Logger is more consistent

Attractor.hpp

@@ -37,12 +37,12 @@ public:
 	}
 
 	void init_range() {
-		ProgressIndicator p(LOG_VERBOSE, std::cout, "searching for parameters");
+		ProgressIndicator p(std::cout, LOG_VERBOSE, "searching for parameters");
 		for(unsigned int i = 0; i < 1000000; i++) {
 			iterate();
 			if(kernel->convergent() || kernel->divergent()){
 				kernel->generate_random_parameters();
-				p.update();
+				p.show();
 				i = 0;
 			}
 		}

Logger.hpp

@@ -34,27 +34,41 @@ enum LoggingLevels {
  Questions/Suggestions mail nick@astrant.net
  */
 
-struct Logger {
+struct LoggingBase {
-	Logger(LoggingLevels level, std::ostream& logging_stream_, std::string prefix_ = std::string(""))
+protected:
-	: logging_stream(&logging_stream_)
+	LoggingBase(std::ostream & out, LoggingLevels level)
-	, prefix(prefix_)
+	: out(out)
 	, level(level)
 	{}
 	
+	bool shouldSkip(){
+		return verbose < level;
+	}
+	
+	std::ostream & out;
+	LoggingLevels level;
+};
+
+struct Logger : public LoggingBase {
+	Logger(std::ostream& logging_stream_, LoggingLevels level, std::string prefix_ = "")
+	: LoggingBase(logging_stream_, level)
+	, prefix(prefix_)
+	{}
+	
 	void log(std::string what){
-		if (verbose < level) return;
+		if (shouldSkip()) return;
-		*logging_stream << get_prefix() << "(" << what << ") took place at (" << boost::posix_time::microsec_clock::local_time() << std::endl;
+		out << get_prefix() << "(" << what << ") took place at (" << boost::posix_time::microsec_clock::local_time() << std::endl;
 	}
 	
 	void start(std::string what){
-		if (verbose < level) return;
+		if (shouldSkip()) return;
 		Event e;
 		e.start = boost::posix_time::microsec_clock::local_time();
 		e.name = what;
 		
 		EventMap::iterator it = event_map.find(what);
 		if(it != event_map.end()){
-			*logging_stream << get_prefix() << "WARNING: Overwriting event(" << e.name << "), did you forget to call stop()?";
+			out << get_prefix() << "WARNING: Overwriting event(" << e.name << "), did you forget to call stop()?";
 		} else {
 			event_name_stack.push(what);
 		}
@@ -63,7 +77,7 @@ struct Logger {
 	}
 	
 	void stop() {
-		if (verbose < level) return;
+		if (shouldSkip()) return;
 		assert(!event_name_stack.empty());
 		stop(event_name_stack.top());
 	}
@@ -72,7 +86,7 @@ private:
 	void stop(std::string what){
 		EventMap::iterator it = event_map.find(what);
 		if(it == event_map.end()){
-			*logging_stream << get_prefix() << "WARNING: No such, or already stopped, event(" << what << "), did you forget to call start()?";
+			out << get_prefix() << "WARNING: No such, or already stopped, event(" << what << "), did you forget to call start()?";
 		} else {
 			it->second.end = boost::posix_time::microsec_clock::local_time();
 			log_event(it->second);
@@ -95,12 +109,10 @@ private:
 	// A stack used by 0-parameter stop() to stop the last start()ed event.
 	std::stack<std::string> event_name_stack;
 	
-	std::ostream* logging_stream;
-	
 	std::string prefix;
 	
 	void log_event(Event const& e){
-		*logging_stream << get_prefix() << "Event(" << e.name << ") started at (" << e.start << ") ended at (" << e.end << ") duration (" << e.end - e.start << " ms) " << std::endl;
+		out << get_prefix() << "Event(" << e.name << ") started at (" << e.start << ") ended at (" << e.end << ") duration (" << e.end - e.start << " ms) " << std::endl;
 	}
 	
 	std::string get_prefix() const {
@@ -110,44 +122,30 @@ private:
 			return prefix + ": "; 
 		}
 	}
-	
-	LoggingLevels level;
 };
 
 /*
  My progressbar class (as seen on github)
  */
 
-struct Progressbar {
+struct Progressbar : public LoggingBase {
-	Progressbar(LoggingLevels level, std::ostream & out, std::string prefix = "", std::string begin = "", std::string end = "")
+	Progressbar(std::ostream & out, LoggingLevels level, std::string prefix = "")
-	: out(out)
+	: LoggingBase(out, level)
-	, begin(begin)
 	, prefix(prefix)
-	, end(end)
-	, level(level)
 	{
-		if (verbose < level) return;
+		if (shouldSkip()) return;
-		if (begin != "") {
-			out << begin << std::endl;
-		}
-		
 		show(0, 1, ' ');
 	}
 	
