+// ----------------------------------------------------------------------------
+// absolute/relative paths
+// ----------------------------------------------------------------------------
+
+bool wxFileName::IsAbsolute(wxPathFormat format) const
+{
+ // if our path doesn't start with a path separator, it's not an absolute
+ // path
+ if ( m_relative )
+ return false;
+
+ if ( !GetVolumeSeparator(format).empty() )
+ {
+ // this format has volumes and an absolute path must have one, it's not
+ // enough to have the full path to bean absolute file under Windows
+ if ( GetVolume().empty() )
+ return false;
+ }
+
+ return true;
+}
+
+bool wxFileName::MakeRelativeTo(const wxString& pathBase, wxPathFormat format)
+{
+ wxFileName fnBase = wxFileName::DirName(pathBase, format);
+
+ // get cwd only once - small time saving
+ wxString cwd = wxGetCwd();
+ Normalize(wxPATH_NORM_ALL & ~wxPATH_NORM_CASE, cwd, format);
+ fnBase.Normalize(wxPATH_NORM_ALL & ~wxPATH_NORM_CASE, cwd, format);
+
+ bool withCase = IsCaseSensitive(format);
+
+ // we can't do anything if the files live on different volumes
+ if ( !GetVolume().IsSameAs(fnBase.GetVolume(), withCase) )
+ {
+ // nothing done
+ return false;
+ }
+
+ // same drive, so we don't need our volume
+ m_volume.clear();
+
+ // remove common directories starting at the top
+ while ( !m_dirs.IsEmpty() && !fnBase.m_dirs.IsEmpty() &&
+ m_dirs[0u].IsSameAs(fnBase.m_dirs[0u], withCase) )
+ {
+ m_dirs.RemoveAt(0);
+ fnBase.m_dirs.RemoveAt(0);
+ }
+
+ // add as many ".." as needed
+ size_t count = fnBase.m_dirs.GetCount();
+ for ( size_t i = 0; i < count; i++ )
+ {
+ m_dirs.Insert(wxT(".."), 0u);
+ }
+
+ if ( format == wxPATH_UNIX || format == wxPATH_DOS )
+ {
+ // a directory made relative with respect to itself is '.' under Unix
+ // and DOS, by definition (but we don't have to insert "./" for the
+ // files)
+ if ( m_dirs.IsEmpty() && IsDir() )
+ {
+ m_dirs.Add(_T('.'));
projects / wxWidgets.git / blobdiff