///<summary>
/// Called when an asynchronous operation finishes.
///</summary>
void BitwiseOperationAsyncCallback(IAsyncResult ar)
{
BitwiseOperation state = (BitwiseOperation)ar.AsyncState;
ThreadedAsyncOperation.OperationResult result = state.Result;
// allow changes to the buffer
state.Buffer.ModifyAllowed = true;
state.Buffer.FileOperationsAllowed = true;
switch (result)
{
case ThreadedAsyncOperation.OperationResult.Finished:
break;
case ThreadedAsyncOperation.OperationResult.Cancelled:
state.Buffer.Undo();
break;
case ThreadedAsyncOperation.OperationResult.CaughtException:
break;
default:
break;
}
}
///<summary>
/// Called when an asynchronous Find Next/Previous operation finishes.
///</summary>
void FindAsyncCallback(IAsyncResult ar)
{
GenericFindOperation state = (GenericFindOperation)ar.AsyncState;
ThreadedAsyncOperation.OperationResult result = state.Result;
Range match = state.Match;
DataView dv = null;
// find DataView that owns bb
foreach (DataViewDisplay dvtemp in dataBook.Children)
{
if (dvtemp.View.Buffer == strategy.Buffer)
{
dv = dvtemp.View;
break;
}
}
// decide what to do based on the result of the find operation
switch (result)
{
case ThreadedAsyncOperation.OperationResult.Finished:
if (match != null)
{
lastFound = match;
dv.SetSelection(match.Start, match.End); //System.Console.WriteLine("Found at {0}-{1}", r.Start, r.End);
dv.MoveCursor(match.End + 1, 0);
dv.Display.MakeOffsetVisible(match.Start, DataViewDisplay.ShowType.Closest);
}
else
{
lastFound.Clear();
}
break;
case ThreadedAsyncOperation.OperationResult.Cancelled:
dv.MoveCursor(strategy.Position, 0);
dv.Display.MakeOffsetVisible(strategy.Position, DataViewDisplay.ShowType.Closest);
break;
case ThreadedAsyncOperation.OperationResult.CaughtException:
break;
default:
break;
}
inUse = false;
// if user provided a callback, call it now
if (userFindAsyncCallback != null)
{
userFindAsyncCallback(ar);
}
// notify that the find operation has finished
findFinishedEvent.Set();
}
///<summary>
/// Called when an asynchronous Replace All operation finishes.
///</summary>
void ReplaceAllAsyncCallback(IAsyncResult ar)
{
ReplaceAllOperation state = (ReplaceAllOperation)ar.AsyncState;
ThreadedAsyncOperation.OperationResult result = state.Result;
Range firstMatch = state.FirstMatch;
DataView dv = null;
// find DataView that owns bb
foreach (DataViewDisplay dvtemp in dataBook.Children)
{
if (dvtemp.View.Buffer == strategy.Buffer)
{
dv = dvtemp.View;
break;
}
}
// decide what to do based on the result of the Replace All operation
if (result == ThreadedAsyncOperation.OperationResult.Cancelled)
{
dv.Buffer.Undo();
}
// if we have replaced at least one occurence,
else if (result == ThreadedAsyncOperation.OperationResult.Finished && firstMatch != null)
{
lastFound = state.Match;
// save the cursor state for undo/redo
dv.CursorUndoDeque.AddFront(new CursorState(firstMatch.Start, 0, lastFound.Start + state.ReplacePattern.Length, 0));
// move cursor after final replacement
dv.SetSelection(-1, -1);
dv.MoveCursor(lastFound.Start + state.ReplacePattern.Length, 0);
dv.Display.MakeOffsetVisible(lastFound.Start + state.ReplacePattern.Length, DataViewDisplay.ShowType.Closest);
}
inUse = false;
// if user provided a callback, call it now
if (userFindAsyncCallback != null)
{
userFindAsyncCallback(ar);
}
// notify that the replace all operation has finished
findFinishedEvent.Set();
}
