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#ifndef SORTING_H_INCLUDED
#define SORTING_H_INCLUDED
#include "../FreeFileSync.h"
#include "resources.h"
enum SideToSort
{
SORT_ON_LEFT,
SORT_ON_RIGHT,
};
template <bool sortAscending>
inline
bool cmpString(const wxString& a, const wxString& b)
{
if (a.IsEmpty())
return false; //if a and b are empty: false, if a empty, b not empty: also false, since empty rows should appear at the end
else if (b.IsEmpty())
return true; //empty rows after filled rows: return true
//if a and b not empty:
if (sortAscending)
return (a < b);
else
return (a > b);
}
template <bool sortAscending>
inline
bool cmpLargeInt(const wxULongLong& a, const wxULongLong& b)
{
if (sortAscending)
return (a < b);
else
return (a > b);
}
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);
}
inline
wxChar formatChar(const wxChar& c)
{
return c;
//return wxTolower(c); <- this is slow as hell! sorting slower by factor 10
}
inline
int compareString(const wxChar* stringA, const wxChar* stringB, const int lengthA, const int lengthB)
{
int i = 0;
if (lengthA == lengthB)
{
for (i = 0; i < lengthA; ++i)
{
if (formatChar(stringA[i]) != formatChar(stringB[i]))
break;
}
return i == lengthA ? 0 : formatChar(stringA[i]) < formatChar(stringB[i]) ? -1 : 1;
}
else if (lengthA < lengthB)
{
for (i = 0; i < lengthA; ++i)
{
if (formatChar(stringA[i]) != formatChar(stringB[i]))
break;
}
return i == lengthA ? -1 : formatChar(stringA[i]) < formatChar(stringB[i]) ? -1 : 1;
}
else
{
for (i = 0; i < lengthB; ++i)
{
if (formatChar(stringA[i]) != formatChar(stringB[i]))
break;
}
return i == lengthB ? 1 : formatChar(stringA[i]) < formatChar(stringB[i]) ? -1 : 1;
}
}
template <bool sortAscending, SideToSort side>
inline
bool sortByFileName(const FileCompareLine& a, const FileCompareLine& b)
{
const FileDescrLine* descrLineA;
const FileDescrLine* descrLineB;
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 = NULL;
const wxChar* stringB = NULL;
int lenghtA = 0;
int lenghtB = 0;
int pos = descrLineA->relativeName.Find(GlobalResources::fileNameSeparator, true); //start search beginning from end
if (pos == wxNOT_FOUND)
{
stringA = descrLineA->relativeName.c_str();
lenghtA = descrLineA->relativeName.Len();
}
else
{
stringA = descrLineA->relativeName.c_str() + pos + 1;
lenghtA = descrLineA->relativeName.Len() - (pos + 1);
}
pos = descrLineB->relativeName.Find(GlobalResources::fileNameSeparator, true); //start search beginning from end
if (pos == wxNOT_FOUND)
{
stringB = descrLineB->relativeName.c_str();
lenghtB = descrLineB->relativeName.Len();
}
else
{
stringB = descrLineB->relativeName.c_str() + pos + 1;
lenghtB = descrLineB->relativeName.Len() - (pos + 1);
}
int rv = compareString(stringA, stringB, lenghtA, lenghtB);
return sortAscending ? (rv == -1) : (rv != -1);
}
}
template <bool sortAscending, SideToSort side>
inline
bool sortByRelativeName(const FileCompareLine& a, const FileCompareLine& b)
{
const FileDescrLine* descrLineA;
const FileDescrLine* descrLineB;
getDescrLine<side>(a, b, descrLineA, descrLineB);
//extract relative name and filename
const wxChar* relStringA = NULL;
const wxChar* fileStringA = NULL;
int relLenghtA = 0;
int fileLengthA = 0;
if (descrLineA->objType == FileDescrLine::TYPE_DIRECTORY)
{
relStringA = descrLineA->relativeName.c_str();
relLenghtA = descrLineA->relativeName.Len();
}
else if (descrLineA->objType == FileDescrLine::TYPE_FILE)
{
relLenghtA = descrLineA->relativeName.Find(GlobalResources::fileNameSeparator, true); //start search beginning from end
if (relLenghtA == wxNOT_FOUND)
{
relLenghtA = 0;
fileStringA = descrLineA->relativeName.c_str();
fileLengthA = descrLineA->relativeName.Len();
}
else
{
relStringA = descrLineA->relativeName.c_str();
fileStringA = descrLineA->relativeName.c_str() + relLenghtA + 1;
fileLengthA = descrLineA->relativeName.Len() - (relLenghtA + 1);
}
}
else
return false; //empty rows should be on end of list
const wxChar* relStringB = NULL;
const wxChar* fileStringB = NULL;
int relLenghtB = 0;
int fileLengthB = 0;
if (descrLineB->objType == FileDescrLine::TYPE_DIRECTORY)
{
relStringB = descrLineB->relativeName.c_str();
relLenghtB = descrLineB->relativeName.Len();
}
else if (descrLineB->objType == FileDescrLine::TYPE_FILE)
{
relLenghtB = descrLineB->relativeName.Find(GlobalResources::fileNameSeparator, true); //start search beginning from end
if (relLenghtB == wxNOT_FOUND)
{
relLenghtB = 0;
fileStringB = descrLineB->relativeName.c_str();
fileLengthB = descrLineB->relativeName.Len();
}
else
{
relStringB = descrLineB->relativeName.c_str();
fileStringB = descrLineB->relativeName.c_str() + relLenghtB + 1;
fileLengthB = descrLineB->relativeName.Len() - (relLenghtB + 1);
}
}
else
return true; //empty rows should be on end of list
//compare relative names without filenames first
int rv = compareString(relStringA, relStringB, relLenghtA, relLenghtB);
if (rv != 0)
return sortAscending ? (rv == -1) : (rv != -1);
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;
rv = compareString(fileStringA, fileStringB, fileLengthA, fileLengthB);
return sortAscending ? (rv == -1) : (rv != -1);
}
}
template <bool sortAscending, SideToSort side>
inline
bool sortByFileSize(const FileCompareLine& a, const FileCompareLine& b)
{
const FileDescrLine* descrLineA;
const FileDescrLine* descrLineB;
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 //use unformatted filesizes and sort by size
return cmpLargeInt<sortAscending>(descrLineA->fileSize, descrLineB->fileSize);
}
template <bool sortAscending, SideToSort side>
inline
bool sortByDate(const FileCompareLine& a, const FileCompareLine& b)
{
const FileDescrLine* descrLineA;
const FileDescrLine* descrLineB;
getDescrLine<side>(a, b, descrLineA, descrLineB);
return cmpString<sortAscending>(descrLineA->lastWriteTime, descrLineB->lastWriteTime);
}
#endif // SORTING_H_INCLUDED
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