org.eclipse.nebula.widgets.nattable.tree

Class TreeLayer

java.lang.Object

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

org.eclipse.nebula.widgets.nattable.layer.AbstractLayerTransform

org.eclipse.nebula.widgets.nattable.hideshow.AbstractRowHideShowLayer

org.eclipse.nebula.widgets.nattable.tree.TreeLayer

All Implemented Interfaces:

ILayer, ILayerListener, IUniqueIndexLayer, IPersistable

public class TreeLayer
extends AbstractRowHideShowLayer

Field Summary

Fields

Modifier and Type	Field and Description
static String	TREE_COLUMN_CELL
static int	TREE_COLUMN_NUMBER

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

underlyingLayer

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

layerPainter

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

DOT, VALUE_SEPARATOR

Constructor Summary

Constructors

Constructor and Description
TreeLayer(IUniqueIndexLayer underlyingLayer, ITreeRowModel<?> treeRowModel) Creates a TreeLayer instance based on the given information.
TreeLayer(IUniqueIndexLayer underlyingLayer, ITreeRowModel<?> treeRowModel, boolean useDefaultConfiguration) Creates a TreeLayer instance based on the given information.
TreeLayer(IUniqueIndexLayer underlyingLayer, ITreeRowModel<?> treeRowModel, IndentedTreeImagePainter indentedTreeImagePainter) Creates a TreeLayer instance based on the given information.
TreeLayer(IUniqueIndexLayer underlyingLayer, ITreeRowModel<?> treeRowModel, IndentedTreeImagePainter indentedTreeImagePainter, boolean useDefaultConfiguration) Creates a TreeLayer instance based on the given information.

Method Summary

Methods

Modifier and Type	Method and Description
void	collapseTreeRow(int parentIndex) Collapses the tree node for the given row index.
boolean	doCommand(ILayerCommand command) Opportunity to respond to a command as it flows down the stack.
void	expandOrCollapseIndex(int parentIndex) Performs an expand/collapse action dependent on the current state of the tree node at the given row index.
void	expandTreeRow(int parentIndex) Expands the tree node for the given row index.
ICellPainter	getCellPainter(int columnPosition, int rowPosition, ILayerCell cell, IConfigRegistry configRegistry)
Collection<Integer>	getHiddenRowIndexes() Will collect and return all indexes of the rows that are hidden in this layer.
IndentedTreeImagePainter	getIndentedTreeImagePainter()
ITreeRowModel<?>	getModel()
ICellPainter	getTreeImagePainter()
protected boolean	handleMultiRowHideCommand(MultiRowHideCommand command) Checks if the given command tries to hide rows that are nodes that are not collapsed and have children.
protected boolean	handleRowHideCommand(RowHideCommand command) Checks if the given command tries to hide a row that is a node that is not collapsed and has children.
boolean	isRowIndexHidden(int rowIndex) Will check if the row at the specified index is hidden or not.

Methods inherited from class org.eclipse.nebula.widgets.nattable.hideshow.AbstractRowHideShowLayer

cacheVisibleRowIndexes, getColumnPositionByIndex, getHeight, getRowCount, getRowIndexByPosition, getRowPositionByIndex, getRowPositionByY, getRowPositionsByIndexes, getStartYOfRowPosition, handleLayerEvent, invalidateCache, localToUnderlyingRowPosition, underlyingToLocalRowPosition, underlyingToLocalRowPositions

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

configure, dispose, getCellByPosition, getColumnCount, getColumnIndexByPosition, getColumnPositionByX, getColumnWidthByPosition, getConfigLabelsByPosition, getDataValueByPosition, getDisplayModeByPosition, getLayerPainter, getPreferredColumnCount, getPreferredHeight, getPreferredRowCount, getPreferredWidth, getRegionLabelsByXY, getRowHeightByPosition, getStartXOfColumnPosition, getUnderlyingLayer, getUnderlyingLayerByPosition, getUnderlyingLayersByColumnPosition, getUnderlyingLayersByRowPosition, getWidth, isColumnPositionResizable, isRowPositionResizable, loadState, localToUnderlyingColumnPosition, saveState, setClientAreaProvider, setUnderlyingLayer, underlyingToLocalColumnPosition, underlyingToLocalColumnPositions

