Class CoolBar
- All Implemented Interfaces:
Drawable
The item children that may be added to instances of this class
must be of type CoolItem
.
Note that although this class is a subclass of Composite
,
it does not make sense to add Control
children to it,
or set a layout on it.
- Styles:
- FLAT, HORIZONTAL, VERTICAL
- Events:
- (none)
Note: Only one of the styles HORIZONTAL and VERTICAL 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 TypeMethodDescriptionprotected void
Checks that this class can be subclassed.getItem
(int index) Returns the item that is currently displayed at the given, zero-relative index.int
Returns the number of items contained in the receiver.int[]
Returns an array of zero-relative ints that map the creation order of the receiver's items to the order in which they are currently being displayed.CoolItem[]
getItems()
Returns an array ofCoolItem
s in the order in which they are currently being displayed.Point[]
Returns an array of points whose x and y coordinates describe the widths and heights (respectively) of the items in the receiver in the order in which they are currently being displayed.boolean
Returns whether or not the receiver is 'locked'.int[]
Returns an array of ints that describe the zero-relative indices of any item(s) in the receiver that will begin on a new row.int
Searches the receiver's items in the order they are currently being displayed, 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.void
setItemLayout
(int[] itemOrder, int[] wrapIndices, Point[] sizes) Sets the receiver's item order, wrap indices, and item sizes all at once.void
setLocked
(boolean locked) Sets whether or not the receiver is 'locked'.void
setWrapIndices
(int[] indices) Sets the indices of all item(s) in the receiver that will begin on a new row.Methods inherited from class org.eclipse.swt.widgets.Composite
changed, drawBackground, getBackgroundMode, getChildren, getLayout, getLayoutDeferred, getTabList, isLayoutDeferred, layout, layout, layout, layout, layout, setBackgroundMode, setFocus, setLayout, setLayoutDeferred, setTabList, toString
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, setFont, 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, checkWidget, dispose, getData, getData, getDisplay, getListeners, getStyle, getTypedListeners, isAutoDirection, isDisposed, isListening, notifyListeners, removeDisposeListener, removeListener, removeListener, removeTypedListener, reskin, setData, setData
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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CoolBar
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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checkSubclass
protected void checkSubclass()Description copied from class:Widget
Checks that this class can be subclassed.The SWT class library is intended to be subclassed only at specific, controlled points (most notably,
Composite
andCanvas
when implementing new widgets). This method enforces this rule unless it is overridden.IMPORTANT: By providing an implementation of this method that allows a subclass of a class which does not normally allow subclassing to be created, the implementer agrees to be fully responsible for the fact that any such subclass will likely fail between SWT releases and will be strongly platform specific. No support is provided for user-written classes which are implemented in this fashion.
The ability to subclass outside of the allowed SWT classes is intended purely to enable those not on the SWT development team to implement patches in order to get around specific limitations in advance of when those limitations can be addressed by the team. Subclassing should not be attempted without an intimate and detailed understanding of the hierarchy.
- Overrides:
checkSubclass
in classComposite
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getItem
Returns the item that is currently displayed at the given, zero-relative index. Throws an exception if the index is out of range.- Parameters:
index
- the visual index of the item to return- Returns:
- the item at the given visual 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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getItemOrder
public int[] getItemOrder()Returns an array of zero-relative ints that map the creation order of the receiver's items to the order in which they are currently being displayed.Specifically, the indices of the returned array represent the current visual order of the items, and the contents of the array represent the creation order of the items.
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 current visual order of the receiver's 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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getItems
Returns an array ofCoolItem
s in the order in which they are currently being displayed.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 receiver's items in their current visual order
- 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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getItemSizes
Returns an array of points whose x and y coordinates describe the widths and heights (respectively) of the items in the receiver in the order in which they are currently being displayed.- Returns:
- the receiver's item sizes in their current visual order
- 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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getLocked
public boolean getLocked()Returns whether or not the receiver is 'locked'. When a coolbar is locked, its items cannot be repositioned.- Returns:
- true if the coolbar is locked, false otherwise
- 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:
- 2.0
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getWrapIndices
public int[] getWrapIndices()Returns an array of ints that describe the zero-relative indices of any item(s) in the receiver that will begin on a new row. The 0th visible item always begins the first row, therefore it does not count as a wrap index.- Returns:
- an array containing the receiver's wrap indices, or an empty array if all items are in one row
- 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
Searches the receiver's items in the order they are currently being displayed, 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:
item
- the search item- Returns:
- the visual order index of the search item, or -1 if the item is not found
- Throws:
IllegalArgumentException
-- ERROR_NULL_ARGUMENT - if the item is null
- ERROR_INVALID_ARGUMENT - if the item is disposed
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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setItemLayout
Sets the receiver's item order, wrap indices, and item sizes all at once. This method is typically used to restore the displayed state of the receiver to a previously stored state.The item order is the order in which the items in the receiver should be displayed, given in terms of the zero-relative ordering of when the items were added.
The wrap indices are the indices of all item(s) in the receiver that will begin on a new row. The indices are given in the order specified by the item order. The 0th item always begins the first row, therefore it does not count as a wrap index. If wrap indices is null or empty, the items will be placed on one line.
The sizes are specified in an array of points whose x and y coordinates describe the new widths and heights (respectively) of the receiver's items in the order specified by the item order.
- Parameters:
itemOrder
- an array of indices that describe the new order to display the items inwrapIndices
- an array of wrap indices, or nullsizes
- an array containing the new sizes for each of the receiver's items in visual order- 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
IllegalArgumentException
-- ERROR_NULL_ARGUMENT - if item order or sizes is null
- ERROR_INVALID_ARGUMENT - if item order or sizes is not the same length as the number of items
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setLocked
public void setLocked(boolean locked) Sets whether or not the receiver is 'locked'. When a coolbar is locked, its items cannot be repositioned.- Parameters:
locked
- lock the coolbar if true, otherwise unlock the coolbar- 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:
- 2.0
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setWrapIndices
public void setWrapIndices(int[] indices) Sets the indices of all item(s) in the receiver that will begin on a new row. The indices are given in the order in which they are currently being displayed. The 0th item always begins the first row, therefore it does not count as a wrap index. If indices is null or empty, the items will be placed on one line.- Parameters:
indices
- an array of wrap indices, 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
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