public void AddAfter(EditableRun afterVisualElement, EditableRun visualElement) { EditableTextLine targetLine = afterVisualElement.OwnerEditableLine; if (targetLine != null) { targetLine.AddAfter(afterVisualElement, visualElement); } else { throw new NotSupportedException(); } }
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 }); } }