2 * Copyright (C) 2013 FooProject
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
4 * the Free Software Foundation; either version 3 of the License, or (at your option) any later version.
6 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
7 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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/>.
13 using System.Collections.Generic;
15 namespace FooEditEngine
24 enum TextPointSearchRange
31 /// キャレットとドキュメントの表示を担当します。レイアウト関連もこちらで行います
33 sealed class EditView : ViewBase
36 internal const float LineMarkerThickness = 2;
39 internal const int LineNumberLength = 6;
40 const int UpdateAreaPaddingWidth = 2;
41 const int UpdateAreaWidth = 4;
42 const int UpdateAreaTotalWidth = UpdateAreaWidth + UpdateAreaPaddingWidth;
47 public EditView(Document doc, IEditorRender r, int MarginLeftAndRight = 5)
48 : this(doc, r, new Padding(MarginLeftAndRight, 0, MarginLeftAndRight, 0))
55 /// <param name="doc">ドキュメント</param>
56 /// <param name="r">レンダー</param>
57 /// <param name="margin">マージン(1番目:左、2番目:上、3番目:右、4番目:下)</param>
58 public EditView(Document doc, IEditorRender r, Padding margin)
59 : base(doc, r, margin)
61 this.CaretBlinkTime = 500;
62 this.CaretWidthOnInsertMode = 1;
63 this.CalculateClipRect();
64 this.CaretLocation = new Point(this.render.TextArea.X, this.render.TextArea.Y);
65 this.LayoutLines.FoldingCollection.StatusChanged += FoldingCollection_StatusChanged;
66 this.IsFocused = false;
72 internal SelectCollection Selections
74 get { return this.Document.Selections; }
75 set { this.Document.Selections = value; }
79 /// ラインマーカーを描くなら偽。そうでなければ真
81 public bool HideLineMarker
83 get { return this.Document.HideLineMarker; }
84 set { this.Document.HideLineMarker = value; }
88 /// キャレットを描くなら偽。そうでなければ真
92 get { return this.Document.HideCaret; }
93 set { this.Document.HideCaret = value; }
97 /// 挿入モードなら真を返し、上書きモードなら偽を返す
99 public bool InsertMode
101 get { return this.Document.InsertMode; }
102 set { this.Document.InsertMode = value; }
108 public int CaretBlinkTime
117 public double CaretWidthOnInsertMode
124 /// フォーカスがあるなら真をセットする
126 public bool IsFocused
133 /// キャレットを点滅させるなら真。そうでないなら偽
135 /// <remarks>キャレット点滅タイマーもリセットされます</remarks>
136 public bool CaretBlink
138 get { return this._CaretBlink; }
141 this._CaretBlink = value;
143 this.tickCount = DateTime.Now.Ticks + this.To100nsTime(this.CaretBlinkTime);
148 /// 一ページの高さに収まる行数を返す(こちらは表示されていない行も含みます)
150 public int LineCountOnScreenWithInVisible
159 public double ScrollMarginWidth
161 get { return this.PageBound.Width * 20 / 100; }
167 public Point CaretLocation
176 /// <param name="x">x座標</param>
177 /// <param name="y">y座標</param>
178 /// <returns>テキストエリア内にあれば真。そうでなければ偽</returns>
179 public bool HitTextArea(double x, double y)
181 if (x >= this.render.TextArea.X && x <= this.render.TextArea.Right &&
182 y >= this.render.TextArea.Y && y <= this.render.TextArea.Bottom)
188 public bool IsUpperTextArea(double x, double y)
190 if (x >= this.render.TextArea.X && x <= this.render.TextArea.Right && y < this.render.TextArea.Y)
196 public bool IsUnderTextArea(double x,double y)
198 if (x >= this.render.TextArea.X && x <= this.render.TextArea.Right && y > this.render.TextArea.Bottom)
