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diff --git a/kviewshell/plugins/djvu/libdjvu/DjVmDoc.cpp b/kviewshell/plugins/djvu/libdjvu/DjVmDoc.cpp
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+//C- -*- C++ -*-
+//C- -------------------------------------------------------------------
+//C- DjVuLibre-3.5
+//C- Copyright (c) 2002 Leon Bottou and Yann Le Cun.
+//C- Copyright (c) 2001 AT&T
+//C-
+//C- This software is subject to, and may be distributed under, the
+//C- GNU General Public License, Version 2. The license should have
+//C- accompanied the software or you may obtain a copy of the license
+//C- from the Free Software Foundation at http://www.fsf.org .
+//C-
+//C- This program is distributed in the hope that it will be useful,
+//C- but WITHOUT ANY WARRANTY; without even the implied warranty of
+//C- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+//C- GNU General Public License for more details.
+//C-
+//C- DjVuLibre-3.5 is derived from the DjVu(r) Reference Library
+//C- distributed by Lizardtech Software. On July 19th 2002, Lizardtech
+//C- Software authorized us to replace the original DjVu(r) Reference
+//C- Library notice by the following text (see doc/lizard2002.djvu):
+//C-
+//C- ------------------------------------------------------------------
+//C- | DjVu (r) Reference Library (v. 3.5)
+//C- | Copyright (c) 1999-2001 LizardTech, Inc. All Rights Reserved.
+//C- | The DjVu Reference Library is protected by U.S. Pat. No.
+//C- | 6,058,214 and patents pending.
+//C- |
+//C- | This software is subject to, and may be distributed under, the
+//C- | GNU General Public License, Version 2. The license should have
+//C- | accompanied the software or you may obtain a copy of the license
+//C- | from the Free Software Foundation at http://www.fsf.org .
+//C- |
+//C- | The computer code originally released by LizardTech under this
+//C- | license and unmodified by other parties is deemed "the LIZARDTECH
+//C- | ORIGINAL CODE." Subject to any third party intellectual property
+//C- | claims, LizardTech grants recipient a worldwide, royalty-free,
+//C- | non-exclusive license to make, use, sell, or otherwise dispose of
+//C- | the LIZARDTECH ORIGINAL CODE or of programs derived from the
+//C- | LIZARDTECH ORIGINAL CODE in compliance with the terms of the GNU
+//C- | General Public License. This grant only confers the right to
+//C- | infringe patent claims underlying the LIZARDTECH ORIGINAL CODE to
+//C- | the extent such infringement is reasonably necessary to enable
+//C- | recipient to make, have made, practice, sell, or otherwise dispose
+//C- | of the LIZARDTECH ORIGINAL CODE (or portions thereof) and not to
+//C- | any greater extent that may be necessary to utilize further
+//C- | modifications or combinations.
+//C- |
+//C- | The LIZARDTECH ORIGINAL CODE is provided "AS IS" WITHOUT WARRANTY
+//C- | OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
+//C- | TO ANY WARRANTY OF NON-INFRINGEMENT, OR ANY IMPLIED WARRANTY OF
+//C- | MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
+//C- +------------------------------------------------------------------
+//
+// $Id: DjVmDoc.cpp,v 1.10 2005/05/25 20:24:52 leonb Exp $
+// $Name: release_3_5_15 $
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+#if NEED_GNUG_PRAGMAS
+# pragma implementation
+#endif
+
+#include "DjVmDoc.h"
+#include "DjVmNav.h"
+#include "DataPool.h"
+#include "IFFByteStream.h"
+#include "GOS.h"
+#include "debug.h"
+
+
+#ifdef HAVE_NAMESPACES
+namespace DJVU {
+# ifdef NOT_DEFINED // Just to fool emacs c++ mode
+}
+#endif
+#endif
+
+static const char octets[4]={0x41,0x54,0x26,0x54};
+
+// Save the file to disk, remapping INCL chunks while saving.
