, boolean showToLeft, boolean showAll)	Show the column(s) that are hidden next to the given column position.

Methods inherited from class org.eclipse.nebula.widgets.nattable.layer.AbstractIndexLayerTransform

configure, dispose, doCommand, getCellByPosition, getCellPainter, getColumnCount, getColumnIndexByPosition, getColumnPositionByIndex, getColumnPositionByX, getColumnWidthByPosition, getDataValueByPosition, getDisplayModeByPosition, getHeight, getLayerPainter, getPreferredColumnCount, getPreferredHeight, getPreferredRowCount, getPreferredWidth, getRegionLabelsByXY, getRowCount, getRowHeightByPosition, getRowIndexByPosition, getRowPositionByIndex, getRowPositionByY, getStartXOfColumnPosition, getStartYOfRowPosition, getUnderlyingLayer, getUnderlyingLayerByPosition, getUnderlyingLayersByColumnPosition, getUnderlyingLayersByRowPosition, getWidth, isColumnPositionResizable, isDynamicSizeLayer, isRowPositionResizable, localToUnderlyingColumnPosition, localToUnderlyingRowPosition, setClientAreaProvider, setUnderlyingLayer, underlyingToLocalColumnPosition, underlyingToLocalColumnPositions, underlyingToLocalRowPosition, underlyingToLocalRowPositions

Methods inherited from class org.eclipse.nebula.widgets.nattable.layer.AbstractLayer

addConfiguration, addLayerListener, clearConfiguration, fireLayerEvent, getBoundsByPosition, getClientAreaProvider, getConfigLabelAccumulator, getRegionName, handleLayerEvent, hasLayerListener, registerCommandHandler, registerCommandHandlers, registerEventHandler, registerPersistable, removeLayerListener, setConfigLabelAccumulator, setLayerPainter, setRegionName, toString, unregisterCommandHandler, unregisterEventHandler, unregisterPersistable

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.nebula.widgets.nattable.layer.ILayer

addLayerListener, fireLayerEvent, getBoundsByPosition, getClientAreaProvider, hasLayerListener, registerCommandHandler, registerPersistable, removeLayerListener, unregisterCommandHandler, unregisterPersistable

Methods inherited from interface org.eclipse.nebula.widgets.nattable.layer.ILayerListener

handleLayerEvent

Field Details

PERSISTENCE_KEY_HIDDEN_COLUMNS

public static final String PERSISTENCE_KEY_HIDDEN_COLUMNS

See Also:

• Constant Field Values

hiddenColumns

protected org.eclipse.collections.api.map.primitive.MutableIntObjectMap<ResizeColumnHideShowLayer.ColumnSizeInfo> hiddenColumns

Map that contains the columns hidden by this layer with the initial width so it can be shown again with the previous width.

Constructor Details

ResizeColumnHideShowLayer

public ResizeColumnHideShowLayer(IUniqueIndexLayer underlyingLayer,
 DataLayer bodyDataLayer)

Parameters:

underlyingLayer - The underlying layer.

bodyDataLayer - The DataLayer of the body region needed to retrieve the configured column width.

Method Details

saveState

public void saveState(String prefix,
 Properties properties)

Description copied from interface: IPersistable

Saves the state to the given Properties using the specified prefix. Note: The prefix must be prepended to the property key to support multiple states within one Properties instance.

Specified by:

saveState in interface IPersistable

Overrides:

saveState in class AbstractIndexLayerTransform

Parameters:

prefix - The prefix to use for the state keys. Is also used as the state configuration name.

properties - The Properties instance to save the state to.

loadState

public void loadState(String prefix,
 Properties properties)

Description copied from class: AbstractIndexLayerTransform

Underlying layers must load state first. If this is not done, IStructuralChangeEvent from underlying layers will reset caches after state has been loaded

Specified by:

loadState in interface IPersistable

Overrides:

loadState in class AbstractIndexLayerTransform

Parameters:

prefix - The prefix to use for the state keys. Is also used as the state configuration name.

properties - The Properties instance to load the state from.

getConfigLabelsByPosition

public LabelStack getConfigLabelsByPosition(int columnPosition,
 int rowPosition)

Description copied from interface: ILayer

Returns the config labels for the cell at the given coordinates. Needed to retrieve the corresponding configurations out of the IConfigRegistry.

