Allow parse CSS from string.

--HG--
branch : dev

include/eepp/ui/css/stylesheetparser.hpp

@@ -31,6 +31,8 @@ class EE_API StyleSheetParser {
 
 		bool loadFromPack( Pack * pack, std::string filePackPath );
 
+		bool loadFromString( const std::string& str );
+
 		void print();
 
 		StyleSheet& getStyleSheet();

src/eepp/ui/css/stylesheetparser.cpp

@@ -66,6 +66,13 @@ void StyleSheetParser::print() {
 	}
 }
 
+bool StyleSheetParser::loadFromString( const std::string& str ) {
+	if ( str.empty() )
+		return false;
+
+	return loadFromMemory( (const Uint8*)&str[0], str.size() );
+}
+
 StyleSheet &StyleSheetParser::getStyleSheet() {
 	return mStyleSheet;
 }