X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/670f9935630beb2123a5ca62894ae92a3f0efa4f..396b37294a8c37739d71535783ae5c54d5f12f70:/src/common/config.cpp?ds=sidebyside diff --git a/src/common/config.cpp b/src/common/config.cpp index b5d811d836..1ca75fa2cf 100644 --- a/src/common/config.cpp +++ b/src/common/config.cpp @@ -5,7 +5,7 @@ // Modified by: // Created: 07.04.98 // RCS-ID: $Id$ -// Copyright: (c) 1997 Karsten Ballüder Ballueder@usa.net +// Copyright: (c) 1997 Karsten Ballueder Ballueder@usa.net // Vadim Zeitlin // Licence: wxWindows licence /////////////////////////////////////////////////////////////////////////////// @@ -30,19 +30,20 @@ #include "wx/intl.h" #include "wx/log.h" #include "wx/app.h" + #include "wx/utils.h" + #include "wx/arrstr.h" + #include "wx/math.h" #endif //WX_PRECOMP -#include "wx/arrstr.h" - #if wxUSE_CONFIG && ((wxUSE_FILE && wxUSE_TEXTFILE) || wxUSE_CONFIG_NATIVE) +#include "wx/apptrait.h" #include "wx/file.h" -#include "wx/utils.h" -#include "wx/math.h" #include #include #include // for INT_MAX +#include // for FLT_MAX // ---------------------------------------------------------------------------- // global and class static variables @@ -55,9 +56,24 @@ bool wxConfigBase::ms_bAutoCreate = true; // implementation // ============================================================================ +// ---------------------------------------------------------------------------- +// wxAppTraitsBase +// ---------------------------------------------------------------------------- + +wxConfigBase *wxAppTraitsBase::CreateConfig() +{ + return new + #if defined(__WINDOWS__) && wxUSE_CONFIG_NATIVE + wxRegConfig(wxTheApp->GetAppName(), wxTheApp->GetVendorName()); + #else // either we're under Unix or wish to use files even under Windows + wxFileConfig(wxTheApp->GetAppName()); + #endif +} + // ---------------------------------------------------------------------------- // wxConfigBase // ---------------------------------------------------------------------------- +IMPLEMENT_ABSTRACT_CLASS(wxConfigBase, wxObject) // Not all args will always be used by derived classes, but including them all // in each class ensures compatibility. @@ -87,14 +103,10 @@ wxConfigBase *wxConfigBase::Set(wxConfigBase *pConfig) wxConfigBase *wxConfigBase::Create() { if ( ms_bAutoCreate && ms_pConfig == NULL ) { - ms_pConfig = - #if defined(__WXMSW__) && wxUSE_CONFIG_NATIVE - new wxRegConfig(wxTheApp->GetAppName(), wxTheApp->GetVendorName()); - #elif defined(__WXPALMOS__) && wxUSE_CONFIG_NATIVE - new wxPrefConfig(wxTheApp->GetAppName()); - #else // either we're under Unix or wish to use files even under Windows - new wxFileConfig(wxTheApp->GetAppName()); - #endif + wxAppTraits * const traits = wxTheApp ? wxTheApp->GetTraits() : NULL; + wxCHECK_MSG( traits, NULL, wxT("create wxApp before calling this") ); + + ms_pConfig = traits->CreateConfig(); } return ms_pConfig; @@ -108,7 +120,7 @@ wxConfigBase *wxConfigBase::Create() #define IMPLEMENT_READ_FOR_TYPE(name, type, deftype, extra) \ bool wxConfigBase::Read(const wxString& key, type *val) const \ { \ - wxCHECK_MSG( val, false, _T("wxConfig::Read(): NULL parameter") ); \ + wxCHECK_MSG( val, false, wxT("wxConfig::Read(): NULL parameter") ); \ \ if ( !DoRead##name(key, val) ) \ return false; \ @@ -122,7 +134,7 @@ wxConfigBase *wxConfigBase::Create() type *val, \ deftype defVal) const \ { \ - wxCHECK_MSG( val, false, _T("wxConfig::Read(): NULL parameter") ); \ + wxCHECK_MSG( val, false, wxT("wxConfig::Read(): NULL parameter") ); \ \ bool read = DoRead##name(key, val); \ if ( !read ) \ @@ -143,38 +155,79 @@ wxConfigBase *wxConfigBase::Create() IMPLEMENT_READ_FOR_TYPE(String, wxString, const wxString&, ExpandEnvVars) IMPLEMENT_READ_FOR_TYPE(Long, long, long, long) -IMPLEMENT_READ_FOR_TYPE(Int, int, int, int) IMPLEMENT_READ_FOR_TYPE(Double, double, double, double) IMPLEMENT_READ_FOR_TYPE(Bool, bool, bool, bool) #undef IMPLEMENT_READ_FOR_TYPE -// the DoReadXXX() for the other types have implementation in the base class -// but can be overridden in the derived ones -bool wxConfigBase::DoReadInt(const wxString& key, int *pi) const +// int is stored as long +bool wxConfigBase::Read(const wxString& key, int *pi) const { - wxCHECK_MSG( pi, false, _T("wxConfig::Read(): NULL parameter") ); + long l = *pi; + bool r = Read(key, &l); + wxASSERT_MSG( l < INT_MAX, wxT("int overflow in wxConfig::Read") ); + *pi = (int)l; + return r; +} - long l; - if ( !DoReadLong(key, &l) ) +bool wxConfigBase::Read(const wxString& key, int *pi, int defVal) const +{ + long l = *pi; + bool r = Read(key, &l, defVal); + wxASSERT_MSG( l < INT_MAX, wxT("int overflow in wxConfig::Read") ); + *pi = (int)l; + return r; +} + +// Read floats as doubles then just type cast it down. +bool wxConfigBase::Read(const wxString& key, float* val) const +{ + wxCHECK_MSG( val, false, wxT("wxConfig::Read(): NULL parameter") ); + + double temp; + if ( !Read(key, &temp) ) return false; - wxASSERT_MSG( l < INT_MAX, _T("overflow in wxConfig::DoReadInt") ); + wxCHECK_MSG( fabs(temp) <= FLT_MAX, false, + wxT("float overflow in wxConfig::Read") ); + wxCHECK_MSG( (temp == 0.0) || (fabs(temp) >= FLT_MIN), false, + wxT("float underflow in wxConfig::Read") ); - *pi = (int)l; + *val = static_cast(temp); return true; } +bool wxConfigBase::Read(const wxString& key, float* val, float defVal) const +{ + wxCHECK_MSG( val, false, wxT("wxConfig::Read(): NULL parameter") ); + + if ( Read(key, val) ) + return true; + + *val = defVal; + return false; +} + +// the DoReadXXX() for the other types have implementation in the base class +// but can be overridden in the derived ones bool wxConfigBase::DoReadBool(const wxString& key, bool* val) const { - wxCHECK_MSG( val, false, _T("wxConfig::Read(): NULL parameter") ); + wxCHECK_MSG( val, false, wxT("wxConfig::Read(): NULL parameter") ); long l; if ( !DoReadLong(key, &l) ) return false; - wxASSERT_MSG( l == 0 || l == 1, _T("bad bool value in wxConfig::DoReadInt") ); + if ( l != 0 && l != 1 ) + { + // Don't assert here as this could happen in the result of user editing + // the file directly and this not indicate a bug in the program but + // still complain that something is wrong. + wxLogWarning(_("Invalid value %ld for a boolean key \"%s\" in " + "config file."), + l, key); + } *val = l != 0; @@ -186,7 +239,14 @@ bool wxConfigBase::DoReadDouble(const wxString& key, double* val) const wxString str; if ( Read(key, &str) ) { - return str.ToDouble(val); + if ( str.ToCDouble(val) ) + return true; + + // Previous versions of wxFileConfig wrote the numbers out using the + // current locale and not the C one as now, so attempt to parse the + // string as a number in the current locale too, for compatibility. + if ( str.ToDouble(val) ) + return true; } return false; @@ -209,12 +269,10 @@ wxString wxConfigBase::ExpandEnvVars(const wxString& str) const bool wxConfigBase::DoWriteDouble(const wxString& key, double val) { - return DoWriteString(key, wxString::Format(_T("%g"), val)); -} - -bool wxConfigBase::DoWriteInt(const wxString& key, int value) -{ - return DoWriteLong(key, (long)value); + // Notice that we always write out the numbers in C locale and not the + // current one. This makes the config files