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org.eclipse.gef.handles
Class AbstractHandle
java.lang.Object
org.eclipse.draw2d.Figure
org.eclipse.gef.handles.AbstractHandle
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All Implemented Interfaces:
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AncestorListener,
Handle,
IFigure
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Direct Known Subclasses:
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MoveHandle,
SquareHandle
- public abstract class AbstractHandle
- extends
Figure
- implements
Handle,
AncestorListener
Base implementation for handles. This class keeps track of the typical data needed by
a handle, such as a drag tracker, a locator to place the handle, a cursor, and the
editpart to which the handle belongs. AbstractHandle will add an
AncestorListener to the owner's figure, and will automatically revalidate this handle
whenever the owner's figure moves.
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Fields inherited from class org.eclipse.draw2d.
Figure
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bgColor,
border,
bounds,
fgColor,
flags,
font,
MAX_FLAG,
maxSize,
minSize,
NO_MANAGER,
prefSize,
toolTip
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Methods inherited from class org.eclipse.draw2d.
Figure
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add,
add,
add,
add,
addAncestorListener,
addCoordinateListener,
addFigureListener,
addFocusListener,
addKeyListener,
addLayoutListener,
addListener,
addMouseListener,
addMouseMotionListener,
addPropertyChangeListener,
addPropertyChangeListener,
containsPoint,
containsPoint,
erase,
findDescendantAtExcluding,
findFigureAt,
findFigureAt,
findFigureAt,
findFigureAtExcluding,
findMouseEventTargetAt,
findMouseEventTargetInDescendantsAt,
fireCoordinateSystemChanged,
fireFigureMoved,
fireMoved,
firePropertyChange,
firePropertyChange,
firePropertyChange,
getBackgroundColor,
getBorder,
getBounds,
getChildren,
getClientArea,
getClientArea,
getCursor,
getFlag,
getFont,
getForegroundColor,
getInsets,
getLayoutManager,
getListeners,
getLocalBackgroundColor,
getLocalFont,
getLocalForegroundColor,
getLocation,
getMaximumSize,
getMinimumSize,
getMinimumSize,
getParent,
getPreferredSize,
getPreferredSize,
getSize,
getToolTip,
getUpdateManager,
handleFocusGained,
handleFocusLost,
handleKeyPressed,
handleKeyReleased,
handleMouseDoubleClicked,
handleMouseDragged,
handleMouseEntered,
handleMouseExited,
handleMouseHover,
handleMouseMoved,
handleMousePressed,
handleMouseReleased,
hasFocus,
internalGetEventDispatcher,
intersects,
invalidate,
invalidateTree,
isCoordinateSystem,
isEnabled,
isFocusTraversable,
isMirrored,
isMouseEventTarget,
isOpaque,
isRequestFocusEnabled,
isShowing,
isValid,
isValidationRoot,
isVisible,
layout,
paint,
paintBorder,
paintChildren,
paintClientArea,
paintFigure,
primTranslate,
remove,
removeAll,
removeAncestorListener,
removeCoordinateListener,
removeFigureListener,
removeFocusListener,
removeKeyListener,
removeLayoutListener,
removeListener,
removeMouseListener,
removeMouseMotionListener,
removePropertyChangeListener,
removePropertyChangeListener,
repaint,
repaint,
repaint,
requestFocus,
revalidate,
setBackgroundColor,
setBorder,
setBounds,
setChildrenDirection,
setChildrenEnabled,
setChildrenOrientation,
setConstraint,
setCursor,
setEnabled,
setFlag,
setFocusTraversable,
setFont,
setForegroundColor,
setLayoutManager,
setLocation,
setMaximumSize,
setMinimumSize,
setOpaque,
setParent,
setPreferredSize,
setPreferredSize,
setRequestFocusEnabled,
setSize,
setSize,
setToolTip,
setValid,
setVisible,
translate,
translateFromParent,
translateToAbsolute,
translateToParent,
translateToRelative,
useLocalCoordinates
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Methods inherited from class java.lang.Object
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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AbstractHandle
public AbstractHandle()
- Null constructor
AbstractHandle
public AbstractHandle(
GraphicalEditPart owner,
Locator loc)
- Creates a handle for the given
GraphicalEditPart using the given
Locator.
