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Eclipse Platform 2.0 |
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java.lang.Object | +--org.eclipse.swt.widgets.Widget | +--org.eclipse.swt.widgets.Item | +--org.eclipse.swt.widgets.TabItem
Instances of this class represent a selectable user interface object corresponding to a tab for a page in a tab folder.
IMPORTANT: This class is not intended to be subclassed.
Constructor Summary | |
TabItem(TabFolder parent,
int style)
Constructs a new instance of this class given its parent (which must be a TabFolder ) and a style value
describing its behavior and appearance. |
|
TabItem(TabFolder parent,
int style,
int index)
Constructs a new instance of this class given its parent (which must be a TabFolder ), 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 | |
protected void |
checkSubclass()
Checks that this class can be subclassed. |
Control |
getControl()
Returns the control that is used to fill the client area of the tab folder when the user selects the tab item. |
Display |
getDisplay()
Returns the Display that is associated with
the receiver. |
TabFolder |
getParent()
Returns the receiver's parent, which must be a TabFolder . |
String |
getToolTipText()
Returns the receiver's tool tip text, or null if it has not been set. |
void |
setControl(Control control)
Sets the control that is used to fill the client area of the tab folder when the user selects the tab item. |
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(String string)
Sets the receiver's text. |
void |
setToolTipText(String string)
Sets the receiver's tool tip text to the argument, which may be null indicating that no tool tip text should be shown. |
Methods inherited from class org.eclipse.swt.widgets.Item |
getImage, getText |
Methods inherited from class org.eclipse.swt.widgets.Widget |
addDisposeListener, addListener, checkWidget, dispose, getData, getData, getStyle, isDisposed, isListening, notifyListeners, removeDisposeListener, removeListener, removeListener, setData, setData, toString |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
public TabItem(TabFolder parent, int style)
TabFolder
) and a style value
describing its behavior and appearance. The item is added
to the end of the items maintained by its parent.
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 composite control which will be the parent of the new instance (cannot be null)style
- the style of control to construct
IllegalArgumentException
- SWTException
- SWT
,
Widget.checkSubclass()
,
Widget.getStyle()
public TabItem(TabFolder parent, int style, int index)
TabFolder
), a style value
describing its behavior and appearance, and the index
at which to place it in the items maintained by its parent.
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 composite control which will be the parent of the new instance (cannot be null)style
- the style of control to constructindex
- the index to store the receiver in its parent
IllegalArgumentException
- SWTException
- SWT
,
Widget.checkSubclass()
,
Widget.getStyle()
Method Detail |
protected void checkSubclass()
Widget
The SWT class library is intended to be subclassed
only at specific, controlled points (most notably,
Composite
and Canvas
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.
checkSubclass
in class Item
public Control getControl()
null
.
SWTException
- public Display getDisplay()
Widget
Display
that is associated with
the receiver.
A widget's display is either provided when it is created
(for example, top level Shell
s) or is the
same as its parent's display.
getDisplay
in class Widget
public TabFolder getParent()
TabFolder
.
SWTException
- public String getToolTipText()
SWTException
- public void setControl(Control control)
control
- the new control (or null)
IllegalArgumentException
- SWTException
- public void setImage(Image image)
Item
setImage
in class Item
image
- the image to display on the receiver (may be null)public void setText(String string)
Item
setText
in class Item
string
- the new textpublic void setToolTipText(String string)
string
- the new tool tip text (or null)
SWTException
-
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Eclipse Platform 2.0 |
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