Initial commit.

src/engine/engine_fwd.h

@@ -0,0 +1,42 @@
+#ifndef ENGINE_FWD_H
+#define ENGINE_FWD_H
+
+#include <QString>
+
+/// Used by eg engineobserver.h, and thus we reduce header dependencies on enginebase.h
+
+namespace Engine {
+
+struct SimpleMetaBundle;
+class Base;
+
+/**
+ * You should return:
+ * Playing when playing,
+ * Paused when paused
+ * Idle when you still have a URL loaded (ie you have not been told to stop())
+ * Empty when you have been told to stop(),
+ * Error when an error occurred and you stopped yourself
+ *
+ * It is vital to be Idle just after the track has ended!
+ */
+enum State { Empty, Idle, Playing, Paused, Error };
+
+enum TrackChangeType {
+  // One of:
+  First = 0x01,
+  Manual = 0x02,
+  Auto = 0x04,
+  Intro = 0x08,
+
+  // Any of:
+  SameAlbum = 0x10,
+};
+
+Q_DECLARE_FLAGS(TrackChangeFlags, TrackChangeType);
+
+}
+
+typedef Engine::Base EngineBase;
+
+#endif