/////////////////////////////////////////////////////////////////////////////
-// Name: filesys.cpp
+// Name: src/common/filesys.cpp
// Purpose: wxFileSystem class - interface for opening files
// Author: Vaclav Slavik
// Copyright: (c) 1999 Vaclav Slavik
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma implementation "filesys.h"
-#endif
-
#include "wx/wxprec.h"
#ifdef __BORLANDC__
-#pragma hdrstop
+ #pragma hdrstop
#endif
#if wxUSE_FILESYSTEM
-#include "wx/wfstream.h"
-#include "wx/module.h"
#include "wx/filesys.h"
+
+#ifndef WX_PRECOMP
+ #include "wx/log.h"
+ #include "wx/module.h"
+#endif
+
+#include "wx/wfstream.h"
#include "wx/mimetype.h"
#include "wx/filename.h"
-#include "wx/log.h"
+#include "wx/tokenzr.h"
+#include "wx/private/fileback.h"
//--------------------------------------------------------------------------------
wxString ext, mime;
wxString loc = GetRightLocation(location);
wxChar c;
- int l = loc.Length(), l2;
+ int l = loc.length(), l2;
l2 = l;
for (int i = l-1; i >= 0; i--)
wxString wxFileSystemHandler::GetProtocol(const wxString& location) const
{
wxString s = wxEmptyString;
- int i, l = location.Length();
+ int i, l = location.length();
bool fnd = false;
for (i = l-1; (i >= 0) && ((location[i] != wxT('#')) || (!fnd)); i--) {
int i;
bool fnd = false;
- for (i = location.Length()-1; i >= 0; i--) {
+ for (i = location.length()-1; i >= 0; i--) {
if ((location[i] == wxT(':')) && (i != 1 /*win: C:\path*/)) fnd = true;
else if (fnd && (location[i] == wxT('#'))) return location.Left(i);
}
wxString wxFileSystemHandler::GetRightLocation(const wxString& location) const
{
- int i, l = location.Length();
+ int i, l = location.length();
int l2 = l + 1;
for (i = l-1;
wxString wxFileSystemHandler::GetAnchor(const wxString& location) const
{
wxChar c;
- int l = location.Length();
+ int l = location.length();
for (int i = l-1; i >= 0; i--) {
c = location[i];
// we need to check whether we can really read from this file, otherwise
// wxFSFile is not going to work
+#if wxUSE_FILE
+ wxFileInputStream *is = new wxFileInputStream(fullpath);
+#elif wxUSE_FFILE
wxFFileInputStream *is = new wxFFileInputStream(fullpath);
+#else
+#error One of wxUSE_FILE or wxUSE_FFILE must be set to 1 for wxFSHandler to work
+#endif
if ( !is->Ok() )
{
delete is;
wxList wxFileSystem::m_Handlers;
+wxFileSystem::~wxFileSystem()
+{
+ WX_CLEAR_HASH_MAP(wxFSHandlerHash, m_LocalHandlers)
+}
+
+
static wxString MakeCorrectPath(const wxString& path)
{
wxString p(path);
wxString r;
int i, j, cnt;
- cnt = p.Length();
+ cnt = p.length();
for (i = 0; i < cnt; i++)
if (p.GetChar(i) == wxT('\\')) p.GetWritableChar(i) = wxT('/'); // Want to be windows-safe
r << p.GetChar(i);
if (p.GetChar(i) == wxT('/') && p.GetChar(i-1) == wxT('.') && p.GetChar(i-2) == wxT('.'))
{
- for (j = r.Length() - 2; j >= 0 && r.GetChar(j) != wxT('/') && r.GetChar(j) != wxT(':'); j--) {}
+ for (j = r.length() - 2; j >= 0 && r.GetChar(j) != wxT('/') && r.GetChar(j) != wxT(':'); j--) {}
if (j >= 0 && r.GetChar(j) != wxT(':'))
{
for (j = j - 1; j >= 0 && r.GetChar(j) != wxT('/') && r.GetChar(j) != wxT(':'); j--) {}
if (is_dir)
{
- if (m_Path.Length() > 0 && m_Path.Last() != wxT('/') && m_Path.Last() != wxT(':'))
+ if (m_Path.length() > 0 && m_Path.Last() != wxT('/') && m_Path.Last() != wxT(':'))
m_Path << wxT('/');
}
else
{
- for (i = m_Path.Length()-1; i >= 0; i--)
+ for (i = m_Path.length()-1; i >= 0; i--)
{
if (m_Path[(unsigned int) i] == wxT('/'))
{
}
if (pathpos == -1)
{
- for (i = 0; i < (int) m_Path.Length(); i++)
+ for (i = 0; i < (int) m_Path.length(); i++)
{
if (m_Path[(unsigned int) i] == wxT(':'))
{
break;
}
}
- if (i == (int) m_Path.Length())
+ if (i == (int) m_Path.length())
m_Path = wxEmptyString;
}
else
-wxFSFile* wxFileSystem::OpenFile(const wxString& location)
+wxFileSystemHandler *wxFileSystem::MakeLocal(wxFileSystemHandler *h)
{
+ wxClassInfo *classinfo = h->GetClassInfo();
+
+ if (classinfo->IsDynamic())
+ {
+ wxFileSystemHandler*& local = m_LocalHandlers[classinfo];
+ if (!local)
+ local = (wxFileSystemHandler*)classinfo->CreateObject();
+ return local;
+ }
+ else
+ {
+ return h;
+ }
+}
+
+
