1 files changed, 109 insertions, 0 deletions
diff --git a/tdecachegrind/tdecachegrind/stackbrowser.h b/tdecachegrind/tdecachegrind/stackbrowser.h
new file mode 100644
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+++ b/tdecachegrind/tdecachegrind/stackbrowser.h
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+/* This file is part of KCachegrind.
+   Copyright (C) 2003 Josef Weidendorfer <Josef.Weidendorfer@gmx.de>
+
+   KCachegrind is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public
+   License as published by the Free Software Foundation, version 2.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; see the file COPYING.  If not, write to
+   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301, USA.
+*/
+
+#ifndef STACKBROWSER_H
+#define STACKBROWSER_H
+
+#include "tracedata.h"
+
+// A history of selected functions within stacks
+
+class Stack
+{
+public:
+  Stack(TraceFunction*);
+
+  // extend the stack at top/bottom if possible
+  bool contains(TraceFunction*);
+
+  void extendBottom();
+  void extendTop();
+
+  // search for a function on stack calling specified function.
+  // if found, return upper part with new function call
+  Stack* split(TraceFunction*);
+
+  // increment reference count
+  void ref() { _refCount++; }
+  // decrement reference count
+  bool deref() { return --_refCount; }
+  int refCount() { return _refCount; }
+
+  TraceFunction* top() { return _top; }
+  TraceCallList calls() { return _calls; }
+  TraceFunction* caller(TraceFunction*, bool extend);
+  TraceFunction* called(TraceFunction*, bool extend);
+
+  TQString toString();
+
+private:
+  Stack(TraceFunction* top, TraceCallList list);
+
+  // at the top of the stack we have a function...
+  TraceFunction* _top;
+  // list ordered from top to bottom
+  TraceCallList _calls;
+  int _refCount;
+};
+
+class HistoryItem
+{
+public:
+  HistoryItem(Stack*, TraceFunction*);
+  ~HistoryItem();
+
+  Stack* stack() { return _stack; }
+  TraceFunction* function() { return _function; }
+  HistoryItem* last() { return _last; }
+  HistoryItem* next() { return _next; }
+  void setLast(HistoryItem* h) { _last = h; }
+  void setNext(HistoryItem* h) { _next = h; }
+
+private:
+
+  HistoryItem *_last, *_next;
+  Stack* _stack;
+  TraceFunction* _function;
+};
+
+
+class StackBrowser
+{
+public:
+  StackBrowser();
+  ~StackBrowser();
+
+  // A function was selected. This creates a new history entry
+  HistoryItem* select(TraceFunction*);
+
+  HistoryItem* current() { return _current; }
+  bool canGoBack();
+  bool canGoForward();
+  bool canGoUp();
+  bool canGoDown();
+  HistoryItem* goBack();
+  HistoryItem* goForward();
+  HistoryItem* goUp();
+  HistoryItem* goDown();
+
+private:
+  HistoryItem* _current;
+};
+
+
+#endif