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nsCUPSShim.h
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00001 /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
00002 /* ex: set tabstop=8 softtabstop=4 shiftwidth=4 expandtab: */
00003 /* ***** BEGIN LICENSE BLOCK *****
00004  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00005  *
00006  * The contents of this file are subject to the Mozilla Public License Version
00007  * 1.1 (the "License"); you may not use this file except in compliance with
00008  * the License. You may obtain a copy of the License at
00009  * http://www.mozilla.org/MPL/
00010  *
00011  * Software distributed under the License is distributed on an "AS IS" basis,
00012  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00013  * for the specific language governing rights and limitations under the
00014  * License.
00015  *
00016  * The Original Code is the Mozilla PostScript driver printer list component.
00017  *
00018  * The Initial Developer of the Original Code is
00019  * Kenneth Herron <kherron+mozilla@fmailbox.com>
00020  * Portions created by the Initial Developer are Copyright (C) 2004
00021  * the Initial Developer. All Rights Reserved.
00022  *
00023  * Contributor(s):
00024  *
00025  * Alternatively, the contents of this file may be used under the terms of
00026  * either the GNU General Public License Version 2 or later (the "GPL"), or
00027  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00028  * in which case the provisions of the GPL or the LGPL are applicable instead
00029  * of those above. If you wish to allow use of your version of this file only
00030  * under the terms of either the GPL or the LGPL, and not to allow others to
00031  * use your version of this file under the terms of the MPL, indicate your
00032  * decision by deleting the provisions above and replace them with the notice
00033  * and other provisions required by the GPL or the LGPL. If you do not delete
00034  * the provisions above, a recipient may use your version of this file under
00035  * the terms of any one of the MPL, the GPL or the LGPL.
00036  *
00037  * ***** END LICENSE BLOCK ***** */
00038 
00039 #ifndef nsCUPSShim_h___
00040 #define nsCUPSShim_h___
00041 
00042 #include "prtypes.h"
00043 #include "psSharedCore.h"
00044 
00045 
00046 /* Various CUPS data types. We don't #include cups headers to avoid
00047  * requiring CUPS to be installed on the build host (and to avoid having
00048  * to test for CUPS in configure).
00049  */
00050 typedef struct                          /**** Printer Options ****/
00051 {
00052     char          *name;                  /* Name of option */
00053     char          *value;                 /* Value of option */
00054 } cups_option_t;
00055 
00056 typedef struct               /**** Destination ****/
00057 {
00058     char          *name,       /* Printer or class name */
00059                   *instance;   /* Local instance name or NULL */
00060     int           is_default;  /* Is this printer the default? */
00061     int           num_options; /* Number of options */
00062     cups_option_t *options;    /* Options */
00063 } cups_dest_t;
00064 
00065 typedef cups_dest_t* (PR_CALLBACK *CupsGetDestType)(const char *printer,
00066                                                     const char *instance,
00067                                                     int num_dests, 
00068                                                     cups_dest_t *dests);
00069 typedef int (PR_CALLBACK *CupsGetDestsType)(cups_dest_t **dests);
00070 typedef int (PR_CALLBACK *CupsFreeDestsType)(int         num_dests,
00071                                              cups_dest_t *dests);
00072 typedef int (PR_CALLBACK *CupsPrintFileType)(const char    *printer,
00073                                              const char    *filename,
00074                                              const char    *title,
00075                                              int           num_options,
00076                                              cups_option_t *options);
00077 typedef int (PR_CALLBACK *CupsTempFdType)(char *filename,
00078                                           int   length);
00079 typedef int (PR_CALLBACK *CupsAddOptionType)(const char    *name,
00080                                              const char    *value,
00081                                              int           num_options,
00082                                              cups_option_t **options);
00083 
00084 struct PRLibrary;
00085 
00086 class NS_PSSHARED nsCUPSShim {
00087     public:
00088         nsCUPSShim() : mCupsLib(nsnull) { }
00089         ~nsCUPSShim();
00090 
00099         PRBool Init();
00100 
00105         PRBool IsInitialized() { return nsnull != mCupsLib; }
00106 
00107         /* Function pointers for supported functions. These are only
00108          * valid after successful initialization.
00109          */
00110         CupsAddOptionType   mCupsAddOption;
00111         CupsFreeDestsType   mCupsFreeDests;
00112         CupsGetDestType     mCupsGetDest;
00113         CupsGetDestsType    mCupsGetDests;
00114         CupsPrintFileType   mCupsPrintFile;
00115         CupsTempFdType      mCupsTempFd;
00116 
00117     private:
00118         PRLibrary *mCupsLib;
00119 };
00120 
00121 
00122 
00123 #endif /* nsCUPSShim_h___ */