Setting to disable DFU and FS access (#1891)

* Expose SystemTask dependency controllers

Expose NotificationManager and Settings for use by the feature in next commit.

This is a memory efficient way for accessing SystemTask dependencies from
controllers that have SystemTask injected as a dependency.
Looks like each direct dependency injection uses 4 bytes RAM.
As InfiniTime is close to running out of RAM (using 16 more bytes causes build
to fail with "ld: region RAM overflowed with stack") it might be helpful to use
this approach more.

* Add setting to disable DFU and FS access

.envrc

@@ -1 +0,0 @@
-use flake

.gitattributes

@@ -1,8 +1,9 @@
 # Set the default behavior, in case people don't have core.autocrlf set.
-* text=auto
+# Prevent build errors on non lf systems (like Windows), we need files with lf as newlines.
+* text=auto eol=lf
 
 # Explicitly declare text files you want to always be normalized and converted
-# to native line endings on checkout.
+# to lf line endings on checkout.
 *.c text
 *.cpp text
 *.h text
@@ -13,3 +14,6 @@
 *.bin binary
 *.jpg binary
 *.jpeg binary
+
+# Declare (Unix-style) files that will always have LF line endings on checkout.
+*.sh text eol=lf

.gitconfig

@@ -1,5 +0,0 @@
-[core]
-    whitespace = blank-at-eol,blank-at-eof,space-before-tab
-    autocrlf = input
-[apply]
-    whitespace = fix

.github/workflows/format.yml

@@ -29,7 +29,7 @@ jobs:
         run: tests/test-format.sh
 
       - name: Upload patches
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         if: failure()
         with:
           name: Patches

.github/workflows/main.yml

@@ -22,6 +22,8 @@ jobs:
       text_size: ${{ steps.output-sizes.outputs.text_size }}
       data_size: ${{ steps.output-sizes.outputs.data_size }}
       bss_size: ${{ steps.output-sizes.outputs.bss_size }}
+      firmware_artifact: ${{ steps.upload-firmware.outputs.artifact-id }}
+      resources_artifact: ${{ steps.upload-resources.outputs.artifact-id }}
     env:
       # InfiniTime sources are downloaded to the current directory.
       # Override SOURCES_DIR in build.sh
@@ -37,34 +39,44 @@ jobs:
           apt-get -y install --no-install-recommends python3-pil
       - name: Build
         shell: bash
-        run: /opt/build.sh all
+        run: |
+          git config --global --add safe.directory /__w/InfiniTime/InfiniTime
+          /opt/build.sh all
       - name: Output build size
         id: output-sizes
+        shell: bash
         run: |
           . /opt/build.sh
           .github/workflows/getSize.sh "$BUILD_DIR"/src/pinetime-app-*.out >> $GITHUB_OUTPUT
       # Unzip the package because Upload Artifact will zip up the files
       - name: Unzip DFU package
         run: unzip ./build/output/pinetime-mcuboot-app-dfu-*.zip -d ./build/output/pinetime-mcuboot-app-dfu
+      - name: Set ref_name, but replace slashes with dashes.
+        shell: bash
+        env:
+          ref_name: ${{ github.head_ref || github.ref_name }}
+        run: echo "REF_NAME=${ref_name//\//-}" >> $GITHUB_ENV
       - name: Upload DFU artifacts
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
-          name: InfiniTime DFU ${{ github.head_ref }}
+          name: InfiniTime DFU ${{ env.REF_NAME }}
           path: ./build/output/pinetime-mcuboot-app-dfu/*
       - name: Upload MCUBoot image artifacts
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
-          name: InfiniTime MCUBoot image ${{ github.head_ref }}
+          name: InfiniTime MCUBoot image ${{ env.REF_NAME }}
           path: ./build/output/pinetime-mcuboot-app-image-*.bin
       - name: Upload standalone ELF artifacts
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
+        id: upload-firmware
         with:
-          name: InfiniTime image ${{ github.head_ref }}
+          name: InfiniTime image ${{ env.REF_NAME }}
           path: ./build/output/src/pinetime-app-*.out
       - name: Upload resources artifacts
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
+        id: upload-resources
         with:
-          name: InfiniTime resources ${{ github.head_ref }}
+          name: InfiniTime resources ${{ env.REF_NAME }}
           path: ./build/output/infinitime-resources-*.zip
 
   build-simulator:
@@ -103,9 +115,9 @@ jobs:
         cmake --build build_lv_sim
 
     - name: Upload simulator executable
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
-        name: infinisim-${{ github.head_ref }}
+        name: infinisim-${{ env.REF_NAME }}
         path: build_lv_sim/infinisim
 
   get-base-ref-size:
@@ -150,6 +162,7 @@ jobs:
 
     - name: Output build size
       id: output-sizes
+      shell: bash
       run: |
         . /opt/build.sh
         .github/workflows/getSize.sh "$BUILD_DIR"/src/pinetime-app-*.out >> $GITHUB_OUTPUT
@@ -200,10 +213,12 @@ jobs:
         | text    | ${{ needs.build-firmware.outputs.text_size }}B | ${{ steps.output-sizes-diff.outputs.text_diff }}B |
         | data    | ${{ needs.build-firmware.outputs.data_size }}B | ${{ steps.output-sizes-diff.outputs.data_diff }}B |
         | bss     | ${{ needs.build-firmware.outputs.bss_size }}B  | ${{ steps.output-sizes-diff.outputs.bss_diff }}B  |
+
+        [Run in InfiniEmu](https://infiniemu.pipe01.net/?firmware=artifact://${{ github.repository }}/${{ needs.build-firmware.outputs.firmware_artifact }}&resources=artifact://${{ github.repository }}/${{ needs.build-firmware.outputs.resources_artifact }})
         EOF
 
     - name: Upload comment
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: comment
         path: comment

.gitignore

@@ -50,3 +50,8 @@ src/arm-none-eabi
 
 # clangd
 .cache/
+
+# npm files
+node_modules
+package.json
+package-lock.json

.gitmodules

@@ -4,9 +4,6 @@
 [submodule "src/libs/littlefs"]
 	path = src/libs/littlefs
 	url = https://github.com/littlefs-project/littlefs.git
-[submodule "src/libs/QCBOR"]
-	path = src/libs/QCBOR
-	url = https://github.com/laurencelundblade/QCBOR.git
 [submodule "src/libs/arduinoFFT"]
 	path = src/libs/arduinoFFT
 	url = https://github.com/kosme/arduinoFFT.git

.vscode/settings.json

@@ -66,8 +66,5 @@
         "streambuf": "cpp",
         "cinttypes": "cpp",
         "typeinfo": "cpp"
-    },
-    "cSpell.words": [
-        "Pinetime"
-    ]
+    }
 }

CMakeLists.txt

@@ -2,7 +2,7 @@ cmake_minimum_required(VERSION 3.10)
 
 set(CMAKE_BUILD_TYPE Release CACHE STRING "Choose Debug or Release")
 
-project(pinetime VERSION 1.15.1 LANGUAGES C CXX ASM)
+project(pinetime VERSION 1.15.0 LANGUAGES C CXX ASM)
 
 set(CMAKE_C_STANDARD 99)
 set(CMAKE_CXX_STANDARD 20)

README.md

@@ -1,8 +1,24 @@
-# [InfiniTime](https://github.com/InfiniTimeOrg/InfiniTime)
+<div align="center">
 
-![InfiniTime logo](doc/logo/infinitime-logo-small.jpg "InfiniTime Logo")
+![Header Image](doc/logo/watchface_collage.png)
 
