public bool OpenFile(string fileName)
{
bool result = true;
// if fileName is null, then this is a reload
bool reload = false;
if (string.IsNullOrEmpty(fileName))
{
reload = true;
fileName = docPkg.FilePath;
}
// close current file if any
CloseFile();
// open the package
docPkg = new DocumentPackage();
if (!docPkg.Open(fileName))
{
result = false;
}
else
{
// update the tree
RefreshTree();
// reload any open view
if (reload)
{
ReloadAllViews();
IsModified = false;
}
}
return result;
}
public void CloseFile()
{
// clear the tree view
treeView.Nodes.Clear();
// clear history
history.Clear();
curHistory = null;
// update command state
this.buttonBack.Enabled = false;
this.buttonForward.Enabled = false;
this.buttonHistory.Enabled = true;
// close the document
if (docPkg == null)
return;
docPkg.Close();
docPkg = null;
}
