Class CCombo
CCombo was written to work around certain limitations in the native combo box. Specifically, on win32, the height of a CCombo can be set; attempts to set the height of a Combo are ignored. CCombo can be used anywhere that having the increased flexibility is more important than getting native L&F, but the decision should not be taken lightly. There is no is no strict requirement that CCombo look or behave the same as the native combo box.
Note that although this class is a subclass of Composite,
it does not make sense to add children to it, or set a layout on it.
- Styles:
- BORDER, READ_ONLY, FLAT
- Events:
- DefaultSelection, Modify, Selection, Verify
- Since:
- 1.2
-
Field Summary
FieldsModifier and TypeFieldDescriptionstatic final intThe maximum number of characters that can be entered into a text widget. -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoidAdds the argument to the end of the receiver's list.voidAdds the argument to the receiver's list at the given zero-relative index.voidaddModifyListener(ModifyListener listener) Adds the listener to the collection of listeners who will be notified when the receiver's text is modified, by sending it one of the messages defined in theModifyListenerinterface.voidaddSelectionListener(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 theSelectionListenerinterface.voidaddVerifyListener(VerifyListener listener) Adds the listener to the collection of listeners who will be notified when the receiver's text is verified, by sending it one of the messages defined in theVerifyListenerinterface.voidSets the selection in the receiver's text field to an empty selection starting just before the first character.computeSize(int wHint, int hHint, boolean changed) Returns the preferred size of the receiver.voiddeselect(int index) Deselects the item at the given zero-relative index in the receiver's list.voidDeselects all selected items in the receiver's list.<T> TgetAdapter(Class<T> adapter) Implementation of theAdaptableinterface.Control[]Returns a (possibly empty) array containing the receiver's children.booleanGets the editable state.getItem(int index) Returns the item at the given, zero-relative index in the receiver's list.intReturns the number of items contained in the receiver's list.intReturns the height of the area which would be used to display one of the items in the receiver's list.String[]getItems()Returns an array ofStrings which are the items in the receiver's list.booleanReturnstrueif the receiver's list is visible, andfalseotherwise.Returns aPointwhose x coordinate is the start of the selection in the receiver's text field, and whose y coordinate is the end of the selection.intReturns the zero-relative index of the item which is currently selected in the receiver's list, or -1 if no item is selected.intgetStyle()Returns the receiver's style information.getText()Returns a string containing a copy of the contents of the receiver's text field.intReturns the height of the receivers's text field.intReturns the maximum number of characters that the receiver's text field is capable of holding.intGets the number of items that are visible in the drop down portion of the receiver's list.intSearches the receiver's list starting at the first item (index 0) until an item is found that is equal to the argument, and returns the index of that item.intSearches 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.voidremove(int index) Removes the item from the receiver's list at the given zero-relative index.voidremove(int start, int end) Removes the items from the receiver's list which are between the given zero-relative start and end indices (inclusive).voidSearches 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.voidRemoves all of the items from the receiver's list and clear the contents of receiver's text field.voidremoveModifyListener(ModifyListener listener) Removes the listener from the collection of listeners who will be notified when the receiver's text is modified.voidremoveSelectionListener(SelectionListener listener) Removes the listener from the collection of listeners who will be notified when the user changes the receiver's selection.voidremoveVerifyListener(VerifyListener listener) Removes the listener from the collection of listeners who will be notified when the control is verified.voidselect(int index) Selects the item at the given zero-relative index in the receiver's list.voidsetEditable(boolean editable) Sets the editable state.voidSets the text of the item in the receiver's list at the given zero-relative index to the string argument.voidSets the receiver's list to be the given array of items.voidSets the layout which is associated with the receiver to be the argument which may be null.voidsetListVisible(boolean visible) Marks the receiver's list as visible if the argument istrue, and marks it invisible otherwise.voidsetSelection(Point selection) Sets the selection in the receiver's text field to the range specified by the argument whose x coordinate is the start of the selection and whose y coordinate is the end of the selection.voidSets the contents of the receiver's text field to the given string.voidsetTextLimit(int limit) Sets the maximum number of characters that the receiver's text field is capable of holding to be the argument.voidsetVisibleItemCount(int count) Sets the number of items that are visible in the drop down portion of the receiver's list.Methods inherited from class org.eclipse.swt.widgets.Composite
changed, getBackgroundMode, getLayout, getLayoutDeferred, getTabList, isLayoutDeferred, layout, layout, layout, layout, layout, setBackgroundMode, setFocus, setLayoutDeferred, setTabListMethods inherited from class org.eclipse.swt.widgets.Scrollable
computeTrim, getClientArea, getHorizontalBar, getVerticalBarMethods inherited from class org.eclipse.swt.widgets.Control
addControlListener, addDragDetectListener, addFocusListener, addGestureListener, addHelpListener, addKeyListener, addMenuDetectListener, addMouseListener, addTouchListener, addTraverseListener, computeSize, forceFocus, getAccessible, getBackground, getBackgroundImage, getBorderWidth, getBounds, getCursor, getEnabled, getFont, getForeground, getLayoutData, getLocation, getMenu, getMonitor, getOrientation, getParent, getShell, getSize, getToolTipText, getTouchEnabled, getVisible, isEnabled, isFocusControl, isReparentable, isVisible, moveAbove, moveBelow, pack, pack, redraw, redraw, removeControlListener, removeDragDetectListener, removeFocusListener, removeGestureListener, removeHelpListener, removeKeyListener, removeMenuDetectListener, removeMouseListener, removeTouchListener, removeTraverseListener, requestLayout, setBackground, setBackgroundImage, setBounds, setBounds, setCursor, setData, setEnabled, setFont, setForeground, setLayoutData, setLocation, setLocation, setMenu, setOrientation, setParent, setRedraw, setSize, setSize, setToolTipText, setTouchEnabled, setVisible, toControl, toControl, toDisplay, toDisplay, updateMethods inherited from class org.eclipse.swt.widgets.Widget
addDisposeListener, addListener, checkSubclass, checkWidget, dispose, getData, getData, getDisplay, getListeners, isDisposed, isListening, notifyListeners, removeDisposeListener, removeListener, removeListener, reskin, setData, toString
-
Field Details
-
LIMIT
public static final int LIMITThe maximum number of characters that can be entered into a text widget.Note that this value is platform dependent, based upon the native widget implementation.
