1 files changed, 239 insertions, 0 deletions
diff --git a/shared/global_func.h b/shared/global_func.h
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+++ b/shared/global_func.h
@@ -0,0 +1,239 @@
+// **************************************************************************
+// * This file is part of the FreeFileSync project. It is distributed under *
+// * GNU General Public License: http://www.gnu.org/licenses/gpl.html       *
+// * Copyright (C) 2008-2010 ZenJu (zhnmju123 AT gmx.de)                    *
+// **************************************************************************
+//
+#ifndef GLOBALFUNCTIONS_H_INCLUDED
+#define GLOBALFUNCTIONS_H_INCLUDED
+
+#include <string>
+#include <algorithm>
+#include <vector>
+#include <set>
+#include <wx/string.h>
+#include <wx/longlong.h>
+#include <memory>
+#include <sstream>
+
+class wxStopWatch;
+
+
+namespace common
+{
+//------------------------------------------------
+//      FUNCTIONS
+//------------------------------------------------
+inline
+int round(double d) //little rounding function
+{
+    return static_cast<int>(d < 0 ? d - .5 : d + .5);
+}
+
+template <class T>
+inline
+T abs(const T& d) //absolute value
+{
+    return d < 0 ? -d : d;
+}
+
+
+//number conversion C++ ANSI/wide char versions
+template <class CharType, class T>
+std::basic_string<CharType> numberToString(const T& number); //convert number to string the C++ way
+
+template <class T, class CharType>
+T stringToNumber(const std::basic_string<CharType>& input); //convert number to string the C++ way
+
+//number conversion wxWidgets
+template <class T> wxString numberToString(const T& number);
+template <class T> T stringToNumber(const wxString& input);
+
+
+size_t getDigitCount(size_t number); //count number of digits
+
+//serialization: read/write numbers: int, long, unsigned int ... ect
+template <class T> T readNumber(std::istream& stream);
+template <class T> void writeNumber(std::ostream& stream, T number);
+
+inline
+wxLongLong convertToSigned(const wxULongLong number)
+{
+    return wxLongLong(number.GetHi(), number.GetLo());
+}
+
+
+//Note: the following lines are a performance optimization for deleting elements from a vector: linear runtime at most!
+template <class T>
+void removeRowsFromVector(const std::set<size_t>& rowsToRemove, std::vector<T>& grid);
+
+//enhanced binary search template: returns an iterator
+template <class ForwardIterator, class T, typename Compare>
+ForwardIterator custom_binary_search(ForwardIterator first, ForwardIterator last, const T& value, Compare comp = std::less<T>());
+}
+
+
+//############################################################################
+class Performance
+{
+public:
+    wxDEPRECATED(Performance()); //generate compiler warnings as a reminder to remove code after measurements
+    ~Performance();
+    void showResult();
+
+private:
+    bool resultWasShown;
+    std::auto_ptr<wxStopWatch> timer;
+};
+
+//two macros for quick performance measurements
+#define PERF_START Performance a;
+#define PERF_STOP  a.showResult();
+
+
+//############################################################################
+class wxFile;
+class DebugLog
+{
+public:
+    wxDEPRECATED(DebugLog());
+    ~DebugLog();
+    void write(const wxString& logText);
+
+private:
+    wxString assembleFileName();
+    wxString logfileName;
+    int lineCount;
+    wxFile* logFile; //logFile.close(); <- not needed
+};
+extern DebugLog logDebugInfo;
+wxString getCodeLocation(const wxString file, const int line);
+
+//small macro for writing debug information into a logfile
+#define WRITE_DEBUG_LOG(x) logDebugInfo.write(getCodeLocation(__TFILE__, __LINE__) + x);
+//speed alternative: wxLogDebug(wxT("text")) + DebugView
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+//---------------Inline Implementation---------------------------------------------------
+template <class CharType, class T>
+inline
+std::basic_string<CharType> common::numberToString(const T& number) //convert number to string the C++ way
+{
+    std::basic_ostringstream<CharType> ss;
+    ss << number;
+    return ss.str();
+}
+
+
+template <class T, class CharType>
+inline
+T common::stringToNumber(const std::basic_string<CharType>& input) //convert number to string the C++ way
+{
+    std::basic_istringstream<CharType> ss(input);
+    T number;
+    ss >> number;
+    return number;
+}
+
+
+template <class T>
+inline
+wxString common::numberToString(const T& number)
+{
+    return numberToString<wxChar, T>(number).c_str();
+}
+
+
+template <class T>
+inline
+T common::stringToNumber(const wxString& input)
+{
+    const std::basic_string<wxChar> inputConv(input.c_str());
+    return stringToNumber<T, wxChar>(inputConv);
+}
+
+
+//Note: the following lines are a performance optimization for deleting elements from a vector: linear runtime at most!
+template <class T>
+void common::removeRowsFromVector(const std::set<size_t>& rowsToRemove, std::vector<T>& grid)
+{
+    if (rowsToRemove.empty())
+        return;
+
+    std::set<size_t>::const_iterator rowToSkipIndex = rowsToRemove.begin();
+    size_t rowToSkip = *rowToSkipIndex;
+
+    if (rowToSkip >= grid.size())
+        return;
+
+    typename std::vector<T>::iterator insertPos = grid.begin() + rowToSkip;
+
+    for (size_t i = rowToSkip; i < grid.size(); ++i)
+    {
+        if (i != rowToSkip)
+        {
+            *insertPos = grid[i];
+            ++insertPos;
+        }
+        else
+        {
+            ++rowToSkipIndex;
+            if (rowToSkipIndex != rowsToRemove.end())
+                rowToSkip = *rowToSkipIndex;
+        }
+    }
+    grid.erase(insertPos, grid.end());
+}
+
+
+//enhanced binary search template: returns an iterator
+template <class ForwardIterator, class T, typename Compare>
+inline
+ForwardIterator common::custom_binary_search(ForwardIterator first, ForwardIterator last, const T& value, Compare comp)
+{
+    first = lower_bound(first, last, value, comp);
+    if (first != last && !comp(value, *first))
+        return first;
+    else
+        return last;
+}
+
+
+template <class T>
+inline
+T common::readNumber(std::istream& stream)
+{
+    T result = 0;
+    stream.read(reinterpret_cast<char*>(&result), sizeof(T));
+    return result;
+}
+
+
+template <class T>
+inline
+void common::writeNumber(std::ostream& stream, T number)
+{
+    stream.write(reinterpret_cast<const char*>(&number), sizeof(T));
+}
+
+
+#endif // GLOBALFUNCTIONS_H_INCLUDED