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

addConfiguration, addLayerListener, clearConfiguration, fireLayerEvent, getBoundsByPosition, getClientAreaProvider, getConfigLabelAccumulator, getRegionName, hasLayerListener, registerCommandHandler, registerCommandHandlers, registerEventHandler, registerPersistable, removeLayerListener, setConfigLabelAccumulator, setLayerPainter, setRegionName, toString, unregisterCommandHandler, 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, configure, dispose, fireLayerEvent, getBoundsByPosition, getCellByPosition, getClientAreaProvider, getColumnCount, getColumnIndexByPosition, getColumnPositionByX, getColumnWidthByPosition, getConfigLabelsByPosition, getDataValueByPosition, getDisplayModeByPosition, getLayerPainter, getPreferredColumnCount, getPreferredHeight, getPreferredRowCount, getPreferredWidth, getRegionLabelsByXY, getRowHeightByPosition, getStartXOfColumnPosition, getUnderlyingLayerByPosition, getUnderlyingLayersByColumnPosition, getUnderlyingLayersByRowPosition, getWidth, hasLayerListener, isColumnPositionResizable, isRowPositionResizable, localToUnderlyingColumnPosition, registerCommandHandler, registerPersistable, removeLayerListener, setClientAreaProvider, underlyingToLocalColumnPosition, underlyingToLocalColumnPositions, unregisterCommandHandler, unregisterPersistable

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

loadState, saveState

Field Detail

TREE_COLUMN_CELL

public static final String TREE_COLUMN_CELL

See Also:

Constant Field Values

TREE_COLUMN_NUMBER

public static final int TREE_COLUMN_NUMBER

See Also:

Constant Field Values

Constructor Detail

TreeLayer

public TreeLayer(IUniqueIndexLayer underlyingLayer,
         ITreeRowModel<?> treeRowModel)

Creates a TreeLayer instance based on the given information. Will use a default IndentedTreeImagePainter that uses 10 pixels for indentation and simple + and - icons for expand/collapse icons. It also uses the DefaultTreeLayerConfiguration.

Parameters:

underlyingLayer - The underlying layer on whose top this layer will be set.

treeRowModel - The ITreeRowModelListener that is used to get information about the tree structure.

TreeLayer

public TreeLayer(IUniqueIndexLayer underlyingLayer,
         ITreeRowModel<?> treeRowModel,
         IndentedTreeImagePainter indentedTreeImagePainter)

Creates a TreeLayer instance based on the given information. Allows to specify the IndentedTreeImagePainter while using the DefaultTreeLayerConfiguration.

Parameters:

underlyingLayer - The underlying layer on whose top this layer will be set.

treeRowModel - The ITreeRowModelListener that is used to get information about the tree structure.

indentedTreeImagePainter - The IndentedTreeImagePainter that paints indentation to the left of the configured base painter and icons for expand/collapse if possible, to render tree structure accordingly.

TreeLayer

public TreeLayer(IUniqueIndexLayer underlyingLayer,
         ITreeRowModel<?> treeRowModel,
         boolean useDefaultConfiguration)

Creates a TreeLayer instance based on the given information. Will use a default IndentedTreeImagePainter that uses 10 pixels for indentation and simple + and - icons for expand/collapse icons.

Parameters:

underlyingLayer - The underlying layer on whose top this layer will be set.

treeRowModel - The ITreeRowModelListener that is used to get information about the tree structure.

useDefaultConfiguration - true to use the DefaultTreeLayerConfiguration, false if you want to specify your own configuration.

TreeLayer

public TreeLayer(IUniqueIndexLayer underlyingLayer,
         ITreeRowModel<?> treeRowModel,
         IndentedTreeImagePainter indentedTreeImagePainter,
         boolean useDefaultConfiguration)

Creates a TreeLayer instance based on the given information.

