Class ToolTip

java.lang.Object
org.eclipse.swt.widgets.Widget
org.eclipse.swt.widgets.ToolTip
All Implemented Interfaces:
Adaptable

public class ToolTip extends Widget
Instances of this class represent popup windows that are used to inform or warn the user.

Styles:
BALLOON, ICON_ERROR, ICON_INFORMATION, ICON_WARNING
Events:
Selection

Note: Only one of the styles ICON_ERROR, ICON_INFORMATION, and ICON_WARNING may be specified.

IMPORTANT: This class is not intended to be subclassed.

Since:
1.4
See Also:
  • Constructor Details

    • ToolTip

      public ToolTip(Shell 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.

      Parameters:
      parent - a composite control 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
      • ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass
      See Also:
  • Method Details

    • getAdapter

      public <T> T getAdapter(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 Widget
      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.
    • getParent

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

      public boolean getAutoHide()
      Returns true if the receiver is automatically hidden by the platform, and false otherwise.
      Returns:
      the receiver's auto hide state
      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
    • setAutoHide

      public void setAutoHide(boolean autoHide)
      Makes the receiver hide automatically when true, and remain visible when false.
      Parameters:
      autoHide - the auto hide state
      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
      See Also:
    • isVisible

      public boolean isVisible()
      Returns true if the receiver is visible, and false otherwise.

      If one of the receiver's ancestors is not visible or some other condition makes the receiver not visible, this method may still indicate that it is considered visible even though it may not actually be showing.

      Returns:
      the receiver's visibility state
      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
    • getVisible

      public boolean getVisible()
      Returns true if the receiver is visible, and false otherwise.

      If one of the receiver's ancestors is not visible or some other condition makes the receiver not visible, this method may still indicate that it is considered visible even though it may not actually be showing.

      Returns:
      the receiver's visibility state
      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
    • setVisible

      public void setVisible(boolean visible)
      Marks the receiver as visible if the argument is true, and marks it invisible otherwise.

      If one of the receiver's ancestors is not visible or some other condition makes the receiver not visible, marking it visible may not actually cause it to be displayed.

      Parameters:
      visible - the new visibility state
      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
    • getText

      public String getText()
      Returns the receiver's text, which will be an empty string if it has never been set.
      Returns:
      the receiver's 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
    • setText

      public void setText(String text)
      Sets the receiver's text.
      Parameters:
      text - the new text
      Throws:
      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
    • getMessage

      public String getMessage()
      Returns the receiver's message, which will be an empty string if it has never been set.
      Returns:
      the receiver's message
      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
    • setMessage

      public void setMessage(String message)
      Sets the receiver's message.
      Parameters:
      message - the new message
      Throws:
      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
    • setLocation

      public void setLocation(int x, int y)
      Sets the location of the receiver, which must be a tooltip, to the point specified by the arguments which are relative to the display.

      Note that this is different from most widgets where the location of the widget is relative to the parent.

      Parameters:
      x - the new x coordinate for the receiver
      y - the new y coordinate for the receiver
      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
    • setLocation

      public void setLocation(Point location)
      Sets the location of the receiver, which must be a tooltip, to the point specified by the argument which is relative to the display.

      Note that this is different from most widgets where the location of the widget is relative to the parent.

      Note that the platform window manager ultimately has control over the location of tooltips.

      Parameters:
      location - the new location for the receiver
      Throws:
      IllegalArgumentException -
      • ERROR_NULL_ARGUMENT - if the point 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
    • addSelectionListener

      public void addSelectionListener(SelectionListener listener)
      Adds the listener to the collection of listeners who will be notified when the receiver is selected by the user, by sending it one of the messages defined in the SelectionListener interface.

      widgetSelected is called when the receiver is selected. widgetDefaultSelected is not called.

      Parameters:
      listener - the listener which should be notified when the receiver is selected by the user
      Throws:
      IllegalArgumentException -
      • ERROR_NULL_ARGUMENT - if the listener 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
      See Also:
    • removeSelectionListener

      public void removeSelectionListener(SelectionListener listener)
      Removes the listener from the collection of listeners who will be notified when the receiver is selected by the user.
      Parameters:
      listener - the listener which should no longer be notified
      Throws:
      IllegalArgumentException -
      • ERROR_NULL_ARGUMENT - if the listener 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
      See Also:
    • setData

      public void setData(String key, Object value)
      Description copied from class: Widget
      Sets the application defined property of the receiver with the specified name to the given value.

      Applications may associate arbitrary objects with the receiver in this fashion. If the objects stored in the properties need to be notified when the widget is disposed of, it is the application's responsibility to hook the Dispose event on the widget and do so.

      Overrides:
      setData in class Widget
      Parameters:
      key - the name of the property
      value - the new value for the property
      See Also: