Eclipse Plug-in Developer Guide (Galileo) - TreeViewer (Eclipse Platform API Specification)

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Eclipse Platform
Release 3.5

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org.eclipse.jface.viewers
Class TreeViewer


java.lang.Object
  

org.eclipse.jface.viewers.Viewer
      

org.eclipse.jface.viewers.ContentViewer
          

org.eclipse.jface.viewers.StructuredViewer
              

org.eclipse.jface.viewers.ColumnViewer
                  

org.eclipse.jface.viewers.AbstractTreeViewer
                      
org.eclipse.jface.viewers.TreeViewer

All Implemented Interfaces:: IInputProvider, IInputSelectionProvider, IPostSelectionProvider, ISelectionProvider

Direct Known Subclasses:: CheckboxTreeViewer, CommonViewer, DiffTreeViewer

public class TreeViewer
extends AbstractTreeViewer
extends AbstractTreeViewer

A concrete viewer based on an SWT Tree control.

This class is not intended to be subclassed outside the viewer framework. It is designed to be instantiated with a pre-existing SWT tree control and configured with a domain-specific content provider, label provider, element filter (optional), and element sorter (optional).

As of 3.2, TreeViewer supports multiple equal elements (each with a different parent chain) in the tree. This support requires that clients enable the element map by calling setUseHashLookup(true).

Content providers for tree viewers must implement either the ITreeContentProvider interface, (as of 3.2) the ILazyTreeContentProvider interface, or (as of 3.3) the ILazyTreePathContentProvider. If the content provider is an ILazyTreeContentProvider or an ILazyTreePathContentProvider, the underlying Tree must be created using the SWT.VIRTUAL style bit, the tree viewer will not support sorting or filtering, and hash lookup must be enabled by calling StructuredViewer.setUseHashlookup(boolean).

Users setting up an editable tree with more than 1 column have to pass the SWT.FULL_SELECTION style bit

Restriction:: This class is not intended to be subclassed by clients.

Nested Class Summary

Nested classes/interfaces inherited from class org.eclipse.jface.viewers. StructuredViewer

StructuredViewer.ColorAndFontCollector, StructuredViewer.ColorAndFontCollectorWithProviders

Field Summary

Fields inherited from class org.eclipse.jface.viewers. AbstractTreeViewer

ALL_LEVELS

Fields inherited from class org.eclipse.jface.viewers. Viewer

WIDGET_DATA_KEY

Constructor Summary

TreeViewer ( Composite parent)
          Creates a tree viewer on a newly-created tree control under the given parent.

TreeViewer ( Composite parent, int style)
          Creates a tree viewer on a newly-created tree control under the given parent.

TreeViewer ( Tree tree)
          Creates a tree viewer on the given tree control.

Method Summary

protected void addTreeListener ( Control c, TreeListener listener)
          Adds the given SWT tree listener to the given SWT control.

protected void assertContentProviderType ( IContentProvider provider)
          Assert that the content provider is of one of the supported types.

protected void createChildren ( Widget widget)
          Creates all children for the given widget.

protected ColumnViewerEditor createViewerEditor ()
          This implementation of AbstractTreeViewer.createViewerEditor() returns null to ensure API backwards compatibility.

protected void disassociate ( Item item)
          The AbstractTreeViewer implementation of this method also recurses over children of the corresponding element.

protected int doGetColumnCount ()
          Returns the number of columns of this viewer.

void editElement ( Object element, int column)
          Starts editing the given element at the given column index.

protected Item getChild ( Widget widget, int index)
          Get the child for the widget at index.

protected Item[] getChildren ( Widget o)
          Returns the SWT child items for the given SWT widget.

protected Widget getColumnViewerOwner (int columnIndex)
          Returns the column widget at the given column index.

Control getControl ()
          Returns the primary control associated with this viewer.

protected boolean getExpanded ( Item item)
          Returns whether the given SWT item is expanded or collapsed.

protected Item getItemAt ( Point p)
          This implementation of AbstractTreeViewer.getItemAt(Point) returns null to ensure API backwards compatibility.

protected int getItemCount ( Control widget)
          Returns the number of child items of the given SWT control.

protected int getItemCount ( Item item)
          Returns the number of child items of the given SWT item.

protected Item[] getItems ( Item item)
          Returns the child items of the given SWT item.

