Package org.eclipse.jface.viewers

Class ComboBoxViewerCellEditor

java.lang.Object

org.eclipse.jface.viewers.CellEditor

org.eclipse.jface.viewers.ComboBoxViewerCellEditor

public class ComboBoxViewerCellEditor
extends CellEditor

A cell editor that presents a list of items in a combo box. In contrast to ComboBoxCellEditor it wraps the underlying CCombo using a ComboViewer

Since:

3.4

Nested Class Summary

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

CellEditor.LayoutData

Field Summary

Fields

Modifier and Type	Field	Description
static final int	DROP_DOWN_ON_KEY_ACTIVATION	The list is dropped down when the activation is done through the keyboard
static final int	DROP_DOWN_ON_MOUSE_ACTIVATION	The list is dropped down when the activation is done through the mouse
static final int	DROP_DOWN_ON_PROGRAMMATIC_ACTIVATION	The list is dropped down when the activation is done without ui-interaction
static final int	DROP_DOWN_ON_TRAVERSE_ACTIVATION	The list is dropped down when the activation is done by traversing from cell to cell

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

COPY, CUT, DELETE, FIND, PASTE, REDO, SELECT_ALL, UNDO

Constructor Summary

Constructors

Constructor	Description
ComboBoxViewerCellEditor(Composite parent)	Creates a new cell editor with a combo viewer and a default style
ComboBoxViewerCellEditor(Composite parent, int style)	Creates a new cell editor with a combo viewer and the given style

Method Summary

Modifier and Type	Method	Description
void	activate(ColumnViewerEditorActivationEvent activationEvent)	Activate the editor but also inform the editor which event triggered its activation.
protected Control	createControl(Composite parent)	Creates the control for this cell editor under the given parent control.
protected Object	doGetValue()	The ComboBoxCellEditor implementation of this CellEditor framework method returns the zero-based index of the current selection.
protected void	doSetFocus()	Sets the focus to the cell editor's control.
protected void	doSetValue(Object value)	Set a new value
protected void	focusLost()	Processes a focus lost event that occurred in this cell editor.
CellEditor.LayoutData	getLayoutData()	The ComboBoxCellEditor implementation of this CellEditor framework method sets the minimum width of the cell.
ComboViewer	getViewer()
protected void	keyReleaseOccured(KeyEvent keyEvent)	Processes a key release event that occurred in this cell editor.
void	setActivationStyle(int activationStyle)	This method allows to control how the combo reacts when activated
void	setContenProvider(IStructuredContentProvider provider)	Deprecated. As of 3.7, replaced by setContentProvider(IStructuredContentProvider)
void	setContentProvider(IStructuredContentProvider provider)
void	setInput(Object input)
void	setLabelProvider(IBaseLabelProvider labelProvider)

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

activate, addListener, addPropertyChangeListener, create, deactivate, deactivate, dependsOnExternalFocusListener, dispose, fireApplyEditorValue, fireCancelEditor, fireEditorValueChanged, fireEnablementChanged, getControl, getDoubleClickTimeout, getErrorMessage, getStyle, getValidator, getValue, isActivated, isCopyEnabled, isCorrect, isCutEnabled, isDeleteEnabled, isDirty, isFindEnabled, isPasteEnabled, isRedoEnabled, isSelectAllEnabled, isUndoEnabled, isValueValid, markDirty, performCopy, performCut, performDelete, performFind, performPaste, performRedo, performSelectAll, performUndo, removeListener, removePropertyChangeListener, setErrorMessage, setFocus, setStyle, setValidator, setValue, setValueValid, valueChanged

Methods inherited from class java.lang.Object

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

Field Details

DROP_DOWN_ON_MOUSE_ACTIVATION

public static final int DROP_DOWN_ON_MOUSE_ACTIVATION

The list is dropped down when the activation is done through the mouse

See Also:

• Constant Field Values

DROP_DOWN_ON_KEY_ACTIVATION

public static final int DROP_DOWN_ON_KEY_ACTIVATION

The list is dropped down when the activation is done through the keyboard

See Also:

• Constant Field Values

DROP_DOWN_ON_PROGRAMMATIC_ACTIVATION

public static final int DROP_DOWN_ON_PROGRAMMATIC_ACTIVATION

The list is dropped down when the activation is done without ui-interaction

See Also:

