NAME

       BackCmd, FrontCmd, GroupCmd, UngroupCmd - commands for modifying components structurally

SYNOPSIS

       #include <Unidraw/Commands/struct.h>

DESCRIPTION

       BackCmd,  FrontCmd,  GroupCmd, and UngroupCmd are purely interpretive commands for altering the structure
       of their editor's component.  All redefine their Execute and Unexecute operations  to  let  the  editor's
       component interpret them as it wishes.

BACKCMD PUBLIC OPERATIONS

       BackCmd(ControlInfo*)
       BackCmd(Editor* = nil)
              Construct a new BackCmd.

FRONTCMD PUBLIC OPERATIONS

       FrontCmd(ControlInfo*)
       FrontCmd(Editor* = nil)
              Construct a new FrontCmd.

GROUPCMD PUBLIC OPERATIONS

       GroupCmd(ControlInfo*, GraphicComp* = nil)
       GroupCmd(Editor* = nil, GraphicComp* = nil)
              Create a new GroupCmd, optionally specifying the component into which components will be grouped.

       virtual void Execute()
       virtual void Unexecute()
              Execute  will set the value of the _executed protected member variable to true as a side effect if
              anything was grouped.  Similarly, Unexecute will set reset the value to false as a side effect the
              operation was undone.

       GraphicComp* GetGroup()
       void SetGroup(GraphicComp*)
              Get or set the component into which components will be grouped.  SetGroup will not delete the  old
              value.

UNGROUPCMD PUBLIC OPERATIONS

       UngroupCmd(ControlInfo*)
       UngroupCmd(Editor* = nil)
              Construct a new UngroupCmd.

       virtual void Execute()
       virtual void Unexecute()
              Execute  will set the value of the _executed protected member variable to true as a side effect if
              anything was ungrouped.  Similarly, Unexecute will set reset the value to false as a  side  effect
              the operation was undone.

       Clipboard* GetKids()
       void SetKids(Clipboard*)
              Explicitly  set  and get a clipboard containing the child components that were ungrouped, which is
              stored in the _kids protected member.  UngroupCmd does  not  initialize  this  member;  it  merely
              provides the storage as a convenience to components that interpret the command and need a place to
              store  the  ungrouped  children  to  support  reverse  execution.  However, UngroupCmd deletes the
              clipboard (if it exists) in ~UngroupCmd. SetKids will not delete the old value.

SEE ALSO

       Command(3U), GraphicComp(3U)

Unidraw                                          24 January 1991                                      struct(3U)