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2193 lines
68 KiB
2193 lines
68 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: DjVuDocEditor.cpp,v 1.13 2005/05/25 20:24:52 leonb Exp $
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// $Name: release_3_5_15 $
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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 implementation
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#endif
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#include "DjVuDocEditor.h"
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#include "DjVuImage.h"
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#include "IFFByteStream.h"
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#include "DataPool.h"
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#include "IW44Image.h"
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#include "GOS.h"
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#include "GURL.h"
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#include "DjVuAnno.h"
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#include "GRect.h"
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#include "DjVmNav.h"
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#include "debug.h"
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#include <ctype.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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static const char octets[4]={0x41,0x54,0x26,0x54};
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int DjVuDocEditor::thumbnails_per_file=10;
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// This is a structure for active files and DataPools. It may contain
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// a DjVuFile, which is currently being used by someone (I check the list
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// and get rid of hanging files from time to time) or a DataPool,
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// which is "custom" with respect to the document (was modified or
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// inserted), or both.
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//
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// DjVuFile is set to smth!=0 when it's created using url_to_file().
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// It's reset back to ZERO in clean_files_map() when
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// it sees, that a given file is not used by anyone.
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// DataPool is updated when a file is inserted
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class DjVuDocEditor::File : public GPEnabled
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{
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public:
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// 'pool' below may be non-zero only if it cannot be retrieved
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// by the DjVuDocument, that is it either corresponds to a
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// modified DjVuFile or it has been inserted. Otherwise it's ZERO
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// Once someone assigns a non-zero DataPool, it remains non-ZERO
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// (may be updated if the file gets modified) and may be reset
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// only by save() or save_as() functions.
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GP<DataPool> pool;
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// If 'file' is non-zero, it means, that it's being used by someone
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// We check for unused files from time to time and ZERO them.
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// But before we do it, we may save the DataPool in the case if
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// file has been modified.
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GP<DjVuFile> file;
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};
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void
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DjVuDocEditor::check(void)
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{
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if (!initialized) G_THROW( ERR_MSG("DjVuDocEditor.not_init") );
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}
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DjVuDocEditor::DjVuDocEditor(void)
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{
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initialized=false;
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refresh_cb=0;
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refresh_cl_data=0;
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}
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DjVuDocEditor::~DjVuDocEditor(void)
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{
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if (!tmp_doc_url.is_empty())
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{
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tmp_doc_url.deletefile();
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}
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GCriticalSectionLock lock(&thumb_lock);
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thumb_map.empty();
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DataPool::close_all();
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}
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void
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DjVuDocEditor::init(void)
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{
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DEBUG_MSG("DjVuDocEditor::init() called\n");
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DEBUG_MAKE_INDENT(3);
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// If you remove this check be sure to delete thumb_map
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if (initialized) G_THROW( ERR_MSG("DjVuDocEditor.init") );
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doc_url=GURL::Filename::UTF8("noname.djvu");
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const GP<DjVmDoc> doc(DjVmDoc::create());
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const GP<ByteStream> gstr(ByteStream::create());
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doc->write(gstr);
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gstr->seek(0, SEEK_SET);
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doc_pool=DataPool::create(gstr);
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orig_doc_type=UNKNOWN_TYPE;
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orig_doc_pages=0;
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initialized=true;
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DjVuDocument::init(doc_url, this);
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}
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void
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DjVuDocEditor::init(const GURL &url)
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{
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DEBUG_MSG("DjVuDocEditor::init() called: url='" << url << "'\n");
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DEBUG_MAKE_INDENT(3);
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// If you remove this check be sure to delete thumb_map
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if (initialized)
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G_THROW( ERR_MSG("DjVuDocEditor.init") );
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// First - create a temporary DjVuDocument and check its type
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doc_pool=DataPool::create(url);
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doc_url=url;
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const GP<DjVuDocument> tmp_doc(DjVuDocument::create_wait(doc_url,this));
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if (!tmp_doc->is_init_ok())
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G_THROW( ERR_MSG("DjVuDocEditor.open_fail") "\t" +url.get_string());
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orig_doc_type=tmp_doc->get_doc_type();
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orig_doc_pages=tmp_doc->get_pages_num();
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if (orig_doc_type==OLD_BUNDLED ||
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orig_doc_type==OLD_INDEXED ||
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orig_doc_type==SINGLE_PAGE)
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{
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// Suxx. I need to convert it NOW.
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// We will unlink this file in the destructor
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tmp_doc_url=GURL::Filename::Native(tmpnam(0));
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const GP<ByteStream> gstr(ByteStream::create(tmp_doc_url, "wb"));
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tmp_doc->write(gstr, true); // Force DJVM format
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gstr->flush();
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doc_pool=DataPool::create(tmp_doc_url);
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}
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// OK. Now doc_pool contains data of the document in one of the
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// new formats. It will be a lot easier to insert/delete pages now.
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// 'doc_url' below of course doesn't refer to the file with the converted
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// data, but we will take care of it by redirecting the request_data().
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initialized=true;
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DjVuDocument::init(doc_url, this);
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// Cool. Now extract the thumbnails...
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GCriticalSectionLock lock(&thumb_lock);
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int pages_num=get_pages_num();
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for(int page_num=0;page_num<pages_num;page_num++)
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{
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// Call DjVuDocument::get_thumbnail() here to bypass logic
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// of DjVuDocEditor::get_thumbnail(). init() is the only safe
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// place where we can still call DjVuDocument::get_thumbnail();
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const GP<DataPool> pool(DjVuDocument::get_thumbnail(page_num, true));
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if (pool)
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{
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thumb_map[page_to_id(page_num)]=pool;
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}
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}
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// And remove then from DjVmDir so that DjVuDocument
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// does not try to use them
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unfile_thumbnails();
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}
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GP<DataPool>
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DjVuDocEditor::request_data(const DjVuPort * source, const GURL & url)
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{
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DEBUG_MSG("DjVuDocEditor::request_data(): url='" << url << "'\n");
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DEBUG_MAKE_INDENT(3);
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// Check if we have either original data or converted (to new format),
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// if all the story is about the DjVuDocument's data
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if (url==doc_url)
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return doc_pool;
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// Now see if we have any file matching the url
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const GP<DjVmDir::File> frec(djvm_dir->name_to_file(url.fname()));
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if (frec)
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{
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GCriticalSectionLock lock(&files_lock);
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GPosition pos;
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if (files_map.contains(frec->get_load_name(), pos))
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{
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const GP<File> f(files_map[pos]);
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if (f->file && f->file->get_init_data_pool())
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return f->file->get_init_data_pool();// Favor DjVuFile's knowledge
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else if (f->pool) return f->pool;
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}
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}
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// Finally let DjVuDocument cope with it. It may be a connected DataPool
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// for a BUNDLED format. Or it may be a file. Anyway, it was not
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// manually included, so it should be in the document.
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const GP<DataPool> pool(DjVuDocument::request_data(source, url));
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// We do NOT update the 'File' structure, because our rule is that
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// we keep a separate copy of DataPool in 'File' only if it cannot
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// be retrieved from DjVuDocument (like it has been "inserted" or
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// corresponds to a modified file).
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return pool;
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}
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void
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DjVuDocEditor::clean_files_map(void)
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// Will go thru the map of files looking for unreferenced
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// files or records w/o DjVuFile and DataPool.
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// These will be modified and/or removed.
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{
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DEBUG_MSG("DjVuDocEditor::clean_files_map() called\n");
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DEBUG_MAKE_INDENT(3);
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GCriticalSectionLock lock(&files_lock);
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// See if there are too old items in the "cache", which are
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// not referenced by anyone. If the corresponding DjVuFile has been
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// modified, obtain the new data and replace the 'pool'. Clear the
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// DjVuFile anyway. If both DataPool and DjVuFile are zero, remove
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// the entry.
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for(GPosition pos=files_map;pos;)
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{
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const GP<File> f(files_map[pos]);
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if (f->file && f->file->get_count()==1)
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{
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DEBUG_MSG("ZEROing file '" << f->file->get_url() << "'\n");
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if (f->file->is_modified())
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f->pool=f->file->get_djvu_data(false);
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f->file=0;
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}
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if (!f->file && !f->pool)
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{
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DEBUG_MSG("Removing record '" << files_map.key(pos) << "'\n");
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GPosition this_pos=pos;
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++pos;
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files_map.del(this_pos);
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} else ++pos;
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}
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}
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GP<DjVuFile>
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DjVuDocEditor::url_to_file(const GURL & url, bool dont_create) const
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{
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DEBUG_MSG("DjVuDocEditor::url_to_file(): url='" << url << "'\n");
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DEBUG_MAKE_INDENT(3);
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// Check if have a DjVuFile with this url cached (created before
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// and either still active or left because it has been modified)
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GP<DjVmDir::File> frec;
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if((const DjVmDir *)djvm_dir)
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frec=djvm_dir->name_to_file(url.fname());
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if (frec)
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{
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GCriticalSectionLock lock(&(const_cast<DjVuDocEditor *>(this)->files_lock));
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GPosition pos;
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if (files_map.contains(frec->get_load_name(), pos))
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{
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const GP<File> f(files_map[pos]);
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if (f->file)
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return f->file;
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}
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}
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const_cast<DjVuDocEditor *>(this)->clean_files_map();
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// We don't have the file cached. Let DjVuDocument create the file.
