Common/Controller.cs

   1 /*\r
   2  * Copyright (C) 2013 FooProject\r
   3  * * This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by\r
   4  * the Free Software Foundation; either version 3 of the License, or (at your option) any later version.\r
   5 \r
   6  * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of \r
   7  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.\r
   8 \r
   9 You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>.\r
  10  */\r
  11 using System;\r
  12 using System.Globalization;\r
  13 using System.Text;\r
  14 using System.Linq;\r
  15 using System.Diagnostics;\r
  16 using System.Text.RegularExpressions;\r
  17 #if WINFORM\r
  18 using System.Drawing;\r
  19 #endif\r
  20 \r
  21 namespace FooEditEngine\r
  22 {\r
  23     internal enum MoveFlow\r
  24     {\r
  25         Horizontical,\r
  26         Vertical,\r
  27     }\r
  28     internal enum ScrollDirection\r
  29     {\r
  30         Up,\r
  31         Down,\r
  32         Left,\r
  33         Right,\r
  34     }\r
  35     /// <summary>\r
  36     /// ユーザー側からの処理を担当するクラス。一部を除き、こちらで行われた操作はアンドゥの対象になります\r
  37     /// </summary>\r
  38     internal sealed class Controller\r
  39     {\r
  40         EditView View;\r
  41         Document Document;\r
  42         int AnchorIndex;\r
  43         \r
  44         public Controller(Document doc, EditView view)\r
  45         {\r
  46             this.Document = doc;\r
  47             this.Document.Update += new DocumentUpdateEventHandler(Document_Update);\r
  48             this.View = view;\r
  49             this.View.render.ChangedRightToLeft += render_ChangedRightToLeft;\r
  50             this.View.render.ChangedRenderResource += render_ChangedRenderResource;\r
  51             this.View.PerformLayouted += View_LineBreakChanged;\r
  52             this.View.PageBoundChanged += View_PageBoundChanged;\r
  53             this.Document.Clear();\r
  54             this.SelectionChanged += new EventHandler((s, e) => { });\r
  55         }\r
  56 \r
  57         /// <summary>\r
  58         /// 選択領域変更時に通知される\r
  59         /// </summary>\r
  60         public event EventHandler SelectionChanged;\r
  61 \r
  62         /// <summary>\r
  63         /// 矩形選択モードなら真を返し、そうでない場合は偽を返す\r
  64         /// </summary>\r
  65         public bool RectSelection\r
  66         {\r
  67             get;\r
  68             set;\r
  69         }\r
  70 \r
  71         /// <summary>\r
  72         /// 選択範囲の開始位置\r
  73         /// </summary>\r
  74         /// <remarks>SelectionLengthが0の場合、キャレット位置を表します</remarks>\r
  75         public int SelectionStart\r
  76         {\r
  77             get\r
  78             {\r
  79                 if (this.View.Selections.Count == 0)\r
  80                     return this.AnchorIndex;\r
  81                 else\r
  82                     return this.View.Selections.First().start;\r
  83             }\r
  84         }\r
  85 \r
  86         /// <summary>\r
  87         /// 選択範囲の長さ\r
  88         /// </summary>\r
  89         /// <remarks>矩形選択モードの場合、選択範囲の文字数ではなく、開始位置から終了位置までの長さとなります</remarks>\r
  90         public int SelectionLength\r
  91         {\r
  92             get\r
  93             {\r
  94                 if (this.View.Selections.Count == 0)\r
  95                     return 0;\r
  96                 Selection last = this.View.Selections.Last();\r
  97                 return last.start + last.length - this.SelectionStart;\r
  98             }\r
  99         }\r
 100 \r
 101         /// <summary>\r
 102         /// 選択範囲内の文字列を返す\r
 103         /// </summary>\r
 104         /// <remarks>\r
 105         /// 未選択状態で代入したときは追加され、そうでない場合は選択範囲の文字列と置き換えられます。\r
 106         /// </remarks>\r
 107         public string SelectedText\r
 108         {\r
 109             get\r
 110             {\r
 111                 if (this.View.LayoutLines.Count == 0 || this.View.Selections.Count == 0)\r
 112                     return null;\r
 113                 string str;\r
 114                 if (this.RectSelection)\r
 115                     return GetTextFromRectangleSelectArea(this.View.Selections);\r
 116                 else\r
 117                     return GetTextFromLineSelectArea(this.View.Selections).Replace(Document.NewLine.ToString(), Environment.NewLine);\r
 118             }\r
 119             set\r
 120             {\r
 121                 if (this.Document.FireUpdateEvent == false)\r
 122                     throw new InvalidOperationException("");\r
 123                 if (value == null)\r
 124                     return;\r
 125                 this.RepleaceSelectionArea(this.View.Selections, value.Replace(Environment.NewLine,Document.NewLine.ToString()));\r
 126             }\r
 127         }\r
 128 \r
 129         /// <summary>\r
 130         /// 選択範囲が逆転しているかどうかを判定する\r
 131         /// </summary>\r
 132         /// <returns>逆転しているなら真を返す</returns>\r
 133         public bool IsReverseSelect()\r
 134         {\r
 135             int index = this.View.LayoutLines.GetIndexFromTextPoint(this.View.CaretPostion);\r
 136             return index < this.AnchorIndex;\r
 137         }\r
 138 \r
 139         /// <summary>\r
 140         /// 指定された範囲を選択する\r
 141         /// </summary>\r
 142         /// <param name="start"></param>\r
 143         /// <param name="length"></param>\r
 144         /// <remarks>RectSelectionの値によって動作が変わります。真の場合は矩形選択モードに、そうでない場合は行ごとに選択されます</remarks>\r
 145         public void Select(int start, int length)\r
 146         {\r
 147             if (this.Document.FireUpdateEvent == false)\r
 148                 throw new InvalidOperationException("");\r
 149             if (start < 0 || start + length < 0 || start + length > this.Document.Length)\r
 150                 throw new ArgumentOutOfRangeException("startかendが指定できる範囲を超えてます");\r
 151             this.View.Selections.Clear();\r
 152             if (length < 0)\r
 153             {\r
 154                 int oldStart = start;\r
 155                 start += length;\r
 156                 length = oldStart - start;\r
 157             }\r