+static void
+save_file(
+ IFFByteStream &iff_in, IFFByteStream &iff_out, const DjVmDir &dir,
+ GMap<GUTF8String,GUTF8String> &incl)
+{
+ GUTF8String chkid;
+ if (iff_in.get_chunk(chkid))
+ {
+ iff_out.put_chunk(chkid,true);
+ if(!chkid.cmp("FORM:",5))
+ {
+ for(;iff_in.get_chunk(chkid);iff_in.close_chunk())
+ {
+ iff_out.put_chunk(chkid);
+ if(chkid == "INCL")
+ {
+ GUTF8String incl_str;
+ char buffer[1024];
+ int length;
+ while((length=iff_in.read(buffer, 1024)))
+ incl_str+=GUTF8String(buffer, length);
+ // Eat '\n' in the beginning and at the end
+ while(incl_str.length() && incl_str[0]=='\n')
+ {
+ incl_str=incl_str.substr(1,(unsigned int)(-1));
+ }
+ while(incl_str.length()>0 && incl_str[(int)incl_str.length()-1]=='\n')
+ {
+ incl_str.setat(incl_str.length()-1, 0);
+ }
+ GPosition pos=incl.contains(incl_str);
+ if(pos)
+ {
+ iff_out.get_bytestream()->writestring(incl[pos]);
+ }else
+ {
+ GP<DjVmDir::File> incl_file=dir.id_to_file(incl_str);
+ if(incl_file)
+ {
+ DEBUG_MSG("INCL '"<<(const char *)incl_file->get_save_name()<<"'\n");
+ const GUTF8String incl_name=incl_file->get_save_name();
+ incl[incl_str]=incl_name;
+ iff_out.get_bytestream()->writestring(incl_name);
+ }else
+ {
+ DEBUG_MSG("BOGUS INCL '"<<(const char *)incl_str<<"'\n");
+ iff_out.copy(*iff_in.get_bytestream());
+ }
+ }
+ }else
+ {
+ iff_out.copy(*iff_in.get_bytestream());
+ }
+ iff_out.close_chunk();
+ }
+ }else
+ {
+ iff_out.copy(*iff_in.get_bytestream());
+ }
+ iff_out.close_chunk();
+ iff_in.close_chunk();
+ }
+}
+
+DjVmDoc::DjVmDoc(void)
+{
+ DEBUG_MSG("DjVmDoc::DjVmDoc(): Constructing empty DjVm document.\n");
+ DEBUG_MAKE_INDENT(3);
+}
+
+void
+DjVmDoc::init(void)
+{
+ dir=DjVmDir::create();
+}
+
+GP<DjVmDoc>
+DjVmDoc::create(void)
+{
+ DjVmDoc *doc=new DjVmDoc();
+ GP<DjVmDoc> retval=doc;
+ doc->init();
+ return retval;
+}
+
+void
+DjVmDoc::insert_file(const GP<DjVmDir::File> & f,
+ GP<DataPool> data_pool, int pos)
+{
+ DEBUG_MSG("DjVmDoc::insert_file(): inserting file '" << f->get_load_name() <<
+ "' at pos " << pos << "\n");
+ DEBUG_MAKE_INDENT(3);
+
+ if (!f)
+ G_THROW( ERR_MSG("DjVmDoc.no_zero_file") );
+ if (data.contains(f->get_load_name()))
+ G_THROW( ERR_MSG("DjVmDoc.no_duplicate") );
+
+ char buffer[4];
+ if (data_pool->get_data(buffer, 0, 4)==4 && !memcmp(buffer, octets, 4))
+ {
+ data_pool=DataPool::create(data_pool, 4, -1);
+ }
+ data[f->get_load_name()]=data_pool;
+ dir->insert_file(f, pos);
+}
+
+void
+DjVmDoc::insert_file(
+ ByteStream &data, DjVmDir::File::FILE_TYPE file_type,
+ const GUTF8String &name, const GUTF8String &id, const GUTF8String &title,
+ int pos)
+{
+ const GP<DjVmDir::File> file(
+ DjVmDir::File::create(name, id, title, file_type));
+ const GP<DataPool> pool(DataPool::create());
+ // Cannot connect to a bytestream.
+ // Must copy data into the datapool.
