Class StyledTextDropTargetEffect

  • All Implemented Interfaces:
    EventListener, DropTargetListener, SWTEventListener

    public class StyledTextDropTargetEffect
    extends DropTargetEffect
    This adapter class provides a default drag under effect (eg. select and scroll) when a drag occurs over a StyledText.

    Classes that wish to provide their own drag under effect for a StyledText can extend this class, override the StyledTextDropTargetEffect.dragOver method and override any other applicable methods in StyledTextDropTargetEffect to display their own drag under effect.

    Subclasses that override any methods of this class should 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

      • StyledTextDropTargetEffect

        public StyledTextDropTargetEffect​(StyledText styledText)
        Creates a new StyledTextDropTargetEffect to handle the drag under effect on the specified StyledText.
        Parameters:
        styledText - the StyledText 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 start 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
      • dropAccept

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