X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/e2478fde622a16d25c66690af353dfdc37e7b582..87f0b1323b7ac77f02133b836c8dfee63b0fd387:/src/common/fs_mem.cpp diff --git a/src/common/fs_mem.cpp b/src/common/fs_mem.cpp index 30995f3d05..5f96257100 100644 --- a/src/common/fs_mem.cpp +++ b/src/common/fs_mem.cpp @@ -1,237 +1,280 @@ ///////////////////////////////////////////////////////////////////////////// -// 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 "fs_mem.h" -#endif - #include "wx/wxprec.h" #ifdef __BORLANDC__ -#pragma hdrstop + #pragma hdrstop #endif #if wxUSE_FILESYSTEM && wxUSE_STREAMS -#include "wx/image.h" -#include "wx/bitmap.h" #include "wx/fs_mem.h" -#ifdef __WXBASE__ - -#ifndef WXPRECOMP +#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" + #endif // wxUSE_GUI #endif #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; - InitTime(); - } - - MemFSHashObj(wxMemoryOutputStream& stream) - { - m_Len = stream.GetSize(); - m_Data = new char[m_Len]; - stream.CopyTo(m_Data, m_Len); - InitTime(); - } - - ~MemFSHashObj() - { - delete[] m_Data; - } - - char *m_Data; - size_t m_Len; +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(); -#endif // wxUSE_DATETIME - } + m_Time = wxDateTime::Now(); +#endif // wxUSE_DATETIME + } + + wxDECLARE_NO_COPY_CLASS(wxMemoryFSFile); }; +#if wxUSE_BASE + //-------------------------------------------------------------------------------- // wxMemoryFSHandler //-------------------------------------------------------------------------------- -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) - { - 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, - GetMimeTypeFromExt(location), - 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 -#endif // wxUSE_DATETIME - ); - } - else return NULL; + , obj->m_Time +#endif // wxUSE_DATETIME + ); } - - -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); - m_Hash -> DeleteContents(TRUE); + 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); - return FALSE; + wxLogError(_("Memory VFS already contains file '%s'!"), filename); + return false; } - else - return TRUE; -} + return true; +} -/*static*/ void -wxMemoryFSHandlerBase::AddFile(const wxString& filename, wxImage& image, long type) +/*static*/ +void wxMemoryFSHandlerBase::AddFileWithMimeType(const wxString& filename, + const wxString& textdata, + const wxString& mimetype) { - if (!CheckHash(filename)) return; + const wxCharBuffer buf(textdata.To8BitData()); - - 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); - } + AddFileWithMimeType(filename, buf.data(), buf.length(), mimetype); } -/*static*/ void wxMemoryFSHandlerBase::AddFile(const wxString& filename, const wxString& textdata) +/*static*/ +void wxMemoryFSHandlerBase::AddFileWithMimeType(const wxString& filename, + const void *binarydata, size_t size, + const wxString& mimetype) +{ + if ( !CheckDoesntExist(filename) ) + return; + + m_Hash[filename] = new wxMemoryFSFile(binarydata, size, mimetype); +} + +/*static*/ +void wxMemoryFSHandlerBase::AddFile(const wxString& filename, + const wxString& textdata) { - AddFile(filename, (const void*) textdata.mb_str(), textdata.Length()); + AddFileWithMimeType(filename, textdata, wxEmptyString); } -/*static*/ void wxMemoryFSHandlerBase::AddFile(const wxString& filename, const void *binarydata, size_t size) +/*static*/ +void wxMemoryFSHandlerBase::AddFile(const wxString& filename, + const void *binarydata, size_t size) { - if (!CheckHash(filename)) return; - m_Hash -> Put(filename, new MemFSHashObj(binarydata, size)); + AddFileWithMimeType(filename, binarydata, size, wxEmptyString); } /*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 // __WXBASE__ +#endif // wxUSE_BASE #if wxUSE_GUI -/*static*/ void wxMemoryFSHandler::AddFile(const wxString& filename, const wxBitmap& bitmap, long type) +#if wxUSE_IMAGE +/*static*/ void +wxMemoryFSHandler::AddFile(const wxString& filename, + const wxImage& image, + wxBitmapType type) +{ + if ( !CheckDoesntExist(filename) ) + return; + + wxMemoryOutputStream mems; + if ( image.IsOk() && image.SaveFile(mems, type) ) + { + m_Hash[filename] = new wxMemoryFSFile + ( + mems, + wxImage::FindHandler(type)->GetMimeType() + ); + } + else + { + 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 +#endif // wxUSE_IMAGE +#endif // wxUSE_GUI -#endif // wxUSE_FILESYSTEM && wxUSE_FS_ZIP +#endif // wxUSE_FILESYSTEM && wxUSE_FS_ZIP