-Fast open-source firmware for the [PineTime smartwatch](https://pine64.org/devices/pinetime/) with many features, written in modern C++.
+<br>
+
+[![GitHub tag](https://img.shields.io/github/tag/InfiniTimeOrg/InfiniTime?include_prereleases=&sort=semver&color=blue)](https://github.com/InfiniTimeOrg/InfiniTime/releases)
+[![GitHub License](https://img.shields.io/github/license/InfiniTimeOrg/InfiniTime)](https://github.com/InfiniTimeOrg/InfiniLink/blob/main/LICENSE)
+[![Issues - InfiniTime](https://img.shields.io/github/issues/InfiniTimeOrg/InfiniTime)](https://github.com/InfiniTimeOrg/InfiniTime/issues)
+[![Pull Requests - InfiniTime](https://img.shields.io/github/issues-pr/InfiniTimeOrg/InfiniTime)](https://github.com/InfiniTimeOrg/InfiniTime/pulls)
+[![Downloads - InfiniTime](https://img.shields.io/github/downloads/InfiniTimeOrg/InfiniTime/total)](https://github.com/InfiniTimeOrg/InfiniTime)
+[![Stars - InfiniTime](https://img.shields.io/github/stars/InfiniTimeOrg/InfiniTime?style=social)](https://github.com/InfiniTimeOrg/InfiniTime/stargazers)
+[![Forks - InfiniTime](https://img.shields.io/github/forks/InfiniTimeOrg/InfiniTime?style=social)](https://github.com/InfiniTimeOrg/InfiniTime/network/members)
+
+# InfiniTime
+
+*Fast open-source firmware for the [PineTime smartwatch](https://pine64.org/devices/pinetime/) with many features, written in modern C++.*
+
+<br>
+
+</div>
 
 ## New to InfiniTime?
 
@@ -17,13 +33,18 @@ Fast open-source firmware for the [PineTime smartwatch](https://pine64.org/devic
 ### Companion apps
 
 - [Gadgetbridge](https://gadgetbridge.org/) (Android)
-- [AmazFish](https://openrepos.net/content/piggz/amazfish/) (SailfishOS)
+- [Amazfish](https://github.com/piggz/harbour-amazfish/) ([SailfishOS](https://sailfishos-chum.github.io/apps/harbour-amazfish/), [Ubuntu Touch](https://open-store.io/app/uk.co.piggz.amazfish), [Flatpak](https://flathub.org/apps/uk.co.piggz.amazfish))
 - [Siglo](https://github.com/alexr4535/siglo) (Linux)
 - [InfiniLink](https://github.com/InfiniTimeOrg/InfiniLink) (iOS)
 - [ITD](https://gitea.elara.ws/Elara6331/itd) (Linux)
 - [WatchMate](https://github.com/azymohliad/watchmate) (Linux)
+- [InfiniTimeExplorer](https://infinitimeexplorer.netlify.app) (Web)
 
-***Note**: We removed mentions to NRFConnect as this app is closed source and recent versions do not work anymore with InfiniTime (the last version known to work is 4.24.3). If you used NRFConnect in the past, we recommend you switch to [Gadgetbridge](https://gadgetbridge.org/).*
+<br>
+
+> *InfiniTimeExplorer is only compatible with web browsers that support Web BLE. Current fully supported browsers include Chrome and Microsoft Edge.* 
+>
+> *We removed mentions to NRFConnect as this app is closed source and recent versions do not work anymore with InfiniTime (the last version known to work is 4.24.3). If you used NRFConnect in the past, we recommend you switch to [Gadgetbridge](https://gadgetbridge.org/).* 
 
 ## Development
 

default.nix

@@ -1,10 +0,0 @@
-(import
-  (
-    let lock = builtins.fromJSON (builtins.readFile ./flake.lock); in
-    fetchTarball {
-      url = lock.nodes.flake-compat.locked.url or "https://github.com/edolstra/flake-compat/archive/${lock.nodes.flake-compat.locked.rev}.tar.gz";
-      sha256 = lock.nodes.flake-compat.locked.narHash;
-    }
-  )
-  { src = ./.; }
-).defaultNix

doc/buildAndProgram.md

@@ -5,7 +5,7 @@
 To build this project, you'll need:
 
 - A cross-compiler : [ARM-GCC (10.3-2021.10)](https://developer.arm.com/downloads/-/gnu-rm)
-- The NRF52 SDK 15.3.0 : [nRF-SDK v15.3.0](https://developer.nordicsemi.com/nRF5_SDK/nRF5_SDK_v15.x.x/nRF5_SDK_15.3.0_59ac345.zip)
+- The NRF52 SDK 15.3.0 : [nRF-SDK v15.3.0](https://nsscprodmedia.blob.core.windows.net/prod/software-and-other-downloads/sdks/nrf5/binaries/nrf5sdk153059ac345.zip)
 - The Python 3 modules `cbor`, `intelhex`, `click` and `cryptography` modules for the `mcuboot` tool (see [requirements.txt](../tools/mcuboot/requirements.txt))
   - To keep the system clean, you can install python modules into a python virtual environment (`venv`)
     ```sh
@@ -66,7 +66,7 @@ DFU files are the files you'll need to install your build of InfiniTime using OT
 #### CMake command 
 
 ```
-cmake -DARM_NONE_EABI_TOOLCHAIN_PATH=... -DNRF5_SDK_PATH=...
+cmake -DARM_NONE_EABI_TOOLCHAIN_PATH=... -DNRF5_SDK_PATH=... -S ..
 ```
 