 158             if (this.RectSelection && length != 0)\r
 159             {\r
 160                 TextPoint startTextPoint = this.View.GetLayoutLineFromIndex(start);\r
 161                 TextPoint endTextPoint = this.View.GetLayoutLineFromIndex(start + length);\r
 162                 this.SelectByRectangle(new TextRectangle(startTextPoint, endTextPoint));\r
 163                 if (startTextPoint.col == endTextPoint.col)\r
 164                     this.View.InsertPoint = new SelectCollection(this.View.Selections);\r
 165                 else\r
 166                     this.View.InsertPoint = null;\r
 167             }\r
 168             else if(length != 0)\r
 169             {\r
 170                 this.View.Selections.Add(Selection.Create(start, length));\r
 171                 this.View.InsertPoint = null;\r
 172             }\r
 173             this.SelectionChanged(this, null);\r
 174         }\r
 175 \r
 176         public void Select(TextPoint tp, int width, int height)\r
 177         {\r
 178             if (this.Document.FireUpdateEvent == false || !this.RectSelection)\r
 179                 throw new InvalidOperationException("");\r
 180             TextPoint end = tp;\r
 181 \r
 182             end.row = tp.row + height;\r
 183             end.col = tp.col + width;\r
 184             \r
 185             if (end.row > this.View.LayoutLines.Count - 1)\r
 186                 throw new ArgumentOutOfRangeException("");\r
 187             \r
 188             this.View.Selections.Clear();\r
 189             \r
 190             this.SelectByRectangle(new TextRectangle(tp,end));\r
 191             \r
 192             if (width == 0)\r
 193                 this.View.InsertPoint = new SelectCollection(this.View.Selections);\r
 194             else\r
 195                 this.View.InsertPoint = null;\r
 196 \r
 197             this.SelectionChanged(this, null);\r
 198         }\r
 199 \r
 200         private void SelectByRectangle(TextRectangle rect)\r
 201         {\r
 202             if (this.Document.FireUpdateEvent == false)\r
 203                 throw new InvalidOperationException("");\r
 204             if (rect.TopLeft <= rect.BottomRight)\r
 205             {\r
 206                 for (int i = rect.TopLeft.row; i <= rect.BottomLeft.row; i++)\r
 207                 {\r
 208                     int length = this.View.LayoutLines.GetLengthFromLineNumber(i);\r
 209                     int leftCol = rect.TopLeft.col, rightCol = rect.TopRight.col, lastCol = length;\r
 210                     if(length > 0 && this.View.LayoutLines[i][length - 1] == Document.NewLine)\r
 211                         lastCol =  length - 1;\r
 212                     if (lastCol < 0)\r
 213                         lastCol = 0;\r
 214                     if (rect.TopLeft.col > lastCol)\r
 215                         leftCol = lastCol;\r
 216                     if (rect.TopRight.col > lastCol)\r
 217                         rightCol = lastCol;\r
 218 \r
 219                     int StartIndex = this.View.LayoutLines.GetIndexFromTextPoint(new TextPoint(i, leftCol));\r
 220                     int EndIndex = this.View.LayoutLines.GetIndexFromTextPoint(new TextPoint(i, rightCol));\r
 221 \r
 222                     Selection sel;\r
 223                     sel = Selection.Create(StartIndex, EndIndex - StartIndex);\r
 224 \r
 225                     this.View.Selections.Add(sel);\r
 226                 }\r
 227             }\r
 228         }\r
 229 \r
 230         /// <summary>\r
 231         /// 単語単位で選択する\r
 232         /// </summary>\r
 233         /// <param name="index">探索を開始するインデックス</param>\r
 234         public void SelectWord(int index)\r
 235         {\r
 236             if (this.Document.FireUpdateEvent == false)\r
 237                 throw new InvalidOperationException("");\r
 238 \r
 239             if (this.Document.Length <= 0 || index >= this.Document.Length)\r
 240                 return;\r
 241 \r
 242             Document str = this.Document;\r
 243 \r
 244             int start = index;\r
 245             while (start > 0 && !Util.IsWordSeparator(str[start]))\r
 246                 start--;\r
 247 \r
 248             if (Util.IsWordSeparator(str[start]))\r
 249                 start++;\r
 250 \r
 251             int end = index;\r
 252             while (end < this.Document.Length && !Util.IsWordSeparator(str[end]))\r
 253                 end++;\r
 254 \r
 255             this.Select(start, end - start);\r
 256         }\r
 257 \r
 258         /// <summary>\r
 259         /// 選択範囲内のUTF32コードポイントを文字列に変換します\r
 260         /// </summary>\r
 261         /// <returns>成功した場合は真。そうでない場合は偽を返す</returns>\r
 262         public bool ConvertToChar()\r
 263         {\r
 264             if (this.SelectionLength == 0 || this.RectSelection)\r
 265                 return false;\r
 266             string str = this.Document.ToString(this.SelectionStart, this.SelectionLength);\r
 267             string[] codes = str.Split(new char[] { ' ' },StringSplitOptions.RemoveEmptyEntries);\r
 268             StringBuilder result = new StringBuilder();\r
 269             foreach (string code in codes)\r
 270             {\r
 271                 int utf32_code;\r
 272                 if (code[0] != 'U')\r
 273                     return false;\r
 274                 if (Int32.TryParse(code.TrimStart('U'),NumberStyles.HexNumber,null, out utf32_code))\r
 275                     result.Append(Char.ConvertFromUtf32(utf32_code));\r
 276                 else\r
 277                     return false;\r
 278             }\r
 279             this.Document.Replace(this.SelectionStart, this.SelectionLength, result.ToString());\r
 280             return true;\r
 281         }\r
 282 \r
 283         /// <summary>\r
 284         /// 選択文字列をUTF32のコードポイントに変換します\r
 285         /// </summary>\r
 286         public void ConvertToCodePoint()\r
 287         {\r
 288             if (this.SelectionLength == 0 || this.RectSelection)\r
 289                 return;\r
 290             string str = this.Document.ToString(this.SelectionStart, this.SelectionLength);\r
