Qt: Avoid a full reset when toggling show cover titles / localized titles

src/duckstation-qt/gamelistwidget.cpp

@@ -152,11 +152,19 @@ void GameListModel::setShowLocalizedTitles(bool enabled)
 {
   m_show_localized_titles = enabled;
 
-  emit dataChanged(index(0, Column_Title), index(rowCount() - 1, Column_Title), {Qt::DisplayRole});
+  emit dataChanged(index(0, Column_Title), index(rowCount() - 1, Column_Title), {Qt::DisplayRole, Qt::ToolTipRole});
+  if (m_show_titles_for_covers)
+    emit dataChanged(index(0, Column_Cover), index(rowCount() - 1, Column_Cover), {Qt::DisplayRole});
   // emit cover changed as well since the autogenerated covers will differ
   refreshCovers();
 }
 
+void GameListModel::setShowCoverTitles(bool enabled)
+{
+  m_show_titles_for_covers = enabled;
+  emit dataChanged(index(0, Column_Cover), index(rowCount() - 1, Column_Cover), {Qt::DisplayRole});
+}
+
 void GameListModel::setShowGameIcons(bool enabled)
 {
   m_show_game_icons = enabled;
@@ -244,7 +252,7 @@ void GameListModel::updateCoverScale()
 void GameListModel::refreshCovers()
 {
   m_cover_pixmap_cache.Clear();
-  emit dataChanged(index(0, Column_Cover), index(rowCount() - 1, Column_Cover), {Qt::DisplayRole});
+  emit dataChanged(index(0, Column_Cover), index(rowCount() - 1, Column_Cover), {Qt::DecorationRole});
 }
 
 void GameListModel::updateCacheSize(int num_rows, int num_columns)
@@ -1598,8 +1606,6 @@ void GameListWidget::setShowLocalizedTitles(bool enabled)
   Host::SetBaseBoolSettingValue("UI", "GameListShowLocalizedTitles", enabled);
   Host::CommitBaseSettingChanges();
   m_model->setShowLocalizedTitles(enabled);
-  if (isShowingGameGrid())
-    m_model->refresh();
 }
 
 void GameListWidget::setShowGameIcons(bool enabled)
@@ -1621,8 +1627,6 @@ void GameListWidget::setShowCoverTitles(bool enabled)
   Host::CommitBaseSettingChanges();
   m_model->setShowCoverTitles(enabled);
   m_grid_view->updateLayout();
-  if (isShowingGameGrid())
-    m_model->refresh();
 }
 
 void GameListWidget::updateView(bool grid_view)

src/duckstation-qt/gamelistwidget.h

@@ -91,7 +91,7 @@ public:
   void setShowLocalizedTitles(bool enabled);
 
   bool getShowCoverTitles() const { return m_show_titles_for_covers; }
-  void setShowCoverTitles(bool enabled) { m_show_titles_for_covers = enabled; }
+  void setShowCoverTitles(bool enabled);
 
   float getIconScale() const { return m_icon_scale; }
   void setIconScale(float scale);