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const GP<DjVuFile> file(DjVuDocument::url_to_file(url, dont_create));
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// And add it to our private "cache"
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if (file && frec)
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{
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GCriticalSectionLock lock(&(const_cast<DjVuDocEditor *>(this)->files_lock));
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GPosition pos;
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if (files_map.contains(frec->get_load_name(), pos))
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{
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files_map[frec->get_load_name()]->file=file;
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}else
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{
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const GP<File> f(new File());
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f->file=file;
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const_cast<DjVuDocEditor *>(this)->files_map[frec->get_load_name()]=f;
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}
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}
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return file;
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}
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GUTF8String
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DjVuDocEditor::page_to_id(int page_num) const
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{
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if (page_num<0 || page_num>=get_pages_num())
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G_THROW( ERR_MSG("DjVuDocEditor.page_num") "\t"+GUTF8String(page_num));
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const GP<DjVmDir::File> f(djvm_dir->page_to_file(page_num));
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if (! f)
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G_THROW( ERR_MSG("DjVuDocEditor.page_num") "\t"+GUTF8String(page_num));
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return f->get_load_name();
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}
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GUTF8String
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DjVuDocEditor::find_unique_id(GUTF8String id)
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{
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const GP<DjVmDir> dir(get_djvm_dir());
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GUTF8String base, ext;
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const int dot=id.rsearch('.');
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if(dot >= 0)
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{
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base=id.substr(0,dot);
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ext=id.substr(dot+1,(unsigned int)-1);
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}else
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{
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base=id;
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}
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int cnt=0;
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while (!(!dir->id_to_file(id) &&
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!dir->name_to_file(id) &&
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!dir->title_to_file(id)))
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{
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cnt++;
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id=base+"_"+GUTF8String(cnt);
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if (ext.length())
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id+="."+ext;
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}
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return id;
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}
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GP<DataPool>
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DjVuDocEditor::strip_incl_chunks(const GP<DataPool> & pool_in)
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{
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DEBUG_MSG("DjVuDocEditor::strip_incl_chunks() called\n");
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DEBUG_MAKE_INDENT(3);
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const GP<IFFByteStream> giff_in(
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IFFByteStream::create(pool_in->get_stream()));
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const GP<ByteStream> gbs_out(ByteStream::create());
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const GP<IFFByteStream> giff_out(IFFByteStream::create(gbs_out));
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IFFByteStream &iff_in=*giff_in;
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IFFByteStream &iff_out=*giff_out;
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bool have_incl=false;
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int chksize;
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GUTF8String chkid;
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if (iff_in.get_chunk(chkid))
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{
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iff_out.put_chunk(chkid);
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while((chksize=iff_in.get_chunk(chkid)))
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{
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if (chkid!="INCL")
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{
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iff_out.put_chunk(chkid);
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iff_out.copy(*iff_in.get_bytestream());
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iff_out.close_chunk();
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} else
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{
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have_incl=true;
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}
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iff_in.close_chunk();
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}
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iff_out.close_chunk();
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}
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if (have_incl)
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{
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gbs_out->seek(0,SEEK_SET);
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return DataPool::create(gbs_out);
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} else return pool_in;
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}
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GUTF8String
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DjVuDocEditor::insert_file(const GURL &file_url, const GUTF8String &parent_id,
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int chunk_num, DjVuPort *source)
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// Will open the 'file_name' and insert it into an existing DjVuFile
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// with ID 'parent_id'. Will insert the INCL chunk at position chunk_num
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// Will NOT process ANY files included into the file being inserted.
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// Moreover it will strip out any INCL chunks in that file...
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{
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DEBUG_MSG("DjVuDocEditor::insert_file(): fname='" << file_url <<
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"', parent_id='" << parent_id << "'\n");
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DEBUG_MAKE_INDENT(3);
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const GP<DjVmDir> dir(get_djvm_dir());
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if(!source)
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source=this;
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// Create DataPool and see if the file exists
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GP<DataPool> file_pool;
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if(file_url.is_empty()||file_url.is_local_file_url())
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{
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file_pool=DataPool::create(file_url);
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}else
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{
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file_pool=source->request_data(source, file_url);
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if(source != this)
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{
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file_pool=DataPool::create(file_pool->get_stream()->duplicate());
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}
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}
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if(file_pool && file_url && DjVuDocument::djvu_import_codec)
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{
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(*DjVuDocument::djvu_import_codec)(file_pool,file_url,needs_compression_flag,can_compress_flag);
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}
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// Strip any INCL chunks
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file_pool=strip_incl_chunks(file_pool);
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// Check if parent ID is valid
|
|
GP<DjVmDir::File> parent_frec(dir->id_to_file(parent_id));
|
|
if (!parent_frec)
|
|
parent_frec=dir->name_to_file(parent_id);
|
|
if (!parent_frec)
|
|
parent_frec=dir->title_to_file(parent_id);
|
|
if (!parent_frec)
|
|
G_THROW( ERR_MSG("DjVuDocEditor.no_file") "\t" +parent_id);
|
|
const GP<DjVuFile> parent_file(get_djvu_file(parent_id));
|
|
if (!parent_file)
|
|
G_THROW( ERR_MSG("DjVuDocEditor.create_fail") "\t"+parent_id);
|
|
|
|
// Now obtain ID for the new file
|
|
const GUTF8String id(find_unique_id(file_url.fname()));
|
|
|
|
// Add it into the directory
|
|
const GP<DjVmDir::File> frec(
|
|
DjVmDir::File::create(id, id, id, DjVmDir::File::INCLUDE));
|
|
int pos=dir->get_file_pos(parent_frec);
|
|
if (pos>=0)
|
|
++pos;
|
|
dir->insert_file(frec, pos);
|
|
|
|
// Add it to our "cache"
|
|
{
|
|
const GP<File> f(new File);
|
|
f->pool=file_pool;
|
|
GCriticalSectionLock lock(&files_lock);
|
|
files_map[id]=f;
|
|
}
|
|
|
|
// And insert it into the parent DjVuFile
|
|
parent_file->insert_file(id, chunk_num);
|
|
|
|
return id;
|
|
}
|
|
|
|
// First it will insert the 'file_url' at position 'file_pos'.
|
|
//
|
|
// Then it will process all the INCL chunks in the file and try to do
|
|
// the same thing with the included files. If insertion of an included
|
|
// file fails, it will proceed with other INCL chunks until it does
|
|
// them all. In the very end we will throw exception to let the caller
|
|
// know about problems with included files.
|
|
//
|
|
// If the name of a file being inserted conflicts with some other
|
|
// name, which has been in DjVmDir prior to call to this function,
|
|
// it will be modified. name2id is the translation table to
|
|
// keep track of these modifications.
|
|
//
|
|
// Also, if a name is in name2id, we will not insert that file again.
|
|
//
|
|
// Will return TRUE if the file has been successfully inserted.
|
|
// FALSE, if the file contains NDIR chunk and has been skipped.
|
|
bool
|
|
DjVuDocEditor::insert_file(const GURL &file_url, bool is_page,
|
|
int & file_pos, GMap<GUTF8String, GUTF8String> & name2id,
|
|
DjVuPort *source)
|
|
{
|
|
|
|
DEBUG_MSG("DjVuDocEditor::insert_file(): file_url='" << file_url <<
|
|
"', is_page='" << is_page << "'\n");
|
|
DEBUG_MAKE_INDENT(3);
|
|
if (refresh_cb)
|
|
refresh_cb(refresh_cl_data);
|
|
|
|
|
|
// We do not want to insert the same file twice (important when
|
|
// we insert a group of files at the same time using insert_group())
|
|
// So we check if we already did that and return if so.
|
|
if (name2id.contains(file_url.fname()))
|
|
return true;
|
|
|
|
if(!source)
|
|
source=this;
|
|
|
|
GP<DataPool> file_pool;
|
|
if(file_url.is_empty()||file_url.is_local_file_url())
|
|
{
|
|
file_pool=DataPool::create(file_url);
|
|
}
|
|
else
|
|
{
|
|
file_pool=source->request_data(source, file_url);
|
|
if(source != this)
|
|
{
|
|
file_pool=DataPool::create(file_pool->get_stream());
|
|
}
|
|
}
|
|
// Create DataPool and see if the file exists
|
|
if(file_pool && !file_url.is_empty() && DjVuDocument::djvu_import_codec)
|
|
{
|
|
(*DjVuDocument::djvu_import_codec)(file_pool,file_url,
|
|
needs_compression_flag,
|
|
can_compress_flag);
|
|
}
|
|
|
|
// Oh. It does exist... Check that it has IFF structure
|
|
{
|
|
const GP<IFFByteStream> giff(
|
|
IFFByteStream::create(file_pool->get_stream()));
|
|
IFFByteStream &iff=*giff;
|
|
GUTF8String chkid;
|
|
|
|
int length;
|
|
length=iff.get_chunk(chkid);
|
|
if (chkid!="FORM:DJVI" && chkid!="FORM:DJVU" &&
|
|
chkid!="FORM:BM44" && chkid!="FORM:PM44")
|
|
G_THROW( ERR_MSG("DjVuDocEditor.not_1_page") "\t"+file_url.get_string());
|
|
|
|
// Wonderful. It's even a DjVu file. Scan for NDIR chunks.
|
|
// If NDIR chunk is found, ignore the file
|
|
while(iff.get_chunk(chkid))
|
|
{
|
|
if (chkid=="NDIR")
|
|
return false;
|
|
iff.close_chunk();
|
|
}
|
|
}
|
|
return insert_file(file_pool,file_url,is_page,file_pos,name2id,source);
|
|
}
|
|
|
|
bool
|
|
DjVuDocEditor::insert_file(const GP<DataPool> &file_pool,
|
|
const GURL &file_url, bool is_page,
|
|
int & file_pos, GMap<GUTF8String, GUTF8String> & name2id,
|
|
DjVuPort *source)
|
|
{
|
|
GUTF8String errors;
|
|
if(file_pool)
|
|
{
|
|
const GP<DjVmDir> dir(get_djvm_dir());
|
|
G_TRY
|
|
{
|
|
// Now get a unique name for this file.
|
|
// Check the name2id first...
|
|
const GUTF8String name=file_url.fname();
|
|
GUTF8String id;
|
|
if (name2id.contains(name))
|
|
{
|
|
id=name2id[name];
|
|
}else
|
|
{
|
|
// Check to see if this page exists with a different name.
|
|
if(!is_page)
|
|
{
|
|
GPList<DjVmDir::File> list(dir->get_files_list());
|
|
for(GPosition pos=list;pos;++pos)
|
|
{
|
|
DEBUG_MSG("include " << list[pos]->is_include()
|
|
<< " size=" << list[pos]->size << " length="
|
|
<< file_pool->get_length() << "\n");
|
|
if(list[pos]->is_include()
|
|
&& (!list[pos]->size
|
|
|| (list[pos]->size == file_pool->get_length())))
|
|
{
|
|
id=list[pos]->get_load_name();
|
|
GP<DjVuFile> file(get_djvu_file(id,false));
|
|
const GP<DataPool> pool(file->get_djvu_data(false));
|
|
if(file_pool->simple_compare(*pool))
|
|
{
|
|
// The files are the same, so just store the alias.
|
|
name2id[name]=id;
|
|
}
|
|
const GP<IFFByteStream> giff_old(IFFByteStream::create(pool->get_stream()));
|
|
const GP<IFFByteStream> giff_new(IFFByteStream::create(file_pool->get_stream()));
|
|
file=0;
|
|
if(giff_old->compare(*giff_new))
|
|
{
|
|
// The files are the same, so just store the alias.
