more environment infrastructure

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@6501 a592a061-630c-0410-9148-cb99ea01b6c8

lib/layouts/stdlists.inc

@@ -1,3 +1,4 @@
+
 # Standard textclass definition file. Taken from initial LyX source code
 # Author : Matthias Ettrich <ettrich@informatik.uni-tuebingen.de>
 # Transposed by Pascal André <andre@via.ecp.fr>
@@ -112,3 +113,43 @@ Style Bibliography
   AlignPossible		Block, Left
   LabelType		Counter_EnumI
 End
+
+
+#
+# New environments (not active yet)
+#
+#Environment Itemize
+#	LaTeXHeader "\begin{itemize}"
+#	LaTeXFooter "\end{itemize}"
+#  LabelString		*
+#  Margin		Static
+#  LatexType		Item_Environment
+#  NextNoIndent		1
+#  LeftMargin		MMN
+#  LabelSep		xx
+#  ItemSep		0.2
+#  TopSep		0.7
+#  BottomSep		0.7
+#  ParSep		0.3
+#  Align			Block
+#  AlignPossible		Block, Left
+#  LabelType		Static
+#End
+
+#Environment Enumerate
+#  Margin		Static
+#  LatexType		Item_Environment
+#  LatexName		enumerate
+#  NextNoIndent		1
+#  LeftMargin		MMN
+#  LabelSep		xx
+#  ParSkip		0.0
+#  ItemSep		0.2
+#  TopSep		0.7
+#  BottomSep		0.7
+#  ParSep		0.3
+#  Align			Block
+#  AlignPossible		Block, Left
+#  LabelType		Counter_EnumI
+#End
+

src/lyxtextclass.C

@@ -32,13 +32,19 @@ using std::ostream;
 namespace { // anon
 
 struct compare_name {
+
 	compare_name(string const & name)
-		: name_(name) {}
-	template <class C>
-	bool operator()(C & c) {
+		: name_(name)
+	{}
+
+	bool operator()(boost::shared_ptr<LyXLayout> const & c)
+	{
+		//lyxerr << "comparing '" << name_ << "' to '" << c->name() << "'\n";
 		return c->name() == name_;
 	}
+
 	string name_;
+
 };
 
 } // anon
@@ -107,7 +113,8 @@ enum TextClassTags {
 	TC_COUNTER,
 	TC_NOFLOAT,
 	TC_TITLELATEXNAME,
-	TC_TITLELATEXTYPE
+	TC_TITLELATEXTYPE,
+	TC_ENVIRONMENT
 };
 
 // Reads a textclass structure from file.
@@ -201,8 +208,7 @@ bool LyXTextClass::Read(string const & filename, bool merge)
 				string const name = subst(lexrc.getString(),
 						    '_', ' ');
 				if (hasLayout(name)) {
-					LyXLayout * lay =
-						operator[](name).get();
+					LyXLayout * lay = operator[](name).get();
 					error = do_readStyle(lexrc, *lay);
 				} else {
 					LyXLayout lay;
@@ -224,6 +230,29 @@ bool LyXTextClass::Read(string const & filename, bool merge)
 			}
 			break;
 
+		case TC_ENVIRONMENT:
+			if (lexrc.next()) {
+				string const name = subst(lexrc.getString(),
+						    '_', ' ');
+				if (hasLayout(name)) {
+					LyXLayout * lay = operator[](name).get();
+					error = do_readStyle(lexrc, *lay);
+				} else {
+					LyXLayout lay;
+					lay.setName(name);
+					if (!(error = do_readStyle(lexrc, lay)))
+						envlist_.push_back
+							(boost::shared_ptr<LyXLayout>(new LyXLayout(lay)));
+					else
+						lexrc.printError("Problems reading environment: `$$Token'.");
+				}
+			}
+			else {
+				lexrc.printError("No name given for style: `$$Token'.");
+				error = true;
+			}
+			break;
+
 		case TC_NOSTYLE:
 			if (lexrc.next()) {
 				string const style = subst(lexrc.getString(),
@@ -732,7 +761,7 @@ LyXLayout_ptr const & LyXTextClass::operator[](string const & n) const
 	lyx::Assert(!n.empty());
 
 	if (n.empty())
-		lyxerr << "Operator[] called with empty n" << endl;
+		lyxerr << "LyXTextClass::operator[] called with empty n" << endl;
 
 	string const name = (n.empty() ? defaultLayoutName() : n);
 
@@ -763,6 +792,28 @@ LyXLayout_ptr const & LyXTextClass::operator[](string const & n) const
 }
 
 
+LyXLayout_ptr const & LyXTextClass::getEnv(string const & name) const
+{
+	lyx::Assert(!name.empty());
+
+	if (name.empty())
+		lyxerr << "LyXTextClass::getEnv() called with empty n" << endl;
+
+	LayoutList::const_iterator cit =
+		find_if(envlist_.begin(), envlist_.end(), compare_name(name));
+
+	if (cit == envlist_.end()) {
+		lyxerr << "We failed to find the environment '" << name
+		       << "' in the layout list. You MUST investigate!"
+		       << endl;
+		// we require the name to exist
+		lyx::Assert(false);
+	}
+
+	return *cit;
+}
+
+
 bool LyXTextClass::delete_layout(string const & name)
 {
 	if (name == defaultLayoutName())

src/lyxtextclass.h

@@ -61,6 +61,8 @@ public:
 
 	///
 	LyXLayout_ptr const & operator[](string const & vname) const;
+	///
+	LyXLayout_ptr const & getEnv(string const & vname) const;
 
 	/// Sees to that the textclass structure has been loaded
 	bool load() const;
@@ -149,6 +151,8 @@ private:
 	///
 	bool delete_layout(string const &);
 	///
+	bool delete_env(string const &);
+	///
 	bool do_readStyle(LyXLex &, LyXLayout &);
 	/// Layout file name
 	string name_;
@@ -202,6 +206,9 @@ private:
 	/// Paragraph styles used in this layout
 	LayoutList layoutlist_;
 
+	/// Environment styles used in this layout
+	LayoutList envlist_;
+
 	/// available types of float, eg. figure, algorithm.
 	boost::shared_ptr<FloatList> floatlist_;