feat: cpu module

.vscode/settings.json

@@ -0,0 +1,5 @@
+{
+    "files.associations": {
+        "atomic": "cpp"
+    }
+}

include/modules/cpu.hpp

@@ -0,0 +1,20 @@
+#pragma once
+
+#include <gtkmm.h>
+#include <fmt/format.h>
+#include <sys/sysinfo.h>
+#include <thread>
+#include "util/chrono.hpp"
+
+namespace waybar::modules {
+
+  class Cpu {
+    public:
+      Cpu();
+      operator Gtk::Widget &();
+    private:
+      Gtk::Label _label;
+      waybar::util::SleeperThread _thread;
+  };
+
+}

resources/style.css

@@ -11,11 +11,6 @@ window {
     color: white;
 }
 
-.focused-window-title {
-    padding: 0px 10px;
-    min-height: 0px;
-}
-
 .workspace-selector button {
     padding: 0 5px;
     background: transparent;
@@ -28,15 +23,16 @@ window {
     border-bottom: 3px solid white;
 }
 
-.clock-widget {
-    background-color: #64727D;
+.clock-widget, .battery-status, .cpu-widget, .memory-widget {
     padding: 0 10px;
     margin: 0 5px;
 }
 
+.clock-widget {
+    background-color: #64727D;
+}
+
 .battery-status {
-    padding: 0 10px;
-    margin: 0 5px;
     background-color: #ffffff;
     color: black;
 }
@@ -46,8 +42,11 @@ window {
     background-color: #26A65B;
 }
 
+.cpu-widget {
+    background: #2ecc71;
+    color: #000000;
+}
+
 .memory-widget {
-    padding: 0 10px;
-    margin: 0 5px;
     background: #9b59b6;
 }

src/bar.cpp

@@ -8,6 +8,7 @@
 #include "modules/workspaces.hpp"
 #include "modules/battery.hpp"
 #include "modules/memory.hpp"
+#include "modules/cpu.hpp"
 
 static void handle_geometry(void *data, struct wl_output *wl_output, int32_t x,
   int32_t y, int32_t physical_width, int32_t physical_height, int32_t subpixel,
@@ -149,10 +150,12 @@ auto waybar::Bar::setup_widgets() -> void
   auto &workspace_selector = *new waybar::modules::WorkspaceSelector(*this);
   auto &battery = *new waybar::modules::Battery();
   auto &memory = *new waybar::modules::Memory();
+  auto &cpu = *new waybar::modules::Cpu();
 
   left.pack_start(workspace_selector, false, true, 0);
   // center.pack_start(workspace_selector, true, false, 10);
   right.pack_end(clock, false, false, 0);
   right.pack_end(battery, false, false, 0);
   right.pack_end(memory, false, false, 0);
+  right.pack_end(cpu, false, false, 0);
 }

src/modules/cpu.cpp

@@ -0,0 +1,20 @@
+#include "modules/cpu.hpp"
+#include <iostream>
+
+waybar::modules::Cpu::Cpu()
+{
+  _label.get_style_context()->add_class("cpu-widget");
+  _thread = [this] {
+    struct sysinfo info;
+    if (!sysinfo(&info)) {
+      float f_load = 1.f / (1 << SI_LOAD_SHIFT);
+      _label.set_text(fmt::format("{:.{}f}% ",
+      	info.loads[0] * f_load * 100 / get_nprocs(), 1));
+    }
+    _thread.sleep_for(chrono::seconds(30));
+  };
+};
+
+waybar::modules::Cpu::operator Gtk::Widget &() {
+  return _label;
+}