 ### Build the project

doc/code/Apps.md

@@ -124,7 +124,7 @@ MyApp.h:
 ```cpp
 #pragma once
 
-#include "displayapp/Apps.h"
+#include "displayapp/apps/Apps.h"
 #include "displayapp/screens/Screen.h"
 #include "displayapp/Controllers.h"
 #include "Symbols.h"

docker/Dockerfile

@@ -33,7 +33,7 @@ RUN apt-get update -qq \
       libpixman-1-dev \
       libcairo2-dev \
       libpango-1.0-0 \
-      ibpango1.0-dev \
+      libpango1.0-dev \
       libpangocairo-1.0-0 \
     && rm -rf /var/cache/apt/* /var/lib/apt/lists/*;
 
@@ -64,6 +64,9 @@ RUN bash -c "source /opt/build.sh; GetMcuBoot;"
 
 # Add the infinitime user for connecting devcontainer
 RUN adduser infinitime
-    
+
+# Configure Git to accept the /sources directory as safe
+RUN git config --global --add safe.directory /sources
+
 ENV SOURCES_DIR /sources
 CMD ["/opt/build.sh"]

docker/build.sh

@@ -18,6 +18,10 @@ export npm_config_cache="${NPM_DIR}"
 export BUILD_TYPE=${BUILD_TYPE:=Release}
 export GCC_ARM_VER=${GCC_ARM_VER:="10.3-2021.10"}
 export NRF_SDK_VER=${NRF_SDK_VER:="nRF5_SDK_15.3.0_59ac345"}
+# convert to lower case and remove _ and . character
+# the download URL uses the SLUG, but the extracted folder is named like the original value
+NRF_SDK_VER_SLUG=${NRF_SDK_VER,,}
+export NRF_SDK_VER_SLUG=${NRF_SDK_VER_SLUG//[_.]/}
 
 MACHINE="$(uname -m)"
 [ "$MACHINE" = "arm64" ] && MACHINE="aarch64"
@@ -47,17 +51,29 @@ main() {
 
 GetGcc() {
   wget -q https://developer.arm.com/-/media/Files/downloads/gnu-rm/$GCC_ARM_VER/$GCC_ARM_PATH-$MACHINE-linux.tar.bz2 -O - | tar -xj -C $TOOLS_DIR/
+  if [ ! -d "$TOOLS_DIR/$GCC_ARM_PATH" ]; then
+    echo "missing GCC path: $TOOLS_DIR/$GCC_ARM_PATH"
+    return 1
+  fi
 }
 
 GetMcuBoot() {
   git clone https://github.com/mcu-tools/mcuboot.git "$TOOLS_DIR/mcuboot"
   pip3 install -r "$TOOLS_DIR/mcuboot/scripts/requirements.txt"
+  if [ ! -d "$TOOLS_DIR/mcuboot" ]; then
+    echo "missing mcuboot path: $TOOLS_DIR/mcuboot"
+    return 1
+  fi
 }
 
 GetNrfSdk() {
-  wget -q "https://developer.nordicsemi.com/nRF5_SDK/nRF5_SDK_v15.x.x/$NRF_SDK_VER.zip" -O /tmp/$NRF_SDK_VER
+  wget -q "https://nsscprodmedia.blob.core.windows.net/prod/software-and-other-downloads/sdks/nrf5/binaries/$NRF_SDK_VER_SLUG.zip" -O /tmp/$NRF_SDK_VER
   unzip -q /tmp/$NRF_SDK_VER -d "$TOOLS_DIR/"
   rm /tmp/$NRF_SDK_VER
+  if [ ! -d "$TOOLS_DIR/$NRF_SDK_VER" ]; then
+    echo "missing NRF_SDK path: $TOOLS_DIR/$NRF_SDK_VER"
+    return 1
+  fi
 }
 
 CmakeGenerate() {

flake.lock

@@ -1,42 +0,0 @@
-{
-  "nodes": {
-    "flake-compat": {
-      "locked": {
-        "lastModified": 1696426674,
-        "narHash": "sha256-kvjfFW7WAETZlt09AgDn1MrtKzP7t90Vf7vypd3OL1U=",
-        "rev": "0f9255e01c2351cc7d116c072cb317785dd33b33",
-        "revCount": 57,
-        "type": "tarball",
-        "url": "https://api.flakehub.com/f/pinned/edolstra/flake-compat/1.0.1/018afb31-abd1-7bff-a5e4-cff7e18efb7a/source.tar.gz"
-      },
-      "original": {
-        "type": "tarball",
-        "url": "https://flakehub.com/f/edolstra/flake-compat/1.tar.gz"
-      }
-    },
-    "nixpkgs": {
-      "locked": {
-        "lastModified": 1725634671,
-        "narHash": "sha256-v3rIhsJBOMLR8e/RNWxr828tB+WywYIoajrZKFM+0Gg=",
-        "owner": "nixos",
-        "repo": "nixpkgs",
-        "rev": "574d1eac1c200690e27b8eb4e24887f8df7ac27c",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nixos",
-        "ref": "nixos-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
-    "root": {
-      "inputs": {
-        "flake-compat": "flake-compat",
-        "nixpkgs": "nixpkgs"
-      }
-    }
-  },
-  "root": "root",
-  "version": 7
-}

flake.nix

@@ -1,114 +0,0 @@
-{
-  description = "A very basic flake";
-
-  inputs = {
-    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
-    flake-compat.url = "https://flakehub.com/f/edolstra/flake-compat/1.tar.gz";
-  };
-
-  outputs = { self, ... }@inputs:
-    let
-      forAllSystems = function:
-        inputs.nixpkgs.lib.genAttrs [
-          "x86_64-linux"
-          "aarch64-linux"
-        ]
-          (system: function (import inputs.nixpkgs {
-            inherit system;
-            config.allowUnfree = true;
-          }));
-    in
-    {
-      packages = forAllSystems (pkgs:
-        let
-          infinitime-nrf5-sdk = pkgs.nrf5-sdk.overrideAttrs (old: {
-            version = "15.3.0";
-            src = pkgs.fetchzip {
-              url = "https://nsscprodmedia.blob.core.windows.net/prod/software-and-other-downloads/sdks/nrf5/binaries/nrf5sdk153059ac345.zip";
-              sha256 = "sha256-pfmhbpgVv5x2ju489XcivguwpnofHbgVA7bFUJRTj08=";
-            };
-          });
-        in
-        with pkgs; {
-          default = stdenv.mkDerivation rec {
-            name = "infinitime";
-
-            src = fetchFromGitea {
-              domain = "git.techwork.zone";
-              owner = "scott";
-              repo = "InfiniTime";
-              rev = "1.15.1";
-              hash = "sha256-9cy7qYRZrg7qZZwQzYeMIZivGLZ5uGUoTyPgHEvdnZ8=";
-              fetchSubmodules = true;
-            };
-
-            nativeBuildInputs = [
-              cmake
-              nodePackages.lv_font_conv
-              python3
-              python3.pkgs.cbor
-              python3.pkgs.click
-              python3.pkgs.cryptography
-              python3.pkgs.intelhex
-              python3.pkgs.pillow
-              adafruit-nrfutil
-              patch
-              git
-            ];
-
-            postPatch = ''
-              # /usr/bin/env is not available in the build sandbox
-              substituteInPlace src/displayapp/fonts/generate.py --replace "'/usr/bin/env', 'patch'" "'patch'"
-              substituteInPlace tools/mcuboot/imgtool.py --replace "/usr/bin/env python3" "${python3}/bin/python3"
-            '';
-
-            cmakeFlags = [
-              ''-DARM_NONE_EABI_TOOLCHAIN_PATH=${gcc-arm-embedded-10}''
-              ''-DNRF5_SDK_PATH=${infinitime-nrf5-sdk}/share/nRF5_SDK''
-              ''-DBUILD_DFU=1''
-              ''-DBUILD_RESOURCES=1''
-              ''-DCMAKE_SOURCE_DIR=${src}''
-            ];
-
-            installPhase = ''
-              SOURCES_DIR=${src} BUILD_DIR=. OUTPUT_DIR=$out ./post_build.sh
-            '';
-          };
-        });
-
-      devShells = forAllSystems (pkgs:
-        let
-          infinitime-nrf5-sdk = pkgs.nrf5-sdk.overrideAttrs (old: {
-            version = "15.3.0";
-            src = pkgs.fetchzip {
-              url = "https://nsscprodmedia.blob.core.windows.net/prod/software-and-other-downloads/sdks/nrf5/binaries/nrf5sdk153059ac345.zip";
-              sha256 = "sha256-pfmhbpgVv5x2ju489XcivguwpnofHbgVA7bFUJRTj08=";
-            };
-          });
-        in
-        {
-          default =
-            pkgs.buildFHSUserEnv {
-              name = "infinitime-devenv";
-              # build tools
-              targetPkgs = pkgs: (with pkgs; [
-                cmake
