RaiseEvents() public méthode

public RaiseEvents ( ) : void
Résultat void
DelayedEvents Class Documentation
Exemple #1
0
		private void DoReplace(int offset, int length, ITextSource newText, OffsetChangeMap offsetChangeMap)
		{
			if (length == 0 && newText.TextLength == 0)
				return;

			// trying to replace a single character in 'Normal' mode?
			// for single characters, 'CharacterReplace' mode is equivalent, but more performant
			// (we don't have to touch the anchorTree at all in 'CharacterReplace' mode)
			if (length == 1 && newText.TextLength == 1 && offsetChangeMap == null)
				offsetChangeMap = OffsetChangeMap.Empty;

			ITextSource removedText;
			if (length == 0)
			{
				removedText = StringTextSource.Empty;
			}
			else if (length < 100)
			{
				removedText = new StringTextSource(rope.ToString(offset, length));
			}
			else
			{
				// use a rope if the removed string is long
				removedText = new RopeTextSource(rope.GetRange(offset, length));
			}
			var args = new DocumentChangeEventArgs(offset, removedText, newText, offsetChangeMap);

			// fire DocumentChanging event
			if (Changing != null)
				Changing(this, args);
			if (textChanging != null)
				textChanging(this, args);

			undoStack.Push(this, args);

			cachedText = null; // reset cache of complete document text
			fireTextChanged = true;
			var delayedEvents = new DelayedEvents();

			lock (lockObject)
			{
				// create linked list of checkpoints
				versionProvider.AppendChange(args);

				// now update the textBuffer and lineTree
				if (offset == 0 && length == rope.Length)
				{
					// optimize replacing the whole document
					rope.Clear();
					var newRopeTextSource = newText as RopeTextSource;
					if (newRopeTextSource != null)
						rope.InsertRange(0, newRopeTextSource.GetRope());
					else
						rope.InsertText(0, newText.Text);
					lineManager.Rebuild();
				}
				else
				{
					rope.RemoveRange(offset, length);
					lineManager.Remove(offset, length);
#if DEBUG
					lineTree.CheckProperties();
#endif
					var newRopeTextSource = newText as RopeTextSource;
					if (newRopeTextSource != null)
						rope.InsertRange(offset, newRopeTextSource.GetRope());
					else
						rope.InsertText(offset, newText.Text);
					lineManager.Insert(offset, newText);
#if DEBUG
					lineTree.CheckProperties();
#endif
				}
			}

			// update text anchors
			if (offsetChangeMap == null)
			{
				anchorTree.HandleTextChange(args.CreateSingleChangeMapEntry(), delayedEvents);
			}
			else
			{
				foreach (var entry in offsetChangeMap)
				{
					anchorTree.HandleTextChange(entry, delayedEvents);
				}
			}

			lineManager.ChangeComplete(args);

			// raise delayed events after our data structures are consistent again
			delayedEvents.RaiseEvents();

			// fire DocumentChanged event
			if (Changed != null)
				Changed(this, args);
			if (textChanged != null)
				textChanged(this, args);
		}