 291             StringInfo info = new StringInfo(str);\r
 292             StringBuilder result = new StringBuilder();\r
 293             for (int i = 0; i < str.Length;)\r
 294             {\r
 295                 int utf32_code = Char.ConvertToUtf32(str, i); \r
 296                 result.Append("U" + Convert.ToString(utf32_code,16));\r
 297                 result.Append(' ');\r
 298                 if(Char.IsHighSurrogate(str[i]))\r
 299                     i += 2;\r
 300                 else\r
 301                     i++;\r
 302             }\r
 303             this.Document.Replace(this.SelectionStart, this.SelectionLength, result.ToString());\r
 304         }\r
 305 \r
 306         /// <summary>\r
 307         /// 選択を解除する\r
 308         /// </summary>\r
 309         public void DeSelectAll()\r
 310         {\r
 311             if (this.Document.FireUpdateEvent == false)\r
 312                 throw new InvalidOperationException("");\r
 313 \r
 314             this.View.Selections.Clear();\r
 315         }\r
 316 \r
 317         /// <summary>\r
 318         /// 任意のマーカーかどうか\r
 319         /// </summary>\r
 320         /// <param name="tp"></param>\r
 321         /// <param name="type"></param>\r
 322         /// <returns>真ならマーカーがある</returns>\r
 323         public bool IsMarker(TextPoint tp,HilightType type)\r
 324         {\r
 325             if (this.Document.FireUpdateEvent == false)\r
 326                 throw new InvalidOperationException("");\r
 327             int index = this.View.LayoutLines.GetIndexFromTextPoint(tp);\r
 328             return this.IsMarker(index, type);\r
 329         }\r
 330 \r
 331         /// <summary>\r
 332         /// 任意のマーカーかどうか判定する\r
 333         /// </summary>\r
 334         /// <param name="index"></param>\r
 335         /// <param name="type"></param>\r
 336         /// <returns>真ならマーカーがある</returns>\r
 337         public bool IsMarker(int index, HilightType type)\r
 338         {\r
 339             foreach (Marker m in this.Document.GetMarkers(index))\r
 340             {\r
 341                 if (m.hilight == type)\r
 342                     return true;\r
 343             }\r
 344             return false;\r
 345         }\r
 346 \r
 347         /// <summary>\r
 348         /// キャレット位置を再調整する\r
 349         /// </summary>\r
 350         public void AdjustCaret()\r
 351         {\r
 352             int row = this.View.CaretPostion.row;\r
 353             if (row > this.View.LayoutLines.Count - 1)\r
 354                 row = this.View.LayoutLines.Count - 1;\r
 355             int col = this.View.CaretPostion.col;\r
 356             if (col > 0 && col > this.View.LayoutLines[row].Length)\r
 357                 col = this.View.LayoutLines[row].Length;\r
 358             this.JumpCaret(row, col);\r
 359         }\r
 360 \r
 361         /// <summary>\r
 362         /// キャレットを指定した位置に移動させる\r
 363         /// </summary>\r
 364         /// <param name="index"></param>\r
 365         /// <param name="autoExpand">折り畳みを展開するなら真</param>\r
 366         public void JumpCaret(int index,bool autoExpand = true)\r
 367         {\r
 368             if (index < 0 || index > this.Document.Length)\r
 369                 throw new ArgumentOutOfRangeException("indexが設定できる範囲を超えています");\r
 370             TextPoint tp = this.View.GetLayoutLineFromIndex(index);\r
 371 \r
 372             this.JumpCaret(tp.row, tp.col,autoExpand);\r
 373          }\r
 374 \r
 375         /// <summary>\r
 376         /// キャレットを指定した位置に移動させる\r
 377         /// </summary>\r
 378         /// <param name="row"></param>\r
 379         /// <param name="col"></param>\r
 380         /// <param name="autoExpand">折り畳みを展開するなら真</param>\r
 381         public void JumpCaret(int row, int col, bool autoExpand = true)\r
 382         {\r
 383             if (this.Document.FireUpdateEvent == false)\r
 384                 throw new InvalidOperationException("");\r
 385 \r
 386             this.View.JumpCaret(row, col,autoExpand);\r
 387 \r
 388             this.View.AdjustCaretAndSrc();\r
 389 \r
 390             this.SelectWithMoveCaret(false);\r
 391         }\r
 392 \r
 393         /// <summary>\r
 394         /// ドキュメントの先頭に移動する\r
 395         /// </summary>\r
 396         /// <param name="isSelected"></param>\r
 397         public void JumpToHead(bool isSelected)\r
 398         {\r
 399             if (this.View.TryScroll(0, 0))\r
 400                 return;\r
 401             this.View.JumpCaret(0, 0);\r
 402             this.View.AdjustCaretAndSrc();\r
 403             this.SelectWithMoveCaret(isSelected);\r
 404         }\r
 405 \r
 406         /// <summary>\r
 407         /// ドキュメントの終わりにに移動する\r
 408         /// </summary>\r
 409         /// <param name="isSelected"></param>\r
 410         public void JumpToEnd(bool isSelected)\r
 411         {\r
 412             int srcRow = this.View.LayoutLines.Count - this.View.LineCountOnScreen - 1;\r
 413             if(srcRow < 0)\r
 414                 srcRow = 0;\r
 415             if (this.View.TryScroll(0, srcRow))\r
 416                 return;\r
 417             this.View.JumpCaret(this.View.LayoutLines.Count - 1, 0);\r
 418             this.View.AdjustCaretAndSrc();\r
 419             this.SelectWithMoveCaret(isSelected);\r
 420         }\r
 421 \r
 422         /// <summary>\r
 423         /// スクロールする\r
 424         /// </summary>\r
 425         /// <param name="dir">方向を指定する</param>\r
 426         /// <param name="delta">スクロールする量。ScrollDirectionの値がUpやDownなら行数。LeftやRightならピクセル単位の値となる</param>\r
 427         /// <param name="isSelected">選択状態にするなら真</param>\r
 428         /// <param name="withCaret">同時にキャレットを移動させるなら真</param>\r
 429         public void Scroll(ScrollDirection dir, int delta, bool isSelected,bool withCaret)\r
 430         {\r
 431             if (this.Document.FireUpdateEvent == false)\r
 432                 throw new InvalidOperationException("");\r
 433             int toRow = this.View.Src.Row;\r
 434             double toX = this.View.Src.X;\r
 435             switch (dir)\r
 436             {\r
