Add loading indicator to minimized bar when loading track

It is no longer useful externally, as the database API doesn't return
unparsed QVariants any more.

src/asyncdatabase.h

@@ -10,10 +10,6 @@ class QSqlDatabase;
 #include <QString>
 #include <QObject>
 #include <QFuture>
-#include <QFutureWatcher>
-#include <QSqlQuery>
-#include <QDebug>
-#include <QThread>
 #include <QSharedDataPointer>
 
 #include <memory>
@@ -23,9 +19,6 @@ class QSqlDatabase;
 
 #include "asyncdatabase_p.h"
 
-using Row  = std::vector<QVariant>;
-using Rows = std::vector<Row>;
-
 struct DatabaseConfigurationPrivate;
 
 ///
@@ -66,37 +59,6 @@ private:
 ///
 const QString DATABASE_TYPE_SQLITE = QStringLiteral("QSQLITE");
 
-///
-/// Parse the row into a tuple of the given types.
-/// The types need to be deserializable from QVariant.
-///
-template <typename RowTypesTuple>
-auto parseRow(const Row &row) -> RowTypesTuple
-{
-    auto tuple = RowTypesTuple();
-    int i = 0;
-    asyncdatabase_private::iterate_tuple(tuple, [&](auto &elem) {
-        elem = row.at(i).value<std::decay_t<decltype(elem)>>();
-        i++;
-    });
-    return tuple;
-}
-
-///
-/// Parse the rows into a list of tuples of the given types.
-/// The types need to be deserializable from QVariant.
-///
-template <typename RowTypesTuple>
-auto parseRows(const Rows &rows) -> std::vector<RowTypesTuple> {
-    std::vector<RowTypesTuple> parsedRows;
-    parsedRows.reserve(rows.size());
-    for (const auto &row : rows) {
-        parsedRows.push_back(parseRow<RowTypesTuple>(row));
-    }
-
-    return parsedRows;
-}
-
 template <typename T>
 concept FromSql = requires(T v, typename T::ColumnTypes row)
 {
@@ -123,7 +85,7 @@ public:
     /// \return
     ///
     template <typename ...Args>
-    requires std::conjunction_v<std::is_convertible<Args, Args>...>
+    requires std::conjunction_v<std::is_convertible<Args, QVariant>...>
     auto execute(const QString &sqlQuery, Args... args) -> QFuture<void> {
         return db().execute(sqlQuery, args...);
     }
@@ -151,7 +113,7 @@ public:
     /// and a `static T fromSql(ColumnTypes tuple)` deserialization method.
     ///
     template <typename T, typename ...Args>
-    requires FromSql<T> && std::conjunction_v<std::is_convertible<Args, Args>...>
+    requires FromSql<T> && std::conjunction_v<std::is_convertible<Args, QVariant>...>
     auto getResults(const QString &sqlQuery, Args... args) -> QFuture<std::vector<T>> {
         return db().getResults<T, Args...>(sqlQuery, args...);
     }
@@ -160,7 +122,7 @@ public:
     /// \brief Like getResults, but for retrieving just one row.
     ///
     template <typename T, typename ...Args>
-    requires FromSql<T> && std::conjunction_v<std::is_convertible<Args, Args>...>
+    requires FromSql<T> && std::conjunction_v<std::is_convertible<Args, QVariant>...>
     auto getResult(const QString &sqlQuery, Args... args) -> QFuture<std::optional<T>> {
         return db().getResult<T, Args...>(sqlQuery, args...);
     }

src/asyncdatabase_p.h

@@ -60,6 +60,26 @@ void connectFuture(const QFuture<T> &future, QObjectDerivedType *self, const Fun
 using Row  = std::vector<QVariant>;
 using Rows = std::vector<Row>;
 
+template <typename RowTypesTuple>
+auto parseRow(const Row &row) -> RowTypesTuple
+{
+    auto tuple = RowTypesTuple();
+    int i = 0;
+    asyncdatabase_private::iterate_tuple(tuple, [&](auto &elem) {
+        elem = row.at(i).value<std::decay_t<decltype(elem)>>();
+        i++;
+    });
+    return tuple;
+}
+
+template <typename RowTypesTuple>
+auto parseRows(const Rows &rows) -> std::vector<RowTypesTuple> {
+    std::vector<RowTypesTuple> parsedRows;
+    parsedRows.reserve(rows.size());
+    std::ranges::transform(rows, std::back_inserter(parsedRows), parseRow<RowTypesTuple>);
+    return parsedRows;
+}
+
 void runDatabaseMigrations(QSqlDatabase &database, const QString &migrationDirectory);
 
 void printSqlError(const QSqlQuery &query);

src/contents/ui/MaximizedPlayerPage.qml

@@ -28,7 +28,7 @@ Item {
             anchors.fill: parent
             color: Qt.rgba(25, 25, 30, 1)
         }
-        
+
         Image {
             anchors.fill: parent
             asynchronous: true
@@ -171,7 +171,7 @@ Item {
                         height: 512
                     }
 
-                    fillMode: Image.PreserveAspectFit
+                    fillMode: Image.PreserveAspectCrop
                 }
             }
             

src/contents/ui/MinimizedPlayerControls.qml

@@ -65,6 +65,8 @@ Item {
                     Image {
                         id: mainIcon
                         anchors.fill: parent
+                        
+                        visible: !loadingIndicator.visible
                         asynchronous: true
                         mipmap: true
 
@@ -72,7 +74,15 @@ Item {
 
                         sourceSize.width: 512
                         sourceSize.height: 512
-                        fillMode: Image.PreserveAspectFit
+                        fillMode: Image.PreserveAspectCrop
+                    }
+                    
+                    BusyIndicator {
+                        id: loadingIndicator
+                        anchors.centerIn: parent
+                        visible: UserPlaylistModel.loading
+                        Kirigami.Theme.colorSet: Kirigami.Theme.Complementary
+                        Kirigami.Theme.inherit: false
                     }
                 }