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MMP: detect compressed files rather than guessing by extension

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Detect whether a given file is compressed by first trying to parse
its content as XML data. If it failed, try to uncompress and
parse again. This is more flexible than just looking whether the
filename extension is "mmpz".

Signed-off-by: Tobias Doerffel <tobias.doerffel@gmail.com>
This commit is contained in:
Tobias Doerffel
2009-06-15 13:58:40 +02:00
parent 9804cb7db8
commit c0794d0c41
1 changed files with 21 additions and 14 deletions
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35
src/core/mmp.cpp
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@@ -103,14 +103,7 @@ multimediaProject::multimediaProject( const QString & _fileName ) :
return;
}
if( _fileName.section( '.', -1 ) == "mmpz" )
{
loadData( qUncompress( inFile.readAll() ), _fileName );
}
else
{
loadData( inFile.readAll(), _fileName );
}
loadData( inFile.readAll(), _fileName );
}
@@ -687,15 +680,29 @@ void multimediaProject::loadData( const QByteArray & _data,
const QString & _sourceFile )
{
QString errorMsg;
int line, col;
int line = -1, col = -1;
if( !setContent( _data, &errorMsg, &line, &col ) )
{
qWarning() << "at line" << line << "column" << errorMsg;
QMessageBox::critical( NULL, songEditor::tr( "Error in file" ),
songEditor::tr( "The file %1 seems to contain errors "
"and therefore can't be loaded." ).
// parsing failed? then try to uncompress data
QByteArray uncompressed = qUncompress( _data );
if( !uncompressed.isEmpty() )
{
if( setContent( uncompressed, &errorMsg, &line, &col ) )
{
line = col = -1;
}
}
if( line >= 0 && col >= 0 )
{
qWarning() << "at line" << line << "column" << errorMsg;
QMessageBox::critical( NULL,
songEditor::tr( "Error in file" ),
songEditor::tr( "The file %1 seems to contain "
"errors and therefore can't be "
"loaded." ).
arg( _sourceFile ) );
return;
return;
}
}
QDomElement root = documentElement();