-                nodePackages.lv_font_conv
-                python3
-                python3.pkgs.cbor
-                python3.pkgs.click
-                python3.pkgs.cryptography
-                python3.pkgs.intelhex
-                adafruit-nrfutil
-
-                (pkgs.writeShellScriptBin "cmake_infinitime" ''
-                  cmake -DARM_NONE_EABI_TOOLCHAIN_PATH="${pkgs.gcc-arm-embedded-10}" \
-                        -DNRF5_SDK_PATH="${infinitime-nrf5-sdk}/share/nRF5_SDK" \
-                        "$@"
-                '')
-              ]);
-            };
-        });
-    };
-}
-      

shell.nix

@@ -1,10 +0,0 @@
-(import
-  (
-    let lock = builtins.fromJSON (builtins.readFile ./flake.lock); in
-    fetchTarball {
-      url = lock.nodes.flake-compat.locked.url or "https://github.com/edolstra/flake-compat/archive/${lock.nodes.flake-compat.locked.rev}.tar.gz";
-      sha256 = lock.nodes.flake-compat.locked.narHash;
-    }
-  )
-  { src = ./.; }
-).shellNix

src/CMakeLists.txt

@@ -380,6 +380,7 @@ list(APPEND SOURCE_FILES
         displayapp/screens/Metronome.cpp
         displayapp/screens/Motion.cpp
         displayapp/screens/Weather.cpp
+        displayapp/screens/Calculator.cpp
         displayapp/screens/FirmwareValidation.cpp
         displayapp/screens/ApplicationList.cpp
         displayapp/screens/Notifications.cpp
@@ -411,7 +412,6 @@ list(APPEND SOURCE_FILES
         displayapp/screens/settings/SettingWeatherFormat.cpp
         displayapp/screens/settings/SettingWakeUp.cpp
         displayapp/screens/settings/SettingDisplay.cpp
-        displayapp/screens/settings/SettingHeartRate.cpp
         displayapp/screens/settings/SettingSteps.cpp
         displayapp/screens/settings/SettingSetDateTime.cpp
         displayapp/screens/settings/SettingSetDate.cpp
@@ -419,6 +419,7 @@ list(APPEND SOURCE_FILES
         displayapp/screens/settings/SettingChimes.cpp
         displayapp/screens/settings/SettingShakeThreshold.cpp
         displayapp/screens/settings/SettingBluetooth.cpp
+        displayapp/screens/settings/SettingOTA.cpp
 
         ## Watch faces
         displayapp/screens/WatchFaceAnalog.cpp
@@ -427,6 +428,7 @@ list(APPEND SOURCE_FILES
         displayapp/screens/WatchFaceTerminal.cpp
         displayapp/screens/WatchFacePineTimeStyle.cpp
         displayapp/screens/WatchFaceCasioStyleG7710.cpp
+        displayapp/screens/WatchFacePrideFlag.cpp
 
         ##
 
@@ -479,6 +481,7 @@ list(APPEND SOURCE_FILES
 
         systemtask/SystemTask.cpp
         systemtask/SystemMonitor.cpp
+        systemtask/WakeLock.cpp
         drivers/TwiMaster.cpp
 
         heartratetask/HeartRateTask.cpp
@@ -543,6 +546,7 @@ list(APPEND RECOVERY_SOURCE_FILES
 
         systemtask/SystemTask.cpp
         systemtask/SystemMonitor.cpp
+        systemtask/WakeLock.cpp
         drivers/TwiMaster.cpp
         components/rle/RleDecoder.cpp
         components/heartrate/HeartRateController.cpp
@@ -661,6 +665,7 @@ set(INCLUDE_FILES
         displayapp/InfiniTimeTheme.h
         systemtask/SystemTask.h
         systemtask/SystemMonitor.h
+        systemtask/WakeLock.h
         displayapp/screens/Symbols.h
         drivers/TwiMaster.h
         heartratetask/HeartRateTask.h
@@ -786,6 +791,10 @@ add_definitions(-DFREERTOS)
 add_definitions(-D__STACK_SIZE=1024)
 add_definitions(-D__HEAP_SIZE=0)
 add_definitions(-DMYNEWT_VAL_BLE_LL_RFMGMT_ENABLE_TIME=1500)
+add_definitions(-DLFS_CONFIG=libs/lfs_config.h)
+
+# _sbrk is purposefully not implemented so that builds fail when it is used
+add_link_options(-Wl,-wrap=malloc -Wl,-wrap=free -Wl,-wrap=calloc -Wl,-wrap=realloc -Wl,-wrap=_malloc_r -Wl,-wrap=_sbrk)
 
 # Note: Only use this for debugging
 # Derive the low frequency clock from the main clock (SYNT)

src/FreeRTOS/heap_4_infinitime.c

@@ -60,15 +60,6 @@ task.h is included from an application file. */
 /* Assumes 8bit bytes! */
 #define heapBITS_PER_BYTE		( ( size_t ) 8 )
 
-/* Allocate the memory for the heap. */
-#if( configAPPLICATION_ALLOCATED_HEAP == 1 )
-/* The application writer has already defined the array used for the RTOS
-heap - probably so it can be placed in a special segment or address. */
-extern uint8_t ucHeap[ configTOTAL_HEAP_SIZE ];
-#else
-static uint8_t ucHeap[ configTOTAL_HEAP_SIZE ];
-#endif /* configAPPLICATION_ALLOCATED_HEAP */
-
 /* Define the linked list structure.  This is used to link free blocks in order
 of their memory address. */
 typedef struct A_BLOCK_LINK
@@ -113,6 +104,8 @@ application.  When the bit is free the block is still part of the free heap
 space. */
 static size_t xBlockAllocatedBit = 0;
 
+static size_t xHeapSize = 0;
+
 /*-----------------------------------------------------------*/
 
 void *pvPortMalloc( size_t xWantedSize )
@@ -332,27 +325,38 @@ size_t xPortGetMinimumEverFreeHeapSize( void )
 }
 /*-----------------------------------------------------------*/
 
+size_t xPortGetHeapSize( void )
+{
+ return xHeapSize;
+}
+/*-----------------------------------------------------------*/
+
 void vPortInitialiseBlocks( void )
 {
  /* This just exists to keep the linker quiet. */
 }
 /*-----------------------------------------------------------*/
 
+extern uint8_t *__HeapLimit; // Defined by nrf_common.ld
+
 static void prvHeapInit( void )
 {
  BlockLink_t *pxFirstFreeBlock;
  uint8_t *pucAlignedHeap;
  size_t uxAddress;
- size_t xTotalHeapSize = configTOTAL_HEAP_SIZE;
+ size_t xTotalHeapSize = ( size_t ) &__StackLimit - ( size_t ) &__HeapLimit;
+ uint8_t *pucHeap = ( uint8_t * ) &__HeapLimit;
+
+ xHeapSize = xTotalHeapSize;
 
  /* Ensure the heap starts on a correctly aligned boundary. */
- uxAddress = ( size_t ) ucHeap;
+ uxAddress = ( size_t ) pucHeap;
 
  if( ( uxAddress & portBYTE_ALIGNMENT_MASK ) != 0 )
  {
    uxAddress += ( portBYTE_ALIGNMENT - 1 );
    uxAddress &= ~( ( size_t ) portBYTE_ALIGNMENT_MASK );
-   xTotalHeapSize -= uxAddress - ( size_t ) ucHeap;
+   xTotalHeapSize -= uxAddress - ( size_t ) pucHeap;
  }
 
  pucAlignedHeap = ( uint8_t * ) uxAddress;

src/FreeRTOS/portmacro_cmsis.h

@@ -180,6 +180,7 @@ __STATIC_INLINE uint32_t ulPortRaiseBASEPRI( void )
 
 /*-----------------------------------------------------------*/
 
+size_t xPortGetHeapSize(void);
 
 #ifdef __cplusplus
 }

src/FreeRTOSConfig.h

@@ -62,7 +62,6 @@
 #define configTICK_RATE_HZ                      1024
 #define configMAX_PRIORITIES                    (3)
 #define configMINIMAL_STACK_SIZE                (120)
-#define configTOTAL_HEAP_SIZE                   (1024 * 40)
 #define configMAX_TASK_NAME_LEN                 (4)
 #define configUSE_16_BIT_TICKS                  0
 #define configIDLE_SHOULD_YIELD                 1
@@ -74,7 +73,7 @@
 #define configUSE_QUEUE_SETS                    0
 #define configUSE_TIME_SLICING                  0
 #define configUSE_NEWLIB_REENTRANT              0
-#define configENABLE_BACKWARD_COMPATIBILITY     1
+#define configENABLE_BACKWARD_COMPATIBILITY     0
