Merge pull request #4700 from lioncash/copies

game_list: Eliminate redundant argument copies 

1 files changed, 47 insertions, 33 deletions

diff --git a/src/yuzu/game_list.cpp b/src/yuzu/game_list.cpp
index 6a71d9644..a9738e298 100644
--- a/src/yuzu/game_list.cpp
+++ b/src/yuzu/game_list.cpp
@@ -56,7 +56,7 @@ bool GameListSearchField::KeyReleaseEater::eventFilter(QObject* obj, QEvent* eve
         case Qt::Key_Return:
         case Qt::Key_Enter: {
             if (gamelist->search_field->visible == 1) {
-                QString file_path = gamelist->getLastFilterResultItem();
+                const QString file_path = gamelist->GetLastFilterResultItem();
 
                 // To avoid loading error dialog loops while confirming them using enter
                 // Also users usually want to run a different game after closing one
@@ -83,22 +83,25 @@ void GameListSearchField::setFilterResult(int visible, int total) {
     label_filter_result->setText(tr("%1 of %n result(s)", "", total).arg(visible));
 }
 
-QString GameList::getLastFilterResultItem() const {
-    QStandardItem* folder;
-    QStandardItem* child;
+QString GameList::GetLastFilterResultItem() const {
     QString file_path;
     const int folder_count = item_model->rowCount();
+
     for (int i = 0; i < folder_count; ++i) {
-        folder = item_model->item(i, 0);
+        const QStandardItem* folder = item_model->item(i, 0);
         const QModelIndex folder_index = folder->index();
         const int children_count = folder->rowCount();
+
         for (int j = 0; j < children_count; ++j) {
-            if (!tree_view->isRowHidden(j, folder_index)) {
-                child = folder->child(j, 0);
-                file_path = child->data(GameListItemPath::FullPathRole).toString();
+            if (tree_view->isRowHidden(j, folder_index)) {
+                continue;
             }
+
+            const QStandardItem* child = folder->child(j, 0);
+            file_path = child->data(GameListItemPath::FullPathRole).toString();
         }
     }
+
     return file_path;
 }
 
@@ -123,7 +126,7 @@ GameListSearchField::GameListSearchField(GameList* parent) : QWidget{parent} {
     edit_filter->setPlaceholderText(tr("Enter pattern to filter"));
     edit_filter->installEventFilter(key_release_eater);
     edit_filter->setClearButtonEnabled(true);
-    connect(edit_filter, &QLineEdit::textChanged, parent, &GameList::onTextChanged);
+    connect(edit_filter, &QLineEdit::textChanged, parent, &GameList::OnTextChanged);
     label_filter_result = new QLabel;
     button_filter_close = new QToolButton(this);
     button_filter_close->setText(QStringLiteral("X"));
@@ -133,7 +136,7 @@ GameListSearchField::GameListSearchField(GameList* parent) : QWidget{parent} {
                        "#000000; font-weight: bold; background: #F0F0F0; }"
                        "QToolButton:hover{ border: none; padding: 0px; color: "
                        "#EEEEEE; font-weight: bold; background: #E81123}"));
-    connect(button_filter_close, &QToolButton::clicked, parent, &GameList::onFilterCloseClicked);
+    connect(button_filter_close, &QToolButton::clicked, parent, &GameList::OnFilterCloseClicked);
     layout_filter->setSpacing(10);
     layout_filter->addWidget(label_filter);
     layout_filter->addWidget(edit_filter);
@@ -159,16 +162,22 @@ static bool ContainsAllWords(const QString& haystack, const QString& userinput)
 }
 
 // Syncs the expanded state of Game Directories with settings to persist across sessions
-void GameList::onItemExpanded(const QModelIndex& item) {
+void GameList::OnItemExpanded(const QModelIndex& item) {
     const auto type = item.data(GameListItem::TypeRole).value<GameListItemType>();
-    if (type == GameListItemType::CustomDir || type == GameListItemType::SdmcDir ||
-        type == GameListItemType::UserNandDir || type == GameListItemType::SysNandDir)
-        item.data(GameListDir::GameDirRole).value<UISettings::GameDir*>()->expanded =
-            tree_view->isExpanded(item);
+    const bool is_dir = type == GameListItemType::CustomDir || type == GameListItemType::SdmcDir ||
+                        type == GameListItemType::UserNandDir ||
+                        type == GameListItemType::SysNandDir;
+
+    if (!is_dir) {
+        return;
+    }
+
+    auto* game_dir = item.data(GameListDir::GameDirRole).value<UISettings::GameDir*>();
+    game_dir->expanded = tree_view->isExpanded(item);
 }
 
 // Event in order to filter the gamelist after editing the searchfield
-void GameList::onTextChanged(const QString& new_text) {
+void GameList::OnTextChanged(const QString& new_text) {
     const int folder_count = tree_view->model()->rowCount();
     QString edit_filter_text = new_text.toLower();
     QStandardItem* folder;
@@ -224,7 +233,7 @@ void GameList::onTextChanged(const QString& new_text) {
     }
 }
 
