Feat icons vector (#716)

include/ALabel.hpp

@@ -14,6 +14,7 @@ class ALabel : public AModule {
   virtual ~ALabel() = default;
   virtual auto        update() -> void;
   virtual std::string getIcon(uint16_t, const std::string &alt = "", uint16_t max = 0);
+  virtual std::string getIcon(uint16_t, std::vector<std::string> &alts, uint16_t max = 0);
 
  protected:
   Gtk::Label                 label_;

src/ALabel.cpp

@@ -54,6 +54,29 @@ std::string ALabel::getIcon(uint16_t percentage, const std::string& alt, uint16_
   return "";
 }
 
+std::string ALabel::getIcon(uint16_t percentage, std::vector<std::string>& alts, uint16_t max) {
+  auto format_icons = config_["format-icons"];
+  if (format_icons.isObject()) {
+    for (const auto& alt : alts) {
+      if (!alt.empty() && (format_icons[alt].isString() || format_icons[alt].isArray())) {
+        format_icons = format_icons[alt];
+        break;
+      } else {
+        format_icons = format_icons["default"];
+      }
+    }
+  }
+  if (format_icons.isArray()) {
+    auto size = format_icons.size();
+    auto idx = std::clamp(percentage / ((max == 0 ? 100 : max) / size), 0U, size - 1);
+    format_icons = format_icons[idx];
+  }
+  if (format_icons.isString()) {
+    return format_icons.asString();
+  }
+  return "";
+}
+
 bool waybar::ALabel::handleToggle(GdkEventButton* const& e) {
   if (config_["format-alt-click"].isUInt() && e->button == config_["format-alt-click"].asUInt()) {
     alt_ = !alt_;

src/modules/battery.cpp

@@ -1,4 +1,5 @@
 #include "modules/battery.hpp"
+
 #include <spdlog/spdlog.h>
 
 waybar::modules::Battery::Battery(const std::string& id, const Json::Value& config)
@@ -173,11 +174,9 @@ auto waybar::modules::Battery::update() -> void {
     }
     label_.set_tooltip_text(tooltip_text);
   }
-  // Transform to lowercase
-  std::transform(status.begin(), status.end(), status.begin(), ::tolower);
-  // Replace space with dash
+  // Transform to lowercase  and replace space with dash
   std::transform(status.begin(), status.end(), status.begin(), [](char ch) {
-    return ch == ' ' ? '-' : ch;
+    return ch == ' ' ? '-' : std::tolower(ch);
   });
   auto format = format_;
   auto state = getState(capacity, true);
@@ -197,9 +196,10 @@ auto waybar::modules::Battery::update() -> void {
     event_box_.hide();
   } else {
     event_box_.show();
+    auto icons = std::vector<std::string>{status + "-" + state, status, state};
     label_.set_markup(fmt::format(format,
                                   fmt::arg("capacity", capacity),
-                                  fmt::arg("icon", getIcon(capacity, state)),
+                                  fmt::arg("icon", getIcon(capacity, icons)),
                                   fmt::arg("time", formatTimeRemaining(time_remaining))));
   }
   // Call parent update