NAME

       NewCompCmd,  PrintCmd,  QuitCmd,  RevertCmd,  SaveCompCmd,  SaveCompAsCmd,  ViewCompCmd  -
       catalog-oriented commands

SYNOPSIS

       #include <Unidraw/Commands/catcmds.h>

DESCRIPTION

       The Unidraw library predefines a set of non-interpretive commands that let a user  specify
       components  to  open,  view,  and save, plus commands for generating a PostScript external
       representation and for quitting the application.  NewCompCmd re-initializes  its  editor's
       component  to  let  the user start editing afresh.  If the existing component is modified,
       NewCompCmd prompts the user to save  it.   PrintCmd  generates  a  PostScriptView  of  the
       editor's component and lets the user send it to a file or to a printer.  QuitCmd quits the
       application, prompting the user to save modified components.  RevertCmd lets the user  re-
       open  the  current  component,  discarding changes since it was last saved.  SaveCompAsCmd
       lets the user save a  component  under  a  particular  name,  while  SaveCompCmd  saves  a
       component  named previously.  Finally, ViewCompCmd lets the user specify another component
       to view in its editor.

NEWCOMPCMD PUBLIC OPERATIONS

       NewCompCmd(ControlInfo*, Component* prototype = nil)
       NewCompCmd(Editor* = nil, Component* = nil)
              Create a new NewCompCmd instance, optionally supplying a prototype component.  When
              executed,  NewCompCmd  will  make  its  editor  edit  a copy of the prototype.  The
              editor's original component will be deleted if no other editor refers to it.

       virtual boolean Reversible()
              NewCompCmd is not reversible.

       Component* GetPrototype()
              Return the prototype component specified in the constructor.

PRINTCMD PUBLIC OPERATIONS

       PrintCmd(ControlInfo*, PrintDialog* = nil)
       PrintCmd(Editor* = nil, PrintDialog* = nil)
              Create a new PrintCmd instance, optionally supplying  the  PrintDialog  to  display
              when executed.

       virtual boolean Reversible()
              PrintCmd is not reversible.

PRINTCMD PROTECTED OPERATIONS

       void print(const char* print_cmd, const char* file)
              Concatenates print_cmd and file and calls system(3) on the result.

QUITCMD PUBLIC OPERATIONS

       QuitCmd(ControlInfo*)
       QuitCmd(Editor* = nil)
              Create a new QuitCmd instance.

       virtual boolean Reversible()
              QuitCmd is not reversible.

REVERTCMD PUBLIC OPERATIONS

       RevertCmd(ControlInfo*)
       RevertCmd(Editor* = nil)
              Create a new RevertCmd instance.

       virtual boolean Reversible()
              RevertCmd is not reversible.

SAVECOMPCMD PUBLIC OPERATIONS

       SaveCompCmd(ControlInfo*)
       SaveCompCmd(Editor* = nil)
              Create a new SaveCompCmd instance.

       virtual boolean Reversible()
              SaveCompCmd is not reversible.

SAVECOMPASCMD PUBLIC OPERATIONS

       SaveCompAsCmd(ControlInfo*, FileChooser* = nil)
       SaveCompAsCmd(Editor* = nil, FileChooser* = nil)
              Create a new SaveCompAsCmd instance, optionally supplying the FileChooser that will
              prompt the user to name the component.

       virtual boolean Reversible()
              SaveCompAsCmd is not reversible.

VIEWCOMPCMD PUBLIC OPERATIONS

       ViewCompCmd(ControlInfo*, FileChooser* = nil)
       ViewCompCmd(Editor* = nil, FileChooser* = nil)
              Create a new ViewCompCmd instance, optionally supplying the FileChooser  that  will
              prompt  the  user  to  specify  the  component to view.  After the new component is
              opened successfully, the editor's original component will be deleted  if  no  other
              editor refers to it.

       virtual boolean Reversible()
              ViewCompCmd is not reversible.

SEE ALSO

       BasicDialog(3U), Command(3U), Component(3U), Editor(3U), PostScriptView(3U), lpr(1).