Refactoring map and ImGui functions from hover text

scwx-qt/source/scwx/qt/util/imgui.cpp

@@ -0,0 +1,105 @@
+#include <scwx/qt/util/imgui.hpp>
+#include <scwx/qt/manager/resource_manager.hpp>
+#include <scwx/qt/manager/settings_manager.hpp>
+#include <scwx/util/logger.hpp>
+
+#include <mutex>
+
+#include <imgui.h>
+
+namespace scwx
+{
+namespace qt
+{
+namespace util
+{
+
+static const std::string logPrefix_ = "scwx::qt::util::imgui";
+static const auto        logger_    = scwx::util::Logger::Create(logPrefix_);
+
+class ImGui::Impl
+{
+public:
+   explicit Impl() {}
+   ~Impl() {}
+
+   void Initialize();
+   void UpdateMonospaceFont();
+
+   bool initialized_ {false};
+
+   ImFont* monospaceFont_ {nullptr};
+};
+
+ImGui::ImGui() : p(std::make_unique<Impl>()) {}
+ImGui::~ImGui() = default;
+
+ImGui::ImGui(ImGui&&) noexcept            = default;
+ImGui& ImGui::operator=(ImGui&&) noexcept = default;
+
+void ImGui::Impl::Initialize()
+{
+   if (initialized_)
+   {
+      return;
+   }
+
+   logger_->debug("Initialize");
+
+   // Configure monospace font
+   UpdateMonospaceFont();
+   manager::SettingsManager::general_settings()
+      .font_sizes()
+      .RegisterValueChangedCallback([this](const std::vector<std::int64_t>&)
+                                    { UpdateMonospaceFont(); });
+
+   initialized_ = true;
+}
+
+void ImGui::Impl::UpdateMonospaceFont()
+{
+   // Get monospace font size
+   std::size_t fontSize = 16;
+   auto        fontSizes =
+      manager::SettingsManager::general_settings().font_sizes().GetValue();
+   if (fontSizes.size() > 1)
+   {
+      fontSize = fontSizes[1];
+   }
+   else if (fontSizes.size() > 0)
+   {
+      fontSize = fontSizes[0];
+   }
+
+   // Get monospace font pointer
+   auto monospace =
+      manager::ResourceManager::Font(types::Font::Inconsolata_Regular);
+   auto monospaceFont = monospace->ImGuiFont(fontSize);
+
+   // Store monospace font pointer if not null
+   if (monospaceFont != nullptr)
+   {
+      monospaceFont_ = monospace->ImGuiFont(fontSize);
+   }
+}
+
+void ImGui::DrawTooltip(const std::string& hoverText)
+{
+   p->Initialize();
+
+   ::ImGui::BeginTooltip();
+   ::ImGui::PushFont(p->monospaceFont_);
+   ::ImGui::TextUnformatted(hoverText.c_str());
+   ::ImGui::PopFont();
+   ::ImGui::EndTooltip();
+}
+
+ImGui& ImGui::Instance()
+{
+   static ImGui instance_ {};
+   return instance_;
+}
+
+} // namespace util
+} // namespace qt
+} // namespace scwx