IBaseLabelProvider getLabelProvider ()
          The tree viewer implementation of this Viewer framework method ensures that the given label provider is an instance of either ITableLabelProvider or ILabelProvider.

protected Object getParentElement ( Object element)
          This method takes a tree path or an element.

protected Item getParentItem ( Item item)
          Returns the parent item of the given item in the tree, or null if there is no parent item.

protected Object[] getRawChildren ( Object parent)
          Returns the children of the given parent without sorting and filtering them.

protected Item[] getSelection ( Control widget)
          Returns all selected items for the given SWT control.

Tree getTree ()
          Returns this tree viewer's tree control.

protected ViewerRow getViewerRowFromItem ( Widget item)
          Returns a ViewerRow associated with the given row widget.

protected void handleTreeCollapse ( TreeEvent event)
          Handles a tree collapse event from the SWT widget.

protected void handleTreeExpand ( TreeEvent event)
          Handles a tree expand event from the SWT widget.

protected void hookControl ( Control control)
          Adds event listener hooks to the given control.

protected void internalAdd ( Widget widget, Object parentElement, Object[] childElements)
          Adds the given child elements to this viewer as children of the given parent element.

protected void internalInitializeTree ( Control widget)
          Initializes the tree with root items, expanding to the appropriate level if necessary.

protected void internalRefreshStruct ( Widget widget, Object element, boolean updateLabels)
          Update the structure and recurse.

boolean isExpandable ( Object element)
          Return whether the tree node representing the given element or path can be expanded.

protected void mapElement ( Object element, Widget item)
          Adds the element item pair to the element map.

protected Item newItem ( Widget parent, int flags, int ix)
          Creates a new item.

void remove ( Object parentOrTreePath, int index)
          Removes the element at the specified index of the parent.

protected void removeAll ( Control widget)
          Removes all items from the given control.

void replace ( Object parentElementOrTreePath, int index, Object element)
          For a TreeViewer with a tree with the VIRTUAL style bit set, replace the given parent's child at index with the given element.

void setChildCount ( Object elementOrTreePath, int count)
          For a TreeViewer with a tree with the VIRTUAL style bit set, set the number of children of the given element or tree path.

void setContentProvider ( IContentProvider provider)
          The AbstractTreeViewer implementation of this method checks to ensure that the content provider is an ITreeContentProvider.

protected void setExpanded ( Item node, boolean expand)
          Sets the expand state of the given item.

void setHasChildren ( Object elementOrTreePath, boolean hasChildren)
          For a TreeViewer with a tree with the VIRTUAL style bit set, inform the viewer about whether the given element or tree path has children.

void setSelection ( ISelection selection, boolean reveal)
          Sets a new selection for this viewer and optionally makes it visible.

protected void setSelection ( List items)
          Sets the selection to the given list of items.

protected void showItem ( Item item)
          Shows the given item.

protected void updatePlus ( Item item, Object element)
          Updates the "+"/"-" icon of the tree node from the given element.

Methods inherited from class org.eclipse.jface.viewers. AbstractTreeViewer

add, add, addSelectionListener, addTreeListener, associate, buildLabel, collapseAll, collapseToLevel, createTreeItem, doFindInputItem, doFindItem, doUpdateItem, doUpdateItem, expandAll, expandToLevel, expandToLevel, fireTreeCollapsed, fireTreeExpanded, getAutoExpandLevel, getChildren, getExpandedElements, getExpandedState, getExpandedTreePaths, getFilteredChildren, getNextItem, getPreviousItem, getSelection, getSelectionFromWidget, getSortedChildren, getTreePathFromItem, getVisibleExpandedElements, handleDoubleSelect, indexForElement, inputChanged, insert, internalCollapseToLevel, internalExpand, internalExpandToLevel, internalFindItems, internalGetWidgetToSelect, internalIsInputOrEmptyPath, internalRefresh, internalRefresh, internalRefresh, internalRemove, internalRemove, isSameSelection, labelProviderChanged, remove, remove, remove, removeTreeListener, reveal, scrollDown, scrollUp, setAutoExpandLevel, setExpandedElements, setExpandedState, setExpandedTreePaths, setSelectionToWidget, setSelectionToWidget, updateChildren

Methods inherited from class org.eclipse.jface.viewers. ColumnViewer

applyEditorValue, cancelEditing, checkBusy, getCell, getCellEditors, getCellModifier, getColumnProperties, getColumnViewerEditor, getItem, getLabelProvider, getViewerRow, hookEditingSupport, isBusy, isCellEditorActive, refresh, refresh, setBusy, setCellEditors, setCellModifier, setColumnProperties, setColumnViewerEditor, setLabelProvider, triggerEditorActivationEvent, update

