private void OnFileOpen(object sender, ExecutedRoutedEventArgs e)
{
Microsoft.Win32.OpenFileDialog ofd = new Microsoft.Win32.OpenFileDialog();
ofd.RestoreDirectory = true;
ofd.DefaultExt = ".sgx";
ofd.Filter = "GraphXML (.sgx)|*.sgx|All Files|*.*";
if (ofd.ShowDialog() == true)
{
graphCanvas.Children.Clear();
try
{
FileName = ofd.FileName;
Graph = WebGraph.Logic.GraphXmlSerializer.Deserialize(FileName);
Layouter = new WebGraph.Logic.GraphLayouter(Graph);
Brush nodeFg = new SolidColorBrush(Properties.Settings.Default.NodeForeground);
Brush nodeBg = new SolidColorBrush(Properties.Settings.Default.NodeBackground);
Graph.ForAllEdges(edge =>
{
Line line = new Line();
line.Stroke = nodeBg;
edge.Tag = line;
graphCanvas.Children.Add(line);
});
Graph.ForAllNodes(node =>
{
TextBlock text = new TextBlock();
text.Text = node.Label;
text.Foreground = nodeFg;
text.Background = nodeBg;
text.Padding = new Thickness(4, 0, 4, 0);
text.FontSize = 12;
text.MouseLeftButtonDown += new MouseButtonEventHandler(OnNodeMouseLeftButtonDown);
node.Tag = text;
graphCanvas.Children.Add(text);
});
}
catch (Exception exc)
{
OnFileNew(this, null); // force a complete reset
MessageBox.Show(exc.Message, exc.GetType().FullName);
}
graphCanvas.UpdateLayout();
Graph.ForAllNodes(new WebGraph.Logic.NodeCallback(CenterNodes));
Graph.ForAllNodes(new WebGraph.Logic.NodeCallback(UpdateNodeSize));
Layouter.ResetDamper();
}
}
