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org.eclipse.swt.widgets
Class Sash
java.lang.Object
org.eclipse.swt.widgets.Widget
org.eclipse.swt.widgets.Control
org.eclipse.swt.widgets.Sash
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All Implemented Interfaces:
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Adaptable
- public class Sash
- extends
Control
Instances of the receiver represent a selectable user interface object
that allows the user to drag a rubber banded outline of the sash within
the parent control.
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Styles:
- HORIZONTAL, VERTICAL, SMOOTH
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Events:
- Selection
Note: Only one of the styles HORIZONTAL and VERTICAL may be specified.
IMPORTANT: This class is intended to be subclassed only
within the SWT implementation.
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Since:
- 1.0
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Constructor Summary
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Sash
(
Composite parent,
int style)
Constructs a new instance of this class given its parent and a style
value describing its behavior and appearance. |
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Method Summary
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void
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addSelectionListener
(
SelectionListener listener)
Adds the listener to the collection of listeners who will
be notified when the control is selected, by sending
it one of the messages defined in the SelectionListener
interface. |
Point
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computeSize
(int wHint,
int hHint,
boolean changed)
Returns the preferred size of the receiver. |
void
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removeSelectionListener
(
SelectionListener listener)
Removes the listener from the collection of listeners who will
be notified when the control is selected. |
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Methods inherited from class org.eclipse.swt.widgets.
Control
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addControlListener,
addFocusListener,
addKeyListener,
addMouseListener,
addTraverseListener,
computeSize,
forceFocus,
getAdapter,
getBackground,
getBackgroundImage,
getBorderWidth,
getBounds,
getCursor,
getEnabled,
getFont,
getForeground,
getLayoutData,
getLocation,
getMenu,
getMonitor,
getParent,
getShell,
getSize,
getToolTipText,
getVisible,
isEnabled,
isFocusControl,
isVisible,
moveAbove,
moveBelow,
pack,
pack,
redraw,
removeControlListener,
removeFocusListener,
removeKeyListener,
removeMouseListener,
removeTraverseListener,
setBackground,
setBackgroundImage,
setBounds,
setBounds,
setCursor,
setEnabled,
setFocus,
setFont,
setForeground,
setLayoutData,
setLocation,
setLocation,
setMenu,
setRedraw,
setSize,
setSize,
setToolTipText,
setVisible,
toControl,
toControl,
toDisplay,
toDisplay
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Methods inherited from class org.eclipse.swt.widgets.
Widget
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addDisposeListener,
addListener,
checkSubclass,
checkWidget,
dispose,
getData,
getData,
getDisplay,
getStyle,
isDisposed,
notifyListeners,
removeDisposeListener,
removeListener,
setData,
setData,
toString
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Sash
public Sash(
Composite parent,
int style)
- 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 the
int "|" operator) two or more of those SWT
style constants. The class description lists the style constants that are
applicable to the class. Style bits are also inherited from superclasses.
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Parameters:
-
parent - a composite control which will be the parent of the new
instance (cannot be null) -
style - the style of control to construct
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Throws:
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IllegalArgumentException
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- ERROR_NULL_ARGUMENT - if the parent is null
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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
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See Also:
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SWT.HORIZONTAL,
SWT.VERTICAL,
Widget.checkSubclass(),
Widget.getStyle()
computeSize
public
Point computeSize(int wHint,
int hHint,
boolean changed)
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Description copied from class:
Control
- Returns 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.DEFAULT is 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 be false, so layout
manager caches can be retained.
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Overrides:
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computeSize
in class
Control
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Parameters:
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wHint - the width hint (can be SWT.DEFAULT) -
hHint - the height hint (can be SWT.DEFAULT) -
changed - true if the control's contents have changed, and false otherwise
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Returns:
- the preferred size of the control.
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See Also:
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Layout,
Control.getBorderWidth(),
Control.getBounds(),
Control.getSize(),
Control.pack(boolean),
"computeTrim, getClientArea for controls that implement them"
addSelectionListener
public void addSelectionListener(
SelectionListener listener)
- Adds the listener to the collection of listeners who will
be notified when the control is selected, by sending
it one of the messages defined in the
SelectionListener
interface.
When widgetSelected is called, the x, y, width, and height fields of the event object are valid.
If the receiver is being dragged, the event object detail field contains the value SWT.DRAG.
widgetDefaultSelected is not called.
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Parameters:
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listener - the listener which should be notified
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Throws:
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IllegalArgumentException
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- ERROR_NULL_ARGUMENT - if the listener is null
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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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See Also:
-
SelectionListener,
removeSelectionListener(org.eclipse.swt.events.SelectionListener),
SelectionEvent
removeSelectionListener
public void removeSelectionListener(
SelectionListener listener)
- Removes the listener from the collection of listeners who will
be notified when the control is selected.
-
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Parameters:
-
listener - the listener which should no longer be notified
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Throws:
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IllegalArgumentException
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- ERROR_NULL_ARGUMENT - if the listener is null
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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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See Also:
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SelectionListener,
addSelectionListener(org.eclipse.swt.events.SelectionListener)
Copyright (c) Innoopract Informationssysteme GmbH and others 2002, 2008. All rights reserved.
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