|
|
name2id[name]=id;
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// Otherwise create a new unique ID and remember the translation
|
|
id=find_unique_id(name);
|
|
name2id[name]=id;
|
|
}
|
|
|
|
// Good. Before we continue with the included files we want to
|
|
// complete insertion of this one. Notice, that insertion of
|
|
// children may fail, in which case we will have to modify
|
|
// data for this file to get rid of invalid INCL
|
|
|
|
// Create a file record with the chosen ID
|
|
const GP<DjVmDir::File> file(DjVmDir::File::create(id, id, id,
|
|
is_page ? DjVmDir::File::PAGE : DjVmDir::File::INCLUDE ));
|
|
|
|
// And insert it into the directory
|
|
file_pos=dir->insert_file(file, file_pos);
|
|
|
|
// And add the File record (containing the file URL and DataPool)
|
|
{
|
|
const GP<File> f(new File);
|
|
f->pool=file_pool;
|
|
GCriticalSectionLock lock(&files_lock);
|
|
files_map[id]=f;
|
|
}
|
|
|
|
// The file has been added. If it doesn't include anything else,
|
|
// that will be enough. Otherwise repeat what we just did for every
|
|
// included child. Don't forget to modify the contents of INCL
|
|
// chunks due to name2id translation.
|
|
// We also want to include here our file with shared annotations,
|
|
// if it exists.
|
|
GUTF8String chkid;
|
|
const GP<IFFByteStream> giff_in(
|
|
IFFByteStream::create(file_pool->get_stream()));
|
|
IFFByteStream &iff_in=*giff_in;
|
|
const GP<ByteStream> gstr_out(ByteStream::create());
|
|
const GP<IFFByteStream> giff_out(IFFByteStream::create(gstr_out));
|
|
IFFByteStream &iff_out=*giff_out;
|
|
|
|
const GP<DjVmDir::File> shared_frec(djvm_dir->get_shared_anno_file());
|
|
|
|
iff_in.get_chunk(chkid);
|
|
iff_out.put_chunk(chkid);
|
|
while(iff_in.get_chunk(chkid))
|
|
{
|
|
if (chkid!="INCL")
|
|
{
|
|
iff_out.put_chunk(chkid);
|
|
iff_out.copy(*iff_in.get_bytestream());
|
|
iff_in.close_chunk();
|
|
iff_out.close_chunk();
|
|
if (shared_frec && chkid=="INFO")
|
|
{
|
|
iff_out.put_chunk("INCL");
|
|
iff_out.get_bytestream()->writestring(shared_frec->get_load_name());
|
|
iff_out.close_chunk();
|
|
}
|
|
} else
|
|
{
|
|
GUTF8String name;
|
|
char buffer[1024];
|
|
int length;
|
|
while((length=iff_in.read(buffer, 1024)))
|
|
name+=GUTF8String(buffer, length);
|
|
while(isspace(name[0]))
|
|
{
|
|
name=name.substr(1,(unsigned int)-1);
|
|
}
|
|
while(isspace(name[(int)name.length()-1]))
|
|
{
|
|
name.setat(name.length()-1, 0);
|
|
}
|
|
const GURL::UTF8 full_url(name,file_url.base());
|
|
iff_in.close_chunk();
|
|
|
|
G_TRY {
|
|
if (insert_file(full_url, false, file_pos, name2id, source))
|
|
{
|
|
// If the child file has been inserted (doesn't
|
|
// contain NDIR chunk), add INCL chunk.
|
|
GUTF8String id=name2id[name];
|
|
iff_out.put_chunk("INCL");
|
|
iff_out.get_bytestream()->writestring(id);
|
|
iff_out.close_chunk();
|
|
}
|
|
} G_CATCH(exc) {
|
|
// Should an error occur, we move on. INCL chunk will
|
|
// not be copied.
|
|
if (errors.length())
|
|
errors+="\n\n";
|
|
errors+=exc.get_cause();
|
|
} G_ENDCATCH;
|
|
}
|
|
} // while(iff_in.get_chunk(chkid))
|
|
iff_out.close_chunk();
|
|
|
|
// Increment the file_pos past the page inserted.
|
|
if (file_pos>=0) file_pos++;
|
|
|
|
// We have just inserted every included file. We may have modified
|
|
// contents of the INCL chunks. So we need to update the DataPool...
|
|
gstr_out->seek(0);
|
|
const GP<DataPool> new_file_pool(DataPool::create(gstr_out));
|
|
{
|
|
// It's important that we replace the pool here anyway.
|
|
// By doing this we load the file into memory. And this is
|
|
// exactly what insert_group() wants us to do because
|
|
// it creates temporary files.
|
|
GCriticalSectionLock lock(&files_lock);
|
|
files_map[id]->pool=new_file_pool;
|
|
}
|
|
} G_CATCH(exc) {
|
|
if (errors.length())
|
|
errors+="\n\n";
|
|
errors+=exc.get_cause();
|
|
G_THROW(errors);
|
|
} G_ENDCATCH;
|
|
|
|
// The only place where we intercept exceptions is when we process
|
|
// included files. We want to process all of them even if we failed to
|
|
// process one. But here we need to let the exception propagate...
|
|
if (errors.length())
|
|
G_THROW(errors);
|
|
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void
|
|
DjVuDocEditor::insert_group(const GList<GURL> & file_urls, int page_num,
|
|
void (* _refresh_cb)(void *), void * _cl_data)
|
|
// The function will insert every file from the list at position
|
|
// corresponding to page_num. If page_num is negative, concatenation
|
|
// will occur. Included files will be processed as well
|
|
{
|
|
refresh_cb=_refresh_cb;
|
|
refresh_cl_data=_cl_data;
|
|
|
|
G_TRY
|
|
{
|
|
|
|
// First translate the page_num to file_pos.
|
|
const GP<DjVmDir> dir(get_djvm_dir());
|
|
int file_pos;
|
|
if (page_num<0 || page_num>=dir->get_pages_num())
|
|
{
|
|
file_pos=-1;
|
|
}
|
|
else
|
|
{
|
|
file_pos=dir->get_page_pos(page_num);
|
|
}
|
|
|
|
// Now call the insert_file() for every page. We will remember the
|
|
// name2id translation table. Thus insert_file() will remember IDs
|
|
// it assigned to shared files
|
|
GMap<GUTF8String, GUTF8String> name2id;
|
|
|
|
GUTF8String errors;
|
|
for(GPosition pos=file_urls;pos;++pos)
|
|
{
|
|
const GURL &furl=file_urls[pos];
|
|
DEBUG_MSG( "Inserting file '" << furl << "'\n" );
|
|
G_TRY
|
|
{
|
|
// Check if it's a multipage document...
|
|
GP<DataPool> xdata_pool(DataPool::create(furl));
|
|
if(xdata_pool && furl.is_valid()
|
|
&& furl.is_local_file_url() && DjVuDocument::djvu_import_codec)
|
|
{
|
|
(*DjVuDocument::djvu_import_codec)(xdata_pool,furl,
|
|
needs_compression_flag,
|
|
can_compress_flag);
|
|
}
|
|
GUTF8String chkid;
|
|
IFFByteStream::create(xdata_pool->get_stream())->get_chunk(chkid);
|
|
if (name2id.contains(furl.fname())||(chkid=="FORM:DJVM"))
|
|
{
|
|
GMap<GUTF8String,void *> map;
|
|
map_ids(map);
|
|
DEBUG_MSG("Read DjVuDocument furl='" << furl << "'\n");
|
|
GP<ByteStream> gbs(ByteStream::create());
|
|
GP<DjVuDocument> doca(DjVuDocument::create_noinit());
|
|
doca->set_verbose_eof(verbose_eof);
|
|
doca->set_recover_errors(recover_errors);
|
|
doca->init(furl /* ,this */ );
|
|
doca->wait_for_complete_init();
|
|
get_portcaster()->add_route(doca,this);
|
|
DEBUG_MSG("Saving DjVuDocument url='" << furl << "' with unique names\n");
|
|
doca->write(gbs,map);
|
|
gbs->seek(0L);
|
|
DEBUG_MSG("Loading unique names\n");
|
|
GP<DjVuDocument> doc(DjVuDocument::create(gbs));
|
|
doc->set_verbose_eof(verbose_eof);
|
|
doc->set_recover_errors(recover_errors);
|
|
doc->wait_for_complete_init();
|
|
get_portcaster()->add_route(doc,this);
|
|
gbs=0;
|
|
DEBUG_MSG("Inserting pages\n");
|
|
int pages_num=doc->get_pages_num();
|
|
for(int page_num=0;page_num<pages_num;page_num++)
|
|
{
|
|
const GURL url(doc->page_to_url(page_num));
|
|
insert_file(url, true, file_pos, name2id, doc);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
insert_file(furl, true, file_pos, name2id, this);
|
|
}
|
|
} G_CATCH(exc)
|
|
{
|
|
if (errors.length())
|
|
{
|
|
errors+="\n\n";
|
|
}
|
|
errors+=exc.get_cause();
|
|
}
|
|
G_ENDCATCH;
|
|
}
|
|
if (errors.length())
|
|
{
|
|
G_THROW(errors);
|
|
}
|
|
} G_CATCH_ALL
|
|
{
|
|
refresh_cb=0;
|
|
refresh_cl_data=0;
|
|
G_RETHROW;
|
|
} G_ENDCATCH;
|
|
refresh_cb=0;
|
|
refresh_cl_data=0;
|
|
}
|
|
|
|
void
|
|
DjVuDocEditor::insert_page(const GURL &file_url, int page_num)
|
|
{
|
|
DEBUG_MSG("DjVuDocEditor::insert_page(): furl='" << file_url << "'\n");
|
|
DEBUG_MAKE_INDENT(3);
|
|
|
|
GList<GURL> list;
|
|
list.append(file_url);
|
|
|
|
insert_group(list, page_num);
|
|
}
|
|
|
|
void
|
|
DjVuDocEditor::insert_page(GP<DataPool> & _file_pool,
|
|
const GURL & file_url, int page_num)
|
|
// Use _file_pool as source of data, create a new DjVuFile
|
|
// with name file_name, and insert it as page number page_num
|
|
{
|
|
DEBUG_MSG("DjVuDocEditor::insert_page(): pool size='" <<
|
|
_file_pool->get_size() << "'\n");
|
|
DEBUG_MAKE_INDENT(3);
|
|
|
|
const GP<DjVmDir> dir(get_djvm_dir());
|
|
|
|
// Strip any INCL chunks (we do not allow to insert hierarchies
|
|
// using this function)
|
|
const GP<DataPool> file_pool(strip_incl_chunks(_file_pool));
|
|
|
|
// Now obtain ID for the new file
|
|
const GUTF8String id(find_unique_id(file_url.fname()));
|
|
|
|
// Add it into the directory
|
|
const GP<DjVmDir::File> frec(DjVmDir::File::create(
|
|
id, id, id, DjVmDir::File::PAGE));
|
|
int pos=dir->get_page_pos(page_num);
|
|
dir->insert_file(frec, pos);
|
|
|
|
// Add it to our "cache"
|
|
{
|
|
GP<File> f=new File;
|
|
f->pool=file_pool;
|
|
GCriticalSectionLock lock(&files_lock);
|
|
files_map[id]=f;
|
|
}
|
|
}
|
|
|
|
void
|
|
DjVuDocEditor::generate_ref_map(const GP<DjVuFile> & file,
|
|
GMap<GUTF8String, void *> & ref_map,
|
|
GMap<GURL, void *> & visit_map)
|
|
// This private function is used to generate a list (implemented as map)
|
|
// of files referencing the given file. To get list of all parents
|
|
// for file with ID 'id' iterate map obtained as
|
|
// *((GMap<GUTF8String, void *> *) ref_map[id])
|
|
{
|
|
const GURL url=file->get_url();
|
|
const GUTF8String id(djvm_dir->name_to_file(url.fname())->get_load_name());
|
|
if (!visit_map.contains(url))
|
|
{
|
|
visit_map[url]=0;
|
|
|
|
GPList<DjVuFile> files_list=file->get_included_files(false);
|
|
for(GPosition pos=files_list;pos;++pos)
|
|
{
|
|
GP<DjVuFile> child_file=files_list[pos];
|
|
// First: add the current file to the list of parents for
|
|
// the child being processed
|
|
GURL child_url=child_file->get_url();
|
|
const GUTF8String child_id(
|
|
djvm_dir->name_to_file(child_url.fname())->get_load_name());
|
|
GMap<GUTF8String, void *> * parents=0;
|
|
if (ref_map.contains(child_id))
|
|
parents=(GMap<GUTF8String, void *> *) ref_map[child_id];
|
|
else
|
|
ref_map[child_id]=parents=new GMap<GUTF8String, void *>();
|
|
(*parents)[id]=0;
|
|
// Second: go recursively
|
|
generate_ref_map(child_file, ref_map, visit_map);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
DjVuDocEditor::remove_file(const GUTF8String &id, bool remove_unref,
|
|
GMap<GUTF8String, void *> & ref_map)
|
|
// Private function, which will remove file with ID id.