 437                 case ScrollDirection.Up:\r
 438                     toRow = Math.Max(0, this.View.Src.Row - delta);\r
 439                     toRow = this.View.AdjustRow(toRow, false);\r
 440                     break;\r
 441                 case ScrollDirection.Down:\r
 442                     toRow = Math.Min(this.View.Src.Row + delta, this.View.LayoutLines.Count - 1);\r
 443                     toRow = this.View.AdjustRow(toRow, true);\r
 444                     break;\r
 445                 case ScrollDirection.Left:\r
 446                     toX -= delta;\r
 447                     break;\r
 448                 case ScrollDirection.Right:\r
 449                     toX += delta;\r
 450                     break;\r
 451                 default:\r
 452                     throw new ArgumentOutOfRangeException();\r
 453             }\r
 454             this.Scroll(toX, toRow, isSelected, withCaret);\r
 455         }\r
 456 \r
 457         /// <summary>\r
 458         /// スクロールする\r
 459         /// </summary>\r
 460         /// <param name="toX">スクロール先の座標</param>\r
 461         /// <param name="toRow">スクロール先の行</param>\r
 462         /// <param name="isSelected">選択状態にするなら真</param>\r
 463         /// <param name="withCaret">同時にキャレットを移動させるなら真</param>\r
 464         public void Scroll(double toX, int toRow, bool isSelected, bool withCaret)\r
 465         {\r
 466             if (withCaret)\r
 467             {\r
 468                 this.View.Scroll(toX, toRow);\r
 469                 this.View.JumpCaret(toRow, 0);\r
 470                 this.View.AdjustCaretAndSrc();\r
 471                 this.SelectWithMoveCaret(isSelected);\r
 472             }\r
 473             else\r
 474             {\r
 475                 this.View.Scroll(toX, toRow);\r
 476                 this.View.IsFocused = false;\r
 477             }\r
 478         }\r
 479 \r
 480         /// <summary>\r
 481         /// キャレットを桁方向に移動させる\r
 482         /// </summary>\r
 483         /// <returns>移動できない場合は真を返す</returns>\r
 484         /// <param name="realLength">負の値なら左側へ、そうでないなら右側へ移動する</param>\r
 485         /// <param name="isSelected">選択範囲とするなら真。そうでないなら偽</param>\r
 486         /// <param name="alignWord">単語単位で移動するなら真。そうでないなら偽</param>\r
 487         public void MoveCaretHorizontical(int realLength, bool isSelected,bool alignWord = false)\r
 488         {\r
 489             for (int i = Math.Abs(realLength); i > 0; i--)\r
 490             {\r
 491                 bool MoveFlow = realLength > 0;\r
 492                 if (this.View.render.RightToLeft)\r
 493                     MoveFlow = !MoveFlow;\r
 494                 this.MoveCaretHorizontical(MoveFlow);\r
 495 \r
 496                 if (alignWord)\r
 497                     this.AlignNearestWord(MoveFlow);\r
 498             }\r
 499             this.View.AdjustCaretAndSrc(AdjustFlow.Col);\r
 500             this.SelectWithMoveCaret(isSelected);\r
 501         }\r
 502 \r
 503         void AlignNearestWord(bool MoveFlow)\r
 504         {\r
 505             string str = this.View.LayoutLines[this.View.CaretPostion.row];\r
 506             while (this.View.CaretPostion.col > 0 &&\r
 507                 this.View.CaretPostion.col < str.Length &&\r
 508                 str[this.View.CaretPostion.col] != Document.NewLine)\r
 509             {\r
 510                 if (!Util.IsWordSeparator(str[this.View.CaretPostion.col]))\r
 511                 {\r
 512                     this.MoveCaretHorizontical(MoveFlow);\r
 513                 }\r
 514                 else\r
 515                 {\r
 516                     if(MoveFlow)\r
 517                         this.MoveCaretHorizontical(MoveFlow);\r
 518                     break;\r
 519                 }\r
 520             }\r
 521         }\r
 522 \r
 523         /// <summary>\r
 524         /// キャレットを行方向に移動させる\r
 525         /// </summary>\r
 526         /// <returns>再描写する必要があるなら真を返す</returns>\r
 527         /// <param name="deltarow">移動量</param>\r
 528         /// <param name="isSelected"></param>\r
 529         public void MoveCaretVertical(int deltarow,bool isSelected)\r
 530         {\r
 531             for (int i = Math.Abs(deltarow); i > 0; i--)\r
 532                 this.MoveCaretVertical(deltarow > 0);\r
 533             this.View.AdjustCaretAndSrc(AdjustFlow.Both);\r
 534             this.SelectWithMoveCaret(isSelected);\r
 535         }\r
 536 \r
 537         /// <summary>\r
 538         /// キャレット位置の文字を一文字削除する\r
 539         /// </summary>\r
 540         public void DoDeleteAction()\r
 541         {\r
 542             if (this.SelectionLength != 0)\r
 543             {\r
 544                 this.SelectedText = "";\r
 545                 return;\r
 546             }\r
 547             \r
 548             if (this.Document.FireUpdateEvent == false)\r
 549                 throw new InvalidOperationException("");\r
 550 \r
 551             TextPoint CaretPostion = this.View.CaretPostion;\r
 552             int index = this.View.GetIndexFromLayoutLine(CaretPostion);\r
 553 \r
 554             if (index == this.Document.Length)\r
 555                 return;\r
 556 \r
 557             int lineHeadIndex = this.View.LayoutLines.GetIndexFromLineNumber(CaretPostion.row);\r
 558             int next = this.View.LayoutLines.GetLayout(CaretPostion.row).AlignIndexToNearestCluster(CaretPostion.col, AlignDirection.Forward) + lineHeadIndex;\r
 559 \r
 560             if (this.Document[index] == Document.NewLine)\r
 561                 next = index + 1;\r
 562 \r
 563             this.Document.Replace(index, next - index, "");\r
 564         }\r
 565 \r
 566         /// <summary>\r
 567         /// キャレット位置の文字を一文字削除し、キャレット位置を後ろにずらす\r
 568         /// </summary>\r
 569         public void DoBackSpaceAction()\r
 570         {\r
 571             if (this.View.InsertPoint != null)\r
 572             {\r
 573                 this.ReplaceBeforeSelectionArea(this.View.Selections, 1, "");\r
 574                 return;\r
 575             }\r
 576             else if (this.SelectionLength > 0)\r
 577             {\r