207 /// <param name="x">x座標</param>
208 /// <param name="row">行</param>
209 /// <returns>ヒットした場合はFoldingDataオブジェクトが返され、そうでない場合はnullが返る</returns>
210 public FoldingItem HitFoldingData(double x, int row)
212 IEditorRender render = (IEditorRender)base.render;
214 if (x >= this.GetRealtiveX(AreaType.FoldingArea) && x <= this.GetRealtiveX(AreaType.FoldingArea) + render.FoldingWidth)
216 int lineHeadIndex = this.LayoutLines.GetIndexFromLineNumber(row);
217 int lineLength = this.LayoutLines.GetLengthFromLineNumber(row);
218 FoldingItem foldingData = this.LayoutLines.FoldingCollection.Get(lineHeadIndex, lineLength);
219 if (foldingData != null && foldingData.IsFirstLine(this.LayoutLines,row))
226 /// Rectで指定された範囲にドキュメントを描く
228 /// <param name="updateRect">描写する範囲</param>
229 /// <param name="force">キャッシュした内容を使用しない場合は真を指定する</param>
230 /// <remarks>描写する範囲がPageBoundより小さい場合、キャッシュされた内容を使用することがあります。なお、レタリング後にrender.CacheContent()を呼び出さなかった場合は更新範囲にかかわらずキャッシュを使用しません</remarks>
231 public override void Draw(Rectangle updateRect,bool force = false)
233 if (this.LayoutLines.Count == 0)
236 IEditorRender render = (IEditorRender)base.render;
238 if ((updateRect.Height < this.PageBound.Height ||
239 updateRect.Width < this.PageBound.Width) &&
240 render.IsVaildCache() &&
243 render.DrawCachedBitmap(updateRect);
247 Rectangle background = this.PageBound;
248 render.FillBackground(background);
250 if (this.Document.HideRuler == false)
253 this.DrawLineMarker(this.Document.CaretPostion.row);
255 Point pos = this.render.TextArea.TopLeft;
257 pos.Y += this.Src.OffsetY;
259 double endposy = this.render.TextArea.Bottom;
260 Size lineNumberSize = new Size(this.render.LineNemberWidth, this.render.TextArea.Height);
262 this.render.BeginClipRect(new Rectangle(this.PageBound.X, this.render.TextArea.Y, this.PageBound.Width, this.render.TextArea.Height));
264 //パフォーマンス向上のため行番号などを先に描く
265 for (int i = this.Src.Row; i < this.LayoutLines.Count; i++)
267 int lineIndex = this.LayoutLines.GetIndexFromLineNumber(i);
268 int lineLength = this.LayoutLines.GetLengthFromLineNumber(i);
269 ITextLayout layout = this.LayoutLines.GetLayout(i);
274 FoldingItem foldingData = this.LayoutLines.FoldingCollection.Get(lineIndex, lineLength);
276 if (foldingData != null)
278 if (this.LayoutLines.FoldingCollection.IsHidden(lineIndex))
280 if (foldingData.IsFirstLine(this.LayoutLines, i))
281 render.DrawFoldingMark(foldingData.Expand, this.PageBound.X + this.GetRealtiveX(AreaType.FoldingArea), pos.Y);
284 if (this.Document.DrawLineNumber)
286 this.render.DrawString((i + 1).ToString(), this.PageBound.X + this.GetRealtiveX(AreaType.LineNumberArea), pos.Y, StringAlignment.Right, lineNumberSize,StringColorType.LineNumber);
289 DrawUpdateArea(i, pos.Y);
291 pos.Y += layout.Height;
292 //pos.Y += this.render.emSize.Height;
295 this.render.EndClipRect();
298 pos = this.render.TextArea.TopLeft;
300 pos.Y += this.Src.OffsetY;
302 this.render.BeginClipRect(this.render.TextArea);
304 for (int i = this.Src.Row; i < this.LayoutLines.Count; i++)
306 int lineIndex = this.LayoutLines.GetIndexFromLineNumber(i);
307 int lineLength = this.LayoutLines.GetLengthFromLineNumber(i);
