bug 809 from Michael, and some small changes to it

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@6932 a592a061-630c-0410-9148-cb99ea01b6c8

lib/chkconfig.ltx

@@ -59,9 +59,9 @@
 %   the variable chk_<name>.  
 %%%
 \newcommand{\prefix}{+} % the character used by grep to filter 'good' output
-\newcommand{\AddLayout}[3][\default]{
+\newcommand{\AddLayout}[4][\default]{
   \def\default{#2}
-  \immediate\write\layouts{"#2"   "#1"   "#3"}}
+  \immediate\write\layouts{"#2"   "#1"   "#3"   "#4"}}
 \newcommand{\AddVariable}[2]{
   \immediate\write\sed{s!@chk_#1@!#2!g}
   \immediate\write\vars{chk_#1='#2'}}
@@ -107,15 +107,17 @@
 }
 \newcommand{\DeclareLaTeXClass}[2][\default]{
   \TestItem[#1]{\layoutname}{document class}{cls}
-           {\AddLayout[\firstelement]{\layoutname}{#2}}{}
+           {\AddLayout[\firstelement]{\layoutname}{#2}{true}}
+           {\AddLayout[\firstelement]{\layoutname}{#2}{false}}
   \expandafter\endinput
 }
 \newcommand{\DeclareLinuxDocClass}[2][\default]{
   \message{^^J\prefix checking for linuxdoc class \layoutname... }
   \@ifundefined{haslinuxdoc}
-    {\message{no^^J}}
+    {\message{no^^J}  
+     \AddLayout[#1]{\layoutname}{#2}{false}}
     {\message{yes^^J}
-     \AddLayout[#1]{\layoutname}{#2}}
+     \AddLayout[#1]{\layoutname}{#2}{true}}
   \expandafter\endinput
 }
 % Only for compatibility. Will be removed later.
@@ -124,9 +126,10 @@
 \newcommand{\DeclareDocBookClass}[2][\default]{
   \message{^^J\prefix checking for docbook\space\space class \layoutname... }
   \@ifundefined{hasdocbook}
-    {\message{no^^J}}
+    {\message{no^^J}
+     \AddLayout[#1]{\layoutname}{#2}{false}}
     {\message{yes^^J}
-     \AddLayout[#1]{\layoutname}{#2}}
+     \AddLayout[#1]{\layoutname}{#2}{true}}
   \expandafter\endinput
 }
 

src/ChangeLog

@@ -1,3 +1,13 @@
+2003-05-02  Michael Schmitt  <michael.schmitt@teststep.org>
+
+	* bufferparams.C: Output warning if a document with missing
+	TeX document class is loaded
+	* exporter.C: Disable TeX exports if the document class is missing
+	* lyxtextclass.C:
+	* lyxtextclass.h:
+	* lyxtextclasslist.C: Handle new textclass.lst format; new method
+	isTeXClassAvailable()
+  
 2003-05-03  John Levon  <levon@movementarian.org>
 
 	* BufferView.h:

src/bufferparams.C

@@ -22,11 +22,15 @@
 #include "lyxlex.h"
 #include "Lsstream.h"
 #include "author.h"
+#include "gettext.h"
 
 #include "support/lyxalgo.h" // for lyx::count
 #include "support/lyxlib.h"
 #include "support/lstrings.h"
 #include "support/types.h"
+#include "support/BoostFormat.h"
+
+#include "frontends/Alert.h"
 
 #include <cstdlib>
 #include <algorithm>
@@ -92,6 +96,16 @@ string const BufferParams::readToken(LyXLex & lex, string const & token)
 			textclass = 0;
 			return classname;
 		}
+		if (!getLyXTextClass().isTeXClassAvailable()) {
+			string msg =
+#if USE_BOOST_FORMAT
+				boost::io::str(boost::format(_("The document uses a missing TeX class \"%1$s\".\n")) % classname);
+#else
+				_("The document uses a missing TeX class ") + classname + ".\n";
+#endif
+			Alert::warning(_("Document class not available"),
+			               msg + _("LyX will not be able to produce output."));
+		}
 	} else if (token == "\\begin_preamble") {
 		readPreamble(lex);
 	} else if (token == "\\options") {

