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>
/// 比较两个对象设置是否一致
/// </summary>
/// <param name="info1">信息1</param>
/// <param name="info2">信息2</param>
/// <returns>设置是否一致</returns>
public static bool Compare(HighlightInfo info1, HighlightInfo info2)
{
if (info1 == info2)
{
return(true);
}
else
{
if (info1 == null || info2 == null)
{
// 此时两个对象必然一个为空另外一个不为空，因此不可能相等
return(false);
}
if (DomRange.Compare(info1.Range, info2.Range) == false ||
info1._ActiveStyle != info2._ActiveStyle ||
info1._BackColor != info2._BackColor ||
info1._Color != info2._Color)
{
return(false);
}
else
{
return(true);
}
}
}
/// <summary>
/// 声明指定的元素相关的高亮度显示区域无效,需要重新设置
/// </summary>
/// <param name="element">文档元素对象</param>
/// <param name="deleteElement">由于删除元素操作而执行本方法，
/// 此时不需要将元素添加到高亮度区域状态未知的元素列表</param>
public void InvalidateHighlightInfo(DomElement element)
{
if (element is DomCharElement)
{
// 字符元素不能设置为高亮度区域，因此不处理，提高效率
return;
}
if (_InnerHighlightInfos != null)
{
if (_InvalidateHighlightInfoElements == null)
{
_InvalidateHighlightInfoElements = new DomElementList();
}
if (_InvalidateHighlightInfoElements.Contains(element) == false)
{
_InvalidateHighlightInfoElements.Add(element);
if (_InnerHighlightInfos != null)
{
for (int iCount = _InnerHighlightInfos.Count - 1; iCount >= 0; iCount--)
{
HighlightInfo info = _InnerHighlightInfos[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);
if (info.OwnerElement != null &&
_InvalidateHighlightInfoElements.Contains(info.OwnerElement) == false)
{
_InvalidateHighlightInfoElements.Add(info.OwnerElement);
}
}
_InnerHighlightInfos.RemoveAt(iCount);
}
} //for
} //if
} //if
}
}
/// <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>
/// 获得指定元素所在的高亮度显示区域
/// </summary>
/// <param name="element">指定的文档元素对象</param>
/// <returns>获得的高亮度显示区域</returns>
public virtual HighlightInfo this[DomElement element]
{
get
{
if (element == null)
{
return(null);
}
// 首先搜索鼠标悬浮高亮度显示区域,该区域优先级最高而且最容易被命中
if (_HoverHighlightInfo != null)
{
if (_HoverHighlightInfo.Contains(element))
{
return(_HoverHighlightInfo);
}
}
// 搜索用户设置的高亮度显示区域，用户设置的优先处理
if (this.HighlightRanges != null && this.HighlightRanges.Count > 0)
{
HighlightInfo info = this.HighlightRanges[element];
if (info != null)
{
return(info);
}
}
// 搜索内部自动生成的区域
if (this.InnerHighlightInfos.Count > 0)
{
HighlightInfo info = this.InnerHighlightInfos[element];
if (info != null)
{
return(info);
}
}
return(null);
}
}
/// <summary>
/// 绘制对象
/// </summary>
/// <param name="g">图形绘制对象</param>
/// <param name="ClipRectangle">剪切矩形</param>
protected virtual void DrawContent(DomCharElement chr, DocumentPaintEventArgs args)
{
DocumentContentStyle rs = chr.RuntimeStyle;
System.Drawing.RectangleF rect = chr.AbsBounds;
rect.Height = rect.Height * 1.5f;
rect.Width = rect.Width * 1.5f;
//if (chr.OwnerLine.AdditionHeight < 0)
{
rect.Height = Math.Max(
rect.Height,
chr.OwnerLine.Height + chr.OwnerLine.AdditionHeight);
}
//rect.Height = Math.Min(rect.Height, chr.OwnerLine.Height);