|
|
//
|
|
// If will also remove all INCL chunks in parent files pointing
|
|
// to this one
|
|
//
|
|
// Finally, if remove_unref is TRUE, we will go down the files
|
|
// hierarchy removing every file, which becomes unreferenced.
|
|
//
|
|
// ref_map will be used to find out list of parents referencing
|
|
// this file (required when removing INCL chunks)
|
|
{
|
|
// First get rid of INCL chunks in parents
|
|
GMap<GUTF8String, void *> * parents=(GMap<GUTF8String, void *> *) ref_map[id];
|
|
if (parents)
|
|
{
|
|
for(GPosition pos=*parents;pos;++pos)
|
|
{
|
|
const GUTF8String parent_id((*parents).key(pos));
|
|
const GP<DjVuFile> parent(get_djvu_file(parent_id));
|
|
if (parent)
|
|
parent->unlink_file(id);
|
|
}
|
|
delete parents;
|
|
parents=0;
|
|
ref_map.del(id);
|
|
}
|
|
|
|
// We will accumulate errors here.
|
|
GUTF8String errors;
|
|
|
|
// Now modify the ref_map and process children if necessary
|
|
GP<DjVuFile> file=get_djvu_file(id);
|
|
if (file)
|
|
{
|
|
G_TRY {
|
|
GPList<DjVuFile> files_list=file->get_included_files(false);
|
|
for(GPosition pos=files_list;pos;++pos)
|
|
{
|
|
GP<DjVuFile> child_file=files_list[pos];
|
|
GURL child_url=child_file->get_url();
|
|
const GUTF8String child_id(
|
|
djvm_dir->name_to_file(child_url.fname())->get_load_name());
|
|
GMap<GUTF8String, void *> * parents=(GMap<GUTF8String, void *> *) ref_map[child_id];
|
|
if (parents) parents->del(id);
|
|
|
|
if (remove_unref && (!parents || !parents->size()))
|
|
remove_file(child_id, remove_unref, ref_map);
|
|
}
|
|
} G_CATCH(exc) {
|
|
if (errors.length()) errors+="\n\n";
|
|
errors+=exc.get_cause();
|
|
} G_ENDCATCH;
|
|
}
|
|
|
|
// Finally remove this file from the directory.
|
|
djvm_dir->delete_file(id);
|
|
|
|
// And get rid of its thumbnail, if any
|
|
GCriticalSectionLock lock(&thumb_lock);
|
|
GPosition pos(thumb_map.contains(id));
|
|
if (pos)
|
|
{
|
|
thumb_map.del(pos);
|
|
}
|
|
if (errors.length())
|
|
G_THROW(errors);
|
|
}
|
|
|
|
void
|
|
DjVuDocEditor::remove_file(const GUTF8String &id, bool remove_unref)
|
|
{
|
|
DEBUG_MSG("DjVuDocEditor::remove_file(): id='" << id << "'\n");
|
|
DEBUG_MAKE_INDENT(3);
|
|
|
|
if (!djvm_dir->id_to_file(id))
|
|
G_THROW( ERR_MSG("DjVuDocEditor.no_file") "\t"+id);
|
|
|
|
// First generate a map of references (containing the list of parents
|
|
// including this particular file. This will speed things up
|
|
// significatly.
|
|
GMap<GUTF8String, void *> ref_map; // GMap<GUTF8String, GMap<GUTF8String, void *> *> in fact
|
|
GMap<GURL, void *> visit_map; // To avoid loops
|
|
|
|
int pages_num=djvm_dir->get_pages_num();
|
|
for(int page_num=0;page_num<pages_num;page_num++)
|
|
generate_ref_map(get_djvu_file(page_num), ref_map, visit_map);
|
|
|
|
// Now call the function, which will do the removal recursively
|
|
remove_file(id, remove_unref, ref_map);
|
|
|
|
// And clear the ref_map
|
|
GPosition pos;
|
|
while((pos=ref_map))
|
|
{
|
|
GMap<GUTF8String, void *> * parents=(GMap<GUTF8String, void *> *) ref_map[pos];
|
|
delete parents;
|
|
ref_map.del(pos);
|
|
}
|
|
}
|
|
|
|
void
|
|
DjVuDocEditor::remove_page(int page_num, bool remove_unref)
|
|
{
|
|
DEBUG_MSG("DjVuDocEditor::remove_page(): page_num=" << page_num << "\n");
|
|
DEBUG_MAKE_INDENT(3);
|
|
|
|
// Translate the page_num to ID
|
|
GP<DjVmDir> djvm_dir=get_djvm_dir();
|
|
if (page_num<0 || page_num>=djvm_dir->get_pages_num())
|
|
G_THROW( ERR_MSG("DjVuDocEditor.bad_page") "\t"+GUTF8String(page_num));
|
|
|
|
// And call general remove_file()
|
|
remove_file(djvm_dir->page_to_file(page_num)->get_load_name(), remove_unref);
|
|
}
|
|
|
|
void
|
|
DjVuDocEditor::remove_pages(const GList<int> & page_list, bool remove_unref)
|
|
{
|
|
DEBUG_MSG("DjVuDocEditor::remove_pages() called\n");
|
|
DEBUG_MAKE_INDENT(3);
|
|
|
|
// First we need to translate page numbers to IDs (they will
|
|
// obviously be changing while we're removing pages one after another)
|
|
GP<DjVmDir> djvm_dir=get_djvm_dir();
|
|
GPosition pos ;
|
|
if (djvm_dir)
|
|
{
|
|
GList<GUTF8String> id_list;
|
|
for(pos=page_list;pos;++pos)
|
|
{
|
|
GP<DjVmDir::File> frec=djvm_dir->page_to_file(page_list[pos]);
|
|
if (frec)
|
|
id_list.append(frec->get_load_name());
|
|
}
|
|
|
|
for(pos=id_list;pos;++pos)
|
|
{
|
|
GP<DjVmDir::File> frec=djvm_dir->id_to_file(id_list[pos]);
|
|
if (frec)
|
|
remove_page(frec->get_page_num(), remove_unref);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
DjVuDocEditor::move_file(const GUTF8String &id, int & file_pos,
|
|
GMap<GUTF8String, void *> & map)
|
|
// NOTE! file_pos here is the desired position in DjVmDir *after*
|
|
// the record with ID 'id' is removed.
|
|
{
|
|
if (!map.contains(id))
|
|
{
|
|
map[id]=0;
|
|
|
|
GP<DjVmDir::File> file_rec=djvm_dir->id_to_file(id);
|
|
if (file_rec)
|
|
{
|
|
file_rec=new DjVmDir::File(*file_rec);
|
|
djvm_dir->delete_file(id);
|
|
djvm_dir->insert_file(file_rec, file_pos);
|
|
|
|
if (file_pos>=0)
|
|
{
|
|
file_pos++;
|
|
|
|
// We care to move included files only if we do not append
|
|
// This is because the only reason why we move included
|
|
// files is to made them available sooner than they would
|
|
// be available if we didn't move them. By appending files
|
|
// we delay the moment when the data for the file becomes
|
|
// available, of course.