Methods inherited from class org.eclipse.jface.viewers. StructuredViewer

addDoubleClickListener, addDragSupport, addDropSupport, addFilter, addOpenListener, addPostSelectionChangedListener, assertElementsNotNull, equals, filter, findItem, findItems, fireDoubleClick, fireOpen, firePostSelectionChanged, getColorAndFontCollector, getComparator, getComparer, getFilters, getRoot, getSorter, handleDispose, handleInvalidSelection, handleLabelProviderChanged, handleOpen, handlePostSelect, handleSelect, hasFilters, internalUpdate, needsRefilter, preservingSelection, refresh, refresh, refreshItem, removeDoubleClickListener, removeFilter, removeOpenListener, removePostSelectionChangedListener, resetFilters, setComparator, setComparer, setFilters, setInput, setSorter, setUseHashlookup, testFindItem, testFindItems, unmapAllElements, unmapElement, unmapElement, update, updateItem, updateSelection, usingElementMap

Methods inherited from class org.eclipse.jface.viewers. ContentViewer

getContentProvider, getInput

Methods inherited from class org.eclipse.jface.viewers. Viewer

addHelpListener, addSelectionChangedListener, fireHelpRequested, fireSelectionChanged, getData, handleHelpRequest, removeHelpListener, removeSelectionChangedListener, setData, setSelection

Methods inherited from class java.lang. Object

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

Methods inherited from interface org.eclipse.jface.viewers. ISelectionProvider

addSelectionChangedListener, removeSelectionChangedListener, setSelection

Constructor Detail

TreeViewer

public TreeViewer(
Composite parent)

Creates a tree viewer on a newly-created tree control under the given parent. The tree control is created using the SWT style bits MULTI, H_SCROLL, V_SCROLL, and BORDER. The viewer has no input, no content provider, a default label provider, no sorter, and no filters.

Parameters:: parent - the parent control

TreeViewer

public TreeViewer(
Composite parent,
                  int style)

Creates a tree viewer on a newly-created tree control under the given parent. The tree control is created using the given SWT style bits. The viewer has no input, no content provider, a default label provider, no sorter, and no filters.

Parameters:: parent - the parent control; style - the SWT style bits used to create the tree.

TreeViewer

public TreeViewer(
Tree tree)

Creates a tree viewer on the given tree control. The viewer has no input, no content provider, a default label provider, no sorter, and no filters.

Parameters:: tree - the tree control

Method Detail

addTreeListener

protected void addTreeListener(
Control c,
                               
TreeListener listener)

Description copied from class: AbstractTreeViewer

Adds the given SWT tree listener to the given SWT control.

Specified by:: addTreeListener in class AbstractTreeViewer

Parameters:: c - the SWT control; listener - the SWT tree listener

getColumnViewerOwner

protected 
Widget getColumnViewerOwner(int columnIndex)

Description copied from class: ColumnViewer

Returns the column widget at the given column index.

Overrides:: getColumnViewerOwner in class AbstractTreeViewer

Parameters:: columnIndex - the column index
Returns:: Widget the column widget

getChildren

protected 
Item[] getChildren(
Widget o)

Description copied from class: AbstractTreeViewer

Returns the SWT child items for the given SWT widget.

Specified by:: getChildren in class AbstractTreeViewer

Parameters:: o - the widget
Returns:: the child items

getControl

public 
Control getControl()

Description copied from class: Viewer

Returns the primary control associated with this viewer.

Specified by:: getControl in class Viewer

Returns:: the SWT control which displays this viewer's content

getExpanded

protected boolean getExpanded(
Item item)

Description copied from class: AbstractTreeViewer

Returns whether the given SWT item is expanded or collapsed.

Specified by:: getExpanded in class AbstractTreeViewer

Parameters:: item - the item
Returns:: true if the item is considered expanded and false if collapsed

getItemAt

protected 
Item getItemAt(
Point p)

Description copied from class: AbstractTreeViewer

This implementation of AbstractTreeViewer.getItemAt(Point) returns null to ensure API backwards compatibility. Subclasses should override.

