public void LoadFile(Stream stream)
{
UndoManager.ClearAll();
DeSelect();
XDocument xDoc = XDocument.Load(stream, LoadOptions.PreserveWhitespace);
XElement root = xDoc.Root;
XAttribute fileVersionAttribute;
XAttribute appVersionAttribute;
if (root.Name == GetType().Name)
{
XElement formattingElement = root.Element("TextManager");
textManager.DeSerialize(formattingElement);
fileVersionAttribute = root.Attributes("fileVersion").FirstOrDefault();
appVersionAttribute = root.Attributes("appVersion").FirstOrDefault();
root = root.Element("RowContainer");
}
else
{
fileVersionAttribute = root.Attributes("fileVersion").FirstOrDefault();
appVersionAttribute = root.Attributes("appVersion").FirstOrDefault();
}
string appVersion = appVersionAttribute != null ? appVersionAttribute.Value : "Unknown";
if (fileVersionAttribute == null || fileVersionAttribute.Value != fileVersion)
{
MessageBox.Show("The file was created by a different version (v." + appVersion + ") of Math Editor and uses a different format." + Environment.NewLine + Environment.NewLine +
"Math Editor will still try to open and convert the file to the current version. The operation may fail. " + Environment.NewLine + Environment.NewLine +
"Please create a backup if you want to keep the original file intact.", "Message");
}
ActiveChild.DeSerialize(root);
CalculateSize();
AdjustCarets();
}