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#ifndef SORTING_H_INCLUDED
#define SORTING_H_INCLUDED
#include "../FreeFileSync.h"
#include "resources.h"
#include "globalFunctions.h"
using namespace FreeFileSync;
enum SideToSort
{
SORT_ON_LEFT,
SORT_ON_RIGHT,
};
template <SideToSort side>
inline
void getDescrLine(const FileCompareLine& a, const FileCompareLine& b, const FileDescrLine*& descrLineA, const FileDescrLine*& descrLineB)
{
if (side == SORT_ON_LEFT)
{
descrLineA = &a.fileDescrLeft;
descrLineB = &b.fileDescrLeft;
}
else if (side == SORT_ON_RIGHT)
{
descrLineA = &a.fileDescrRight;
descrLineB = &b.fileDescrRight;
}
else
assert(false);
}
template <bool sortAscending>
inline
bool stringSmallerThan(const wxChar* stringA, const wxChar* stringB)
{
#ifdef FFS_WIN //case-insensitive comparison!
return sortAscending ?
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 ? *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
int i = 0;
if (lengthA == lengthB)
{
for (i = 0; i < lengthA; ++i)
{
if (stringA[i] != stringB[i])
break;
}
return i == lengthA ? 0 : stringA[i] < stringB[i] ? -1 : 1;
}
else if (lengthA < lengthB)
{
for (i = 0; i < lengthA; ++i)
{
if (stringA[i] != stringB[i])
break;
}
return i == lengthA ? -1 : stringA[i] < stringB[i] ? -1 : 1;
}
else
{
for (i = 0; i < lengthB; ++i)
{
if (stringA[i] != stringB[i])
break;
}
return i == lengthB ? 1 : stringA[i] < stringB[i] ? -1 : 1;
}
#endif
}
template <bool sortAscending, SideToSort side>
inline
bool sortByFileName(const FileCompareLine& a, const FileCompareLine& b)
{
const FileDescrLine* descrLineA = NULL;
const FileDescrLine* descrLineB = NULL;
getDescrLine<side>(a, b, descrLineA, descrLineB);
//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 if (descrLineA->objType == FileDescrLine::TYPE_DIRECTORY)
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.Find(GlobalResources::FILE_NAME_SEPARATOR, true); //start search beginning from end
if (pos != std::string::npos)
stringA += pos + 1;
pos = descrLineB->relativeName.Find(GlobalResources::FILE_NAME_SEPARATOR, true); //start search beginning from end
if (pos != std::string::npos)
stringB += pos + 1;
return stringSmallerThan<sortAscending>(stringA, stringB);
}
}
template <bool sortAscending, SideToSort side>
bool sortByRelativeName(const FileCompareLine& a, const FileCompareLine& b)
{
const FileDescrLine* descrLineA = NULL;
const FileDescrLine* descrLineB = NULL;
getDescrLine<side>(a, b, descrLineA, descrLineB);
//extract relative name and filename
const wxChar* 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.Find(GlobalResources::FILE_NAME_SEPARATOR, true); //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* 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.Find(GlobalResources::FILE_NAME_SEPARATOR, true); //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
int rv = compareString(relStringA, relStringB, relLengthA, relLengthB);
if (rv != 0)
return sortAscending ? (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 ?
compareString(fileStringA, fileStringB, fileLengthA, fileLengthB) < 0 :
compareString(fileStringA, fileStringB, fileLengthA, fileLengthB) > 0;
}
}
template <bool sortAscending, SideToSort side>
inline
bool sortByFileSize(const FileCompareLine& a, const FileCompareLine& b)
{
const FileDescrLine* descrLineA = NULL;
const FileDescrLine* descrLineB = NULL;
getDescrLine<side>(a, b, descrLineA, descrLineB);
//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 if (descrLineA->objType == FileDescrLine::TYPE_DIRECTORY)
return false;
else if (descrLineB->objType == FileDescrLine::TYPE_DIRECTORY)
return true;
else
return sortAscending ?
descrLineA->fileSize < descrLineB->fileSize :
descrLineA->fileSize > descrLineB->fileSize;
}
template <bool sortAscending, SideToSort side>
inline
bool sortByDate(const FileCompareLine& a, const FileCompareLine& b)
{
const FileDescrLine* descrLineA = NULL;
const FileDescrLine* descrLineB = NULL;
getDescrLine<side>(a, b, descrLineA, descrLineB);
//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 if (descrLineA->objType == FileDescrLine::TYPE_DIRECTORY)
return false;
else if (descrLineB->objType == FileDescrLine::TYPE_DIRECTORY)
return true;
else
return sortAscending ?
descrLineA->lastWriteTimeRaw < descrLineB->lastWriteTimeRaw :
descrLineA->lastWriteTimeRaw > descrLineB->lastWriteTimeRaw;
}
template <bool 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 ?
a.cmpResult < b.cmpResult :
a.cmpResult > b.cmpResult;
}
#endif // SORTING_H_INCLUDED
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