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Eclipse Platform
Release 3.5

org.eclipse.swt.custom
Class CTabItem


java.lang.Object
  extended by 

org.eclipse.swt.widgets.Widget
      extended by 

org.eclipse.swt.widgets.Item
          extended by 
org.eclipse.swt.custom.CTabItem

public class CTabItem
extends Item

Instances of this class represent a selectable user interface object that represent a page in a notebook widget.

Styles:
SWT.CLOSE
Events:
(none)

IMPORTANT: This class is not intended to be subclassed.

See Also:
CTabFolder, CTabItem snippets, Sample code and further information
Restriction:
This class is not intended to be subclassed by clients.

Constructor Summary
CTabItem ( CTabFolder parent, int style)
          Constructs a new instance of this class given its parent (which must be a CTabFolder) and a style value describing its behavior and appearance.
CTabItem ( CTabFolder parent, int style, int index)
          Constructs a new instance of this class given its parent (which must be a CTabFolder), 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
 void dispose ()
          Disposes of the operating system resources associated with the receiver and all its descendants.
  Rectangle getBounds ()
          Returns a rectangle describing the receiver's size and location relative to its parent.
  Control getControl ()
          Gets the control that is displayed in the content area of the tab item.
  Image getDisabledImage ()
          Deprecated. the disabled image is not used
  Font getFont ()
          Returns the font that the receiver will use to paint textual information.
  CTabFolder getParent ()
          Returns the receiver's parent, which must be a CTabFolder.
 boolean getShowClose ()
          Returns true to indicate that the receiver's close button should be shown.
  String getToolTipText ()
          Returns the receiver's tool tip text, or null if it has not been set.
 boolean isShowing ()
          Returns true if the item will be rendered in the visible area of the CTabFolder.
 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 setDisabledImage ( Image image)
          Deprecated. This image is not used
 void setFont ( Font font)
          Sets the font that the receiver will use to paint textual information for this item to the font specified by the argument, or to the default font for that kind of control if the argument is null.
 void setImage ( Image image)
          Sets the receiver's image to the argument, which may be null indicating that no image should be displayed.
 void setShowClose (boolean close)
          Sets to true to indicate that the receiver's close button should be shown.
 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 the default tool tip for the control will be shown.
 
Methods inherited from class org.eclipse.swt.widgets. Item
checkSubclass, getImage, getText
 
Methods inherited from class org.eclipse.swt.widgets. Widget
addDisposeListener, addListener, checkWidget, getData, getData, getDisplay, getListeners, 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

CTabItem

public CTabItem(
CTabFolder parent,
                int style)
Constructs a new instance of this class given its parent (which must be a CTabFolder) 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.

Parameters:
parent - a CTabFolder 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
See Also:
SWT, Widget.getStyle()

CTabItem

public CTabItem(
CTabFolder parent,
                int style,
                int index)
Constructs a new instance of this class given its parent (which must be a CTabFolder), 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.

Parameters:
parent - a CTabFolder which will be the parent of the new instance (cannot be null)
style - the style of control to construct
index - the zero-relative index to store the receiver in its parent
Throws:
IllegalArgumentException -
  • ERROR_NULL_ARGUMENT - if the parent is null
  • ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the parent (inclusive)
SWTException -
  • ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent
See Also:
SWT, Widget.getStyle()
Method Detail

dispose

public void dispose()
Description copied from class: Widget
Disposes of the operating system resources associated with the receiver and all its descendants. After this method has been invoked, the receiver and all descendants will answer true when sent the message isDisposed(). Any internal connections between the widgets in the tree will have been removed to facilitate garbage collection.

NOTE: This method is not called recursively on the descendants of the receiver. This means that, widget implementers can not detect when a widget is being disposed of by re-implementing this method, but should instead listen for the Dispose event.

Overrides:
dispose in class Widget
See Also:
Widget.addDisposeListener(org.eclipse.swt.events.DisposeListener), Widget.removeDisposeListener(org.eclipse.swt.events.DisposeListener), Widget.checkWidget()

getBounds

public 
Rectangle getBounds()
Returns a rectangle describing the receiver's size and location relative to its parent.

Returns:
the receiver's bounding column rectangle
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

getControl

public 
Control getControl()
Gets the control that is displayed in the content area of the tab item.

Returns:
the control
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

getDisabledImage

public 
Image getDisabledImage()
Deprecated. the disabled image is not used

Get the image displayed in the tab if the tab is disabled.

Returns:
the disabled image 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

getFont

public 
Font getFont()
Returns the font that the receiver will use to paint textual information.

Returns:
the receiver's font
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:
3.0

getParent

public 
CTabFolder getParent()
Returns the receiver's parent, which must be a CTabFolder.

Returns:
the receiver's parent
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

getShowClose

public boolean getShowClose()
Returns true to indicate that the receiver's close button should be shown. Otherwise return false. The initial value is defined by the style (SWT.CLOSE) that was used to create the receiver.

Returns:
true if the close button should be shown
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:
3.4

getToolTipText

public 
String getToolTipText()
Returns the receiver's tool tip text, or null if it has not been set.

Returns:
the receiver's tool tip 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

isShowing

public boolean isShowing()
Returns true if the item will be rendered in the visible area of the CTabFolder. Returns false otherwise.

Returns:
true if the item will be rendered in the visible area of the CTabFolder. Returns 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:
3.0

setControl

public 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.

Parameters:
control - the new control (or null)
Throws:
IllegalArgumentException -
  • ERROR_INVALID_ARGUMENT - if the control 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

setDisabledImage

public void setDisabledImage(
Image image)
Deprecated. This image is not used

Sets the image that is displayed if the tab item is disabled. Null will clear the image.

Parameters:
image - the image to be displayed when the item is disabled 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

setFont

public void setFont(
Font font)
Sets the font that the receiver will use to paint textual information for this item to the font specified by the argument, or to the default font for that kind of control if the argument is null.

Parameters:
font - the new font (or null)
Throws:
IllegalArgumentException -
  • ERROR_INVALID_ARGUMENT - if the argument 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:
3.0

setImage

public void setImage(
Image image)
Description copied from class: Item
Sets the receiver's image to the argument, which may be null indicating that no image should be displayed.

Overrides:
setImage in class Item
Parameters:
image - the image to display on the receiver (may be null)

setShowClose

public void setShowClose(boolean close)
Sets to true to indicate that the receiver's close button should be shown. If the parent (CTabFolder) was created with SWT.CLOSE style, changing this value has no effect.

Parameters:
close - the new state of the close button
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:
3.4

setText

public void setText(
String string)
Description copied from class: Item
Sets the receiver's text.

Overrides:
setText in class Item
Parameters:
string - the new text

setToolTipText

public void setToolTipText(
String string)
Sets the receiver's tool tip text to the argument, which may be null indicating that the default tool tip for the control will be shown. For a control that has a default tool tip, such as the Tree control on Windows, setting the tool tip text to an empty string replaces the default, causing no tool tip text to be shown.

Parameters:
string - the new tool tip text (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

Eclipse Platform
Release 3.5

Guidelines for using Eclipse APIs.

Copyright (c) Eclipse contributors and others 2000, 2008. All rights reserved.


 
 
  Published under the terms of the Eclipse Public License Version 1.0 ("EPL") Design by Interspire