X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/f92ef8536af3c43374be8eb82a33d9d7d3d4e87d..8cbc59fe84f046685b873cf58f6c56debe59de1c:/src/common/fs_mem.cpp diff --git a/src/common/fs_mem.cpp b/src/common/fs_mem.cpp index 4d9ba72339..9cd5628f86 100644 --- a/src/common/fs_mem.cpp +++ b/src/common/fs_mem.cpp @@ -20,7 +20,6 @@ #ifndef WX_PRECOMP #include "wx/intl.h" #include "wx/log.h" - #include "wx/hash.h" #include "wx/wxcrtvararg.h" #if wxUSE_GUI #include "wx/image.h" @@ -29,49 +28,49 @@ #include "wx/mstream.h" -class MemFSHashObj : public wxObject +// represents a file entry in wxMemoryFS +class wxMemoryFSFile { - public: - - MemFSHashObj(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(); - } - - MemFSHashObj(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 ~MemFSHashObj() - { - delete[] m_Data; - } - - char *m_Data; - size_t m_Len; - wxString m_MimeType; +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; + wxDateTime m_Time; #endif // wxUSE_DATETIME - DECLARE_NO_COPY_CLASS(MemFSHashObj) - - private: - void InitTime() - { +private: + void InitTime() + { #if wxUSE_DATETIME - m_Time = wxDateTime::Now(); + m_Time = wxDateTime::Now(); #endif // wxUSE_DATETIME - } + } + + wxDECLARE_NO_COPY_CLASS(wxMemoryFSFile); }; #if wxUSE_BASE @@ -82,94 +81,103 @@ class MemFSHashObj : public wxObject //-------------------------------------------------------------------------------- -wxHashTable *wxMemoryFSHandlerBase::m_Hash = NULL; +wxMemoryFSHash wxMemoryFSHandlerBase::m_Hash; wxMemoryFSHandlerBase::wxMemoryFSHandlerBase() : wxFileSystemHandler() { } - - 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) - { - WX_CLEAR_HASH_TABLE(*m_Hash); - delete m_Hash; - m_Hash = NULL; - } + WX_CLEAR_HASH_MAP(wxMemoryFSHash, m_Hash); } - - 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) +wxFSFile * wxMemoryFSHandlerBase::OpenFile(wxFileSystem& WXUNUSED(fs), + const wxString& location) { - if (m_Hash) - { - 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, - obj->m_MimeType, - GetAnchor(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 + , obj->m_Time #endif // wxUSE_DATETIME - ); - } - else return NULL; + ); } - - -wxString wxMemoryFSHandlerBase::FindFirst(const wxString& WXUNUSED(spec), - int WXUNUSED(flags)) +wxString wxMemoryFSHandlerBase::FindFirst(const wxString& url, int flags) { - wxFAIL_MSG(wxT("wxMemoryFSHandlerBase::FindFirst not implemented")); + if ( (flags & wxDIR) && !(flags & wxFILE) ) + { + // we only store files, not directories, so we don't risk finding + // anything + return wxString(); + } - return wxEmptyString; -} + 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() + m_findArgument = spec; + m_findIter = m_Hash.begin(); + return FindNext(); +} wxString wxMemoryFSHandlerBase::FindNext() { - wxFAIL_MSG(wxT("wxMemoryFSHandlerBase::FindNext not implemented")); + // 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); - return wxEmptyString; -} + // 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(); -bool wxMemoryFSHandlerBase::CheckHash(const wxString& filename) -{ - if (m_Hash == NULL) - { - m_Hash = new wxHashTable(wxKEY_STRING); + if ( found ) + return "memory:" + current->first; } - if (m_Hash -> Get(filename) != NULL) + return wxString(); +} + +bool wxMemoryFSHandlerBase::CheckDoesntExist(const wxString& filename) +{ + if ( m_Hash.count(filename) ) { - wxString s; - s.Printf(_("Memory VFS already contains file '%s'!"), filename.c_str()); - wxLogError(s); + wxLogError(_("Memory VFS already contains file '%s'!"), filename); return false; } - else - return true; + + return true; } @@ -189,8 +197,10 @@ void wxMemoryFSHandlerBase::AddFileWithMimeType(const wxString& filename, const void *binarydata, size_t size, const wxString& mimetype) { - if (!CheckHash(filename)) return; - m_Hash -> Put(filename, new MemFSHashObj(binarydata, size, mimetype)); + if ( !CheckDoesntExist(filename) ) + return; + + m_Hash[filename] = new wxMemoryFSFile(binarydata, size, mimetype); } /*static*/ @@ -212,16 +222,17 @@ void wxMemoryFSHandlerBase::AddFile(const wxString& filename, /*static*/ void wxMemoryFSHandlerBase::RemoveFile(const wxString& filename) { - if (m_Hash == NULL || - m_Hash -> Get(filename) == NULL) + wxMemoryFSHash::iterator i = m_Hash.find(filename); + if ( i == m_Hash.end() ) { - wxString s; - s.Printf(_("Trying to remove file '%s' from memory VFS, but it is not loaded!"), filename.c_str()); - wxLogError(s); + wxLogError(_("Trying to remove file '%s' from memory VFS, " + "but it is not loaded!"), + filename); + return; } - else - delete m_Hash -> Delete(filename); + delete i->second; + m_Hash.erase(i); } #endif // wxUSE_BASE @@ -234,27 +245,21 @@ wxMemoryFSHandler::AddFile(const wxString& filename, const wxImage& image, wxBitmapType type) { - if (!CheckHash(filename)) return; + if ( !CheckDoesntExist(filename) ) + return; wxMemoryOutputStream mems; - if (image.Ok() && image.SaveFile(mems, type)) + if ( image.Ok() && image.SaveFile(mems, type) ) { - m_Hash->Put - ( - filename, - new MemFSHashObj - ( - mems, - wxImage::FindHandler(type)->GetMimeType() - ) - ); + m_Hash[filename] = new wxMemoryFSFile + ( + mems, + wxImage::FindHandler(type)->GetMimeType() + ); } 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); + wxLogError(_("Failed to store image '%s' to memory VFS!"), filename); } } @@ -263,10 +268,8 @@ wxMemoryFSHandler::AddFile(const wxString& filename, const wxBitmap& bitmap, wxBitmapType type) { -#if !defined(__WXMSW__) || wxUSE_WXDIB wxImage img = bitmap.ConvertToImage(); AddFile(filename, img, type); -#endif } #endif // wxUSE_IMAGE