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#ifndef SORTING_H_INCLUDED
#define SORTING_H_INCLUDED
#include "../structures.h"
#include "../library/resources.h"
#include "../library/globalFunctions.h"
namespace FreeFileSync
{
enum SideToSort
{
SORT_ON_LEFT,
SORT_ON_RIGHT,
};
enum SortDirection
{
ASCENDING,
DESCENDING,
};
template <SortDirection sortAscending>
inline
bool stringSmallerThan(const wxChar* stringA, const wxChar* stringB)
{
#ifdef FFS_WIN //case-insensitive comparison!
return sortAscending == ASCENDING ?
FreeFileSync::compareStringsWin32(stringA, stringB) < 0 : //way faster than wxString::CmpNoCase() in windows build!!!
FreeFileSync::compareStringsWin32(stringA, stringB) > 0;
#else
while (*stringA == *stringB)
{
if (*stringA == wxChar(0)) //strings are equal
return false;
++stringA;
++stringB;
}
return sortAscending == ASCENDING ? *stringA < *stringB : *stringA > *stringB; //wxChar(0) is handled correctly
#endif
}
inline
int compareString(const wxChar* stringA, const wxChar* stringB, const int lengthA, const int lengthB)
{
#ifdef FFS_WIN //case-insensitive comparison!
return FreeFileSync::compareStringsWin32(stringA, stringB, lengthA, lengthB); //way faster than wxString::CmpNoCase() in the windows build!!!
#else
for (int i = 0; i < std::min(lengthA, lengthB); ++i)
{
if (stringA[i] != stringB[i])
return stringA[i] - stringB[i];
}
return lengthA - lengthB;
#endif
}
template <SortDirection sortAscending, SideToSort side>
inline
bool sortByFileName(const FileCompareLine& a, const FileCompareLine& b)
{
const FileDescrLine* const descrLineA = side == SORT_ON_LEFT ? &a.fileDescrLeft : &a.fileDescrRight;
const FileDescrLine* const descrLineB = side == SORT_ON_LEFT ? &b.fileDescrLeft : &b.fileDescrRight;
//presort types: first files, then directories then empty rows
if (descrLineA->objType == FileDescrLine::TYPE_NOTHING)
return false; //empty rows always last
else if (descrLineB->objType == FileDescrLine::TYPE_NOTHING)
return true; //empty rows always last
if (descrLineA->objType == FileDescrLine::TYPE_DIRECTORY) //sort directories by relative name
{
if (descrLineB->objType == FileDescrLine::TYPE_DIRECTORY)
return stringSmallerThan<sortAscending>(descrLineA->relativeName.c_str(), descrLineB->relativeName.c_str());
else
return false;
}
else
{
if (descrLineB->objType == FileDescrLine::TYPE_DIRECTORY)
return true;
else
{
const wxChar* stringA = descrLineA->relativeName.c_str();
const wxChar* stringB = descrLineB->relativeName.c_str();
size_t pos = descrLineA->relativeName.findFromEnd(GlobalResources::FILE_NAME_SEPARATOR); //start search beginning from end
if (pos != std::string::npos)
stringA += pos + 1;
pos = descrLineB->relativeName.findFromEnd(GlobalResources::FILE_NAME_SEPARATOR); //start search beginning from end
if (pos != std::string::npos)
stringB += pos + 1;
return stringSmallerThan<sortAscending>(stringA, stringB);
}
}
}
template <SortDirection sortAscending, SideToSort side>
bool sortByRelativeName(const FileCompareLine& a, const FileCompareLine& b)
{
const FileDescrLine* const descrLineA = side == SORT_ON_LEFT ? &a.fileDescrLeft : &a.fileDescrRight;
const FileDescrLine* const descrLineB = side == SORT_ON_LEFT ? &b.fileDescrLeft : &b.fileDescrRight;
