Implement support for classico font package (#13124)

This is only an alternative to the classico font we already support
(uop), hence no file format change.

(cherry picked from commit 360bb1fa7c
amendment from 51f4fc7f67 is included)

lib/chkconfig.ltx

@@ -484,6 +484,7 @@
 \TestPackage{cantarell}
 \TestPackage{ccfonts}
 \TestPackage{Chivo}
+\TestPackage{classico}
 \TestFont[ccr10]{concrete} % required by ccfonts
 \TestFont[eorm10]{ecc} % required by ccfonts
 \TestPackage[ot1ccr.fd]{concmath} % required by ccfonts

lib/doc/LaTeXConfig.lyx

@@ -2443,6 +2443,24 @@ Notes:
  Live the font needs to be installed via the 'getnonfreefonts-sys' utility.
 \end_layout
 
+\begin_deeper
+\begin_layout Standard
+Alternatively,
+ you can also use the 
+\family sans
+classico
+\family default
+ package (installed:
+ 
+\begin_inset Info
+type  "package"
+arg   "classico"
+\end_inset
+
+).
+\end_layout
+
+\end_deeper
 \begin_layout Subsection
 URW Garamond
 \end_layout

lib/latexfonts

@@ -1064,6 +1064,13 @@ Font uop
 	Family           sf
 	SwitchDefault    1
 	Requires         urwclassico
+	AltFonts         classico
+EndFont
+
+AltFont classico
+	GuiName          "URW Classico (Optima)"
+	Family           sf
+	Package          classico
 EndFont
 
 #

src/LaTeXFonts.cpp

@@ -199,7 +199,8 @@ docstring const LaTeXFont::getUsedFont(bool ot1, bool complete, bool nomath, boo
 		 && altfonts_.empty()) {
 			return name_;
 	}
-	else if (!altfonts_.empty()) {
+	// if we haven't somethin up to here, try fallback fonts
+	if (!altfonts_.empty()) {
 		for (auto const & name : altfonts_) {
 			LaTeXFont altf = altFont(name);
 			if (altf.available(ot1, nomath))

src/tex2lyx/Preamble.cpp

@@ -1341,9 +1341,11 @@ void Preamble::handle_package(Parser &p, string const & name,
 		options.clear();
 	}
 
-	if (name == "PTSans") {
+	if (name == "PTSans")
 		h_font_sans[0] = "PTSans-TLF";
-	}
+
+	if (name == "classico")
+		h_font_sans[0] = "uop";
 
 	if (name == "FiraSans") {
 		h_font_sans_osf = "true";

status.24x

@@ -15,6 +15,8 @@ What's new
 
 * DOCUMENT INPUT/OUTPUT
 
+- The "URW Classico (Optima)" TeX fonts are now also supported via
+  the classico LaTeX package (bug 13124).
 
 
 * MISCELLANEOUS