-void GameList::onUpdateThemedIcons() {
+void GameList::OnUpdateThemedIcons() {
     for (int i = 0; i < item_model->invisibleRootItem()->rowCount(); i++) {
         QStandardItem* child = item_model->invisibleRootItem()->child(i);
 
@@ -276,7 +285,7 @@ void GameList::onUpdateThemedIcons() {
     }
 }
 
-void GameList::onFilterCloseClicked() {
+void GameList::OnFilterCloseClicked() {
     main_window->filterBarSetChecked(false);
 }
 
@@ -317,11 +326,11 @@ GameList::GameList(FileSys::VirtualFilesystem vfs, FileSys::ManualContentProvide
     }
     item_model->setSortRole(GameListItemPath::SortRole);
 
-    connect(main_window, &GMainWindow::UpdateThemedIcons, this, &GameList::onUpdateThemedIcons);
+    connect(main_window, &GMainWindow::UpdateThemedIcons, this, &GameList::OnUpdateThemedIcons);
     connect(tree_view, &QTreeView::activated, this, &GameList::ValidateEntry);
     connect(tree_view, &QTreeView::customContextMenuRequested, this, &GameList::PopupContextMenu);
-    connect(tree_view, &QTreeView::expanded, this, &GameList::onItemExpanded);
-    connect(tree_view, &QTreeView::collapsed, this, &GameList::onItemExpanded);
+    connect(tree_view, &QTreeView::expanded, this, &GameList::OnItemExpanded);
+    connect(tree_view, &QTreeView::collapsed, this, &GameList::OnItemExpanded);
 
     // We must register all custom types with the Qt Automoc system so that we are able to use
     // it with signals/slots. In this case, QList falls under the umbrells of custom types.
@@ -338,17 +347,17 @@ GameList::~GameList() {
     emit ShouldCancelWorker();
 }
 
-void GameList::setFilterFocus() {
+void GameList::SetFilterFocus() {
     if (tree_view->model()->rowCount() > 0) {
         search_field->setFocus();
     }
 }
 
-void GameList::setFilterVisible(bool visibility) {
+void GameList::SetFilterVisible(bool visibility) {
     search_field->setVisible(visibility);
 }
 
-void GameList::clearFilter() {
+void GameList::ClearFilter() {
     search_field->clear();
 }
 
@@ -397,10 +406,11 @@ void GameList::ValidateEntry(const QModelIndex& item) {
     }
 }
 
-bool GameList::isEmpty() const {
+bool GameList::IsEmpty() const {
     for (int i = 0; i < item_model->rowCount(); i++) {
         const QStandardItem* child = item_model->invisibleRootItem()->child(i);
         const auto type = static_cast<GameListItemType>(child->type());
+
         if (!child->hasChildren() &&
             (type == GameListItemType::SdmcDir || type == GameListItemType::UserNandDir ||
              type == GameListItemType::SysNandDir)) {
@@ -408,11 +418,12 @@ bool GameList::isEmpty() const {
             i--;
         }
     }
+
     return !item_model->invisibleRootItem()->hasChildren();
 }
 
-void GameList::DonePopulating(QStringList watch_list) {
-    emit ShowList(!isEmpty());
+void GameList::DonePopulating(const QStringList& watch_list) {
+    emit ShowList(!IsEmpty());
 
     item_model->invisibleRootItem()->appendRow(new GameListAddDir());
 
@@ -472,7 +483,7 @@ void GameList::PopupContextMenu(const QPoint& menu_location) {
     context_menu.exec(tree_view->viewport()->mapToGlobal(menu_location));
 }
 
-void GameList::AddGamePopup(QMenu& context_menu, u64 program_id, std::string path) {
+void GameList::AddGamePopup(QMenu& context_menu, u64 program_id, const std::string& path) {
     QAction* open_save_location = context_menu.addAction(tr("Open Save Data Location"));
     QAction* open_mod_location = context_menu.addAction(tr("Open Mod Data Location"));
     QAction* open_transferable_shader_cache =
@@ -690,12 +701,15 @@ void GameList::SaveInterfaceLayout() {
 }
 
 void GameList::LoadInterfaceLayout() {
-    auto header = tree_view->header();
-    if (!header->restoreState(UISettings::values.gamelist_header_state)) {
-        // We are using the name column to display icons and titles
-        // so make it as large as possible as default.
-        header->resizeSection(COLUMN_NAME, header->width());
+    auto* header = tree_view->header();
+
+    if (header->restoreState(UISettings::values.gamelist_header_state)) {
+        return;
     }
+
+    // We are using the name column to display icons and titles
+    // so make it as large as possible as default.
+    header->resizeSection(COLUMN_NAME, header->width());
 }
 
 const QStringList GameList::supported_file_extensions = {