public virtual IDictionary <String, String> ResolveStyles(INode node, AbstractCssContext context)
{
IDictionary <String, String> styles = ResolveNativeStyles(node, context);
//Load in and merge inherited declarations from parent
if (node.ParentNode() is IStylesContainer)
{
IStylesContainer parentNode = (IStylesContainer)node.ParentNode();
IDictionary <String, String> parentStyles = parentNode.GetStyles();
if (parentStyles == null && !(node.ParentNode() is IDocumentNode))
{
ILog logger = LogManager.GetLogger(typeof(iText.Svg.Css.Impl.SvgStyleResolver));
logger.Error(iText.StyledXmlParser.LogMessageConstant.ERROR_RESOLVING_PARENT_STYLES);
}
ICollection <IStyleInheritance> inheritanceRules = new HashSet <IStyleInheritance>();
inheritanceRules.Add(new CssInheritance());
inheritanceRules.Add(new SvgAttributeInheritance());
if (parentStyles != null)
{
foreach (KeyValuePair <String, String> entry in parentStyles)
{
String parentFontSizeString = parentStyles.Get(CommonCssConstants.FONT_SIZE);
if (parentFontSizeString == null)
{
parentFontSizeString = "0";
}
styles = StyleUtil.MergeParentStyleDeclaration(styles, entry.Key, entry.Value, parentFontSizeString, inheritanceRules
);
}
}
}
return(styles);
}
protected internal virtual void ApplyStyles(ISvgNodeRenderer parent, ISvgNodeRenderer child)
{
if (parent != null && child != null)
{
IDictionary <String, String> childStyles = child.GetAttributeMapCopy();
if (childStyles == null)
{
childStyles = new Dictionary <String, String>();
}
IDictionary <String, String> parentStyles = parent.GetAttributeMapCopy();
String parentFontSize = parent.GetAttribute(SvgConstants.Attributes.FONT_SIZE);
if (parentFontSize == null)
{
parentFontSize = "0";
}
ICollection <IStyleInheritance> inheritanceRules = new HashSet <IStyleInheritance>();
inheritanceRules.Add(new CssInheritance());
inheritanceRules.Add(new SvgAttributeInheritance());
foreach (KeyValuePair <String, String> parentAttribute in parentStyles)
{
childStyles = StyleUtil.MergeParentStyleDeclaration(childStyles, parentAttribute.Key, parentAttribute.Value
, parentFontSize, inheritanceRules);
}
child.SetAttributesAndStyles(childStyles);
}
}
/* (non-Javadoc)
* @see com.itextpdf.html2pdf.css.resolve.ICssResolver#resolveStyles(com.itextpdf.html2pdf.html.node.INode, com.itextpdf.html2pdf.css.resolve.CssContext)
*/
private IDictionary <String, String> ResolveStyles(INode element, CssContext context)
{
IList <CssRuleSet> ruleSets = new List <CssRuleSet>();
ruleSets.Add(new CssRuleSet(null, UserAgentCss.GetStyles(element)));
if (element is IElementNode)
{
ruleSets.Add(new CssRuleSet(null, HtmlStylesToCssConverter.Convert((IElementNode)element)));
}
ruleSets.AddAll(cssStyleSheet.GetCssRuleSets(element, deviceDescription));
if (element is IElementNode)
{
String styleAttribute = ((IElementNode)element).GetAttribute(AttributeConstants.STYLE);
if (styleAttribute != null)
{
ruleSets.Add(new CssRuleSet(null, CssRuleSetParser.ParsePropertyDeclarations(styleAttribute)));
}
}
IDictionary <String, String> elementStyles = CssStyleSheet.ExtractStylesFromRuleSets(ruleSets);
if (CssConstants.CURRENTCOLOR.Equals(elementStyles.Get(CssConstants.COLOR)))
{
// css-color-3/#currentcolor:
// If the ‘currentColor’ keyword is set on the ‘color’ property itself, it is treated as ‘color: inherit’.
elementStyles.Put(CssConstants.COLOR, CssConstants.INHERIT);
}
String parentFontSizeStr = null;
if (element.ParentNode() is IStylesContainer)
{
IStylesContainer parentNode = (IStylesContainer)element.ParentNode();
IDictionary <String, String> parentStyles = parentNode.GetStyles();
if (parentStyles == null && !(element.ParentNode() is IDocumentNode))
{
ILog logger = LogManager.GetLogger(typeof(iText.Html2pdf.Css.Resolve.DefaultCssResolver));
logger.Error(iText.Html2pdf.LogMessageConstant.ERROR_RESOLVING_PARENT_STYLES);
}
if (parentStyles != null)
{
ICollection <IStyleInheritance> inheritanceRules = new HashSet <IStyleInheritance>();
inheritanceRules.Add(cssInheritance);
foreach (KeyValuePair <String, String> entry in parentStyles)
{
elementStyles = StyleUtil.MergeParentStyleDeclaration(elementStyles, entry.Key, entry.Value, parentStyles.
Get(CommonCssConstants.FONT_SIZE), inheritanceRules);
}
parentFontSizeStr = parentStyles.Get(CssConstants.FONT_SIZE);
}
}
String elementFontSize = elementStyles.Get(CssConstants.FONT_SIZE);
if (CssUtils.IsRelativeValue(elementFontSize) || CssConstants.LARGER.Equals(elementFontSize) || CssConstants
.SMALLER.Equals(elementFontSize))
{
float baseFontSize;
if (CssUtils.IsRemValue(elementFontSize))
{
baseFontSize = context.GetRootFontSize();
}
else
{
if (parentFontSizeStr == null)
{
baseFontSize = CssUtils.ParseAbsoluteFontSize(CssDefaults.GetDefaultValue(CssConstants.FONT_SIZE));
}
else
{
baseFontSize = CssUtils.ParseAbsoluteLength(parentFontSizeStr);
}
}
float absoluteFontSize = CssUtils.ParseRelativeFontSize(elementFontSize, baseFontSize);
// Format to 4 decimal places to prevent differences between Java and C#
elementStyles.Put(CssConstants.FONT_SIZE, DecimalFormatUtil.FormatNumber(absoluteFontSize, "0.####") + CssConstants
.PT);
}
else
{
elementStyles.Put(CssConstants.FONT_SIZE, Convert.ToString(CssUtils.ParseAbsoluteFontSize(elementFontSize)
, System.Globalization.CultureInfo.InvariantCulture) + CssConstants.PT);
}
// Update root font size
if (element is IElementNode && TagConstants.HTML.Equals(((IElementNode)element).Name()))
{
context.SetRootFontSize(elementStyles.Get(CssConstants.FONT_SIZE));
}
ICollection <String> keys = new HashSet <String>();
foreach (KeyValuePair <String, String> entry in elementStyles)
{
if (CssConstants.INITIAL.Equals(entry.Value) || CssConstants.INHERIT.Equals(entry.Value))
{
// if "inherit" is not resolved till now, parents don't have it
keys.Add(entry.Key);
}
}
foreach (String key in keys)
{
elementStyles.Put(key, CssDefaults.GetDefaultValue(key));
}
// This is needed for correct resolving of content property, so doing it right here
CounterProcessorUtil.ProcessCounters(elementStyles, context, element);
ResolveContentProperty(elementStyles, element, context);
return(elementStyles);
}