308 ITextLayout layout = this.LayoutLines.GetLayout(i);
313 FoldingItem foldingData = this.LayoutLines.FoldingCollection.Get(lineIndex, lineLength);
315 if (foldingData != null)
317 if (this.LayoutLines.FoldingCollection.IsHidden(lineIndex))
321 this.render.DrawOneLine(this.Document, this.LayoutLines, i, pos.X, pos.Y);
323 pos.Y += layout.Height;
326 this.render.EndClipRect();
328 this.DrawInsertPoint();
330 this.Document.SelectGrippers.BottomLeft.Draw(this.render);
331 this.Document.SelectGrippers.BottomRight.Draw(this.render);
333 render.CacheContent();
339 void DrawUpdateArea(int row,double ypos)
341 IEditorRender render = (IEditorRender)base.render;
342 if(this.LayoutLines.GetDirtyFlag(row))
344 Point pos = new Point(this.PageBound.X + this.GetRealtiveX(AreaType.UpdateArea), ypos);
345 Rectangle rect = new Rectangle(pos.X, pos.Y, UpdateAreaWidth, this.LayoutLines.GetLayout(row).Height);
346 render.FillRectangle(rect, FillRectType.UpdateArea);
352 IEditorRender render = (IEditorRender)base.render;
355 Size emSize = render.emSize;
356 Rectangle clipRect = this.render.TextArea;
358 double markerHeight = emSize.Height / 2;
359 if (this.Document.RightToLeft)
361 pos = new Point(clipRect.TopRight.X, clipRect.TopRight.Y - emSize.Height - LineMarkerThickness);
362 for (; pos.X >= clipRect.TopLeft.X; pos.X -= emSize.Width, count++)
365 to = new Point(pos.X, pos.Y + emSize.Height);
366 int mod = count % 10;
369 string countStr = (count / 10).ToString();
370 double counterWidth = emSize.Width * countStr.Length;
371 this.render.DrawString(countStr, pos.X - counterWidth, pos.Y, StringAlignment.Right, new Size(counterWidth, double.MaxValue));
374 from.Y = from.Y + emSize.Height / 2;
376 from.Y = from.Y + emSize.Height * 3 / 4;
377 render.DrawLine(from, to);
378 if (this.CaretLocation.X >= pos.X && this.CaretLocation.X < pos.X + emSize.Width)
379 render.FillRectangle(new Rectangle(pos.X, pos.Y + markerHeight, emSize.Width, markerHeight), FillRectType.OverwriteCaret);
384 pos = new Point(clipRect.TopLeft.X, clipRect.TopLeft.Y - emSize.Height - LineMarkerThickness);
385 for (; pos.X < clipRect.TopRight.X; pos.X += emSize.Width, count++)
388 to = new Point(pos.X, pos.Y + emSize.Height);
389 int mod = count % 10;
391 this.render.DrawString((count / 10).ToString(), pos.X, pos.Y, StringAlignment.Left, new Size(double.MaxValue, double.MaxValue));
393 from.Y = from.Y + emSize.Height / 2;
395 from.Y = from.Y + emSize.Height * 3 / 4;
396 render.DrawLine(from, to);
397 if (this.CaretLocation.X >= pos.X && this.CaretLocation.X < pos.X + emSize.Width)
398 render.FillRectangle(new Rectangle(pos.X, pos.Y + markerHeight, emSize.Width, markerHeight), FillRectType.OverwriteCaret);
401 from = clipRect.TopLeft;
402 from.Y -= LineMarkerThickness;
403 to = clipRect.TopRight;
404 to.Y -= LineMarkerThickness;
405 render.DrawLine(from, to);
408 void DrawInsertPoint()
410 //一つしかない場合は行選択の可能性がある
411 if (this.Selections.Count <= 1)
413 IEditorRender render = (IEditorRender)base.render;
414 foreach (Selection sel in this.Selections)
418 TextPoint tp = this.GetLayoutLineFromIndex(sel.start);
419 Point left = this.GetPostionFromTextPoint(tp);