+ int nbytes;
+ char buffer[1024];
+ while ((nbytes = data.read(buffer, sizeof(buffer))))
+ pool->add_data(buffer, nbytes);
+ pool->set_eof();
+ // Call low level insert
+ insert_file(file, pool, pos);
+}
+
+void
+DjVmDoc::insert_file(
+ const GP<DataPool> &pool, DjVmDir::File::FILE_TYPE file_type,
+ const GUTF8String &name, const GUTF8String &id, const GUTF8String &title,
+ int pos)
+{
+ const GP<DjVmDir::File> file(
+ DjVmDir::File::create(name, id, title, file_type));
+ // Call low level insert
+ insert_file(file, pool, pos);
+}
+
+void
+DjVmDoc::delete_file(const GUTF8String &id)
+{
+ DEBUG_MSG("DjVmDoc::delete_file(): deleting file '" << id << "'\n");
+ DEBUG_MAKE_INDENT(3);
+
+ if (!data.contains(id))
+ G_THROW(GUTF8String( ERR_MSG("DjVmDoc.cant_delete") "\t") + id);
+
+ data.del(id);
+ dir->delete_file(id);
+}
+
+void
+DjVmDoc::set_djvm_nav(GP<DjVmNav> n)
+{
+ if (n && ! n->isValidBookmark())
+ G_THROW("Invalid bookmark data");
+ nav = n;
+}
+
+GP<DataPool>
+DjVmDoc::get_data(const GUTF8String &id) const
+{
+ GPosition pos;
+ if (!data.contains(id, pos))
+ G_THROW(GUTF8String( ERR_MSG("DjVmDoc.cant_find") "\t") + id);
+ const GP<DataPool> pool(data[pos]);
+ // First check that the file is in IFF format
+ G_TRY
+ {
+ const GP<ByteStream> str_in(pool->get_stream());
+ const GP<IFFByteStream> giff_in=IFFByteStream::create(str_in);
+ IFFByteStream &iff_in=*giff_in;
+ GUTF8String chkid;
+ int size=iff_in.get_chunk(chkid);
+ if (size<0 || size>0x7fffffff)
+ G_THROW( ERR_MSG("DjVmDoc.not_IFF") "\t" + id);
+ }
+ G_CATCH_ALL
+ {
+ G_THROW( ERR_MSG("DjVmDoc.not_IFF") "\t" + id);
+ }
+ G_ENDCATCH;
+ return pool;
+}
+
+void
+DjVmDoc::write(const GP<ByteStream> &gstr)
+{
+ const GMap<GUTF8String,void *> reserved;
+ write(gstr,reserved);
+}
+
+static inline GUTF8String
+get_name(const DjVmDir::File &file)
+{
+ const GUTF8String save_name(file.get_save_name());
+ return save_name.length()?save_name:(file.get_load_name());
+}
+
+void
+DjVmDoc::write(const GP<ByteStream> &gstr,
+ const GMap<GUTF8String,void *> &reserved)
+{
+ DEBUG_MSG("DjVmDoc::write(): Storing document into the byte stream.\n");
+ DEBUG_MAKE_INDENT(3);
+
+ GPList<DjVmDir::File> files_list=dir->resolve_duplicates(true);
+ bool do_rename=false;
+ GPosition pos(reserved);
+
+ GMap<GUTF8String,GUTF8String> incl;
+ DEBUG_MSG("pass 1: looking for reserved names.");
+ if(pos)
+ {
+ // Check if there are any conflicting file names.
+ for(pos=files_list;pos;++pos)
+ {
+ GP<DjVmDir::File> file=files_list[pos];
+ if((do_rename=(reserved.contains(file->get_load_name())?true:false))
+ ||(do_rename=(reserved.contains(file->get_save_name())?true:false)))
+ {
+ break;
+ }
+ }
+ // If there are conflicting file names, check if the save names
+ // are OK. If not, generate new save names.
