public void Cut(object sender, EventArgs e)
{
if (textArea.SelectionManager.HasSomethingSelected)
{
if (CopyTextToClipboard(textArea.SelectionManager.SelectedText))
{
if (textArea.SelectionManager.SelectionIsReadonly)
{
return;
}
textArea.BeginUpdate();
textArea.Caret.Position = textArea.SelectionManager.SelectionCollection[0].StartPosition;
textArea.SelectionManager.RemoveSelectedText();
textArea.EndUpdate();
}
}
else if (textArea.Document.TextEditorProperties.CutCopyWholeLine)
{
int curLineNr = textArea.Document.GetLineNumberForOffset(textArea.Caret.Offset);
LineSegment lineWhereCaretIs = textArea.Document.GetLineSegment(curLineNr);
string caretLineText = textArea.Document.GetText(lineWhereCaretIs.Offset, lineWhereCaretIs.TotalLength);
textArea.SelectionManager.SetSelection(textArea.Document.OffsetToPosition(lineWhereCaretIs.Offset), textArea.Document.OffsetToPosition(lineWhereCaretIs.Offset + lineWhereCaretIs.TotalLength));
if (CopyTextToClipboard(caretLineText, true))
{
if (textArea.SelectionManager.SelectionIsReadonly)
{
return;
}
textArea.BeginUpdate();
textArea.Caret.Position = textArea.Document.OffsetToPosition(lineWhereCaretIs.Offset);
textArea.SelectionManager.RemoveSelectedText();
textArea.Document.RequestUpdate(new TextAreaUpdate(TextAreaUpdateType.PositionToEnd, new TextLocation(0, curLineNr)));
textArea.EndUpdate();
}
}
}
protected void OnDragDrop(object sender, DragEventArgs e)
{
Point p = textArea.PointToClient(new Point(e.X, e.Y));
if (e.Data.GetDataPresent(typeof(string)))
{
textArea.BeginUpdate();
textArea.Document.UndoStack.StartUndoGroup();
try {
int offset = textArea.Caret.Offset;
if (textArea.IsReadOnly(offset))
{
return;
}
if (e.Data.GetDataPresent(typeof(DefaultSelection)))
{
ISelection sel = (ISelection)e.Data.GetData(typeof(DefaultSelection));
if (sel.ContainsPosition(textArea.Caret.Position))
{
return;
}
if (GetDragDropEffect(e) == DragDropEffects.Move)
{
if (SelectionManager.SelectionIsReadOnly(textArea.Document, sel))
{
return;
}
int len = sel.Length;
textArea.Document.Remove(sel.Offset, len);
if (sel.Offset < offset)
{
offset -= len;
}
}
}
textArea.SelectionManager.ClearSelection();
InsertString(offset, (string)e.Data.GetData(typeof(string)));
textArea.Document.RequestUpdate(new TextAreaUpdate(TextAreaUpdateType.WholeTextArea));
} finally {
textArea.Document.UndoStack.EndUndoGroup();
textArea.EndUpdate();
}
}
}