/// <summary>
        /// tabs over the selected code
        /// </summary>
        /// <param name="code"></param>
        /// <param name="selStart"></param>
        /// <param name="selEnd"></param>
        /// <returns></returns>
        public static string InsertTabs(string code, int selStart, int selEnd)
        {
            //back up to previous newline or start

            //insert a tab
            StringBuilder sb = new StringBuilder(code);

            //move past next \r\n
            int    start  = CodeFormatter.GetLineStartIndex(code, selStart);
            string chunk  = code.Substring(start, selEnd - start);
            string tabbed = chunk.Replace("\r\n", "\r\n      ");

            //now extract the selected code and replace it with the tabbed code
            string left  = code.Substring(0, start);
            string right = code.Substring(selEnd);

            string newCode = left + tabbed + right;

            return(newCode);
        }
Beispiel #2
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        protected override void OnKeyPress(KeyPressEventArgs e)
        {
            if (e.KeyChar == '\t')
            {
                if (SelectionLength == 0)
                {//tabbing a line or inserting a template
                    if (lastKeys.Count == 4)
                    {
                        if (lastKeys[0] == Keys.I &&
                            lastKeys[1] == Keys.F &&
                            lastKeys[2] == Keys.Tab &&
                            lastKeys[3] == Keys.Tab)
                        {//insert if ()  {  }
                            //delete previous 6 spaces
                            int    selStart = SelectionStart;
                            string s        = Text.Remove(SelectionStart - 5, 5);
                            Text           = s;
                            SelectionStart = selStart - 5;


                            string template = " (  )\r\n";

                            int    indents = CodeFormatter.GetIndentSize(s, selStart - 5);
                            string spaces  = "";
                            for (int i = 0; i < indents; i++)
                            {
                                spaces += ' ';
                                ;
                            }
                            template += spaces + "{\r\n" + spaces + "}\r\n";


                            s              = s.Insert(SelectionStart, template);
                            Text           = s;
                            SelectionStart = selStart - 2;
                        }
                        else if (lastKeys[0] == Keys.S &&
                                 lastKeys[1] == Keys.E &&
                                 lastKeys[2] == Keys.Tab &&
                                 lastKeys[3] == Keys.Tab)
                        {
                            int    selStart = SelectionStart;
                            string s        = Text.Remove(SelectionStart - 5, 5);
                            Text           = s;
                            SelectionStart = selStart - 5;

                            string template = " \r\n";

                            int    indents     = CodeFormatter.GetIndentSize(s, selStart - 5);
                            string spaces      = "";
                            string dblspaces   = "";
                            int    indentLevel = indents / 5;
                            for (int i = 0; i < indents; i++)
                            {
                                spaces += ' ';
                            }
                            for (int i = 0; i < 5 * (indentLevel + 1); i++)
                            {
                                dblspaces += ' ';
                            }
                            template += spaces + "{\r\n" + dblspaces + "\r\n" + spaces + "}\r\n";


                            s              = s.Insert(SelectionStart, template);
                            Text           = s;
                            SelectionStart = selStart + dblspaces.Length + 1;
                        }
                        else
                        {
                            Paste("     ");
                        }
                    }
                    else
                    {
                        Paste("     ");
                    }

                    e.Handled = true;
                }
                else
                {//block tabbing
                    string newCode = CodeFormatter.InsertTabs(Text,
                                                              SelectionStart,
                                                              SelectionStart + SelectionLength);
                    Text      = newCode;
                    e.Handled = true;
                }
            }
        }