|virtual void||findLassoItemsInArea (Array< SelectableItemType > &itemsFound, const Rectangle< int > &area)=0|
|Returns the set of items that lie within a given lassoable region. |
< SelectableItemType > &
|Returns the SelectedItemSet that the lasso should update. |
A class used by the LassoComponent to manage the things that it selects.
This allows the LassoComponent to find out which items are within the lasso, and to change the list of selected items.
Returns the set of items that lie within a given lassoable region.
Your implementation of this method must find all the relevent items that lie within the given rectangle. and add them to the itemsFound array.
The coordinates are relative to the top-left of the lasso component's parent component. (i.e. they are the same as the size and position of the lasso component itself).
Returns the SelectedItemSet that the lasso should update.
This set will be continuously updated by the LassoComponent as it gets dragged around, so make sure that you've got a ChangeListener attached to the set so that your UI objects will know when the selection changes and be able to update themselves appropriately.
Referenced by LassoComponent< SelectableItemType >::beginLasso().