Class List
- All Implemented Interfaces:
Drawable
- Styles:
- SINGLE, MULTI
- Events:
- Selection, DefaultSelection
Note: Only one of SINGLE and MULTI may be specified.
IMPORTANT: This class is not intended to be subclassed.
- See Also:
- Restriction:
- This class is not intended to be subclassed by clients.
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Field Summary
Fields inherited from class org.eclipse.swt.widgets.Widget
nativeZoom
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Constructor Summary
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Method Summary
Modifier and TypeMethodDescriptionvoid
Adds the argument to the end of the receiver's list.void
Adds the argument to the receiver's list at the given zero-relative index.void
addSelectionListener
(SelectionListener listener) Adds the listener to the collection of listeners who will be notified when the user changes the receiver's selection, by sending it one of the messages defined in theSelectionListener
interface.void
deselect
(int index) Deselects the item at the given zero-relative index in the receiver.void
deselect
(int[] indices) Deselects the items at the given zero-relative indices in the receiver.void
deselect
(int start, int end) Deselects the items at the given zero-relative indices in the receiver.void
Deselects all selected items in the receiver.int
Returns the zero-relative index of the item which currently has the focus in the receiver, or -1 if no item has focus.getItem
(int index) Returns the item at the given, zero-relative index in the receiver.int
Returns the number of items contained in the receiver.int
Returns the height of the area which would be used to display one of the items in the list.String[]
getItems()
Returns a (possibly empty) array ofString
s which are the items in the receiver.String[]
Returns an array ofString
s that are currently selected in the receiver.int
Returns the number of selected items contained in the receiver.int
Returns the zero-relative index of the item which is currently selected in the receiver, or -1 if no item is selected.int[]
Returns the zero-relative indices of the items which are currently selected in the receiver.int
Returns the zero-relative index of the item which is currently at the top of the receiver.int
Gets the index of an item.int
Searches the receiver's list starting at the given, zero-relative index until an item is found that is equal to the argument, and returns the index of that item.boolean
isSelected
(int index) Returnstrue
if the item is selected, andfalse
otherwise.void
remove
(int index) Removes the item from the receiver at the given zero-relative index.void
remove
(int[] indices) Removes the items from the receiver at the given zero-relative indices.void
remove
(int start, int end) Removes the items from the receiver which are between the given zero-relative start and end indices (inclusive).void
Searches the receiver's list starting at the first item until an item is found that is equal to the argument, and removes that item from the list.void
Removes all of the items from the receiver.void
removeSelectionListener
(SelectionListener listener) Removes the listener from the collection of listeners who will be notified when the user changes the receiver's selection.void
select
(int index) Selects the item at the given zero-relative index in the receiver's list.void
select
(int[] indices) Selects the items at the given zero-relative indices in the receiver.void
select
(int start, int end) Selects the items in the range specified by the given zero-relative indices in the receiver.void
Selects all of the items in the receiver.void
Sets the font that the receiver will use to paint textual information to the font specified by the argument, or to the default font for that kind of control if the argument is null.void
Sets the text of the item in the receiver's list at the given zero-relative index to the string argument.void
Sets the receiver's items to be the given array of items.void
setSelection
(int index) Selects the item at the given zero-relative index in the receiver.void
setSelection
(int[] indices) Selects the items at the given zero-relative indices in the receiver.void
setSelection
(int start, int end) Selects the items in the range specified by the given zero-relative indices in the receiver.void
setSelection
(String[] items) Sets the receiver's selection to be the given array of items.void
setTopIndex
(int index) Sets the zero-relative index of the item which is currently at the top of the receiver.void
Shows the selection.Methods inherited from class org.eclipse.swt.widgets.Scrollable
computeTrim, getClientArea, getHorizontalBar, getScrollbarsMode, getVerticalBar, setScrollbarsMode
Methods inherited from class org.eclipse.swt.widgets.Control
addControlListener, addDragDetectListener, addFocusListener, addGestureListener, addHelpListener, addKeyListener, addMenuDetectListener, addMouseListener, addMouseMoveListener, addMouseTrackListener, addMouseWheelListener, addPaintListener, addTouchListener, addTraverseListener, computeSize, computeSize, dragDetect, dragDetect, forceFocus, getAccessible, getBackground, getBackgroundImage, getBorderWidth, getBounds, getCursor, getDragDetect, getEnabled, getFont, getForeground, getLayoutData, getLocation, getMenu, getMonitor, getOrientation, getParent, getRegion, getShell, getSize, getTextDirection, getToolTipText, getTouchEnabled, getVisible, internal_dispose_GC, internal_new_GC, isEnabled, isFocusControl, isReparentable, isVisible, moveAbove, moveBelow, pack, pack, print, redraw, redraw, removeControlListener, removeDragDetectListener, removeFocusListener, removeGestureListener, removeHelpListener, removeKeyListener, removeMenuDetectListener, removeMouseListener, removeMouseMoveListener, removeMouseTrackListener, removeMouseWheelListener, removePaintListener, removeTouchListener, removeTraverseListener, requestLayout, setBackground, setBackgroundImage, setBounds, setBounds, setCapture, setCursor, setDragDetect, setEnabled, setFocus, setForeground, setLayoutData, setLocation, setLocation, setMenu, setOrientation, setParent, setRedraw, setRegion, setSize, setSize, setTextDirection, setToolTipText, setTouchEnabled, setVisible, toControl, toControl, toDisplay, toDisplay, traverse, traverse, traverse, update
Methods inherited from class org.eclipse.swt.widgets.Widget