420 double lineHeight = render.emSize.Height;
421 Rectangle InsertRect = new Rectangle(left.X,
423 CaretWidthOnInsertMode,
425 render.FillRectangle(InsertRect, FillRectType.InsertPoint);
432 if (this.HideCaret || !this.IsFocused)
435 long diff = DateTime.Now.Ticks - this.tickCount;
436 long blinkTime = this.To100nsTime(this.CaretBlinkTime);
438 if (this.CaretBlink && diff % blinkTime >= blinkTime / 2)
441 Rectangle CaretRect = new Rectangle();
443 IEditorRender render = (IEditorRender)base.render;
445 int row = this.Document.CaretPostion.row;
446 ITextLayout layout = this.LayoutLines.GetLayout(row);
447 double lineHeight = render.emSize.Height;
448 double charWidth = layout.GetWidthFromIndex(this.Document.CaretPostion.col);
450 if (this.InsertMode || charWidth == 0)
452 CaretRect.Size = new Size(CaretWidthOnInsertMode, lineHeight);
453 CaretRect.Location = new Point(this.CaretLocation.X, this.CaretLocation.Y);
454 render.FillRectangle(CaretRect, FillRectType.InsertCaret);
458 double height = lineHeight / 3;
459 CaretRect.Size = new Size(charWidth, height);
460 CaretRect.Location = new Point(this.CaretLocation.X, this.CaretLocation.Y + lineHeight - height);
461 render.FillRectangle(CaretRect, FillRectType.OverwriteCaret);
466 long To100nsTime(int ms)
471 public void DrawLineMarker(int row)
473 if (this.HideLineMarker || !this.IsFocused)
475 IEditorRender render = (IEditorRender)base.render;
476 Point p = this.CaretLocation;
477 double height = this.LayoutLines.GetLayout(this.Document.CaretPostion.row).Height;
478 double width = this.render.TextArea.Width;
479 render.FillRectangle(new Rectangle(this.PageBound.X + this.render.TextArea.X, this.CaretLocation.Y, width, height), FillRectType.LineMarker);
485 /// <returns>矩形領域を表すRectangle</returns>
486 public Rectangle GetCurrentCaretRect()
488 ITextLayout layout = this.LayoutLines.GetLayout(this.Document.CaretPostion.row);
489 double width = layout.GetWidthFromIndex(this.Document.CaretPostion.col);
491 width = this.CaretWidthOnInsertMode;
492 double height = layout.Height;
493 Rectangle updateRect = new Rectangle(
494 this.CaretLocation.X,
495 this.CaretLocation.Y,
502 /// 指定した座標の一番近くにあるTextPointを取得する
504 /// <param name="p">テキストエリアを左上とする相対位置</param>
505 /// <param name="searchRange">探索範囲</param>
506 /// <returns>レイアウトラインを指し示すTextPoint</returns>
507 public TextPoint GetTextPointFromPostion(Point p,TextPointSearchRange searchRange = TextPointSearchRange.TextAreaOnly)
509 if(searchRange == TextPointSearchRange.TextAreaOnly)
511 if (p.Y < this.render.TextArea.TopLeft.Y ||
512 p.Y > this.render.TextArea.BottomRight.Y)
513 return TextPoint.Null;
516 TextPoint tp = new TextPoint();
518 if (this.LayoutLines.Count == 0)
521 //表示領域から探索を始めるのでパディングの分だけ引く
522 p.Y -= this.render.TextArea.Y;
525 var t = this.GetNearstRowAndOffsetY(this.Src.Row, p.Y);
526 double relX = 0, relY;
531 tp.row = this.LayoutLines.Count - 1;
532 relY = this.LayoutLines.GetLayout(tp.row).Height - this.render.emSize.Height;
536 tp.row = this.Src.Row;
548 relY = t.Item2; //相対位置がマイナスなので反転させる
551 if (searchRange == TextPointSearchRange.TextAreaOnly)
553 if (p.X < this.render.TextArea.X)
557 relX = p.X - this.render.TextArea.X;
