[education/rkward] rkward: Fix some warnings

[Thomas Friedrichsmeier]

Git commit 870b7cb89764a6b268be4c397efb400cd94f012d by Thomas Friedrichsmeier.
Committed on 22/04/2025 at 15:17.
Pushed by tfry into branch 'master'.

Fix some warnings

M  +1    -1    rkward/misc/rkxmlguipreviewarea.cpp
M  +5    -1    rkward/windows/rktoplevelwindowgui.cpp

https://invent.kde.org/education/rkward/-/commit/870b7cb89764a6b268be4c397efb400cd94f012d

diff --git a/rkward/misc/rkxmlguipreviewarea.cpp b/rkward/misc/rkxmlguipreviewarea.cpp
index ec451db9b..06549c8d2 100644
--- a/rkward/misc/rkxmlguipreviewarea.cpp
+++ b/rkward/misc/rkxmlguipreviewarea.cpp
@@ -234,7 +234,7 @@ friend class RKPreviewManager;
 			update();
 		});
 	}
-	void paintEvent(QPaintEvent *event) {
+	void paintEvent(QPaintEvent *event) override {
 		QPainter painter(this);
 		painter.setRenderHint(QPainter::Antialiasing);
 		painter.setPen(pen);
diff --git a/rkward/windows/rktoplevelwindowgui.cpp b/rkward/windows/rktoplevelwindowgui.cpp
index a2aaa201f..5872151ab 100644
--- a/rkward/windows/rktoplevelwindowgui.cpp
+++ b/rkward/windows/rktoplevelwindowgui.cpp
@@ -17,8 +17,8 @@ SPDX-License-Identifier: GPL-2.0-or-later
 #include <kshortcutsdialog.h>
 #include <KHelpMenu>
 #include <KColorSchemeManager>
+#include <kcolorscheme_version.h>
 #include <KActionMenu>
-#include <kconfigwidgets_version.h>
 
 #include <QWhatsThis>
 #include <QDomDocument>
@@ -94,7 +94,11 @@ RKTopLevelWindowGUI::RKTopLevelWindowGUI(KXmlGuiWindow *for_window) : QObject(fo
 	KStandardAction::keyBindings(this, &RKTopLevelWindowGUI::configureShortcuts, actionCollection());
 	KStandardAction::configureToolbars(this, &RKTopLevelWindowGUI::configureToolbars, actionCollection());
 	// Color scheme action. NOTE: selection is non-permanent for KF5 <= 5.87.0, auto-saved afterwards. Apparently, auto-save cannot be implemented for earlier versions within a few lines of code
+#if KCOLORSCHEME_VERSION >= QT_VERSION_CHECK(6,6,0)   // NOTE: When retiring this version check, obsolete the "manager"-member along with it
+	KColorSchemeManager *manager = KColorSchemeManager::instance();
+#else
 	KColorSchemeManager *manager = new KColorSchemeManager(this);
+#endif
 	actionCollection()->addAction(QStringLiteral("colorscheme_menu"), KColorSchemeMenu::createMenu(manager, this));
 	// our "status bar" is inlined, and always visible. Action below would only hide and show a useless proxy
 	// KF6 TODO: Still needed at all?