 #define configUSE_TASK_NOTIFICATIONS            0
 
 /* Hook function related definitions. */

src/components/alarm/AlarmController.cpp

@@ -19,11 +19,13 @@
 #include "systemtask/SystemTask.h"
 #include "task.h"
 #include <chrono>
+#include <libraries/log/nrf_log.h>
 
 using namespace Pinetime::Controllers;
 using namespace std::chrono_literals;
 
-AlarmController::AlarmController(Controllers::DateTime& dateTimeController) : dateTimeController {dateTimeController} {
+AlarmController::AlarmController(Controllers::DateTime& dateTimeController, Controllers::FS& fs)
+  : dateTimeController {dateTimeController}, fs {fs} {
 }
 
 namespace {
@@ -36,11 +38,28 @@ namespace {
 void AlarmController::Init(System::SystemTask* systemTask) {
   this->systemTask = systemTask;
   alarmTimer = xTimerCreate("Alarm", 1, pdFALSE, this, SetOffAlarm);
+  LoadSettingsFromFile();
+  if (alarm.isEnabled) {
+    NRF_LOG_INFO("[AlarmController] Loaded alarm was enabled, scheduling");
+    ScheduleAlarm();
+  }
+}
+
+void AlarmController::SaveAlarm() {
+  // verify if it is necessary to save
+  if (alarmChanged) {
+    SaveSettingsToFile();
+  }
+  alarmChanged = false;
 }
 
 void AlarmController::SetAlarmTime(uint8_t alarmHr, uint8_t alarmMin) {
-  hours = alarmHr;
-  minutes = alarmMin;
+  if (alarm.hours == alarmHr && alarm.minutes == alarmMin) {
+    return;
+  }
+  alarm.hours = alarmHr;
+  alarm.minutes = alarmMin;
+  alarmChanged = true;
 }
 
 void AlarmController::ScheduleAlarm() {
@@ -53,18 +72,19 @@ void AlarmController::ScheduleAlarm() {
   tm* tmAlarmTime = std::localtime(&ttAlarmTime);
 
   // If the time being set has already passed today,the alarm should be set for tomorrow
-  if (hours < dateTimeController.Hours() || (hours == dateTimeController.Hours() && minutes <= dateTimeController.Minutes())) {
+  if (alarm.hours < dateTimeController.Hours() ||
+      (alarm.hours == dateTimeController.Hours() && alarm.minutes <= dateTimeController.Minutes())) {
     tmAlarmTime->tm_mday += 1;
     // tm_wday doesn't update automatically
     tmAlarmTime->tm_wday = (tmAlarmTime->tm_wday + 1) % 7;
   }
 
-  tmAlarmTime->tm_hour = hours;
-  tmAlarmTime->tm_min = minutes;
+  tmAlarmTime->tm_hour = alarm.hours;
+  tmAlarmTime->tm_min = alarm.minutes;
   tmAlarmTime->tm_sec = 0;
 
   // if alarm is in weekday-only mode, make sure it shifts to the next weekday
-  if (recurrence == RecurType::Weekdays) {
+  if (alarm.recurrence == RecurType::Weekdays) {
     if (tmAlarmTime->tm_wday == 0) { // Sunday, shift 1 day
       tmAlarmTime->tm_mday += 1;
     } else if (tmAlarmTime->tm_wday == 6) { // Saturday, shift 2 days
@@ -79,7 +99,10 @@ void AlarmController::ScheduleAlarm() {
   xTimerChangePeriod(alarmTimer, secondsToAlarm * configTICK_RATE_HZ, 0);
   xTimerStart(alarmTimer, 0);
 
-  state = AlarmState::Set;
+  if (!alarm.isEnabled) {
+    alarm.isEnabled = true;
+    alarmChanged = true;
+  }
 }
 
 uint32_t AlarmController::SecondsToAlarm() const {
@@ -88,20 +111,71 @@ uint32_t AlarmController::SecondsToAlarm() const {
 
 void AlarmController::DisableAlarm() {
   xTimerStop(alarmTimer, 0);
-  state = AlarmState::Not_Set;
+  if (alarm.isEnabled) {
+    alarm.isEnabled = false;
+    alarmChanged = true;
+  }
 }
 
 void AlarmController::SetOffAlarmNow() {
-  state = AlarmState::Alerting;
+  isAlerting = true;
   systemTask->PushMessage(System::Messages::SetOffAlarm);
 }
 
 void AlarmController::StopAlerting() {
-  // Alarm state is off unless this is a recurring alarm
-  if (recurrence == RecurType::None) {
-    state = AlarmState::Not_Set;
+  isAlerting = false;
+  // Disable alarm unless it is recurring
+  if (alarm.recurrence == RecurType::None) {
+    alarm.isEnabled = false;
+    alarmChanged = true;
   } else {
     // set next instance
     ScheduleAlarm();
   }
 }
+
+void AlarmController::SetRecurrence(RecurType recurrence) {
+  if (alarm.recurrence != recurrence) {
+    alarm.recurrence = recurrence;
+    alarmChanged = true;
+  }
+}
+
+void AlarmController::LoadSettingsFromFile() {
+  lfs_file_t alarmFile;
+  AlarmSettings alarmBuffer;
+
+  if (fs.FileOpen(&alarmFile, "/.system/alarm.dat", LFS_O_RDONLY) != LFS_ERR_OK) {
+    NRF_LOG_WARNING("[AlarmController] Failed to open alarm data file");
+    return;
+  }
+
+  fs.FileRead(&alarmFile, reinterpret_cast<uint8_t*>(&alarmBuffer), sizeof(alarmBuffer));
+  fs.FileClose(&alarmFile);
+  if (alarmBuffer.version != alarmFormatVersion) {
+    NRF_LOG_WARNING("[AlarmController] Loaded alarm settings has version %u instead of %u, discarding",
+                    alarmBuffer.version,
+                    alarmFormatVersion);
+    return;
+  }
+
+  alarm = alarmBuffer;
+  NRF_LOG_INFO("[AlarmController] Loaded alarm settings from file");
+}
+
+void AlarmController::SaveSettingsToFile() const {
+  lfs_dir systemDir;
+  if (fs.DirOpen("/.system", &systemDir) != LFS_ERR_OK) {
+    fs.DirCreate("/.system");
+  }
+  fs.DirClose(&systemDir);
+  lfs_file_t alarmFile;
+  if (fs.FileOpen(&alarmFile, "/.system/alarm.dat", LFS_O_WRONLY | LFS_O_CREAT) != LFS_ERR_OK) {
+    NRF_LOG_WARNING("[AlarmController] Failed to open alarm data file for saving");
+    return;
+  }
+
+  fs.FileWrite(&alarmFile, reinterpret_cast<const uint8_t*>(&alarm), sizeof(alarm));
+  fs.FileClose(&alarmFile);
+  NRF_LOG_INFO("[AlarmController] Saved alarm settings with format version %u to file", alarm.version);
+}

src/components/alarm/AlarmController.h

@@ -30,47 +30,65 @@ namespace Pinetime {
   namespace Controllers {
     class AlarmController {
     public:
-      AlarmController(Controllers::DateTime& dateTimeController);
+      AlarmController(Controllers::DateTime& dateTimeController, Controllers::FS& fs);
 
       void Init(System::SystemTask* systemTask);
+      void SaveAlarm();
       void SetAlarmTime(uint8_t alarmHr, uint8_t alarmMin);
       void ScheduleAlarm();
       void DisableAlarm();
       void SetOffAlarmNow();
       uint32_t SecondsToAlarm() const;
       void StopAlerting();
-      enum class AlarmState { Not_Set, Set, Alerting };
       enum class RecurType { None, Daily, Weekdays };
 
       uint8_t Hours() const {
-        return hours;
+        return alarm.hours;
       }
 
       uint8_t Minutes() const {
-        return minutes;
+        return alarm.minutes;
       }
 
-      AlarmState State() const {
-        return state;
+      bool IsAlerting() const {
+        return isAlerting;
+      }
+
+      bool IsEnabled() const {
+        return alarm.isEnabled;
       }
 
       RecurType Recurrence() const {
-        return recurrence;
+        return alarm.recurrence;
       }
 
-      void SetRecurrence(RecurType recurType) {
-        recurrence = recurType;
-      }
+      void SetRecurrence(RecurType recurrence);
 
     private:
+      // Versions 255 is reserved for now, so the version field can be made
+      // bigger, should it ever be needed.
+      static constexpr uint8_t alarmFormatVersion = 1;
