/**
* Finish the current PDF stream (writes the deferred length, too)
*/
void PDF_PLOTTER::closePdfStream()
{
wxASSERT( workFile );
long stream_len = ftell( workFile );
if( stream_len < 0 )
{
wxASSERT( false );
return;
}
// Rewind the file, read in the page stream and DEFLATE it
fseek( workFile, 0, SEEK_SET );
unsigned char *inbuf = new unsigned char[stream_len];
int rc = fread( inbuf, 1, stream_len, workFile );
wxASSERT( rc == stream_len );
(void) rc;
// We are done with the temporary file, junk it
fclose( workFile );
workFile = 0;
::wxRemoveFile( workFilename );
// NULL means memos owns the memory, but provide a hint on optimum size needed.
wxMemoryOutputStream memos( NULL, std::max( 2000l, stream_len ) ) ;
{
/* Somewhat standard parameters to compress in DEFLATE. The PDF spec is
* misleading, it says it wants a DEFLATE stream but it really want a ZLIB
* stream! (a DEFLATE stream would be generated with -15 instead of 15)
* rc = deflateInit2( &zstrm, Z_BEST_COMPRESSION, Z_DEFLATED, 15,
* 8, Z_DEFAULT_STRATEGY );
*/
wxZlibOutputStream zos( memos, wxZ_BEST_COMPRESSION, wxZLIB_ZLIB );
zos.Write( inbuf, stream_len );
delete[] inbuf;
} // flush the zip stream using zos destructor
wxStreamBuffer* sb = memos.GetOutputStreamBuffer();
unsigned out_count = sb->Tell();
fwrite( sb->GetBufferStart(), 1, out_count, outputFile );
fputs( "endstream\n", outputFile );
closePdfObject();
// Writing the deferred length as an indirect object
startPdfObject( streamLengthHandle );
fprintf( outputFile, "%u\n", out_count );
closePdfObject();
}
bool wxDebugReportCompress::DoProcess()
{
const size_t count = GetFilesCount();
if ( !count )
return false;
// create the compressed report file outside of the directory with the
// report files as it will be deleted by wxDebugReport dtor but we want to
// keep this one: for this we simply treat the directory name as the name
// of the file so that its last component becomes our base name
wxFileName fn(GetDirectory());
if ( !m_zipDir.empty() )
fn.SetPath(m_zipDir);
if ( !m_zipName.empty() )
fn.SetName(m_zipName);
fn.SetExt("zip");
// create the streams
wxFFileOutputStream os(fn.GetFullPath(), wxT("wb"));
wxZipOutputStream zos(os, 9);
// add all files to the ZIP one
wxString name, desc;
for ( size_t n = 0; n < count; n++ )
{
GetFile(n, &name, &desc);
wxZipEntry *ze = new wxZipEntry(name);
ze->SetComment(desc);
if ( !zos.PutNextEntry(ze) )
return false;
const wxFileName filename(GetDirectory(), name);
wxFFileInputStream is(filename.GetFullPath());
if ( !is.IsOk() || !zos.Write(is).IsOk() )
return false;
}
if ( !zos.Close() )
return false;
m_zipfile = fn.GetFullPath();
return true;
}
bool wxDebugReportCompress::DoProcess()
{
const size_t count = GetFilesCount();
if ( !count )
return false;
// create the streams
wxFileName fn(GetDirectory(), GetReportName(), _T("zip"));
wxFFileOutputStream os(fn.GetFullPath(), _T("wb"));
wxZipOutputStream zos(os, 9);
// add all files to the ZIP one
wxString name, desc;
for ( size_t n = 0; n < count; n++ )
{
GetFile(n, &name, &desc);
wxZipEntry *ze = new wxZipEntry(name);
ze->SetComment(desc);
if ( !zos.PutNextEntry(ze) )
return false;
wxFileName filename(fn.GetPath(), name);
wxFFileInputStream is(filename.GetFullPath());
if ( !is.IsOk() || !zos.Write(is).IsOk() )
return false;
}
if ( !zos.Close() )
return false;
m_zipfile = fn.GetFullPath();
return true;
}