Overrides:: getItemAt in class AbstractTreeViewer

Parameters:: p - the widget-relative coordinates
Returns:: the Item at the coordinates or null if there is no item at the given coordinates

getItemCount

protected int getItemCount(
Control widget)

Description copied from class: AbstractTreeViewer

Returns the number of child items of the given SWT control.

Specified by:: getItemCount in class AbstractTreeViewer

Parameters:: widget - the control
Returns:: the number of children

getItemCount

protected int getItemCount(
Item item)

Description copied from class: AbstractTreeViewer

Returns the number of child items of the given SWT item.

Specified by:: getItemCount in class AbstractTreeViewer

Parameters:: item - the item
Returns:: the number of children

getItems

protected 
Item[] getItems(
Item item)

Description copied from class: AbstractTreeViewer

Returns the child items of the given SWT item.

Specified by:: getItems in class AbstractTreeViewer

Parameters:: item - the item
Returns:: the child items

getLabelProvider

public 
IBaseLabelProvider getLabelProvider()

The tree viewer implementation of this Viewer framework method ensures that the given label provider is an instance of either ITableLabelProvider or ILabelProvider. If it is an ITableLabelProvider, then it provides a separate label text and image for each column. If it is an ILabelProvider, then it provides only the label text and image for the first column, and any remaining columns are blank.

Overrides:: getLabelProvider in class ContentViewer

Returns:: a label provider

getParentItem

protected 
Item getParentItem(
Item item)

Description copied from class: AbstractTreeViewer

Returns the parent item of the given item in the tree, or null if there is no parent item.

Specified by:: getParentItem in class AbstractTreeViewer

Parameters:: item - the item
Returns:: the parent item, or null if none

getSelection

protected 
Item[] getSelection(
Control widget)

Description copied from class: AbstractTreeViewer

Returns all selected items for the given SWT control.

Specified by:: getSelection in class AbstractTreeViewer

Parameters:: widget - the control
Returns:: the list of selected items

getTree

public 
Tree getTree()

Returns this tree viewer's tree control.

Returns:: the tree control

hookControl

protected void hookControl(
Control control)

Description copied from class: ContentViewer

Adds event listener hooks to the given control.

All subclasses must call this method when their control is first established.

The ContentViewer implementation of this method hooks dispose events for the given control. Subclasses may override if they need to add other control hooks; however, super.hookControl must be invoked.

Overrides:: hookControl in class AbstractTreeViewer

Parameters:: control - the control

createViewerEditor

protected 
ColumnViewerEditor createViewerEditor()

Description copied from class: AbstractTreeViewer

This implementation of AbstractTreeViewer.createViewerEditor() returns null to ensure API backwards compatibility. Subclasses should override.

Overrides:: createViewerEditor in class AbstractTreeViewer

Returns:: the editor, or null if this viewer does not support editing cell contents.

newItem

protected 
Item newItem(
Widget parent,
                       int flags,
                       int ix)

Description copied from class: AbstractTreeViewer

Creates a new item.

Specified by:: newItem in class AbstractTreeViewer

Parameters:: parent - the parent widget; flags - SWT style bits; ix - if non-negative, indicates the position to insert the item into its parent
Returns:: the newly-created item

removeAll

protected void removeAll(
Control widget)

Description copied from class: AbstractTreeViewer

Removes all items from the given control.

Specified by:: removeAll in class AbstractTreeViewer

Parameters:: widget - the control

setExpanded

protected void setExpanded(
Item node,
                           boolean expand)

Description copied from class: AbstractTreeViewer

Sets the expand state of the given item.

Specified by:: setExpanded in class AbstractTreeViewer

Parameters:: node - the item; expand - the expand state of the item

setSelection

protected void setSelection(
List items)

Description copied from class: AbstractTreeViewer

Sets the selection to the given list of items.

Specified by:: setSelection in class AbstractTreeViewer

Parameters:: items - list of items (element type: org.eclipse.swt.widgets.Item)

showItem

protected void showItem(
Item item)

Description copied from class: AbstractTreeViewer

Shows the given item.

Specified by:: showItem in class AbstractTreeViewer

Parameters:: item - the item

getChild

protected 
Item getChild(
Widget widget,
                        int index)

Description copied from class: AbstractTreeViewer

Get the child for the widget at index. Note that the default implementation is not very efficient and should be overridden if this class is implemented.

