public bool Delete(DynamicEquation o)
{
if (o == null)
{
return(false);
}
var old_value = values;
var new_value = new List <DynamicEquation>(values);
new_value.Remove(o);
var cmd = new Command.DelegateCommand(
() =>
{
values = new_value;
if (OnChanged != null)
{
OnChanged(this, null);
}
},
() =>
{
values = old_value;
if (OnChanged != null)
{
OnChanged(this, null);
}
});
Command.CommandManager.Execute(cmd);
return(true);
}
public int GetIndex(DynamicEquation vector)
{
if (vector == null)
{
return(-1);
}
return(Values.IndexOf(vector));
}
public static void LoadFromElement(XmlElement e, Data.DynamicEquationCollection collection, bool isClip)
{
collection.Values.Clear();
for (var i = 0; i < e.ChildNodes.Count; i++)
{
var e_child = e.ChildNodes[i] as XmlElement;
var element = new DynamicEquation(DynamicEquation.DefaultName, collection);
LoadFromElement(e_child, element, isClip);
collection.Values.Add(element);
}
}
public bool Delete(DynamicEquation o)
{
if (o == null)
{
return(false);
}
var old_index = values.IndexOf(o);
var old_value = values;
var new_value = new List <DynamicEquation>(values);
new_value.Remove(o);
var cmd = new Command.DelegateCommand(
() =>
{
values = new_value;
if (old_index < values.Count)
{
selected = new_value[old_index];
}
else if (old_index > 0 && values.Count > 0)
{
selected = new_value[old_index - 1];
}
else
{
selected = null;
}
if (OnChanged != null)
{
OnChanged(this, null);
}
},
() =>
{
values = old_value;
selected = o;
if (OnChanged != null)
{
OnChanged(this, null);
}
});
Command.CommandManager.Execute(cmd);
return(true);
}
public bool Add()
{
if (values.Count >= 16)
{
return(false);
}
var old_selected = selected;
var old_value = values;
var new_value = new List <DynamicEquation>(values);
var value = new DynamicEquation(this);
value.Name.SetValue("New Expression");
value.Code.SetValue("@O.x = @In0\[email protected] = @In1");
new_value.Add(value);
var cmd = new Command.DelegateCommand(
() =>
{
values = new_value;
selected = new_value[new_value.Count - 1];
if (OnChanged != null)
{
OnChanged(this, null);
}
},
() =>
{
values = old_value;
selected = old_selected;
if (OnChanged != null)
{
OnChanged(this, null);
}
});
Command.CommandManager.Execute(cmd);
return(true);
}