Support underlined text in DialogXML

rsrc/schemas/dialog.xsd

@@ -162,6 +162,7 @@
 		<xs:attribute name="name" type="xs:token"/>
 		<xs:attributeGroup ref="frame"/>
 		<xs:attributeGroup ref="font"/>
+		<xs:attribute name="underline" type="bool"/>
 		<xs:attribute ref="def-key"/>
 		<xs:attribute name="fromlist" default="none" type="xs:string"/>
 		<xs:attributeGroup ref="rect-size"/>

src/dialogxml/widgets/message.cpp

@@ -52,6 +52,12 @@ bool cTextMsg::parseAttribute(ticpp::Attribute& attr, std::string tagName, std::
 			throw xBadVal(tagName, attr.Name(), val, attr.Row(), attr.Column(), fname);
 		}
 		return true;
+	} else if(attr.Name() == "underline") {
+		std::string val = attr.Value();
+		if(val == "true") underlined = true;
+		else if(val == "false") underlined = false;
+		else throw xBadVal(tagName, attr.Name(), val, attr.Row(), attr.Column(), fname);
+		return true;
 	}
 	return cControl::parseAttribute(attr, tagName, fname);
 }
@@ -120,6 +126,7 @@ void cTextMsg::draw(){
 		TextStyle style;
 		style.font = textFont;
 		style.pointSize = textSize;
+		style.underline = underlined;
 		drawFrame(2, frameStyle);
 		sf::Color draw_color = color;
 		if(depressed){

src/dialogxml/widgets/message.hpp

@@ -52,5 +52,6 @@ private:
 	sf::Color color;
 	std::vector<boost::optional<std::string>> keyRefs;
 	std::string fromList;
+	bool underlined = false;
 };
 #endif

src/doxy/mainpage.md

@@ -90,6 +90,7 @@ The `<text>` tag accepts the following attributes:
 
 * `framed` - See **Common Attributes** above. Defaults to `false`.
 * `outline` - See **Common Attributes** above.
+* `underline` - If true, the text will be underlined.
 * `fromlist`, `font`, `size`, `color`, `colour`, `def-key` -
 See **Common Attributes** above.