|
|
GP<DjVuFile> djvu_file=get_djvu_file(id);
|
|
if (djvu_file)
|
|
{
|
|
GPList<DjVuFile> files_list=djvu_file->get_included_files(false);
|
|
for(GPosition pos=files_list;pos;++pos)
|
|
{
|
|
const GUTF8String name(files_list[pos]->get_url().fname());
|
|
GP<DjVmDir::File> child_frec=djvm_dir->name_to_file(name);
|
|
|
|
// If the child is positioned in DjVmDir AFTER the
|
|
// file being processed (position is file_pos or greater),
|
|
// move it to file_pos position
|
|
if (child_frec)
|
|
if (djvm_dir->get_file_pos(child_frec)>file_pos)
|
|
move_file(child_frec->get_load_name(), file_pos, map);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
DjVuDocEditor::move_page(int page_num, int new_page_num)
|
|
{
|
|
DEBUG_MSG("DjVuDocEditor::move_page(): page_num=" << page_num <<
|
|
", new_page_num=" << new_page_num << "\n");
|
|
DEBUG_MAKE_INDENT(3);
|
|
|
|
if (page_num==new_page_num) return;
|
|
|
|
int pages_num=get_pages_num();
|
|
if (page_num<0 || page_num>=pages_num)
|
|
G_THROW( ERR_MSG("DjVuDocEditor.bad_page") "\t"+GUTF8String(page_num));
|
|
|
|
const GUTF8String id(page_to_id(page_num));
|
|
int file_pos=-1;
|
|
if (new_page_num>=0 && new_page_num<pages_num)
|
|
if (new_page_num>page_num) // Moving toward the end
|
|
{
|
|
if (new_page_num<pages_num-1)
|
|
file_pos=djvm_dir->get_page_pos(new_page_num+1)-1;
|
|
} else
|
|
file_pos=djvm_dir->get_page_pos(new_page_num);
|
|
|
|
GMap<GUTF8String, void *> map;
|
|
move_file(id, file_pos, map);
|
|
}
|
|
#ifdef _WIN32_WCE_EMULATION // Work around odd behavior under WCE Emulation
|
|
#define CALLINGCONVENTION __cdecl
|
|
#else
|
|
#define CALLINGCONVENTION /* */
|
|
#endif
|
|
|
|
static int
|
|
CALLINGCONVENTION
|
|
cmp(const void * ptr1, const void * ptr2)
|
|
{
|
|
int num1=*(int *) ptr1;
|
|
int num2=*(int *) ptr2;
|
|
return num1<num2 ? -1 : num1>num2 ? 1 : 0;
|
|
}
|
|
|
|
static GList<int>
|
|
sortList(const GList<int> & list)
|
|
{
|
|
GArray<int> a(list.size()-1);
|
|
int cnt;
|
|
GPosition pos;
|
|
for(pos=list, cnt=0;pos;++pos, cnt++)
|
|
a[cnt]=list[pos];
|
|
|
|
qsort((int *) a, a.size(), sizeof(int), cmp);
|
|
|
|
GList<int> l;
|
|
for(int i=0;i<a.size();i++)
|
|
l.append(a[i]);
|
|
|
|
return l;
|
|
}
|
|
|
|
void
|
|
DjVuDocEditor::move_pages(const GList<int> & _page_list, int shift)
|
|
{
|
|
if (!shift) return;
|
|
|
|
GList<int> page_list=sortList(_page_list);
|
|
|
|
GList<GUTF8String> id_list;
|
|
for(GPosition pos=page_list;pos;++pos)
|
|
{
|
|
GP<DjVmDir::File> frec=djvm_dir->page_to_file(page_list[pos]);
|
|
if (frec)
|
|
id_list.append(frec->get_load_name());
|
|
}
|
|
|
|
if (shift<0)
|
|
{
|
|
// We have to start here from the smallest page number
|
|
// We will move it according to the 'shift', and all
|
|
// further moves are guaranteed not to affect its page number.
|
|
|
|
// We will be changing the 'min_page' to make sure that
|
|
// pages moved beyond the document will still be in correct order
|
|
int min_page=0;
|
|
for(GPosition pos=id_list;pos;++pos)
|
|
{
|
|
GP<DjVmDir::File> frec=djvm_dir->id_to_file(id_list[pos]);
|
|
if (frec)
|
|
{
|
|
int page_num=frec->get_page_num();
|
|
int new_page_num=page_num+shift;
|
|
if (new_page_num<min_page)
|
|
new_page_num=min_page++;
|
|
move_page(page_num, new_page_num);
|
|
}
|
|
}
|
|
} else
|
|
{
|
|
// We have to start here from the biggest page number
|
|
// We will move it according to the 'shift', and all
|
|
// further moves will not affect its page number.
|
|
|
|
// We will be changing the 'max_page' to make sure that
|
|
// pages moved beyond the document will still be in correct order
|
|
int max_page=djvm_dir->get_pages_num()-1;
|
|
for(GPosition pos=id_list.lastpos();pos;--pos)
|
|
{
|
|
GP<DjVmDir::File> frec=djvm_dir->id_to_file(id_list[pos]);
|
|
if (frec)
|
|
{
|
|
int page_num=frec->get_page_num();
|
|
int new_page_num=page_num+shift;
|
|
if (new_page_num>max_page)
|
|
new_page_num=max_page--;
|
|
move_page(page_num, new_page_num);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
DjVuDocEditor::set_file_name(const GUTF8String &id, const GUTF8String &name)
|
|
{
|
|
DEBUG_MSG("DjVuDocEditor::set_file_name(), id='" << id << "', name='" << name << "'\n");
|
|
DEBUG_MAKE_INDENT(3);
|
|
|
|
// It's important to get the URL now, because later (after we
|
|
// change DjVmDir) id_to_url() will be returning a modified value
|
|
GURL url=id_to_url(id);
|
|
|
|
// Change DjVmDir. It will check if the name is unique
|
|
djvm_dir->set_file_name(id, name);
|
|
|
|
// Now find DjVuFile (if any) and rename it
|
|
GPosition pos;
|
|
if (files_map.contains(id, pos))
|
|
{
|
|
GP<File> file=files_map[pos];
|
|
GP<DataPool> pool=file->pool;
|
|
if (pool) pool->load_file();
|
|
GP<DjVuFile> djvu_file=file->file;
|
|
if (djvu_file) djvu_file->set_name(name);
|
|
}
|
|
}
|
|
|
|
void
|
|
DjVuDocEditor::set_page_name(int page_num, const GUTF8String &name)
|
|
{
|
|
DEBUG_MSG("DjVuDocEditor::set_page_name(), page_num='" << page_num << "'\n");
|
|
DEBUG_MAKE_INDENT(3);
|
|
|
|
if (page_num<0 || page_num>=get_pages_num())
|
|
G_THROW( ERR_MSG("DjVuDocEditor.bad_page") "\t"+GUTF8String(page_num));
|
|
|
|
set_file_name(page_to_id(page_num), name);
|
|
}
|
|
|
|
void
|
|
DjVuDocEditor::set_file_title(const GUTF8String &id, const GUTF8String &title)
|
|
{
|
|
DEBUG_MSG("DjVuDocEditor::set_file_title(), id='" << id << "', title='" << title << "'\n");
|
|
DEBUG_MAKE_INDENT(3);
|
|
|
|
// Just change DjVmDir. It will check if the title is unique
|
|
djvm_dir->set_file_title(id, title);
|
|
}
|
|
|
|
void
|
|
DjVuDocEditor::set_page_title(int page_num, const GUTF8String &title)
|
|
{
|
|
DEBUG_MSG("DjVuDocEditor::set_page_title(), page_num='" << page_num << "'\n");
|
|
DEBUG_MAKE_INDENT(3);
|
|
|
|
if (page_num<0 || page_num>=get_pages_num())
|
|
G_THROW( ERR_MSG("DjVuDocEditor.bad_page") "\t"+GUTF8String(page_num));
|
|
|
|
set_file_title(page_to_id(page_num), title);
|
|
}
|
|
|
|
//****************************************************************************
|
|
//************************** Shared annotations ******************************
|
|
//****************************************************************************
|
|
|
|
void
|
|
DjVuDocEditor::simplify_anno(void (* progress_cb)(float progress, void *),
|
|
void * cl_data)
|
|
// It's important that no decoding is done while this function
|
|
// is running. Otherwise the DjVuFile's decoding routines and
|
|
// this function may attempt to decode/modify a file's
|
|
// annotations at the same time.
|
|
{
|
|
// Get the name of the SHARED_ANNO file. We will not
|
|
// touch that file (will not move annotations from it)
|
|
GP<DjVmDir::File> shared_file=djvm_dir->get_shared_anno_file();
|
|
GUTF8String shared_id;
|
|
if (shared_file)
|
|
shared_id=shared_file->get_load_name();
|
|
|
|
GList<GURL> ignore_list;
|
|
if (shared_id.length())
|
|
ignore_list.append(id_to_url(shared_id));
|
|
|
|
// First, for every page get merged (or "flatten" or "projected")
|
|
// annotations and store them inside the top-level page file
|
|
int pages_num=djvm_dir->get_pages_num();
|
|
for(int page_num=0;page_num<pages_num;page_num++)
|
|
{
|
|
GP<DjVuFile> djvu_file=get_djvu_file(page_num);
|
|
if (!djvu_file)
|
|
G_THROW( ERR_MSG("DjVuDocEditor.page_fail") "\t"+page_num);
|
|
int max_level=0;
|
|
GP<ByteStream> anno;
|
|
anno=djvu_file->get_merged_anno(ignore_list, &max_level);
|
|
if (anno && max_level>0)
|
|
{
|
|
// This is the moment when we try to modify DjVuFile's annotations
|
|
// Make sure, that it's not being decoded
|
|
GSafeFlags & file_flags=djvu_file->get_safe_flags();
|
|
GMonitorLock lock(&file_flags);
|
|
while(file_flags & DjVuFile::DECODING)
|
|
file_flags.wait();
|
|
|
|
// Merge all chunks in one by decoding and encoding DjVuAnno
|
|
const GP<DjVuAnno> dec_anno(DjVuAnno::create());
|
|
dec_anno->decode(anno);
|
|
const GP<ByteStream> new_anno(ByteStream::create());
|
|
dec_anno->encode(new_anno);
|
|
new_anno->seek(0);
|
|
|
|
// And store it in the file
|
|
djvu_file->anno=new_anno;
|
|
djvu_file->rebuild_data_pool();
|
|
if ((file_flags & (DjVuFile::DECODE_OK |
|
|
DjVuFile::DECODE_FAILED |
|
|
DjVuFile::DECODE_STOPPED))==0)
|
|
djvu_file->anno=0;
|
|
}
|
|
if (progress_cb)
|
|
progress_cb((float)(page_num/2.0/pages_num), cl_data);
|
|
}
|
|
|
|
// Now remove annotations from every file except for
|
|
// the top-level page files and SHARED_ANNO file.
|
|
// Unlink empty files too.