 578                 this.SelectedText = "";\r
 579                 return;\r
 580             }\r
 581 \r
 582             if (this.Document.FireUpdateEvent == false)\r
 583                 throw new InvalidOperationException("");\r
 584 \r
 585             TextPoint CurrentPostion = this.View.CaretPostion;\r
 586 \r
 587             if (CurrentPostion.row == 0 && CurrentPostion.col == 0)\r
 588                 return;\r
 589 \r
 590             int oldIndex = this.View.GetIndexFromLayoutLine(CurrentPostion);\r
 591 \r
 592             int newCol, newIndex;\r
 593             if (CurrentPostion.col > 0)\r
 594             {\r
 595                 newCol = this.View.LayoutLines.GetLayout(CurrentPostion.row).AlignIndexToNearestCluster(CurrentPostion.col - 1, AlignDirection.Back);\r
 596                 newIndex = this.View.GetIndexFromLayoutLine(new TextPoint(CurrentPostion.row, newCol));\r
 597             }\r
 598             else\r
 599             {\r
 600                 newIndex = this.View.GetIndexFromLayoutLine(CurrentPostion);\r
 601                 newIndex--;\r
 602             }\r
 603 \r
 604             this.Document.Replace(newIndex, oldIndex - newIndex, "");\r
 605         }\r
 606 \r
 607         /// <summary>\r
 608         /// キャレット位置で行を分割する\r
 609         /// </summary>\r
 610         public void DoEnterAction()\r
 611         {            \r
 612             this.DoInputChar('\n');\r
 613         }\r
 614 \r
 615         /// <summary>\r
 616         /// キャレット位置に文字を入力し、その分だけキャレットを進める。isInsertModeの値により動作が変わります\r
 617         /// </summary>\r
 618         /// <param name="ch"></param>\r
 619         public void DoInputChar(char ch)\r
 620         {\r
 621             this.DoInputString(ch.ToString());\r
 622         }\r
 623 \r
 624         /// <summary>\r
 625         /// キャレット位置に文字列を挿入し、その分だけキャレットを進める。isInsertModeの値により動作が変わります\r
 626         /// </summary>\r
 627         /// <param name="str"></param>\r
 628         /// <param name="fromTip"></param>\r
 629         public void DoInputString(string str,bool fromTip = false)\r
 630         {\r
 631             if (this.View.InsertPoint != null)\r
 632             {\r
 633                 this.ReplaceBeforeSelectionArea(this.View.Selections, 0, str);\r
 634                 return;\r
 635             }\r
 636             else if (this.SelectionLength != 0)\r
 637             {\r
 638                 this.RepleaceSelectionArea(this.View.Selections, str, fromTip);\r
 639                 return;\r
 640             }\r
 641 \r
 642             if (this.Document.FireUpdateEvent == false)\r
 643                 throw new InvalidOperationException("");\r
 644 \r
 645             int index = this.View.GetIndexFromLayoutLine(this.View.CaretPostion);\r
 646             int length = 0;\r
 647             TextPoint CaretPos = this.View.CaretPostion;\r
 648             if (this.View.InsertMode == false && index < this.Document.Length && this.Document[index] != Document.NewLine)\r
 649             {\r
 650                 string lineString = this.View.LayoutLines[CaretPos.row];\r
 651                 int end = this.View.LayoutLines.GetLayout(CaretPos.row).AlignIndexToNearestCluster(CaretPos.col + str.Length - 1, AlignDirection.Forward);\r
 652                 if (end > lineString.Length - 1)\r
 653                     end = lineString.Length - 1;\r
 654                 end += this.View.LayoutLines.GetIndexFromLineNumber(CaretPos.row);\r
 655                 length = end - index;\r
 656             }\r
 657             if (str == Document.NewLine.ToString())\r
 658             {\r
 659                 int lineHeadIndex = this.View.LayoutLines.GetIndexFromLineNumber(CaretPos.row);\r
 660                 int lineLength = this.View.LayoutLines.GetLengthFromLineNumber(CaretPos.row);\r
 661                 FoldingItem foldingData = this.View.LayoutLines.FoldingCollection.GetFarestHiddenFoldingData(lineHeadIndex, lineLength);\r
 662                 if (foldingData != null && !foldingData.Expand && index > foldingData.Start && index <= foldingData.End)\r
 663                     index = foldingData.End + 1;\r
 664             }\r
 665             this.Document.Replace(index, length, str);\r
 666         }\r
 667 \r
 668         /// <summary>\r
 669         /// キャレットの移動に合わせて選択する\r
 670         /// </summary>\r
 671         /// <param name="isSelected">選択状態にするかどうか</param>\r
 672         /// <remarks>\r
 673         /// キャレットを移動後、このメソッドを呼び出さない場合、Select()メソッドは正常に機能しません\r
 674         /// </remarks>\r
 675         void SelectWithMoveCaret(bool isSelected)\r
 676         {\r
 677             if (this.View.CaretPostion.col < 0 || this.View.CaretPostion.row < 0)\r
 678                 return;\r
 679 \r
 680             if (this.Document.FireUpdateEvent == false)\r
 681                 throw new InvalidOperationException("");\r
 682 \r
 683             int CaretPostion = this.View.GetIndexFromLayoutLine(this.View.CaretPostion);\r
 684             \r
 685             SelectCollection Selections = this.View.Selections;\r
 686             if (isSelected)\r
 687             {\r
 688                 this.Select(this.AnchorIndex, CaretPostion - this.AnchorIndex);\r
 689             }else{\r
 690                 this.Select(CaretPostion, 0);\r
 691                 this.AnchorIndex = CaretPostion;\r
 692                 this.View.InsertPoint = null;\r
 693             }\r
 694         }\r
 695 \r
 696         /// <summary>\r
 697         /// JumpCaretで移動した位置からキャレットを移動し、選択状態にする\r
 698         /// </summary>\r
 699         /// <param name="tp"></param>\r
 700         public void MoveCaretAndSelect(TextPoint tp)\r
 701         {\r
 702             int CaretPostion = this.View.GetIndexFromLayoutLine(tp);\r
 703             this.Select(this.AnchorIndex, CaretPostion - this.AnchorIndex);\r
 704             this.View.JumpCaret(tp.row, tp.col);\r
 705             this.View.AdjustCaretAndSrc();\r
 706         }\r
 707 \r
 708         public void MoveSelectBefore(TextPoint tp)\r
 709         {\r
 710             int NewAnchorIndex;\r
 711             int SelectionLength;\r
