public void Clear()
{
List <ManagedRange> rageList = new List <ManagedRange>();
foreach (SnippetLink sl in _snippetLinks)
{
foreach (Range r in sl.Ranges)
{
ManagedRange mr = r as ManagedRange;
rageList.Add(mr);
}
}
_snippetLinks.Clear();
foreach (ManagedRange mr in rageList)
{
mr.Dispose();
}
}
private void Scintilla_BeforeTextDelete(object sender, TextModifiedEventArgs e)
{
if (!_isEnabled)
{
return;
}
if (_snippetLinks.IsActive && !_pendingUndo && !(e.UndoRedoFlags.IsUndo || e.UndoRedoFlags.IsRedo))
{
_pendingUndo = true;
Scintilla.UndoRedo.BeginUndoAction();
_snippetLinkTimer.Enabled = true;
}
ManagedRange undoneSnippetLinkRange = null;
if (e.UndoRedoFlags.IsUndo && _snippetLinks.IsActive)
{
foreach (ManagedRange mr in Scintilla.ManagedRanges)
{
if (mr.Start == e.Position && mr.Length == e.Length && mr.Length > 1)
{
undoneSnippetLinkRange = mr;
// Expanding the range So that it won't get marked for deletion
mr.End++;
}
}
}
// It's possible that the _end point may have been deleted. The endpoint
// is an ultra persistent marker that cannot be deleted until the Snippet
// Link mode is deactivated. Place a new EndPoint at the begining of the
// deleted range.
if (_snippetLinks.IsActive && _snippetLinks.EndPoint != null && _snippetLinks.EndPoint.Scintilla == null)
{
SnippetLinkEnd eci = new SnippetLinkEnd(e.Position, Scintilla);
Scintilla.ManagedRanges.Add(eci);
_snippetLinks.EndPoint = eci;
}
// Now collapse the Undone range in preparation for the
// newly inserted text that will be put in here
if (undoneSnippetLinkRange != null)
{
undoneSnippetLinkRange.End = undoneSnippetLinkRange.Start;
}
// Check to see if all SnippetLink ranges have been deleted.
// If this is the case we need to turn Deactivate SnippetLink
// mode.
bool deactivate = true;
foreach (SnippetLink sl in _snippetLinks.Values)
{
if (sl.Ranges.Count > 0)
{
foreach (SnippetLinkRange slr in sl.Ranges)
{
if (slr.Scintilla != null)
{
deactivate = false;
break;
}
}
}
if (!deactivate)
{
break;
}
}
if (deactivate && IsActive)
{
IsActive = false;
}
}