558 tp.col = this.LayoutLines.GetLayout(tp.row).GetIndexFromPostion(relX,relY);
560 int lineLength = this.LayoutLines.GetLengthFromLineNumber(tp.row);
561 if (tp.col > lineLength)
568 /// TextPointに対応する座標を得る
570 /// <param name="tp">レイアウトライン上の位置</param>
571 /// <returns>テキストエリアを左上とする相対位置</returns>
572 public Point GetPostionFromTextPoint(TextPoint tp)
574 Point p = new Point();
575 for (int i = this.Src.Row; i < tp.row; i++)
577 int lineHeadIndex = this.LayoutLines.GetIndexFromLineNumber(i);
578 int lineLength = this.LayoutLines.GetLengthFromLineNumber(i);
579 if (this.LayoutLines.FoldingCollection.IsHidden(lineHeadIndex))
581 p.Y += this.LayoutLines.GetLayout(i).Height;
583 Point relP = this.LayoutLines.GetLayout(tp.row).GetPostionFromIndex(tp.col);
584 p.X += relP.X - Src.X + this.render.TextArea.X;
585 p.Y += this.render.TextArea.Y + relP.Y;
589 public Gripper HitGripperFromPoint(Point p)
591 if (this.Document.SelectGrippers.BottomLeft.IsHit(p))
592 return this.Document.SelectGrippers.BottomLeft;
593 if (this.Document.SelectGrippers.BottomRight.IsHit(p))
594 return this.Document.SelectGrippers.BottomRight;
598 public Rectangle GetRectFromIndex(int index,int width,int height)
600 TextPoint tp = this.LayoutLines.GetTextPointFromIndex(index);
601 return this.GetRectFromTextPoint(tp, width, height);
604 public Rectangle GetRectFromTextPoint(TextPoint tp, int width, int height)
606 if (tp.row < this.Src.Row)
607 return Rectangle.Empty;
608 double radius = width / 2;
609 Point point = this.GetPostionFromTextPoint(tp);
610 double lineHeight = this.render.emSize.Height;
611 double srcOffsetY = this.Src.OffsetY; //画面上ではずれているので引く必要がある
613 Rectangle rect = new Rectangle(point.X - radius, point.Y + lineHeight - srcOffsetY, width, height);
615 if (rect.BottomLeft.Y >= this.render.TextArea.BottomLeft.Y ||
616 rect.BottomRight.X < this.render.TextArea.BottomLeft.X ||
617 rect.BottomLeft.X > this.render.TextArea.BottomRight.X)
618 return Rectangle.Empty;
623 /// キャレットを指定した位置に移動させる
625 /// <param name="row"></param>
626 /// <param name="col"></param>
627 /// <param name="autoExpand">折り畳みを展開するなら真</param>
628 public void JumpCaret(int row, int col, bool autoExpand = true)
632 int lineHeadIndex = this.LayoutLines.GetIndexFromLineNumber(row);
633 int lineLength = this.LayoutLines.GetLengthFromLineNumber(row);
634 FoldingItem foldingData = this.LayoutLines.FoldingCollection.Get(lineHeadIndex, lineLength);
635 if(foldingData != null)
637 if (this.LayoutLines.FoldingCollection.IsParentHidden(foldingData) || !foldingData.IsFirstLine(this.LayoutLines, row))
639 this.LayoutLines.FoldingCollection.Expand(foldingData);
645 this.Document.SetCaretPostionWithoutEvent(new TextPoint(row, col));
649 /// index上の文字が表示されるようにSrcを調整する
651 /// <param name="index">インデックス</param>
652 /// <returns>調整されたら真。そうでなければ偽</returns>
653 public bool AdjustSrc(int index)
655 TextPoint startTextPoint = this.GetLayoutLineFromIndex(index);
656 Point relP = this.LayoutLines.GetLayout(startTextPoint.row).GetPostionFromIndex(startTextPoint.col);
657 if (relP.X < this.Src.X ||
658 relP.X > this.Src.X + this.PageBound.Width)
660 this.TryScroll(relP.X, this.Src.Row);
