public CssSpacingBox(CssBox tableBox, ref CssBox extendedBox, int startRow) : base(tableBox, new HtmlTag("none", new Dictionary <string, string> { { "colspan", "1" } })) { _extendedBox = extendedBox; Display = CssConstants.None; _startRow = startRow; _endRow = startRow + Int32.Parse(extendedBox.GetAttribute("rowspan", "1")) - 1; }
public CssSpacingBox(CssBox tableBox, ref CssBox extendedBox, int startRow) : base(tableBox, new HtmlTag("none",new Dictionary<string, string>{{"colspan","1"}} )) { _extendedBox = extendedBox; Display = CssConstants.None; _startRow = startRow; _endRow = startRow + Int32.Parse(extendedBox.GetAttribute("rowspan", "1")) - 1; }
/// <summary> /// Gets the rowspan of the specified box /// </summary> /// <param name="b"></param> private int GetRowSpan(CssBox b) { string att = b.GetAttribute("rowspan", "1"); int rowspan; if (!int.TryParse(att, out rowspan)) { return(1); } return(rowspan); }
/// <summary> /// Gets the colspan of the specified box /// </summary> /// <param name="b"></param> private int GetColSpan(CssBox b) { string att = b.GetAttribute("colspan", "1"); int colspan; if (!int.TryParse(att, out colspan)) { return(1); } return(colspan); }
/// <summary> /// Gets the span attribute of the tag of the specified box /// </summary> /// <param name="b"></param> private int GetSpan(CssBox b) { float f = CssValueParser.ParseNumber(b.GetAttribute("span"), 1); return(Math.Max(1, Convert.ToInt32(f))); }
/// <summary> /// Applies style to all boxes in the tree.<br/> /// If the html tag has style defined for each apply that style to the css box of the tag.<br/> /// If the html tag has "class" attribute and the class name has style defined apply that style on the tag css box.<br/> /// If the html tag has "style" attribute parse it and apply the parsed style on the tag css box.<br/> /// If the html tag is "style" tag parse it content and add to the css data for all future tags parsing.<br/> /// If the html tag is "link" that point to style data parse it content and add to the css data for all future tags parsing.<br/> /// </summary> /// <param name="box"></param> /// <param name="bridge"> </param> /// <param name="cssData"> </param> /// <param name="cssDataChanged">check if the css data has been modified by the handled html not to change the base css data</param> private static void CascadeStyles(CssBox box, object bridge, ref CssData cssData, ref bool cssDataChanged) { box.InheritStyle(); if (box.HtmlTag != null) { // try assign style using the html element tag AssignCssBlocks(box, cssData, box.HtmlTag.Name); // try assign style using the "class" attribute of the html element if (box.HtmlTag.HasAttribute("class")) { AssignCssBlocks(box, cssData, "." + box.HtmlTag.Attributes["class"]); AssignCssBlocks(box, cssData, box.HtmlTag.Name + "." + box.HtmlTag.Attributes["class"]); } // try assign style using the "id" attribute of the html element if (box.HtmlTag.HasAttribute("id")) { AssignCssBlocks(box, cssData, "#" + box.HtmlTag.Attributes["id"]); } HtmlParser.TranslateAttributes(box.HtmlTag, box); // Check for the style="" attribute if (box.HtmlTag.HasAttribute("style")) { var block = CssParser.ParseCssBlockImp(box.HtmlTag.Name, box.HtmlTag.Attributes["style"]); AssignCssBlock(box, block); } // Check for the <style> tag if (box.HtmlTag.Name.Equals("style", StringComparison.CurrentCultureIgnoreCase) && box.Boxes.Count == 1) { CloneCssData(ref cssData, ref cssDataChanged); CssParser.ParseStyleSheet(cssData, box.Boxes[0].Text); } // Check for the <link rel=stylesheet> tag if (box.HtmlTag.Name.Equals("link", StringComparison.CurrentCultureIgnoreCase) && box.GetAttribute("rel", string.Empty).Equals("stylesheet", StringComparison.CurrentCultureIgnoreCase)) { CloneCssData(ref cssData, ref cssDataChanged); var styleSheet = CssValueParser.GetStyleSheet(box.GetAttribute("href", string.Empty), bridge); CssParser.ParseStyleSheet(cssData, styleSheet); } } foreach (var childBox in box.Boxes) { CascadeStyles(childBox, bridge, ref cssData, ref cssDataChanged); } }
