Fix bug #9131 for stable branch. The real problem lies

elsewhere, but it will require major surgery and, more
importantly, a file format change.

src/BiblioInfo.cpp

@@ -636,7 +636,8 @@ docstring const & BibTeXInfo::getInfo(BibTeXInfo const * const xref,
 
 docstring const BibTeXInfo::getLabel(BibTeXInfo const * const xref,
 	Buffer const & buf, docstring const & format, bool richtext,
-	docstring before, docstring after, docstring dialog, bool next) const
+	docstring const & before, docstring const & after,
+	docstring const & dialog, bool next) const
 {
 	docstring loclabel;
 
@@ -872,10 +873,19 @@ docstring const BiblioInfo::getInfo(docstring const & key,
 }
 
 
-docstring const BiblioInfo::getLabel(vector<docstring> const & keys,
-	Buffer const & buf, string const & style, bool richtext,
-	docstring const & before, docstring const & after, docstring const & dialog) const
+docstring const BiblioInfo::getLabel(vector<docstring> keys,
+	Buffer const & buf, string const & style, bool for_xhtml,
+	size_t max_size, docstring const & before, docstring const & after,
+	docstring const & dialog) const
 {
+	// shorter makes no sense
+	LASSERT(max_size >= 16, max_size = 16);
+
+	// we can't display more than 10 of these, anyway
+	bool const too_many_keys = keys.size() > 10;
+	if (too_many_keys)
+		keys.resize(10);
+
 	CiteEngineType const engine_type = buf.params().citeEngineType();
 	DocumentClass const & dc = buf.params().documentClass();
 	docstring const & format = from_utf8(dc.getCiteFormat(engine_type, style, "cite"));
@@ -897,8 +907,17 @@ docstring const BiblioInfo::getLabel(vector<docstring> const & keys,
 					xrefptr = &(xrefit->second);
 			}
 		}
-		ret = data.getLabel(xrefptr, buf, ret, richtext,
-			before, after, dialog, key+1 != ken);
+		ret = data.getLabel(xrefptr, buf, ret, for_xhtml,
+			before, after, dialog, key + 1 != ken);
+	}
+
+	if (ret.size() > max_size) {
+		ret.resize(max_size - 3);
+		ret += "...";
+	} else if (too_many_keys) {
+		if (ret.size() > max_size - 3)
+			ret.resize(max_size - 3);
+		ret += "...";
 	}
 	return ret;
 }
@@ -915,8 +934,8 @@ bool BiblioInfo::isBibtex(docstring const & key) const
 
 vector<docstring> const BiblioInfo::getCiteStrings(
 	vector<docstring> const & keys, vector<CitationStyle> const & styles,
-	Buffer const & buf, bool richtext, docstring const & before,
-	docstring const & after, docstring const & dialog) const
+	Buffer const & buf, docstring const & before,
+	docstring const & after, docstring const & dialog, size_t max_size) const
 {
 	if (empty())
 		return vector<docstring>();
@@ -925,7 +944,7 @@ vector<docstring> const BiblioInfo::getCiteStrings(
 	vector<docstring> vec(styles.size());
 	for (size_t i = 0; i != vec.size(); ++i) {
 		style = styles[i].cmd;
-		vec[i] = getLabel(keys, buf, style, richtext, before, after, dialog);
+		vec[i] = getLabel(keys, buf, style, false, max_size, before, after, dialog);
 	}
 
 	return vec;

src/BiblioInfo.h

@@ -19,9 +19,9 @@
 
 #include "Citation.h"
 
-#include <vector>
 #include <map>
 #include <set>
+#include <vector>
 
 
 namespace lyx {
@@ -67,7 +67,8 @@ public:
 	/// \return formatted BibTeX data for a citation label
 	docstring const getLabel(BibTeXInfo const * const xref,
 		Buffer const & buf, docstring const & format, bool richtext,
-		docstring before, docstring after, docstring dialog, bool next = false) const;
+		const docstring & before, const docstring & after,
+		const docstring & dialog, bool next = false) const;
 	///
 	const_iterator find(docstring const & f) const { return bimap_.find(f); }
 	///
@@ -202,10 +203,9 @@ public:
 			bool richtext = false) const;
 	/// \return formatted BibTeX data for citation labels.
 	/// Citation labels can have more than one key.
-	docstring const getLabel(std::vector<docstring> const & keys,
-		Buffer const & buf, std::string const & style, bool richtext = false,
-		docstring const & before = docstring(),
-		docstring const & after = docstring(),
+	docstring const getLabel(std::vector<docstring> keys,
+		Buffer const & buf, std::string const & style, bool for_xhtml,
+		size_t max_size, docstring const & before, docstring const & after,
 		docstring const & dialog = docstring()) const;
 	/// Is this a reference from a bibtex database
 	/// or from a bibliography environment?
@@ -214,10 +214,9 @@ public:
 	/// list of keys, using either numerical or author-year style depending
 	/// upon the active engine.
 	std::vector<docstring> const getCiteStrings(std::vector<docstring> const & keys,
-		std::vector<CitationStyle> const & styles, Buffer const & buf, bool richtext = false,
-		docstring const & before = docstring(),
-		docstring const & after = docstring(),
-		docstring const & dialog = docstring()) const;
+		std::vector<CitationStyle> const & styles, Buffer const & buf,
+		docstring const & before, docstring const & after, docstring const & dialog,
+	  size_t max_size) const;
 	/// Collects the cited entries from buf.
 	void collectCitedEntries(Buffer const & buf);
 	/// A list of BibTeX keys cited in the current document, sorted by