portable between machines using + // different locales. + return DoWriteString(key, wxString::FromCDouble(val)); } bool wxConfigBase::DoWriteBool(const wxString& key, bool value) @@ -230,10 +288,11 @@ wxConfigPathChanger::wxConfigPathChanger(const wxConfigBase *pContainer, const wxString& strEntry) { m_bChanged = false; - m_pContainer = (wxConfigBase *)pContainer; + m_pContainer = const_cast(pContainer); - // the path is everything which precedes the last slash - wxString strPath = strEntry.BeforeLast(wxCONFIG_PATH_SEPARATOR); + // the path is everything which precedes the last slash and the name is + // everything after it -- and this works correctly if there is no slash too + wxString strPath = strEntry.BeforeLast(wxCONFIG_PATH_SEPARATOR, &m_strName); // except in the special case of "/keyname" when there is nothing before "/" if ( strPath.empty() && @@ -251,30 +310,38 @@ wxConfigPathChanger::wxConfigPathChanger(const wxConfigBase *pContainer, /* JACS: work around a memory bug that causes an assert when using wxRegConfig, related to reference-counting. - Can be reproduced by removing (const wxChar*) below and + Can be reproduced by removing .wc_str() below and adding the following code to the config sample OnInit under Windows: pConfig->SetPath(wxT("MySettings")); pConfig->SetPath(wxT("..")); int value; - pConfig->Read(_T("MainWindowX"), & value); + pConfig->Read(wxT("MainWindowX"), & value); */ - m_strOldPath = (const wxChar*) m_pContainer->GetPath(); + m_strOldPath = m_pContainer->GetPath().wc_str(); if ( *m_strOldPath.c_str() != wxCONFIG_PATH_SEPARATOR ) m_strOldPath += wxCONFIG_PATH_SEPARATOR; m_pContainer->SetPath(strPath); } - - // in any case, use the just the name, not full path - m_strName = strEntry.AfterLast(wxCONFIG_PATH_SEPARATOR); - } - else { - // it's a name only, without path - nothing to do - m_strName = strEntry; } } +void wxConfigPathChanger::UpdateIfDeleted() +{ + // we don't have to do anything at all if we didn't change the path + if ( !m_bChanged ) + return; + + // find the deepest still existing parent path of the original path + while ( !m_pContainer->HasGroup(m_strOldPath) ) + { + m_strOldPath = m_strOldPath.BeforeLast(wxCONFIG_PATH_SEPARATOR); + if ( m_strOldPath.empty() ) + m_strOldPath = wxCONFIG_PATH_SEPARATOR; + } +} + wxConfigPathChanger::~wxConfigPathChanger() { // only restore path if it was changed @@ -283,6 +350,24 @@ wxConfigPathChanger::~wxConfigPathChanger() } } +// this is a wxConfig method but it's mainly used with wxConfigPathChanger +/* static */ +wxString wxConfigBase::RemoveTrailingSeparator(const wxString& key) +{ + wxString path(key); + + // don't remove the only separator from a root group path! + while ( path.length() > 1 ) + { + if ( *path.rbegin() != wxCONFIG_PATH_SEPARATOR ) + break; + + path.erase(path.end() - 1); + } + + return path; +} + #endif // wxUSE_CONFIG // ---------------------------------------------------------------------------- @@ -300,7 +385,7 @@ enum Bracket Bracket_None, Bracket_Normal = ')', Bracket_Curly = '}', -#ifdef __WXMSW__ +#ifdef __WINDOWS__ Bracket_Windows = '%', // yeah, Windows people are a bit strange ;-) #endif Bracket_Max @@ -309,27 +394,27 @@ enum Bracket wxString wxExpandEnvVars(const wxString& str) { wxString strResult; - strResult.Alloc(str.Len()); + strResult.Alloc(str.length()); size_t m; - for ( size_t n = 0; n < str.Len(); n++ ) { - switch ( str[n] ) { -#ifdef __WXMSW__ + for ( size_t n = 0; n < str.length(); n++ ) { + switch ( str[n].GetValue() ) { +#ifdef __WINDOWS__ case wxT('%'): -#endif //WINDOWS +#endif // __WINDOWS__ case wxT('$'): { Bracket bracket; - #ifdef __WXMSW__ + #ifdef __WINDOWS__ if ( str[n] == wxT('%') ) bracket = Bracket_Windows; else - #endif //WINDOWS - if ( n == str.Len() - 1 ) { + #endif // __WINDOWS__ + if ( n == str.length() - 1 ) { bracket = Bracket_None; } else { - switch ( str[n + 1] ) { + switch ( str[n + 1].GetValue() ) { case wxT('('): bracket = Bracket_Normal; n++; // skip the bracket @@ -347,22 +432,28 @@ wxString wxExpandEnvVars(const wxString& str) m = n + 1; - while ( m < str.Len() && (wxIsalnum(str[m]) || str[m] == wxT('_')) ) + while ( m < str.length() && (wxIsalnum(str[m]) || str[m] == wxT('_')) ) m++; wxString strVarName(str.c_str() + n + 1, m - n - 1); #ifdef __WXWINCE__ - const wxChar *pszValue = NULL; + const bool expanded = false; #else - const wxChar *pszValue = wxGetenv(strVarName); -#endif - if ( pszValue != NULL ) { - strResult += pszValue; + // NB: use wxGetEnv instead of wxGetenv as otherwise variables + // set through wxSetEnv may not be read correctly! + bool expanded = false; + wxString tmp; + if (wxGetEnv(strVarName, &tmp)) + { + strResult += tmp; + expanded = true; } - else { + else +#endif + { // variable doesn't exist => don't change anything - #ifdef __WXMSW__ + #ifdef __WINDOWS__ if ( bracket != Bracket_Windows ) #endif if ( bracket != Bracket_None ) @@ -372,22 +463,22 @@ wxString wxExpandEnvVars(const wxString& str) // check the closing bracket if ( bracket != Bracket_None ) { - if ( m == str.Len() || str[m] != (wxChar)bracket ) { + if ( m == str.length() || str[m] != (wxChar)bracket ) { // under MSW it's common to have '%' characters in the registry // and it's annoying to have warnings about them each time, so // ignroe them silently if they are not used for env vars // // under Unix, OTOH, this warning could be useful for the user to // understand why isn't the variable expanded as intended - #ifndef __WXMSW__ + #ifndef __WINDOWS__ wxLogWarning(_("Environment variables expansion failed: missing '%c' at position %u in '%s'."), (char)bracket, (unsigned int) (m + 1), str.c_str()); - #endif // __WXMSW__ + #endif // __WINDOWS__ } else { // skip closing bracket unless the variables wasn't expanded - if ( pszValue == NULL ) - strResult << (char)bracket; + if ( !expanded ) + strResult << (wxChar)bracket; m++; } } @@ -396,9 +487,9 @@ wxString wxExpandEnvVars(const wxString& str) } break; - case '\\': + case wxT('\\'): // backslash can be used to suppress special meaning of % and $ - if ( n != str.Len() - 1 && + if ( n != str.length() - 1 && (str[n + 1] == wxT('%') || str[n + 1] == wxT('$')) ) { strResult += str[++n]; @@ -415,23 +506,27 @@ wxString wxExpandEnvVars(const wxString& str) } // this function is used to properly interpret '..' in path -void wxSplitPath(wxArrayString& aParts, const wxChar *sz) +void wxSplitPath(wxArrayString& aParts, const wxString& path) { aParts.clear(); wxString strCurrent; - const wxChar *pc = sz; + wxString::const_iterator pc = path.begin(); for ( ;; ) { - if ( *pc == wxT('\0') || *pc == wxCONFIG_PATH_SEPARATOR ) { + if ( pc == path.end() || *pc == wxCONFIG_PATH_SEPARATOR ) { if ( strCurrent == wxT(".") ) { // ignore } else if ( strCurrent == wxT("..") ) { // go up one level if ( aParts.size() == 0 ) - wxLogWarning(_("'%s' has extra '..', ignored."), sz); + { + wxLogWarning(_("'%s' has extra '..', ignored."), path); + } else + { aParts.erase(aParts.end() - 1); + } strCurrent.Empty(); } @@ -442,12 +537,12 @@ void wxSplitPath(wxArrayString& aParts, const wxChar *sz) //else: // could log an error here, but we prefer to ignore extra '/' - if ( *pc == wxT('\0') ) + if ( pc == path.end() ) break; } else strCurrent += *pc; - pc++; + ++pc; } }