GTreeDragNDropHandler

All Superinterfaces:: GTreeTransferHandler

All Known Implementing Classes:: DataTreeDragNDropHandler

public interface GTreeDragNDropHandler extends GTreeTransferHandler

Method Summary

Modifier and Type

Method

Description

void

drop(GTreeNode destUserData, Transferable transferable, int dropAction)

Add the given transferable's data to the destination user data.

int

getSupportedDragActions()

Returns the supported Drag actions for this tree.

boolean

isDropSiteOk(GTreeNode destUserData, DataFlavor[] flavors, int dropAction)

Return true if the drop site is valid for the given target.

boolean

isStartDragOk(List<GTreeNode> dragUserData, int dragAction)

Return true if the dragUserData can be dragged.

Methods inherited from interface docking.widgets.tree.support.GTreeTransferHandler
getSupportedDataFlavors, getTransferData

Method Details
- isStartDragOk
  
  boolean isStartDragOk(List<GTreeNode> dragUserData, int dragAction)
  
  Return true if the dragUserData can be dragged.
  
  Parameters:
  
  dragUserData - data where user is initiating the drag operation
  
  dragAction - user action for the drag operation
  
  Returns:
  
  true if the dragUserData can be dragged
- getSupportedDragActions
  
  int getSupportedDragActions()
  
  Returns the supported Drag actions for this tree. For available actions see DnDConstants.
  
  Returns:
  
  the supported Drag actions.
- isDropSiteOk
  
  boolean isDropSiteOk(GTreeNode destUserData, DataFlavor[] flavors, int dropAction)
  
  Return true if the drop site is valid for the given target.
  
  Parameters:
  
  destUserData - destination for node being dragged
  
  flavors - flavor(s) being dragged
  
  dropAction - user action for drop operation
  
  Returns:
  
  true if the drop site is valid for the given target
- drop
  
  void drop(GTreeNode destUserData, Transferable transferable, int dropAction)
  
  Add the given transferable's data to the destination user data.
  
  Parameters:
  
  destUserData - destination node for the data.
  
  transferable - the transferable being dragged whose data will be dropped.
  
  dropAction - user action for drop operation