addDisposeListener, addListener, addTypedListener, checkSubclass, checkWidget, dispose, getData, getData, getDisplay, getListeners, getStyle, getTypedListeners, isAutoDirection, isDisposed, isListening, notifyListeners, removeDisposeListener, removeListener, removeListener, removeTypedListener, reskin, setData, setData, toString
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
Methods inherited from interface org.eclipse.swt.graphics.Drawable
isAutoScalable
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Constructor Details
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List
Constructs a new instance of this class given its parent and a style value describing its behavior and appearance.The style value is either one of the style constants defined in class
SWT
which is applicable to instances of this class, or must be built by bitwise OR'ing together (that is, using theint
"|" operator) two or more of thoseSWT
style constants. The class description lists the style constants that are applicable to the class. Style bits are also inherited from superclasses.- Parameters:
parent
- a composite control which will be the parent of the new instance (cannot be null)style
- the style of control to construct- Throws:
IllegalArgumentException
-- ERROR_NULL_ARGUMENT - if the parent is null
SWTException
-- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent
- ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass
- See Also:
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Method Details
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add
Adds the argument to the end of the receiver's list.Note: If control characters like '\n', '\t' etc. are used in the string, then the behavior is platform dependent.
- Parameters:
string
- the new item- Throws:
IllegalArgumentException
-- ERROR_NULL_ARGUMENT - if the string is null
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
- See Also:
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add
Adds the argument to the receiver's list at the given zero-relative index.Note: To add an item at the end of the list, use the result of calling
getItemCount()
as the index or useadd(String)
.Also note, if control characters like '\n', '\t' etc. are used in the string, then the behavior is platform dependent.
- Parameters:
string
- the new itemindex
- the index for the item- Throws:
IllegalArgumentException
-- ERROR_NULL_ARGUMENT - if the string is null
- ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list (inclusive)
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
- See Also:
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addSelectionListener
Adds the listener to the collection of listeners who will be notified when the user changes the receiver's selection, by sending it one of the messages defined in theSelectionListener
interface.widgetSelected
is called when the selection changes.widgetDefaultSelected
is typically called when an item is double-clicked.- Parameters:
listener
- the listener which should be notified when the user changes the receiver's selection- Throws:
IllegalArgumentException
-- ERROR_NULL_ARGUMENT - if the listener is null
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
- See Also:
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deselect
public void deselect(int[] indices) Deselects the items at the given zero-relative indices in the receiver. If the item at the given zero-relative index in the receiver is selected, it is deselected. If the item at the index was not selected, it remains deselected. Indices that are out of range and duplicate indices are ignored.- Parameters:
indices
- the array of indices for the items to deselect- Throws:
IllegalArgumentException
-- ERROR_NULL_ARGUMENT - if the set of indices is null
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
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deselect
public void deselect(int index) Deselects the item at the given zero-relative index in the receiver. If the item at the index was already deselected, it remains deselected. Indices that are out of range are ignored.- Parameters:
index
- the index of the item to deselect- Throws:
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
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deselect
public void deselect(int start, int end) Deselects the items at the given zero-relative indices in the receiver. If the item at the given zero-relative index in the receiver is selected, it is deselected. If the item at the index was not selected, it remains deselected. The range of the indices is inclusive. Indices that are out of range are ignored.- Parameters:
start
- the start index of the items to deselectend
- the end index of the items to deselect- Throws:
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
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deselectAll
public void deselectAll()Deselects all selected items in the receiver.- Throws:
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
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getFocusIndex
public int getFocusIndex()Returns the zero-relative index of the item which currently has the focus in the receiver, or -1 if no item has focus.- Returns:
- the index of the selected item
- Throws:
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
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getItem
Returns the item at the given, zero-relative index in the receiver. Throws an exception if the index is out of range.- Parameters:
index
- the index of the item to return- Returns:
- the item at the given index
- Throws:
IllegalArgumentException
-- ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
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getItemCount
public int getItemCount()Returns the number of items contained in the receiver.- Returns:
- the number of items
- Throws:
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
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getItemHeight
public int getItemHeight()Returns the height of the area which would be used to display one of the items in the list.- Returns:
- the height of one item
- Throws:
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
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getItems
Returns a (possibly empty) array ofString
s which are the items in the receiver.Note: This is not the actual structure used by the receiver to maintain its list of items, so modifying the array will not affect the receiver.
