/// <summary>
/// 对字符元素进行合并操作
/// </summary>
/// <param name="sourceList">元素列表</param>
/// <returns>合并后的元素列表</returns>
public static DomElementList MergeElements(
DomElementList sourceList,
bool includeSelectionOnly)
{
DomElementList result = new DomElementList();
if (sourceList.Count == 0)
{
return(result);
}
DomStringElement myString = null;
//XTextParagraphList plist = null;
DomDocumentContentElement ce = sourceList[0].DocumentContentElement;
foreach (DomElement element in sourceList)
{
if (includeSelectionOnly)
{
if (element.HasSelection == false)
{
continue;
}
}
if (element is DomCharElement)
{
DomCharElement c = (DomCharElement)element;
if (myString != null && myString.CanMerge(c))
{
myString.Merge(c);
}
else
{
myString = new DomStringElement();
myString.OwnerDocument = c.OwnerDocument;
result.Add(myString);
myString.Merge(c);
}
continue;
}
myString = null;
result.Add(element);
}
return(result);
}
private void Execute(XUndoEventArgs args, bool undo)
{
myDocument.UndoList.RefreshElements.Clear();
myDocument.UndoList._ContentRefreshInfos.Clear();
myDocument.UndoList.ContentChangedContainer.Clear();
myDocument.UndoList.NeedRefreshDocument = false;
if (undo)
{
base.Undo(args);
}
else
{
base.Redo(args);
}
if (myDocument.UndoList.NeedRefreshDocument)
{
// 需要刷新整个文档。
if (this.Document.EditorControl != null)
{
this.Document.EditorControl.RefreshDocument();
return;
}
}
// 指定了要刷新的元素
DomElementList RedrawElements = new DomElementList();
Dictionary <DomContentElement, int> startIndexs
= new Dictionary <DomContentElement, int>();
if (this.Document.UndoList._ContentRefreshInfos.Count > 0)
{
// 直接获得要刷新排版的位置信息
DomDocumentContentElement dce2 = null;
foreach (DomContentElement ce in this.Document.UndoList._ContentRefreshInfos.Keys)
{
dce2 = ce.DocumentContentElement;
ce.UpdateContentElements(false);
startIndexs[ce] = this.Document.UndoList._ContentRefreshInfos[ce];
}
dce2.UpdateContentElements(false);
}//if
if (this.Document.UndoList.RefreshElements.Count > 0)
{
// 获得要刷新排版的位置信息
foreach (DomElement element in this.Document.UndoList.RefreshElements)
{
DomContentElement ce = element.ContentElement;
if (startIndexs.ContainsKey(ce))
{
int index = ce.PrivateContent.IndexOf(element);
if (index >= 0 && index < startIndexs[ce])
{
for (int iCount = startIndexs[ce]; iCount >= index; iCount--)
{
DomElement element2 = ce.PrivateContent[iCount];
if (element2.OwnerLine != null)
{
// 声明文本行无效
element2.OwnerLine.InvalidateState = true;
}
}
startIndexs[ce] = index;
}
}
else
{
ce.UpdateContentElements(true);
int index = ce.PrivateContent.IndexOf(element.FirstContentElement);
if (index >= 0)
{
startIndexs[ce] = index;
}
}
}//foreach
using (System.Drawing.Graphics g = this.Document.CreateGraphics())
{
foreach (DomElement element in this.Document.UndoList.RefreshElements)
{
DomContentElement ce = element.ContentElement;
int index2 = ce.PrivateContent.IndexOf(element.FirstContentElement);
if (index2 >= 0)
{
//element.SizeInvalid = true;
if (element.SizeInvalid || element.ViewInvalid)
{
RedrawElements.Add(element);
}
if (element.SizeInvalid)
{
this.Document.Render.RefreshSize(element, g);
}
//if (StartIndex == int.MinValue || StartIndex > index2)
//{
// StartIndex = index2;
//}
//if (EndIndex == -1 || EndIndex < index2)
//{
// EndIndex = index2;
//}
} //if
} //foreach
} //using
} //if
DomDocumentContentElement dce = this.Document.Body;
foreach (DomContentElement ce in startIndexs.Keys)
{
dce = ce.DocumentContentElement;
//ce.UpdateContentElements();
int index = startIndexs[ce];
if (index > 0)
{
//index--;
}
ce.RefreshPrivateContent(index, -1, true);
}//foreach
if (this.Document.PageRefreshed == false)
{
this.Document.RefreshPages();
if (this.Document.EditorControl != null)
{
this.Document.EditorControl.UpdatePages();
this.Document.EditorControl.Invalidate();
}
}
dce.Content.AutoClearSelection = true;
dce.Content.LineEndFlag = false;
if (undo)
{
dce.SetSelection(intOldSelectionStart, 0);
}
else
{
dce.SetSelection(intNewSelectionStart, 0);
}
//myDocument.Content.MoveSelectStart( intOldSelectionStart );
foreach (DomElement element in RedrawElements)
{
element.ViewInvalid = true;
element.InvalidateView();
}
if (this.Document.UndoList.ContentChangedContainer.Count > 0)
{
// 触发文档内容修改事件
foreach (DomContainerElement container in this.Document.UndoList.ContentChangedContainer)
{
// 触发文档事件
ContentChangedEventArgs args2 = new ContentChangedEventArgs();
args2.UndoRedoCause = true;
args2.Document = this.Document;
args2.Element = container;
container.RaiseBubbleOnContentChanged(args2);
}
this.Document.HighlightManager.UpdateHighlightInfos();
this.Document.OnDocumentContentChanged();
}
if (this.Document.EditorControl != null)
{
this.Document.EditorControl.UpdateTextCaret();
this.Document.EditorControl.Update();
}
}