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Parameters:
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owner - The editpart which provided this handle -
loc - The locator to position the handle
AbstractHandle
public AbstractHandle(
GraphicalEditPart owner,
Locator loc,
Cursor c)
- Creates a handle for the given
GraphicalEditPart using the given
Locator and Cursor.
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Parameters:
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owner - The editpart which provided this handle -
loc - The locator to position the handle -
c - The cursor to display when the mouse is over the handle
addNotify
public void addNotify()
- Adds this as an
AncestorListener to the owner's
Figure.
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Specified by:
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addNotify
in interface
IFigure
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ancestorMoved
public void ancestorMoved(
IFigure ancestor)
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Specified by:
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ancestorMoved
in interface
AncestorListener
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See Also:
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AncestorListener.ancestorMoved(org.eclipse.draw2d.IFigure)
ancestorAdded
public void ancestorAdded(
IFigure ancestor)
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Specified by:
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ancestorAdded
in interface
AncestorListener
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See Also:
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AncestorListener.ancestorAdded(org.eclipse.draw2d.IFigure)
ancestorRemoved
public void ancestorRemoved(
IFigure ancestor)
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Specified by:
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ancestorRemoved
in interface
AncestorListener
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See Also:
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AncestorListener.ancestorRemoved(org.eclipse.draw2d.IFigure)
createDragTracker
protected abstract
DragTracker createDragTracker()
- Creates a new drag tracker to be returned by getDragTracker().
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Returns:
- a new drag tracker
getAccessibleLocation
public
Point getAccessibleLocation()
- By default, the center of the handle is returned.
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Specified by:
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getAccessibleLocation
in interface
Handle
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Returns:
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null or the absolute location -
See Also:
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Handle.getAccessibleLocation()
getDragCursor
public Cursor getDragCursor()
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Deprecated. use getCursor()
- Returns the cursor. The cursor is displayed whenever the mouse is over the handle.
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Returns:
- the cursor
getDragTracker
public
DragTracker getDragTracker()
- Returns the drag tracker to use when the user clicks on this handle. If the drag
tracker has not been set, it will be lazily created by calling
createDragTracker().
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Specified by:
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getDragTracker
in interface
Handle
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Returns:
- the drag tracker
getLocator
public
Locator getLocator()
- Returns the
Locator used to position this handle.
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Returns:
- the locator
getOwner
protected
GraphicalEditPart getOwner()
- Returns the
GraphicalEditPart associated with this handle.
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Returns:
- the owner editpart
getOwnerFigure
protected
IFigure getOwnerFigure()
- Convenience method to return the owner's figure.
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Returns:
- the owner editpart's figure
removeNotify
public void removeNotify()
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Specified by:
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removeNotify
in interface
IFigure
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See Also:
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IFigure.removeNotify()
setDragCursor
public void setDragCursor(Cursor c)
throws java.lang.Exception
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Deprecated. use setCursor()
- Sets the Cursor for the handle.
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Parameters:
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c - the cursor
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Throws:
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java.lang.Exception - a bogus excpetion declaration
setDragTracker
public void setDragTracker(
DragTracker t)
- Sets the drag tracker for this handle.
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Parameters:
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t - the drag tracker
setLocator
protected void setLocator(
Locator locator)
- Sets the locator which position this handle.
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Parameters:
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locator - the new locator
setOwner
protected void setOwner(
GraphicalEditPart editpart)
- Sets the owner editpart associated with this handle.
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Parameters:
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editpart - the owner
validate
public void validate()
- Extends validate() to place the handle using its locator.
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Specified by:
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validate
in interface
IFigure
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See Also:
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IFigure.validate()
Copyright (c) IBM Corp. and others 2000, 2007. All Rights Reserved.
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