+
+      struct AlarmSettings {
+        uint8_t version = alarmFormatVersion;
+        uint8_t hours = 7;
+        uint8_t minutes = 0;
+        RecurType recurrence = RecurType::None;
+        bool isEnabled = false;
+      };
+
+      bool isAlerting = false;
+      bool alarmChanged = false;
+
       Controllers::DateTime& dateTimeController;
+      Controllers::FS& fs;
       System::SystemTask* systemTask = nullptr;
       TimerHandle_t alarmTimer;
-      uint8_t hours = 7;
-      uint8_t minutes = 0;
+      AlarmSettings alarm;
       std::chrono::time_point<std::chrono::system_clock, std::chrono::nanoseconds> alarmTime;
-      AlarmState state = AlarmState::Not_Set;
-      RecurType recurrence = RecurType::None;
+
+      void LoadSettingsFromFile();
+      void SaveSettingsToFile() const;
     };
   }
 }

src/components/ble/DfuService.cpp

@@ -1,6 +1,8 @@
 #include "components/ble/DfuService.h"
 #include <cstring>
 #include "components/ble/BleController.h"
+#include "components/ble/NotificationManager.h"
+#include "components/settings/Settings.h"
 #include "drivers/SpiNorFlash.h"
 #include "systemtask/SystemTask.h"
 #include <nrf_log.h>
@@ -78,6 +80,18 @@ void DfuService::Init() {
 }
 
 int DfuService::OnServiceData(uint16_t connectionHandle, uint16_t attributeHandle, ble_gatt_access_ctxt* context) {
+#ifndef PINETIME_IS_RECOVERY
+  if (systemTask.GetSettings().GetDfuAndFsMode() == Pinetime::Controllers::Settings::DfuAndFsMode::Disabled) {
+    Pinetime::Controllers::NotificationManager::Notification notif;
+    memcpy(notif.message.data(), denyAlert, denyAlertLength);
+    notif.size = denyAlertLength;
+    notif.category = Pinetime::Controllers::NotificationManager::Categories::SimpleAlert;
+    systemTask.GetNotificationManager().Push(std::move(notif));
+    systemTask.PushMessage(Pinetime::System::Messages::OnNewNotification);
+    return BLE_ATT_ERR_INSUFFICIENT_AUTHOR;
+  }
+#endif
+
   if (bleController.IsFirmwareUpdating()) {
     xTimerStart(timeoutTimer, 0);
   }
@@ -124,9 +138,11 @@ int DfuService::WritePacketHandler(uint16_t connectionHandle, os_mbuf* om) {
                    bootloaderSize,
                    applicationSize);
 
-      // wait until SystemTask has finished waking up all devices
-      while (systemTask.IsSleeping()) {
-        vTaskDelay(50); // 50ms
+      // Wait until SystemTask has disabled sleeping
+      // This isn't quite correct, as we don't actually know
+      // if BleFirmwareUpdateStarted has been received yet
+      while (!systemTask.IsSleepDisabled()) {
+        vTaskDelay(pdMS_TO_TICKS(5));
       }
 
       dfuImage.Erase();

src/components/ble/DfuService.h

@@ -20,6 +20,8 @@ namespace Pinetime {
 
   namespace Controllers {
     class Ble;
+    class Settings;
+    class NotificationManager;
 
     class DfuService {
     public:
@@ -87,6 +89,9 @@ namespace Pinetime {
       DfuImage dfuImage;
       NotificationManager notificationManager;
 
+      static constexpr const char denyAlert[] = "InfiniTime\0Firmware update attempted, but disabled in settings.";
+      static constexpr const uint8_t denyAlertLength = sizeof(denyAlert); // for this to work denyAlert MUST be array
+
       static constexpr uint16_t dfuServiceId {0x1530};
       static constexpr uint16_t packetCharacteristicId {0x1532};
       static constexpr uint16_t controlPointCharacteristicId {0x1531};

src/components/ble/FSService.cpp

@@ -1,6 +1,8 @@
 #include <nrf_log.h>
 #include "FSService.h"
 #include "components/ble/BleController.h"
+#include "components/ble/NotificationManager.h"
+#include "components/settings/Settings.h"
 #include "systemtask/SystemTask.h"
 
 using namespace Pinetime::Controllers;
@@ -49,6 +51,18 @@ void FSService::Init() {
 }
 
 int FSService::OnFSServiceRequested(uint16_t connectionHandle, uint16_t attributeHandle, ble_gatt_access_ctxt* context) {
+#ifndef PINETIME_IS_RECOVERY
+  if (systemTask.GetSettings().GetDfuAndFsMode() == Pinetime::Controllers::Settings::DfuAndFsMode::Disabled) {
+    Pinetime::Controllers::NotificationManager::Notification notif;
+    memcpy(notif.message.data(), denyAlert, denyAlertLength);
+    notif.size = denyAlertLength;
+    notif.category = Pinetime::Controllers::NotificationManager::Categories::SimpleAlert;
+    systemTask.GetNotificationManager().Push(std::move(notif));
+    systemTask.PushMessage(Pinetime::System::Messages::OnNewNotification);
+    return BLE_ATT_ERR_INSUFFICIENT_AUTHOR;
+  }
+#endif
+
   if (attributeHandle == versionCharacteristicHandle) {
     NRF_LOG_INFO("FS_S : handle = %d", versionCharacteristicHandle);
     int res = os_mbuf_append(context->om, &fsVersion, sizeof(fsVersion));

src/components/ble/FSService.h

@@ -14,6 +14,8 @@ namespace Pinetime {
 
   namespace Controllers {
     class Ble;
+    class Settings;
+    class NotificationManager;
 
     class FSService {
     public:
@@ -26,6 +28,10 @@ namespace Pinetime {
     private:
       Pinetime::System::SystemTask& systemTask;
       Pinetime::Controllers::FS& fs;
+
+      static constexpr const char denyAlert[] = "InfiniTime\0File access attempted, but disabled in settings.";
+      static constexpr const uint8_t denyAlertLength = sizeof(denyAlert); // for this to work denyAlert MUST be array
+
       static constexpr uint16_t FSServiceId {0xFEBB};
       static constexpr uint16_t fsVersionId {0x0100};
       static constexpr uint16_t fsTransferId {0x0200};

src/components/ble/MusicService.cpp

@@ -18,6 +18,8 @@
 #include "components/ble/MusicService.h"
 #include "components/ble/NimbleController.h"
 #include <cstring>
+#include <FreeRTOS.h>
+#include <task.h>
 
 namespace {
   // 0000yyxx-78fc-48fe-8e23-433b3a1942d0

src/components/ble/MusicService.h

@@ -25,6 +25,7 @@
 #include <host/ble_uuid.h>
 #undef max
 #undef min
+#include <FreeRTOS.h>
 
 namespace Pinetime {
   namespace Controllers {
@@ -70,9 +71,9 @@ namespace Pinetime {
 
       uint16_t eventHandle {};
 
-      std::string artistName {"Waiting for"};
-      std::string albumName {};
-      std::string trackName {"track information.."};
+      std::string trackName;
+      std::string albumName;
+      std::string artistName {"Not Playing"};
 
       bool playing {false};
 

src/components/ble/NimbleController.cpp

@@ -454,9 +454,15 @@ void NimbleController::PersistBond(struct ble_gap_conn_desc& desc) {
     /* Wakeup Spi and SpiNorFlash before accessing the file system
      * This should be fixed in the FS driver
      */
-    systemTask.PushMessage(Pinetime::System::Messages::GoToRunning);
     systemTask.PushMessage(Pinetime::System::Messages::DisableSleeping);
-    vTaskDelay(10);
+
+    // This isn't quite correct
+    // SystemTask could receive EnableSleeping right after passing this check
+    // We need some guarantee that the SystemTask has processed the above message
+    // before we can continue
+    while (!systemTask.IsSleepDisabled()) {
