Exemplo n.º 1
0
        public void ReceiveCommandInput(char command)
        {
            if (Text == null)
            {
                Text = "";
            }

            // Prevent alt gr from triggering any of these as that combination is often needed for special characters
            if (PlayerInput.IsAltDown())
            {
                return;
            }

            switch (command)
            {
            case '\b' when !Readonly:     //backspace
                if (PlayerInput.KeyDown(Keys.LeftControl) || PlayerInput.KeyDown(Keys.RightControl))
                {
                    SetText(string.Empty, false);
                    CaretIndex = Text.Length;
                }
                else if (selectedCharacters > 0)
                {
                    RemoveSelectedText();
                }
                else if (Text.Length > 0 && CaretIndex > 0)
                {
                    CaretIndex--;
                    SetText(Text.Remove(CaretIndex, 1));
                    CalculateCaretPos();
                    ClearSelection();
                }
                OnTextChanged?.Invoke(this, Text);
                break;

            case (char)0x3:     // ctrl-c
                CopySelectedText();
                break;

            case (char)0x16 when !Readonly:     // ctrl-v
                string text = GetCopiedText();
                RemoveSelectedText();
                if (SetText(Text.Insert(CaretIndex, text)))
                {
                    CaretIndex = Math.Min(Text.Length, CaretIndex + text.Length);
                    OnTextChanged?.Invoke(this, Text);
                }
                break;

            case (char)0x18:     // ctrl-x
                CopySelectedText();
                if (!Readonly)
                {
                    RemoveSelectedText();
                }
                break;

            case (char)0x1:     // ctrl-a
                if (PlayerInput.IsCtrlDown())
                {
                    SelectAll();
                }
                break;

            case (char)0x1A when !Readonly && !SubEditorScreen.IsSubEditor():     // ctrl-z
                text = memento.Undo();
                if (text != Text)
                {
                    ClearSelection();
                    SetText(text, false);
                    CaretIndex = Text.Length;
                    OnTextChanged?.Invoke(this, Text);
                }
                break;

            case (char)0x12 when !Readonly && !SubEditorScreen.IsSubEditor():     // ctrl-r
                text = memento.Redo();
                if (text != Text)
                {
                    ClearSelection();
                    SetText(text, false);
                    CaretIndex = Text.Length;
                    OnTextChanged?.Invoke(this, Text);
                }
                break;
            }
        }