//extract relative name and filename
const wxChar* const relStringA = descrLineA->relativeName.c_str(); //mustn't be NULL for CompareString() API to work correctly
const wxChar* fileStringA = relStringA;
int relLengthA = 0;
int fileLengthA = 0;
if (descrLineA->objType == FileDescrLine::TYPE_DIRECTORY)
relLengthA = descrLineA->relativeName.length();
else if (descrLineA->objType == FileDescrLine::TYPE_FILE)
{
relLengthA = descrLineA->relativeName.findFromEnd(GlobalResources::FILE_NAME_SEPARATOR); //start search beginning from end
if (relLengthA == wxNOT_FOUND)
{
relLengthA = 0;
fileLengthA = descrLineA->relativeName.length();
}
else
{
fileStringA += relLengthA + 1;
fileLengthA = descrLineA->relativeName.length() - (relLengthA + 1);
}
}
else
return false; //empty rows should be on end of list
const wxChar* const relStringB = descrLineB->relativeName.c_str(); //mustn't be NULL for CompareString() API to work correctly
const wxChar* fileStringB = relStringB;
int relLengthB = 0;
int fileLengthB = 0;
if (descrLineB->objType == FileDescrLine::TYPE_DIRECTORY)
relLengthB = descrLineB->relativeName.length();
else if (descrLineB->objType == FileDescrLine::TYPE_FILE)
{
relLengthB = descrLineB->relativeName.findFromEnd(GlobalResources::FILE_NAME_SEPARATOR); //start search beginning from end
if (relLengthB == wxNOT_FOUND)
{
relLengthB = 0;
fileLengthB = descrLineB->relativeName.length();
}
else
{
fileStringB += relLengthB + 1;
fileLengthB = descrLineB->relativeName.length() - (relLengthB + 1);
}
}
else
return true; //empty rows should be on end of list
//compare relative names without filenames first
const int rv = compareString(relStringA, relStringB, relLengthA, relLengthB);
if (rv != 0)
return sortAscending == ASCENDING ? rv < 0 : rv > 0;
else //compare the filenames
{
if (descrLineB->objType == FileDescrLine::TYPE_DIRECTORY) //directories shall appear before files
return false;
else if (descrLineA->objType == FileDescrLine::TYPE_DIRECTORY)
return true;
return sortAscending == ASCENDING ?
compareString(fileStringA, fileStringB, fileLengthA, fileLengthB) < 0 :
compareString(fileStringA, fileStringB, fileLengthA, fileLengthB) > 0;
}
}
template <SortDirection sortAscending, SideToSort side>
inline
bool sortByFullName(const FileCompareLine& a, const FileCompareLine& b)
{
const FileDescrLine* const descrLineA = side == SORT_ON_LEFT ? &a.fileDescrLeft : &a.fileDescrRight;
const FileDescrLine* const descrLineB = side == SORT_ON_LEFT ? &b.fileDescrLeft : &b.fileDescrRight;
//presort types: first files, then directories then empty rows
if (descrLineA->objType == FileDescrLine::TYPE_NOTHING)
return false; //empty rows always last
else if (descrLineB->objType == FileDescrLine::TYPE_NOTHING)
return true; //empty rows always last
else
#ifdef FFS_WIN //case-insensitive comparison!
return sortAscending == ASCENDING ?
FreeFileSync::compareStringsWin32(descrLineA->fullName.c_str(), descrLineB->fullName.c_str()) < 0 : //way faster than wxString::CmpNoCase() in windows build!!!
FreeFileSync::compareStringsWin32(descrLineA->fullName.c_str(), descrLineB->fullName.c_str()) > 0;
#else
return sortAscending == ASCENDING ?
