X-Git-Url: http://git.tdb.fi/?p=libs%2Fdemoscene.git;a=blobdiff_plain;f=source%2Fsequencer.h;h=387cdde3cfbc0118047f045c37b5b8de3a198e3d;hp=e6eb2b7849381a4f4ad2f4a6196c71610040d186;hb=2a957e891f86cc692ddbb80f71b1478ea03d5a4f;hpb=da21a5a971c2dfa3fdd729c4f799908253bb3873

diff --git a/source/sequencer.h b/source/sequencer.h
index e6eb2b7..387cdde 100644
--- a/source/sequencer.h
+++ b/source/sequencer.h
@@ -3,14 +3,72 @@
 
 #include <vector>
 #include <sigc++/signal.h>
+#include <msp/core/maputils.h>
+#include <msp/core/refptr.h>
+#include <msp/datafile/objectloader.h>
 #include <msp/time/timedelta.h>
 #include <msp/time/timestamp.h>
+#include "action.h"
 
-class Action;
+class Demo;
 
 class Sequencer
 {
+public:
+	class Loader: public Msp::DataFile::ObjectLoader<Sequencer>
+	{
+	private:
+		Demo &demo;
+
+	public:
+		Loader(Sequencer &, Demo &);
+
+	private:
+		void define_action(const std::string &);
+		void instant(float);
+		void segment(float, float);
+	};
+
 private:
+	class ActionDefLoader;
+
+	class RegisteredAction
+	{
+	public:
+		typedef void (ActionDefLoader::*LoaderFunc)();
+
+		virtual ~RegisteredAction() { }
+		virtual LoaderFunc get_loader_func() const = 0;
+	};
+
+	template<typename T>
+	class RegisteredActionType: public RegisteredAction
+	{
+	public:
+		virtual LoaderFunc get_loader_func() const;
+	};
+
+	class ActionDefLoader: public Msp::DataFile::ObjectLoader<Sequencer>
+	{
+	private:
+		Demo &demo;
+		Msp::RefPtr<Action> action;
+
+	public:
+		ActionDefLoader(Sequencer &, Demo &);
+
+		Action *get_action() { return action.release(); }
+
+	private:
+		virtual void finished();
+
+		template<typename T>
+		void action_def();
+
+		template<typename T>
+		friend class RegisteredActionType;
+	};
+
 	struct Segment
 	{
 		Action *action;
@@ -18,10 +76,26 @@ private:
 		float end_beat;
 	};
 
+	class SegmentLoader: public Msp::DataFile::ObjectLoader<Sequencer>
+	{
+	private:
+		float start_beat;
+		float end_beat;
+
+	public:
+		SegmentLoader(Sequencer &, float, float);
+
+	private:
+		void apply(const std::string &);
+	};
+
 public:
 	sigc::signal<void> signal_finished;
 
 private:
+	std::map<std::string, RegisteredAction *> action_types;
+	std::map<std::string, Action *> named_actions;
+
 	Msp::Time::TimeDelta secs_per_beat;
 	std::vector<Action *> static_actions;
 	std::vector<Segment> segments;
@@ -34,6 +108,9 @@ private:
 public:
 	Sequencer(float = 120.0f);
 
+	template<typename T>
+	void register_action_type(const std::string &);
+
 	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 +126,30 @@ public:
 	float get_current_beat() const { return beat; }
 };
 
+template<typename T>
+inline void Sequencer::register_action_type(const std::string &n)
+{
+	if(action_types.count(n))
+		throw Msp::key_error(n);
+
+	action_types[n] = new RegisteredActionType<T>;
+}
+
+template<typename T>
+Sequencer::RegisteredAction::LoaderFunc Sequencer::RegisteredActionType<T>::get_loader_func() const
+{
+	return &ActionDefLoader::action_def<T>;
+}
+
+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);
+	action = act;
+}
+
 #endif