From 2653011613afaa86a1c964661f1dd815ebfefa7b Mon Sep 17 00:00:00 2001
From: =?utf8?q?J=C3=BCrgen=20Spitzm=C3=BCller?= <spitz@lyx.org>
Date: Tue, 7 Dec 2010 08:36:42 +0000
Subject: [PATCH] * Use default output flavor for View Source.

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@36758 a592a061-630c-0410-9148-cb99ea01b6c8
---
 src/Buffer.cpp                      | 48 ++++++++++++++++++++++++++---
 src/Buffer.h                        | 10 +++++-
 src/frontends/qt4/GuiViewSource.cpp |  3 +-
 3 files changed, 55 insertions(+), 6 deletions(-)

diff --git a/src/Buffer.cpp b/src/Buffer.cpp
index 476d70bcd6..1509b5ba28 100644
--- a/src/Buffer.cpp
+++ b/src/Buffer.cpp
@@ -3072,12 +3072,11 @@ void Buffer::changeRefsIfUnique(docstring const & from, docstring const & to,
 
 
 void Buffer::getSourceCode(odocstream & os, pit_type par_begin,
-	pit_type par_end, bool full_source) const
+	pit_type par_end, bool full_source)
 {
 	OutputParams runparams(&params().encoding());
 	runparams.nice = true;
-	runparams.flavor = params().useNonTeXFonts ? 
-		OutputParams::XETEX : OutputParams::LATEX;
+	runparams.flavor = getDefaultOutputFlavor();
 	runparams.linelen = lyxrc.plaintext_linelen;
 	// No side effect of file copying and image conversion
 	runparams.dryrun = true;
@@ -3089,6 +3088,8 @@ void Buffer::getSourceCode(odocstream & os, pit_type par_begin,
 		d->texrow.newline();
 		if (isDocBook())
 			writeDocBookSource(os, absFileName(), runparams, false);
+		else if (runparams.flavor == OutputParams::HTML)
+			writeLyXHTMLSource(os, runparams, false);
 		else
 			// latex or literate
 			writeLaTeXSource(os, string(), runparams, true, true);
@@ -3113,7 +3114,10 @@ void Buffer::getSourceCode(odocstream & os, pit_type par_begin,
 		// output paragraphs
 		if (isDocBook())
 			docbookParagraphs(text(), *this, os, runparams);
-		else 
+		else if (runparams.flavor == OutputParams::HTML) {
+			XHTMLStream xs(os);
+			xhtmlParagraphs(text(), *this, xs, runparams);
+		} else 
 			// latex or literate
 			latexParagraphs(*this, text(), os, texrow, runparams);
 	}
@@ -3384,6 +3388,42 @@ string Buffer::getDefaultOutputFormat() const
 }
 
 
+OutputParams::FLAVOR Buffer::getDefaultOutputFlavor()
+{
+	string const dformat = getDefaultOutputFormat();
+	DefaultFlavorCache::const_iterator it =
+		default_flavors_.find(dformat);
+
+	if (it != default_flavors_.end())
+		return it->second;
+
+	OutputParams::FLAVOR result = OutputParams::LATEX;
+	
+	if (dformat == "xhtml")
+		result = OutputParams::HTML;
+	else {
+		// Try to determine flavor of default output format
+		vector<string> backs = backends();
+		if (find(backs.begin(), backs.end(), dformat) == backs.end()) {
+			// Get shortest path to format
+			Graph::EdgePath path;
+			for (vector<string>::const_iterator it = backs.begin();
+			    it != backs.end(); ++it) {
+				Graph::EdgePath p = theConverters().getPath(*it, dformat);
+				if (!p.empty() && (path.empty() || p.size() < path.size())) {
+					path = p;
+				}
+			}
+			if (!path.empty())
+				result = theConverters().getFlavor(path);
+		}
+	}
+	// cache this flavor
+	default_flavors_[dformat] = result;
+	return result;
+}
+
+
 namespace {
 	// helper class, to guarantee this gets reset properly
 	class MarkAsExporting	{
diff --git a/src/Buffer.h b/src/Buffer.h
index 3939514031..c9f82068b3 100644
--- a/src/Buffer.h
+++ b/src/Buffer.h
@@ -13,12 +13,14 @@
 #define BUFFER_H
 
 #include "OutputEnums.h"
+#include "OutputParams.h"
 
 #include "insets/InsetCode.h"
 
 #include "support/strfwd.h"
 #include "support/types.h"
 
+#include <map>
 #include <list>
 #include <set>
 #include <string>
@@ -552,7 +554,7 @@ public:
 	/// get source code (latex/docbook) for some paragraphs, or all paragraphs
 	/// including preamble
 	void getSourceCode(odocstream & os, pit_type par_begin, pit_type par_end,
-		bool full_source) const;
+		bool full_source);
 
 	/// Access to error list.
 	/// This method is used only for GUI visualisation of Buffer related
@@ -600,6 +602,8 @@ public:
 	std::string bufferFormat() const;
 	/// return the default output format of the current backend
 	std::string getDefaultOutputFormat() const;
+	/// return the default output flavor
+	OutputParams::FLAVOR getDefaultOutputFlavor();
 
 	///
 	bool doExport(std::string const & format, bool put_in_tempdir,
@@ -662,6 +666,10 @@ private:
 	void setFileName(support::FileName const & fname);
 	///
 	std::vector<std::string> backends() const;
+	/// A cache for the default flavors
+	typedef std::map<std::string, OutputParams::FLAVOR> DefaultFlavorCache;
+	///
+	DefaultFlavorCache default_flavors_;
 	///
 	void getLanguages(std::set<Language const *> &) const;
 	/// Checks whether any of the referenced bibfiles have changed since the
diff --git a/src/frontends/qt4/GuiViewSource.cpp b/src/frontends/qt4/GuiViewSource.cpp
index a5beae5da6..1bfd7a2919 100644
--- a/src/frontends/qt4/GuiViewSource.cpp
+++ b/src/frontends/qt4/GuiViewSource.cpp
@@ -102,7 +102,8 @@ static bool getContent(BufferView const * view, bool fullSource, QString & qstr)
 	if (par_begin > par_end)
 		swap(par_begin, par_end);
 	odocstringstream ostr;
-	view->buffer().getSourceCode(ostr, par_begin, par_end + 1, fullSource);
+	const_cast<BufferView *>(view)->buffer().getSourceCode(
+		ostr, par_begin, par_end + 1, fullSource);
 	docstring s = ostr.str();
 	static size_t crc = 0;
 	size_t newcrc = crcCheck(s);
-- 
2.39.2