/// <summary>
/// 从指定的资源地址加载图片数据
/// </summary>
/// <param name="strUrl">图片资源地址</param>
/// <param name="setSize">是否设置对象大小</param>
/// <returns>操作是否成功</returns>
public bool LoadImage(string strUrl, bool setSize)
{
if (myImage.Load(strUrl) > 0)
{
if (setSize)
{
UpdateSize();
}
return(true);
}
return(false);
}
private void CreateElements(
HTMLElement rootHtmlElement,
DomElement rootDomElement,
DocumentContentStyle currentStyle)
{
if (rootHtmlElement.ChildNodes == null)
{
return;
}
foreach (HTMLElement element in rootHtmlElement.ChildNodes)
{
if (element is HTMLCommentElement)
{
// 忽略注释
continue;
}
string tagName = element.FixTagName;
switch (tagName)
{
case "div":
{
CreateElements(element, rootDomElement, currentStyle);
DomElement p = this.DomDocument.CreateElement(typeof(DomParagraphFlagElement));
p.StyleIndex = this.DomDocument.ContentStyles.GetStyleIndex(currentStyle);
rootDomElement.Elements.Add(p);
}
break;
case "ul": // 原点式列表
case "ol": // 数值式列表
foreach (HTMLElement li in element.ChildNodes)
{
if (li.FixTagName == "li")
{
CreateElements(li, rootDomElement, currentStyle);
DomParagraphFlagElement flag = (DomParagraphFlagElement)this.DomDocument.CreateElement(typeof(DomParagraphFlagElement));
DocumentContentStyle s = (DocumentContentStyle)currentStyle.Clone();
if (tagName == "ul")
{
s.BulletedList = true;
}
else
{
s.NumberedList = true;
}
flag.StyleIndex = this.DomDocument.ContentStyles.GetStyleIndex(s);
rootDomElement.Elements.Add(flag);
} //if
} //foreach
break;
case "pre":
{
// 预览文本
DocumentContentStyle s = CreateStyle(element, currentStyle);
DomElementList list = this.DomDocument.CreateTextElements(element.InnerText, null, s);
rootDomElement.Elements.AddRange(list);
DomElement p = this.DomDocument.CreateElement(typeof(DomParagraphFlagElement));
p.StyleIndex = this.DomDocument.ContentStyles.GetStyleIndex(currentStyle);
rootDomElement.Elements.Add(p);
break;
}
case "img":
{
// 图片
DocumentContentStyle s = CreateStyle(element, currentStyle);
s.BorderColor = Color.Black;
s.BorderLeft = true;
s.BorderTop = true;
s.BorderRight = true;
s.BorderBottom = true;
s.BorderWidth = 0;
if (element.HasAttribute("border"))
{
s.BorderWidth = ToInt32(element.GetAttribute("border"));
}
DomImageElement img = (DomImageElement)this.DomDocument.CreateElement(typeof(DomImageElement));
img.StyleIndex = this.DomDocument.ContentStyles.GetStyleIndex(s);
if (element.HasAttribute("width"))
{
img.Width = (float )ToLength(element.GetAttribute("width"));
}
if (element.HasAttribute("height"))
{
img.Height = ( float )ToLength(element.GetAttribute("height"));
}
if (element.HasAttribute("id"))
{
img.ID = element.GetAttribute("id");
}
if (element.HasAttribute("alt"))
{
img.Alt = element.GetAttribute("alt");
}
if (element.HasAttribute("title"))
{
img.Title = element.GetAttribute("title");
}
if (element.HasAttribute("src"))
{
XImageValue v = new XImageValue();
string url = this.HtmlDocument.GetAbsoluteURL(element.GetAttribute("src"));
try
{
string msg = string.Format(WriterStrings.Downloading_URL, url);
if (this.DomDocument.EditorControl != null)
{
this.DomDocument.EditorControl.SetStatusText(msg);
}
if (this.DomDocument.Options.BehaviorOptions.DebugMode)
{
System.Diagnostics.Debug.Write(msg);
}
int len = v.Load(url);
if (this.DomDocument.Options.BehaviorOptions.DebugMode)
