Sort labels in RSS Downloader dialog, closes #3140.

This commit is contained in:
Chocobo1 2015-06-20 15:06:49 +08:00
parent 65d3ca8c3f
commit cf91685f6f
3 changed files with 101 additions and 6 deletions

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@ -45,7 +45,7 @@ std::string Utils::String::toStdString(const QString &str)
} }
// uses lessThan comparison // uses lessThan comparison
bool Utils::String::naturalSort(QString left, QString right, bool &result) bool Utils::String::naturalSort(const QString &left, const QString &right, bool &result)
{ {
// Return value indicates if functions was successful // Return value indicates if functions was successful
// result argument will contain actual comparison result if function was successful // result argument will contain actual comparison result if function was successful
@ -106,6 +106,83 @@ bool Utils::String::naturalSort(QString left, QString right, bool &result)
return false; return false;
} }
Utils::String::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 Utils::String::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 Utils::String::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;
}
// to send numbers instead of strings with suffixes // to send numbers instead of strings with suffixes
QString Utils::String::fromDouble(double n, int precision) QString Utils::String::fromDouble(double n, int precision)
{ {

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@ -31,6 +31,10 @@
#define UTILS_STRING_H #define UTILS_STRING_H
#include <string> #include <string>
#include <QtGlobal>
#if (QT_VERSION >= QT_VERSION_CHECK(5, 2, 0))
#include <QCollator>
#endif
class QString; class QString;
class QByteArray; class QByteArray;
@ -41,12 +45,25 @@ namespace Utils
{ {
QString fromStdString(const std::string &str); QString fromStdString(const std::string &str);
std::string toStdString(const QString &str); std::string toStdString(const QString &str);
bool naturalSort(QString left, QString right, bool &result);
QString fromDouble(double n, int precision); QString fromDouble(double n, int precision);
// Implements constant-time comparison to protect against timing attacks // Implements constant-time comparison to protect against timing attacks
// Taken from https://crackstation.net/hashing-security.htm // Taken from https://crackstation.net/hashing-security.htm
bool slowEquals(const QByteArray &a, const QByteArray &b); bool slowEquals(const QByteArray &a, const QByteArray &b);
bool naturalSort(const QString &left, const QString &right, bool &result);
class NaturalCompare
{
public:
NaturalCompare();
bool operator()(const QString &l, const QString &r);
bool lessThan(const QString &left, const QString &right);
#if (QT_VERSION >= QT_VERSION_CHECK(5, 2, 0))
private:
QCollator m_collator;
#endif
};
} }
} }

View File

@ -43,6 +43,7 @@
#include "guiiconprovider.h" #include "guiiconprovider.h"
#include "autoexpandabledialog.h" #include "autoexpandabledialog.h"
#include "core/utils/fs.h" #include "core/utils/fs.h"
#include "core/utils/string.h"
AutomatedRssDownloader::AutomatedRssDownloader(const QWeakPointer<RssManager>& manager, QWidget *parent) : AutomatedRssDownloader::AutomatedRssDownloader(const QWeakPointer<RssManager>& manager, QWidget *parent) :
QDialog(parent), QDialog(parent),
@ -308,10 +309,10 @@ RssDownloadRulePtr AutomatedRssDownloader::getCurrentRule() const
void AutomatedRssDownloader::initLabelCombobox() void AutomatedRssDownloader::initLabelCombobox()
{ {
// Load custom labels // Load custom labels
const QStringList customLabels = Preferences::instance()->getTorrentLabels(); QStringList customLabels = Preferences::instance()->getTorrentLabels();
foreach (const QString& label, customLabels) { std::sort(customLabels.begin(), customLabels.end(), Utils::String::NaturalCompare());
ui->comboLabel->addItem(label); foreach (const QString& l, customLabels)
} ui->comboLabel->addItem(l);
} }
void AutomatedRssDownloader::saveEditedRule() void AutomatedRssDownloader::saveEditedRule()