/// <summary>
/// Call this when the user hits CTRL + Z
/// </summary>
public void Undo()
{
Functions.PrintDebug("Undo() called", typeof(UndoBuffer));
if (mi_Undo.Count == 0)
{
mi_Box.WriteStatus("Undo not available!");
return;
}
RtfData i_Old = (RtfData) mi_Undo.Pop();
RtfData i_New = new RtfData(mi_Box);
// The new text has just been pushed and nothing changed afterwards
if (i_Old.Equals(i_New) && mi_Undo.Count > 0)
i_Old = (RtfData) mi_Undo.Pop();
i_Old.SetRtf(mi_Box);
mi_Redo.Push (i_New);
DebugOut();
}
public bool Equals(RtfData i_Data)
{
return (s_Rtf == i_Data.s_Rtf && s32_SelStart == i_Data.s32_SelStart && s32_SelLen == i_Data.s32_SelLen);
}
/// <summary>
/// Call this when the user hits CTRL + Y
/// </summary>
public void Redo()
{
Functions.PrintDebug("Redo() called", typeof(UndoBuffer));
if (mi_Redo.Count == 0)
{
mi_Box.WriteStatus("Redo not available!");
return;
}
RtfData i_Old = (RtfData) mi_Redo.Pop();
RtfData i_New = new RtfData(mi_Box);
i_Old.SetRtf(mi_Box);
mi_Undo.Push (i_New);
DebugOut();
}
