private void Remove(HighlightInfoList list, DomElement element)
{
for (int iCount = list.Count - 1; iCount >= 0; iCount--)
{
HighlightInfo info = list[iCount];
bool delete = false;
if (info.OwnerElement == element)
{
delete = true;
}
else if (info.OwnerElement != null &&
info.OwnerElement.IsParentOrSupParent(element))
{
delete = true;
}
if (delete)
{
if (info.Range != null)
{
this.Document.InvalidateView(info.Range);
}
list.RemoveAt(iCount);
}
}//for
}
/// <summary>
/// 更新高亮度显示区域信息
/// </summary>
internal void UpdateHighlightInfos()
{
_InnerHighlightInfos = null;
if (this.HighlightRanges != null)
{
// 让用户指定的高亮度区域状态无效
foreach (HighlightInfo info in this.HighlightRanges)
{
if (info.Range != null)
{
info.Range.Invalidate();
}
}
}
_HoverHighlightInfo = null;
}
/// <summary>
/// 获得高亮度显示信息对象
/// </summary>
/// <param name="element"></param>
/// <param name="args"></param>
/// <returns></returns>
private HighlightInfo GetHighlightInfo(DomElement element)
{
if (_HighlightBuffer == null)
{
_HighlightBuffer = new HighlightInfoList();
}
else
{
// 在缓存区中逆向搜索
// 由于绘制文档内容都是按照顺序绘制文档内容
for (int iCount = _HighlightBuffer.Count - 1; iCount >= 0; iCount--)
{
if (_HighlightBuffer[iCount].Contains(element))
{
return(_HighlightBuffer[iCount]);
}
}
}
DomContainerElement parent = element.Parent;
while (parent != null)
{
HighlightInfoList infos = parent.GetHighlightInfos();
if (infos != null && infos.Count > 0)
{
foreach (HighlightInfo info in infos)
{
if (info.Contains(element))
{
// 保存在缓存区中
_HighlightBuffer.Add(info);
return(info);
}
}
}
parent = parent.Parent;
}
return(null);
}
