public Graph_History(Schematix.FSM.Constructor_Core core)
{
this.core = core;
history = new List <HistoryElem>();
this.elem = new HistoryElem(core.Graph.Clone(), "Start value");
history.Add(elem);
}
public void add(HistoryElem item)
{
int index = history.IndexOf(elem);
if (index == history.Count - 1)
{
history.Add(item);
elem = item;
return;
}
history.RemoveRange(index + 1, (history.Count - index - 1));
history.Add(item);
elem = item;
}
public void SetPosition(string name)
{
foreach (Schematix.FSM.HistoryElem history_elem in history)
{
if (history_elem.Name == name)
{
int index = history.IndexOf(history_elem);
elem = history.ElementAt <HistoryElem>(index);
core.Graph = history_elem.Graph;
core.Bitmap.UpdateBitmap();
core.form.Invalidate();
return;
}
}
}
/// <summary>
/// Отменить действие
/// </summary>
/// <returns></returns>
public My_Graph UnDo()
{
Schematix.FSM.My_Graph graph = null;
int index = history.IndexOf(elem);
if (index <= 0)
{
graph = elem.Graph;
}
if (index > 0)
{
elem = history.ElementAt <HistoryElem>(index - 1);
graph = elem.Graph;
}
return(graph.Clone());
}
/// <summary>
/// Загрузить данные с потока
/// </summary>
/// <param name="stream"></param>
public void OpenFile(Stream stream)
{
My_Graph item = null;
item = My_Graph.OpenFile(stream);
item.Core = this;
Graph_History.History.Clear();
Graph = item;
Bitmap.UpdateBitmap();
form.Invalidate();
HistoryElem newElem = AddToHistory("File Opened");
graph_history.SetAsSaved();
}
/// <summary>
/// Повторить действие
/// </summary>
/// <returns></returns>
public My_Graph ReDo()
{
Schematix.FSM.My_Graph graph = null;
int index = history.IndexOf(elem);
if (index == history.Count - 1)
{
elem = history.Last <HistoryElem>();
}
else
{
if (index == -1)
{
elem = history.First <HistoryElem>();
}
else
{
elem = history.ElementAt <HistoryElem>(index + 1);
}
}
graph = elem.Graph;
return(graph.Clone());
}