void LeftCopy(VisualPointInfo pointInfo, List <EditableRun> output) { if (pointInfo.LineId != currentLineNumber) { throw new NotSupportedException(); } EditableRun tobeCutRun = pointInfo.TextRun; if (tobeCutRun == null) { return; } foreach (EditableRun t in _runs) { if (t != tobeCutRun) { output.Add(t.Clone()); } else { break; } } EditableRun preCutTextRun = tobeCutRun.LeftCopy(pointInfo.RunLocalSelectedIndex); if (preCutTextRun != null) { output.Add(preCutTextRun); } }
internal EditableVisualPointInfo Split(EditableVisualPointInfo pointInfo) { if (pointInfo.LineId != currentLineNumber) { throw new NotSupportedException(); } EditableRun tobeCutRun = (EditableRun)pointInfo.TextRun; if (tobeCutRun == null) { return(CreateTextPointInfo( pointInfo.LineId, pointInfo.LineCharIndex, pointInfo.X, null, pointInfo.TextRunCharOffset, pointInfo.TextRunPixelOffset)); } this.LocalSuspendLineReArrange(); EditableVisualPointInfo result = null; EditableRun preCutTextRun = (EditableRun)tobeCutRun.LeftCopy(pointInfo.RunLocalSelectedIndex); EditableRun postCutTextRun = (EditableRun)tobeCutRun.Copy(pointInfo.RunLocalSelectedIndex); if (preCutTextRun != null) { this.AddBefore(tobeCutRun, preCutTextRun); if (postCutTextRun != null) { this.AddAfter(tobeCutRun, postCutTextRun); } result = CreateTextPointInfo( pointInfo.LineId, pointInfo.LineCharIndex, pointInfo.X, preCutTextRun, pointInfo.TextRunCharOffset, pointInfo.TextRunPixelOffset); } else { if (postCutTextRun != null) { this.AddAfter(tobeCutRun, postCutTextRun); } EditableRun infoTextRun = null; if (IsSingleLine) { if (tobeCutRun.PrevTextRun != null) { infoTextRun = tobeCutRun.PrevTextRun; } else { infoTextRun = tobeCutRun.NextTextRun; } } else { if (IsFirstLine) { if (tobeCutRun.PrevTextRun != null) { infoTextRun = tobeCutRun.PrevTextRun; } else { if (tobeCutRun.NextTextRun.IsLineBreak) { infoTextRun = null; } else { infoTextRun = tobeCutRun.NextTextRun; } } } else if (IsLastLine) { if (tobeCutRun.PrevTextRun != null) { if (tobeCutRun.PrevTextRun.IsLineBreak) { if (tobeCutRun.NextTextRun != null) { infoTextRun = tobeCutRun.NextTextRun; } else { infoTextRun = null; } } else { infoTextRun = tobeCutRun.PrevTextRun; } } else { } } else { if (!tobeCutRun.NextTextRun.IsLineBreak) { infoTextRun = tobeCutRun.NextTextRun; } else { infoTextRun = null; } } } result = CreateTextPointInfo( pointInfo.LineId, pointInfo.LineCharIndex, pointInfo.X, infoTextRun, pointInfo.TextRunCharOffset, pointInfo.TextRunPixelOffset); } this.Remove(tobeCutRun); this.LocalResumeLineReArrange(); return(result); }
internal EditableVisualPointInfo[] Split(VisualSelectionRange selectionRange) { selectionRange.SwapIfUnOrder(); EditableVisualPointInfo startPoint = selectionRange.StartPoint; EditableVisualPointInfo endPoint = selectionRange.EndPoint; if (startPoint.TextRun == endPoint.TextRun) { EditableRun toBeCutTextRun = startPoint.TextRun; EditableRun preCutTextRun = (EditableRun)toBeCutTextRun.LeftCopy(startPoint.RunLocalSelectedIndex); EditableRun middleCutTextRun = (EditableRun)toBeCutTextRun.Copy(startPoint.RunLocalSelectedIndex + 1, endPoint.LineCharIndex - startPoint.LineCharIndex); EditableRun postCutTextRun = (EditableRun)toBeCutTextRun.Copy(endPoint.RunLocalSelectedIndex + 1); EditableVisualPointInfo newStartRangePointInfo = null; EditableVisualPointInfo newEndRangePointInfo = null; EditableTextLine line = this; if (startPoint.LineId != currentLineNumber) { line = editableFlowLayer.GetTextLine(startPoint.LineId); } line.LocalSuspendLineReArrange(); if (preCutTextRun != null) { line.AddBefore(toBeCutTextRun, preCutTextRun); newStartRangePointInfo = CreateTextPointInfo( startPoint.LineId, startPoint.LineCharIndex, startPoint.X, preCutTextRun, startPoint.TextRunCharOffset, startPoint.TextRunPixelOffset); } else { EditableRun prevTxtRun = GetPrevTextRun((EditableRun)startPoint.TextRun); if (prevTxtRun != null) { newStartRangePointInfo = CreateTextPointInfo( startPoint.LineId, startPoint.LineCharIndex, startPoint.X, prevTxtRun, startPoint.TextRunCharOffset - preCutTextRun.CharacterCount, startPoint.TextRunPixelOffset - prevTxtRun.Width); } else { newStartRangePointInfo = CreateTextPointInfo( startPoint.LineId, startPoint.LineCharIndex, 0, null, 0, 0); } } if (postCutTextRun != null) { line.AddAfter(toBeCutTextRun, postCutTextRun); newEndRangePointInfo = CreateTextPointInfo( endPoint.LineId, endPoint.LineCharIndex, endPoint.X, middleCutTextRun, startPoint.TextRunCharOffset + middleCutTextRun.CharacterCount, startPoint.TextRunPixelOffset + middleCutTextRun.Width); } else { EditableRun nextTxtRun = GetNextTextRun((EditableRun)endPoint.TextRun); if (nextTxtRun != null) { newEndRangePointInfo = CreateTextPointInfo( endPoint.LineId, endPoint.LineCharIndex, endPoint.X, nextTxtRun, endPoint.TextRunPixelOffset + endPoint.TextRun.CharacterCount, endPoint.TextRunPixelOffset + endPoint.TextRun.Width); } else { newEndRangePointInfo = CreateTextPointInfo( endPoint.LineId, endPoint.LineCharIndex, endPoint.X, middleCutTextRun, endPoint.TextRunCharOffset, endPoint.TextRunPixelOffset); } } if (middleCutTextRun != null) { line.AddAfter(toBeCutTextRun, middleCutTextRun); } else { throw new NotSupportedException(); } line.Remove(toBeCutTextRun); line.LocalResumeLineReArrange(); return(new EditableVisualPointInfo[] { newStartRangePointInfo, newEndRangePointInfo }); } else { EditableTextLine workingLine = this; if (startPoint.LineId != currentLineNumber) { workingLine = editableFlowLayer.GetTextLine(startPoint.LineId); } EditableVisualPointInfo newStartPoint = workingLine.Split(startPoint); workingLine = this; if (endPoint.LineId != currentLineNumber) { workingLine = editableFlowLayer.GetTextLine(endPoint.LineId); } EditableVisualPointInfo newEndPoint = workingLine.Split(endPoint); return(new EditableVisualPointInfo[] { newStartPoint, newEndPoint }); } }