зеркало из https://github.com/mozilla/pjs.git
120 строки
5.0 KiB
C++
120 строки
5.0 KiB
C++
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* ex: set tabstop=8 softtabstop=4 shiftwidth=4 expandtab: */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is the Mozilla PostScript driver printer list component.
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*
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* The Initial Developer of the Original Code is
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* Kenneth Herron <kherron+mozilla@fmailbox.com>
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* Portions created by the Initial Developer are Copyright (C) 2004
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef nsCUPSShim_h___
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#define nsCUPSShim_h___
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#include "prtypes.h"
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/* Various CUPS data types. We don't #include cups headers to avoid
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* requiring CUPS to be installed on the build host (and to avoid having
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* to test for CUPS in configure).
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*/
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typedef struct /**** Printer Options ****/
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{
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char *name; /* Name of option */
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char *value; /* Value of option */
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} cups_option_t;
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typedef struct /**** Destination ****/
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{
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char *name, /* Printer or class name */
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*instance; /* Local instance name or NULL */
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int is_default; /* Is this printer the default? */
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int num_options; /* Number of options */
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cups_option_t *options; /* Options */
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} cups_dest_t;
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typedef cups_dest_t* (PR_CALLBACK *CupsGetDestType)(const char *printer,
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const char *instance,
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int num_dests,
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cups_dest_t *dests);
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typedef int (PR_CALLBACK *CupsGetDestsType)(cups_dest_t **dests);
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typedef int (PR_CALLBACK *CupsFreeDestsType)(int num_dests,
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cups_dest_t *dests);
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typedef int (PR_CALLBACK *CupsPrintFileType)(const char *printer,
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const char *filename,
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const char *title,
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int num_options,
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cups_option_t *options);
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typedef int (PR_CALLBACK *CupsTempFdType)(char *filename,
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int length);
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typedef int (PR_CALLBACK *CupsAddOptionType)(const char *name,
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const char *value,
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int num_options,
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cups_option_t **options);
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struct PRLibrary;
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/* Note: this class relies on static initialization. */
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class nsCUPSShim {
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public:
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/**
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* Initialize this object. Attempt to load the CUPS shared
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* library and find function pointers for the supported
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* functions (see below).
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* @return false if the shared library could not be loaded, or if
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* any of the functions could not be found.
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* true for successful initialization.
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*/
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bool Init();
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/**
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* @return true if the object was initialized successfully.
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* false otherwise.
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*/
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bool IsInitialized() { return nsnull != mCupsLib; }
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/* Function pointers for supported functions. These are only
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* valid after successful initialization.
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*/
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CupsAddOptionType mCupsAddOption;
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CupsFreeDestsType mCupsFreeDests;
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CupsGetDestType mCupsGetDest;
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CupsGetDestsType mCupsGetDests;
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CupsPrintFileType mCupsPrintFile;
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CupsTempFdType mCupsTempFd;
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private:
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PRLibrary *mCupsLib;
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};
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#endif /* nsCUPSShim_h___ */
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