 712             if (this.IsReverseSelect())\r
 713             {\r
 714                 NewAnchorIndex = this.View.GetIndexFromLayoutLine(tp);\r
 715                 SelectionLength = this.SelectionLength + NewAnchorIndex - this.AnchorIndex;\r
 716                 this.Select(this.SelectionStart, SelectionLength);\r
 717             }\r
 718             else\r
 719             {\r
 720                 NewAnchorIndex = this.View.GetIndexFromLayoutLine(tp);\r
 721                 SelectionLength = this.SelectionLength + this.AnchorIndex - NewAnchorIndex;\r
 722                 this.Select(NewAnchorIndex, SelectionLength);\r
 723             }\r
 724             this.AnchorIndex = NewAnchorIndex;\r
 725         }\r
 726 \r
 727         /// <summary>\r
 728         /// キャレット位置を既定の位置に戻す\r
 729         /// </summary>\r
 730         public void ResetCaretPostion()\r
 731         {\r
 732             this.JumpCaret(0);\r
 733         }\r
 734 \r
 735         /// <summary>\r
 736         /// 行単位で移動後のキャレット位置を取得する\r
 737         /// </summary>\r
 738         /// <param name="count">移動量</param>\r
 739         /// <param name="current">現在のキャレット位置</param>\r
 740         /// <returns>移動後のキャレット位置</returns>\r
 741         public TextPoint GetTextPointAfterMoveLine(int count, TextPoint current)\r
 742         {\r
 743             int row = current.row + count;\r
 744 \r
 745             if (row < 0)\r
 746                 row = 0;\r
 747             else if (row >= this.View.LayoutLines.Count)\r
 748                 row = this.View.LayoutLines.Count - 1;\r
 749 \r
 750             row = this.View.AdjustRow(row, count > 0);\r
 751 \r
 752             double colpos = this.View.GetColPostionFromIndex(current.row, current.col);\r
 753             int col = this.View.GetIndexFromColPostion(row, colpos);\r
 754 \r
 755             return new TextPoint(row, col);\r
 756         }\r
 757 \r
 758         /// <summary>\r
 759         /// 選択文字列のインデントを一つ増やす\r
 760         /// </summary>\r
 761         public void UpIndent()\r
 762         {\r
 763             if (this.RectSelection || this.SelectionLength == 0)\r
 764                 return;\r
 765             int selectionStart = this.SelectionStart;\r
 766             string text = this.InsertLineHead(GetTextFromLineSelectArea(this.View.Selections), "\t");\r
 767             this.RepleaceSelectionArea(this.View.Selections,text);\r
 768             this.Select(selectionStart, text.Length);\r
 769         }\r
 770 \r
 771         /// <summary>\r
 772         /// 選択文字列のインデントを一つ減らす\r
 773         /// </summary>\r
 774         public void DownIndent()\r
 775         {\r
 776             if (this.RectSelection || this.SelectionLength == 0)\r
 777                 return;\r
 778             int selectionStart = this.SelectionStart;\r
 779             string text = this.RemoveLineHead(GetTextFromLineSelectArea(this.View.Selections), "\t");\r
 780             this.RepleaceSelectionArea(this.View.Selections, text);\r
 781             this.Select(selectionStart, text.Length);\r
 782         }\r
 783 \r
 784         string InsertLineHead(string s, string str)\r
 785         {\r
 786             string[] lines = s.Split(new string[] { Document.NewLine.ToString() }, StringSplitOptions.RemoveEmptyEntries);\r
 787             StringBuilder output = new StringBuilder();\r
 788             for (int i = 0; i < lines.Length; i++)\r
 789                 output.Append(str + lines[i] + Document.NewLine);\r
 790             return output.ToString();\r
 791         }\r
 792 \r
 793         public string RemoveLineHead(string s, string str)\r
 794         {\r
 795             string[] lines = s.Split(new string[] { Document.NewLine.ToString() }, StringSplitOptions.RemoveEmptyEntries);\r
 796             StringBuilder output = new StringBuilder();\r
 797             for (int i = 0; i < lines.Length; i++)\r
 798                 if (lines[i].StartsWith(str))\r
 799                     output.Append(lines[i].Substring(1) + Document.NewLine);\r
 800                 else\r
 801                     output.Append(lines[i] + Document.NewLine);\r
 802             return output.ToString();\r
 803         }\r
 804 \r
 805         /// <summary>\r
 806         /// キャレットを一文字移動させる\r
 807         /// </summary>\r
 808         /// <param name="isMoveNext">真なら１文字すすめ、そうでなければ戻す</param>\r
 809         /// <remarks>このメソッドを呼び出した後でScrollToCaretメソッドとSelectWithMoveCaretメソッドを呼び出す必要があります</remarks>\r
 810         void MoveCaretHorizontical(bool isMoveNext)\r
 811         {\r
 812             if (this.Document.FireUpdateEvent == false)\r
 813                 throw new InvalidOperationException("");\r
 814             int delta = isMoveNext ? 0 : -1;\r
 815             int prevcol = this.View.CaretPostion.col;\r
 816             int col = this.View.CaretPostion.col + delta;\r
 817             string lineString = this.View.LayoutLines[this.View.CaretPostion.row];\r
 818             if (col < 0 || this.View.CaretPostion.row >= this.View.LayoutLines.Count)\r
 819             {\r
 820                 if (this.View.CaretPostion.row == 0)\r
 821                 {\r
 822                     col = 0;\r
 823                     return;\r
 824                 }\r
 825                 this.MoveCaretVertical(false);\r
 826                 this.View.AdjustCaretAndSrc(AdjustFlow.Row);  //この段階で調整しないとスクロールされない\r
 827                 col = this.View.LayoutLines.GetLengthFromLineNumber(this.View.CaretPostion.row) - 1;  //最終行以外はすべて改行コードが付くはず\r
 828             }\r
 829             else if (col >= lineString.Length || lineString[col] == Document.NewLine)\r
 830             {\r
 831                 if (this.View.CaretPostion.row < this.View.LayoutLines.Count - 1)\r
 832                 {\r
 833                     this.MoveCaretVertical(true);\r
 834                     this.View.AdjustCaretAndSrc(AdjustFlow.Row);  //この段階で調整しないとスクロールされない\r
 835                     col = 0;\r
 836                 }\r
 837             }\r
 838             else\r
 839             {\r
 840                 AlignDirection direction = isMoveNext ? AlignDirection.Forward : AlignDirection.Back;\r