+ if(do_rename)
+ {
+ DEBUG_MSG("pass 1: renaming reserved names.");
+ for(;;files_list=dir->resolve_duplicates(true))
+ {
+ GMap<GUTF8String,void *> this_doc;
+ for(pos=files_list;pos;++pos)
+ {
+ GP<DjVmDir::File> file=files_list[pos];
+ this_doc[::get_name(*file)]=0;
+ }
+ bool need_new_list=false;
+ for(pos=files_list;pos;++pos)
+ {
+ GP<DjVmDir::File> file=files_list[pos];
+ const GUTF8String name(::get_name(*file));
+ if(reserved.contains(name))
+ {
+ GUTF8String new_name;
+ int series=0;
+ do
+ {
+ int dot=name.rsearch('.');
+ if(dot>0)
+ {
+ new_name=name.substr(0,dot)+
+ "_"+GUTF8String(++series)+name.substr(dot,-1);
+ }else
+ {
+ new_name=name+"_"+GUTF8String(++series);
+ }
+ } while(reserved.contains(new_name)||this_doc.contains(new_name));
+ dir->set_file_name(file->get_load_name(),new_name);
+ need_new_list=true;
+ }
+ }
+ if(!need_new_list)
+ break;
+ }
+ }
+ }
+
+ DEBUG_MSG("pass 2: create dummy DIRM chunk and calculate offsets...\n");
+ for(pos=files_list;pos;++pos)
+ {
+ GP<DjVmDir::File> file=files_list[pos];
+ file->offset=0xffffffff;
+ GPosition data_pos=data.contains(file->get_load_name());
+ if (!data_pos)
+ G_THROW( ERR_MSG("DjVmDoc.no_data") "\t" + file->get_load_name());
+ if(do_rename)
+ {
+ GP<ByteStream> gout(ByteStream::create());
+ {
+ const GP<IFFByteStream> giff_in(
+ IFFByteStream::create(data[data_pos]->get_stream()));
+ const GP<IFFByteStream> giff_out(IFFByteStream::create(gout));
+ ::save_file(*giff_in,*giff_out,*dir,incl);
+ }
+ gout->seek(0L);
+ data[data_pos]=DataPool::create(gout);
+ }
+ file->size=data[data_pos]->get_length();
+ if (!file->size)
+ G_THROW( ERR_MSG("DjVmDoc.zero_file") );
+ }
+
+ const GP<ByteStream> tmp_str(ByteStream::create());
+ const GP<IFFByteStream> gtmp_iff(IFFByteStream::create(tmp_str));
+ IFFByteStream &tmp_iff=*gtmp_iff;
+ tmp_iff.put_chunk("FORM:DJVM", 1);
+ tmp_iff.put_chunk("DIRM");
+ dir->encode(tmp_iff.get_bytestream(),do_rename);
+ tmp_iff.close_chunk();
+ if (nav)
+ {
+ tmp_iff.put_chunk("NAVM");
+ nav->encode(tmp_iff.get_bytestream());
+ tmp_iff.close_chunk();
+ }
+ tmp_iff.close_chunk();
+ int offset=tmp_iff.tell();
+
+ for(pos=files_list;pos;++pos)
+ {
+ if ((offset & 1)!=0)
+ offset++;
+
+ GP<DjVmDir::File> & file=files_list[pos];
+ file->offset=offset;
+ offset+=file->size; // file->size has been set in the first pass
+ }
+
+ DEBUG_MSG("pass 3: store the file contents.\n");
+
+ GP<IFFByteStream> giff=IFFByteStream::create(gstr);
+ IFFByteStream &iff=*giff;
+ iff.put_chunk("FORM:DJVM", 1);
+ iff.put_chunk("DIRM");
+ dir->encode(iff.get_bytestream(),do_rename);
+ iff.close_chunk();
+ if (nav)
+ {
+ iff.put_chunk("NAVM");
+ nav->encode(iff.get_bytestream());
+ iff.close_chunk();
+ }
+
+ for(pos=files_list;pos;++pos)
+ {
+ GP<DjVmDir::File> & file=files_list[pos];
+
+ const GP<DataPool> pool=get_data(file->get_load_name());
+ const GP<ByteStream> str_in(pool->get_stream());
+ if ((iff.tell() & 1)!=0)
+ {