Color cc = rs.Color;
if (args.RenderStyle == DocumentRenderStyle.Paint)
{
HighlightInfo info = this.Document.HighlightManager[chr];
if (info != null && info.Color.A != 0)
{
// 设置高亮度文本值
cc = info.Color;
}
}
SolidBrush b = GraphicsObjectBuffer.GetSolidBrush(cc);
XFontValue font = rs.Font.Clone();
if (rs.Subscript || rs.Superscript)
{
font.Size = font.Size * 0.6f;
if (rs.Superscript)
{
args.Graphics.DrawString(chr.CharValue.ToString(),
font.Value,
b,
rect.Left,
rect.Top,
myMeasureFormat);
}
else
{
args.Graphics.DrawString(chr.CharValue.ToString(),
font.Value,
b,
rect.Left,
(int)Math.Floor(rect.Top + (rect.Height * 0.4)),
myMeasureFormat);
}
}
else
{
if ((rs.Underline || rs.Strikeout) && chr.CharValue == ' ')
{
// .NET框架存在一个BUG，不能为空格绘制下划线和删除线，因此在此进行替换绘制成不带下划线的下划线字母。
XFontValue font2 = rs.Font.Clone();
if (font2.Underline)
{
font2.Underline = false;
args.Graphics.DrawString(
"_",
font2.Value,
b,
rect.Left,
rect.Top,
myMeasureFormat);
}
else
{
font2.Strikeout = false;
args.Graphics.DrawString(
"-",
font2.Value,
b,
rect.Left,
rect.Top,
myMeasureFormat);
}
}
else
{
//InnerFormat.FormatFlags = InnerFormat.FormatFlags | StringFormatFlags.MeasureTrailingSpaces;
//InnerFormat.FormatFlags = StringFormatFlags.FitBlackBox | StringFormatFlags.MeasureTrailingSpaces ;
args.Graphics.DrawString(
chr.CharValue.ToString(),
rs.Font.Value,
b,
rect,
myMeasureFormat);
}
}
//if ( font.Underline )
//{
// float fh = font.GetHeight(args.Graphics);
// Pen p = SolidBrushBuffer.GetPen(cc);
// args.Graphics.DrawLine(
// p,
// rect.Left ,
// rect.Top + fh ,
// rect.Right + chr.WidthFix,
// rect.Top + fh );
//}
}
/// <summary>
/// 绘制文档元素背景
/// </summary>
/// <param name="element">文档元素对象</param>
/// <param name="args">参数</param>
/// <param name="bounds">要绘制背景的区域</param>
public virtual void DrawBackground(
DomElement element,
DocumentPaintEventArgs args,
RectangleF bounds)
{
if (bounds.IsEmpty)
{
// 不绘制图形
return;
}
DocumentContentStyle rs = null;
if (element.Parent != null)
{
rs = element.Parent.GetContentBackgroundStyle(element);
}
if (rs == null)
{
rs = element.RuntimeStyle;
}
System.Drawing.Color c = rs.BackgroundColor;
if (c.A != 0)
{
System.Drawing.SolidBrush b = GraphicsObjectBuffer.GetSolidBrush(c);
bounds = System.Drawing.RectangleF.Intersect(bounds, args.ClipRectangleF);
if (!bounds.IsEmpty)
{
args.Graphics.FillRectangle(b, bounds);
return;
}
}
HighlightInfo highlight = null;
if (args.ActiveMode && args.RenderStyle == DocumentRenderStyle.Paint)
{
highlight = this.Document.HighlightManager[element];
}
if (highlight != null)
{
if (args.RenderStyle == DocumentRenderStyle.Print &&
highlight.ActiveStyle != HighlightActiveStyle.AllTime)
{
// 当进行打印时不显示不能打印的高亮度色
return;
}
// 如果需要高亮度显示
// 则绘制高亮度背景
bounds = RectangleF.Intersect(bounds, args.ClipRectangleF);
if (highlight.BackColor.A != 0)
{
if (!bounds.IsEmpty)
{
args.Graphics.FillRectangle(
GraphicsObjectBuffer.GetSolidBrush(highlight.BackColor),
bounds);
}
}
}
}