{
System.Diagnostics.Debug.WriteLine(WriterUtils.FormatByteSize(len));
}
}
catch (Exception ext)
{
img.Alt = url + ":" + ext.Message;
if (this.DomDocument.Options.BehaviorOptions.DebugMode)
{
System.Diagnostics.Debug.WriteLine(WriterStrings.Fail);
}
}
if (this.DomDocument.EditorControl != null)
{
this.DomDocument.EditorControl.SetStatusText(null);
}
if (v.HasContent == false)
{
img.Alt = url;
if (img.Width == 0)
{
img.Width = 300;
}
if (img.Height == 0)
{
img.Height = 150;
}
}
img.Image = v;
}
if (img.Width == 0 || img.Height == 0)
{
img.UpdateSize();
}
rootDomElement.Elements.Add(img);
}
break;
case "#text":
{
// 纯文本片段
string text = DCSoft.Common.StringFormatHelper.NormalizeSpace(element.Text);
text = System.Web.HttpUtility.HtmlDecode(text);
if (string.IsNullOrEmpty(text) == false)
{
DomElementList cs = this._DomDocument.CreateTextElements(
text,
currentStyle,
currentStyle);
if (cs != null && cs.Count > 0)
{
rootDomElement.Elements.AddRange(cs);
}
}
}
break;
case "p":
{
// 段落
DocumentContentStyle ps = CreateStyle(element, currentStyle);
CreateElements(element, rootDomElement, ps);
DomParagraphFlagElement flag = ( DomParagraphFlagElement )_DomDocument.CreateElement(typeof(DomParagraphFlagElement));
flag.StyleIndex = _DomDocument.ContentStyles.GetStyleIndex(ps);
rootDomElement.Elements.Add(flag);
}
break;
case "br":
{
// 软回车
DomLineBreakElement lb = (DomLineBreakElement)_DomDocument.CreateElement(typeof(DomLineBreakElement));
rootDomElement.Elements.Add(lb);
}
break;
case "sup":
{
// 上标
DocumentContentStyle ss = ( DocumentContentStyle )currentStyle.Clone();
ss.Superscript = true;
CreateElements(element, rootDomElement, ss);
}
break;
case "sub":
{
// 下标
DocumentContentStyle ss = (DocumentContentStyle)currentStyle.Clone();
ss.Subscript = true;
CreateElements(element, rootDomElement, ss);
}
break;
case "strong":
case "b":
{
// 粗体
DocumentContentStyle ss = (DocumentContentStyle)currentStyle.Clone();
ss.Bold = true;
CreateElements(element, rootDomElement, ss);
}
break;
case "i":
{
// 斜体
DocumentContentStyle ss = (DocumentContentStyle)currentStyle.Clone();
ss.Italic = true;
CreateElements(element, rootDomElement, ss);
}
break;
case "strike":
{
// 删除线
DocumentContentStyle ss = (DocumentContentStyle)currentStyle.Clone();
ss.Strikeout = true;
CreateElements(element, rootDomElement, ss);
}
break;
case "a":
{
// 超链接
DocumentContentStyle ss = (DocumentContentStyle)currentStyle.Clone();
ss.Color = Color.Blue;
CreateElements(element, rootDomElement, ss);
}
break;
case "font":
{
// 字体
DocumentContentStyle ss = CreateStyle(element, currentStyle);
if (element.HasAttribute("color"))
{
// 文字颜色
ss.Color = ToColor(element.GetAttribute("color"), Color.Black);
}
if (element.HasAttribute("face"))
{
// 字体名称
ss.FontName = GetFontName(element.GetAttribute("face"));
}
if (element.HasAttribute("size"))
{
// 文字大小
int size = ToInt32(element.GetAttribute("size"));
switch (size)
{
case 1: ss.FontSize = 7; break;
case 2: ss.FontSize = 10; break;
case 3: ss.FontSize = 12; break;
case 4: ss.FontSize = 14; break;
case 5: ss.FontSize = 18; break;
case 6: ss.FontSize = 24; break;
case 7: ss.FontSize = 35; break;
}
}
CreateElements(element, rootDomElement, ss);
}
break;
case "h1":
case "h2":
case "h3":
case "h4":
case "h5":