- Returns:
- the items in the receiver's list
- Throws:
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
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getSelection
Returns an array ofString
s that are currently selected in the receiver. The order of the items is unspecified. An empty array indicates that no items are selected.Note: This is not the actual structure used by the receiver to maintain its selection, so modifying the array will not affect the receiver.
- Returns:
- an array representing the selection
- Throws:
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
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getSelectionCount
public int getSelectionCount()Returns the number of selected items contained in the receiver.- Returns:
- the number of selected items
- Throws:
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
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getSelectionIndex
public int getSelectionIndex()Returns the zero-relative index of the item which is currently selected in the receiver, or -1 if no item is selected.- Returns:
- the index of the selected item or -1
- Throws:
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
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getSelectionIndices
public int[] getSelectionIndices()Returns the zero-relative indices of the items which are currently selected in the receiver. The order of the indices is unspecified. The array is empty if no items are selected.Note: This is not the actual structure used by the receiver to maintain its selection, so modifying the array will not affect the receiver.
- Returns:
- the array of indices of the selected items
- Throws:
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
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getTopIndex
public int getTopIndex()Returns the zero-relative index of the item which is currently at the top of the receiver. This index can change when items are scrolled or new items are added or removed.- Returns:
- the index of the top item
- Throws:
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
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indexOf
Gets the index of an item.The list is searched starting at 0 until an item is found that is equal to the search item. If no item is found, -1 is returned. Indexing is zero based.
- Parameters:
string
- the search item- Returns:
- the index of the item
- Throws:
IllegalArgumentException
-- ERROR_NULL_ARGUMENT - if the string is null
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
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indexOf
Searches the receiver's list starting at the given, zero-relative index until an item is found that is equal to the argument, and returns the index of that item. If no item is found or the starting index is out of range, returns -1.- Parameters:
string
- the search itemstart
- the zero-relative index at which to start the search- Returns:
- the index of the item
- Throws:
IllegalArgumentException
-- ERROR_NULL_ARGUMENT - if the string is null
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
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isSelected
public boolean isSelected(int index) Returnstrue
if the item is selected, andfalse
otherwise. Indices out of range are ignored.- Parameters:
index
- the index of the item- Returns:
- the selection state of the item at the index
- Throws:
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
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remove
public void remove(int[] indices) Removes the items from the receiver at the given zero-relative indices.- Parameters:
indices
- the array of indices of the items- Throws:
IllegalArgumentException
-- ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)
- ERROR_NULL_ARGUMENT - if the indices array is null
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
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remove
public void remove(int index) Removes the item from the receiver at the given zero-relative index.- Parameters:
index
- the index for the item- Throws:
IllegalArgumentException
-- ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
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remove
public void remove(int start, int end) Removes the items from the receiver which are between the given zero-relative start and end indices (inclusive).- Parameters:
start
- the start of the rangeend
- the end of the range- Throws:
IllegalArgumentException
-- ERROR_INVALID_RANGE - if either the start or end are not between 0 and the number of elements in the list minus 1 (inclusive)
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
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remove
Searches the receiver's list starting at the first item until an item is found that is equal to the argument, and removes that item from the list.- Parameters:
string
- the item to remove- Throws:
IllegalArgumentException
-- ERROR_NULL_ARGUMENT - if the string is null
- ERROR_INVALID_ARGUMENT - if the string is not found in the list
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
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removeAll
public void removeAll()Removes all of the items from the receiver.- Throws:
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
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removeSelectionListener
Removes the listener from the collection of listeners who will be notified when the user changes the receiver's selection.- Parameters:
listener
- the listener which should no longer be notified- Throws:
IllegalArgumentException
-- ERROR_NULL_ARGUMENT - if the listener is null
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
- See Also:
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select
public void select(int[] indices) Selects the items at the given zero-relative indices in the receiver. The current selection is not cleared before the new items are selected.If the item at a given index is not selected, it is selected. If the item at a given index was already selected, it remains selected. Indices that are out of range and duplicate indices are ignored. If the receiver is single-select and multiple indices are specified, then all indices are ignored.