 	~Progressbar(){
-		if (verbose < level) return;
+		if (shouldSkip()) return;
 		show(1, 1, '=');
-		
-		if (end != "") {
-			out << "\n" << end << std::endl;
-		} else {
 		out << std::endl;
 	}
-	}
 	
 	template <typename T>
-	void show(T const & progress, T const & max, char delim = '>', char filling = '='){
+	void show(T const & progress, T const & max, char delim = '>'){
-		if (verbose < level) return;
+		if (shouldSkip()) return;
 		out << "\r";
 		
 		size_t width = 79;	// default terminal size :D
@@ -162,47 +160,64 @@ struct Progressbar {
 		double ratio = (double) progress / (double) max;
 		size_t length = width * ratio;
 		
-		std::string fill(length, filling);
+		std::string fill(length, '=');
 		std::string empty(width - length, ' ');
 		out << '[' << fill << delim << empty << ']' << std::flush;
 	}
 	
 private:
-	std::ostream & out;
-	std::string begin;
 	std::string prefix;
-	std::string end;
-	
-	LoggingLevels level;
 };
 
-struct ProgressIndicator : private Progressbar {
+struct ProgressIndicator : public LoggingBase {
-	ProgressIndicator(LoggingLevels level, std::ostream & out, std::string prefix = "", std::string begin = "", std::string end = "")
+	ProgressIndicator(std::ostream & out, LoggingLevels level, std::string prefix = "")
-	: Progressbar(level, out, prefix, begin, end)
+	: LoggingBase(out, level)
-	, progress(0.0)
+	, prefix(prefix)
-	, backwards(false)
+	, wave("`*-,_,-*`")
-	{}
+	, previous_time(boost::posix_time::microsec_clock::local_time() - boost::posix_time::seconds(1.0))
+	, progress(0)
+	{
+		show();
+	}
 	
-	void update(double dt = 0.037){
+	~ProgressIndicator(){
-		if(!backwards){
+		show("=");
-			progress += dt;
+		out << std::endl;
-			if(progress >= 1.0){
-				progress = 1.0;
-				backwards = true;
 	}
-		} else {
+	
-			progress -= dt;
+	void show(std::string const & alt_wave = ""){
-			if(progress <= 0.0){
+		if (shouldSkip()) return;
-				progress = 0.0;
+		
-				backwards = false;
+		boost::posix_time::ptime now = boost::posix_time::microsec_clock::local_time();
+		if(now - previous_time < boost::posix_time::milliseconds(50.0)) return;
+		
+		out << "\r";
+		
+		size_t width = 79;	// default terminal size :D
+		width -= 2;
+		if(prefix != ""){
+			width -= prefix.size() + 1;
+			out << prefix << ' ';
 		}
+		
+		std::string const & wave_to_use = (alt_wave == "") ? wave : alt_wave;
+		out << '[';
+		for(unsigned int i = 0; i < width; ++i){
+			out << wave_to_use[(i + progress) % wave_to_use.size()];
 		}
-		show(progress, 1.0, backwards ? '<' : '>', ' ');
+		out << ']' << std::flush;
+			
+		previous_time = now;
+		++progress;
+		if(progress >= wave.size())
+			progress = 0;
 	}
 	
 private:
-	double progress;
+	std::string prefix;
-	bool backwards;
+	std::string wave;
+	boost::posix_time::ptime previous_time;
+	unsigned int progress;
 };
 
 

main.cpp

@@ -28,8 +28,9 @@ std::string generate_filename(){
 	return std::string(filename);
 }
 
-void render(Attractor & myAttractor, Canvas2D & canvas, unsigned int iterations){
+template <typename C>
-	Progressbar progress(LOG_INFO, std::cout, "rendering");
+void render(Attractor & myAttractor, C & canvas, unsigned int iterations){
+	Progressbar progress(std::cout, LOG_INFO, "rendering");
 	for(unsigned int j = 1; j <= iterations; ++j) {
 		for(unsigned int i = 0; i < 1000000; ++i) {
 			myAttractor.iterate();
@@ -66,8 +67,8 @@ int main(int argc, char* argv[]) try {
 	
 	std::string filename = output_path + generate_filename();
 	
-	Logger logger(LOG_VERBOSE, std::cout);
 	Canvas2D canvas(width, height);
+	Logger logger(std::cout, LOG_VERBOSE);
 	{
 		Attractor my_attractor(attractorFile);