X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/43b2d5e7c3b3e3d6b245e279dde73d96e0075911..9572bf1d442006beba3528dc00c3fc05eb523c24:/src/common/config.cpp

diff --git a/src/common/config.cpp b/src/common/config.cpp
index 8b1fdf83f0..81ff589b68 100644
--- a/src/common/config.cpp
+++ b/src/common/config.cpp
@@ -43,6 +43,7 @@
 #include <stdlib.h>
 #include <ctype.h>
 #include <limits.h>     // for INT_MAX
+#include <float.h>      // for FLT_MAX
 
 // ----------------------------------------------------------------------------
 // global and class static variables
@@ -105,7 +106,7 @@ wxConfigBase *wxConfigBase::Create()
 {
   if ( ms_bAutoCreate && ms_pConfig == NULL ) {
     wxAppTraits * const traits = wxTheApp ? wxTheApp->GetTraits() : NULL;
-    wxCHECK_MSG( traits, NULL, _T("create wxApp before calling this") );
+    wxCHECK_MSG( traits, NULL, wxT("create wxApp before calling this") );
 
     ms_pConfig = traits->CreateConfig();
   }
@@ -121,7 +122,7 @@ 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;                                                   \
@@ -135,7 +136,7 @@ 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 )                                                        \
@@ -166,7 +167,7 @@ bool wxConfigBase::Read(const wxString& key, int *pi) const
 {
     long l = *pi;
     bool r = Read(key, &l);
-    wxASSERT_MSG( l < INT_MAX, _T("int overflow in wxConfig::Read") );
+    wxASSERT_MSG( l < INT_MAX, wxT("int overflow in wxConfig::Read") );
     *pi = (int)l;
     return r;
 }
@@ -175,22 +176,52 @@ 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, _T("int overflow in wxConfig::Read") );
+    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;
+
+    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") );
+
+    *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") );
+    wxASSERT_MSG( l == 0 || l == 1, wxT("bad bool value in wxConfig::DoReadInt") );
 
     *val = l != 0;
 
@@ -202,7 +233,14 @@ 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;
@@ -225,7 +263,10 @@ wxString wxConfigBase::ExpandEnvVars(const wxString& str) const
 
 bool wxConfigBase::DoWriteDouble(const wxString& key, double val)
 {
-    return DoWriteString(key, wxString::Format(_T("%g"), val));
+    // 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)
@@ -269,7 +310,7 @@ wxConfigPathChanger::wxConfigPathChanger(const wxConfigBase *pContainer,
            pConfig->SetPath(wxT("MySettings"));
            pConfig->SetPath(wxT(".."));
            int value;
-           pConfig->Read(_T("MainWindowX"), & value);
+           pConfig->Read(wxT("MainWindowX"), & value);
         */
         m_strOldPath = m_pContainer->GetPath().wc_str();
         if ( *m_strOldPath.c_str() != wxCONFIG_PATH_SEPARATOR )
@@ -393,7 +434,7 @@ wxString wxExpandEnvVars(const wxString& str)
 
           while ( m < str.length() && (wxIsalnum(str[m]) || str[m] == wxT('_')) )
             m++;
- 
+
           wxString strVarName(str.c_str() + n + 1, m - n - 1);
 
 #ifdef __WXWINCE__