/// <summary>
/// Loads a visualization layout from the specified file.
/// </summary>
/// <param name="filename">File to load visualization layout.</param>
/// <returns>The new visualization container.</returns>
public static VisualizationContainer Load(string filename)
{
var serializer = JsonSerializer.Create(
new JsonSerializerSettings()
{
Formatting = Formatting.Indented,
NullValueHandling = NullValueHandling.Ignore,
ReferenceLoopHandling = ReferenceLoopHandling.Ignore,
TypeNameHandling = TypeNameHandling.Auto,
TypeNameAssemblyFormatHandling = TypeNameAssemblyFormatHandling.Simple,
});
StreamReader jsonFile = null;
try
{
jsonFile = File.OpenText(filename);
using (var jsonReader = new JsonTextReader(jsonFile))
{
jsonFile = null;
VisualizationContainer container = serializer.Deserialize <VisualizationContainer>(jsonReader);
return(container);
}
}
finally
{
jsonFile?.Dispose();
}
}
/// <summary>
/// Called internally by the VisualizationPanel to connect the parent chain.
/// </summary>
/// <param name="panel">Panel to connect this visualization object to.</param>
internal void SetParentPanel(VisualizationPanel panel)
{
if (this.panel != null)
{
this.OnDisconnect();
this.navigator.CursorChanged -= this.OnCursorChanged;
this.panel = null;
this.container = null;
this.navigator = null;
}
if (panel != null)
{
this.panel = panel;
this.container = this.panel.Container;
this.navigator = this.container.Navigator;
this.navigator.CursorChanged += this.OnCursorChanged;
this.OnConnect();
}
}