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194 lines
6.3 KiB
194 lines
6.3 KiB
//C- -------------------------------------------------------------------
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//C- DjVuLibre-3.5
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//C- Copyright (c) 2002 Leon Bottou and Yann Le Cun.
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//C- Copyright (c) 2001 AT&T
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//C-
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//C- This software is subject to, and may be distributed under, the
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//C- GNU General Public License, Version 2. The license should have
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//C- accompanied the software or you may obtain a copy of the license
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//C- from the Free Software Foundation at http://www.fsf.org .
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//C-
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//C- This program is distributed in the hope that it will be useful,
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//C- but WITHOUT ANY WARRANTY; without even the implied warranty of
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//C- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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//C- GNU General Public License for more details.
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//C-
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//C- DjVuLibre-3.5 is derived from the DjVu(r) Reference Library
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//C- distributed by Lizardtech Software. On July 19th 2002, Lizardtech
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//C- Software authorized us to replace the original DjVu(r) Reference
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//C- Library notice by the following text (see doc/lizard2002.djvu):
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//C-
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//C- ------------------------------------------------------------------
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//C- | DjVu (r) Reference Library (v. 3.5)
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//C- | Copyright (c) 1999-2001 LizardTech, Inc. All Rights Reserved.
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//C- | The DjVu Reference Library is protected by U.S. Pat. No.
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//C- | 6,058,214 and patents pending.
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//C- |
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//C- | This software is subject to, and may be distributed under, the
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//C- | GNU General Public License, Version 2. The license should have
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//C- | accompanied the software or you may obtain a copy of the license
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//C- | from the Free Software Foundation at http://www.fsf.org .
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//C- |
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//C- | The computer code originally released by LizardTech under this
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//C- | license and unmodified by other parties is deemed "the LIZARDTECH
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//C- | ORIGINAL CODE." Subject to any third party intellectual property
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//C- | claims, LizardTech grants recipient a worldwide, royalty-free,
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//C- | non-exclusive license to make, use, sell, or otherwise dispose of
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//C- | the LIZARDTECH ORIGINAL CODE or of programs derived from the
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//C- | LIZARDTECH ORIGINAL CODE in compliance with the terms of the GNU
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//C- | General Public License. This grant only confers the right to
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//C- | infringe patent claims underlying the LIZARDTECH ORIGINAL CODE to
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//C- | the extent such infringement is reasonably necessary to enable
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//C- | recipient to make, have made, practice, sell, or otherwise dispose
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//C- | of the LIZARDTECH ORIGINAL CODE (or portions thereof) and not to
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//C- | any greater extent that may be necessary to utilize further
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//C- | modifications or combinations.
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//C- |
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//C- | The LIZARDTECH ORIGINAL CODE is provided "AS IS" WITHOUT WARRANTY
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//C- | OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
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//C- | TO ANY WARRANTY OF NON-INFRINGEMENT, OR ANY IMPLIED WARRANTY OF
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//C- | MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
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//C- +------------------------------------------------------------------
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//
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// $Id: DjVuErrorList.h,v 1.9 2003/11/07 22:08:20 leonb Exp $
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// $Name: release_3_5_15 $
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#ifndef _DJVUERRORLIST_H
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#define _DJVUERRORLIST_H
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#if NEED_GNUG_PRAGMAS
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# pragma interface
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#endif
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#include "DjVuPort.h"
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#ifdef HAVE_NAMESPACES
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namespace DJVU {
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# ifdef NOT_DEFINED // Just to fool emacs c++ mode
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}
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#endif
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#endif
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class ByteStream;
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/** @name DjVuErrorList.h
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This file implements a very simple class for redirecting port caster
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messages that would normally end up on stderr to a double linked list.
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@memo DjVuErrorList class.
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@author Bill C Riemers <docbill@sourceforge.net>
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@version #$Id: DjVuErrorList.h,v 1.9 2003/11/07 22:08:20 leonb Exp $#
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*/
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//@{
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/** #DjVuErrorList# provides a convenient way to redirect error messages
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from classes derived from DjVuPort to a list that can be accessed at
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any time. */
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class DjVuErrorList : public DjVuSimplePort
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{
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protected:
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/// The normal port caster constructor.
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DjVuErrorList(void);
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public:
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static GP<DjVuErrorList> create(void) {return new DjVuErrorList();}
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/// This constructor allows the user to specify the ByteStream.
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GURL set_stream(GP<ByteStream>);
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/// Append all error messages to the list
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virtual bool notify_error(const DjVuPort * source, const GUTF8String & msg);
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/// Append all status messages to the list
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virtual bool notify_status(const DjVuPort * source, const GUTF8String & msg);
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/// Add a new class to have its messages redirected here.
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inline void connect( const DjVuPort &port);
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/// Get the listing of errors, and clear the list.
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inline GList<GUTF8String> GetErrorList(void);
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/// Just clear the list.
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inline void ClearError(void);
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/// Get one error message and clear that message from the list.
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GUTF8String GetError(void);
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/// Check if there are anymore error messages.
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inline bool HasError(void) const;
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/// Get the listing of status messages, and clear the list.
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inline GList<GUTF8String> GetStatusList(void);
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/// Just clear the list.
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inline void ClearStatus(void);
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/// Get one status message and clear that message from the list.
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GUTF8String GetStatus(void);
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/// Check if there are any more status messages.
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inline bool HasStatus(void) const;
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/** This gets the data. We can't use the simple port's request
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data since we want to allow the user to specify the ByteStream. */
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virtual GP<DataPool> request_data (
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const DjVuPort * source, const GURL & url );
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private:
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GURL pool_url;
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GP<DataPool> pool;
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GList<GUTF8String> Errors;
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GList<GUTF8String> Status;
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private: //dummy stuff
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static GURL set_stream(ByteStream *);
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};
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inline void
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DjVuErrorList::connect( const DjVuPort &port )
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{ get_portcaster()->add_route(&port, this); }
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inline GList<GUTF8String>
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DjVuErrorList::GetErrorList(void)
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{
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GList<GUTF8String> retval=(const GList<GUTF8String>)Errors;
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Errors.empty();
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return retval;
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}
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inline void
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DjVuErrorList::ClearError(void)
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{ Errors.empty(); }
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inline GList<GUTF8String>
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DjVuErrorList::GetStatusList(void)
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{
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GList<GUTF8String> retval=(const GList<GUTF8String>)Status;
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Status.empty();
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return retval;
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}
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inline void
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DjVuErrorList::ClearStatus(void)
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{ Status.empty(); }
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inline bool
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DjVuErrorList::HasError(void) const
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{ return !Errors.isempty(); }
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inline bool
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DjVuErrorList::HasStatus(void) const
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{ return !Status.isempty(); }
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#ifdef HAVE_NAMESPACES
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}
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# ifndef NOT_USING_DJVU_NAMESPACE
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using namespace DJVU;
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# endif
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#endif
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#endif
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