Fix theme/icon on windows

.kde-ci.yml

@@ -17,6 +17,7 @@ Dependencies:
     'frameworks/ktextwidgets': '@latest-kf6'
     'frameworks/kwidgetsaddons': '@latest-kf6'
     'frameworks/kxmlgui': '@latest-kf6'
+    'frameworks/kiconthemes': '@latest-kf6'
     'games/libkdegames': '@same'
 
 Options:

CMakeLists.txt

@@ -49,6 +49,7 @@ find_package(KF6 ${KF_MIN_VERSION} REQUIRED COMPONENTS
     XmlGui
     KIO
     NewStuff
+    IconThemes
 )
 
 find_package(KDEGames6 6.0.0 REQUIRED)

src/CMakeLists.txt

@@ -67,6 +67,7 @@ target_link_libraries(kigo
     KF6::DBusAddons
     KF6::Crash
     KF6::I18n
+    KF6::IconThemes
     Qt6::Svg
 )
 

src/main.cpp

@@ -15,6 +15,15 @@
 #include <KLocalizedString>
 #include <QCommandLineParser>
 #include <KDBusService>
+#define HAVE_KICONTHEME __has_include(<KIconTheme>)
+#if HAVE_KICONTHEME
+#include <KIconTheme>
+#endif
+
+#define HAVE_STYLE_MANAGER __has_include(<KStyleManager>)
+#if HAVE_STYLE_MANAGER
+#include <KStyleManager>
+#endif
 
 /**
  * This namespace collects all classes related to Kigo, the Go board game.
@@ -29,7 +38,17 @@ namespace Kigo { /* This is only a Doxygen stub */ }
  */
 int main(int argc, char *argv[])
 {
+#if HAVE_KICONTHEME
+    KIconTheme::initTheme();
+#endif
     QApplication app(argc, argv);
+#if HAVE_STYLE_MANAGER
+    KStyleManager::initStyle();
+#else // !HAVE_STYLE_MANAGER
+#if defined(Q_OS_MACOS) || defined(Q_OS_WIN)
+    QApplication::setStyle(QStringLiteral("breeze"));
+#endif // defined(Q_OS_MACOS) || defined(Q_OS_WIN)
+#endif // HAVE_STYLE_MANAGER
 
     KLocalizedString::setApplicationDomain(QByteArrayLiteral("kigo"));