/////////////////////////////////////////////////////////////////////////////
-// Name: fs_mem.cpp
+// Name: src/common/fs_mem.cpp
// Purpose: in-memory file system
// Author: Vaclav Slavik
+// RCS-ID: $Id$
// Copyright: (c) 2000 Vaclav Slavik
-// Licence: wxWindows Licence
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-
-#ifdef __GNUG__
-#pragma implementation
-#endif
-
#include "wx/wxprec.h"
-#ifdef __BORDLANDC__
-#pragma hdrstop
+#ifdef __BORLANDC__
+ #pragma hdrstop
#endif
#if wxUSE_FILESYSTEM && wxUSE_STREAMS
-#ifndef WXPRECOMP
-#include "wx/wx.h"
+#include "wx/fs_mem.h"
+
+#ifndef WX_PRECOMP
+ #include "wx/intl.h"
+ #include "wx/log.h"
+ #include "wx/wxcrtvararg.h"
+ #if wxUSE_GUI
+ #include "wx/image.h"
+ #endif // wxUSE_GUI
#endif
-#include "wx/filesys.h"
-#include "wx/fs_mem.h"
#include "wx/mstream.h"
-
-class MemFSHashObj : public wxObject
+// represents a file entry in wxMemoryFS
+class wxMemoryFSFile
{
- public:
-
- MemFSHashObj(const void *data, size_t len)
- {
- m_Data = new char[len];
- memcpy(m_Data, data, len);
- m_Len = len;
- m_Time = wxDateTime::Now();
- }
-
- MemFSHashObj(wxMemoryOutputStream& stream)
- {
- m_Len = stream.GetSize();
- m_Data = new char[m_Len];
- stream.CopyTo(m_Data, m_Len);
- m_Time = wxDateTime::Now();
- }
-
- ~MemFSHashObj()
- {
- delete[] m_Data;
- }
-
- char *m_Data;
- size_t m_Len;
- wxDateTime m_Time;
+public:
+ wxMemoryFSFile(const void *data, size_t len, const wxString& mime)
+ {
+ m_Data = new char[len];
+ memcpy(m_Data, data, len);
+ m_Len = len;
+ m_MimeType = mime;
+ InitTime();
+ }
+
+ wxMemoryFSFile(const wxMemoryOutputStream& stream, const wxString& mime)
+ {
+ m_Len = stream.GetSize();
+ m_Data = new char[m_Len];
+ stream.CopyTo(m_Data, m_Len);
+ m_MimeType = mime;
+ InitTime();
+ }
+
+ virtual ~wxMemoryFSFile()
+ {
+ delete[] m_Data;
+ }
+
+ char *m_Data;
+ size_t m_Len;
+ wxString m_MimeType;
+#if wxUSE_DATETIME
+ wxDateTime m_Time;
+#endif // wxUSE_DATETIME
+
+private:
+ void InitTime()
+ {
+#if wxUSE_DATETIME
+ m_Time = wxDateTime::Now();
+#endif // wxUSE_DATETIME
+ }
+
+ wxDECLARE_NO_COPY_CLASS(wxMemoryFSFile);
};
+#if wxUSE_BASE
+
//--------------------------------------------------------------------------------
// wxMemoryFSHandler
//--------------------------------------------------------------------------------
-wxHashTable *wxMemoryFSHandler::m_Hash = NULL;
+wxMemoryFSHash wxMemoryFSHandlerBase::m_Hash;
-wxMemoryFSHandler::wxMemoryFSHandler() : wxFileSystemHandler()
+wxMemoryFSHandlerBase::wxMemoryFSHandlerBase() : wxFileSystemHandler()
{
- m_Hash = NULL;
}
-
-
-wxMemoryFSHandler::~wxMemoryFSHandler()
+wxMemoryFSHandlerBase::~wxMemoryFSHandlerBase()
{
// as only one copy of FS handler is supposed to exist, we may silently
// delete static data here. (There is no way how to remove FS handler from
// wxFileSystem other than releasing _all_ handlers.)
