Add comments to states.

source/appstates/ProgressState.cpp

@@ -21,6 +21,8 @@ namespace
     constexpr double SIZE_BAR_WIDTH    = 688.0f;
 }
 
+//                      ---- Construction ----
+
 ProgressState::ProgressState(sys::threadpool::JobFunction function, sys::Task::TaskData taskData)
     : m_transition(0, 0, 32, 32, 0, 0, 720, 256, ui::Transition::DEFAULT_THRESHOLD)
 {
@@ -28,6 +30,8 @@ ProgressState::ProgressState(sys::threadpool::JobFunction function, sys::Task::T
     m_task = std::make_unique<sys::ProgressTask>(function, taskData);
 }
 
+//                      ---- Public functions ----
+
 void ProgressState::update()
 {
     BaseTask::update_loading_glyph();
@@ -80,6 +84,8 @@ void ProgressState::render()
                       m_percentageString);
 }
 
+//                      ---- Private functions ----
+
 void ProgressState::initialize_static_members()
 {
     static constexpr std::string_view BAR_EDGE_NAME = "BarEdges";