|
|
GPList<DjVmDir::File> files_list=djvm_dir->get_files_list();
|
|
int cnt;
|
|
GPosition pos;
|
|
for(pos=files_list, cnt=0;pos;++pos, cnt++)
|
|
{
|
|
GP<DjVmDir::File> frec=files_list[pos];
|
|
if (!frec->is_page() && frec->get_load_name()!=shared_id)
|
|
{
|
|
GP<DjVuFile> djvu_file=get_djvu_file(frec->get_load_name());
|
|
if (djvu_file)
|
|
{
|
|
djvu_file->remove_anno();
|
|
if (djvu_file->get_chunks_number()==0)
|
|
remove_file(frec->get_load_name(), true);
|
|
}
|
|
}
|
|
if (progress_cb)
|
|
progress_cb((float)(0.5+cnt/2.0/files_list.size()), cl_data);
|
|
}
|
|
}
|
|
|
|
void
|
|
DjVuDocEditor::create_shared_anno_file(void (* progress_cb)(float progress, void *),
|
|
void * cl_data)
|
|
{
|
|
if (djvm_dir->get_shared_anno_file())
|
|
G_THROW( ERR_MSG("DjVuDocEditor.share_fail") );
|
|
|
|
// Prepare file with ANTa chunk inside
|
|
const GP<ByteStream> gstr(ByteStream::create());
|
|
const GP<IFFByteStream> giff(IFFByteStream::create(gstr));
|
|
IFFByteStream &iff=*giff;
|
|
iff.put_chunk("FORM:DJVI");
|
|
iff.put_chunk("ANTa");
|
|
iff.close_chunk();
|
|
iff.close_chunk();
|
|
ByteStream &str=*gstr;
|
|
str.flush();
|
|
str.seek(0);
|
|
const GP<DataPool> file_pool(DataPool::create(gstr));
|
|
|
|
// Get a unique ID for the new file
|
|
const GUTF8String id(find_unique_id("shared_anno.iff"));
|
|
|
|
// Add it into the directory
|
|
GP<DjVmDir::File> frec(DjVmDir::File::create(id, id, id,
|
|
DjVmDir::File::SHARED_ANNO));
|
|
djvm_dir->insert_file(frec, 1);
|
|
|
|
// Add it to our "cache"
|
|
{
|
|
GP<File> f=new File;
|
|
f->pool=file_pool;
|
|
GCriticalSectionLock lock(&files_lock);
|
|
files_map[id]=f;
|
|
}
|
|
|
|
// Now include this shared file into every top-level page file
|
|
int pages_num=djvm_dir->get_pages_num();
|
|
for(int page_num=0;page_num<pages_num;page_num++)
|
|
{
|
|
GP<DjVuFile> djvu_file=get_djvu_file(page_num);
|
|
djvu_file->insert_file(id, 1);
|
|
|
|
if (progress_cb)
|
|
progress_cb((float) page_num/pages_num, cl_data);
|
|
}
|
|
}
|
|
|
|
void
|
|
DjVuDocEditor::set_djvm_nav(GP<DjVmNav> n)
|
|
{
|
|
if (n && ! n->isValidBookmark())
|
|
G_THROW("Invalid bookmark data");
|
|
djvm_nav = n;
|
|
}
|
|
|
|
GP<DjVuFile>
|
|
DjVuDocEditor::get_shared_anno_file(void)
|
|
{
|
|
GP<DjVuFile> djvu_file;
|
|
|
|
GP<DjVmDir::File> frec=djvm_dir->get_shared_anno_file();
|
|
if (frec)
|
|
djvu_file=get_djvu_file(frec->get_load_name());
|
|
|
|
return djvu_file;
|
|
}
|
|
|
|
GP<DataPool>
|
|
DjVuDocEditor::get_thumbnail(int page_num, bool dont_decode)
|
|
// We override DjVuDocument::get_thumbnail() here because
|
|
// pages may have been shuffled and those "thumbnail file records"
|
|
// from the DjVmDir do not describe things correctly.
|
|
//
|
|
// So, first we will check the thumb_map[] if we have a predecoded
|
|
// thumbnail for the given page. If this is the case, we will
|
|
// return it. Otherwise we will ask DjVuDocument to generate
|
|
// this thumbnail for us.
|
|
{
|
|
const GUTF8String id(page_to_id(page_num));
|
|
|
|
GCriticalSectionLock lock(&thumb_lock);
|
|
const GPosition pos(thumb_map.contains(id));
|
|
if (pos)
|
|
{
|
|
// Get the image from the map
|
|
return thumb_map[pos];
|
|
} else
|
|
{
|
|
unfile_thumbnails();
|
|
return DjVuDocument::get_thumbnail(page_num, dont_decode);
|
|
}
|
|
}
|
|
|
|
int
|
|
DjVuDocEditor::get_thumbnails_num(void) const
|
|
{
|
|
GCriticalSectionLock lock((GCriticalSection *) &thumb_lock);
|
|
|
|
int cnt=0;
|
|
int pages_num=get_pages_num();
|
|
for(int page_num=0;page_num<pages_num;page_num++)
|
|
{
|
|
if (thumb_map.contains(page_to_id(page_num)))
|
|
cnt++;
|
|
}
|
|
return cnt;
|
|
}
|
|
|
|
int
|
|
DjVuDocEditor::get_thumbnails_size(void) const
|
|
{
|
|
DEBUG_MSG("DjVuDocEditor::remove_thumbnails(): doing it\n");
|
|
DEBUG_MAKE_INDENT(3);
|
|
|
|
GCriticalSectionLock lock((GCriticalSection *) &thumb_lock);
|
|
|
|
int pages_num=get_pages_num();
|
|
for(int page_num=0;page_num<pages_num;page_num++)
|
|
{
|
|
const GPosition pos(thumb_map.contains(page_to_id(page_num)));
|
|
if (pos)
|
|
{
|
|
const GP<ByteStream> gstr(thumb_map[pos]->get_stream());
|
|
GP<IW44Image> iwpix=IW44Image::create_decode(IW44Image::COLOR);
|
|
iwpix->decode_chunk(gstr);
|
|
|
|
int width=iwpix->get_width();
|
|
int height=iwpix->get_height();
|
|
return width<height ? width : height;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
void
|
|
DjVuDocEditor::remove_thumbnails(void)
|
|
{
|
|
DEBUG_MSG("DjVuDocEditor::remove_thumbnails(): doing it\n");
|
|
DEBUG_MAKE_INDENT(3);
|
|
|
|
unfile_thumbnails();
|
|
|
|
DEBUG_MSG("clearing thumb_map\n");
|
|
GCriticalSectionLock lock(&thumb_lock);
|
|
thumb_map.empty();
|
|
}
|
|
|
|
void
|
|
DjVuDocEditor::unfile_thumbnails(void)
|
|
// Will erase all "THUMBNAILS" files from DjVmDir.
|
|
// This function is useful when filing thumbnails (to get rid of
|
|
// those files, which currently exist: they need to be replaced
|
|
// anyway) and when calling DjVuDocument::get_thumbnail() to
|
|
// be sure, that it will not use wrong information from DjVmDir
|
|
{
|
|
DEBUG_MSG("DjVuDocEditor::unfile_thumbnails(): updating DjVmDir\n");
|
|
DEBUG_MAKE_INDENT(3);
|
|
|
|
{
|
|
GCriticalSectionLock lock(&threqs_lock);
|
|
threqs_list.empty();
|
|
}
|
|
if((const DjVmDir *)djvm_dir)
|
|
{
|
|
GPList<DjVmDir::File> xfiles_list=djvm_dir->get_files_list();
|
|
for(GPosition pos=xfiles_list;pos;++pos)
|
|
{
|
|
GP<DjVmDir::File> f=xfiles_list[pos];
|
|
if (f->is_thumbnails())
|
|
djvm_dir->delete_file(f->get_load_name());
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
DjVuDocEditor::file_thumbnails(void)
|
|
// The purpose of this function is to create files containing
|
|
// thumbnail images and register them in DjVmDir.
|
|
// If some of the thumbnail images are missing, they'll
|
|
// be generated with generate_thumbnails()
|
|
{
|
|
DEBUG_MSG("DjVuDocEditor::file_thumbnails(): updating DjVmDir\n");
|
|
DEBUG_MAKE_INDENT(3);
|
|
unfile_thumbnails();
|
|
|
|
// Generate thumbnails if they're missing due to some reason.
