///////////////////////////////////////////////////////////////////////////////
-// Name: config.cpp
+// Name: src/common/config.cpp
// Purpose: implementation of wxConfigBase class
// Author: Vadim Zeitlin
// 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 <zeitlin@dptmaths.ens-cachan.fr>
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
- #pragma implementation "confbase.h"
-#endif
#include "wx/wxprec.h"
-#ifdef __BORLANDC__
- #pragma hdrstop
+#ifdef __BORLANDC__
+ #pragma hdrstop
#endif //__BORLANDC__
#ifndef wxUSE_CONFIG_NATIVE
#endif
#include "wx/config.h"
-#include "wx/intl.h"
-#include "wx/log.h"
-#include "wx/arrstr.h"
+
+#ifndef WX_PRECOMP
+ #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
#if wxUSE_CONFIG && ((wxUSE_FILE && wxUSE_TEXTFILE) || wxUSE_CONFIG_NATIVE)
-#include "wx/app.h"
+#include "wx/apptrait.h"
#include "wx/file.h"
-#include "wx/textfile.h"
-#include "wx/utils.h"
-#include "wx/utils.h"
#include <stdlib.h>
-#include <math.h>
#include <ctype.h>
#include <limits.h> // for INT_MAX
+#include <float.h> // for FLT_MAX
// ----------------------------------------------------------------------------
// global and class static variables
// 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.
wxConfigBase::~wxConfigBase()
{
+ // required here for Darwin
}
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());
- #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;
#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; \
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 ) \
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<float>(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;
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;
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)
// ----------------------------------------------------------------------------
wxConfigPathChanger::wxConfigPathChanger(const wxConfigBase *pContainer,
- const wxString& strEntry)
+ const wxString& strEntry)
{
- m_pContainer = (wxConfigBase *)pContainer;
+ m_bChanged = false;
+ m_pContainer = const_cast<wxConfigBase *>(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.IsEmpty() &&
- ((!strEntry.IsEmpty()) && strEntry[0] == wxCONFIG_PATH_SEPARATOR) )
+ if ( strPath.empty() &&
+ ((!strEntry.empty()) && strEntry[0] == wxCONFIG_PATH_SEPARATOR) )
{
strPath = wxCONFIG_PATH_SEPARATOR;
}
- if ( !strPath.IsEmpty() ) {
- // do change the path
- m_bChanged = true;
- m_strName = strEntry.AfterLast(wxCONFIG_PATH_SEPARATOR);
- m_strOldPath = m_pContainer->GetPath();
- if ( m_strOldPath.Len() == 0 ||
- m_strOldPath.Last() != wxCONFIG_PATH_SEPARATOR )
- m_strOldPath += wxCONFIG_PATH_SEPARATOR;
- m_pContainer->SetPath(strPath);
- }
- else {
- // it's a name only, without path - nothing to do
- m_bChanged = false;
- m_strName = strEntry;
+ if ( !strPath.empty() )
+ {
+ if ( m_pContainer->GetPath() != strPath )
+ {
+ // we do change the path so restore it later
+ m_bChanged = true;
+
+ /* JACS: work around a memory bug that causes an assert
+ when using wxRegConfig, related to reference-counting.
+ 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(wxT("MainWindowX"), & value);
+ */
+ m_strOldPath = m_pContainer->GetPath().wc_str();
+ if ( *m_strOldPath.c_str() != wxCONFIG_PATH_SEPARATOR )
+ m_strOldPath += wxCONFIG_PATH_SEPARATOR;
+ m_pContainer->SetPath(strPath);
+ }
}
}
+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
}
}
+// 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
// ----------------------------------------------------------------------------
// understands both Unix and Windows (but only under Windows) environment
// variables expansion: i.e. $var, $(var) and ${var} are always understood
// and in addition under Windows %var% is also.
+
+// don't change the values the enum elements: they must be equal
+// to the matching [closing] delimiter.
+enum Bracket
+{
+ Bracket_None,
+ Bracket_Normal = ')',
+ Bracket_Curly = '}',
+#ifdef __WINDOWS__
+ Bracket_Windows = '%', // yeah, Windows people are a bit strange ;-)
+#endif
+ Bracket_Max
+};
+
wxString wxExpandEnvVars(const wxString& str)
{
wxString strResult;
- strResult.Alloc(str.Len());
-
- // don't change the values the enum elements: they must be equal
- // to the matching [closing] delimiter.
- enum Bracket
- {
- Bracket_None,
- Bracket_Normal = ')',
- Bracket_Curly = '}',
-#ifdef __WXMSW__
- Bracket_Windows = '%', // yeah, Windows people are a bit strange ;-)
-#endif
- Bracket_Max
- };
+ strResult.Alloc(str.length());
size_t m;
- for ( size_t n = 0; n < str.Len(); n++ ) {
- switch ( str[n] ) {
-#ifdef __WXMSW__
+ for ( size_t n = 0; n < str.length(); n++ ) {
+ switch ( str[n].GetValue() ) {
+#ifdef __WINDOWS__
case wxT('%'):
-#endif //WINDOWS
+#endif // __WINDOWS__
case wxT('$'):
{
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
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 )
// check the closing bracket
if ( bracket != Bracket_None ) {
- if ( m == str.Len() || str[m] != (char)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__
- wxLogWarning(_("Environment variables expansion failed: missing '%c' at position %d in '%s'."),
- (char)bracket, m + 1, str.c_str());
- #endif // __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 // __WINDOWS__
}
else {
// skip closing bracket unless the variables wasn't expanded
- if ( pszValue == NULL )
- strResult << (char)bracket;
+ if ( !expanded )
+ strResult << (wxChar)bracket;
m++;
}
}
}
break;
- case '\\':
+ case wxT('\\'):
// backslash can be used to suppress special meaning of % and $
- if ( n != str.Len() && (str[n + 1] == wxT('%') || str[n + 1] == wxT('$')) ) {
+ if ( n != str.length() - 1 &&
+ (str[n + 1] == wxT('%') || str[n + 1] == wxT('$')) ) {
strResult += str[++n];
break;
}
// 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();
}
- else if ( !strCurrent.IsEmpty() ) {
+ else if ( !strCurrent.empty() ) {
aParts.push_back(strCurrent);
strCurrent.Empty();
}
//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;
}
}
-
-
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