public static FlowMap Open(Form mdiparent)
{
OpenFileDialog dlg = new OpenFileDialog();
if (dlg.ShowDialog() == DialogResult.OK)
{
String loc = dlg.FileName;
FlowDocument olddoc = FlowDocument.FindDocument(loc);
if (olddoc != null)
{
IList windows = FlowMap.FindWindows(mdiparent, olddoc);
if (windows.Count > 0)
{
FlowMap w = windows[0] as FlowMap;
if (w.Reload())
{
w.Show();
w.Activate();
}
return(w);
}
}
else
{
Stream file = dlg.OpenFile();
if (file != null)
{
FlowDocument doc = null;
try
{
doc = FlowDocument.Load(file, loc);
}
catch (Exception ex)
{
MessageBox.Show(mdiparent, ex.Message, "Error reading design from a file");
}
finally
{
file.Close();
}
if (doc != null)
{
FlowMap w = new FlowMap();
w.View.Document = doc;
w.MdiParent = mdiparent;
w.Show();
w.Activate();
return(w);
}
}
}
}
return(null);
}
public virtual bool Reload()
{
String loc = this.Doc.Location;
if (loc != "")
{
FileStream file = File.Open(loc, FileMode.Open);
FlowDocument olddoc = this.View.Doc;
FlowDocument newdoc = null;
try
{
newdoc = FlowDocument.Load(file, loc);
}
catch (Exception ex)
{
MessageBox.Show(this, ex.Message, "Error reading design from a file");
return(false);
}
finally
{
file.Close();
}
if (newdoc != null)
{
IList windows = FlowMap.FindWindows(this.MdiParent, olddoc);
foreach (Object obj in windows)
{
FlowMap w = obj as FlowMap;
if (w != null)
{
w.View.Document = newdoc;
}
}
}
}
return(true);
}
