void InstallKeyMap()
{
ActionMap.Register(new KeyStroke(Keys.A, InputFlags.ShortCutKey), args => SelectAll());
ActionMap.Register(new KeyStroke(Keys.X, InputFlags.ShortCutKey), args => CutSelectedText());
ActionMap.Register(new KeyStroke(Keys.C, InputFlags.ShortCutKey), args => CopySelectedText());
ActionMap.Register(new KeyStroke(Keys.V, InputFlags.ShortCutKey), args => PasteText());
ActionMap.Register(new KeyStroke(Keys.Back), OnBackKey);
ActionMap.Register(new KeyStroke(Keys.Delete), OnDeleteKey);
ActionMap.Register(new KeyStroke(Keys.Escape), ClearSelection);
}
public TextArea(IUIStyle style, IDocumentEditor <DocumentView <PlainTextDocument>, PlainTextDocument> editor) : base(style, editor)
{
ActionMap.Register(new KeyStroke(Keys.Enter), OnEnterPressed);
ActionMap.Register(new KeyStroke(Keys.PageUp), OnPageUpPressed);
ActionMap.Register(new KeyStroke(Keys.PageDown), OnPageDownPressed);
lineNumberRenderer = new LineNumberWidget(UIStyle);
lineNumberRenderer.AddNotify(this);
lineNumberRenderer.Anchor = AnchoredRect.CreateLeftAnchored();
lineNumberRenderer.DocumentView = Content;
RaiseChildAdded(0, lineNumberRenderer);
DisplayLineNumbers = true;
Caret.CaretChanged += OnCaretChanged;
}