Widget : Made modifier keypresses emit dragMoveSignal() as appropriate.
Widget : Made modifier keypresses emit dragMoveSignal() as appropriate.

This allows drag & drop targets to react to the current modifiers as they change, rather than just read their final values in the drop signal. This allows feedback to be provided to the user.

appleseedhq/gaffer,GafferHQ/gaffer,chippey/gaffer,ImageEngine/gaffer,chippey/gaffer,ImageEngine/gaffer,appleseedhq/gaffer,johnhaddon/gaffer,hradec/gaffer,appleseedhq/gaffer,appleseedhq/gaffer,lucienfostier/gaffer,lucienfostier/gaffer,GafferHQ/gaffer,boberfly/gaffer,johnhaddon/gaffer,ivanimanishi/gaffer,ivanimanishi/gaffer,hradec/gaffer,chippey/gaffer,boberfly/gaffer,andrewkaufman/gaffer,andrewkaufman/gaffer,ImageEngine/gaffer,hradec/gaffer,johnhaddon/gaffer,boberfly/gaffer,ivanimanishi/gaffer,goddardl/gaffer,GafferHQ/gaffer,ImageEngine/gaffer,goddardl/gaffer,lucienfostier/gaffer,goddardl/gaffer,andrewkaufman/gaffer,johnhaddon/gaffer,andrewkaufman/gaffer,hradec/gaffer,ivanimanishi/gaffer,goddardl/gaffer,boberfly/gaffer,lucienfostier/gaffer,johnhaddon/gaffer,hradec/gaffer,andrewkaufman/gaffer,GafferHQ/gaffer,GafferHQ/gaffer,chippey/gaffer