Specified by:

getConfigLabelsByPosition in interface ILayer

Overrides:

getConfigLabelsByPosition in class AbstractIndexLayerTransform

Parameters:

columnPosition - The column position of the cell.

rowPosition - The row position of the cell.

Returns:

The LabelStack with the config labels for the cell at the given coordinates.

getHiddenColumnIndexes

public Collection<Integer> getHiddenColumnIndexes()

Description copied from interface: IColumnHideShowLayer

Returns all indexes of the columns that are hidden in this layer.

Note: It does not include the column indexes of hidden columns from underlying layers. This would cause issues on calculating positions as every layer is responsible for those calculations itself.

Specified by:

getHiddenColumnIndexes in interface IColumnHideShowLayer

Returns:

The indexes of the columns that are hidden in this layer.

getHiddenColumnIndexesArray

public int[] getHiddenColumnIndexesArray()

Description copied from interface: IColumnHideShowLayer

Will collect and return all indexes of the columns that are hidden in this layer.

Note: It is not intended that it also collects the column indexes of underlying layers. This would cause issues on calculating positions, as every layer is responsible for those calculations itself.

Specified by:

getHiddenColumnIndexesArray in interface IColumnHideShowLayer

Returns:

All column indexes that are hidden in this layer.

hideColumnPositions

public void hideColumnPositions(int... columnPositions)

Description copied from interface: IColumnHideShowLayer

Hide the columns at the specified positions. Note that the positions are required as this method might get called via user interaction in a transformed table (e.g. reordered).

Specified by:

hideColumnPositions in interface IColumnHideShowLayer

Parameters:

columnPositions - The column positions to hide.

hideColumnPositions

public void hideColumnPositions(Collection<Integer> columnPositions)

Description copied from interface: IColumnHideShowLayer

Hide the columns at the specified positions. Note that the positions are required as this method might get called via user interaction in a transformed table (e.g. reordered).

Specified by:

hideColumnPositions in interface IColumnHideShowLayer

Parameters:

columnPositions - The column positions to hide.

hideColumnIndexes

public void hideColumnIndexes(int... columnIndexes)

Description copied from interface: IColumnHideShowLayer

Hide the columns with the given indexes.

Specified by:

hideColumnIndexes in interface IColumnHideShowLayer

Parameters:

columnIndexes - The indexes of the columns to hide.

hideColumnIndexes

public void hideColumnIndexes(Collection<Integer> columnIndexes)

Description copied from interface: IColumnHideShowLayer

Hide the columns with the given indexes.

Specified by:

hideColumnIndexes in interface IColumnHideShowLayer

Parameters:

columnIndexes - The indexes of the columns to hide.

showColumnIndexes

public void showColumnIndexes(int... columnIndexes)

Description copied from interface: IColumnHideShowLayer

Show the columns with the given indexes again if they are hidden by this layer. Note that the indexes are needed and not the positions. This is because a user is not able to select the hidden column in the NatTable and therefore the position is not available anymore.

Specified by:

showColumnIndexes in interface IColumnHideShowLayer

Parameters:

columnIndexes - The column indexes to show again.

showColumnIndexes

public void showColumnIndexes(Collection<Integer> columnIndexes)

Description copied from interface: IColumnHideShowLayer

Show the columns with the given indexes again if they are hidden by this layer. Note that the indexes are needed and not the positions. This is because a user is not able to select the hidden column in the NatTable and therefore the position is not available anymore.

Specified by:

showColumnIndexes in interface IColumnHideShowLayer

Parameters:

columnIndexes - The column indexes to show again.

showColumnPosition

public void showColumnPosition(int columnPosition,
 boolean showToLeft,
 boolean showAll)

Description copied from interface: IColumnHideShowLayer

Show the column(s) that are hidden next to the given column position.

Specified by:

showColumnPosition in interface IColumnHideShowLayer

Parameters:

columnPosition - The column position whose neighbors should be shown again.

showToLeft - Whether the column positions to the left or the right of the given column position should be shown again.

showAll - Whether all hidden adjacent columns should be shown again or only the single direct adjacent column.

showAllColumns

public void showAllColumns()

Description copied from interface: IColumnHideShowLayer

Show all hidden columns again.

Specified by:

showAllColumns in interface IColumnHideShowLayer

getProvidedLabels

public Collection<String> getProvidedLabels()

Specified by:

getProvidedLabels in interface ILayer

Overrides:

getProvidedLabels in class AbstractLayer

Returns:

The collection of labels that are provided by this layer.