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Merge pull request #3230 from Chocobo1/rss_sort_v320

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Sort labels in RSS Downloader dialog
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sledgehammer999
2015-10-04 03:18:22 -05:00
parent bbcfa5aae7 176dd0bee8
commit 81912736ed
3 changed files with 99 additions and 6 deletions
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79
src/core/misc.cpp
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@@ -598,7 +598,7 @@ QString misc::toQString(time_t t, Qt::DateFormat f)
}
#ifndef DISABLE_GUI
bool misc::naturalSort(QString left, QString right, bool &result) // uses lessThan comparison
bool misc::naturalSort(const QString &left, const QString &right, bool &result) // uses lessThan comparison
{ // Return value indicates if functions was successful
// result argument will contain actual comparison result if function was successful
int posL = 0;
@@ -657,6 +657,83 @@ bool misc::naturalSort(QString left, QString right, bool &result) // uses less
return false;
}
misc::NaturalCompare::NaturalCompare()
{
#if (QT_VERSION >= QT_VERSION_CHECK(5, 2, 0))
#if defined(Q_OS_WIN)
// Without ICU library, QCollator doesn't support `setNumericMode(true)` on OS older than Win7
if(SysInfo::windowsVersion() < QSysInfo::WV_WINDOWS7)
return;
#endif
m_collator.setNumericMode(true);
m_collator.setCaseSensitivity(Qt::CaseInsensitive);
#endif
}
bool misc::NaturalCompare::operator()(const QString &l, const QString &r)
{
#if (QT_VERSION >= QT_VERSION_CHECK(5, 2, 0))
#if defined(Q_OS_WIN)
// Without ICU library, QCollator doesn't support `setNumericMode(true)` on OS older than Win7
if(SysInfo::windowsVersion() < QSysInfo::WV_WINDOWS7)
return lessThan(l, r);
#endif
return (m_collator.compare(l, r) < 0);
#else
return lessThan(l, r);
#endif
}
bool misc::NaturalCompare::lessThan(const QString &left, const QString &right)
{
// Return value `false` indicates `right` should go before `left`, otherwise, after
int posL = 0;
int posR = 0;
while (true) {
while (true) {
if (posL == left.size() || posR == right.size())
return (left.size() < right.size()); // when a shorter string is another string's prefix, shorter string place before longer string
QChar leftChar = left[posL].toLower();
QChar rightChar = right[posR].toLower();
if (leftChar == rightChar)
; // compare next character
else if (leftChar.isDigit() && rightChar.isDigit())
break; // Both are digits, break this loop and compare numbers
else
return leftChar < rightChar;
++posL;
++posR;
}
int startL = posL;
while ((posL < left.size()) && left[posL].isDigit())
++posL;
#if QT_VERSION >= QT_VERSION_CHECK(5, 1, 0)
int numL = left.midRef(startL, posL - startL).toInt();
#else
int numL = left.mid(startL, posL - startL).toInt();
#endif
int startR = posR;
while ((posR < right.size()) && right[posR].isDigit())
++posR;
#if QT_VERSION >= QT_VERSION_CHECK(5, 1, 0)
int numR = right.midRef(startR, posR - startR).toInt();
#else
int numR = right.mid(startR, posR - startR).toInt();
#endif
if (numL != numR)
return (numL < numR);
// Strings + digits do match and we haven't hit string end
// Do another round
}
return false;
}
#endif
// to send numbers instead of strings with suffixes