Debugger: Implement #10671.

- The stack trace view now remembers the last selected frame index for stopped
  threads when switching between them.

src/apps/debugger/user_interface/gui/team_window/StackTraceView.cpp

@@ -1,6 +1,6 @@
 /*
  * Copyright 2009-2012, Ingo Weinhold, [email protected].
- * Copyright 2011-2013, Rene Gollent, [email protected].
+ * Copyright 2011-2014, Rene Gollent, [email protected].
  * Distributed under the terms of the MIT License.
  */
 
@@ -14,6 +14,8 @@
 #include <ControlLook.h>
 #include <Window.h>
 
+#include <AutoDeleter.h>
+
 #include "table/TableColumns.h"
 
 #include "FunctionInstance.h"
@@ -99,6 +101,86 @@ private:
 };
 
 
+// #pragma mark - StackTraceKey
+
+
+struct StackTraceView::StackTraceKey {
+	StackTrace*			stackTrace;
+
+	StackTraceKey(StackTrace* stackTrace)
+		:
+		stackTrace(stackTrace)
+	{
+	}
+
+	uint32 HashValue() const
+	{
+		return (uint32)stackTrace;
+	}
+
+	bool operator==(const StackTraceKey& other) const
+	{
+		return stackTrace == other.stackTrace;
+	}
+};
+
+
+// #pragma mark - StackTraceSelectionEntry
+
+
+struct StackTraceView::StackTraceSelectionEntry : StackTraceKey {
+	StackTraceSelectionEntry* next;
+	int32 selectedFrameIndex;
+
+	StackTraceSelectionEntry(StackTrace* stackTrace)
+		:
+		StackTraceKey(stackTrace),
+		selectedFrameIndex(0)
+	{
+	}
+
+	inline int32 SelectedFrameIndex() const
+	{
+		return selectedFrameIndex;
+	}
+
+	void SetSelectedFrameIndex(int32 index)
+	{
+		selectedFrameIndex = index;
+	}
+};
+
+
+// #pragma mark - StackTraceSelectionEntryHashDefinition
+
+
+struct StackTraceView::StackTraceSelectionEntryHashDefinition {
+	typedef StackTraceKey				KeyType;
+	typedef	StackTraceSelectionEntry	ValueType;
+
+	size_t HashKey(const StackTraceKey& key) const
+	{
+		return key.HashValue();
+	}
+
+	size_t Hash(const StackTraceSelectionEntry* value) const
+	{
+		return value->HashValue();
+	}
+
+	bool Compare(const StackTraceKey& key,
+		const StackTraceSelectionEntry* value) const
+	{
+		return key == *value;
+	}
+
+	StackTraceSelectionEntry*& GetLink(StackTraceSelectionEntry* value) const
+	{
+		return value->next;
+	}
+};
+
+
 // #pragma mark - StackTraceView
 
 
@@ -109,6 +191,7 @@ StackTraceView::StackTraceView(Listener* listener)
 	fFramesTable(NULL),
 	fFramesTableModel(NULL),
 	fTraceClearPending(false),
+	fSelectionInfoTable(NULL),
 	fListener(listener)
 {
 	SetName("Stack Trace");
@@ -120,6 +203,7 @@ StackTraceView::~StackTraceView()
 	SetStackTrace(NULL);
 	fFramesTable->SetTableModel(NULL);
 	delete fFramesTableModel;
+	delete fSelectionInfoTable;
 }
 