- See Also:
-
-
Constructor Details
-
CCombo
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
SWTwhich 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 thoseSWTstyle constants. The class description lists the style constants that are applicable to the class. Style bits are also inherited from superclasses.- Parameters:
parent- a widget which will be the parent of the new instance (cannot be null)style- the style of widget 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
- See Also:
-
-
Method Details
-
getStyle
public int getStyle()Description copied from class:WidgetReturns the receiver's style information.Note that the value which is returned by this method may not match the value which was provided to the constructor when the receiver was created. This can occur when the underlying operating system does not support a particular combination of requested styles. For example, if the platform widget used to implement a particular SWT widget always has scroll bars, the result of calling this method would always have the
SWT.H_SCROLLandSWT.V_SCROLLbits set. -
getSelectionIndex
public int getSelectionIndex()Returns the zero-relative index of the item which is currently selected in the receiver's list, or -1 if no item is selected.- 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
-
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
-
deselect
public void deselect(int index) Deselects the item at the given zero-relative index in the receiver's list. 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
-
deselectAll
public void deselectAll()Deselects all selected items in the receiver's list.Note: To clear the selection in the receiver's text field, use
clearSelection().- 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:
-
setSelection
Sets the selection in the receiver's text field to the range specified by the argument whose x coordinate is the start of the selection and whose y coordinate is the end of the selection.- Parameters:
selection- a point representing the new selection start and end- Throws:
IllegalArgumentException-- ERROR_NULL_ARGUMENT - if the point 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
-
getSelection
Returns aPointwhose x coordinate is the start of the selection in the receiver's text field, and whose y coordinate is the end of the selection. The returned values are zero-relative. An "empty" selection as indicated by the the x and y coordinates having the same value.- Returns:
- a point representing the selection start and end
- 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
-
setTextLimit
public void setTextLimit(int limit) Sets the maximum number of characters that the receiver's text field is capable of holding to be the argument.- Parameters:
limit- new text limit- Throws:
IllegalArgumentException-- ERROR_CANNOT_BE_ZERO - if the limit is zero
SWTException-- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
-
getTextLimit
public int getTextLimit()Returns the maximum number of characters that the receiver's text field is capable of holding. If this has not been changed bysetTextLimit(), it will be the constantCombo.LIMIT.- Returns:
- the text limit
- 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
-
getTextHeight
public int getTextHeight()Returns the height of the receivers's text field.- Returns:
- the text height
- 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
- Since:
- 1.3
-
clearSelection
public void clearSelection()Sets the selection in the receiver's text field to an empty selection starting just before the first character. If the text field is editable, this has the effect of placing the i-beam at the start of the text.Note: To clear the selected items in the receiver's list, use
deselectAll().- 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:
-
add
Adds the argument to the end of the receiver's list.- 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:
-
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).- 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:
-
remove
public void remove(int index) Removes the item from the receiver's list 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
-
remove
public void remove(int start, int end) Removes the items from the receiver's list 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
-
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
-
removeAll
public void removeAll()Removes all of the items from the receiver's list and clear the contents of receiver's text field.- 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
-
setItem
Sets the text of the item in the receiver's list at the given zero-relative index to the string argument. This is equivalent toremove'ing the old item at the index, and thenadd'ing the new item at that index.- 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
-
setItems
Sets the receiver's list 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
-
getItem
Returns the item at the given, zero-relative index in the receiver's list. 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
-
getItemCount
public int getItemCount()Returns the number of items contained in the receiver's list.- 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
-
getItemHeight
public int getItemHeight()Returns the height of the area which would be used to display one of the items in the receiver's 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
-
getItems
Returns an array ofStrings which are the items in the receiver's list.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
-
setVisibleItemCount
public void setVisibleItemCount(int count) Sets the number of items that are visible in the drop down portion of the receiver's list.- Parameters:
count- the new number of items to be 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
-
getVisibleItemCount
public int getVisibleItemCount()Gets the number of items that are visible in the drop down portion of the receiver's list.- Returns:
- the number of items that are 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
-
setListVisible
public void setListVisible(boolean visible) Marks the receiver's list as visible if the argument istrue, and marks it invisible otherwise.If one of the receiver's ancestors is not visible or some other condition makes the receiver not visible, marking it visible may not actually cause it to be displayed.