|
|
int thumb_num=get_thumbnails_num();
|
|
int size=thumb_num>0 ? get_thumbnails_size() : 128;
|
|
if (thumb_num!=get_pages_num())
|
|
{
|
|
generate_thumbnails(size);
|
|
}
|
|
|
|
DEBUG_MSG("filing thumbnails\n");
|
|
|
|
GCriticalSectionLock lock(&thumb_lock);
|
|
|
|
// The first thumbnail file always contains only one thumbnail
|
|
int ipf=1;
|
|
int image_num=0;
|
|
int page_num=0, pages_num=djvm_dir->get_pages_num();
|
|
GP<ByteStream> str(ByteStream::create());
|
|
GP<IFFByteStream> iff(IFFByteStream::create(str));
|
|
iff->put_chunk("FORM:THUM");
|
|
for(;;)
|
|
{
|
|
GUTF8String id(page_to_id(page_num));
|
|
const GPosition pos(thumb_map.contains(id));
|
|
if (! pos)
|
|
{
|
|
G_THROW( ERR_MSG("DjVuDocEditor.no_thumb") "\t"+GUTF8String(page_num));
|
|
}
|
|
iff->put_chunk("TH44");
|
|
iff->copy(*(thumb_map[pos]->get_stream()));
|
|
iff->close_chunk();
|
|
image_num++;
|
|
page_num++;
|
|
if (image_num>=ipf || page_num>=pages_num)
|
|
{
|
|
int i=id.rsearch('.');
|
|
if(i<=0)
|
|
{
|
|
i=id.length();
|
|
}
|
|
id=id.substr(0,i)+".thumb";
|
|
// Get unique ID for this file
|
|
id=find_unique_id(id);
|
|
|
|
// Create a file record with the chosen ID
|
|
GP<DjVmDir::File> file(DjVmDir::File::create(id, id, id,
|
|
DjVmDir::File::THUMBNAILS));
|
|
|
|
// Set correct file position (so that it will cover the next
|
|
// ipf pages)
|
|
int file_pos=djvm_dir->get_page_pos(page_num-image_num);
|
|
djvm_dir->insert_file(file, file_pos);
|
|
|
|
// Now add the File record (containing the file URL and DataPool)
|
|
// After we do it a simple save_as() will save the document
|
|
// with the thumbnails. This is because DjVuDocument will see
|
|
// the file in DjVmDir and will ask for data. We will intercept
|
|
// the request for data and will provide this DataPool
|
|
iff->close_chunk();
|
|
str->seek(0);
|
|
const GP<DataPool> file_pool(DataPool::create(str));
|
|
GP<File> f=new File;
|
|
f->pool=file_pool;
|
|
GCriticalSectionLock lock(&files_lock);
|
|
files_map[id]=f;
|
|
|
|
// And create new streams
|
|
str=ByteStream::create();
|
|
iff=IFFByteStream::create(str);
|
|
iff->put_chunk("FORM:THUM");
|
|
image_num=0;
|
|
|
|
// Reset ipf to correct value (after we stored first
|
|
// "exceptional" file with thumbnail for the first page)
|
|
if (page_num==1) ipf=thumbnails_per_file;
|
|
if (page_num>=pages_num) break;
|
|
}
|
|
}
|
|
}
|
|
|
|
int
|
|
DjVuDocEditor::generate_thumbnails(int thumb_size, int page_num)
|
|
{
|
|
DEBUG_MSG("DjVuDocEditor::generate_thumbnails(): doing it\n");
|
|
DEBUG_MAKE_INDENT(3);
|
|
|
|
if(page_num<(djvm_dir->get_pages_num()))
|
|
{
|
|
const GUTF8String id(page_to_id(page_num));
|
|
if (!thumb_map.contains(id))
|
|
{
|
|
const GP<DjVuImage> dimg(get_page(page_num, true));
|
|
|
|
GRect rect(0, 0, thumb_size, dimg->get_height()*thumb_size/dimg->get_width());
|
|
GP<GPixmap> pm=dimg->get_pixmap(rect, rect, get_thumbnails_gamma());
|
|
if (!pm)
|
|
{
|
|
const GP<GBitmap> bm(dimg->get_bitmap(rect, rect, sizeof(int)));
|
|
if (bm)
|
|
pm = GPixmap::create(*bm);
|
|
else
|
|
pm = GPixmap::create(rect.height(), rect.width(), &GPixel::WHITE);
|
|
}
|
|
// Store and compress the pixmap
|
|
const GP<IW44Image> iwpix(IW44Image::create_encode(*pm));
|
|
const GP<ByteStream> gstr(ByteStream::create());
|
|
IWEncoderParms parms;
|
|
parms.slices=97;
|
|
parms.bytes=0;
|
|
parms.decibels=0;
|
|
iwpix->encode_chunk(gstr, parms);
|
|
gstr->seek(0L);
|
|
thumb_map[id]=DataPool::create(gstr);
|
|
}
|
|
++page_num;
|
|
}
|
|
else
|
|
{
|
|
page_num = -1;
|
|
}
|
|
return page_num;
|
|
}
|
|
|
|
void
|
|
DjVuDocEditor::generate_thumbnails(int thumb_size,
|
|
bool (* cb)(int page_num, void *),
|
|
void * cl_data)
|
|
{
|
|
int page_num=0;
|
|
do
|
|
{
|
|
page_num=generate_thumbnails(thumb_size,page_num);
|
|
if (cb) if (cb(page_num, cl_data)) return;
|
|
} while(page_num>=0);
|
|
}
|
|
|
|
static void
|
|
store_file(const GP<DjVmDir> & src_djvm_dir, const GP<DjVmDoc> & djvm_doc,
|
|
GP<DjVuFile> & djvu_file, GMap<GURL, void *> & map)
|
|
{
|
|
GURL url=djvu_file->get_url();
|
|
if (!map.contains(url))
|
|
{
|
|
map[url]=0;
|
|
|
|
// Store included files first
|
|
GPList<DjVuFile> djvu_files_list=djvu_file->get_included_files(false);
|
|
for(GPosition pos=djvu_files_list;pos;++pos)
|
|
store_file(src_djvm_dir, djvm_doc, djvu_files_list[pos], map);
|
|
|
|
// Now store contents of this file
|
|
GP<DataPool> file_data=djvu_file->get_djvu_data(false);
|
|
GP<DjVmDir::File> frec=src_djvm_dir->name_to_file(url.name());
|
|
if (frec)
|
|
{
|
|
frec=new DjVmDir::File(*frec);
|
|
djvm_doc->insert_file(frec, file_data, -1);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
DjVuDocEditor::save_pages_as(
|
|
const GP<ByteStream> &str, const GList<int> & _page_list)
|
|
{
|
|
GList<int> page_list=sortList(_page_list);
|
|
|
|
GP<DjVmDoc> djvm_doc=DjVmDoc::create();
|
|
GMap<GURL, void *> map;
|
|
for(GPosition pos=page_list;pos;++pos)
|
|
{
|
|
GP<DjVmDir::File> frec=djvm_dir->page_to_file(page_list[pos]);
|
|
if (frec)
|
|
{
|
|
GP<DjVuFile> djvu_file=get_djvu_file(frec->get_load_name());
|
|
if (djvu_file)
|
|
store_file(djvm_dir, djvm_doc, djvu_file, map);
|
|
}
|
|
}
|
|
djvm_doc->write(str);
|
|
}
|
|
|
|
void
|
|
DjVuDocEditor::save_file(const GUTF8String &file_id, const GURL &codebase,
|
|
const bool only_modified, GMap<GUTF8String,GUTF8String> & map)
|
|
{
|
|
if(only_modified)
|
|
{
|
|
for(GPosition pos=files_map;pos;++pos)
|
|
{
|
|
const GP<File> file_rec(files_map[pos]);
|
|
const bool file_modified=file_rec->pool ||
|
|
(file_rec->file && file_rec->file->is_modified());
|
|
if(!file_modified)
|
|
{
|
|
const GUTF8String id=files_map.key(pos);
|
|
const GUTF8String save_name(djvm_dir->id_to_file(id)->get_save_name());
|
|
if(id == save_name)
|
|
{
|
|
map[id]=id;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
save_file(file_id,codebase,map);
|
|
}
|
|
|
|
void
|
|
DjVuDocEditor::save_file(
|
|
const GUTF8String &file_id, const GURL &codebase,
|
|
GMap<GUTF8String,GUTF8String> & map)
|
|
{
|
|
DEBUG_MSG("DjVuDocEditor::save_file(): ID='" << file_id << "'\n");
|
|
DEBUG_MAKE_INDENT(3);
|
|
|
|
if (!map.contains(file_id))
|
|
{
|
|
const GP<DjVmDir::File> file(djvm_dir->id_to_file(file_id));
|
|
|
|
GP<DataPool> file_pool;
|
|
const GPosition pos(files_map.contains(file_id));
|
|
if (pos)
|
|
{
|
|
const GP<File> file_rec(files_map[pos]);
|
|
if (file_rec->file)
|
|
file_pool=file_rec->file->get_djvu_data(false);
|
|
else
|
|
file_pool=file_rec->pool;
|
|
}
|
|
|
|
if (!file_pool)
|
|
{
|
|
DjVuPortcaster * pcaster=DjVuPort::get_portcaster();
|
|
file_pool=pcaster->request_data(this, id_to_url(file_id));
|
|
}
|
|
|
|
if (file_pool)
|
|
{
|
|
GMap<GUTF8String,GUTF8String> incl;
|
|
map[file_id]=get_djvm_doc()->save_file(codebase,*file,incl,file_pool);
|
|
for(GPosition pos=incl;pos;++pos)
|
|
{
|
|
save_file(incl.key(pos),codebase ,map);
|
|
}
|
|
}else
|
|
{
|
|
map[file_id]=file->get_save_name();
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
DjVuDocEditor::save(void)
|
|
{
|
|
DEBUG_MSG("DjVuDocEditor::save(): saving the file\n");
|
|
DEBUG_MAKE_INDENT(3);
|
|
|
|
if (!can_be_saved())
|
|
G_THROW( ERR_MSG("DjVuDocEditor.cant_save") );
|
|
save_as(GURL(), orig_doc_type!=INDIRECT);
|
|
}
|
|
|
|
void
|
|
DjVuDocEditor::write(const GP<ByteStream> &gbs, bool force_djvm)
|
|
{
|
|
DEBUG_MSG("DjVuDocEditor::write()\n");
|
|
DEBUG_MAKE_INDENT(3);
|
|
if (get_thumbnails_num()==get_pages_num())
|
|
{
|
|
file_thumbnails();
|
|
}else
|
|
{
|
|
remove_thumbnails();
|
|
}
|
|
clean_files_map();
|
|
DjVuDocument::write(gbs,force_djvm);
|
|
}
|
|
|
|
void
|
|
DjVuDocEditor::write(
|
|
const GP<ByteStream> &gbs,const GMap<GUTF8String,void *> &reserved)
|
|
{
|
|
DEBUG_MSG("DjVuDocEditor::write()\n");
|
|
DEBUG_MAKE_INDENT(3);
|
|
if (get_thumbnails_num()==get_pages_num())
|
|
{
|
|
file_thumbnails();
|
|
}else
|
|
{
|
|
remove_thumbnails();
|
|
}
|
|
clean_files_map();
|
|
DjVuDocument::write(gbs,reserved);
|
|
}
|
|
|
|
void
|
|
DjVuDocEditor::save_as(const GURL &where, bool bundled)
|
|
{
|
|
DEBUG_MSG("DjVuDocEditor::save_as(): where='" << where << "'\n");
|
|
DEBUG_MAKE_INDENT(3);
|
|
|
|
// First see if we need to generate (or just reshuffle) thumbnails...
|
|
// If we have an icon for every page, we will just call
|
|
// file_thumbnails(), which will update DjVmDir and will create
|
|
// the actual bundles with thumbnails (very fast)
|
|
// Otherwise we will remove the thumbnails completely because
|
|
// we really don't want to deal with documents, which have only
|
|
// some of their pages thumbnailed.
|
|
if (get_thumbnails_num()==get_pages_num())
|
|
{
|
|
file_thumbnails();
|
|
}else
|
|
{
|
|
remove_thumbnails();
|
|
}
|
|
|
|
GURL save_doc_url;
|
|
|
|
if (where.is_empty())
|
|
{
|
|
// Assume, that we just want to 'save'. Check, that it's possible
|
|
// and proceed.
