X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fsequencer.h;h=d2a786987e8d58cd43a6d2b1b1bc83e2f7132884;hb=eab0e547df149ba6972ee2a2b3435e37a4fc0a0c;hp=e6eb2b7849381a4f4ad2f4a6196c71610040d186;hpb=8ffa42fba0e6a13286b465473fd399cac7c77dcf;p=libs%2Fdemoscene.git

diff --git a/source/sequencer.h b/source/sequencer.h
index e6eb2b7..d2a7869 100644
--- a/source/sequencer.h
+++ b/source/sequencer.h
@@ -3,14 +3,67 @@
 
 #include <vector>
 #include <sigc++/signal.h>
+#include <msp/core/maputils.h>
+#include <msp/core/refptr.h>
+#include <msp/datafile/loadabletyperegistry.h>
+#include <msp/datafile/objectloader.h>
 #include <msp/time/timedelta.h>
 #include <msp/time/timestamp.h>
+#include "action.h"
 
-class Action;
+namespace Msp {
+namespace DemoScene {
+
+class Demo;
 
 class Sequencer
 {
+public:
+	class Loader: public Msp::DataFile::ObjectLoader<Sequencer>
+	{
+	private:
+		Demo &demo;
+		float base_beat;
+
+	public:
+		Loader(Sequencer &, Demo &);
+
+	private:
+		void base(float);
+		void define_action(const std::string &);
+		void instant(float);
+		void repeat(float, float, unsigned);
+		void segment(float, float);
+	};
+
 private:
+	class ActionDefLoader: public Msp::DataFile::ObjectLoader<Sequencer>
+	{
+	protected:
+		template<typename T>
+		struct AddAction
+		{
+			static void add(ActionDefLoader &ldr, const std::string &kw) { ldr.add(kw, &ActionDefLoader::action_def<T>); }
+		};
+
+		Demo &demo;
+		Msp::RefPtr<Action> action;
+
+	public:
+		ActionDefLoader(Sequencer &, Demo &);
+
+		Action *get_action() { return action.release(); }
+
+	protected:
+		virtual void action_loaded() { }
+
+	private:
+		template<typename T>
+		void action_def();
+
+		friend class Sequencer;
+	};
+
 	struct Segment
 	{
 		Action *action;
@@ -18,10 +71,29 @@ private:
 		float end_beat;
 	};
 
+	class SegmentLoader: public ActionDefLoader
+	{
+	private:
+		float start_beat;
+		float end_beat;
+
+	public:
+		SegmentLoader(Sequencer &, float, float, Demo &);
+
+	private:
+		virtual void action_loaded();
+
+		void apply(const std::string &);
+	};
+
 public:
 	sigc::signal<void> signal_finished;
 
 private:
+	DataFile::LoadableTypeRegistry<ActionDefLoader, ActionDefLoader::AddAction> action_registry;
+	std::map<std::string, Action *> named_actions;
+	std::vector<Action *> anonymous_actions;
+
 	Msp::Time::TimeDelta secs_per_beat;
 	std::vector<Action *> static_actions;
 	std::vector<Segment> segments;
@@ -34,6 +106,10 @@ private:
 public:
 	Sequencer(float = 120.0f);
 
+	template<typename T>
+	void register_action_type(const std::string &);
+	void define_action(const std::string &, Action &);
+
 	void set_beats_per_minute(float);
 	float get_beats_per_minute() const { return Msp::Time::min/secs_per_beat; }
 	void add_static_action(Action &);
@@ -49,4 +125,26 @@ public:
 	float get_current_beat() const { return beat; }
 };
 
+template<typename T>
+inline void Sequencer::register_action_type(const std::string &n)
+{
+	action_registry.register_type<T>(n);
+}
+
+template<typename T>
+void Sequencer::ActionDefLoader::action_def()
+{
+	if(action)
+		throw std::runtime_error("Only one action per definition is allowed");
+
+	Msp::RefPtr<T> act = new T;
+	load_sub(*act, demo);
+	act->validate();
+	action = act.release();
+	action_loaded();
+}
+
+} // namespace DemoScene
+} // namespace Msp
+
 #endif