src/exporter.C

@@ -176,6 +176,7 @@ string const Exporter::BufferFormat(Buffer const * buffer)
 vector<string> const Exporter::Backends(Buffer const * buffer)
 {
 	vector<string> v;
+	if (buffer->params.getLyXTextClass().isTeXClassAvailable())
 		v.push_back(BufferFormat(buffer));
 	v.push_back("text");
 	return v;

src/frontends/qt2/ChangeLog

@@ -1,3 +1,9 @@
+2003-05-02  Michael Schmitt  <michael.schmitt@teststep.org>
+
+	* QDocument.C:
+	* QDocumentDialog.C: Handle document classes with missing TeX class
+	(-> class name prefix: "Unavailable: ")
+
 2003-05-03  John Levon  <levon@movementarian.org>
 
 	* qscreen.h:

src/frontends/qt2/QDocument.C

@@ -26,6 +26,7 @@
 #include "tex-strings.h" // tex_graphics
 #include "support/lstrings.h" // tostr()
 #include "support/filetools.h" // LibFileSearch()
+#include "support/BoostFormat.h"
 #include "lyxtextclasslist.h"
 #include "vspace.h"
 #include "bufferparams.h"
@@ -122,7 +123,17 @@ void QDocument::build_dialog()
 	// layout
 	for (LyXTextClassList::const_iterator cit = textclasslist.begin();
 	     cit != textclasslist.end(); ++cit) {
+		if (cit->isTeXClassAvailable()) {
 			dialog_->latexModule->classCO->insertItem(toqstr(cit->description()));
+                } else {
+			string item =
+#if USE_BOOST_FORMAT
+				boost::io::str(boost::format(_("Unavailable: %1$s")) % cit->description());
+#else
+				_("Unavailable: ") + cit->description();
+#endif
+			dialog_->latexModule->classCO->insertItem(toqstr(item));
+		}
 	}
 
 	for (int n = 0; tex_fonts[n][0]; ++n) {
@@ -499,13 +510,7 @@ void QDocument::update_contents()
 
 
 	// layout
-	for (int n = 0; n<dialog_->latexModule->classCO->count(); ++n) {
+	dialog_->latexModule->classCO->setCurrentItem(params.textclass);
-		if (dialog_->latexModule->classCO->text(n) ==
-		    toqstr(controller().textClass().description())) {
-			dialog_->latexModule->classCO->setCurrentItem(n);
-			break;
-		}
-	}
 
 	dialog_->updateFontsize(controller().textClass().opt_fontsize(),
 				params.fontsize);

src/frontends/qt2/QDocumentDialog.C

@@ -358,13 +358,7 @@ void QDocumentDialog::classChanged()
 					params.pagestyle);
 		}
 	} else {
-		for (int n = 0; n<latexModule->classCO->count(); ++n) {
+		latexModule->classCO->setCurrentItem(params.textclass);
-			if (latexModule->classCO->text(n) ==
-			    toqstr(cntrl.textClass().description())) {
-				latexModule->classCO->setCurrentItem(n);
-				break;
-			}
-		}
 	}
 }
 

src/frontends/xforms/ChangeLog

@@ -1,3 +1,8 @@
+2003-05-02  Michael Schmitt  <michael.schmitt@teststep.org>
+
+	* FormDocument.C: Handle document classes with missing TeX class
+	(-> class name prefix: "Unavailable: ")
+
 2003-05-03  John Levon  <levon@movementarian.org>
 
 	* xscreen.h:

src/frontends/xforms/FormDocument.C

@@ -35,6 +35,7 @@
 
 #include "support/lstrings.h" // contains_functor, getStringFromVector
 #include "support/filetools.h" // LibFileSearch
+#include "support/BoostFormat.h"
 
