/**
* Also taking into account the CSS properties of any parent tag in the given tag.
*
* @see com.itextpdf.tool.xml.pipeline.css.CSSResolver#resolveStyles(com.itextpdf.tool.xml.Tag)
*/
//THE DIFFERENCE BETWEEN HTML AND SVG: SVG has for a lot of style properties the possibility to use still attributes that define the same
public void ResolveStyles(Tag t)
{
// get css for this tag from resolver
IDictionary <String, String> tagCss = new Dictionary <String, String>();
if (null != cssFiles && cssFiles.HasFiles())
{
tagCss = cssFiles.GetCSS(t);
}
if (null != t.Attributes && t.Attributes.Count > 0)
{
//first get the attributes that related to style but aren't in a style attribute, these can be overwritten by the same element that is defined in a style
//TODO check default values & incorrect values:
//e.g. stroke="red" style="stroke:yellow" -> yellow but stroke="red" style="stroke:an non-existing color" -> red
//if both are wrong or missing -> take from parent
foreach (KeyValuePair <String, String> pair in t.Attributes)
{
bool valid = SVGAttributes.IsValidAttribute(pair.Key, pair.Value, attributes);
if (valid)
{
tagCss[pair.Key] = pair.Value;
}
}
// get css from "style" attr
String styleAtt;
if (t.Attributes.TryGetValue(HTML.Attribute.STYLE, out styleAtt) && !string.IsNullOrEmpty(styleAtt))
{
String[] styles = styleAtt.Split(new Char[] { ';' });
foreach (String s in styles)
{
String[] part = s.Split(new Char[] { ':' }, 2);
if (part.Length == 2)
{
String key = part[0].Trim();
String value = utils.StripDoubleSpacesAndTrim(part[1]);
//ONLY add when it is a valid style attribute in SVG
if (SVGAttributes.IsValidAttribute(key, value, attributes))
{
tagCss[key] = value;
}
else
{
//System.out.Println(key + " " + value);
}
//splitRules(tagCss, key, value);
}
}
}
}
// inherit css from parent tags, as defined in provided CssInheritanceRules or if property = inherit
IDictionary <String, String> css = t.CSS;
if (MustInherit(t.Name) && null != t.Parent && null != t.Parent.CSS)
{
if (null != this.inherit)
{
foreach (KeyValuePair <String, String> entry in t.Parent.CSS)
{
String key = entry.Key;
if ((tagCss.ContainsKey(key) && CSS.Value.INHERIT.Equals(tagCss.ContainsKey(key) ? tagCss[key] : null)) || CanInherite(t, key))
{
//splitRules(css, key, entry.GetValue());
if (SVGAttributes.IsValidAttribute(key, entry.Value, attributes))
{
css[key] = entry.Value;
}
}
}
}
else
{
CssUtils.MapPutAll(css, t.Parent.CSS);
}
}
// overwrite properties (if value != inherit)
foreach (KeyValuePair <String, String> e in tagCss)
{
if (!Util.EqualsIgnoreCase(CSS.Value.INHERIT, e.Value))
{
css[e.Key] = e.Value;
}
}
}