Parameters:

underlyingLayer - The underlying layer on whose top this layer will be set.

treeRowModel - The ITreeRowModelListener that is used to get information about the tree structure.

indentedTreeImagePainter - The IndentedTreeImagePainter that paints indentation to the left of the configured base painter and icons for expand/collapse if possible, to render tree structure accordingly.

useDefaultConfiguration - true to use the DefaultTreeLayerConfiguration, false if you want to specify your own configuration.

Method Detail

getModel

public ITreeRowModel<?> getModel()

Returns:

The ITreeRowModelListener that is used to get information about the tree structure.

getIndentedTreeImagePainter

public IndentedTreeImagePainter getIndentedTreeImagePainter()

Returns:

The IndentedTreeImagePainter that paints indentation to the left of the configured base painter and icons for expand/collapse if possible, to render tree structure accordingly.

getTreeImagePainter

public ICellPainter getTreeImagePainter()

Returns:

The ICellPainter that is used to paint the images in the tree by the IndentedTreeImagePainter. Usually it is some type of TreeImagePainter that paints expand/collapse/leaf icons regarding the node state.
Can be null if set explicitly to the IndentedTreeImagePainter!

getCellPainter

public ICellPainter getCellPainter(int columnPosition,
                          int rowPosition,
                          ILayerCell cell,
                          IConfigRegistry configRegistry)

Specified by:

getCellPainter in interface ILayer

Overrides:

getCellPainter in class AbstractLayerTransform

isRowIndexHidden

public boolean isRowIndexHidden(int rowIndex)

Description copied from class: AbstractRowHideShowLayer

Will check if the row at the specified index is hidden or not. Checks this layer and also the sublayers for the visibility.

Specified by:

isRowIndexHidden in class AbstractRowHideShowLayer

Parameters:

rowIndex - The row index of the row whose visibility state should be checked.

Returns:

true if the row at the specified index is hidden, false if it is visible.

getHiddenRowIndexes

public Collection<Integer> getHiddenRowIndexes()

Description copied from class: AbstractRowHideShowLayer

Will collect and return all indexes of the rows that are hidden in this layer. Note: It is not intended that it also collects the row indexes of underlying layers. This would cause issues on calculating positions as every layer is responsible for those calculations itself.

Specified by:

getHiddenRowIndexes in class AbstractRowHideShowLayer

Returns:

Collection of all row indexes that are hidden in this layer.

expandOrCollapseIndex

public void expandOrCollapseIndex(int parentIndex)

Performs an expand/collapse action dependent on the current state of the tree node at the given row index.

Parameters:

parentIndex - The index of the row that shows the tree node for which the expand/collapse action should be performed.

collapseTreeRow

public void collapseTreeRow(int parentIndex)

Collapses the tree node for the given row index.

Parameters:

parentIndex - The index of the row that shows the node that should be collapsed

expandTreeRow

public void expandTreeRow(int parentIndex)

Expands the tree node for the given row index.

Parameters:

parentIndex - The index of the row that shows the node that should be expanded

doCommand

public boolean doCommand(ILayerCommand command)

Description copied from interface: ILayer

Opportunity to respond to a command as it flows down the stack. If the layer is not interested in the command it should allow the command to keep traveling down the stack. Note: Before the layer can process a command it must convert the command to its local co-ordinates using ILayerCommand.convertToTargetLayer(ILayer)

Specified by:

doCommand in interface ILayer

Overrides:

doCommand in class AbstractLayerTransform

Parameters:

command - the command to perform

Returns:

true if the command has been handled, false otherwise

handleRowHideCommand

protected boolean handleRowHideCommand(RowHideCommand command)

Checks if the given command tries to hide a row that is a node that is not collapsed and has children. In that case also the child rows need to be hidden.

Parameters:

command - The RowHideCommand to process

Returns:

true if the command has been handled, false otherwise

handleMultiRowHideCommand

protected boolean handleMultiRowHideCommand(MultiRowHideCommand command)

Checks if the given command tries to hide rows that are nodes that are not collapsed and have children. In that case also the child rows need to be hidden.

Parameters:

command - The MultiRowHideCommand to process

Returns:

true if the command has been handled, false otherwise