Overrides:: getChild in class AbstractTreeViewer

Parameters:: widget - the widget to check; index - the index of the widget
Returns:: Item or null if widget is not a type that can contain items.

assertContentProviderType

protected void assertContentProviderType(
IContentProvider provider)

Description copied from class: StructuredViewer

Assert that the content provider is of one of the supported types.

Overrides:: assertContentProviderType in class AbstractTreeViewer

getRawChildren

protected 
Object[] getRawChildren(
Object parent)

Description copied from class: StructuredViewer

Returns the children of the given parent without sorting and filtering them. The resulting array must not be modified, as it may come directly from the model's internal state.

Returns an empty array if the given parent is null.

Overrides:: getRawChildren in class AbstractTreeViewer

Parameters:: parent - the parent element
Returns:: the child elements

setChildCount

public void setChildCount(
Object elementOrTreePath,
                          int count)

For a TreeViewer with a tree with the VIRTUAL style bit set, set the number of children of the given element or tree path. To set the number of children of the invisible root of the tree, you can pass the input object or an empty tree path.

Parameters:: elementOrTreePath - the element, or tree path; count -
Since:: 3.2

replace

public void replace(
Object parentElementOrTreePath,
                    int index,
                    
Object element)

For a TreeViewer with a tree with the VIRTUAL style bit set, replace the given parent's child at index with the given element. If the given parent is this viewer's input or an empty tree path, this will replace the root element at the given index.

This method should be called by implementers of ILazyTreeContentProvider to populate this viewer.

Parameters:: parentElementOrTreePath - the parent of the element that should be updated, or the tree path to that parent; index - the index in the parent's children; element - the new element
Since:: 3.2
See Also:: setChildCount(Object, int), ILazyTreeContentProvider, ILazyTreePathContentProvider

isExpandable

public boolean isExpandable(
Object element)

Description copied from class: AbstractTreeViewer

Return whether the tree node representing the given element or path can be expanded. Clients should query expandability by path if the viewer's content provider is an ITreePathContentProvider.

The default implementation of this framework method calls hasChildren on this viewer's content provider. It may be overridden if necessary.

Overrides:: isExpandable in class AbstractTreeViewer

Parameters:: element - the element or path
Returns:: true if the tree node representing the given element can be expanded, or false if not

getParentElement

protected 
Object getParentElement(
Object element)

Description copied from class: AbstractTreeViewer

This method takes a tree path or an element. If the argument is not a tree path, returns the parent of the given element or null if the parent is not known. If the argument is a tree path with more than one segment, returns its parent tree path, otherwise returns null.

Overrides:: getParentElement in class AbstractTreeViewer

Returns:: the parent element, or parent path, or null

createChildren

protected void createChildren(
Widget widget)

Description copied from class: AbstractTreeViewer

Creates all children for the given widget.

The default implementation of this framework method assumes that widget.getData() returns the element corresponding to the node. Note: the node is not visually expanded! You may have to call parent.setExpanded(true).

Overrides:: createChildren in class AbstractTreeViewer

Parameters:: widget - the widget

internalAdd

protected void internalAdd(
Widget widget,
                           
Object parentElement,
                           
Object[] childElements)

Description copied from class: AbstractTreeViewer

Adds the given child elements to this viewer as children of the given parent element.

EXPERIMENTAL. Not to be used except by JDT. This method was added to support JDT's explorations into grouping by working sets, which requires viewers to support multiple equal elements. See bug 76482 for more details. This support will likely be removed in Eclipse 3.2 in favor of proper support for multiple equal elements.

Overrides:: internalAdd in class AbstractTreeViewer

Parameters:: widget - the widget for the parent element; parentElement - the parent element; childElements - the child elements to add

internalRefreshStruct

protected void internalRefreshStruct(
Widget widget,
                                     
Object element,
                                     boolean updateLabels)

Description copied from class: AbstractTreeViewer

Update the structure and recurse. Items are updated in updateChildren, as needed.

mapElement

protected void mapElement(
Object element,
                          
Widget item)

Description copied from class: StructuredViewer

Adds the element item pair to the element map.

This method is internal to the framework; subclassers should not call this method.

Overrides:: mapElement in class StructuredViewer

Parameters:: element - the element; item - the corresponding widget

getViewerRowFromItem

protected 
ViewerRow getViewerRowFromItem(
Widget item)

Description copied from class: ColumnViewer

Returns a ViewerRow associated with the given row widget. Implementations may re-use the same instance for different row widgets; callers can only use the viewer row locally and until the next call to this method.