descrLineA->fullName.Cmp(descrLineB->fullName) < 0 :
descrLineA->fullName.Cmp(descrLineB->fullName) > 0;
#endif
}
template <SortDirection sortAscending, SideToSort side>
inline
bool sortByFileSize(const FileCompareLine& a, const FileCompareLine& b)
{
const FileDescrLine* const descrLineA = side == SORT_ON_LEFT ? &a.fileDescrLeft : &a.fileDescrRight;
const FileDescrLine* const descrLineB = side == SORT_ON_LEFT ? &b.fileDescrLeft : &b.fileDescrRight;
//presort types: first files, then directories then empty rows
if (descrLineA->objType == FileDescrLine::TYPE_NOTHING)
return false; //empty rows always last
else if (descrLineB->objType == FileDescrLine::TYPE_NOTHING)
return true; //empty rows always last
if (descrLineA->objType == FileDescrLine::TYPE_DIRECTORY) //sort directories by relative name
{
if (descrLineB->objType == FileDescrLine::TYPE_DIRECTORY)
return stringSmallerThan<sortAscending>(descrLineA->relativeName.c_str(), descrLineB->relativeName.c_str());
else
return false;
}
else
{
if (descrLineB->objType == FileDescrLine::TYPE_DIRECTORY)
return true;
else
return sortAscending == ASCENDING ?
descrLineA->fileSize > descrLineB->fileSize : //sortAscending shall result in list beginning with largest files first
descrLineA->fileSize < descrLineB->fileSize;
}
}
template <SortDirection sortAscending, SideToSort side>
inline
bool sortByDate(const FileCompareLine& a, const FileCompareLine& b)
{
const FileDescrLine* const descrLineA = side == SORT_ON_LEFT ? &a.fileDescrLeft : &a.fileDescrRight;
const FileDescrLine* const descrLineB = side == SORT_ON_LEFT ? &b.fileDescrLeft : &b.fileDescrRight;
//presort types: first files, then directories then empty rows
if (descrLineA->objType == FileDescrLine::TYPE_NOTHING)
return false; //empty rows always last
else if (descrLineB->objType == FileDescrLine::TYPE_NOTHING)
return true; //empty rows always last
if (descrLineA->objType == FileDescrLine::TYPE_DIRECTORY) //sort directories by relative name
{
if (descrLineB->objType == FileDescrLine::TYPE_DIRECTORY)
return stringSmallerThan<sortAscending>(descrLineA->relativeName.c_str(), descrLineB->relativeName.c_str());
else
return false;
}
else
{
if (descrLineB->objType == FileDescrLine::TYPE_DIRECTORY)
return true;
else
return sortAscending == ASCENDING ?
descrLineA->lastWriteTimeRaw > descrLineB->lastWriteTimeRaw :
descrLineA->lastWriteTimeRaw < descrLineB->lastWriteTimeRaw;
}
}
template <SortDirection sortAscending>
inline
bool sortByCmpResult(const FileCompareLine& a, const FileCompareLine& b)
{
//presort result: equal shall appear at end of list
if (a.cmpResult == FILE_EQUAL)
return false;
if (b.cmpResult == FILE_EQUAL)
return true;
return sortAscending == ASCENDING ?
a.cmpResult < b.cmpResult :
a.cmpResult > b.cmpResult;
}
template <SortDirection sortAscending, SideToSort side>
inline
bool sortByDirectory(const FolderCompareLine& a, const FolderCompareLine& b)
{
const Zstring* const dirNameA = side == SORT_ON_LEFT ? &a.syncPair.leftDirectory : &a.syncPair.rightDirectory;
const Zstring* const dirNameB = side == SORT_ON_LEFT ? &b.syncPair.leftDirectory : &b.syncPair.rightDirectory;
#ifdef FFS_WIN //case-insensitive comparison!
return sortAscending == ASCENDING ?
FreeFileSync::compareStringsWin32(dirNameA->c_str(), dirNameB->c_str()) < 0 : //way faster than wxString::CmpNoCase() in windows build!!!
FreeFileSync::compareStringsWin32(dirNameA->c_str(), dirNameB->c_str()) > 0;
#elif defined FFS_LINUX
return sortAscending == ASCENDING ?
dirNameA->Cmp(*dirNameB) < 0 :
dirNameA->Cmp(*dirNameB) > 0;
#endif
}
}
#endif // SORTING_H_INCLUDED
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