Restore layout from a maximized box

src/btop_config.cpp

@@ -268,6 +268,7 @@ namespace Config {
 		{"lowcolor", false},
 		{"show_detailed", false},
 		{"proc_filtering", false},
+		{"is_maximized", false},
 	};
 	unordered_flat_map<std::string_view, bool> boolsTmp;
 
@@ -521,6 +522,20 @@ namespace Config {
 		return true;
 	}
 
+	void restore(const string& boxes) {
+		current_boxes.clear();
+		current_boxes = ssplit(boxes);
+		Config::set("shown_boxes", boxes);
+		Config::set("is_maximized", false);
+	}
+
+	void maximize_box(const string& box) {
+		current_boxes.clear();
+		current_boxes.push_back(box);
+		Config::set("shown_boxes", box);
+		Config::set("is_maximized", true);
+	}
+
 	void toggle_box(const string& box) {
 		auto old_boxes = current_boxes;
 		auto box_pos = rng::find(current_boxes, box);
@@ -543,6 +558,7 @@ namespace Config {
 		}
 
 		Config::set("shown_boxes", new_boxes);
+		ssplit(new_boxes).size() == 1 ? Config::set("is_maximized", true) : Config::set("is_maximized", false);
 	}
 
 	void load(const fs::path& conf_file, vector<string>& load_warnings) {

src/btop_config.hpp

@@ -57,6 +57,12 @@ namespace Config {
 	//* Toggle box and update config string shown_boxes
 	void toggle_box(const string& box);
 
+	//* Maximize box and update config string shown_boxes
+	void maximize_box(const string& box);
+
+	//* Restore boxes and update config string shown_boxes
+	void restore(const string& boxes);
+
 	//* Parse and setup config value presets
 	bool presetsValid(const string& presets);
 

src/btop_input.cpp

@@ -22,6 +22,7 @@ tab-size = 4
 #include <thread>
 #include <mutex>
 #include <signal.h>
+#include <ctype.h>
 
 #include "btop_input.hpp"
 #include "btop_tools.hpp"
@@ -260,11 +261,29 @@ namespace Input {
 					Menu::show(Menu::Menus::Options);
 					return;
 				}
-				else if (is_in(key, "1", "2", "3", "4")) {
+				else if (is_in(key, "1", "2", "3", "4", "!", "@", "#", "$")) {
 					atomic_wait(Runner::active);
 					Config::current_preset = -1;
 					static const array<string, 4> boxes = {"cpu", "mem", "net", "proc"};
-					Config::toggle_box(boxes.at(std::stoi(key) - 1));
+					if (std::isdigit(key[0]))
+						Config::toggle_box(boxes.at(std::stoi(key) - 1));
+					else {
+						static const unordered_flat_map<string, string> binding = {
+							{"!", boxes.at(0)},
+							{"@", boxes.at(1)},
+							{"#", boxes.at(2)},
+							{"$", boxes.at(3)},
+						};
+						if (Config::getB("is_maximized") && Config::getS("shown_boxes") == binding.at(key)) {
+							string str_boxes;
+							for (const auto& b : boxes) str_boxes += b + ' ';
+							str_boxes.pop_back();
+
+							Config::restore(str_boxes);
+						}
+						else
+							Config::maximize_box(binding.at(key));
+					}
 					Draw::calcSizes();
 					Runner::run("all", false, true);
 					return;