QmlDesigner: Fix SpinBox showing group separator

In Qt 6.7.3 the StudioControls SpinBoxes were showing group separators
caused by the validator fixup function which takes the system locale
to generated the presented string.
We fix this with a design studio specific locale that is assigned to the
controls that show numbers.

Task-number: QDS-13536
Change-Id: I26682b08a8e29cd5dc09b3ff09212568bfa4fe52
Reviewed-by: Marco Bubke <marco.bubke@qt.io>

share/qtcreator/qmldesigner/propertyEditorQmlSources/imports/StudioControls/RealSpinBox.qml

@@ -4,6 +4,7 @@
 import QtQuick
 import QtQuick.Templates as T
 import StudioTheme 1.0 as StudioTheme
+import StudioQuickUtils
 
 T.SpinBox {
     id: control
@@ -71,6 +72,8 @@ T.SpinBox {
     signal dragging
     signal indicatorPressed
 
+    locale: Utils.locale
+
     // Use custom wheel handling due to bugs
     property bool __wheelEnabled: false
     wheelEnabled: false

share/qtcreator/qmldesigner/propertyEditorQmlSources/imports/StudioControls/SpinBox.qml

@@ -4,6 +4,7 @@
 import QtQuick
 import QtQuick.Templates as T
 import StudioTheme 1.0 as StudioTheme
+import StudioQuickUtils
 
 T.SpinBox {
     id: control
@@ -54,6 +55,8 @@ T.SpinBox {
     signal dragEnded
     signal dragging
 
+    locale: Utils.locale
+
     // Use custom wheel handling due to bugs
     property bool __wheelEnabled: false
     wheelEnabled: false

src/plugins/qmldesigner/qmldesignerplugin.cpp

@@ -27,7 +27,6 @@
 #include <formeditor/transitiontool.h>
 #include <formeditor/view3dtool.h>
 #include <studioquickwidget.h>
-#include <windowmanager.h>
 #ifndef QDS_USE_PROJECTSTORAGE
 #  include <metainfo.h>
 #endif
@@ -311,7 +310,6 @@ bool QmlDesignerPlugin::initialize(const QStringList & /*arguments*/, QString *e
     //TODO Move registering those types out of the property editor, since they are used also in the states editor
     Quick2PropertyEditorView::registerQmlTypes();
     StudioQuickWidget::registerDeclarativeType();
-    QmlDesignerBase::WindowManager::registerDeclarativeType();
 
     Exception::setWarnAboutException(!QmlDesignerPlugin::instance()
                                           ->settings()

src/plugins/qmldesignerbase/CMakeLists.txt

@@ -45,6 +45,7 @@ extend_qtc_plugin(QmlDesignerBase
   PUBLIC_INCLUDES studio
   SOURCES_PREFIX studio
   SOURCES
+    studioquickutils.cpp studioquickutils.h
     studiostyle.cpp studiostyle.h
     studiostyle_p.cpp studiostyle_p.h
     studioquickwidget.cpp studioquickwidget.h

src/plugins/qmldesignerbase/qmldesignerbaseplugin.cpp

@@ -8,6 +8,8 @@
 #include "studio/studiostyle.h"
 
 #include <designersettings.h>
+#include <studioquickutils.h>
+#include <windowmanager.h>
 
 #include <coreplugin/icore.h>
 #include <utils/appinfo.h>
@@ -89,6 +91,9 @@ bool QmlDesignerBasePlugin::initialize(const QStringList &arguments, QString *)
     if (arguments.contains("-qml-lite-designer"))
         enbableLiteMode();
 
+    WindowManager::registerDeclarativeType();
+    StudioQuickUtils::registerDeclarativeType();
+
     d = std::make_unique<Data>();
     if (Core::ICore::settings()->value("QML/Designer/StandAloneMode", false).toBool())
         d->studioConfigSettingsPage = std::make_unique<StudioConfigSettingsPage>();

src/plugins/qmldesignerbase/studio/studioquickutils.cpp

@@ -0,0 +1,31 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+#include "studioquickutils.h"
+
+#include <coreplugin/icore.h>
+
+namespace QmlDesigner {
+
+StudioQuickUtils::StudioQuickUtils()
+{
+    m_locale = QLocale("DesignStudioLocale");
+    m_locale.setNumberOptions(QLocale::OmitGroupSeparator);
+}
+
+void StudioQuickUtils::registerDeclarativeType()
+{
+    qmlRegisterSingletonType<StudioQuickUtils>(
+        "StudioQuickUtils", 1, 0, "Utils", [](QQmlEngine *, QJSEngine *) {
+            return new StudioQuickUtils();
+        });
+}
+
+const QLocale &StudioQuickUtils::locale() const
+{
+    return m_locale;
+}
+
+StudioQuickUtils::~StudioQuickUtils() {}
+
+} // namespace QmlDesigner

src/plugins/qmldesignerbase/studio/studioquickutils.h

@@ -0,0 +1,39 @@
+// Copyright (C) 2024 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+#pragma once
+
+#include "../qmldesignerbase_global.h"
+
+#include <QtQml/qqml.h>
+
+#include <QLocale>
+
+namespace QmlDesigner {
+
+class QMLDESIGNERBASE_EXPORT StudioQuickUtils : public QObject
+{
+    Q_OBJECT
+
+    Q_PROPERTY(QLocale locale READ locale NOTIFY localeChanged)
+
+public:
+    ~StudioQuickUtils();
+
+    StudioQuickUtils(const StudioQuickUtils &) = delete;
+    void operator=(const StudioQuickUtils &) = delete;
+
+    static void registerDeclarativeType();
+
+    const QLocale &locale() const;
+
+signals:
+    void localeChanged();
+
+private:
+    StudioQuickUtils();
+
+    QLocale m_locale;
+};
+
+} // namespace QmlDesigner

src/plugins/qmldesignerbase/utils/windowmanager.cpp

@@ -11,9 +11,7 @@
 #include <QScreen>
 #include <QWindow>
 
-namespace QmlDesignerBase {
-
-QPointer<WindowManager> WindowManager::m_instance = nullptr;
+namespace QmlDesigner {
 
 WindowManager::WindowManager()
 {
@@ -56,4 +54,4 @@ QRect WindowManager::getScreenGeometry(QPoint point)
     return screen->geometry();
 }
 
-} // namespace QmlDesignerBase
+} // namespace QmlDesigner

src/plugins/qmldesignerbase/utils/windowmanager.h

@@ -10,7 +10,7 @@
 
 QT_FORWARD_DECLARE_CLASS(QWindow)
 
-namespace QmlDesignerBase {
+namespace QmlDesigner {
 
 class QMLDESIGNERBASE_EXPORT WindowManager : public QObject
 {
@@ -34,8 +34,6 @@ signals:
 
 private:
     WindowManager();
-
-    static QPointer<WindowManager> m_instance;
 };
 
-} // namespace QmlDesignerBase
+} // namespace QmlDesigner