From db41d9081a61b2370a4633568a9cb01bc948a5ab Mon Sep 17 00:00:00 2001
From: Reinhold Gschweicher <pyro4hell@gmail.com>
Date: Mon, 14 Mar 2022 20:28:51 +0100
Subject: [PATCH 1/2] DateTimeController: make possible functions const

MonthShortToString and DayOfWeekShortToString don't change the
underlying object. Those are just getters and can be declared `const`.
---
 src/components/datetime/DateTimeController.cpp | 4 ++--
 src/components/datetime/DateTimeController.h   | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/components/datetime/DateTimeController.cpp b/src/components/datetime/DateTimeController.cpp
index e0d12431..3bfbdc7e 100644
--- a/src/components/datetime/DateTimeController.cpp
+++ b/src/components/datetime/DateTimeController.cpp
@@ -108,11 +108,11 @@ void DateTime::UpdateTime(uint32_t systickCounter) {
   }
 }
 
-const char* DateTime::MonthShortToString() {
+const char* DateTime::MonthShortToString() const {
   return MonthsString[static_cast<uint8_t>(month)];
 }
 
-const char* DateTime::DayOfWeekShortToString() {
+const char* DateTime::DayOfWeekShortToString() const {
   return DaysStringShort[static_cast<uint8_t>(dayOfWeek)];
 }
 
diff --git a/src/components/datetime/DateTimeController.h b/src/components/datetime/DateTimeController.h
index 6e5ee3ca..00bbc2ee 100644
--- a/src/components/datetime/DateTimeController.h
+++ b/src/components/datetime/DateTimeController.h
@@ -61,8 +61,8 @@ namespace Pinetime {
         return second;
       }
 
-      const char* MonthShortToString();
-      const char* DayOfWeekShortToString();
+      const char* MonthShortToString() const;
+      const char* DayOfWeekShortToString() const;
       static const char* MonthShortToStringLow(Months month);
 
       std::chrono::time_point<std::chrono::system_clock, std::chrono::nanoseconds> CurrentDateTime() const {

From bebc072e78145af69aacb1c2c9549da8653b7b0c Mon Sep 17 00:00:00 2001
From: Reinhold Gschweicher <pyro4hell@gmail.com>
Date: Mon, 14 Mar 2022 20:55:20 +0100
Subject: [PATCH 2/2] WatchFaceAnalog: const ref to dateTimeController

The clock app only reads from the dateTimeController, never modifies it.
---
 src/displayapp/screens/WatchFaceAnalog.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/displayapp/screens/WatchFaceAnalog.h b/src/displayapp/screens/WatchFaceAnalog.h
index a18eb299..3377d39e 100644
--- a/src/displayapp/screens/WatchFaceAnalog.h
+++ b/src/displayapp/screens/WatchFaceAnalog.h
@@ -74,7 +74,7 @@ namespace Pinetime {
         lv_obj_t* batteryIcon;
         lv_obj_t* notificationIcon;
 
-        Controllers::DateTime& dateTimeController;
+        const Controllers::DateTime& dateTimeController;
         Controllers::Battery& batteryController;
         Controllers::Ble& bleController;
         Controllers::NotificationManager& notificationManager;