+
+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();
+ ln = loc.length();
meta = 0;
for (i = 0; i < ln; i++)
{
wxFileSystemHandler *h = (wxFileSystemHandler*) node -> GetData();
if (h->CanOpen(m_Path + loc))
{
- s = h->OpenFile(*this, m_Path + loc);
+ s = MakeLocal(h)->OpenFile(*this, m_Path + loc);
if (s) { m_LastName = m_Path + loc; break; }
}
node = node->GetNext();
wxFileSystemHandler *h = (wxFileSystemHandler*) node->GetData();
if (h->CanOpen(loc))
{
- s = h->OpenFile(*this, 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);
}
m_FindFileHandler = NULL;
- for (int i = spec2.Length()-1; i >= 0; i--)
+ for (int i = spec2.length()-1; i >= 0; i--)
if (spec2[(unsigned int) i] == wxT('\\')) spec2.GetWritableChar(i) = wxT('/'); // Want to be windows-safe
node = m_Handlers.GetFirst();
while (node)
{
- m_FindFileHandler = (wxFileSystemHandler*) node -> GetData();
- if (m_FindFileHandler -> CanOpen(m_Path + spec2))
+ wxFileSystemHandler *h = (wxFileSystemHandler*) node -> GetData();
+ if (h -> CanOpen(m_Path + spec2))
+ {
+ m_FindFileHandler = MakeLocal(h);
return m_FindFileHandler -> FindFirst(m_Path + spec2, flags);
+ }
node = node->GetNext();
}
node = m_Handlers.GetFirst();
while (node)
{
- m_FindFileHandler = (wxFileSystemHandler*) node -> GetData();
- if (m_FindFileHandler -> CanOpen(spec2))
+ wxFileSystemHandler *h = (wxFileSystemHandler*) node -> GetData();
+ if (h -> CanOpen(spec2))
+ {
+ m_FindFileHandler = MakeLocal(h);
return m_FindFileHandler -> FindFirst(spec2, flags);
+ }
node = node->GetNext();
}
else return m_FindFileHandler -> FindNext();
}
+bool wxFileSystem::FindFileInPath(wxString *pStr,
+ const wxChar *path,
+ const wxChar *basename)
+{
+ // we assume that it's not empty
+ wxCHECK_MSG( !wxIsEmpty(basename), false,
+ _T("empty file name in wxFileSystem::FindFileInPath"));
+
+ // skip path separator in the beginning of the file name if present
+ if ( wxIsPathSeparator(*basename) )
+ basename++;
+
+ wxStringTokenizer tokenizer(path, wxPATH_SEP);
+ while ( tokenizer.HasMoreTokens() )
+ {
+ wxString strFile = tokenizer.GetNextToken();
+ if ( !wxEndsWithPathSeparator(strFile) )
+ strFile += wxFILE_SEP_PATH;
+ strFile += basename;
+
+ wxFSFile *file = OpenFile(strFile);
+ if ( file )
+ {
+ delete file;
+ *pStr = strFile;
+ return true;
+ }
+ }
+ return false;
+}
void wxFileSystem::AddHandler(wxFileSystemHandler *handler)
{
- m_Handlers.Append(handler);
+ // prepend the handler to the beginning of the list because handlers added
+ // last should have the highest priority to allow overriding them
+ m_Handlers.Insert((size_t)0, handler);
}
+wxFileSystemHandler* wxFileSystem::RemoveHandler(wxFileSystemHandler *handler)
+{
+ // if handler has already been removed (or deleted)
+ // we return NULL. This is by design in case
+ // CleanUpHandlers() is called before RemoveHandler
+ // is called, as we cannot control the order
+ // which modules are unloaded
+ if (!m_Handlers.DeleteObject(handler))
+ return NULL;
+
+ return handler;
+}
+
+
+bool wxFileSystem::HasHandlerForPath(const wxString &location)
+{
+ for ( wxList::compatibility_iterator node = m_Handlers.GetFirst();
+ node; node = node->GetNext() )
+ {
+ wxFileSystemHandler *h = (wxFileSystemHandler*) node->GetData();
+ if (h->CanOpen(location))
+ return true;
+ }
+
+ return false;
+}
void wxFileSystem::CleanUpHandlers()
{
}
else if ( (url.Find(wxT("file://")) == 0) &&
(path.Find(wxT('/')) != wxNOT_FOUND) &&
- (path.Length() > 1) && (path[1u] != wxT(':')) )
+ (path.length() > 1) && (path[1u] != wxT(':')) )
{
path = wxT("//") + path;
}
DECLARE_DYNAMIC_CLASS(wxFileSystemModule)
public:
+ wxFileSystemModule() :
+ wxModule(),
+ m_handler(NULL)
+ {
+ }
+
virtual bool OnInit()
{
- wxFileSystem::AddHandler(new wxLocalFSHandler);
+ m_handler = new wxLocalFSHandler;
+ wxFileSystem::AddHandler(m_handler);
return true;
}
virtual void OnExit()
{
+ delete wxFileSystem::RemoveHandler(m_handler);
+
wxFileSystem::CleanUpHandlers();
}
+
+ private:
+ wxFileSystemHandler* m_handler;
+
};
IMPLEMENT_DYNAMIC_CLASS(wxFileSystemModule, wxModule)
#endif
// wxUSE_FILESYSTEM
-
-
-
projects / wxWidgets.git / blobdiff