Overrides:: getViewerRowFromItem in class AbstractTreeViewer

Parameters:: item - the row widget
Returns:: ViewerRow a viewer row object

internalInitializeTree

protected void internalInitializeTree(
Control widget)

Description copied from class: AbstractTreeViewer

Initializes the tree with root items, expanding to the appropriate level if necessary.

Overrides:: internalInitializeTree in class AbstractTreeViewer

Parameters:: widget - the tree control

updatePlus

protected void updatePlus(
Item item,
                          
Object element)

Description copied from class: AbstractTreeViewer

Updates the "+"/"-" icon of the tree node from the given element. It calls isExpandable to determine whether an element is expandable.

Overrides:: updatePlus in class AbstractTreeViewer

Parameters:: item - the item; element - the element

remove

public void remove(
Object parentOrTreePath,
                   int index)

Removes the element at the specified index of the parent. The selection is updated if required.

Parameters:: parentOrTreePath - the parent element, the input element, or a tree path to the parent element; index - child index
Since:: 3.3

handleTreeExpand

protected void handleTreeExpand(
TreeEvent event)

Description copied from class: AbstractTreeViewer

Handles a tree expand event from the SWT widget.

Overrides:: handleTreeExpand in class AbstractTreeViewer

Parameters:: event - the SWT tree event

handleTreeCollapse

protected void handleTreeCollapse(
TreeEvent event)

Description copied from class: AbstractTreeViewer

Handles a tree collapse event from the SWT widget.

Overrides:: handleTreeCollapse in class AbstractTreeViewer

Parameters:: event - the SWT tree event

setContentProvider

public void setContentProvider(
IContentProvider provider)

Description copied from class: AbstractTreeViewer

The AbstractTreeViewer implementation of this method checks to ensure that the content provider is an ITreeContentProvider.

Overrides:: setContentProvider in class AbstractTreeViewer

Parameters:: provider - the content provider
See Also:: ContentViewer.getContentProvider()

setHasChildren

public void setHasChildren(
Object elementOrTreePath,
                           boolean hasChildren)

For a TreeViewer with a tree with the VIRTUAL style bit set, inform the viewer about whether the given element or tree path has children. Avoid calling this method if the number of children has already been set.

Parameters:: elementOrTreePath - the element, or tree path; hasChildren -
Since:: 3.3

disassociate

protected void disassociate(
Item item)

Description copied from class: AbstractTreeViewer

The AbstractTreeViewer implementation of this method also recurses over children of the corresponding element.

Overrides:: disassociate in class AbstractTreeViewer

Parameters:: item - the widget

doGetColumnCount

protected int doGetColumnCount()

Description copied from class: AbstractTreeViewer

Returns the number of columns of this viewer.

Subclasses should overwrite this method, which has a default implementation (returning 0) for API backwards compatility reasons

Overrides:: doGetColumnCount in class AbstractTreeViewer

Returns:: the number of columns

setSelection

public void setSelection(
ISelection selection,
                         boolean reveal)

Sets a new selection for this viewer and optionally makes it visible.

Currently the reveal parameter is not honored because Tree does not provide an API to only select an item without scrolling it into view

Overrides:: setSelection in class StructuredViewer

Parameters:: selection - the new selection; reveal - true if the selection is to be made visible, and false otherwise

editElement

public void editElement(
Object element,
                        int column)

Description copied from class: ColumnViewer

Starts editing the given element at the given column index.

Overrides:: editElement in class ColumnViewer

Parameters:: element - the model element; column - the column index

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Guidelines for using Eclipse APIs.

org.eclipse.jface.viewers Class TreeViewer

TreeViewer

TreeViewer

TreeViewer

addTreeListener

getColumnViewerOwner

getChildren

getControl

getExpanded

getItemAt

getItemCount

getItemCount

getItems

getLabelProvider

getParentItem

getSelection

getTree

hookControl

createViewerEditor

newItem

removeAll

setExpanded

setSelection

showItem

getChild

assertContentProviderType

getRawChildren

setChildCount

replace

isExpandable

getParentElement

createChildren

internalAdd

internalRefreshStruct

mapElement

getViewerRowFromItem

internalInitializeTree

updatePlus

remove

handleTreeExpand

handleTreeCollapse

setContentProvider

setHasChildren

disassociate

doGetColumnCount

setSelection

editElement

org.eclipse.jface.viewers
Class TreeViewer