Qt6 & Qt5 version by RaymiiOrg · Pull Request #100 · oKcerG/SortFilterProxyModel

RaymiiOrg · 2023-07-18T14:31:38Z

This build incorporates fixes from MenloSystems ( @olafmandel ) and compiles under Qt5.15 and Qt6.5 (without warnings). A GitHub Actions file is included to build under Qt5 an Qt6.

I havent ran the tests yet but that could be incorporated into the GitHub actions runner. The project seems dead so i'm unsure of that is worth the effort.

Qt 5.15 deprecated the operator<(QVariant, QVariant). Do get rid of the warning and to prepare for the eventual removal of the operator, implement our own needs in a lessThan() function. The function is based on the description of QSortFilterProxyModel::lessThan(). Fixes oKcerG#77

The PatternSyntax enum had to be removed as QRegularExpression only supports Perl-compatible regular expressions. As QVariant's comparison operators were removed, a simplified comparison is now done as a starting point, but should probably be extended to support more types. Fixes oKcerG#84 Fixes oKcerG#86

cmake: fix c++17 build requirement for msvc

I was getting the following error: /usr/bin/ld: isle/3rdparty/SortFilterProxyModel/CMakeFiles/SortFilterProxyModel.dir/SortFilterProxyModel_autogen/mocs_compilation.cpp.o: relocation R_X86_64_PC32 against symbol `__asan_option_detect_stack_use_after_return' can not be used when making a shared object; recompile with -fPIC And: /home/mitch/dev/bgv/isle/3rdparty/SortFilterProxyModel/qqmlsortfilterproxymodel.cpp:1: error: In included file: "You must build your code with position independent code if Qt was configured with -reduce-relocations. " "Compile your code with -fPIC (and not with -fPIE)." Initially I fixed this with: set(CMAKE_POSITION_INDEPENDENT_CODE ON) but was told the proper solution is to add the missing target_link_libraries.

In Qt5, QVariant has attempted to convert differing types in order to evaluate equality. This has been useful when integrating with QML, so restore that behavior.

The method `QVariant::Type QVariant::type() const` has been deprecated since Qt 6.0. The recommended replacement is `typeId()` or `metaType()`, but these are not available under Qt5. So choose to use `userType()` instead, which is available under both and should cover the use cases as well.

Qt6

Qvariant less than

Fix clazy warnings

Expression role caching

This reverts commit 5176c19, reversing changes made to 33faea0.

Daguerreo · 2023-07-19T08:13:56Z

utils/utils.cpp

+int compareVariants(const QVariant &lhs, const QVariant &rhs)
+{
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0) // qt 5
+    // Do the QString check first because otherwise the canConvert<int> check will get hit for strings.
+    if (static_cast<QMetaType::Type>(lhs.type()) == QMetaType::QString && static_cast<QMetaType::Type>(rhs.type()) == QMetaType::QString) {
+        const auto lhsValue = lhs.toString();
+        const auto rhsValue = rhs.toString();
+        if (lhsValue == rhsValue)
+            return 0;
+        return lhsValue.compare(rhsValue, Qt::CaseInsensitive);
+    } else if (static_cast<QMetaType::Type>(lhs.type()) == QMetaType::Bool && static_cast<QMetaType::Type>(rhs.type()) == QMetaType::Bool) {
+        const auto lhsValue = lhs.toBool();
+        const auto rhsValue = rhs.toBool();
+        if (lhsValue == rhsValue)
+            return 0;
+        // false < true.
+        return !lhsValue ? -1 : 1;
+    } else if (static_cast<QMetaType::Type>(lhs.type()) == QMetaType::QDate && static_cast<QMetaType::Type>(rhs.type()) == QMetaType::QDate) {
+        const auto lhsValue = lhs.toDate();
+        const auto rhsValue = rhs.toDate();
+        if (lhsValue == rhsValue)
+            return 0;
+        return lhsValue < rhsValue ? -1 : 1;
+    } else if (static_cast<QMetaType::Type>(lhs.type()) == QMetaType::QDateTime && static_cast<QMetaType::Type>(rhs.type()) == QMetaType::QDateTime) {
+        const auto lhsValue = lhs.toDateTime();
+        const auto rhsValue = rhs.toDateTime();
+        if (lhsValue == rhsValue)
+            return 0;
+        return lhsValue < rhsValue ? -1 : 1;
+    } else if (static_cast<QMetaType::Type>(lhs.type()) == QMetaType::QStringList && static_cast<QMetaType::Type>(rhs.type()) == QMetaType::QStringList) {
+        const auto lhsValue = lhs.toStringList();
+        const auto rhsValue = rhs.toStringList();
+        if (lhsValue == rhsValue)
+            return 0;
+        return lhsValue < rhsValue ? -1 : 1;
+    } else if (lhs.canConvert<int>() && rhs.canConvert<int>()) {
+        const auto lhsValue = lhs.toInt();
+        const auto rhsValue = rhs.toInt();
+        if (lhsValue == rhsValue)
+            return 0;
+        return lhsValue < rhsValue ? -1 : 1;
+    } else if (lhs.canConvert<qreal>() && rhs.canConvert<qreal>()) {
+        const auto lhsValue = lhs.toReal();
+        const auto rhsValue = rhs.toReal();
+        if (qFuzzyCompare(lhsValue, rhsValue))
+            return 0;
+        return lhsValue < rhsValue ? -1 : 1;
+    }
+
+    qWarning() << "Don't know how to compare" << lhs << "against" << rhs << "- returning 0";
+    return 0;
+#else
+    return QPartialOrdering::Less == QVariant::compare(lhs, rhs);
+#endif
+}