663 if (startTextPoint.row < this.Src.Row ||
664 startTextPoint.row > this.Src.Row + this.LineCountOnScreenWithInVisible)
666 this.TryScroll(this.Src.X, startTextPoint.row, relP.Y);
673 /// キャレットがあるところまでスクロールする
675 /// <return>再描写する必要があるなら真を返す</return>
676 /// <remarks>Document.Update(type == UpdateType.Clear)イベント時に呼び出した場合、例外が発生します</remarks>
677 public bool AdjustCaretAndSrc(AdjustFlow flow = AdjustFlow.Both)
679 IEditorRender render = (IEditorRender)base.render;
681 if (this.PageBound.Width == 0 || this.PageBound.Height == 0)
683 this.SetCaretPostion(this.Padding.Left + render.FoldingWidth, 0);
688 TextPoint tp = this.Document.CaretPostion;
689 double x = this.CaretLocation.X;
690 double y = this.CaretLocation.Y;
691 Point relPoint = this.LayoutLines.GetLayout(tp.row).GetPostionFromIndex(tp.col);
693 if (flow == AdjustFlow.Col || flow == AdjustFlow.Both)
697 double left = this.Src.X;
698 double right = this.Src.X + this.render.TextArea.Width;
700 if (x >= left && x <= right) //xは表示領域にないにある
704 else if (x > right) //xは表示領域の右側にある
706 this.Document.Src = new SrcPoint(x - this.render.TextArea.Width + this.ScrollMarginWidth,this.Document.Src.Row,this.Document.Src.OffsetY);
707 if (this.Document.RightToLeft && this.Document.Src.X > 0)
709 System.Diagnostics.Debug.Assert(x > 0);
710 this.Document.Src = new SrcPoint(0, this.Document.Src.Row, this.Document.Src.OffsetY);
714 x = this.render.TextArea.Width - this.ScrollMarginWidth;
718 else if (x < left) //xは表示領域の左側にある
720 this.Document.Src = new SrcPoint(x - this.ScrollMarginWidth, this.Document.Src.Row, this.Document.Src.OffsetY);
721 if (!this.Document.RightToLeft && this.Document.Src.X < this.render.TextArea.X)
723 this.Document.Src = new SrcPoint(0, this.Document.Src.Row, this.Document.Src.OffsetY);
727 x = this.ScrollMarginWidth;
731 x += this.render.TextArea.X;
734 if (flow == AdjustFlow.Row || flow == AdjustFlow.Both)
736 int PhyLineCountOnScreen = (int)(this.render.TextArea.Height / this.render.emSize.Height);
738 if (tp.row < this.Src.Row || this.Src.Row + PhyLineCountOnScreen * 2 < tp.row)
739 this.Document.Src = new SrcPoint(this.Src.X, tp.row, -relPoint.Y);
742 double lineHeight = this.render.emSize.Height;
743 double caret_y = this.Src.OffsetY; //src.rowからキャレット位置
744 double alignedHeight = PhyLineCountOnScreen * this.render.emSize.Height;
745 for (int i = this.Src.Row; i < tp.row; i++)
747 int lineHeadIndex = this.LayoutLines.GetIndexFromLineNumber(i);
748 int lineLength = this.LayoutLines.GetLengthFromLineNumber(i);
750 if (this.LayoutLines.FoldingCollection.IsHidden(lineHeadIndex))
752 caret_y += this.LayoutLines.GetLayout(i).Height;
754 caret_y += relPoint.Y;
758 this.Document.Src = new SrcPoint(this.Src.X, tp.row, -relPoint.Y);
761 else if (caret_y >= 0 && caret_y < alignedHeight)
765 else if(caret_y >= alignedHeight)
767 double caretYFromTextArea = Math.Min(caret_y - alignedHeight, alignedHeight - lineHeight);
768 var newsrc = this.GetNearstRowAndOffsetY(tp.row, -caretYFromTextArea);
770 this.Document.Src = new SrcPoint(this.Src.X, tp.row, 0);
772 this.Document.Src = new SrcPoint(this.Src.X, newsrc.Item1, -newsrc.Item2);
773 y = caretYFromTextArea;