 841                 col = this.View.LayoutLines.GetLayout(this.View.CaretPostion.row).AlignIndexToNearestCluster(col, direction);\r
 842             }\r
 843 \r
 844             this.View.JumpCaret(this.View.CaretPostion.row, col,false);\r
 845         }\r
 846 \r
 847         /// <summary>\r
 848         /// キャレットを行方向に移動させる\r
 849         /// </summary>\r
 850         /// <param name="isMoveNext">プラス方向に移動するなら真</param>\r
 851         /// <remarks>このメソッドを呼び出した後でScrollToCaretメソッドとSelectWithMoveCaretメソッドを呼び出す必要があります</remarks>\r
 852         void MoveCaretVertical(bool isMoveNext)\r
 853         {\r
 854             if (this.Document.FireUpdateEvent == false)\r
 855                 throw new InvalidOperationException("");\r
 856 \r
 857             TextPoint nextPoint = this.GetTextPointAfterMoveLine(isMoveNext ? 1 : -1, this.View.CaretPostion);\r
 858             \r
 859             this.View.JumpCaret(nextPoint.row, nextPoint.col,false);\r
 860         }\r
 861 \r
 862         private void ReplaceBeforeSelectionArea(SelectCollection Selections, int removeLength, string insertStr)\r
 863         {\r
 864             if (removeLength == 0 && insertStr.Length == 0)\r
 865                 return;\r
 866 \r
 867             if (this.RectSelection == false || this.Document.FireUpdateEvent == false)\r
 868                 throw new InvalidOperationException();\r
 869 \r
 870             SelectCollection temp = this.View.InsertPoint;\r
 871             int selectStart = temp.First().start;\r
 872             int selectEnd = temp.Last().start + temp.Last().length;\r
 873 \r
 874             //ドキュメント操作後に行うとうまくいかないので、あらかじめ取得しておく\r
 875             TextPoint start = this.View.LayoutLines.GetTextPointFromIndex(selectStart);\r
 876             TextPoint end = this.View.LayoutLines.GetTextPointFromIndex(selectEnd);\r
 877 \r
 878             bool reverse = temp.First().start > temp.Last().start;\r
 879 \r
 880             int lineHeadIndex = this.View.LayoutLines.GetIndexFromLineNumber(this.View.LayoutLines.GetLineNumberFromIndex(selectStart));\r
 881             if (selectStart - removeLength < lineHeadIndex)\r
 882                 return;\r
 883 \r
 884             this.Document.UndoManager.BeginUndoGroup();\r
 885             this.Document.FireUpdateEvent = false;\r
 886 \r
 887             if (reverse)\r
 888             {\r
 889                 for (int i = 0; i < temp.Count; i++)\r
 890                 {\r
 891                     this.ReplaceBeforeSelection(temp[i], removeLength, insertStr);\r
 892                 }\r
 893             }\r
 894             else\r
 895             {\r
 896                 for (int i = temp.Count - 1; i >= 0; i--)\r
 897                 {\r
 898                     this.ReplaceBeforeSelection(temp[i], removeLength, insertStr);\r
 899                 }\r
 900             }\r
 901 \r
 902             this.Document.FireUpdateEvent = true;\r
 903             this.Document.UndoManager.EndUndoGroup();\r
 904 \r
 905             int delta = insertStr.Length - removeLength;\r
 906             start.col += delta;\r
 907             end.col += delta;\r
 908 \r
 909             if (reverse)\r
 910                 this.JumpCaret(start.row, start.col);\r
 911             else\r
 912                 this.JumpCaret(end.row, end.col);\r
 913             \r
 914             this.Select(start, 0, end.row - start.row);\r
 915         }\r
 916 \r
 917         private void ReplaceBeforeSelection(Selection sel, int removeLength, string insertStr)\r
 918         {\r
 919             sel = Util.NormalizeIMaker<Selection>(sel);\r
 920             this.Document.Replace(sel.start - removeLength, removeLength, insertStr);\r
 921         }\r
 922 \r
 923         private void RepleaceSelectionArea(SelectCollection Selections, string value,bool updateInsertPoint = false)\r
 924         {\r
 925             if (value == null)\r
 926                 return;\r
 927 \r
 928             if (this.RectSelection == false)\r
 929             {\r
 930                 Selection sel = Selection.Create(this.AnchorIndex, 0);\r
 931                 if (Selections.Count > 0)\r
 932                     sel = Util.NormalizeIMaker<Selection>(this.View.Selections.First());\r
 933 \r
 934                 this.Document.Replace(sel.start, sel.length, value);\r
 935                 return;\r
 936             }\r
 937 \r
 938             if (this.Document.FireUpdateEvent == false)\r
 939                 throw new InvalidOperationException("");\r
 940 \r
 941             int StartIndex = this.SelectionStart;\r
 942 \r
 943             SelectCollection newInsertPoint = new SelectCollection();\r
 944 \r
 945             if (this.SelectionLength == 0)\r
 946             {\r
 947                 int i;\r
 948 \r
 949                 this.Document.UndoManager.BeginUndoGroup();\r
 950 \r
 951                 this.Document.FireUpdateEvent = false;\r
 952 \r
 953                 string[] line = value.Split(new string[] { Document.NewLine.ToString() }, StringSplitOptions.RemoveEmptyEntries);\r
 954 \r
 955                 TextPoint Current = this.View.GetLayoutLineFromIndex(this.SelectionStart);\r
 956 \r
 957                 for (i = 0; i < line.Length && Current.row < this.View.LayoutLines.Count; i++, Current.row++)\r
 958                 {\r
 959                     if (Current.col > this.View.LayoutLines[Current.row].Length)\r
 960                         Current.col = this.View.LayoutLines[Current.row].Length;\r
 961                     StartIndex = this.View.GetIndexFromLayoutLine(Current);\r
 962                     this.Document.Replace(StartIndex, 0, line[i]);\r
 963                     StartIndex += line[i].Length;\r
 964                 }\r
 965 \r
 966                 for (; i < line.Length; i++)\r
 967                 {\r
 968                     StartIndex = this.Document.Length;\r
 969                     string str = Document.NewLine + line[i];\r
 970                     this.Document.Replace(StartIndex, 0, str);\r
 971                     StartIndex += str.Length;\r
