Choice rendering now uses "style.image()" instead of "style.choice_images[value]";

Added script functions for working with multiple choice values;
Added in_context support for filter_rule;
Optimized toUpper/toLower because they are slow on windows (they use thread local storage and mutexes)

git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@427 0fc631ac-6414-0410-93d0-97cfa31319b6

src/data/field/multiple_choice.cpp

@@ -48,6 +48,14 @@ IMPLEMENT_REFLECTION_NAMELESS(MultipleChoiceValue) {
 	REFLECT_BASE(ChoiceValue);
 }
 
+bool MultipleChoiceValue::update(Context& ctx) {
+	String old_value = value();
+	ctx.setVariable(_("last change"), to_script(last_change));
+	ChoiceValue::update(ctx);
+	normalForm();
+	return value() != old_value;
+}
+
 void MultipleChoiceValue::get(vector<String>& out) const {
 	// split the value
 	out.clear();
@@ -66,3 +74,38 @@ void MultipleChoiceValue::get(vector<String>& out) const {
 		}
 	}
 }
+
+void MultipleChoiceValue::normalForm() {
+	String& val = value.mutateDontChangeDefault();
+	// which choices are active?
+	vector<bool> seen(field().choices->lastId());
+	for (size_t pos = 0 ; pos < val.size() ; ) {
+		if (val.GetChar(pos) == _(' ')) {
+			++pos; // ingore whitespace
+		} else {
+			// does this choice match the one asked about?
+			size_t end = val.find_first_of(_(','), pos);
+			if (end == String::npos) end = val.size();
+			// find this choice
+			for (size_t i = 0 ; i < seen.size() ; ++i) {
+				if (is_substr(val, pos, field().choices->choiceName((int)i))) {
+					seen[i] = true;
+					break;
+				}
+			}
+			pos = end + 1;
+		}
+	}
+	// now put them back in the right order
+	val.clear();
+	for (size_t i = 0 ; i < seen.size() ; ++i) {
+		if (seen[i]) {
+			if (!val.empty()) val += _(", ");
+			val += field().choices->choiceName((int)i);
+		}
+	}
+	// empty choice name
+	if (val.empty()) {
+		val = field().empty_choice;
+	}
+}