- Parameters:
visible- the new visibility state- 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
-
getListVisible
public boolean getListVisible()Returnstrueif the receiver's list is visible, andfalseotherwise.If one of the receiver's ancestors is not visible or some other condition makes the receiver not visible, this method may still indicate that it is considered visible even though it may not actually be showing.
- Returns:
- the receiver's list's visibility state
- 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
-
indexOf
Searches the receiver's list starting at the first item (index 0) until an item is found that is equal to the argument, and returns the index of that item. If no item is found, returns -1.- 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
-
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 begin 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
-
setText
Sets the contents of the receiver's text field to the given string.Note: The text field in a
Combois typically only capable of displaying a single line of text. Thus, setting the text to a string containing line breaks or other special characters will probably cause it to display incorrectly.- Parameters:
string- the new text- 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
-
getText
Returns a string containing a copy of the contents of the receiver's text field.- Returns:
- the receiver's text
- 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
-
setEditable
public void setEditable(boolean editable) Sets the editable state.- Parameters:
editable- the new editable state- 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
-
getEditable
public boolean getEditable()Gets the editable state.- Returns:
- whether or not the receiver is editable
- 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
-
computeSize
Description copied from class:ControlReturns the preferred size of the receiver.The preferred size of a control is the size that it would best be displayed at. The width hint and height hint arguments allow the caller to ask a control questions such as "Given a particular width, how high does the control need to be to show all of the contents?" To indicate that the caller does not wish to constrain a particular dimension, the constant
SWT.DEFAULTis passed for the hint.If the changed flag is
true, it indicates that the receiver's contents have changed, therefore any caches that a layout manager containing the control may have been keeping need to be flushed. When the control is resized, the changed flag will befalse, so layout manager caches can be retained.- Overrides:
computeSizein classComposite- Parameters:
wHint- the width hint (can beSWT.DEFAULT)hHint- the height hint (can beSWT.DEFAULT)changed-trueif the control's contents have changed, andfalseotherwise- Returns:
- the preferred size of the control.
- See Also:
-
LayoutControl.getBorderWidth()Control.getBounds()Control.getSize()Control.pack(boolean)- "computeTrim, getClientArea for controls that implement them"
-
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 theSelectionListenerinterface.widgetSelectedis called when the combo's list selection changes.widgetDefaultSelectedis typically called when ENTER is pressed the combo's text area.- 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:
-
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:
-
addModifyListener
Adds the listener to the collection of listeners who will be notified when the receiver's text is modified, by sending it one of the messages defined in theModifyListenerinterface.- Parameters:
listener- the listener which should 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:
-
removeModifyListener
Removes the listener from the collection of listeners who will be notified when the receiver's text is modified.- 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:
-
addVerifyListener
Adds the listener to the collection of listeners who will be notified when the receiver's text is verified, by sending it one of the messages defined in theVerifyListenerinterface.- Parameters:
listener- the listener which should 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:
-
removeVerifyListener
Removes the listener from the collection of listeners who will be notified when the control is verified.- 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:
-
getChildren
Description copied from class:CompositeReturns a (possibly empty) array containing the receiver's children. Children are returned in the order that they are drawn. The topmost control appears at the beginning of the array. Subsequent controls draw beneath this control and appear later in the array.Note: This is not the actual structure used by the receiver to maintain its list of children, so modifying the array will not affect the receiver.
- Overrides:
getChildrenin classComposite- Returns:
- an array of children
- See Also:
-
setLayout
Sets the layout which is associated with the receiver to be the argument which may be null.Note: No Layout can be set on this Control because it already manages the size and position of its children.
- Overrides:
setLayoutin classComposite- Parameters:
layout- the receiver's new layout or null- 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
-
getAdapter
Description copied from class:WidgetImplementation of theAdaptableinterface.IMPORTANT: This method is not part of the RWT public API. It is marked public only so that it can be shared within the packages provided by RWT. It should never be accessed from application code.
- Specified by:
getAdapterin interfaceAdaptable- Overrides:
getAdapterin classComposite- Parameters:
adapter- the lookup class- Returns:
- an object that can be cast to the given class or
nullif there is no adapter associated with the given class.
-