 
@@ -169,12 +253,25 @@ void
 StackTraceView::SetStackFrame(StackFrame* stackFrame)
 {
 	if (fStackTrace != NULL && stackFrame != NULL) {
-		for (int32 i = 0; StackFrame* other = fStackTrace->FrameAt(i); i++) {
+		int32 selectedIndex = -1;
-			if (stackFrame == other) {
+		StackTraceSelectionEntry* entry = fSelectionInfoTable->Lookup(
-				fFramesTable->SelectRow(i, false);
+			fStackTrace);
-				return;
+		if (entry != NULL)
+			selectedIndex = entry->SelectedFrameIndex();
+		else {
+			for (int32 i = 0; StackFrame* other = fStackTrace->FrameAt(i);
+				i++) {
+				if (stackFrame == other) {
+					selectedIndex = i;
+					break;
+				}
 			}
 		}
+
+		if (selectedIndex >= 0) {
+			fFramesTable->SelectRow(selectedIndex, false);
+			return;
+		}
 	}
 
 	fFramesTable->DeselectAllRows();
@@ -211,6 +308,11 @@ void
 StackTraceView::SetStackTraceClearPending()
 {
 	fTraceClearPending = true;
+	StackTraceSelectionEntry* entry = fSelectionInfoTable->Lookup(fStackTrace);
+	if (entry != NULL) {
+		fSelectionInfoTable->Remove(entry);
+		delete entry;
+	}
 }
 
 
@@ -220,8 +322,23 @@ StackTraceView::TableSelectionChanged(Table* table)
 	if (fListener == NULL || fTraceClearPending)
 		return;
 
-	StackFrame* frame
+	int32 selectedIndex = table->SelectionModel()->RowAt(0);
-		= fFramesTableModel->FrameAt(table->SelectionModel()->RowAt(0));
+	StackFrame* frame = fFramesTableModel->FrameAt(selectedIndex);
+
+	StackTraceSelectionEntry* entry = fSelectionInfoTable->Lookup(fStackTrace);
+	if (entry == NULL) {
+		entry = new(std::nothrow) StackTraceSelectionEntry(fStackTrace);
+		if (entry == NULL)
+			return;
+
+		ObjectDeleter<StackTraceSelectionEntry> entryDeleter(entry);
+		if (fSelectionInfoTable->Insert(entry) != B_OK)
+			return;
+
+		entryDeleter.Detach();
+	}
+
+	entry->SetSelectedFrameIndex(selectedIndex);
 
 	fListener->StackFrameSelectionChanged(frame);
 }
@@ -230,6 +347,13 @@ StackTraceView::TableSelectionChanged(Table* table)
 void
 StackTraceView::_Init()
 {
+	fSelectionInfoTable = new StackTraceSelectionInfoTable;
+	if (fSelectionInfoTable->Init() != B_OK) {
+		delete fSelectionInfoTable;
+		fSelectionInfoTable = NULL;
+		throw std::bad_alloc();
+	}
+
 	fFramesTable = new Table("stack trace", 0, B_FANCY_BORDER);
 	AddChild(fFramesTable->ToView());
 	fFramesTable->SetSortingEnabled(false);

src/apps/debugger/user_interface/gui/team_window/StackTraceView.h

@@ -1,4 +1,5 @@
 /*
+ * Copyright 2014, Rene Gollent, [email protected].
  * Copyright 2009, Ingo Weinhold, [email protected].
  * Distributed under the terms of the MIT License.
  */
@@ -7,6 +8,8 @@
 
 #include <GroupView.h>
 
+#include <util/OpenHashTable.h>
+
 #include "table/Table.h"
 #include "Team.h"
 
@@ -37,6 +40,12 @@ public:
 
 private:
 			class FramesTableModel;
+			struct StackTraceKey;
+			struct StackTraceSelectionEntry;
+			struct StackTraceSelectionEntryHashDefinition;
+
+			typedef BOpenHashTable<StackTraceSelectionEntryHashDefinition>
+				StackTraceSelectionInfoTable;
 
 private:
 	// TableListener
@@ -49,6 +58,7 @@ private:
 			Table*				fFramesTable;
 			FramesTableModel*	fFramesTableModel;
 			bool				fTraceClearPending;
+			StackTraceSelectionInfoTable* fSelectionInfoTable;
 			Listener*			fListener;
 };