|
|
bool can_be_saved_bundled=orig_doc_type==BUNDLED ||
|
|
orig_doc_type==OLD_BUNDLED ||
|
|
orig_doc_type==SINGLE_PAGE ||
|
|
orig_doc_type==OLD_INDEXED && orig_doc_pages==1;
|
|
if ((bundled ^ can_be_saved_bundled)!=0)
|
|
G_THROW( ERR_MSG("DjVuDocEditor.cant_save2") );
|
|
save_doc_url=doc_url;
|
|
} else
|
|
{
|
|
save_doc_url=where;
|
|
}
|
|
|
|
int save_doc_type=bundled ? BUNDLED : INDIRECT;
|
|
|
|
clean_files_map();
|
|
|
|
GCriticalSectionLock lock(&files_lock);
|
|
|
|
DjVuPortcaster * pcaster=DjVuPort::get_portcaster();
|
|
|
|
// First consider saving in SINGLE_FILE format (one file)
|
|
if(needs_compression())
|
|
{
|
|
DEBUG_MSG("Compressing on output\n");
|
|
remove_thumbnails();
|
|
if(! djvu_compress_codec)
|
|
{
|
|
G_THROW( ERR_MSG("DjVuDocEditor.no_codec") );
|
|
}
|
|
const GP<DjVmDoc> doc(get_djvm_doc());
|
|
GP<ByteStream> mbs(ByteStream::create());
|
|
doc->write(mbs);
|
|
mbs->flush();
|
|
mbs->seek(0,SEEK_SET);
|
|
djvu_compress_codec(mbs,save_doc_url,(!(const DjVmDir *)djvm_dir)||(djvm_dir->get_files_num()==1)||(save_doc_type!=INDIRECT));
|
|
files_map.empty();
|
|
doc_url=GURL();
|
|
}else
|
|
{
|
|
if (djvm_dir->get_files_num()==1)
|
|
{
|
|
// Here 'bundled' has no effect: we will save it as one page.
|
|
DEBUG_MSG("saving one file...\n");
|
|
GURL file_url=page_to_url(0);
|
|
const GUTF8String file_id(djvm_dir->page_to_file(0)->get_load_name());
|
|
GP<DataPool> file_pool;
|
|
GPosition pos=files_map.contains(file_id);
|
|
if (pos)
|
|
{
|
|
const GP<File> file_rec(files_map[pos]);
|
|
if (file_rec->pool && (!file_rec->file ||
|
|
!file_rec->file->is_modified()))
|
|
{
|
|
file_pool=file_rec->pool;
|
|
}else if (file_rec->file)
|
|
{
|
|
file_pool=file_rec->file->get_djvu_data(false);
|
|
}
|
|
}
|
|
// Even if file has not been modified (pool==0) we still want
|
|
// to save it.
|
|
if (!file_pool)
|
|
file_pool=pcaster->request_data(this, file_url);
|
|
if (file_pool)
|
|
{
|
|
DEBUG_MSG("Saving '" << file_url << "' to '" << save_doc_url << "'\n");
|
|
DataPool::load_file(save_doc_url);
|
|
const GP<ByteStream> gstr_out(ByteStream::create(save_doc_url, "wb"));
|
|
ByteStream &str_out=*gstr_out;
|
|
str_out.writall(octets, 4);
|
|
const GP<ByteStream> str_in(file_pool->get_stream());
|
|
str_out.copy(*str_in);
|
|
}
|
|
|
|
// Update the document's DataPool (to save memory)
|
|
const GP<DjVmDoc> doc(get_djvm_doc());
|
|
const GP<ByteStream> gstr=ByteStream::create();// One page: we can do it in the memory
|
|
doc->write(gstr);
|
|
gstr->seek(0, SEEK_SET);
|
|
const GP<DataPool> pool(DataPool::create(gstr));
|
|
doc_pool=pool;
|
|
init_data_pool=pool;
|
|
|
|
// Also update DjVmDir (to reflect changes in offsets)
|
|
djvm_dir=doc->get_djvm_dir();
|
|
} else if (save_doc_type==INDIRECT)
|
|
{
|
|
DEBUG_MSG("Saving in INDIRECT format to '" << save_doc_url << "'\n");
|
|
bool save_only_modified=!(save_doc_url!=doc_url || save_doc_type!=orig_doc_type);
|
|
GPList<DjVmDir::File> xfiles_list=djvm_dir->resolve_duplicates(false);
|
|
const GURL codebase=save_doc_url.base();
|
|
int pages_num=djvm_dir->get_pages_num();
|
|
GMap<GUTF8String, GUTF8String> map;
|
|
// First go thru the pages
|
|
for(int page_num=0;page_num<pages_num;page_num++)
|
|
{
|
|
const GUTF8String id(djvm_dir->page_to_file(page_num)->get_load_name());
|
|
save_file(id, codebase, save_only_modified, map);
|
|
}
|
|
// Next go thru thumbnails and similar stuff
|
|
GPosition pos;
|
|
for(pos=xfiles_list;pos;++pos)
|
|
save_file(xfiles_list[pos]->get_load_name(), codebase, save_only_modified, map);
|
|
|
|
// Finally - save the top-level index file
|
|
for(pos=xfiles_list;pos;++pos)
|
|
{
|
|
const GP<DjVmDir::File> file(xfiles_list[pos]);
|
|
file->offset=0;
|
|
file->size=0;
|
|
}
|
|
DataPool::load_file(save_doc_url);
|
|
const GP<ByteStream> gstr(ByteStream::create(save_doc_url, "wb"));
|
|
const GP<IFFByteStream> giff(IFFByteStream::create(gstr));
|
|
IFFByteStream &iff=*giff;
|
|
|
|
iff.put_chunk("FORM:DJVM", 1);
|
|
iff.put_chunk("DIRM");
|
|
djvm_dir->encode(giff->get_bytestream());
|
|
iff.close_chunk();
|
|
iff.close_chunk();
|
|
iff.flush();
|
|
|
|
// Update the document data pool (not required, but will save memory)
|
|
doc_pool=DataPool::create(save_doc_url);
|
|
init_data_pool=doc_pool;
|
|
|
|
// No reason to update DjVmDir as for this format it doesn't
|
|
// contain DJVM offsets
|
|
} else if (save_doc_type==BUNDLED || save_doc_type==OLD_BUNDLED)
|
|
{
|
|
DEBUG_MSG("Saving in BUNDLED format to '" << save_doc_url << "'\n");
|
|
|
|
// Can't be very smart here. Simply overwrite the file.
|
|
const GP<DjVmDoc> doc(get_djvm_doc());
|
|
DataPool::load_file(save_doc_url);
|
|
const GP<ByteStream> gstr(ByteStream::create(save_doc_url, "wb"));
|
|
doc->write(gstr);
|
|
gstr->flush();
|
|
|
|
// Update the document data pool (not required, but will save memory)
|
|
doc_pool=DataPool::create(save_doc_url);
|
|
init_data_pool=doc_pool;
|
|
|
|
// Also update DjVmDir (to reflect changes in offsets)
|
|
djvm_dir=doc->get_djvm_dir();
|
|
} else
|
|
{
|
|
G_THROW( ERR_MSG("DjVuDocEditor.cant_save") );
|
|
}
|
|
|
|
// Now, after we have saved the document w/o any error, detach DataPools,
|
|
// which are in the 'File's list to save memory. Detach everything.
|
|
// Even in the case when File->file is non-zero. If File->file is zero,
|
|
// remove the item from the list at all. If it's non-zero, it has
|
|
// to stay there because by definition files_map[] contains the list
|
|
// of all active files and customized DataPools
|
|
//
|
|
// In addition to it, look thru all active files and change their URLs
|
|
// to reflect changes in the document's URL (if there was a change)
|
|
// Another reason why file's URLs must be changed is that we may have
|
|
// saved the document in a different format, which changes the rules
|
|
// of file url composition.
|
|
for(GPosition pos=files_map;pos;)
|
|
{
|
|
const GP<File> file_rec(files_map[pos]);
|
|
file_rec->pool=0;
|
|
if (file_rec->file==0)
|
|
{
|
|
GPosition this_pos=pos;
|
|
++pos;
|
|
files_map.del(this_pos);
|
|
} else
|
|
{
|
|
// Change the file's url;
|
|
if (doc_url!=save_doc_url ||
|
|
orig_doc_type!=save_doc_type)
|
|
if (save_doc_type==BUNDLED)
|
|
file_rec->file->move(save_doc_url);
|
|
else file_rec->file->move(save_doc_url.base());
|
|
++pos;
|
|
}
|
|
}
|
|
|
|
}
|
|
orig_doc_type=save_doc_type;
|
|
doc_type=save_doc_type;
|
|
|
|
if (doc_url!=save_doc_url)
|
|
{
|
|
// Also update document's URL (we moved, didn't we?)
|
|
doc_url=save_doc_url;
|
|
init_url=save_doc_url;
|
|
}
|
|
}
|
|
|
|
GP<DjVuDocEditor>
|
|
DjVuDocEditor::create_wait(void)
|
|
{
|
|
DjVuDocEditor *doc=new DjVuDocEditor();
|
|
const GP<DjVuDocEditor> retval(doc);
|
|
doc->init();
|
|
return retval;
|
|
}
|
|
|
|
GP<DjVuDocEditor>
|
|
DjVuDocEditor::create_wait(const GURL &url)
|
|
{
|
|
DjVuDocEditor *doc=new DjVuDocEditor();
|
|
const GP<DjVuDocEditor> retval(doc);
|
|
doc->init(url);
|
|
return retval;
|
|
}
|
|
|
|
bool
|
|
DjVuDocEditor::inherits(const GUTF8String &class_name) const
|
|
{
|
|
return (class_name == "DjVuDocEditor")||DjVuDocument::inherits(class_name);
|
|
}
|
|
|
|
int
|
|
DjVuDocEditor::get_orig_doc_type(void) const
|
|
{
|
|
return orig_doc_type;
|
|
}
|
|
|
|
bool
|
|
DjVuDocEditor::can_be_saved(void) const
|
|
{
|
|
return !(needs_rename()||needs_compression()||orig_doc_type==UNKNOWN_TYPE ||
|
|
orig_doc_type==OLD_INDEXED);
|
|
}
|
|
|
|
int
|
|
DjVuDocEditor::get_save_doc_type(void) const
|
|
{
|
|
if (orig_doc_type==SINGLE_PAGE)
|
|
if (djvm_dir->get_files_num()==1)
|
|
return SINGLE_PAGE;
|
|
else
|
|
return BUNDLED;
|
|
else if (orig_doc_type==INDIRECT)
|
|
return INDIRECT;
|
|
else if (orig_doc_type==OLD_BUNDLED || orig_doc_type==BUNDLED)
|
|
return BUNDLED;
|
|
else
|
|
return UNKNOWN_TYPE;
|
|
}
|
|
|
|
GURL
|
|
DjVuDocEditor::get_doc_url(void) const
|
|
{
|
|
return doc_url.is_empty() ? init_url : doc_url;
|
|
}
|
|
|
|
|
|
|
|
#ifdef HAVE_NAMESPACES
|
|
}
|
|
# ifndef NOT_USING_DJVU_NAMESPACE
|
|
using namespace DJVU;
|
|
# endif
|
|
#endif
|