case "h6":
{
// 标题
rootDomElement.Elements.Add(this.DomDocument.CreateElement(typeof(DomParagraphFlagElement)));
float fz = 9;
switch (tagName)
{
case "h1": fz = 24; break;
case "h2": fz = 18; break;
case "h3": fz = 13; break;
case "h4": fz = 12; break;
case "h5": fz = 10; break;
case "h6": fz = 8; break;
}
DocumentContentStyle ss = CreateStyle(element, currentStyle);
if (XDependencyObject.HasPropertyValue(ss, "FontSize"))
{
ss.FontSize = fz;
}
CreateElements(element, rootDomElement, ss);
rootDomElement.Elements.Add(this.DomDocument.CreateElement(typeof(DomParagraphFlagElement)));
}
break;
default:
{
DocumentContentStyle ds = CreateStyle(element, (DocumentContentStyle)currentStyle);
CreateElements(element, rootDomElement, ds);
}
break;
} //switch
} //foreach
}
private void ParseStyleItem(DocumentContentStyle cstyle, string styleName, string styleValue)
{
switch (styleName)
{
case "width":
{
float v = 0;
if (TryParseLength(styleValue, out v))
{
cstyle.WidthValue = v;
}
}
break;
case "height":
{
float v = 0;
if (TryParseLength(styleValue, out v))
{
cstyle.HeightValue = v;
}
}
break;
case "background":
{
// 解析背景设置
string[] items = SplitItems(styleValue);
if (items != null)
{
foreach (string item in items)
{
Color c = Color.Empty;
string url = GetAttributeUrl(item);
if (url != null)
{
url = this.HtmlDocument.GetAbsoluteURL(url);
XImageValue img = new XImageValue();
if (img.Load(url) <= 0)
{
cstyle.BackgroundImage = img;
}
}
else if (TryParseColor(item, out c))
{
cstyle.BackgroundColor = c;
}
else if (string.Equals(item, "repeat", StringComparison.CurrentCultureIgnoreCase))
{
cstyle.BackgroundRepeat = true;
}
else if (string.Equals(item, "no-repeat", StringComparison.CurrentCultureIgnoreCase))
{
cstyle.BackgroundRepeat = false;
}
} //foreach
}
}
break;
case "background-color":
{
Color c = Color.Empty;
if (TryParseColor(styleValue, out c))
{
cstyle.BackgroundColor = c;
}
}
break;
case "background-repeat":
{
string text = Trim(styleValue);
if (string.Equals(text, "repeat", StringComparison.CurrentCultureIgnoreCase))
{
cstyle.BackgroundRepeat = true;
}
else if (string.Equals(text, "no-repeat", StringComparison.CurrentCultureIgnoreCase))
{
cstyle.BackgroundRepeat = false;
}
else
{
cstyle.BackgroundRepeat = true;
}
}
break;
case "border":
{
// 解析边框设置
string[] items = SplitItems(styleValue);
if (items != null)
{
foreach (string item in items)
{
DashStyle ds = DashStyle.Custom;
Color c = Color.Empty;
float w = 0;
if (TryParseBorderStyle(item, out ds))
{
cstyle.BorderStyle = ds;
if (ds == DashStyle.Custom)
{
cstyle.BorderStyle = DashStyle.Solid;
cstyle.BorderWidth = 0;
break;
}
}
else if (TryParseColor(item, out c))
{
cstyle.BorderColor = c;
}
else if (TryParseBorderWidth(item, ref w))
{
cstyle.BorderWidth = w;
}
} //foreach
}
}
break;
case "border-color":
{
Color c = Color.Empty;
if (TryParseColor(styleValue, out c))
{
cstyle.BorderColor = c;
}
}
break;
case "border-width":
{
float w = 0;
if (TryParseBorderWidth(styleValue, ref w))
{
cstyle.BorderWidth = w;
}
}
break;
case "border-style":
{
DashStyle bs = DashStyle.Solid;
if (TryParseBorderStyle(styleValue, out bs))
{
cstyle.BorderStyle = bs;
if (bs == DashStyle.Custom)
{
cstyle.BorderStyle = DashStyle.Solid;
cstyle.BorderWidth = 0;
}
}
}
break;
case "color":
{
Color c = Color.Empty;
