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IsStorageFile without downloading whole file

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This commit is contained in:
Mathias Bauer 2000-10-16 13:11:51 +00:00
parent 85a28d0099
commit cd2790c9d1
5 changed files with 29 additions and 11 deletions
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5
sot/inc/stg.hxx
View file

@ -2,9 +2,9 @@
*
* $RCSfile: stg.hxx,v $
*
* $Revision: 1.1.1.1 $
* $Revision: 1.2 $
*
* last change: $Author: hr $ $Date: 2000-09-18 16:56:50 $
* last change: $Author: mba $ $Date: 2000-10-16 14:05:36 $
*
* The Contents of this file are made available subject to the terms of
* either of the following licenses
@ -132,6 +132,7 @@ public:
BOOL bDirect = TRUE );
~Storage();
static BOOL IsStorageFile( const String & rFileName );
static BOOL IsStorageFile( SvStream* );
const String& GetName() const;
BOOL IsRoot() const { return bIsRoot; }

10
sot/source/sdstor/stg.cxx
View file

@ -2,9 +2,9 @@
*
* $RCSfile: stg.cxx,v $
*
* $Revision: 1.2 $
* $Revision: 1.3 $
*
* last change: $Author: mm $ $Date: 2000-10-12 16:18:50 $
* last change: $Author: mba $ $Date: 2000-10-16 14:08:34 $
*
* The Contents of this file are made available subject to the terms of
* either of the following licenses
@ -332,6 +332,12 @@ BOOL Storage::IsStorageFile( const String & rFileName )
return FALSE;
}
BOOL Storage::IsStorageFile( SvStream* pStream )
{
StgHeader aHdr;
return ( pStream && aHdr.Load( *pStream ) && aHdr.Check() );
}
// Open the storage file. If writing is permitted and the file is not
// a storage file, initialize it.

12
sot/source/sdstor/stgelem.cxx
View file

@ -2,9 +2,9 @@
*
* $RCSfile: stgelem.cxx,v $
*
* $Revision: 1.1.1.1 $
* $Revision: 1.2 $
*
* last change: $Author: hr $ $Date: 2000-09-18 16:56:51 $
* last change: $Author: mba $ $Date: 2000-10-16 14:08:34 $
*
* The Contents of this file are made available subject to the terms of
* either of the following licenses
@ -133,6 +133,12 @@ void StgHeader::Init()
BOOL StgHeader::Load( StgIo& rIo )
{
SvStream& r = *rIo.GetStrm();
Load( r );
return rIo.Good();
}
BOOL StgHeader::Load( SvStream& r )
{
r.Seek( 0L );
r.Read( cSignature, 8 );
r >> aClsId // 08 Class ID
@ -151,7 +157,7 @@ BOOL StgHeader::Load( StgIo& rIo )
>> nMaster; // 48 # of additional master blocks
for( short i = 0; i < 109; i++ )
r >> nMasterFAT[ i ];
return rIo.Good();
return r.GetErrorCode() == ERRCODE_NONE;
}
BOOL StgHeader::Store( StgIo& rIo )

5
sot/source/sdstor/stgelem.hxx
View file

@ -2,9 +2,9 @@
*
* $RCSfile: stgelem.hxx,v $
*
* $Revision: 1.1.1.1 $
* $Revision: 1.2 $
*
* last change: $Author: hr $ $Date: 2000-09-18 16:56:51 $
* last change: $Author: mba $ $Date: 2000-10-16 14:08:34 $
*
* The Contents of this file are made available subject to the terms of
* either of the following licenses
@ -106,6 +106,7 @@ public:
StgHeader();
void Init(); // initialize the header
BOOL Load( StgIo& );
BOOL Load( SvStream& );
BOOL Store( StgIo& );
BOOL Check(); // check the signature and version
short GetByteOrder() const { return nByteOrder; }

8
sot/source/sdstor/storage.cxx
View file

@ -2,9 +2,9 @@
*
* $RCSfile: storage.cxx,v $
*
* $Revision: 1.2 $
* $Revision: 1.3 $
*
* last change: $Author: mm $ $Date: 2000-10-12 16:18:51 $
* last change: $Author: mba $ $Date: 2000-10-16 14:08:34 $
*
* The Contents of this file are made available subject to the terms of
* either of the following licenses
@ -562,6 +562,10 @@ BOOL SotStorage::IsStorageFile( const String & rFileName )
return Storage::IsStorageFile( rFileName );
}
BOOL SotStorage::IsStorageFile( SvStream* pStream )
{
return Storage::IsStorageFile( pStream );
}
/*************************************************************************
|* SotStorage::GetStorage()
|*