TextEditor

前段時間想寫richtextbox的代碼折行，可是網上沒有搜到，只看到了一個FastColoredTextBox還不支持中文，
這幾天忽然搜索文本編輯器看到一個編譯器，SharpDevelop 5.1，而後看到裏面有一個組件TextEditor，
試了試支持中文也能代碼折行，因此有時候作不出來能夠先放一放，指不定何時看到什麼就作出來了。

/// <summary>
        /// @@ 折行
        /// </summary>
        /// <param name="document"></param>
        /// <param name="fileName"></param>
        /// <param name="parseInformation"></param>
        /// <returns></returns>
        public List<FoldMarker> GenerateFoldMarkers(IDocument document, string fileName, object parseInformation)
        {
            List<FoldMarker> list = new List<FoldMarker>();

            var startLines = new Stack<int>();

            for (int i = 0; i < document.TotalNumberOfLines; i++)
            {
                // Get the text of current line.
                string text = document.GetText(document.GetLineSegment(i));

                if (text.Trim().Length >= 2 && text.Trim().Substring(0, 2) == "@@") // Look for method starts
                {
                    if (flag == false)
                    {
                        if (startLines.Count > 0)
                        {
                            int start = startLines.Pop();
                            // 判斷相鄰兩行是否都有標籤
                            if (start == i - 1)
                            {
                                startLines.Push(start);
                            }
                            else
                            {
                                if (count < 30)
                                {
                                    list.Add(new FoldMarker(document, start, document.GetLineSegment(start).Length, i - 1, 57, FoldType.TypeBody, "...}", true));
                                }
                                else
                                {
                                    list.Add(new FoldMarker(document, start, document.GetLineSegment(start).Length, i - 1, 57, FoldType.TypeBody, "...}", false));
                                }
                                count++;
                            }

                        }

                        startLines.Push(i);
                    }
                    else
                    {
                        flag = false;
                        startLines.Push(i);
                    }
                }
            }

            return list;
        }

        private int count = 0;

        //是不是第一個標籤
        private bool flag = true;

        /// <summary>
        /// 保存
        /// </summary>
        /// <param name="msg"></param>
        /// <param name="keyData"></param>
        /// <returns></returns>
        protected override bool ProcessCmdKey(ref System.Windows.Forms.Message msg, Keys keyData)
        {
            if (keyData == (Keys.Control | Keys.S))
            {
                textEditor.SaveFile(filename);
                //return base.ProcessCmdKey(ref msg, keyData);
            }
            else if (keyData == Keys.F5)
            {
                textEditor.LoadFile(filename);
            }

            return base.ProcessCmdKey(ref msg, keyData);
        }