/// <summary>
/// 将传入的成员链末尾与该行首成员进行连接，超出的
/// 尾部链自动向下一行遍历连接
/// </summary>
public void WriteHead(DRowMember linkedListHead)
{
if (linkedListHead == null) return;
linkedListHead.RecursiveChangeDocRow(this);
linkedListHead.PreMember = null;
var lastMember = linkedListHead.GetTailMember();
lastMember.NextMember = this.FirstMember;
if (this.FirstMember != null)
{
this.FirstMember.PreMember = lastMember;
}
//定义两个活动指针
var leftPointer = lastMember;
var rightPointer = this.FirstMember;
DRowMember oLinkedListHeader = null;
this.FirstMember = linkedListHead;
var isOutRange = false;
while (true)
{
leftPointer.AfterChangeRow();
if (rightPointer == null) break;
//此处断链子
if (GetRangeResult(rightPointer) == 1)
{
if (Paragraph == RowParagraph.Right || Paragraph == RowParagraph.Middle)
{
rightPointer = GetOutRangeMember();
leftPointer = rightPointer.PreMember;
}
leftPointer.NextMember = null;
rightPointer.PreMember = null;
oLinkedListHeader = rightPointer;
IsContinue = true;
isOutRange = true;
break;
}
else if (GetRangeResult(rightPointer) == 0)
{
IsContinue = true;
}
else
{
IsContinue = false;
}
leftPointer.IsBreakTail = false;
leftPointer = rightPointer;
rightPointer = rightPointer.NextMember;
}
this.LastMember = leftPointer.Equals(linkedListHead) ? null : leftPointer;
//如果该行未越界则返回
if (!isOutRange) return;
if (NextDocRow == null)
{
NextDocRow = OwnerDocument.CreateRow();
NextDocRow.WriteHead(oLinkedListHeader);
}
else if (oLinkedListHeader.GetTailMember().IsBreakTail)
{
NextDocRow = OwnerDocument.InsertRowBefore(NextDocRow);
NextDocRow.WriteHead(oLinkedListHeader);
}
else
{
NextDocRow.WriteHead(oLinkedListHeader);
}
}
/// <summary>
/// 将传入的成员链头与该行末成员进行连接，超出的
/// 尾部链自动向下一行遍历连接
/// </summary>
public void WriteTail(DRowMember linkedListHead)
{
if (linkedListHead == null) return;
linkedListHead.RecursiveChangeDocRow(this);
linkedListHead.PreMember = this.LastMember;
this.LastMember.NextMember = linkedListHead;
//定义两个活动指针
var leftPointer = this.LastMember;
var rightPointer = linkedListHead;
DRowMember oLinkedListHeader = null;
var isOutRange = false;
while (true)
{
//此处断链子
if (GetRangeResult(rightPointer) == 1)
{
rightPointer.GetTailMember().IsBreakTail = leftPointer.IsBreakTail;
leftPointer.IsBreakTail = false;
leftPointer.NextMember = null;
rightPointer.PreMember = null;
oLinkedListHeader = rightPointer;
IsContinue = true;
isOutRange = true;
break;
}
else if (GetRangeResult(rightPointer) == 0)
{
IsContinue = true;
}
else
{
IsContinue = false;
}
rightPointer.AfterChangeRow();
//断点属性传递
rightPointer.IsBreakTail = leftPointer.IsBreakTail;
leftPointer.IsBreakTail = false;
leftPointer = rightPointer;
rightPointer = rightPointer.NextMember;
if (rightPointer == null) break;
}
this.LastMember = leftPointer;
//如果该行未越界则返回
if (!isOutRange) return;
if (NextDocRow == null)
{
NextDocRow = OwnerDocument.CreateRow();
NextDocRow.WriteHead(oLinkedListHeader);
}
else if (oLinkedListHeader.GetTailMember().IsBreakTail)
{
NextDocRow = OwnerDocument.InsertRowBefore(NextDocRow);
NextDocRow.WriteHead(oLinkedListHeader);
}
else
{
NextDocRow.WriteHead(oLinkedListHeader);
}
}
/// <summary>
/// 从指定成员开始重新排版
/// </summary>
public void ReComposing(DRowMember member)
{
if (member == null) return;
var leftPointer = member;
var rightPointer = member.NextMember;
DRowMember linkedListHead = null;
while (true)
{
if (rightPointer == null) break;
//超出界限
if (rightPointer.X + rightPointer.Width > this.X + this.Width)
{
leftPointer.NextMember = null;
rightPointer.PreMember = null;
linkedListHead = rightPointer;
LastMember = leftPointer;
IsContinue = true;
}
leftPointer = rightPointer;
rightPointer = rightPointer.NextMember;
}
if (linkedListHead == null) return;
if (NextDocRow == null)
{
NextDocRow = OwnerDocument.CreateRow();
NextDocRow.WriteHead(linkedListHead);
}
else if (linkedListHead.GetTailMember().IsBreakTail)
{
NextDocRow = OwnerDocument.InsertRowBefore(NextDocRow);
NextDocRow.WriteHead(linkedListHead);
}
else
{
NextDocRow.WriteHead(linkedListHead);
}
}