src/frontends/qt4/GuiCitation.cpp

@@ -250,7 +250,8 @@ void GuiCitation::updateStyles(BiblioInfo const & bi)
 	if (!selectedLV->selectionModel()->selectedIndexes().empty())
 		curr = selectedLV->selectionModel()->selectedIndexes()[0].row();
 
-	QStringList sty = citationStyles(bi);
+	static const size_t max_length = 80;
+	QStringList sty = citationStyles(bi, max_length);
 
 	if (sty.isEmpty()) {
 		// some error
@@ -587,7 +588,7 @@ void GuiCitation::findKey(BiblioInfo const & bi,
 }
 
 
-QStringList GuiCitation::citationStyles(BiblioInfo const & bi)
+QStringList GuiCitation::citationStyles(BiblioInfo const & bi, size_t max_size)
 {
 	docstring const before = qstring_to_ucs4(textBeforeED->text());
 	docstring const after = qstring_to_ucs4(textAfterED->text());
@@ -595,7 +596,7 @@ QStringList GuiCitation::citationStyles(BiblioInfo const & bi)
 	vector<CitationStyle> styles = citeStyles_;
 	// FIXME: pass a dictionary instead of individual before, after, dialog, etc.
 	vector<docstring> ret = bi.getCiteStrings(keys, styles, documentBuffer(),
-		false, before, after, from_utf8("dialog"));
+		before, after, from_utf8("dialog"), max_size);
 	return to_qstring_list(ret);
 }
 

src/frontends/qt4/GuiCitation.h

@@ -123,7 +123,7 @@ private:
 		);
 
 	/// List of example cite strings
-	QStringList citationStyles(BiblioInfo const & bi);
+	QStringList citationStyles(BiblioInfo const & bi, size_t max_size);
 
 	/// Set the Params variable for the Controller.
 	void apply(int const choice, bool const full, bool const force,

src/frontends/qt4/Menus.cpp

@@ -1554,9 +1554,10 @@ void MenuDefinition::expandCiteStyles(BufferView const * bv)
 	vector<docstring> const keys = getVectorFromString(key);
 
 	vector<CitationStyle> const citeStyleList = buf->params().citeStyles();
+	static const size_t max_length = 40;
 	vector<docstring> citeStrings =
 		buf->masterBibInfo().getCiteStrings(keys, citeStyleList, bv->buffer(),
-		false, before, after, from_utf8("dialog"));
+		before, after, from_utf8("dialog"), max_length);
 
 	vector<docstring>::const_iterator cit = citeStrings.begin();
 	vector<docstring>::const_iterator end = citeStrings.end();

src/insets/InsetCitation.cpp

@@ -33,6 +33,7 @@
 #include "support/lstrings.h"
 
 #include <algorithm>
+#include <climits>
 
 using namespace std;
 using namespace lyx::support;
@@ -273,8 +274,8 @@ docstring InsetCitation::complexLabel(bool for_xhtml) const
 	buffer().params().documentClass().addCiteMacro("!textafter", to_utf8(after));
 	*/
 	docstring label;
-	vector<docstring> const keys = getVectorFromString(key);
-	label = biblist.getLabel(keys, buffer(), cite_type, for_xhtml, before, after);
+	vector<docstring> keys = getVectorFromString(key);
+	label = biblist.getLabel(keys, buffer(), cite_type, for_xhtml, UINT_MAX, before, after);
 	return label;
 }
 

status.21x

@@ -119,7 +119,10 @@ What's new
 - Make selection by mouse drag more reliable in mathed (bug 9074).
 
 - Fix undo with many individual changes (e.g. with replace all)
-  (bug #7079).
+  (bug 7079).
+
+- Fix problem with display of citation information when a whole lot of
+  entries are cited at once (bug 9131).
 
 - Do not spellcheck "code" style in logical markup module.