 #include XPM_H_LOCATION
 #include FORMS_H_LOCATION
@@ -135,7 +136,17 @@ void FormDocument::build()
 	LyXTextClassList::const_iterator tit  = textclasslist.begin();
 	LyXTextClassList::const_iterator tend = textclasslist.end();
 	for (; tit != tend; ++tit) {
+		if (tit->isTeXClassAvailable()) {
 			fl_addto_combox(obj, tit->description().c_str());
+		} else {
+			string item =
+#if USE_BOOST_FORMAT
+				boost::io::str(boost::format(_("Unavailable: %1$s")) % tit->description());
+#else
+				_("Unavailable: ") + tit->description();
+#endif
+			fl_addto_combox(obj, item.c_str());
+		}
 	}
 	fl_set_combox_browser_height(obj, 400);
 

src/lyxtextclass.C

@@ -50,9 +50,9 @@ struct compare_name {
 
 
 LyXTextClass::LyXTextClass(string const & fn, string const & cln,
-			   string const & desc)
+			   string const & desc, bool texClassAvail )
 	: name_(fn), latexname_(cln), description_(desc),
-	  floatlist_(new FloatList), ctrs_(new Counters)
+	  floatlist_(new FloatList), ctrs_(new Counters), texClassAvail_(texClassAvail)
 {
 	outputType_ = LATEX;
 	columns_ = 1;
@@ -71,6 +71,12 @@ LyXTextClass::LyXTextClass(string const & fn, string const & cln,
 }
 
 
+bool LyXTextClass::isTeXClassAvailable() const
+{
+	return texClassAvail_;
+}
+
+
 bool LyXTextClass::do_readStyle(LyXLex & lexrc, LyXLayout & lay)
 {
 	lyxerr[Debug::TCLASS] << "Reading style " << lay.name() << endl;

src/lyxtextclass.h

@@ -35,7 +35,11 @@ public:
 	explicit
 	LyXTextClass(string const & = string(),
 		     string const & = string(),
-		     string const & = string());
+		     string const & = string(),
+		     bool = false);
+
+	/// check whether the TeX class is available
+	bool isTeXClassAvailable() const;
 
 	/// paragraph styles begin iterator.
 	const_iterator begin() const { return layoutlist_.begin(); }
@@ -217,6 +221,9 @@ private:
 
 	/// Has this layout file been loaded yet?
 	mutable bool loaded;
+
+	/// Is the TeX class available?
+	bool texClassAvail_;
 };
 
 

src/lyxtextclasslist.C

@@ -62,10 +62,16 @@ LyXTextClassList::operator[](textclass_type textclass) const
 
 
 // used when sorting the textclass list.
-class less_textclass_desc {
+class less_textclass_avail_desc {
 public:
 	int operator()(LyXTextClass const & tc1, LyXTextClass const & tc2) {
-		return tc1.description() < tc2.description();
+		// Ordering criteria:
+		//   1. Availability of text class
+		//   2. Description (lexicographic)
+
+		return (tc1.isTeXClassAvailable() && !tc2.isTeXClassAvailable()) ||
+		       (tc1.isTeXClassAvailable() == tc2.isTeXClassAvailable() &&
+		        tc1.description() < tc2.description());
 	}
 };
 
@@ -122,9 +128,12 @@ bool LyXTextClassList::Read()
 				if (lex.next()) {
 					string const desc = lex.getString();
 					lyxerr[Debug::TCLASS] << "Desc: " << desc << endl;
+					if (lex.next()) {
+						bool avail = lex.getBool();
+						lyxerr[Debug::TCLASS] << "Avail: " << avail << endl;
 						// This code is run when we have
-					// fname, clname and desc
+						// fname, clname, desc, and avail
-					LyXTextClass tmpl(fname, clname, desc);
+						LyXTextClass tmpl(fname, clname, desc, avail);
 						if (lyxerr.debugging(Debug::TCLASS)) {
 							tmpl.load();
 						}
@@ -133,6 +142,7 @@ bool LyXTextClassList::Read()
 				}
 			}
 		}
+	}
 	lyxerr[Debug::TCLASS] << "End of parsing of textclass.lst" << endl;
 
 	if (classlist_.empty()) {
@@ -141,7 +151,7 @@ bool LyXTextClassList::Read()
 		return false;
 	}
 	// Ok everything loaded ok, now sort the list.
-	sort(classlist_.begin(), classlist_.end(), less_textclass_desc());
+	sort(classlist_.begin(), classlist_.end(), less_textclass_avail_desc());
 	return true;
 }