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 exter-
       nal representation and for quitting the application.  New-
       CompCmd 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.   Print-
       Cmd  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 sup-
              plying a prototype component.  When executed,  New-
              CompCmd  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  supply-
              ing 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)

       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  sup-
              plying the FileChooser that will prompt the user to
              specify the component to view.  After the new  com-
              ponent  is opened successfully, the editor's origi-
              nal 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).