public void ClearHistory()
{
HistoryNextLines.Clear();
HistoryPreviousLines.Clear();
OnHistoryChanged();
}
public void MoveHistoryPreviousLine()
{
if (CanMoveHistoryPreviousLine)
{
PoemLine curLine = this.CurrentLine;
PoemLine line = HistoryPreviousLines[0];
selectedLines.Clear();
selectedLines.Add(line);
HistoryPreviousLines.RemoveAt(0);
if (curLine != null)
{
HistoryNextLines.Insert(0, curLine);
}
OnHistoryChanged();
OnCurrentLineChanged();
}
}
public void MoveHistoryNextLineByIndex(int itemIndex)
{
if (CanMoveHistoryNextLine)
{
PoemLine curLine = this.CurrentLine;
if (curLine != null)
{
HistoryPreviousLines.Insert(0, curLine);
}
for (int index = 0; index < itemIndex; index++)
{
HistoryPreviousLines.Insert(0, HistoryNextLines[index]);
}
for (int i = 0; i < itemIndex; i++)
{
HistoryNextLines.RemoveAt(0);
}
while (HistoryPreviousLines.Count > maxHistoryElement)
{
HistoryPreviousLines.RemoveAt(HistoryPreviousLines.Count - 1);
}
PoemLine line = HistoryNextLines[0];
selectedLines.Clear();
selectedLines.Add(line);
HistoryNextLines.RemoveAt(0);
OnHistoryChanged();
OnCurrentLineChanged();
}
}
public void GoLinePrevious()
{
PoemLine curLine = null;
if (selectedLines.Count > 0)
{
curLine = selectedLines[0];
selectedLines.RemoveAt(selectedLines.Count - 1);
}
if (systemAccumulation != null)
{
if (curLine == null)
{
curLine = systemAccumulation.GetLastLine();
}
else
{
curLine = this.mySAIterator.GetNextLine(curLine, false);
}
}
if (curLine != null)
{
selectedLines.Insert(0, curLine);
}
HistoryNextLines.Clear();
while (selectedLines.Count > selectedLinesCount)
{
selectedLines.RemoveAt(selectedLines.Count - 1);
}
OnCurrentLineChanged();
}
