Package org.eclipse.swt.dnd

Class TableDropTargetEffect

  • All Implemented Interfaces:
    EventListener, DropTargetListener, SWTEventListener
    public class TableDropTargetEffect
extends DropTargetEffect
    This class provides a default drag under effect (eg. select, insert and scroll) when a drag occurs over a Table.

    Classes that wish to provide their own drag under effect for a Table can extend the TableDropTargetEffect and override any applicable methods in TableDropTargetEffect to display their own drag under effect.

    Subclasses that override any methods of this class must call the corresponding super method to get the default drag under effect implementation.

    The feedback value is either one of the FEEDBACK constants defined in class DND which is applicable to instances of this class, or it must be built by bitwise OR'ing together (that is, using the int "|" operator) two or more of those DND effect constants.

    Feedback:
    FEEDBACK_SELECT, FEEDBACK_SCROLL
    Since:
    3.3
    See Also:
    DropTargetAdapter, DropTargetEvent, Sample code and further information

    • Constructor Detail

      • TableDropTargetEffect

        public TableDropTargetEffect​(Table table)
        Creates a new TableDropTargetEffect to handle the drag under effect on the specified Table.
        Parameters:
        table - the Table over which the user positions the cursor to drop the data

    • Method Detail

      • dragEnter

        public void dragEnter​(DropTargetEvent event)
        This implementation of dragEnter provides a default drag under effect for the feedback specified in event.feedback. For additional information see DropTargetAdapter.dragEnter. Subclasses that override this method should call super.dragEnter(event) to get the default drag under effect implementation.
        Specified by:
        dragEnter in interface DropTargetListener
        Overrides:
        dragEnter in class DropTargetAdapter
        Parameters:
        event - the information associated with the drag enter event
        See Also:
        DropTargetAdapter, DropTargetEvent

      • dragLeave

        public void dragLeave​(DropTargetEvent event)
        This implementation of dragLeave provides a default drag under effect for the feedback specified in event.feedback. For additional information see DropTargetAdapter.dragLeave. Subclasses that override this method should call super.dragLeave(event) to get the default drag under effect implementation.
        Specified by:
        dragLeave in interface DropTargetListener
        Overrides:
        dragLeave in class DropTargetAdapter
        Parameters:
        event - the information associated with the drag leave event
        See Also:
        DropTargetAdapter, DropTargetEvent

      • dragOver

        public void dragOver​(DropTargetEvent event)
        This implementation of dragOver provides a default drag under effect for the feedback specified in event.feedback. The class description lists the FEEDBACK constants that are applicable to the class. For additional information see DropTargetAdapter.dragOver. Subclasses that override this method should call super.dragOver(event) to get the default drag under effect implementation.
        Specified by:
        dragOver in interface DropTargetListener
        Overrides:
        dragOver in class DropTargetAdapter
        Parameters:
        event - the information associated with the drag over event
        See Also:
        DropTargetAdapter, DropTargetEvent, DND.FEEDBACK_SELECT, DND.FEEDBACK_SCROLL