squash #6158 (#6160)

* move message_log_widget to game

* move files

* update headers

* fix cmakelists

* oracle fixes

* split implementation out to cpp

* fix recursive import

* fix main file

* format

cockatrice/src/interface/widgets/general/background_sources.h

@@ -0,0 +1,62 @@
+#ifndef COCKATRICE_BACKGROUND_SOURCES_H
+#define COCKATRICE_BACKGROUND_SOURCES_H
+
+#include <QList>
+#include <QObject>
+#include <QString>
+
+class BackgroundSources
+{
+    Q_GADGET
+public:
+    enum Type
+    {
+        Theme,
+        RandomCardArt,
+        DeckFileArt
+    };
+    Q_ENUM(Type)
+
+    struct Entry
+    {
+        Type type;
+        const char *id;    // stable ID for settings
+        const char *trKey; // key for translation
+    };
+
+    static QList<Entry> all()
+    {
+        return {{Theme, "theme", QT_TR_NOOP("Theme")},
+                {RandomCardArt, "random_card_art", QT_TR_NOOP("Art crop of random card")},
+                {DeckFileArt, "deck_file_art", QT_TR_NOOP("Art crop of background.cod deck file")}};
+    }
+
+    static QString toId(Type type)
+    {
+        for (const auto &e : all()) {
+            if (e.type == type)
+                return e.id;
+        }
+        return {};
+    }
+
+    static Type fromId(const QString &id)
+    {
+        for (const auto &e : all()) {
+            if (id == e.id)
+                return e.type;
+        }
+        return Theme; // default
+    }
+
+    static QString toDisplay(Type type)
+    {
+        for (const auto &e : all()) {
+            if (e.type == type)
+                return QObject::tr(e.trKey);
+        }
+        return {};
+    }
+};
+
+#endif // COCKATRICE_BACKGROUND_SOURCES_H