Merge pull request #2034 from jroweboy/loading-widget

QT Frontend: Add a Loading screen with progressbar

1 files changed, 56 insertions, 0 deletions

diff --git a/src/yuzu/loading_screen.h b/src/yuzu/loading_screen.h
new file mode 100644
index 000000000..2a6cf1142
--- /dev/null
+++ b/src/yuzu/loading_screen.h
@@ -0,0 +1,56 @@
+// Copyright 2019 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <memory>
+#include <QWidget>
+
+#if !QT_CONFIG(movie)
+#define YUZU_QT_MOVIE_MISSING 1
+#endif
+
+namespace Loader {
+class AppLoader;
+}
+
+namespace Ui {
+class LoadingScreen;
+}
+
+class QBuffer;
+class QByteArray;
+class QMovie;
+
+class LoadingScreen : public QWidget {
+    Q_OBJECT
+
+public:
+    explicit LoadingScreen(QWidget* parent = nullptr);
+
+    ~LoadingScreen();
+
+    /// Call before showing the loading screen to load the widgets with the logo and banner for the
+    /// currently loaded application.
+    void Prepare(Loader::AppLoader& loader);
+
+    /// After the loading screen is hidden, the owner of this class can call this to clean up any
+    /// used resources such as the logo and banner.
+    void Clear();
+
+    // In order to use a custom widget with a stylesheet, you need to override the paintEvent
+    // See https://wiki.qt.io/How_to_Change_the_Background_Color_of_QWidget
+    void paintEvent(QPaintEvent* event) override;
+
+    void OnLoadProgress(std::size_t value, std::size_t total);
+
+private:
+#ifndef YUZU_QT_MOVIE_MISSING
+    std::unique_ptr<QMovie> animation;
+    std::unique_ptr<QBuffer> backing_buf;
+    std::unique_ptr<QByteArray> backing_mem;
+#endif
+    std::unique_ptr<Ui::LoadingScreen> ui;
+    std::size_t previous_total = 0;
+};