+ if ( ms_bAutoCreate && ms_pConfig == NULL ) {
+ wxAppTraits * const traits = wxTheApp ? wxTheApp->GetTraits() : NULL;
+ wxCHECK_MSG( traits, NULL, wxT("create wxApp before calling this") );
+
+ ms_pConfig = traits->CreateConfig();
+ }
+
+ return ms_pConfig;
+}
+
+// ----------------------------------------------------------------------------
+// wxConfigBase reading entries
+// ----------------------------------------------------------------------------
+
+// implement both Read() overloads for the given type in terms of DoRead()
+#define IMPLEMENT_READ_FOR_TYPE(name, type, deftype, extra) \
+ bool wxConfigBase::Read(const wxString& key, type *val) const \
+ { \
+ wxCHECK_MSG( val, false, wxT("wxConfig::Read(): NULL parameter") ); \
+ \
+ if ( !DoRead##name(key, val) ) \
+ return false; \
+ \
+ *val = extra(*val); \
+ \
+ return true; \
+ } \
+ \
+ bool wxConfigBase::Read(const wxString& key, \
+ type *val, \
+ deftype defVal) const \
+ { \
+ wxCHECK_MSG( val, false, wxT("wxConfig::Read(): NULL parameter") ); \
+ \
+ bool read = DoRead##name(key, val); \
+ if ( !read ) \
+ { \
+ if ( IsRecordingDefaults() ) \
+ { \
+ ((wxConfigBase *)this)->DoWrite##name(key, defVal); \
+ } \
+ \
+ *val = defVal; \
+ } \
+ \
+ *val = extra(*val); \
+ \
+ return read; \
+ }
+
+
+IMPLEMENT_READ_FOR_TYPE(String, wxString, const wxString&, ExpandEnvVars)
+IMPLEMENT_READ_FOR_TYPE(Long, long, long, long)
+IMPLEMENT_READ_FOR_TYPE(Double, double, double, double)
+IMPLEMENT_READ_FOR_TYPE(Bool, bool, bool, bool)
+
+#undef IMPLEMENT_READ_FOR_TYPE
+
+// int is stored as long
+bool wxConfigBase::Read(const wxString& key, int *pi) const
+{
+ long l = *pi;
+ bool r = Read(key, &l);
+ wxASSERT_MSG( l < INT_MAX, wxT("int overflow in wxConfig::Read") );
+ *pi = (int)l;
+ return r;
+}
+
+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;
+
+ 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, wxT("wxConfig::Read(): NULL parameter") );
+
+ long l;
+ if ( !DoReadLong(key, &l) )
+ return false;
+
+ 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;
+
+ return true;
projects / wxWidgets.git / blobdiff