 972                 }\r
 973 \r
 974                 this.Document.FireUpdateEvent = true;\r
 975 \r
 976                 this.Document.UndoManager.EndUndoGroup();\r
 977             }\r
 978             else\r
 979             {\r
 980                 SelectCollection temp = new SelectCollection(this.View.Selections); //コピーしないとReplaceCommandを呼び出した段階で書き換えられてしまう\r
 981 \r
 982                 this.Document.UndoManager.BeginUndoGroup();\r
 983 \r
 984                 this.Document.FireUpdateEvent = false;\r
 985 \r
 986                 if (temp.First().start < temp.Last().start)\r
 987                 {\r
 988                     for (int i = temp.Count - 1; i >= 0; i--)\r
 989                     {\r
 990                         Selection sel = Util.NormalizeIMaker<Selection>(temp[i]);\r
 991 \r
 992                         StartIndex = sel.start;\r
 993 \r
 994                         this.Document.Replace(sel.start, sel.length, value);\r
 995 \r
 996                         newInsertPoint.Add(Selection.Create(sel.start + (value.Length - sel.length) * i,0));\r
 997                     }\r
 998                 }\r
 999                 else\r
1000                 {\r
1001                     for (int i = 0; i < temp.Count; i++)\r
1002                     {\r
1003                         Selection sel = Util.NormalizeIMaker<Selection>(temp[i]);\r
1004 \r
1005                         StartIndex = sel.start;\r
1006 \r
1007                         this.Document.Replace(sel.start, sel.length, value);\r
1008 \r
1009                         newInsertPoint.Add(Selection.Create(sel.start + (value.Length - sel.length) * i, 0));\r
1010                     }\r
1011                 }\r
1012 \r
1013                 this.Document.FireUpdateEvent = true;\r
1014 \r
1015                 this.Document.UndoManager.EndUndoGroup();\r
1016             }\r
1017             this.JumpCaret(StartIndex);\r
1018             if (updateInsertPoint && newInsertPoint.Count > 0)\r
1019                 this.View.InsertPoint = newInsertPoint;\r
1020         }\r
1021 \r
1022         private string GetTextFromLineSelectArea(SelectCollection Selections)\r
1023         {\r
1024             Selection sel = Util.NormalizeIMaker<Selection>(Selections.First());\r
1025 \r
1026             string str = this.Document.ToString(sel.start, sel.length);\r
1027 \r
1028             return str;\r
1029         }\r
1030 \r
1031         string GetTextFromRectangleSelectArea(SelectCollection Selections)\r
1032         {\r
1033             StringBuilder temp = new StringBuilder();\r
1034             if (Selections.First().start < Selections.Last().start)\r
1035             {\r
1036                 for (int i = 0; i < this.View.Selections.Count; i++)\r
1037                 {\r
1038                     Selection sel = Util.NormalizeIMaker<Selection>(Selections[i]);\r
1039 \r
1040                     string str = this.Document.ToString(sel.start, sel.length);\r
1041                     if (str.IndexOf(Environment.NewLine) == -1)\r
1042                         temp.AppendLine(str);\r
1043                     else\r
1044                         temp.Append(str);\r
1045                 }\r
1046             }\r
1047             else\r
1048             {\r
1049                 for (int i = this.View.Selections.Count - 1; i >= 0; i--)\r
1050                 {\r
1051                     Selection sel = Util.NormalizeIMaker<Selection>(Selections[i]);\r
1052 \r
1053                     string str = this.Document.ToString(sel.start, sel.length).Replace(Document.NewLine.ToString(), Environment.NewLine);\r
1054                     if (str.IndexOf(Environment.NewLine) == -1)\r
1055                         temp.AppendLine(str);\r
1056                     else\r
1057                         temp.Append(str);\r
1058                 }\r
1059             }\r
1060             return temp.ToString();\r
1061         }\r
1062 \r
1063         void View_LineBreakChanged(object sender, EventArgs e)\r
1064         {\r
1065             this.DeSelectAll();\r
1066             this.AdjustCaret();\r
1067         }\r
1068 \r
1069         void View_PageBoundChanged(object sender, EventArgs e)\r
1070         {\r
1071             if (this.View.LineBreak == LineBreakMethod.PageBound && this.View.PageBound.Width - this.View.LineBreakingMarginWidth > 0)\r
1072                 this.View.PerfomLayouts();\r
1073             this.AdjustCaret();\r
1074         }\r
1075 \r
1076         void render_ChangedRenderResource(object sender, ChangedRenderRsourceEventArgs e)\r
1077         {\r
1078             if (e.type == ResourceType.Font)\r
1079             {\r
1080                 if (this.View.LineBreak == LineBreakMethod.PageBound)\r
1081                     this.View.PerfomLayouts();\r
1082                 this.AdjustCaret();\r
1083             }\r
1084             if (e.type == ResourceType.InlineChar)\r
1085             {\r
1086                 int oldLineCountOnScreen = this.View.LineCountOnScreen;\r
1087                 this.View.CalculateLineCountOnScreen();\r
1088                 if(this.View.LineCountOnScreen != oldLineCountOnScreen)\r
1089                     this.AdjustCaret();\r
1090             }\r
1091         }\r
1092 \r
1093         void render_ChangedRightToLeft(object sender, EventArgs e)\r
1094         {\r
1095             this.AdjustCaret();\r
1096         }\r
1097 \r
1098         void Document_Update(object sender, DocumentUpdateEventArgs e)\r
1099         {\r
1100             switch (e.type)\r
1101             {\r
1102                 case UpdateType.Replace:\r
1103                     if(e.startIndex < this.Document.Length && this.Document[e.startIndex] == Document.NewLine)\r
1104                         this.View.CalculateLineCountOnScreen();\r
1105                     this.JumpCaret(e.startIndex + e.insertLength,true);\r
1106                     break;\r
1107                 case UpdateType.Clear:\r
1108                     this.View.TryScroll(0, 0);\r
1109                     break;\r
1110             }\r
1111         }\r
1112     }\r
1113 }\r