Clear out per-line data when all contents removed.

6 files changed, 33 insertions, 1 deletions

diff --git a/src/CellBuffer.cxx b/src/CellBuffer.cxx
index 1db0d7d0a..7134d3188 100644
--- a/src/CellBuffer.cxx
+++ b/src/CellBuffer.cxx
@@ -21,7 +21,7 @@
 using namespace Scintilla;
 #endif
 
-LineVector::LineVector() : starts(256) {
+LineVector::LineVector() : starts(256), perLine(0) {
 	Init();
 }
 
@@ -31,6 +31,9 @@ LineVector::~LineVector() {
 
 void LineVector::Init() {
 	starts.DeleteAll();
+	if (perLine) {
+		perLine->Init();
+	}
 }
 
 void LineVector::SetPerLine(PerLine *pl) {
diff --git a/src/CellBuffer.h b/src/CellBuffer.h
index 5af135736..336dfb4df 100644
--- a/src/CellBuffer.h
+++ b/src/CellBuffer.h
@@ -16,6 +16,7 @@ namespace Scintilla {
 class PerLine {
 public:
 	virtual ~PerLine() {}
+	virtual void Init()=0;
 	virtual void InsertLine(int)=0;
 	virtual void RemoveLine(int)=0;
 };
diff --git a/src/Document.cxx b/src/Document.cxx
index ac37215b2..c71f840b6 100644
--- a/src/Document.cxx
+++ b/src/Document.cxx
@@ -100,6 +100,13 @@ Document::~Document() {
 	regex = 0;
 }
 
+void Document::Init() {
+	for (int j=0; j<ldSize; j++) {
+		if (perLineData[j])
+			perLineData[j]->Init();
+	}
+}
+
 void Document::InsertLine(int line) {
 	for (int j=0; j<ldSize; j++) {
 		if (perLineData[j])
diff --git a/src/Document.h b/src/Document.h
index 6ff6c2d71..19840315c 100644
--- a/src/Document.h
+++ b/src/Document.h
@@ -175,6 +175,7 @@ public:
 	int AddRef();
 	int Release();
 
+	virtual void Init();
 	virtual void InsertLine(int line);
 	virtual void RemoveLine(int line);
 
diff --git a/src/PerLine.cxx b/src/PerLine.cxx
index 466d2fb31..5408c0258 100644
--- a/src/PerLine.cxx
+++ b/src/PerLine.cxx
@@ -125,6 +125,10 @@ void MarkerHandleSet::CombineWith(MarkerHandleSet *other) {
 }
 
 LineMarkers::~LineMarkers() {
+	Init();
+}
+
+void LineMarkers::Init() {
 	for (int line = 0; line < markers.Length(); line++) {
 		delete markers[line];
 		markers[line] = 0;
@@ -227,6 +231,10 @@ void LineMarkers::DeleteMarkFromHandle(int markerHandle) {
 LineLevels::~LineLevels() {
 }
 
+void LineLevels::Init() {
+	levels.DeleteAll();
+}
+
 void LineLevels::InsertLine(int line) {
 	if (levels.Length()) {
 		int level = SC_FOLDLEVELBASE;
@@ -281,6 +289,10 @@ int LineLevels::GetLevel(int line) {
 LineState::~LineState() {
 }
 
+void LineState::Init() {
+	lineStates.DeleteAll();
+}
+
 void LineState::InsertLine(int line) {
 	if (lineStates.Length()) {
 		lineStates.EnsureLength(line);
@@ -339,6 +351,10 @@ LineAnnotation::~LineAnnotation() {
 	ClearAll();
 }
 
+void LineAnnotation::Init() {
+	ClearAll();
+}
+
 void LineAnnotation::InsertLine(int line) {
 	if (annotations.Length()) {
 		annotations.Insert(line, 0);
diff --git a/src/PerLine.h b/src/PerLine.h
index 8f3368b82..ab34c46fe 100644
--- a/src/PerLine.h
+++ b/src/PerLine.h
@@ -49,6 +49,7 @@ public:
 	LineMarkers() : handleCurrent(0) {
 	}
 	virtual ~LineMarkers();
+	virtual void Init();
 	virtual void InsertLine(int line);
 	virtual void RemoveLine(int line);
 
@@ -64,6 +65,7 @@ class LineLevels : public PerLine {
 	SplitVector<int> levels;
 public:
 	virtual ~LineLevels();
+	virtual void Init();
 	virtual void InsertLine(int line);
 	virtual void RemoveLine(int line);
 
@@ -79,6 +81,7 @@ public:
 	LineState() {
 	}
 	virtual ~LineState();
+	virtual void Init();
 	virtual void InsertLine(int line);
 	virtual void RemoveLine(int line);
 
@@ -93,6 +96,7 @@ public:
 	LineAnnotation() {
 	}
 	virtual ~LineAnnotation();
+	virtual void Init();
 	virtual void InsertLine(int line);
 	virtual void RemoveLine(int line);