public Line NewLine(Line line, bool after)
{
if (_lstLineText != null && _lstLineText.Contains(line))
{
int iIndex = _lstLineText.FindIndex(delegate(Line ln)
{
if (ln == line)
{
return(true);
}
else
{
return(false);
}
});
if (iIndex > -1)
{
Line newLine = new Line(this);
newLine.AddSegment(new LineSegment(SegType.Text, ""));
if (after)
{
_lstLineText.Insert(iIndex + 1, newLine);
}
else
{
_lstLineText.Insert(iIndex, newLine);
}
return(newLine);
}
}
else if ((line == _lineFirst && _lineLast == null) || (line != _lineFirst && _lineLast != null && line == _lineLast))
{
//Line newLine = new Line(this);
if (this.Parent != null)
{
VXmlNode node = this.Parent.AddChildNode();
if (node != null)
{
return(node.FirstLine);
}
}
else
{
VXmlNode nodeRoot = new VXmlNode("", Document);
nodeRoot.Layer = 0;
nodeRoot.CreateTextLine();
Document.NodeRoot = nodeRoot;
return(nodeRoot.FirstLine);
}
}
return(null);
}
public VXmlNode AddChildNode(string name = "")
{
VXmlNode nodeChild = null;
nodeChild = new VXmlNode(name, Document);
nodeChild.Layer = Layer + 1;
nodeChild.Parent = this;
nodeChild.CreateTextLine();
_lstChildNode.Add(nodeChild);
return(nodeChild);
}
/// <summary>
/// 在当前行下插入新行
/// </summary>
public Line InsertLine(Line line, ref int caretCol)
{
Line newLine = null;
if (_lstLineText != null && _lstLineText.Contains(line))
{
newLine = new Line(this);
int index = _lstLineText.IndexOf(line);
_lstLineText.Insert(index + 1, newLine);
}
else if (this is VXmlHeader)
{
if (Document.NodeRoot == null)
{
VXmlNode nodeRoot = new VXmlNode("", Document);
nodeRoot.Layer = 0;
nodeRoot.CreateTextLine();
Document.NodeRoot = nodeRoot;
return(nodeRoot.FirstLine);
}
return(Document.NodeRoot.FirstLine);
}
else if (FirstLine == line)
{
if (_lstLineText == null)
{
newLine = new Line(this);
_lstLineText = new List <Line>();
_lstLineText.Add(newLine);
}
else
{
newLine = new Line(this);
_lstLineText.Insert(0, newLine);
}
}
if (newLine == null)
{
return(newLine);
}
List <LineSegment> segmentList = new List <LineSegment>();
foreach (LineSegment seg in line.Segments)
{
if (seg.SegType == SegType.Space)
{
segmentList.Add(seg);
caretCol += 1;
}
else if (seg.SegType == SegType.Tab)
{
segmentList.Add(seg);
caretCol += 4;
}
else
{
newLine.AddSegment(segmentList);
return(newLine);
}
}
return(newLine);
}