Add support for the txtt font (#4979)

development/FORMAT

@@ -11,6 +11,10 @@ adjustments are made to tex2lyx and bugs are fixed in lyx2lyx.
 
 -----------------------
 
+2012-08-17 Jürgen Spitzmüller <spitz@lyx.org>
+	* Format incremented to 435 
+	  Support for the txtt LaTeX font.
+
 2012-08-17 Jürgen Spitzmüller <spitz@lyx.org>
 	* Format incremented to 434 
 	  Support for the libertine LaTeX font.

lib/chkconfig.ltx

@@ -364,6 +364,7 @@
 \TestPackage{luximono}
 \TestPackage{tipa}
 \TestPackage{tipx}
+\TestPackage{txfonts}% For the txtt monospaced font
 % necessary to get correct size for InstantPreview images created by dvipng
 \TestPackage[c70fs.fd]{zhmetrics}
 % symbol packakges supported by LyX for items and the special character dialog
@@ -377,7 +378,7 @@
 \TestPackage{wasysym}
 % These packages are disabled in the unicodesymbols file
 % see comment there
-%\TestPackage{txfonts}
+%\TestPackage{txfonts}% But see above!
 %\TestPackage{pxfonts}
 %\TestPackage{mathabx}
 %\TestPackage{mathdesign}

lib/doc/LaTeXConfig.lyx

@@ -1,5 +1,5 @@
 #LyX 2.1 created this file. For more info see http://www.lyx.org/
-\lyxformat 433
+\lyxformat 435
 \begin_document
 \begin_header
 \textclass article
@@ -970,6 +970,35 @@ Symbols
  dialog.
 \end_layout
 
+\begin_layout Subsection
+TX Fonts
+\end_layout
+
+\begin_layout Description
+Found: 
+\begin_inset Info
+type  "package"
+arg   "txfonts"
+\end_inset
+
+
+\end_layout
+
+\begin_layout Description
+CTAN: 
+\family sans
+fonts/txfonts/
+\end_layout
+
+\begin_layout Description
+Notes: The 
+\family sans
+txfonts
+\family default
+ package provides fonts based on Times Roman with math support.
+ In LyX, only the monospaced shape (TXTT) is currently natively supported.
+\end_layout
+
 \begin_layout Section
 Standard LaTeX document classes
 \end_layout

lib/latexfonts

@@ -244,3 +244,10 @@ Font luximono
 	ScaleOption      scaled=$$val
 	Package          luximono
 EndFont
+
+Font txtt
+	GuiName          "TX Typewriter"
+	Family           tt
+	SwitchDefault    1
+	Requires         txfonts
+EndFont

lib/lyx2lyx/lyx_2_1.py

@@ -844,6 +844,17 @@ def revert_libertine(document):
             document.header[j] = "\\font_osf false"
 
 
+def revert_txtt(document):
+    " Revert native txtt font definition to LaTeX " 
+
+    if find_token(document.header, "\\use_non_tex_fonts false", 0) != -1: 
+        i = find_token(document.header, "\\font_typewriter txtt", 0)
+        if i != -1:
+            preamble = "\\renewcommand{\\ttdefault}{txtt}"
+            add_to_preamble(document, [preamble])
+            document.header[i] = "\\font_typewriter default"
+
+
 ##
 # Conversion hub
 #
@@ -870,10 +881,12 @@ convert = [
            [431, [convert_use_amssymb]],
            [432, []],
            [433, [convert_armenian]],
-           [434, []]
+           [434, []],
+           [435, []]
           ]
 
 revert =  [
+           [434, [revert_txtt]],
            [433, [revert_libertine]],
            [432, [revert_armenian]],
            [431, [revert_languages, revert_ancientgreek]],

src/version.h

@@ -30,8 +30,8 @@ extern char const * const lyx_version_info;
 
 // Do not remove the comment below, so we get merge conflict in
 // independent branches. Instead add your own.
-#define LYX_FORMAT_LYX 434 // spitz: support for the libertine font
-#define LYX_FORMAT_TEX2LYX 434 // spitz: support for the libertine font
+#define LYX_FORMAT_LYX 435 // spitz: support for the txtt font
+#define LYX_FORMAT_TEX2LYX 435 // spitz: support for the txtt font
 
 #if LYX_FORMAT_TEX2LYX != LYX_FORMAT_LYX
 #ifndef _MSC_VER