/// <summary>
/// 计算该文本行在文档中的绝对行号
/// </summary>
public int CalcuteRealIndex()
{
int intCount = Index;
ZYTextContainer myElement = Container;
while (myElement != null && myElement.OwnerLine != null)
{
intCount += (myElement.OwnerLine.Index + myElement.LineSpan - 1);
myElement = myElement.Parent;
}
return(intCount);
}
/// <summary>
/// 重载此方法,主要是为了做padding位置的调整.
/// 其它的东西和Contontainer中的一致
/// </summary>
public override void UpdateBounds()
{
int iLineTop = this.paddingTop; //上间距
System.Drawing.Rectangle NewBounds = System.Drawing.Rectangle.Empty;
foreach (ZYTextLine myLine in myLines)
{
myLine.Top = iLineTop;
myLine.RealTop = this.RealTop + iLineTop;
myLine.RealLeft = this.RealLeft + this.paddingLeft; //左间距
if (myLine.LastElement != null && myLine.LastElement.isNewParagraph())
{
myLine.LineSpacing = myOwnerDocument.Info.ParagraphSpacing;
}
else
{
myLine.LineSpacing = myOwnerDocument.Info.LineSpacing;
}
iLineTop += myLine.FullHeight;
foreach (ZYTextElement myElement in myLine.Elements)
{
NewBounds = new System.Drawing.Rectangle
(myElement.RealLeft,
myElement.RealTop,
myElement.Width + myElement.WidthFix,
myElement.Height);
if (NewBounds.Equals(myElement.Bounds) == false)
{
if (myOwnerDocument.OwnerControl != null && !(myElement is ZYTextContainer))
{
if (myElement.Bounds.IsEmpty == false)
{
myOwnerDocument.OwnerControl.AddInvalidateRect(myElement.Bounds);
}
myOwnerDocument.OwnerControl.AddInvalidateRect(NewBounds);
}
myElement.myBounds = NewBounds;
}
if (myElement is ZYTextContainer)
{
ZYTextContainer c = (ZYTextContainer)myElement;
c.UpdateBounds();
}
}
}
}
/// <summary>
/// 已重载:执行撤销操作
/// </summary>
/// <returns></returns>
public override bool Undo()
{
ZYTextElement NewStart = null;
int NewIndex = -1;
bool bolRefreshElements = false;
if (myUndoSteps.Count > 0)
{
for (int iCount = myUndoSteps.Count - 1; iCount >= 0; iCount--)
{
UndoStep myStep = (UndoStep)myUndoSteps[iCount];
switch (myStep.Style)
{
case 0:
Container = myStep.Element.Parent;
bolRefreshElements = true;
NewIndex = myStep.Element.Index;
Container.ChildElements.Remove(myStep.Element);
break;
case 1:
bolRefreshElements = true;
foreach (ZYTextElement e in myStep.Elements)
{
Container = e.Parent;
NewIndex = e.Index;
Container.ChildElements.Remove(e);
}
break;
case 2:
Container = myStep.Element.Parent;
bolRefreshElements = true;
NewIndex = myStep.Element.Index;
Container.ChildElements.Remove(myStep.Element);
break;
case 3:
Container = myStep.Element.Parent;
bolRefreshElements = true;
//先从此处控制，索引小于0的不进行操作edit by ywk 2013年3月11日17:31:02
if (myStep.index >= 0)
{
Container.ChildElements.Insert(myStep.index, myStep.Element);
NewStart = myStep.Element;
}
//Container.ChildElements.Insert(myStep.index, myStep.Element);
//NewStart = myStep.Element;
break;
case 4:
myStep.Attribute.SetValue(myStep.OldValue);
myStep.Element.UpdateAttrubute();
myStep.Element.RefreshSize();
NewStart = myStep.Element;
break;
case 5:
bolRefreshElements = true;
foreach (ZYTextElement e in myStep.Elements)
{
Container = e.Parent;
NewIndex = e.Index;
Container.ChildElements.Remove(e);
}
break;
case 6:
Container = (myStep.Elements[0] as ZYTextElement).Parent;
bolRefreshElements = true;
//索引需大于等于0才进入 add by ywk 2013年4月2日16:16:48
if (myStep.index >= 0)
{
Container.ChildElements.InsertRange(myStep.index, myStep.Elements);
NewIndex = myStep.index;
}
break;
}
}
if (bolRefreshElements)
{
myOwnerDocument.RefreshElements();
}
myOwnerDocument.RefreshLine();
myOwnerDocument.UpdateView();
#region 以前是被注释的，现在放出来
myOwnerDocument.Content.SelectLength = 0;
if (NewStart != null)
{
myOwnerDocument.Content.CurrentElement = NewStart;
}
else if (NewIndex >= 0)
{
myOwnerDocument.Content.MoveSelectStart(NewIndex);
}
#endregion
return(true);
}
return(false);
}
/// <summary>
/// 已重载:执行重复操作
/// </summary>
/// <returns></returns>
public override bool Redo()
{
bool bolRefreshElements = false;
int NewIndex = -1;
ZYTextElement NewStart = null;
if (myUndoSteps.Count > 0)
{
foreach (UndoStep myStep in myUndoSteps)
{
switch (myStep.Style)
{
case 0:
Container = myStep.Element.Parent;
bolRefreshElements = true;
Container.ChildElements.Insert(myStep.index, myStep.Element);
myStep.Element.OwnerDocument = Container.OwnerDocument;
myStep.Element.Parent = Container;
NewStart = myStep.Element;
break;
case 1:
Container = (myStep.Elements[0] as ZYTextElement).Parent;
bolRefreshElements = true;
Container.ChildElements.InsertRange(myStep.index, myStep.Elements);
if (myStep.Elements.Count > 0)
{
NewStart = (ZYTextElement)myStep.Elements[0];
}
break;
case 5:
Container = (myStep.Elements[0] as ZYTextElement).Parent;
bolRefreshElements = true;
Container.ChildElements.AddRange(myStep.Elements);
if (myStep.Elements.Count > 0)
{
NewStart = (ZYTextElement)myStep.Elements[0];
}
break;
case 6:
Container = (myStep.Elements[0] as ZYTextElement).Parent;
bolRefreshElements = true;
NewIndex = myStep.index;
Container.ChildElements.RemoveRange(myStep.index, myStep.Elements.Count);
break;
case 2:
Container = myStep.Element.Parent;
bolRefreshElements = true;
Container.ChildElements.Add(myStep.Element);
NewStart = myStep.Element;
break;
case 3:
Container = myStep.Element.Parent;
bolRefreshElements = true;
NewIndex = myStep.index;
Container.ChildElements.Remove(myStep.Element);
break;
case 4:
myStep.Attribute.SetValue(myStep.NewValue);
myStep.Element.RefreshSize();
NewStart = myStep.Element;
myStep.Element.UpdateAttrubute();
break;
}
}
if (bolRefreshElements)
{
OwnerDocument.RefreshElements();
}
OwnerDocument.RefreshLine();
OwnerDocument.UpdateView();
//这句以前是被注释掉的，现在也放出来
myOwnerDocument.Content.SelectLength = 0;
if (NewStart != null)
{
myOwnerDocument.Content.CurrentElement = NewStart;
}
else if (NewIndex >= 0)
{
myOwnerDocument.Content.MoveSelectStart(NewIndex);
}
return(true);
}
return(false);
}