java.lang.Object
- org.eclipse.swt.widgets.Widget
- - org.eclipse.swt.widgets.Control
  - - org.eclipse.swt.widgets.Scrollable
    - - org.eclipse.swt.widgets.Composite
      - org.eclipse.swt.widgets.Canvas
        
        org.eclipse.swt.widgets.Decorations

All Implemented Interfaces:

Adaptable, Drawable

Direct Known Subclasses:

Shell
```
public class Decorations
extends Canvas
```
This class was introduced to be API compatible with SWT and does only provide those methods that are absolutely necessary to serve this purpose.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`<T> T`	`getAdapter(java.lang.Class<T> adapter)`	Implementation of the `Adaptable` interface.
`Button`	`getDefaultButton()`	Returns the receiver's default button if one had previously been set, otherwise returns null.
`Image`	`getImage()`	Returns the receiver's image if it had previously been set using `setImage()`.
`Image[]`	`getImages()`	Returns the receiver's images if they had previously been set using `setImages()`.
`Menu`	`getMenuBar()`	Returns the receiver's menu bar if one had previously been set, otherwise returns null.
`java.lang.String`	`getText()`	Returns the receiver's text, which is the string that the window manager will typically display as the receiver's title.
`boolean`	`isReparentable()`	Returns `true` if the underlying operating system supports this reparenting, otherwise `false`
`void`	`setDefaultButton(Button button)`	If the argument is not null, sets the receiver's default button to the argument, and if the argument is null, sets the receiver's default button to the first button which was set as the receiver's default button (called the saved default button).
`void`	`setImage(Image image)`	Sets the receiver's image to the argument, which may be null.
`void`	`setImages(Image[] images)`	Sets the receiver's images to the argument, which may be an empty array.
`void`	`setMenuBar(Menu menuBar)`	Sets the receiver's menu bar to the argument, which may be null.
`void`	`setText(java.lang.String text)`	Sets the receiver's text, which is the string that the window manager will typically display as the receiver's title, to the argument, which must not be null.

Methods inherited from class org.eclipse.swt.widgets.Canvas
addPaintListener, removePaintListener

Methods inherited from class org.eclipse.swt.widgets.Composite
changed, computeSize, getBackgroundMode, getChildren, getLayout, getLayoutDeferred, getTabList, isLayoutDeferred, layout, layout, layout, layout, layout, setBackgroundMode, setFocus, setLayout, setLayoutDeferred, setTabList

Methods inherited from class org.eclipse.swt.widgets.Scrollable
computeTrim, getClientArea, getHorizontalBar, getVerticalBar

Methods 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, 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, update

Methods inherited from class org.eclipse.swt.widgets.Widget
addDisposeListener, addListener, checkSubclass, checkWidget, dispose, getData, getData, getDisplay, getListeners, getStyle, isDisposed, isListening, notifyListeners, removeDisposeListener, removeListener, removeListener, reskin, setData, toString

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Method Detail
  - getAdapter
```
public <T> T getAdapter(java.lang.Class<T> adapter)
```
    Description copied from class: Widget
    
    Implementation of the Adaptable interface.
    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:
    
    getAdapter in interface Adaptable
    
    Overrides:
    
    getAdapter in class Canvas
    
    Parameters:
    
    adapter - the lookup class
    
    Returns:
    
    an object that can be cast to the given class or null if there is no adapter associated with the given class.
  - setImages
```
public void setImages(Image[] images)
```
    Sets the receiver's images to the argument, which may be an empty array. Images are typically displayed by the window manager when the instance is marked as iconified, and may also be displayed somewhere in the trim when the instance is in normal or maximized states. Depending where the icon is displayed, the platform chooses the icon with the "best" attributes. It is expected that the array will contain the same icon rendered at different sizes, with different depth and transparency attributes.
    Parameters:
    
    images - the new image array
    
    Throws:
    
    java.lang.IllegalArgumentException -
    
    ERROR_NULL_ARGUMENT - if the array of images is null
    
    ERROR_INVALID_ARGUMENT - if one of the images is null or has been 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
    
    Since:
    
