wxFSFile* wxFileSystem::OpenFile(const wxString& location)
{
wxString loc = MakeCorrectPath(location);
unsigned i, ln;
wxChar meta;
wxFSFile *s = NULL;
wxList::compatibility_iterator node;
ln = loc.Length();
meta = 0;
for (i = 0; i < ln; i++)
{
switch (loc[i])
{
case wxT('/') : case wxT(':') : case wxT('#') :
meta = loc[i];
break;
}
if (meta != 0) break;
}
m_LastName = wxEmptyString;
// try relative paths first :
if (meta != wxT(':'))
{
node = m_Handlers.GetFirst();
while (node)
{
wxFileSystemHandler *h = (wxFileSystemHandler*) node -> GetData();
if (h->CanOpen(m_Path + loc))
{
s = h->OpenFile(*this, m_Path + loc);
if (s) { m_LastName = m_Path + loc; break; }
}
node = node->GetNext();
}
}
// if failed, try absolute paths :
if (s == NULL)
{
node = m_Handlers.GetFirst();
while (node)
{
wxFileSystemHandler *h = (wxFileSystemHandler*) node->GetData();
if (h->CanOpen(loc))
{
s = h->OpenFile(*this, loc);
if (s) { m_LastName = loc; break; }
}
node = node->GetNext();
}
}
return (s);
}
void wxFileSystem::ChangePathTo(const wxString& location, bool is_dir)
{
int i, pathpos = -1;
m_Path = MakeCorrectPath(location);
if (is_dir)
{
if (!m_Path.empty() && m_Path.Last() != wxT('/') && m_Path.Last() != wxT(':'))
m_Path << wxT('/');
}
else
{
for (i = m_Path.length()-1; i >= 0; i--)
{
if (m_Path[(unsigned int) i] == wxT('/'))
{
if ((i > 1) && (m_Path[(unsigned int) (i-1)] == wxT('/')) && (m_Path[(unsigned int) (i-2)] == wxT(':')))
{
i -= 2;
continue;
}
else
{
pathpos = i;
break;
}
}
else if (m_Path[(unsigned int) i] == wxT(':')) {
pathpos = i;
break;
}
}
if (pathpos == -1)
{
for (i = 0; i < (int) m_Path.length(); i++)
{
if (m_Path[(unsigned int) i] == wxT(':'))
{
m_Path.Remove(i+1);
break;
}
}
if (i == (int) m_Path.length())
m_Path = wxEmptyString;
}
else
{
m_Path.Remove(pathpos+1);
}
}
}
wxFSFile* wxFileSystem::OpenFile(const wxString& location, int flags)
{
if ((flags & wxFS_READ) == 0)
return NULL;
wxString loc = MakeCorrectPath(location);
unsigned i, ln;
wxChar meta;
wxFSFile *s = NULL;
wxList::compatibility_iterator node;
ln = loc.length();
meta = 0;
for (i = 0; i < ln; i++)
{
switch ( loc[i].GetValue() )
{
case wxT('/') : case wxT(':') : case wxT('#') :
meta = loc[i];
break;
}
if (meta != 0) break;
}
m_LastName = wxEmptyString;
// try relative paths first :
if (meta != wxT(':'))
{
node = m_Handlers.GetFirst();
while (node)
{
wxFileSystemHandler *h = (wxFileSystemHandler*) node -> GetData();
if (h->CanOpen(m_Path + loc))
{
s = MakeLocal(h)->OpenFile(*this, m_Path + loc);
if (s) { m_LastName = m_Path + loc; break; }
}
node = node->GetNext();
}
}
// if failed, try absolute paths :
if (s == NULL)
{
node = m_Handlers.GetFirst();
while (node)
{
wxFileSystemHandler *h = (wxFileSystemHandler*) node->GetData();
if (h->CanOpen(loc))
{
s = MakeLocal(h)->OpenFile(*this, loc);
if (s) { m_LastName = loc; break; }
}
node = node->GetNext();
}
}
if (s && (flags & wxFS_SEEKABLE) != 0 && !s->GetStream()->IsSeekable())
{
wxBackedInputStream *stream;
stream = new wxBackedInputStream(s->DetachStream());
stream->FindLength();
s->SetStream(stream);
}
return (s);
}
