Use maybe_unused instead of Q_UNUSED

src/citra_qt/camera/qt_multimedia_camera.cpp

@@ -12,9 +12,8 @@
 
 namespace Camera {
 
-QList<QVideoFrame::PixelFormat> QtCameraSurface::supportedPixelFormats(
+QList<QVideoFrame::PixelFormat> QtCameraSurface::supportedPixelFormats([
-    QAbstractVideoBuffer::HandleType handleType) const {
+    [maybe_unused]] QAbstractVideoBuffer::HandleType handleType) const {
-    Q_UNUSED(handleType);
     return QList<QVideoFrame::PixelFormat>()
            << QVideoFrame::Format_ARGB32 << QVideoFrame::Format_ARGB32_Premultiplied
            << QVideoFrame::Format_RGB32 << QVideoFrame::Format_RGB24 << QVideoFrame::Format_RGB565

src/citra_qt/configuration/configure_motion_touch.cpp

@@ -168,10 +168,10 @@ void ConfigureMotionTouch::UpdateUiDisplay() {
 void ConfigureMotionTouch::ConnectEvents() {
     connect(ui->motion_provider,
             static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this,
-            [this](int index) { Q_UNUSED(index); UpdateUiDisplay(); });
+            [this]([[maybe_unused]] int index) { UpdateUiDisplay(); });
     connect(ui->touch_provider,
             static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this,
-            [this](int index) { Q_UNUSED(index); UpdateUiDisplay(); });
+            [this]([[maybe_unused]] int index) { UpdateUiDisplay(); });
     connect(ui->udp_test, &QPushButton::clicked, this, &ConfigureMotionTouch::OnCemuhookUDPTest);
     connect(ui->touch_calibration_config, &QPushButton::clicked, this,
             &ConfigureMotionTouch::OnConfigureTouchCalibration);

src/citra_qt/configuration/configure_touch_from_button.cpp

@@ -326,8 +326,8 @@ void ConfigureTouchFromButton::OnBindingChanged(QStandardItem* item) {
     }
 }
 
-void ConfigureTouchFromButton::OnBindingDeleted(const QModelIndex& parent, int first, int last) {
+void ConfigureTouchFromButton::OnBindingDeleted([[maybe_unused]] const QModelIndex& parent,
-    Q_UNUSED(parent);
+                                                int first, int last) {
     for (int i = first; i <= last; ++i) {
         auto ix = binding_list_model->index(i, 0);
         if (!ix.isValid()) {
@@ -514,8 +514,7 @@ void TouchScreenPreview::mouseMoveEvent(QMouseEvent* event) {
     }
 }
 
-void TouchScreenPreview::leaveEvent(QEvent* event) {
+void TouchScreenPreview::leaveEvent([[maybe_unused]] QEvent* event) {
-    Q_UNUSED(event);
     if (coord_label) {
         coord_label->clear();
     }

src/citra_qt/debugger/graphics/graphics.cpp

@@ -14,8 +14,7 @@ GPUCommandStreamItemModel::GPUCommandStreamItemModel(QObject* parent)
             &GPUCommandStreamItemModel::OnGXCommandFinishedInternal);
 }
 
-int GPUCommandStreamItemModel::rowCount(const QModelIndex& parent) const {
+int GPUCommandStreamItemModel::rowCount([[maybe_unused]] const QModelIndex& parent) const {
-    Q_UNUSED(parent);
     return command_count;
 }
 

src/citra_qt/debugger/graphics/graphics_breakpoints.cpp

@@ -16,13 +16,11 @@ BreakPointModel::BreakPointModel(std::shared_ptr<Pica::DebugContext> debug_conte
       at_breakpoint(debug_context->at_breakpoint),
       active_breakpoint(debug_context->active_breakpoint) {}
 
-int BreakPointModel::columnCount(const QModelIndex& parent) const {
+int BreakPointModel::columnCount([[maybe_unused]] const QModelIndex& parent) const {
-    Q_UNUSED(parent);
     return 1;
 }
 
-int BreakPointModel::rowCount(const QModelIndex& parent) const {
+int BreakPointModel::rowCount([[maybe_unused]] const QModelIndex& parent) const {
-    Q_UNUSED(parent);
     return static_cast<int>(Pica::DebugContext::Event::NumEvents);
 }
 

src/citra_qt/debugger/graphics/graphics_cmdlists.cpp

@@ -57,13 +57,11 @@ public:
 
 GPUCommandListModel::GPUCommandListModel(QObject* parent) : QAbstractListModel(parent) {}
 
-int GPUCommandListModel::rowCount(const QModelIndex& parent) const {
+int GPUCommandListModel::rowCount([[maybe_unused]] const QModelIndex& parent) const {
-    Q_UNUSED(parent);
     return static_cast<int>(pica_trace.writes.size());
 }
 