775 y += this.render.TextArea.Y;
779 this.SetCaretPostion(x, y);
783 this.OnSrcChanged(null);
790 /// レイアウト行をテキストポイントからインデックスに変換する
792 /// <param name="tp">テキストポイント表す</param>
793 /// <returns>インデックスを返す</returns>
794 public int GetIndexFromLayoutLine(TextPoint tp)
796 return this.LayoutLines.GetIndexFromTextPoint(tp);
800 /// インデックスからレイアウト行を指し示すテキストポイントに変換する
802 /// <param name="index">インデックスを表す</param>
803 /// <returns>テキストポイント返す</returns>
804 public TextPoint GetLayoutLineFromIndex(int index)
806 return this.LayoutLines.GetTextPointFromIndex(index);
812 /// <param name="x"></param>
813 /// <param name="row"></param>
815 /// 範囲外の座標を指定した場合、範囲内に収まるように調整されます
817 public void Scroll(double x, int row)
823 int endRow = this.LayoutLines.Count - 1 - this.LineCountOnScreen;
828 base.TryScroll(x, row);
834 /// <param name="row">行</param>
835 /// <param name="alignTop">指定行を画面上に置くなら真。そうでないなら偽</param>
836 public void ScrollIntoView(int row, bool alignTop)
841 double y = this.render.TextArea.Height;
842 for (int i = row; i >= 0; i--)
844 int lineHeadIndex = this.LayoutLines.GetIndexFromLineNumber(i);
845 int lineLength = this.LayoutLines.GetLengthFromLineNumber(i);
846 double height = this.LayoutLines.GetLayout(i).Height;
851 if (this.LayoutLines.FoldingCollection.IsHidden(lineHeadIndex))
857 public int AdjustRow(int row, bool isMoveNext)
859 if (this.LayoutLines.FoldingStrategy == null)
861 int lineHeadIndex = this.LayoutLines.GetIndexFromLineNumber(row);
862 int lineLength = this.LayoutLines.GetLengthFromLineNumber(row);
863 FoldingItem foldingData = this.LayoutLines.FoldingCollection.GetFarestHiddenFoldingData(lineHeadIndex, lineLength);
864 if (foldingData != null && !foldingData.Expand)
866 if (foldingData.End == this.Document.Length)
868 if (isMoveNext && lineHeadIndex > foldingData.Start)
869 row = this.LayoutLines.GetLineNumberFromIndex(foldingData.End) + 1;
871 row = this.LayoutLines.GetLineNumberFromIndex(foldingData.Start);
872 if(row > this.LayoutLines.Count - 1)
873 row = this.LayoutLines.GetLineNumberFromIndex(foldingData.Start);
878 protected override void CalculateClipRect()
880 IEditorRender render = (IEditorRender)base.render;
881 double x, y, width, height;
883 if (this.Document.DrawLineNumber)
885 if (this.Document.RightToLeft)
886 x = this.Padding.Left;
888 x = this.Padding.Left + UpdateAreaTotalWidth + this.render.LineNemberWidth + this.LineNumberMargin + render.FoldingWidth;
889 width = this.PageBound.Width - this.render.LineNemberWidth - this.LineNumberMargin - this.Padding.Left - this.Padding.Right - render.FoldingWidth - UpdateAreaTotalWidth;
893 if (this.Document.RightToLeft)
894 x = this.Padding.Left;
896 x = this.Padding.Left + UpdateAreaTotalWidth + render.FoldingWidth;
897 width = this.PageBound.Width - this.Padding.Left - this.Padding.Right - render.FoldingWidth - UpdateAreaTotalWidth;
900 y = this.Padding.Top;
901 height = this.PageBound.Height - this.Padding.Top - this.Padding.Bottom;
903 if (this.Document.HideRuler == false)
905 double rulerHeight = this.render.emSize.Height + LineMarkerThickness;
907 height -= rulerHeight;
916 this.render.TextArea = new Rectangle(x, y, width, height);
