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java.lang.Object org.eclipse.swt.widgets.Widget org.eclipse.swt.widgets.Item
public abstract class Item
This class is the abstract superclass of all non-windowed user interface objects that occur within specific controls. For example, a tree will contain tree items.
Constructor Summary | |
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Item(Widget 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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Item(Widget parent,
int style,
int index)
Constructs a new instance of this class given its parent and a style value describing its behavior and appearance, and the index at which to place it in the items maintained by its parent. |
Method Summary | |
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Image |
getImage()
Returns the receiver's image if it has one, or null if it does not. |
java.lang.String |
getText()
Returns the receiver's text, which will be an empty string if it has never been set. |
void |
setImage(Image image)
Sets the receiver's image to the argument, which may be null indicating that no image should be displayed. |
void |
setText(java.lang.String text)
Sets the receiver's text. |
Methods inherited from class org.eclipse.swt.widgets.Widget |
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addDisposeListener, addListener, checkSubclass, checkWidget, dispose, getAdapter, getData, getData, getDisplay, getListeners, getStyle, isDisposed, isListening, notifyListeners, removeDisposeListener, removeListener, reskin, setData, setData, toString |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public Item(Widget parent, int style)
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.
parent
- a widget which will be the parent of the new instance (cannot be null)style
- the style of item to construct
java.lang.IllegalArgumentException
- SWTException
- SWT
,
Widget.getStyle()
public Item(Widget parent, int style, int index)
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.
parent
- a widget which will be the parent of the new instance (cannot be null)style
- the style of item to constructindex
- the zero-relative index at which to store the receiver in its parent
java.lang.IllegalArgumentException
- SWTException
- SWT
,
Widget.getStyle()
Method Detail |
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public void setText(java.lang.String text)
text
- the new text
java.lang.IllegalArgumentException
- SWTException
- public java.lang.String getText()
SWTException
- public void setImage(Image image)
image
- the image to display on the receiver (may be null)
java.lang.IllegalArgumentException
- SWTException
- public Image getImage()
SWTException
-
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