goldendict-ng/wstring_qt.cc
Timon Wong 07113d0bf6 Fix unexpected result using QString::toStdWString() (fix #107 again, QTBUG-25536)
* QString::toStdWString() and QString::toUCS4() will have wrong size when
  QString instances contain non-BMP characters.

Close #320
2013-05-27 14:56:16 +08:00

37 lines
773 B
C++

#include "wstring_qt.hh"
#include <QVector>
namespace gd
{
#ifdef __WIN32
QString toQString( wstring const & in )
{
return QString::fromUcs4( in.c_str() );
}
#else
QString toQString( wstring const & in )
{
return QString::fromStdWString( in );
}
#endif
wstring toWString( QString const & in )
{
QVector< unsigned int > v = in.toUcs4();
// Fix for QString instance which contains non-BMP characters
// Qt will created unexpected null characters may confuse btree indexer.
// Related: https://bugreports.qt-project.org/browse/QTBUG-25536
int n = v.size();
while ( n > 0 && v[ n - 1 ] == 0 ) n--;
if ( n != v.size() )
v.resize( n );
return wstring( ( const wchar * ) v.constData(), v.size() );
}
}