+      vTaskDelay(pdMS_TO_TICKS(5));
+    }
 
     lfs_file_t file_p;
 

src/components/ble/NotificationManager.h

@@ -28,7 +28,7 @@ namespace Pinetime {
         using Id = uint8_t;
         using Idx = uint8_t;
 
-        std::array<char, MessageSize + 1> message;
+        std::array<char, MessageSize + 1> message{};
         uint8_t size;
         Categories category = Categories::Unknown;
         Id id = 0;

src/components/ble/SimpleWeatherService.cpp

@@ -42,9 +42,9 @@ namespace {
     std::memcpy(cityName.data(), &dataBuffer[16], 32);
     cityName[32] = '\0';
     return SimpleWeatherService::CurrentWeather(ToUInt64(&dataBuffer[2]),
-                                                ToInt16(&dataBuffer[10]),
-                                                ToInt16(&dataBuffer[12]),
-                                                ToInt16(&dataBuffer[14]),
+                                                SimpleWeatherService::Temperature(ToInt16(&dataBuffer[10])),
+                                                SimpleWeatherService::Temperature(ToInt16(&dataBuffer[12])),
+                                                SimpleWeatherService::Temperature(ToInt16(&dataBuffer[14])),
                                                 SimpleWeatherService::Icons {dataBuffer[16 + 32]},
                                                 std::move(cityName));
   }
@@ -52,12 +52,12 @@ namespace {
   SimpleWeatherService::Forecast CreateForecast(const uint8_t* dataBuffer) {
     auto timestamp = static_cast<uint64_t>(ToUInt64(&dataBuffer[2]));
 
-    std::array<SimpleWeatherService::Forecast::Day, SimpleWeatherService::MaxNbForecastDays> days;
+    std::array<std::optional<SimpleWeatherService::Forecast::Day>, SimpleWeatherService::MaxNbForecastDays> days;
     const uint8_t nbDaysInBuffer = dataBuffer[10];
     const uint8_t nbDays = std::min(SimpleWeatherService::MaxNbForecastDays, nbDaysInBuffer);
     for (int i = 0; i < nbDays; i++) {
-      days[i] = SimpleWeatherService::Forecast::Day {ToInt16(&dataBuffer[11 + (i * 5)]),
-                                                     ToInt16(&dataBuffer[13 + (i * 5)]),
+      days[i] = SimpleWeatherService::Forecast::Day {SimpleWeatherService::Temperature(ToInt16(&dataBuffer[11 + (i * 5)])),
+                                                     SimpleWeatherService::Temperature(ToInt16(&dataBuffer[13 + (i * 5)])),
                                                      SimpleWeatherService::Icons {dataBuffer[15 + (i * 5)]}};
     }
     return SimpleWeatherService::Forecast {timestamp, nbDays, days};
@@ -98,9 +98,9 @@ int SimpleWeatherService::OnCommand(struct ble_gatt_access_ctxt* ctxt) {
         currentWeather = CreateCurrentWeather(dataBuffer);
         NRF_LOG_INFO("Current weather :\n\tTimestamp : %d\n\tTemperature:%d\n\tMin:%d\n\tMax:%d\n\tIcon:%d\n\tLocation:%s",
                      currentWeather->timestamp,
-                     currentWeather->temperature,
-                     currentWeather->minTemperature,
-                     currentWeather->maxTemperature,
+                     currentWeather->temperature.PreciseCelsius(),
+                     currentWeather->minTemperature.PreciseCelsius(),
+                     currentWeather->maxTemperature.PreciseCelsius(),
                      currentWeather->iconId,
                      currentWeather->location.data());
       }
@@ -112,9 +112,9 @@ int SimpleWeatherService::OnCommand(struct ble_gatt_access_ctxt* ctxt) {
         for (int i = 0; i < 5; i++) {
           NRF_LOG_INFO("\t[%d] Min: %d - Max : %d - Icon : %d",
                        i,
-                       forecast->days[i].minTemperature,
-                       forecast->days[i].maxTemperature,
-                       forecast->days[i].iconId);
+                       forecast->days[i]->minTemperature.PreciseCelsius(),
+                       forecast->days[i]->maxTemperature.PreciseCelsius(),
+                       forecast->days[i]->iconId);
         }
       }
       break;

src/components/ble/SimpleWeatherService.h

@@ -19,7 +19,7 @@
 
 #include <cstdint>
 #include <string>
-#include <vector>
+#include <array>
 #include <memory>
 
 #define min // workaround: nimble's min/max macros conflict with libstdc++
@@ -61,13 +61,42 @@ namespace Pinetime {
         Unknown = 255
       };
 
+      class Temperature {
+      public:
+        explicit Temperature(int16_t raw) : raw {raw} {
+        }
+
+        [[nodiscard]] int16_t PreciseCelsius() const {
+          return raw;
+        }
+
+        [[nodiscard]] int16_t PreciseFahrenheit() const {
+          return raw * 9 / 5 + 3200;
+        }
+
+        [[nodiscard]] int16_t Celsius() const {
+          return (PreciseCelsius() + 50) / 100;
+        }
+
+        [[nodiscard]] int16_t Fahrenheit() const {
+          return (PreciseFahrenheit() + 50) / 100;
+        }
+
+        bool operator==(const Temperature& other) const {
+          return raw == other.raw;
+        }
+
+      private:
+        int16_t raw;
+      };
+
       using Location = std::array<char, 33>; // 32 char + \0 (end of string)
 
       struct CurrentWeather {
         CurrentWeather(uint64_t timestamp,
-                       int16_t temperature,
-                       int16_t minTemperature,
-                       int16_t maxTemperature,
+                       Temperature temperature,
+                       Temperature minTemperature,
+                       Temperature maxTemperature,
                        Icons iconId,
                        Location&& location)
           : timestamp {timestamp},
@@ -79,9 +108,9 @@ namespace Pinetime {
         }
 
         uint64_t timestamp;
-        int16_t temperature;
-        int16_t minTemperature;
-        int16_t maxTemperature;
+        Temperature temperature;
+        Temperature minTemperature;
+        Temperature maxTemperature;
         Icons iconId;
         Location location;
 
@@ -93,14 +122,14 @@ namespace Pinetime {
         uint8_t nbDays;
 
         struct Day {
-          int16_t minTemperature;
-          int16_t maxTemperature;
+          Temperature minTemperature;
+          Temperature maxTemperature;
           Icons iconId;
 
           bool operator==(const Day& other) const;
         };
 
-        std::array<Day, MaxNbForecastDays> days;
+        std::array<std::optional<Day>, MaxNbForecastDays> days;
 
         bool operator==(const Forecast& other) const;
       };
@@ -108,10 +137,6 @@ namespace Pinetime {
       std::optional<CurrentWeather> Current() const;
       std::optional<Forecast> GetForecast() const;
 
-      static int16_t CelsiusToFahrenheit(int16_t celsius) {
-        return celsius * 9 / 5 + 3200;
-      }
-
     private:
       // 00050000-78fc-48fe-8e23-433b3a1942d0
       static constexpr ble_uuid128_t BaseUuid() {

src/components/datetime/DateTimeController.cpp

@@ -7,16 +7,31 @@
 using namespace Pinetime::Controllers;
 
 namespace {
