From 592fb437e7ca10087c4b34f1517e0d4549ba4493 Mon Sep 17 00:00:00 2001
From: lisyarus <lisyarus@gmail.com>
Date: Thu, 8 Dec 2022 18:00:01 +0300
Subject: [PATCH] Electron crystal simulation computation time measurement

---
 examples/electron_crystal.cpp | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/examples/electron_crystal.cpp b/examples/electron_crystal.cpp
index 2bf36838..e3a6dde4 100644
--- a/examples/electron_crystal.cpp
+++ b/examples/electron_crystal.cpp
@@ -19,6 +19,7 @@
 #include <psemek/ui/event_interceptor.hpp>
 #include <psemek/util/to_string.hpp>
 #include <psemek/util/recursive.hpp>
+#include <psemek/util/moving_average.hpp>
 
 #include <vector>
 
@@ -39,6 +40,8 @@ struct main_scene
 	float step = 1e-4f;
 	float multipole_threshold = 2.f;
 
+	std::shared_ptr<ui::label> time_value_label;
+
 	random::generator rng{random::device{}};
 
 	std::vector<geom::point<float, 2>> points;
@@ -48,6 +51,7 @@ struct main_scene
 	gfx::painter painter;
 
 	util::clock<> clock;
+	util::moving_average<float> update_time{64};
 };
 
 main_scene::main_scene(ui::controller & ui_controller)
@@ -127,7 +131,14 @@ main_scene::main_scene(ui::controller & ui_controller)
 	});
 	precision_slider->set_value(15);
 
-	layout->set_size(3, 3);
+	auto time_name_label = element_factory.make_label("Computation time:");
+	time_name_label->set_valign(ui::label::valignment::center);
+	time_name_label->set_halign(ui::label::halignment::right);
+	time_value_label = element_factory.make_label("");
+	time_value_label->set_valign(ui::label::valignment::center);
+	time_value_label->set_halign(ui::label::halignment::center);
+
+	layout->set_size(4, 3);
 	layout->set_column_weight(0, 0.5f);
 	layout->set_column_weight(1, 0.5f);
 	layout->set(0, 0, count_name_label);
@@ -139,6 +150,8 @@ main_scene::main_scene(ui::controller & ui_controller)
 	layout->set(2, 0, precision_name_label);
 	layout->set(2, 1, precision_value_label);
 	layout->set(2, 2, precision_slider);
+	layout->set(3, 0, time_name_label);
+	layout->set(3, 1, time_value_label);
 
 	ui::style style;
 	style.font = ui::make_default_9x12_font();
@@ -310,6 +323,9 @@ void main_scene::update()
 			edges.push_back({v0, v1});
 		degree[v0]++;
 	}
+
+	update_time.push(clock.count());
+	time_value_label->set_text(util::to_string(std::setprecision(3), std::fixed, update_time.average() * 1000.f, "ms"));
 }
 
 void main_scene::present()