public bool DeleteToEndOfLine() {
if (!Selection.IsEmpty) {
var oldSelection = new SavedCaretSelection(this);
Span deleteSpan;
if (oldSelection.ActivePoint < oldSelection.AnchorPoint)
deleteSpan = new Span(oldSelection.ActivePoint.Position, oldSelection.AnchorPoint.Position - oldSelection.ActivePoint.Position);
else {
var line = Snapshot.GetLineFromPosition(oldSelection.ActivePoint.Position);
deleteSpan = new Span(oldSelection.AnchorPoint.Position, line.End.Position - oldSelection.AnchorPoint.Position);
}
TextBuffer.Delete(deleteSpan);
oldSelection.UpdatePositions();
}
else {
var line = Snapshot.GetLineFromPosition(Caret.Position.BufferPosition.Position);
TextBuffer.Delete(new Span(Caret.Position.BufferPosition.Position, line.End.Position - Caret.Position.BufferPosition.Position));
}
return true;
}
public bool DeleteWordToRight() {
if (Selection.ActivePoint < Selection.AnchorPoint) {
DeleteSelection();
return true;
}
var selSpan = GetSelectionOrCaretIfNoSelection();
var wordPoint = GetPointOfRightWord(selSpan.End);
var oldSelection = new SavedCaretSelection(this);
var newSelSpan = new VirtualSnapshotSpan(selSpan.Start, new VirtualSnapshotPoint(wordPoint));
if (Selection.IsEmpty || Selection.Mode != TextSelectionMode.Box)
TextBuffer.Delete(newSelSpan.SnapshotSpan.Span);
else {
var line = Snapshot.GetLineFromPosition(wordPoint.Position);
int column = wordPoint - line.Start;
using (var ed = TextBuffer.CreateEdit()) {
foreach (var span in Selection.SelectedSpans) {
line = Snapshot.GetLineFromPosition(span.Start.Position);
var end = line.Start + Math.Min(line.Length, column);
if (span.Start < end) {
var newSpan = new SnapshotSpan(span.Start, end);
ed.Delete(newSpan);
}
}
ed.Apply();
}
}
oldSelection.UpdatePositions();
return true;
}
public bool DeleteHorizontalWhiteSpace() {
var oldSelection = new SavedCaretSelection(this);
var span = Selection.IsEmpty ? GetDefaultHorizontalWhitespaceSpan(Caret.Position.BufferPosition) : Selection.StreamSelectionSpan.SnapshotSpan.Span;
using (var ed = TextBuffer.CreateEdit()) {
foreach (var deleteSpan in GetHorizontalWhiteSpaceSpans(Snapshot, span)) {
Debug.Assert(deleteSpan.Span.Length > 0);
ed.Delete(deleteSpan.Span);
if (deleteSpan.AddSpace) {
// VS always inserts a space character, even if the deleted whitespace chars were all tabs
ed.Insert(deleteSpan.Span.Start, " ");
}
}
ed.Apply();
}
oldSelection.UpdatePositions();
return true;
}