-
- if (m_Hash) delete m_Hash;
- m_Hash = NULL;
+ WX_CLEAR_HASH_MAP(wxMemoryFSHash, m_Hash);
}
-
-
-bool wxMemoryFSHandler::CanOpen(const wxString& location)
+bool wxMemoryFSHandlerBase::CanOpen(const wxString& location)
{
- wxString p = GetProtocol(location);
- return (p == wxT("memory"));
+ return GetProtocol(location) == "memory";
}
+wxFSFile * wxMemoryFSHandlerBase::OpenFile(wxFileSystem& WXUNUSED(fs),
+ const wxString& location)
+{
+ wxMemoryFSHash::const_iterator i = m_Hash.find(GetRightLocation(location));
+ if ( i == m_Hash.end() )
+ return NULL;
+
+ const wxMemoryFSFile * const obj = i->second;
+
+ return new wxFSFile
+ (
+ new wxMemoryInputStream(obj->m_Data, obj->m_Len),
+ location,
+ obj->m_MimeType,
+ GetAnchor(location)
+#if wxUSE_DATETIME
+ , obj->m_Time
+#endif // wxUSE_DATETIME
+ );
+}
-
-
-wxFSFile* wxMemoryFSHandler::OpenFile(wxFileSystem& WXUNUSED(fs), const wxString& location)
+wxString wxMemoryFSHandlerBase::FindFirst(const wxString& url, int flags)
{
- if (m_Hash)
+ if ( (flags & wxDIR) && !(flags & wxFILE) )
{
- MemFSHashObj *obj = (MemFSHashObj*) m_Hash -> Get(GetRightLocation(location));
- if (obj == NULL) return NULL;
- else return new wxFSFile(new wxMemoryInputStream(obj -> m_Data, obj -> m_Len),
- location,
- GetMimeTypeFromExt(location),
- GetAnchor(location),
- obj -> m_Time);
+ // we only store files, not directories, so we don't risk finding
+ // anything
+ return wxString();
}
- else return NULL;
-}
-
+ const wxString spec = GetRightLocation(url);
+ if ( spec.find_first_of("?*") == wxString::npos )
+ {
+ // simple case: there are no wildcard characters so we can return
+ // either 0 or 1 results and we can find the potential match quickly
+ return m_Hash.count(spec) ? url : wxString();
+ }
+ //else: deal with wildcards in FindNext()
-wxString wxMemoryFSHandler::FindFirst(const wxString& WXUNUSED(spec),
- int WXUNUSED(flags))
-{
- wxFAIL_MSG(wxT("wxMemoryFSHandler::FindFirst not implemented"));
+ m_findArgument = spec;
+ m_findIter = m_Hash.begin();
- return wxEmptyString;
+ return FindNext();
}
+wxString wxMemoryFSHandlerBase::FindNext()
+{
+ // m_findArgument is used to indicate that search is in progress, we reset
+ // it to empty string after iterating over all elements
+ while ( !m_findArgument.empty() )
+ {
+ // test for the match before (possibly) clearing m_findArgument below
+ const bool found = m_findIter->first.Matches(m_findArgument);
+
+ // advance m_findIter first as we need to do it anyhow, whether it
+ // matches or not
+ const wxMemoryFSHash::const_iterator current = m_findIter;
+ if ( ++m_findIter == m_Hash.end() )
+ m_findArgument.clear();
-wxString wxMemoryFSHandler::FindNext()
-{
- wxFAIL_MSG(wxT("wxMemoryFSHandler::FindNext not implemented"));
+ if ( found )
+ return "memory:" + current->first;
+ }
- return wxEmptyString;
+ return wxString();
}
-
-bool wxMemoryFSHandler::CheckHash(const wxString& filename)
+bool wxMemoryFSHandlerBase::CheckDoesntExist(const wxString& filename)
{
- if (m_Hash == NULL)
+ if ( m_Hash.count(filename) )
{
- m_Hash = new wxHashTable(wxKEY_STRING);
- m_Hash -> DeleteContents(TRUE);
+ wxLogError(_("Memory VFS already contains file '%s'!"), filename);
+ return false;
}
-
- if (m_Hash -> Get(filename) != NULL)
- {
- wxString s;
- s.Printf(_("Memory VFS already contains file '%s'!"), filename.c_str());
- wxLogError(s);
- return FALSE;