+ iff.get_bytestream()->write8(0);
+ }
+ iff.copy(*str_in);
+ }
+
+ iff.close_chunk();
+ iff.flush();
+
+ DEBUG_MSG("done storing DjVm file.\n");
+}
+
+void
+DjVmDoc::read(const GP<DataPool> & pool)
+{
+ DEBUG_MSG("DjVmDoc::read(): reading the BUNDLED doc contents from the pool\n");
+ DEBUG_MAKE_INDENT(3);
+
+ const GP<ByteStream> str(pool->get_stream());
+
+ GP<IFFByteStream> giff=IFFByteStream::create(str);
+ IFFByteStream &iff=*giff;
+ GUTF8String chkid;
+ iff.get_chunk(chkid);
+ if (chkid!="FORM:DJVM")
+ G_THROW( ERR_MSG("DjVmDoc.no_form_djvm") );
+
+ iff.get_chunk(chkid);
+ if (chkid!="DIRM")
+ G_THROW( ERR_MSG("DjVmDoc.no_dirm_chunk") );
+ dir->decode(iff.get_bytestream());
+ iff.close_chunk();
+
+ data.empty();
+
+ if (dir->is_indirect())
+ G_THROW( ERR_MSG("DjVmDoc.cant_read_indr") );
+
+ GPList<DjVmDir::File> files_list=dir->get_files_list();
+ for(GPosition pos=files_list;pos;++pos)
+ {
+ DjVmDir::File * f=files_list[pos];
+
+ DEBUG_MSG("reading contents of file '" << f->get_load_name() << "'\n");
+ data[f->get_load_name()]=DataPool::create(pool, f->offset, f->size);
+ }
+}
+
+void
+DjVmDoc::read(ByteStream & str_in)
+{
+ DEBUG_MSG("DjVmDoc::read(): reading the BUNDLED doc contents from the stream\n");
+ DEBUG_MAKE_INDENT(3);
+
+ GP<DataPool> pool=DataPool::create();
+ char buffer[1024];
+ int length;
+ while((length=str_in.read(buffer, 1024)))
+ pool->add_data(buffer, length);
+ pool->set_eof();
+
+ read(pool);
+}
+
+void
+DjVmDoc::read(const GURL &url)
+{
+ DEBUG_MSG("DjVmDoc::read(): reading the doc contents from the HDD\n");
+ DEBUG_MAKE_INDENT(3);
+
+ GP<DataPool> pool=DataPool::create(url);
+ const GP<ByteStream> str(pool->get_stream());
+ GP<IFFByteStream> giff=IFFByteStream::create(str);
+ IFFByteStream &iff=*giff;
+ GUTF8String chkid;
+ iff.get_chunk(chkid);
+ if (chkid!="FORM:DJVM")
+ G_THROW( ERR_MSG("DjVmDoc.no_form_djvm2") );
+
+ iff.get_chunk(chkid);
+ if (chkid!="DIRM")
+ G_THROW( ERR_MSG("DjVmDoc.no_dirm_chunk") );
+ dir->decode(iff.get_bytestream());
+ iff.close_chunk();
+
+ if (dir->is_bundled())
+ read(pool);
+ else
+ {
+// GUTF8String full_name=GOS::expand_name(name);
+// GUTF8String dir_name=GOS::dirname(GOS::url_to_filename(url.base()));
+ GURL dirbase=url.base();
+
+ data.empty();
+
+ GPList<DjVmDir::File> files_list=dir->get_files_list();
+ for(GPosition pos=files_list;pos;++pos)
+ {
+ DjVmDir::File * f=files_list[pos];
+
+ DEBUG_MSG("reading contents of file '" << f->get_load_name() << "'\n");
+
+ const GURL::UTF8 url(f->get_load_name(),dirbase);
+ data[f->get_load_name()]=DataPool::create(url);
+ }
+ }
+}
+
+void
+DjVmDoc::write_index(const GP<ByteStream> &str)
+{
+ DEBUG_MSG("DjVmDoc::write_index(): Storing DjVm index file\n");
+ DEBUG_MAKE_INDENT(3);
+
+ GPList<DjVmDir::File> files_list=dir->get_files_list();
+ for(GPosition pos=files_list;pos;++pos)
+ {
+ GP<DjVmDir::File> file=files_list[pos];
+ file->offset=0;
+
+ GPosition data_pos=data.contains(file->get_load_name());