- Parameters:
indices
- the array of indices for the items to select- Throws:
IllegalArgumentException
-- ERROR_NULL_ARGUMENT - if the array of indices is null
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
- See Also:
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select
public void select(int index) Selects the item at the given zero-relative index in the receiver's list. If the item at the index was already selected, it remains selected. Indices that are out of range are ignored.- Parameters:
index
- the index of the item to select- Throws:
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
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select
public void select(int start, int end) Selects the items in the range specified by the given zero-relative indices in the receiver. The range of indices is inclusive. The current selection is not cleared before the new items are selected.If an item in the given range is not selected, it is selected. If an item in the given range was already selected, it remains selected. Indices that are out of range are ignored and no items will be selected if start is greater than end. If the receiver is single-select and there is more than one item in the given range, then all indices are ignored.
- Parameters:
start
- the start of the rangeend
- the end of the range- Throws:
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
- See Also:
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selectAll
public void selectAll()Selects all of the items in the receiver.If the receiver is single-select, do nothing.
- Throws:
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
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setFont
Description copied from class:Control
Sets the font that the receiver will use to paint textual information to the font specified by the argument, or to the default font for that kind of control if the argument is null. -
setItem
Sets the text of the item in the receiver's list at the given zero-relative index to the string argument.- Parameters:
index
- the index for the itemstring
- the new text for the item- Throws:
IllegalArgumentException
-- ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)
- ERROR_NULL_ARGUMENT - if the string is null
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
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setItems
Sets the receiver's items to be the given array of items.- Parameters:
items
- the array of items- Throws:
IllegalArgumentException
-- ERROR_NULL_ARGUMENT - if the items array is null
- ERROR_INVALID_ARGUMENT - if an item in the items array is null
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
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setSelection
public void setSelection(int[] indices) Selects the items at the given zero-relative indices in the receiver. The current selection is cleared before the new items are selected, and if necessary the receiver is scrolled to make the new selection visible.Indices that are out of range and duplicate indices are ignored. If the receiver is single-select and multiple indices are specified, then all indices are ignored.
- Parameters:
indices
- the indices of the items to select- Throws:
IllegalArgumentException
-- ERROR_NULL_ARGUMENT - if the array of indices is null
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
- See Also:
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setSelection
Sets the receiver's selection to be the given array of items. The current selection is cleared before the new items are selected, and if necessary the receiver is scrolled to make the new selection visible.Items that are not in the receiver are ignored. If the receiver is single-select and multiple items are specified, then all items are ignored.
- Parameters:
items
- the array of items- Throws:
IllegalArgumentException
-- ERROR_NULL_ARGUMENT - if the array of items is null
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
- See Also:
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setSelection
public void setSelection(int index) Selects the item at the given zero-relative index in the receiver. If the item at the index was already selected, it remains selected. The current selection is first cleared, then the new item is selected, and if necessary the receiver is scrolled to make the new selection visible. Indices that are out of range are ignored.- Parameters:
index
- the index of the item to select- Throws:
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
- See Also:
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setSelection
public void setSelection(int start, int end) Selects the items in the range specified by the given zero-relative indices in the receiver. The range of indices is inclusive. The current selection is cleared before the new items are selected, and if necessary the receiver is scrolled to make the new selection visible.Indices that are out of range are ignored and no items will be selected if start is greater than end. If the receiver is single-select and there is more than one item in the given range, then all indices are ignored.
- Parameters:
start
- the start index of the items to selectend
- the end index of the items to select- Throws:
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
- See Also:
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setTopIndex
public void setTopIndex(int index) Sets the zero-relative index of the item which is currently at the top of the receiver. This index can change when items are scrolled or new items are added and removed.- Parameters:
index
- the index of the top item- Throws:
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
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showSelection
public void showSelection()Shows the selection. If the selection is already showing in the receiver, this method simply returns. Otherwise, the items are scrolled until the selection is visible.- Throws:
SWTException
-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
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