918 this.LineBreakingMarginWidth = width * 5 / 100;
921 public override void CalculateLineCountOnScreen()
923 if (this.LayoutLines.Count == 0 || this.PageBound.Height == 0)
927 int i = this.Src.Row;
928 int visualCount = this.Src.Row;
931 int row = i < this.LayoutLines.Count ? i : this.LayoutLines.Count - 1;
933 int lineHeadIndex = this.LayoutLines.GetIndexFromLineNumber(row);
934 int lineLength = this.LayoutLines.GetLengthFromLineNumber(row);
936 if (this.LayoutLines.FoldingCollection.IsHidden(lineHeadIndex) && row < this.LayoutLines.Count - 1)
939 ITextLayout layout = this.LayoutLines.GetLayout(row);
941 double width = layout.Width;
943 if (width > this._LongestWidth)
944 this._LongestWidth = width;
946 double lineHeight = layout.Height;
950 if (y >= this.render.TextArea.Height)
954 this.LineCountOnScreen = Math.Max(visualCount - this.Src.Row - 1, 0);
955 this.LineCountOnScreenWithInVisible = Math.Max(i - this.Src.Row - 1, 0);
958 public override void CalculateWhloeViewPort()
960 if(this.Document.LineBreak == LineBreakMethod.None)
962 this._LongestHeight = this.LayoutLines.Count * this.render.emSize.Height;
963 //CalculateLineCountOnScreenで最小幅は計算する
966 double width = 0, height = 0;
967 for(int i = 0; i < this.LayoutLines.Count; i++)
969 int lineHeadIndex = this.LayoutLines.GetIndexFromLineNumber(i);
970 int lineLength = this.LayoutLines.GetLengthFromLineNumber(i);
972 if (this.LayoutLines.FoldingCollection.IsHidden(lineHeadIndex) && i < this.LayoutLines.Count - 1)
975 ITextLayout layout = this.LayoutLines.GetLayout(i);
976 if (width > this._LongestWidth)
977 this._LongestWidth = width;
978 height += layout.Height;
982 void SetCaretPostion(double x, double y)
984 this.CaretLocation = new Point(x + this.PageBound.X, y + this.PageBound.Y);
987 void FoldingCollection_StatusChanged(object sender, FoldingItemStatusChangedEventArgs e)
989 this.CalculateLineCountOnScreen();
1000 double GetRealtiveX(AreaType type)
1002 IEditorRender render = (IEditorRender)base.render;
1005 case AreaType.UpdateArea:
1006 if (this.Document.RightToLeft)
1007 return this.PageBound.TopRight.X - UpdateAreaTotalWidth;
1008 if (this.Document.DrawLineNumber)
1009 return this.render.TextArea.X - this.render.LineNemberWidth - this.LineNumberMargin - render.FoldingWidth - UpdateAreaTotalWidth;
1011 return this.render.TextArea.X - render.FoldingWidth - UpdateAreaTotalWidth;
1012 case AreaType.FoldingArea:
1013 if (this.Document.RightToLeft)
1014 return this.PageBound.TopRight.X - render.FoldingWidth;
1015 if (this.Document.DrawLineNumber)
1016 return this.render.TextArea.X - this.render.LineNemberWidth - this.LineNumberMargin - render.FoldingWidth;
1018 return this.render.TextArea.X - render.FoldingWidth;
1019 case AreaType.LineNumberArea:
1020 if (this.Document.DrawLineNumber == false)
1021 throw new InvalidOperationException();
1022 if (this.Document.RightToLeft)
1023 return this.PageBound.TopRight.X - UpdateAreaTotalWidth - render.FoldingWidth - this.render.LineNemberWidth;
1025 return this.render.TextArea.X - this.render.LineNemberWidth - this.LineNumberMargin;
1026 case AreaType.TextArea:
1027 return this.render.TextArea.X;
1029 throw new ArgumentOutOfRangeException();