/// <summary> /// Gets the span attribute of the tag of the specified box /// </summary> /// <param name="b"></param> private int GetSpan(CssBox b) { float f = CssValueParser.ParseNumber(b.GetAttribute("span"), 1); return Math.Max(1, Convert.ToInt32(f)); }
/// <summary> /// Gets the rowspan of the specified box /// </summary> /// <param name="b"></param> private int GetRowSpan(CssBox b) { string att = b.GetAttribute("rowspan", "1"); int rowspan; if (!int.TryParse(att, out rowspan)) { return 1; } return rowspan; }
/// <summary> /// Gets the colspan of the specified box /// </summary> /// <param name="b"></param> private int GetColSpan(CssBox b) { string att = b.GetAttribute("colspan", "1"); int colspan; if (!int.TryParse(att, out colspan)) { return 1; } return colspan; }
/// <summary> /// Get attribute value by given key starting search from given box, search up the tree until /// attribute found or root. /// </summary> /// <param name="box">the box to start lookup at</param> /// <param name="attribute">the attribute to get</param> /// <returns>the value of the attribute or null if not found</returns> public static string GetAttribute(CssBox box, string attribute) { string value = null; while( box != null && value == null ) { value = box.GetAttribute(attribute, null); box = box.ParentBox; } return value; }
/// <summary> /// Applies style to all boxes in the tree.<br/> /// If the html tag has style defined for each apply that style to the css box of the tag.<br/> /// If the html tag has "class" attribute and the class name has style defined apply that style on the tag css box.<br/> /// If the html tag has "style" attribute parse it and apply the parsed style on the tag css box.<br/> /// If the html tag is "style" tag parse it content and add to the css data for all future tags parsing.<br/> /// If the html tag is "link" that point to style data parse it content and add to the css data for all future tags parsing.<br/> /// </summary> /// <param name="box"></param> /// <param name="htmlContainer">the html container to use for reference resolve</param> /// <param name="cssData"> </param> /// <param name="cssDataChanged">check if the css data has been modified by the handled html not to change the base css data</param> private static void CascadeStyles(CssBox box, HtmlContainer htmlContainer, ref CssData cssData, ref bool cssDataChanged) { box.InheritStyle(); if (box.HtmlTag != null) { // try assign style using the html element tag AssignCssBlocks(box, cssData, box.HtmlTag.Name); // try assign style using the "class" attribute of the html element if (box.HtmlTag.HasAttribute("class")) { AssignClassCssBlocks(box, cssData); } // try assign style using the "id" attribute of the html element if (box.HtmlTag.HasAttribute("id")) { var id = box.HtmlTag.TryGetAttribute("id"); AssignCssBlocks(box, cssData, "#" + id); } TranslateAttributes(box.HtmlTag, box); // Check for the style="" attribute if (box.HtmlTag.HasAttribute("style")) { var block = CssParser.ParseCssBlock(box.HtmlTag.Name, box.HtmlTag.TryGetAttribute("style")); AssignCssBlock(box, block); } // Check for the <style> tag if (box.HtmlTag.Name.Equals("style", StringComparison.CurrentCultureIgnoreCase) && box.Boxes.Count == 1) { CloneCssData(ref cssData, ref cssDataChanged); CssParser.ParseStyleSheet(cssData, box.Boxes[0].Text.CutSubstring()); } // Check for the <link rel=stylesheet> tag if (box.HtmlTag.Name.Equals("link", StringComparison.CurrentCultureIgnoreCase) && box.GetAttribute("rel", string.Empty).Equals("stylesheet", StringComparison.CurrentCultureIgnoreCase)) { CloneCssData(ref cssData, ref cssDataChanged); var styleSheet = StylesheetLoadHelper.LoadStylesheet(htmlContainer, box.GetAttribute("href", string.Empty), box.HtmlTag.Attributes); CssParser.ParseStyleSheet(cssData, styleSheet); } } // cascade text decoration only to boxes that actually have text so it will be handled correctly. if (box.TextDecoration != String.Empty && box.Text == null) { foreach (var childBox in box.Boxes) childBox.TextDecoration = box.TextDecoration; box.TextDecoration = string.Empty; } foreach (var childBox in box.Boxes) { CascadeStyles(childBox, htmlContainer, ref cssData, ref cssDataChanged); } }