if (TryParseColor(styleValue, out c))
{
cstyle.Color = c;
}
}
break;
case "font":
{
string[] items = SplitItems(styleValue);
if (items != null)
{
for (int iCount = 0; iCount < items.Length; iCount++)
{
string item = items[iCount];
float size = 0;
if (string.Equals(item, "italic", StringComparison.CurrentCultureIgnoreCase))
{
cstyle.Italic = true;
}
else if (string.Equals(item, "oblique", StringComparison.CurrentCultureIgnoreCase))
{
cstyle.Italic = true;
}
else if (string.Equals(item, "bold", StringComparison.CurrentCultureIgnoreCase))
{
cstyle.Bold = true;
}
else if (string.Equals(item, "bolder", StringComparison.CurrentCultureIgnoreCase))
{
cstyle.Bold = true;
}
else if (TryParseLength(item, out size))
{
cstyle.FontSize = GraphicsUnitConvert.Convert(size, this.DomDocument.DocumentGraphicsUnit, GraphicsUnit.Point);
}
else
{
string name2 = GetFontName(item);
if (name2 != null)
{
cstyle.FontName = name2;
}
}
}
}
}
break;
case "font-family":
{
string fn = GetFontName(styleValue);
if (fn != null)
{
cstyle.FontName = fn;
}
}
break;
case "font-size":
{
float size = 0;
if (TryParseLength(styleValue, out size))
{
cstyle.FontSize = GraphicsUnitConvert.Convert(
size,
this.DomDocument.DocumentGraphicsUnit,
GraphicsUnit.Point);
}
}
break;
case "font-style":
{
if (Contains(styleValue, "italic") ||
Contains(styleValue, "oblique"))
{
cstyle.Italic = true;
}
}
break;
case "font-weight":
if (Contains(styleValue, "bold"))
{
cstyle.Bold = true;
}
else if (Contains(styleValue, "700"))
{
cstyle.Bold = true;
}
break;
case "line-height":
break;
case "text-align":
if (Contains(styleValue, "left"))
{
cstyle.Align = DocumentContentAlignment.Left;
}
else if (Contains(styleValue, "right"))
{
cstyle.Align = DocumentContentAlignment.Right;
}
else if (Contains(styleValue, "center"))
{
cstyle.Align = DocumentContentAlignment.Center;
}
else if (Contains(styleValue, "justify"))
{
cstyle.Align = DocumentContentAlignment.Justify;
}
break;
case "text-indent":
{
float v = 0;
if (TryParseLength(styleValue, out v))
{
cstyle.FirstLineIndent = v;
}
}
break;
case "padding":
{
// 读取内边距
float[] values = ParseLengths(styleValue);
if (values != null)
{
if (values.Length >= 4)
{
cstyle.PaddingTop = values[0];
cstyle.PaddingRight = values[1];
cstyle.PaddingBottom = values[2];
cstyle.PaddingLeft = values[3];
}
else if (values.Length == 1)
{
cstyle.PaddingLeft = values[0];
cstyle.PaddingTop = values[0];
cstyle.PaddingRight = values[0];
cstyle.PaddingBottom = values[0];
}
else if (values.Length == 2)
{
cstyle.PaddingTop = values[0];
cstyle.PaddingBottom = values[0];
cstyle.PaddingLeft = values[1];
cstyle.PaddingRight = values[1];
}
else if (values.Length == 3)
{
cstyle.PaddingTop = values[0];
cstyle.PaddingRight = values[1];
cstyle.PaddingLeft = values[1];
cstyle.PaddingBottom = values[2];
}
}
}
break;
case "padding-left":
{
float v = 0;
if (TryParseLength(styleValue, out v))
{
cstyle.PaddingLeft = v;
}
}
break;
case "padding-top":
{
float v = 0;
if (TryParseLength(styleValue, out v))
{
cstyle.PaddingTop = v;
}
}
break;
case "padding-right":
{
float v = 0;
if (TryParseLength(styleValue, out v))
{
cstyle.PaddingRight = v;
}
}
break;
case "padding-bottom":
{
float v = 0;
if (TryParseLength(styleValue, out v))
{
cstyle.PaddingBottom = v;
}
}
break;
}//switch
}