NAME

       MagnifyTool - tool for magnifying a portion of the GraphicView displayed in a viewer

SYNOPSIS

       #include <Unidraw/Tools/magnify.h>

DESCRIPTION

       MagnifyTool  lets  the  user magnify a portion a viewer's contents.  The user sweeps out a
       rectangular area with the MagnifyTool, and the viewer will magnify the area to occupy  the
       entire screen, if possible.

PUBLIC OPERATIONS

       MagnifyTool(ControlInfo* = nil)
              Instantiate a MagnifyTool.

       virtual Manipulator* CreateManipulator(
          Viewer*, Event&, Transformer*
       )

       virtual void InterpretManipulator(Manipulator*)
              CreateManipulator  generates  a  DragManip  with  a  RubberRect  to  provide visual
              feedback for specifying the rectangular area to be magnified.  InterpretManipulator
              does not create a command; rather, it examines the DragManipulator's RubberRect and
              calls Magnify on the viewer with the RubberRect's final coordinates.

SEE ALSO

       Rubband(3I), Tool(3U), Viewer(3U), manips(3U)