+ if (!data_pos)
+ G_THROW( ERR_MSG("DjVmDoc.no_data") "\t" + file->get_load_name());
+ file->size=data[data_pos]->get_length();
+ if (!file->size)
+ G_THROW( ERR_MSG("DjVmDoc.zero_file") );
+ }
+
+ GP<IFFByteStream> giff=IFFByteStream::create(str);
+ IFFByteStream &iff=*giff;
+ iff.put_chunk("FORM:DJVM", 1);
+ iff.put_chunk("DIRM");
+ dir->encode(iff.get_bytestream());
+ iff.close_chunk();
+ if (nav)
+ {
+ iff.put_chunk("NAVM");
+ nav->encode(iff.get_bytestream());
+ iff.close_chunk();
+ }
+ iff.close_chunk();
+ iff.flush();
+}
+
+void
+DjVmDoc::save_page(
+ const GURL &codebase, const DjVmDir::File &file) const
+{
+ GMap<GUTF8String,GUTF8String> incl;
+ save_file(codebase,file,&incl);
+}
+
+void
+DjVmDoc::save_page(
+ const GURL &codebase, const DjVmDir::File &file,
+ GMap<GUTF8String,GUTF8String> &incl ) const
+{
+ save_file(codebase,file,&incl);
+}
+
+void
+DjVmDoc::save_file(
+ const GURL &codebase, const DjVmDir::File &file) const
+{
+ save_file(codebase,file,0);
+}
+
+GUTF8String
+DjVmDoc::save_file(const GURL &codebase, const DjVmDir::File &file,
+ GMap<GUTF8String,GUTF8String> &incl, const GP<DataPool> &pool) const
+{
+ const GUTF8String save_name(file.get_save_name());
+ const GURL::UTF8 new_url(save_name,codebase);
+ DEBUG_MSG("storing file '"<<new_url<<"'\n");
+ DataPool::load_file(new_url);
+ const GP<ByteStream> str_in(pool->get_stream());
+ const GP<ByteStream> str_out(ByteStream::create(new_url, "wb"));
+ ::save_file( *IFFByteStream::create(str_in),
+ *IFFByteStream::create(str_out), *dir, incl);
+ return save_name;
+}
+
+void
+DjVmDoc::save_file(
+ const GURL &codebase, const DjVmDir::File &file,
+ GMap<GUTF8String,GUTF8String> *incl) const
+{
+ const GUTF8String load_name=file.get_load_name();
+ if(!incl || !incl->contains(load_name))
+ {
+ GMap<GUTF8String,GUTF8String> new_incl;
+ const GUTF8String save_name(
+ save_file(codebase,file,new_incl,get_data(load_name)));
+
+ if(incl)
+ {
+ (*incl)[load_name]=save_name;
+ for(GPosition pos=new_incl;pos;++pos)
+ {
+ save_file(codebase,file,incl);
+ }
+ }
+ }
+}
+
+void
+DjVmDoc::expand(const GURL &codebase, const GUTF8String &idx_name)
+{
+ DEBUG_MSG("DjVmDoc::expand(): Expanding into '" << codebase << "'\n");
+ DEBUG_MAKE_INDENT(3);
+
+ // Resolve any name conflicts
+ // Find the list of all files.
+ GPList<DjVmDir::File> files_list=dir->resolve_duplicates(false);
+
+ // store each file
+ for(GPosition pos=files_list;pos;++pos)
+ {
+ save_file(codebase,*files_list[pos]);
+ }
+
+ if (idx_name.length())
+ {
+ const GURL::UTF8 idx_url(idx_name, codebase);
+
+ DEBUG_MSG("storing index file '" << idx_url << "'\n");
+
+ DataPool::load_file(idx_url);
+ GP<ByteStream> str=ByteStream::create(idx_url, "wb");
+ write_index(str);
+ }
+}
+
+
+#ifdef HAVE_NAMESPACES
+}
+# ifndef NOT_USING_DJVU_NAMESPACE
+using namespace DJVU;
+# endif
+#endif
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-13 04:08:59 +0000