libsaria: Add floats as preferenc type

Now I can store floating point numbers in addition to booleans.

include/libsaria/files.h

@@ -34,6 +34,7 @@ class OutFile
 
 		void write_str(string, bool);
 		void write_int(int, bool);
+		void write_float(float, bool);
 		void write_ui(unsigned int, bool);
 		void write_lui(long unsigned int, bool);
 		void write_ino(ino_t, bool);
@@ -50,6 +51,7 @@ class InFile
 		bool good();
 		string read_str();
 		int read_int();
+		float read_float();
 		unsigned int read_ui();
 		long unsigned int read_lui();
 		ino_t read_ino();

include/libsaria/prefs.h

@@ -11,8 +11,10 @@ namespace libsaria
 		void load();
 
 		void set(string, bool);
+		void set(string, float);
 
 		bool get_bool(string);
+		float get_float(string, float);
 	}
 }
 

libsaria/path/files.cpp

@@ -58,6 +58,13 @@ void OutFile::write_int(int i, bool end)
 	end_write(end);
 }
 
+void OutFile::write_float(float f, bool end)
+{
+	begin_write();
+	out << f;
+	end_write(end);
+}
+
 void OutFile::write_ui(unsigned int i, bool end)
 {
 	begin_write();
@@ -119,6 +126,13 @@ int InFile::read_int()
 	return i;
 }
 
+float InFile::read_float()
+{
+	float f;
+	in >> f;
+	return f;
+}
+
 unsigned int InFile::read_ui()
 {
 	unsigned int i;

libsaria/prefs.cpp

@@ -7,12 +7,14 @@ using namespace std;
 
 enum pref_t {
 	BOOL,
+	FLOAT,
 };
 
 struct Preference {
 	pref_t type;
 	union value {
 		bool boolean;
+		float floating;
 	} value_u;
 };
 
@@ -26,6 +28,11 @@ static void load_pref(InFile &in)
 	switch (p.type) {
 	case BOOL:
 		p.value_u.boolean = in.read_int();
+		println("preferences[" + key + "] = %d", p.value_u.boolean);
+		break;
+	case FLOAT:
+		p.value_u.floating = in.read_float();
+		println("preferences[" + key + "] = %f", p.value_u.floating);
 		break;
 	default:
 		break;
@@ -41,6 +48,9 @@ static void save_pref(string key, struct Preference &p, OutFile &out)
 	case BOOL:
 		out.write_int(p.value_u.boolean, true);
 		break;
+	case FLOAT:
+		out.write_float(p.value_u.floating, true);
+		break;
 	default:
 		out.write_str("", true);
 	}
@@ -72,6 +82,7 @@ namespace libsaria
 			return;
 
 		size = in.read_ui();
+		println("Preferences size: %d", size);
 		for (unsigned int i = 0; i < size; i++)
 			load_pref(in);
 	}
@@ -84,6 +95,14 @@ namespace libsaria
 		set_preference(key, p);
 	}
 
+	void prefs::set(string key, float value)
+	{
+		struct Preference p;
+		p.type = FLOAT;
+		p.value_u.floating = value;
+		set_preference(key, p);
+	}
+
 	bool prefs::get_bool(string key)
 	{
 		map<string, Preference>::iterator it;
@@ -95,4 +114,15 @@ namespace libsaria
 		return it->second.value_u.boolean;
 	}
 
+	float prefs::get_float(string key, float dfault)
+	{
+		map<string, Preference>::iterator it;
+		it = preferences.find(key);
+		if (it == preferences.end())
+			return dfault;
+		if (it->second.type != FLOAT)
+			return dfault;
+		return it->second.value_u.floating;
+	}
+
 }