- }
- else
- return TRUE;
+
+ return true;
}
+/*static*/
+void wxMemoryFSHandlerBase::AddFileWithMimeType(const wxString& filename,
+ const wxString& textdata,
+ const wxString& mimetype)
+{
+ const wxCharBuffer buf(textdata.To8BitData());
-#if wxUSE_GUI
+ AddFileWithMimeType(filename, buf.data(), buf.length(), mimetype);
+}
-/*static*/ void wxMemoryFSHandler::AddFile(const wxString& filename, wxImage& image, long type)
+
+/*static*/
+void wxMemoryFSHandlerBase::AddFileWithMimeType(const wxString& filename,
+ const void *binarydata, size_t size,
+ const wxString& mimetype)
{
- if (!CheckHash(filename)) return;
+ if ( !CheckDoesntExist(filename) )
+ return;
-
- wxMemoryOutputStream mems;
- if (image.Ok() && image.SaveFile(mems, (int)type))
- m_Hash -> Put(filename, new MemFSHashObj(mems));
- else
- {
- wxString s;
- s.Printf(_("Failed to store image '%s' to memory VFS!"), filename.c_str());
- wxPrintf(wxT("'%s'\n"), s.c_str());
- wxLogError(s);
- }
+ m_Hash[filename] = new wxMemoryFSFile(binarydata, size, mimetype);
}
-
-/*static*/ void wxMemoryFSHandler::AddFile(const wxString& filename, const wxBitmap& bitmap, long type)
+/*static*/
+void wxMemoryFSHandlerBase::AddFile(const wxString& filename,
+ const wxString& textdata)
{
- wxImage img(bitmap);
- AddFile(filename, img, type);
+ AddFileWithMimeType(filename, textdata, wxEmptyString);
}
-#endif
-/*static*/ void wxMemoryFSHandler::AddFile(const wxString& filename, const wxString& textdata)
+/*static*/
+void wxMemoryFSHandlerBase::AddFile(const wxString& filename,
+ const void *binarydata, size_t size)
{
- AddFile(filename, (const void*) textdata.mb_str(), textdata.Length());
+ AddFileWithMimeType(filename, binarydata, size, wxEmptyString);
}
-/*static*/ void wxMemoryFSHandler::AddFile(const wxString& filename, const void *binarydata, size_t size)
+
+/*static*/ void wxMemoryFSHandlerBase::RemoveFile(const wxString& filename)
{
- if (!CheckHash(filename)) return;
- m_Hash -> Put(filename, new MemFSHashObj(binarydata, size));
+ wxMemoryFSHash::iterator i = m_Hash.find(filename);
+ if ( i == m_Hash.end() )
+ {
+ wxLogError(_("Trying to remove file '%s' from memory VFS, "
+ "but it is not loaded!"),
+ filename);
+ return;
+ }
+
+ delete i->second;
+ m_Hash.erase(i);
}
+#endif // wxUSE_BASE
+#if wxUSE_GUI
-/*static*/ void wxMemoryFSHandler::RemoveFile(const wxString& filename)
+#if wxUSE_IMAGE
+/*static*/ void
+wxMemoryFSHandler::AddFile(const wxString& filename,
+ const wxImage& image,
+ wxBitmapType type)
{
- if (m_Hash == NULL ||
- m_Hash -> Get(filename) == NULL)
+ if ( !CheckDoesntExist(filename) )
+ return;
+
+ wxMemoryOutputStream mems;
+ if ( image.IsOk() && image.SaveFile(mems, type) )
{
- wxString s;
- s.Printf(_("Trying to remove file '%s' from memory VFS, but it is not loaded!"), filename.c_str());
- wxLogError(s);
+ m_Hash[filename] = new wxMemoryFSFile
+ (
+ mems,
+ wxImage::FindHandler(type)->GetMimeType()
+ );
}
-
else
- delete m_Hash -> Delete(filename);
+ {
+ wxLogError(_("Failed to store image '%s' to memory VFS!"), filename);
+ }
+}
+
+/*static*/ void
+wxMemoryFSHandler::AddFile(const wxString& filename,
+ const wxBitmap& bitmap,
+ wxBitmapType type)
+{
+ wxImage img = bitmap.ConvertToImage();
+ AddFile(filename, img, type);
}
+#endif // wxUSE_IMAGE
+
+#endif // wxUSE_GUI
#endif // wxUSE_FILESYSTEM && wxUSE_FS_ZIP
projects / wxWidgets.git / blobdiff