This code as is written is quite hard to read for no real reason. it should need at least

const auto lhsType = static_cast<QMetaType::Type>(lhs.type()); const auto rhsType = static_cast<QMetaType::Type>(rhs.type()); const bool sameType = (lhsType == rhsType);

at the beginning of the function, which would greatly simplify the if statements

srijanc · 2023-10-04T04:59:25Z

@RaymiiOrg I have been using these changes for an ongoing project that I am working on. I came across a well known warning QRegularExpressionPrivate::doMatch(): called on an invalid QRegularExpression object which occurs if the RegExpFilter property pattern contains a special character which has a meaning within a regular expression, in my case ( or ) or [ or ] . The warning is thrown in multiple times and then it stops and the list model fails to produce correct result

Here is a sample code of my RegExpFilter:

                RegExpFilter {
                    roleName: "firstName"
                    pattern: "Aaron Stevens - 123132542 ("
                    caseSensitivity: Qt.CaseInsensitive
                }

May I know if I am missing something in my implementation or do I need to filter my text from these special characters?
Just to confirm, no such warnings were observed when using the released version of SortFilterProxyModel

xfdingustc · 2025-12-30T02:53:26Z

Great Effort! I really need this!

olafmandel and others added 23 commits October 27, 2020 16:56

Update CMakeListst.txt for Qt 6

1873b48

cmake: fix c++17 build requirement for msc

f336b3c

Merge pull request #1 from atraczyk/qt-6

994900b

cmake: fix c++17 build requirement for msvc

ExpressionRole: Apply source-get optimization and possibly cache result

0a6e205

Use QHash instead of QMap for faster lookups

c2cc5ce

Fix clazy warnings

5b05eec

Support both Qt5 and Qt6

9d92bda

ValueFilter: Restore QVariant comparison behavior from Qt5

1cd6231

In Qt5, QVariant has attempted to convert differing types in order to evaluate equality. This has been useful when integrating with QML, so restore that behavior.

Merge pull request #1 from RaymiiOrg/qt6

1c316c7

Qt6

Merge branch 'master' into QVariant-lessThan

25075a9

Merge pull request #2 from RaymiiOrg/QVariant-lessThan

3cecb2f

Qvariant less than

Merge pull request #3 from MenloSystems/fix-clazy-warnings

33faea0

Fix clazy warnings

Merge pull request #4 from MenloSystems/ExpressionRole-caching

5176c19

Expression role caching

Create github actions file for Qt5

41271ab

Revert "Merge pull request #4 from MenloSystems/ExpressionRole-caching"

31bea0a

This reverts commit 5176c19, reversing changes made to 33faea0.

Fix after revert

82820b8

Fix C++ 17 compile warning

34162af

Make QVariant compare work with Qt 5.15 and 6.5

909278f

Update readme, add Qt6 actions build

3f390de

Daguerreo reviewed Jul 19, 2023

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Qt6 & Qt5 version#100

Qt6 & Qt5 version#100
RaymiiOrg wants to merge 23 commits intooKcerG:masterfrom
RaymiiOrg:master

RaymiiOrg commented Jul 18, 2023 •

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RaymiiOrg commented Jul 18, 2023 • edited Loading Uh oh! There was an error while loading. Please reload this page.

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RaymiiOrg commented Jul 18, 2023 •

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