• Constant Field Values

DROP_DOWN_ON_TRAVERSE_ACTIVATION

public static final int DROP_DOWN_ON_TRAVERSE_ACTIVATION

The list is dropped down when the activation is done by traversing from cell to cell

See Also:

• Constant Field Values

Constructor Details

ComboBoxViewerCellEditor

public ComboBoxViewerCellEditor(Composite parent)

Creates a new cell editor with a combo viewer and a default style

Parameters:

parent - the parent control

ComboBoxViewerCellEditor

public ComboBoxViewerCellEditor(Composite parent,
 int style)

Creates a new cell editor with a combo viewer and the given style

Parameters:

parent - the parent control

style - the style bits

Method Details

createControl

protected Control createControl(Composite parent)

Description copied from class: CellEditor

Creates the control for this cell editor under the given parent control.

This framework method must be implemented by concrete subclasses.

Specified by:

createControl in class CellEditor

Parameters:

parent - the parent control

Returns:

the new control, or null if this cell editor has no control

doGetValue

protected Object doGetValue()

The ComboBoxCellEditor implementation of this CellEditor framework method returns the zero-based index of the current selection.

Specified by:

doGetValue in class CellEditor

Returns:

the zero-based index of the current selection wrapped as an Integer

See Also:

• CellEditor.getValue()

doSetFocus

protected void doSetFocus()

Description copied from class: CellEditor

Sets the focus to the cell editor's control.

This framework method must be implemented by concrete subclasses.

Specified by:

doSetFocus in class CellEditor

See Also:

• CellEditor.setFocus()

getLayoutData

public CellEditor.LayoutData getLayoutData()

The ComboBoxCellEditor implementation of this CellEditor framework method sets the minimum width of the cell. The minimum width is 10 characters if comboBox is not null or disposed eles it is 60 pixels to make sure the arrow button and some text is visible. The list of CCombo will be wide enough to show its longest item.

Overrides:

getLayoutData in class CellEditor

Returns:

the layout data object

doSetValue

protected void doSetValue(Object value)

Set a new value

Specified by:

doSetValue in class CellEditor

Parameters:

value - the new value

See Also:

• CellEditor.setValue(java.lang.Object)

setLabelProvider

public void setLabelProvider(IBaseLabelProvider labelProvider)

Parameters:

labelProvider - the label provider used

See Also:

• StructuredViewer.setLabelProvider(IBaseLabelProvider)

setContentProvider

public void setContentProvider(IStructuredContentProvider provider)

Parameters:

provider - the content provider used

Since:

3.7

See Also:

• StructuredViewer.setContentProvider(IContentProvider)

setContenProvider

@Deprecated
public void setContenProvider(IStructuredContentProvider provider)

Deprecated.

As of 3.7, replaced by setContentProvider(IStructuredContentProvider)

Parameters:

provider - the content provider used

See Also:

• StructuredViewer.setContentProvider(IContentProvider)

setInput

public void setInput(Object input)

Parameters:

input - the input used

See Also:

• StructuredViewer.setInput(Object)

getViewer

public ComboViewer getViewer()

Returns:

get the viewer

focusLost

protected void focusLost()

Description copied from class: CellEditor

Processes a focus lost event that occurred in this cell editor.

The default implementation of this framework method applies the current value and deactivates the cell editor. Subclasses should call this method at appropriate times. Subclasses may also extend or reimplement.

Overrides:

focusLost in class CellEditor

keyReleaseOccured

protected void keyReleaseOccured(KeyEvent keyEvent)

Description copied from class: CellEditor

Processes a key release event that occurred in this cell editor.

The default implementation of this framework method cancels editing when the ESC key is pressed. When the RETURN key is pressed the current value is applied and the cell editor deactivates. Subclasses should call this method at appropriate times. Subclasses may also extend or reimplement.

Overrides:

keyReleaseOccured in class CellEditor

Parameters:

keyEvent - the key event

activate

public void activate(ColumnViewerEditorActivationEvent activationEvent)

Description copied from class: CellEditor

Activate the editor but also inform the editor which event triggered its activation. The default implementation simply calls CellEditor.activate()

Overrides:

activate in class CellEditor

Parameters:

activationEvent - the editor activation event

setActivationStyle

public void setActivationStyle(int activationStyle)

This method allows to control how the combo reacts when activated

Parameters:

activationStyle - the style used