/// <summary>
/// 替换
/// </summary>
/// <param name="args">参数</param>
/// <returns>操作的元素在文档中的序号</returns>
public int Replace(SearchReplaceCommandArgs args)
{
int index = Search(args, true, -1);
if (index >= 0)
{
// 找到内容了，执行替换操作
this.Document.BeginLogUndo();
bool insertModeBack = false;
if (this.Document.EditorControl != null)
{
insertModeBack = this.Document.EditorControl.InsertMode;
this.Document.EditorControl.InsertMode = false;
}
int selectionStart = this.Content.Selection.AbsStartIndex;
if (string.IsNullOrEmpty(args.ReplaceString))
{
this.Document.DocumentControler.Delete();
}
else
{
this.Document.DocumentControler.InsertString(args.ReplaceString);
}
this.Content.SetSelection(selectionStart, args.ReplaceString.Length);
if (this.Document.EditorControl != null)
{
this.Document.EditorControl.InsertMode = insertModeBack;
}
this.Document.EndLogUndo();
}
return(index);
}
/// <summary>
/// 全局替换
/// </summary>
/// <param name="args">参数</param>
/// <returns>替换的次数</returns>
public int ReplaceAll(SearchReplaceCommandArgs args)
{
int result = 0;
List <int> indexs = new List <int>();
SearchReplaceCommandArgs args2 = args.Clone();
args2.Backward = false;
int currentIndex = this.Content.Count - 1;
this.Document.BeginLogUndo();
DocumentControler controler = this.Document.DocumentControler;
Dictionary <DomContentElement, int> startIndexs = new Dictionary <DomContentElement, int>();
while (true)
{
int index = Search(args2, false, currentIndex);
if (index >= 0)
{
DomSelection mySelection = new DomSelection(this.Document.CurrentContentElement);
mySelection.Refresh(index, args.SearchString.Length);
DomContainerElement container = null;
int elementIndex = 0;
this.Content.GetPositonInfo(index, out container, out elementIndex, false);
DomContentElement contentElement = container.ContentElement;
int pi = contentElement.PrivateContent.IndexOf(this.Content[index]);
if (startIndexs.ContainsKey(contentElement))
{
startIndexs[contentElement] = Math.Min(startIndexs[contentElement], pi);
}
else
{
startIndexs[contentElement] = pi;
}
indexs.Add(index);
if (string.IsNullOrEmpty(args.ReplaceString))
{
this.Content.DeleteSelection(true, false, true, mySelection);
}
else
{
DomElementList newElements = this.Document.CreateTextElements(
args.ReplaceString,
(DocumentContentStyle)this.Document.CurrentParagraphStyle,
(DocumentContentStyle)this.Document.EditorCurrentStyle.Clone());
ReplaceElementsArgs args3 = new ReplaceElementsArgs(
container,
index,
0,
newElements,
true,
false,
true);
int repResult = this.Document.ReplaceElements(args3);
}
result++;
}
else
{
break;
}
currentIndex = index + args2.SearchString.Length;
}//while
this.Document.EndLogUndo();
if (startIndexs.Count > 0)
{
bool refreshPage = false;
foreach (DomContentElement ce in startIndexs.Keys)
{
ce.UpdateContentElements(true);
ce.UpdateContentVersion();
ce._NeedRefreshPage = false;
ce.RefreshPrivateContent(startIndexs[ce]);
if (ce._NeedRefreshPage)
{
refreshPage = true;
}
}
if (refreshPage)
{
this.Document.RefreshPages();
if (this.Document.EditorControl != null)
{
this.Document.EditorControl.UpdatePages();
this.Document.EditorControl.UpdateTextCaret();
this.Document.EditorControl.Invalidate();
}
}
}
return(startIndexs.Count);
}
/// <summary>
/// 执行查找
/// </summary>
/// <param name="args">参数</param>
/// <param name="setSelection">找到后是否设置文档选择状态</param>
/// <returns>找到的元素在文档中的序号</returns>
public int Search(SearchReplaceCommandArgs args, bool setSelection, int startIndex)
{
if (args == null)
{
throw new ArgumentNullException("args");
}
if (string.IsNullOrEmpty(args.SearchString))
{
return(-1);
}
DomContent content = this.Content;
int searchStringLength = args.SearchString.Length;
int newStartIndex = -1;
if (args.Backward)
{
// 向后查找
if (startIndex < 0)
{
startIndex = content.Selection.AbsEndIndex;
}
int contentLength = content.Count;
for (int iCount = startIndex; iCount < contentLength; iCount++)
{
DomElement element = content[iCount];
if (element is DomCharElement)
{
char c = ((DomCharElement)element).CharValue;
if (EqualsChar(c, args.SearchString[0], args.IgnoreCase))
{
if (searchStringLength == 1)
{
newStartIndex = iCount;
break;
}
else if (contentLength - iCount >= searchStringLength)
{
for (int iCount2 = 1; iCount2 < searchStringLength; iCount2++)
{
DomElement element2 = content[iCount + iCount2];
if (element2 is DomCharElement)
{
if (EqualsChar(
((DomCharElement)element2).CharValue,
args.SearchString[iCount2],
args.IgnoreCase))
{
if (iCount2 == searchStringLength - 1)
{
newStartIndex = iCount;
goto EndSetNewStartIndex;
}
}
else
{
// 判断失败
break;
}
}
else
{
// 不是字符元素，判断失败
break;
}
} //for
} //else if
}
} //if
} //for
} //if
else
{
// 向前查找
if (startIndex < 0)
{
startIndex = content.Selection.AbsStartIndex;
}
char lastChar = args.SearchString[args.SearchString.Length - 1];
for (int iCount = startIndex; iCount >= 0; iCount--)
{
DomElement element = content[iCount];
if (element is DomCharElement)
{
char c = ((DomCharElement)element).CharValue;
if (EqualsChar(c, lastChar, args.IgnoreCase))
{
if (searchStringLength == 1)
{
newStartIndex = iCount;
break;
}
else if (iCount >= searchStringLength - 1)
{
for (int iCount2 = searchStringLength - 2; iCount2 >= 0; iCount2--)
{
DomElement element2 = content[iCount - searchStringLength + iCount2 + 1];
if (element2 is DomCharElement)
{
if (EqualsChar(
((DomCharElement)element2).CharValue,
args.SearchString[iCount2],
args.IgnoreCase))
{
if (iCount2 == 0)
{
newStartIndex = iCount - searchStringLength + 1;
goto EndSetNewStartIndex;
}
}
else
{
break;
}
}
else
{
break;
}
}
}
}
}
}//for
}
EndSetNewStartIndex :;
if (setSelection)
{
if (newStartIndex >= 0)
{
content.SetSelection(newStartIndex, args.SearchString.Length);
}
}
return(newStartIndex);
}