    1.3
  - getImages
```
public Image[] getImages()
```
    Returns the receiver's images if they had previously been set using setImages(). Images are typically displayed by the window manager when the instance is marked as iconified, and may also be displayed somewhere in the trim when the instance is in normal or maximized states. Depending where the icon is displayed, the platform chooses the icon with the "best" attributes. It is expected that the array will contain the same icon rendered at different sizes, with different depth and transparency attributes.
    Note: This method will return an empty array if called before setImages() is called. It does not provide access to a window manager provided, "default" image even if one exists.
    Returns:
    
    the images
    
    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
  - setImage
```
public void setImage(Image image)
```
    Sets the receiver's image to the argument, which may be null. The image is typically displayed by the window manager when the instance is marked as iconified, and may also be displayed somewhere in the trim when the instance is in normal or maximized states.
    Parameters:
    
    image - the new image (or null)
    
    Throws:
    
    java.lang.IllegalArgumentException -
    
    ERROR_INVALID_ARGUMENT - if the image has been 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
  - getImage
```
public Image getImage()
```
    Returns the receiver's image if it had previously been set using setImage(). The image is typically displayed by the window manager when the instance is marked as iconified, and may also be displayed somewhere in the trim when the instance is in normal or maximized states.
    Note: This method will return null if called before setImage() is called. It does not provide access to a window manager provided, "default" image even if one exists.
    Returns:
    
    the image
    
    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
  - setText
```
public void setText(java.lang.String text)
```
    Sets the receiver's text, which is the string that the window manager will typically display as the receiver's title, to the argument, which must not be null.
    Parameters:
    
    text - the new text
    
    Throws:
    
    java.lang.IllegalArgumentException -
    
    ERROR_NULL_ARGUMENT - if the text 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
    
    Since:
    
    2.2
  - getText
```
public java.lang.String getText()
```
    Returns the receiver's text, which is the string that the window manager will typically display as the receiver's title. If the text has not previously been set, returns an empty string.
    Returns:
    
    the 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
    
    Since:
    
    2.2
  - setMenuBar
```
public void setMenuBar(Menu menuBar)
```
    Sets the receiver's menu bar to the argument, which may be null.
    Parameters:
    
    menuBar - the new menu bar
    
    Throws:
    
    java.lang.IllegalArgumentException -
    
    ERROR_INVALID_ARGUMENT - if the menu has been disposed
    
    ERROR_INVALID_PARENT - if the menu is not in the same widget tree
    
    SWTException -
    
    ERROR_WIDGET_DISPOSED - if the receiver has been disposed
    
    ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
  - getMenuBar
```
public Menu getMenuBar()
```
    Returns the receiver's menu bar if one had previously been set, otherwise returns null.
    Returns:
    
    the menu bar 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
  - isReparentable
```
public boolean isReparentable()
```
    Description copied from class: Control
    
    Returns true if the underlying operating system supports this reparenting, otherwise false
    
    Overrides:
    
    isReparentable in class Control
    
    Returns:
    
    true if the widget can be reparented, otherwise false
  - setDefaultButton
```
public void setDefaultButton(Button button)
```
    If the argument is not null, sets the receiver's default button to the argument, and if the argument is null, sets the receiver's default button to the first button which was set as the receiver's default button (called the saved default button). If no default button had previously been set, or the saved default button was disposed, the receiver's default button will be set to null.
    The default button is the button that is selected when the receiver is active and the user presses ENTER.
    Parameters:
    
    button - the new default button
    
    Throws:
    
    java.lang.IllegalArgumentException -
    
    ERROR_INVALID_ARGUMENT - if the button has been disposed
    
    ERROR_INVALID_PARENT - if the control is not in the same widget tree
    
    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:
    
    2.2
  - getDefaultButton
```
public Button getDefaultButton()
```
    Returns the receiver's default button if one had previously been set, otherwise returns null.
    Returns:
    
    the default button 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
    
    Since:
    
    2.2
    
    See Also:
    
    setDefaultButton(Button)

Class Decorations

Method Summary

Methods inherited from class org.eclipse.swt.widgets.Canvas

Methods inherited from class org.eclipse.swt.widgets.Composite

Methods inherited from class org.eclipse.swt.widgets.Scrollable

Methods inherited from class org.eclipse.swt.widgets.Control

Methods inherited from class org.eclipse.swt.widgets.Widget

Methods inherited from class java.lang.Object

Method Detail

getAdapter

setImages

getImages

setImage

getImage

setText

getText

setMenuBar

getMenuBar

isReparentable

setDefaultButton

getDefaultButton