handle window focus (dont run fade and read while not focused)

src/chat_gui4.cpp

@@ -272,7 +272,7 @@ ChatGui4::~ChatGui4(void) {
 	//}
 }
 
-float ChatGui4::render(float time_delta, bool window_hidden) {
+float ChatGui4::render(float time_delta, bool window_hidden, bool window_focused) {
 	_fss.render();
 	_sip.render(time_delta);
 	_b_tc.update();
@@ -533,17 +533,17 @@ float ChatGui4::render(float time_delta, bool window_hidden) {
 						Message3Registry& msg_reg = *msg_reg_ptr;
 
 						// do systems TODO: extract
-						{ // fade system
+						if (window_focused) { // fade system
 							std::vector<Message3> to_remove;
 							msg_reg.view<Components::UnreadFade>().each([&to_remove, time_delta](const Message3 e, Components::UnreadFade& fade) {
 								// TODO: configurable
-								const float fade_duration = 7.5f;
-								fade.fade -= 1.f/fade_duration * std::min<float>(time_delta, 1.f/8.f); // fps but not below 8 for smooth-ish fade
+								const float fade_duration = 5.f;
+								fade.fade -= 1.f/fade_duration * std::min<float>(time_delta, 1.f/10.f); // fps but not below 10 for smooth-ish fade
 								if (fade.fade <= 0.f) {
 									to_remove.push_back(e);
 								}
 							});
-							msg_reg.remove<Components::UnreadFade>(to_remove.cbegin(), to_remove.cend());
+							msg_reg.remove<Message::Components::TagUnread, Components::UnreadFade>(to_remove.cbegin(), to_remove.cend());
 						}
 
 						//auto tmp_view = msg_reg.view<Message::Components::ContactFrom, Message::Components::ContactTo, Message::Components::Timestamp>();
@@ -611,14 +611,22 @@ float ChatGui4::render(float time_delta, bool window_hidden) {
 								// use username as visibility test
 								if (ImGui::IsItemVisible()) {
 									if (msg_reg.all_of<Message::Components::TagUnread>(e)) {
-										// get time now
-										const uint64_t ts_now = std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now().time_since_epoch()).count();
-										msg_reg.emplace_or_replace<Message::Components::Read>(e, ts_now);
-										msg_reg.remove<Message::Components::TagUnread>(e);
-										msg_reg.emplace_or_replace<Components::UnreadFade>(e, 1.f);
-
-										// we remove the unread tag here
-										_rmm.throwEventUpdate(msg_reg, e);
+										if (!msg_reg.all_of<Components::UnreadFade>(e)) {
+											if (msg_reg.all_of<Message::Components::Read>(e)) {
+												// skip fade, we might get here by merging
+												msg_reg.remove<Message::Components::TagUnread>(e);
+											} else {
+												// get time now
+												const uint64_t ts_now = std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now().time_since_epoch()).count();
+												msg_reg.emplace_or_replace<Message::Components::Read>(e, ts_now);
+												msg_reg.emplace_or_replace<Components::UnreadFade>(e, 1.f);
+											}
+											_rmm.throwEventUpdate(msg_reg, e);
+										} else if (window_focused) {
+											// remove unread early, when we focus the window
+											msg_reg.remove<Message::Components::TagUnread>(e);
+											_rmm.throwEventUpdate(msg_reg, e);
+										}
 									}
 
 									// track view

src/chat_gui4.hpp

@@ -72,7 +72,7 @@ class ChatGui4 : public ObjectStoreEventI {
 		~ChatGui4(void);
 
 	public:
-		float render(float time_delta, bool window_hidden);
+		float render(float time_delta, bool window_hidden, bool window_focused);
 
 	public:
 		void sendFilePath(std::string_view file_path);

src/main.cpp

@@ -181,15 +181,6 @@ int main(int argc, char** argv) {
 			last_time_render = new_time;
 		}
 
-		//// TODO: seperate out render and tick
-		//const float time_to_next_loop = std::min<float>(screen->nextRender(), screen->nextTick());
-
-		//std::this_thread::sleep_for( // time left to get to 60fps
-			//std::chrono::duration<float, std::chrono::seconds::period>(time_to_next_loop)
-			//- std::chrono::duration<float, std::chrono::seconds::period>(std::chrono::steady_clock::now() - new_time) // time used for rendering
-		//);
-
-
 #if 1
 		if (render || tick) {
 			// why is windows like this

src/main_screen.cpp

@@ -328,6 +328,14 @@ bool MainScreen::handleEvent(SDL_Event& e) {
 		return true; // forward?
 	}
 
+	if (e.type == SDL_EVENT_WINDOW_FOCUS_GAINED) {
+		_window_focused = true;
+	}
+
+	if (e.type == SDL_EVENT_WINDOW_FOCUS_LOST) {
+		_window_focused = false;
+	}
+
 	if (
 		_fps_perf_mode <= 1 && (
 			// those are all the events imgui polls
@@ -391,7 +399,11 @@ Screen* MainScreen::render(float time_delta, bool&) {
 
 	si.render(time_delta);
 
-	const float cg_interval = cg.render(time_delta, _window_hidden); // render
+	if (_window_hidden && _window_focused) {
+		_window_focused = false;
+	}
+
+	const float cg_interval = cg.render(time_delta, _window_hidden, _window_focused); // render
 	sw.render(); // render
 	osui.render();
 	tuiu.render(); // render

src/main_screen.hpp

@@ -112,6 +112,7 @@ struct MainScreen final : public Screen {
 	bool _show_tool_id_stack {false};
 	bool _show_tool_demo {false};
 
+	bool _window_focused {true};
 	bool _window_hidden {false};
 	uint64_t _window_hidden_ts {0};
 	float _time_since_event {0.f};

src/tox_netprof_ui.cpp

@@ -288,8 +288,8 @@ float ToxNetprofUI::render(float time_delta) {
 		if (ImGui::Begin("Tox Netprof histograms", &_show_window_histo)) {
 			if (_enabled) {
 				const float line_height = ImGui::GetTextLineHeight();
-				ImGui::PlotHistogram("udp total count sent##histograms", _udp_tctx.data(), _udp_tctx.size(), 0, nullptr, 0.f, FLT_MAX, {0, 3*line_height});
-				ImGui::PlotHistogram("udp total count received##histograms", _udp_tcrx.data(), _udp_tcrx.size(), 0, nullptr, 0.f, FLT_MAX, {0, 3*line_height});
+				ImGui::PlotHistogram("udp total packets sent##histograms", _udp_tctx.data(), _udp_tctx.size(), 0, nullptr, 0.f, FLT_MAX, {0, 3*line_height});
+				ImGui::PlotHistogram("udp total packets received##histograms", _udp_tcrx.data(), _udp_tcrx.size(), 0, nullptr, 0.f, FLT_MAX, {0, 3*line_height});
 				ImGui::PlotHistogram("udp total bytes sent##histograms", _udp_tbtx.data(), _udp_tbtx.size(), 0, nullptr, 0.f, FLT_MAX, {0, 3*line_height});
 				ImGui::PlotHistogram("udp total bytes received##histograms", _udp_tbrx.data(), _udp_tbrx.size(), 0, nullptr, 0.f, FLT_MAX, {0, 3*line_height});
 			} else {