Add AppModel and AppView for loading apps and modify BoxArtManager to return QUrls for QML

app/gui/appmodel.h

@@ -0,0 +1,42 @@
+#pragma once
+
+#include "backend/boxartmanager.h"
+#include "backend/computermanager.h"
+
+#include <QAbstractListModel>
+
+class AppModel : public QAbstractListModel
+{
+    Q_OBJECT
+
+    enum Roles
+    {
+        NameRole = Qt::UserRole,
+        RunningRole,
+        BoxArtRole
+    };
+
+public:
+    explicit AppModel(QObject *parent = nullptr);
+
+    // Must be called before any QAbstractListModel functions
+    Q_INVOKABLE void initialize(int computerIndex);
+
+    QVariant data(const QModelIndex &index, int role) const override;
+
+    int rowCount(const QModelIndex &parent) const override;
+
+    virtual QHash<int, QByteArray> roleNames() const override;
+
+private slots:
+    void handleComputerStateChanged(NvComputer* computer);
+
+    void handleBoxArtLoaded(NvComputer* computer, NvApp app, QUrl image);
+
+private:
+    NvComputer* m_Computer;
+    BoxArtManager m_BoxArtManager;
+    ComputerManager m_ComputerManager;
+    QVector<NvApp> m_Apps;
+    int m_CurrentGameId;
+};