public override object EditValue(ITypeDescriptorContext context, IServiceProvider provider, object value)
{
if (context != null && context.Instance != null && provider != null)
{
IWindowsFormsEditorService edSvc = (IWindowsFormsEditorService)provider.GetService(typeof(IWindowsFormsEditorService));
if (edSvc != null)
{
PropertiesWrapper pw = context.Instance as PropertiesWrapper;
AB_SingleAction sa = null;
if (pw != null)
{
sa = pw.Owner as AB_SingleAction;
}
ActionClass a = context.Instance as ActionClass;
if (a == null)
{
if (sa != null)
{
a = sa.ActionData as ActionClass;
}
}
ExpressionValue ev = (ExpressionValue)value;
if (ev == null)
{
ev = new ExpressionValue();
}
MathNodeRoot root = ev.GetExpression();
if (root == null)
{
root = new MathNodeRoot();
ev.SetExpression(root);
}
if (root.ScopeMethod == null)
{
if (a != null)
{
if (a.ScopeMethod == null && sa != null)
{
a.ScopeMethod = sa.Method;
}
root.ScopeMethod = a.ScopeMethod;
}
else if (sa != null)
{
if (sa.ActionData != null && sa.ActionData.ScopeMethod != null)
{
root.ScopeMethod = sa.ActionData.ScopeMethod;
}
}
}
if (root.ActionContext == null)
{
if (a != null)
{
root.ActionContext = a;
}
else if (sa != null)
{
root.ActionContext = sa;
}
}
System.Drawing.Point curPoint = System.Windows.Forms.Cursor.Position;
rc.X = curPoint.X;
rc.Y = curPoint.Y;
IMathEditor dlg = root.CreateEditor(rc);
if (a != null)
{
dlg.ActionContext = a;
}
dlg.SetScopeMethod(root.ScopeMethod);
dlg.VariableMapTargetType = typeof(ParameterValue);
dlg.MathExpression = (IMathExpression)root.Clone();
dlg.MathExpression.ScopeMethod = root.ScopeMethod;
dlg.MathExpression.EnableUndo = true;
if (edSvc.ShowDialog((Form)dlg) == DialogResult.OK)
{
root = (MathNodeRoot)dlg.MathExpression;
ev = new ExpressionValue();
ev.SetExpression(root);
value = ev;
}
}
}
return(value);
}
