Implement basic multithreading support

A few CPU heavy operations, which are opening an archive and displaying
a selected Activity, have been moved to another thread to avoid having
long-running operations on the main thread.

1 files changed, 9 insertions, 0 deletions

diff --git a/src/mainwindow.h b/src/mainwindow.h
index f1de2d7..abf9acc 100644
--- a/src/mainwindow.h
+++ b/src/mainwindow.h
@@ -3,6 +3,8 @@
 #include <QMainWindow>
 #include <QListWidgetItem>
 #include <QLocale>
+#include <QFutureWatcher>
+#include <variant>
 
 #include "archive_parser.h"
 #include "types.h"
@@ -47,6 +49,12 @@ private:
     void reset_view_filters();
     void relist_statuses();
     void open_file(const QString &filename);
+    void archive_thread_watcher_done();
+
+    void finish_listWidget_itemActivated(const QString& status_info);
+    void finish_open_file(const Archive::InitError& parse_error);
+
+    QString open_file_filename;
 
     Ui::MainWindow *ui;
 
@@ -54,6 +62,7 @@ private:
     bool view_filters_changed = false;
 
     Archive *data_archive = nullptr;
+    QFutureWatcher<std::variant<QString, Archive::InitError>> archive_thread_watcher;
 
     QLocale locale_context;
 };