public GraphForm(string fileName)
{
InitializeComponent();
_graph = new Graph(fileName);
/* whenever graph changes, rerender and display the graph */
_graph.Changed += delegate(object sender, EventArgs e)
{
using (Stream stream = _graph.Render("emfplus:gdiplus"))
graphControl.Image = new Metafile(stream);
};
_graph.Arguments["layout"] = "dot";
}
public GraphForm(string fileName)
{
InitializeComponent();
/* window title is the filename portion */
Text = Path.GetFileName(fileName);
/* associated icon is eventually sourced by the desktop from this executable's embedded Win32 resources */
Icon = Icon.ExtractAssociatedIcon(fileName);
_graph = new Graph(fileName);
/* whenever graph changes, rerender and display the graph */
_graph.Changed += delegate(object sender, EventArgs e)
{
RenderGraph();
};
_graph.Arguments["layout"] = "dot";
_watcher = new PathWatcher(fileName);
_watcher.SynchronizingObject = this;
_watcher.Changed += delegate(object sender, CancelEventArgs eventArgs)
{
try
{
/* replace old graph with new and rerender */
Graph newGraph = new Graph(((PathWatcher)sender).Watched);
((IDisposable)_graph).Dispose();
_graph = newGraph;
_graph.Arguments["layout"] = "dot";
RenderGraph();
if (Changed != null)
Changed(this, EventArgs.Empty);
}
catch (Win32Exception exception)
{
/* if another process is holding on to the graph, try opening again later */
if (exception.NativeErrorCode == 32)
eventArgs.Cancel = false;
}
};
_watcher.Start();
/* set up export dialog with initial file and filters from the graph devices */
StringBuilder exportFilter = new StringBuilder();
int filterIndex = 0;
for (int deviceIndex = 0; deviceIndex < _devices.Count; ++deviceIndex)
{
if (deviceIndex > 0)
exportFilter.Append("|");
string device = _devices[deviceIndex];
exportFilter.Append(String.Format("{0} (*.{1})|*.{1}", device.ToUpper(), device));
if (filterIndex == 0 && device == "emfplus")
filterIndex = deviceIndex;
}
exportFileDialog.FileName = Path.GetFileNameWithoutExtension(fileName);
exportFileDialog.Filter = exportFilter.ToString();
exportFileDialog.FilterIndex = filterIndex + 1;
printDocument.DocumentName = Path.GetFileName(fileName);
}
public GraphArguments(Graph graph)
{
_dictionary = new Dictionary <string, string>();
_graph = graph;
}
