Backport: Add SC_DOCUMENTOPTION_TEXT_LARGE option for documents larger than 2 GigaBytes.

This option is provisional and experimental.

Backport of changesets 6696:9729ff36c5b1 and 6723:cffe824ab55e. Also added
'#include <cstddef>' to top of src/RESearch.cxx to fix 32-bit build error.

1 files changed, 14 insertions, 2 deletions

diff --git a/src/CellBuffer.cxx b/src/CellBuffer.cxx
index b1836b924..41dd36b56 100644
--- a/src/CellBuffer.cxx
+++ b/src/CellBuffer.cxx
@@ -364,12 +364,16 @@ void UndoHistory::CompletedRedoStep() {
 	currentAction++;
 }
 
-CellBuffer::CellBuffer(bool hasStyles_) :
-	hasStyles(hasStyles_) {
+CellBuffer::CellBuffer(bool hasStyles_, bool largeDocument_) :
+	hasStyles(hasStyles_), largeDocument(largeDocument_) {
 	readOnly = false;
 	utf8LineEnds = 0;
 	collectingUndo = true;
 	plv = std::unique_ptr<LineVector<Sci::Position>>(new LineVector<Sci::Position>());
+	if (largeDocument)
+		plv = std::unique_ptr<LineVector<Sci::Position>>(new LineVector<Sci::Position>());
+	else
+		plv = std::unique_ptr<LineVector<int>>(new LineVector<int>());
 }
 
 CellBuffer::~CellBuffer() {
@@ -556,6 +560,14 @@ void CellBuffer::SetReadOnly(bool set) {
 	readOnly = set;
 }
 
+bool CellBuffer::IsLarge() const {
+	return largeDocument;
+}
+
+bool CellBuffer::HasStyles() const {
+	return hasStyles;
+}
+
 void CellBuffer::SetSavePoint() {
 	uh.SetSavePoint();
 }