-int GPUCommandListModel::columnCount(const QModelIndex& parent) const {
+int GPUCommandListModel::columnCount([[maybe_unused]] const QModelIndex& parent) const {
-    Q_UNUSED(parent);
     return 4;
 }
 
@@ -91,8 +89,8 @@ QVariant GPUCommandListModel::data(const QModelIndex& index, int role) const {
     return QVariant();
 }
 
-QVariant GPUCommandListModel::headerData(int section, Qt::Orientation orientation, int role) const {
+QVariant GPUCommandListModel::headerData(int section, [[maybe_unused]] Qt::Orientation orientation,
-    Q_UNUSED(orientation);
+                                         int role) const {
     switch (role) {
     case Qt::DisplayRole: {
         switch (section) {

src/citra_qt/debugger/graphics/graphics_vertex_shader.cpp

@@ -29,19 +29,17 @@ using nihstro::SwizzlePattern;
 GraphicsVertexShaderModel::GraphicsVertexShaderModel(GraphicsVertexShaderWidget* parent)
     : QAbstractTableModel(parent), par(parent) {}
 
-int GraphicsVertexShaderModel::columnCount(const QModelIndex& parent) const {
+int GraphicsVertexShaderModel::columnCount([[maybe_unused]] const QModelIndex& parent) const {
-    Q_UNUSED(parent);
     return 3;
 }
 
-int GraphicsVertexShaderModel::rowCount(const QModelIndex& parent) const {
+int GraphicsVertexShaderModel::rowCount([[maybe_unused]] const QModelIndex& parent) const {
-    Q_UNUSED(parent);
     return static_cast<int>(par->info.code.size());
 }
 
-QVariant GraphicsVertexShaderModel::headerData(int section, Qt::Orientation orientation,
+QVariant GraphicsVertexShaderModel::headerData(int section,
+                                               [[maybe_unused]] Qt::Orientation orientation,
                                                int role) const {
-    Q_UNUSED(orientation);
     switch (role) {
     case Qt::DisplayRole: {
         if (section == 0) {

src/citra_qt/debugger/profiler.cpp

@@ -112,8 +112,7 @@ MicroProfileWidget::MicroProfileWidget(QWidget* parent) : QWidget(parent) {
     connect(&update_timer, &QTimer::timeout, this, qOverload<>(&MicroProfileWidget::update));
 }
 
-void MicroProfileWidget::paintEvent(QPaintEvent* ev) {
+void MicroProfileWidget::paintEvent([[maybe_unused]] QPaintEvent* ev) {
-    Q_UNUSED(ev);
     QPainter painter(this);
 
     // The units used by Microprofile for drawing are based in pixels on a 96 dpi display.

src/citra_qt/game_list.cpp

@@ -754,7 +754,6 @@ void GameListPlaceholder::onUpdateThemedIcons() {
     image->setPixmap(QIcon::fromTheme(QStringLiteral("plus_folder")).pixmap(200));
 }
 
-void GameListPlaceholder::mouseDoubleClickEvent(QMouseEvent* event) {
+void GameListPlaceholder::mouseDoubleClickEvent([[maybe_unused]] QMouseEvent* event) {
-    Q_UNUSED(event);
     emit GameListPlaceholder::AddDirectory();
 }

src/citra_qt/main.cpp

@@ -2096,18 +2096,15 @@ void GMainWindow::OnMouseActivity() {
     ShowMouseCursor();
 }
 
-void GMainWindow::mouseMoveEvent(QMouseEvent* event) {
+void GMainWindow::mouseMoveEvent([[maybe_unused]] QMouseEvent* event) {
-    Q_UNUSED(event);
     OnMouseActivity();
 }
 
-void GMainWindow::mousePressEvent(QMouseEvent* event) {
+void GMainWindow::mousePressEvent([[maybe_unused]] QMouseEvent* event) {
-    Q_UNUSED(event);
     OnMouseActivity();
 }
 
-void GMainWindow::mouseReleaseEvent(QMouseEvent* event) {
+void GMainWindow::mouseReleaseEvent([[maybe_unused]] QMouseEvent* event) {
-    Q_UNUSED(event);
     OnMouseActivity();
 }
 

src/citra_qt/util/clickable_label.cpp

@@ -4,11 +4,9 @@
 
 #include "citra_qt/util/clickable_label.h"
 
-ClickableLabel::ClickableLabel(QWidget* parent, Qt::WindowFlags f) : QLabel(parent) {
+ClickableLabel::ClickableLabel(QWidget* parent, [[maybe_unused]] Qt::WindowFlags f)
-    Q_UNUSED(f);
+    : QLabel(parent) {}
-}
 
-void ClickableLabel::mouseReleaseEvent(QMouseEvent* event) {
+void ClickableLabel::mouseReleaseEvent([[maybe_unused]] QMouseEvent* event) {
-    Q_UNUSED(event);
     emit clicked();
 }