uses references instead of returning vectors

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@4840 a592a061-630c-0410-9148-cb99ea01b6c8

src/mathed/formula.C

@@ -249,7 +249,9 @@ void InsetFormula::draw(BufferView * bv, LyXFont const & font,
 
 vector<string> const InsetFormula::getLabelList() const
 {
-	return par()->getLabelList();
+	vector<string> res;
+	par()->getLabelList(res);
+	return res;
 }
 
 

src/mathed/math_gridinset.C

@@ -810,18 +810,15 @@ MathGridInset::RowInfo & MathGridInset::rowinfo(row_type row)
 }
 
 
-vector<MathInset::idx_type>
-	MathGridInset::idxBetween(idx_type from, idx_type to) const
+bool MathGridInset::idxBetween(idx_type idx, idx_type from, idx_type to) const
 {
-	row_type r1 = min(row(from), row(to));
-	row_type r2 = max(row(from), row(to));
-	col_type c1 = min(col(from), col(to));
-	col_type c2 = max(col(from), col(to));
-	vector<idx_type> res;
-	for (row_type i = r1; i <= r2; ++i)
-		for (col_type j = c1; j <= c2; ++j)
-			res.push_back(index(i, j));
-	return res;
+	row_type const ri = row(idx);
+	row_type const r1 = min(row(from), row(to));
+	row_type const r2 = max(row(from), row(to));
+	col_type const ci = col(idx);
+	col_type const c1 = min(col(from), col(to));
+	col_type const c2 = max(col(from), col(to));
+	return r1 <= ri && ri <= r2 && c1 <= ci && ci <= c2;
 }
 
 

src/mathed/math_gridinset.h

@@ -176,7 +176,7 @@ public:
 	///
 	idx_type index(row_type r, col_type c) const;
 	///
-	std::vector<idx_type> idxBetween(idx_type from, idx_type to) const;
+	bool idxBetween(idx_type idx, idx_type from, idx_type to) const;
 	///
 	virtual int defaultColSpace(col_type) { return 0; }
 	///

src/mathed/math_hullinset.C

@@ -281,13 +281,11 @@ bool MathHullInset::display() const
 }
 
 
-vector<string> MathHullInset::getLabelList() const
+void MathHullInset::getLabelList(std::vector<string> & labels) const
 {
-	vector<string> res;
 	for (row_type row = 0; row < nrows(); ++row)
 		if (!label_[row].empty() && nonum_[row] != 1)
-			res.push_back(label_[row]);
-	return res;
+			labels.push_back(label_[row]);
 }
 
 

src/mathed/math_hullinset.h

@@ -47,7 +47,7 @@ public:
 	///
 	bool ams() const;
 	///
-	std::vector<string> getLabelList() const;
+	void getLabelList(std::vector<string> &) const;
 	///
 	void validate(LaTeXFeatures & features) const;
 	/// identifies MatrixInsets

src/mathed/math_inset.C

@@ -198,17 +198,9 @@ void MathInset::dump() const
 }
 
 
-void MathInset::validate(LaTeXFeatures &) const
-{}
-
-
-vector<MathInset::idx_type>
-	MathInset::idxBetween(idx_type from, idx_type to) const
+bool MathInset::idxBetween(idx_type idx, idx_type from, idx_type to) const
 {
-	vector<idx_type> res;
-	for (idx_type i = from; i <= to; ++i)
-		res.push_back(i);
-	return res;
+	return from <= idx && idx <= to;
 }
 
 
@@ -306,12 +298,6 @@ int MathInset::dispatch(string const &, idx_type, pos_type)
 }
 
 
-std::vector<string> MathInset::getLabelList() const
-{
-	return std::vector<string>();
-}
-
-
 string const & MathInset::getType() const
 {
 	static string t("none");

src/mathed/math_inset.h

@@ -161,7 +161,7 @@ public:
 	virtual void idxGlue(idx_type) {}
 	// returns list of cell indices that are "between" from and to for
 	// selection purposes
-	virtual std::vector<idx_type> idxBetween(idx_type from, idx_type to) const;
+	virtual bool idxBetween(idx_type idx, idx_type from, idx_type to) const;
 
 	/// the number of nested cells this inset owns
 	virtual idx_type nargs() const;
@@ -239,7 +239,7 @@ public:
 	virtual void edit(BufferView *, int, int, mouse_button::state) {}
 
 	/// request "external features"
-	virtual void validate(LaTeXFeatures & features) const;
+	virtual void validate(LaTeXFeatures &) const {}
 	/// char char code if possible
 	virtual void handleFont(string const &) {}
 	/// is this inset equal to a given other inset?
@@ -282,7 +282,8 @@ public:
 	virtual int dispatch(string const & cmd, idx_type idx, pos_type pos);
 
 	/// LyXInset stuff
-	virtual std::vector<string> getLabelList() const;
+	/// write labels into a list
+	virtual void getLabelList(std::vector<string> &) const {}
 	/// LyXInset stuff
 	virtual bool numberedType() const { return false; }
 	/// hull type

src/mathed/math_nestinset.C

@@ -192,9 +192,9 @@ void MathNestInset::drawSelection(MathPainterInfo & pi,
 		int y2 = c.yo() + c.descent();
 		pi.pain.fillRectangle(x1, y1, x2 - x1, y2 - y1, LColor::selection);
 	} else {
-		vector<MathInset::idx_type> indices = idxBetween(idx1, idx2);
-		for (unsigned i = 0; i < indices.size(); ++i) {
-			MathXArray const & c = xcell(indices[i]);
+		for (idx_type i = 0; i < nargs(); ++i) {
+			if (idxBetween(i, idx1, idx2)) {
+				MathXArray const & c = xcell(i);
 				int x1 = c.xo();
 				int y1 = c.yo() - c.ascent();
 				int x2 = c.xo() + c.width();
@@ -203,6 +203,7 @@ void MathNestInset::drawSelection(MathPainterInfo & pi,
 			}
 		}
 	}
+}
 
 
 void MathNestInset::drawMarkers(MathPainterInfo & pi, int x, int y) const