-  char const* DaysStringShort[] = {"--", "MON", "TUE", "WED", "THU", "FRI", "SAT", "SUN"};
-  char const* DaysStringShortLow[] = {"--", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"};
-  char const* MonthsString[] = {"--", "JAN", "FEB", "MAR", "APR", "MAY", "JUN", "JUL", "AUG", "SEP", "OCT", "NOV", "DEC"};
-  char const* MonthsStringLow[] = {"--", "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
+  constexpr const char* const DaysStringShort[] = {"--", "MON", "TUE", "WED", "THU", "FRI", "SAT", "SUN"};
+  constexpr const char* const DaysStringShortLow[] = {"--", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"};
+  constexpr const char* const DaysString[] = {"--", "MONDAY", "TUESDAY", "WEDNESDAY", "THURSDAY", "FRIDAY", "SATURDAY", "SUNDAY"};
+  constexpr const char* const DaysStringLow[] = {"--", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"};
+  constexpr const char* const MonthsString[] = {"--", "JAN", "FEB", "MAR", "APR", "MAY", "JUN", "JUL", "AUG", "SEP", "OCT", "NOV", "DEC"};
+  constexpr const char* const MonthsStringLow[] =
+    {"--", "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
+
+  constexpr int compileTimeAtoi(const char* str) {
+    int result = 0;
+    while (*str >= '0' && *str <= '9') {
+      result = result * 10 + *str - '0';
+      str++;
+    }
+    return result;
+  }
 }
 
 DateTime::DateTime(Controllers::Settings& settingsController) : settingsController {settingsController} {
   mutex = xSemaphoreCreateMutex();
   ASSERT(mutex != nullptr);
   xSemaphoreGive(mutex);
+
+  // __DATE__ is a string of the format "MMM DD YYYY", so an offset of 7 gives the start of the year
+  SetTime(compileTimeAtoi(&__DATE__[7]), 1, 1, 0, 0, 0);
 }
 
 void DateTime::SetCurrentTime(std::chrono::time_point<std::chrono::system_clock, std::chrono::nanoseconds> t) {
@@ -46,7 +61,9 @@ void DateTime::SetTime(uint16_t year, uint8_t month, uint8_t day, uint8_t hour,
   UpdateTime(previousSystickCounter, true);
   xSemaphoreGive(mutex);
 
-  systemTask->PushMessage(System::Messages::OnNewTime);
+  if (systemTask != nullptr) {
+    systemTask->PushMessage(System::Messages::OnNewTime);
+  }
 }
 
 void DateTime::SetTimeZone(int8_t timezone, int8_t dst) {
@@ -129,6 +146,10 @@ const char* DateTime::DayOfWeekShortToString() const {
   return DaysStringShort[static_cast<uint8_t>(DayOfWeek())];
 }
 
+const char* DateTime::DayOfWeekToString() const {
+  return DaysString[static_cast<uint8_t>(DayOfWeek())];
+}
+
 const char* DateTime::MonthShortToStringLow(Months month) {
   return MonthsStringLow[static_cast<uint8_t>(month)];
 }
@@ -137,6 +158,10 @@ const char* DateTime::DayOfWeekShortToStringLow(Days day) {
   return DaysStringShortLow[static_cast<uint8_t>(day)];
 }
 
+const char* DateTime::DayOfWeekToStringLow(Days day) {
+  return DaysStringLow[static_cast<uint8_t>(day)];
+}
+
 void DateTime::Register(Pinetime::System::SystemTask* systemTask) {
   this->systemTask = systemTask;
 }

src/components/datetime/DateTimeController.h

@@ -41,7 +41,7 @@ namespace Pinetime {
        *
        * used to update difference between utc and local time (see UtcOffset())
        *
-       * parameters are in quarters of an our. Following the BLE CTS specification,
+       * parameters are in quarters of an hour. Following the BLE CTS specification,
        * timezone is expected to be constant over DST which will be reported in
        * dst field.
        */
@@ -121,8 +121,10 @@ namespace Pinetime {
 
       const char* MonthShortToString() const;
       const char* DayOfWeekShortToString() const;
+      const char* DayOfWeekToString() const;
       static const char* MonthShortToStringLow(Months month);
       static const char* DayOfWeekShortToStringLow(Days day);
+      static const char* DayOfWeekToStringLow(Days day);
 
       std::chrono::time_point<std::chrono::system_clock, std::chrono::nanoseconds> CurrentDateTime();
 

src/components/heartrate/Ppg.cpp

@@ -142,7 +142,7 @@ Ppg::Ppg() {
   spectrum.fill(0.0f);
 }
 
-int8_t Ppg::Preprocess(uint32_t hrs, uint32_t als) {
+int8_t Ppg::Preprocess(uint16_t hrs, uint16_t als) {
   if (dataIndex < dataLength) {
     dataHRS[dataIndex++] = hrs;
   }

src/components/heartrate/Ppg.h

@@ -14,7 +14,7 @@ namespace Pinetime {
     class Ppg {
     public:
       Ppg();
-      int8_t Preprocess(uint32_t hrs, uint32_t als);
+      int8_t Preprocess(uint16_t hrs, uint16_t als);
       int HeartRate();
       void Reset(bool resetDaqBuffer);
       static constexpr int deltaTms = 100;

src/components/settings/Settings.cpp

@@ -8,11 +8,13 @@ Settings::Settings(Pinetime::Controllers::FS& fs) : fs {fs} {
 }
 
 void Settings::Init() {
+
   // Load default settings from Flash
   LoadSettingsFromFile();
 }
 
 void Settings::SaveSettings() {
+
   // verify if is necessary to save
   if (settingsChanged) {
     SaveSettingsToFile();

src/components/settings/Settings.h

@@ -4,6 +4,7 @@
 #include "components/brightness/BrightnessController.h"
 #include "components/fs/FS.h"
 #include "displayapp/apps/Apps.h"
+#include <nrf_log.h>
 
 namespace Pinetime {
   namespace Controllers {
@@ -36,6 +37,8 @@ namespace Pinetime {
       };
       enum class PTSGaugeStyle : uint8_t { Full, Half, Numeric };
       enum class PTSWeather : uint8_t { On, Off };
+      enum class PrideFlag : uint8_t { Gay, Trans, Bi, Lesbian };
+      enum class DfuAndFsMode : uint8_t { Disabled, Enabled, EnabledTillReboot };
 
       struct PineTimeStyle {
         Colors ColorTime = Colors::Teal;
@@ -50,17 +53,6 @@ namespace Pinetime {
         int colorIndex = 0;
       };
 
-      enum class HeartRateBackgroundMeasurementInterval : uint8_t {
-        Off,
-        Continuous,
-        TenSeconds,
-        ThirtySeconds,
-        OneMinute,
-        FiveMinutes,
-        TenMinutes,
-        ThirtyMinutes,
-      };
-
       Settings(Pinetime::Controllers::FS& fs);
 
       Settings(const Settings&) = delete;
@@ -165,6 +157,16 @@ namespace Pinetime {
         return settings.PTS.weatherEnable;
       };
 
+      void SetPrideFlag(PrideFlag prideFlag) {
+        if (prideFlag != settings.prideFlag)
+          settingsChanged = true;
+        settings.prideFlag = prideFlag;
+      };
+
+      PrideFlag GetPrideFlag() const {
+        return settings.prideFlag;
+      };
+
       void SetAppMenu(uint8_t menu) {
         appMenu = menu;
       };
@@ -309,16 +311,28 @@ namespace Pinetime {
         return bleRadioEnabled;
       };
 
-      HeartRateBackgroundMeasurementInterval GetHeartRateBackgroundMeasurementInterval() const {
-        return settings.heartRateBackgroundMeasurementInterval;
-      }
-
-      void SetHeartRateBackgroundMeasurementInterval(HeartRateBackgroundMeasurementInterval newHeartRateBackgroundMeasurementInterval) {
-        if (newHeartRateBackgroundMeasurementInterval != settings.heartRateBackgroundMeasurementInterval) {
+      void SetDfuAndFsMode(DfuAndFsMode mode) {
+        if (mode == GetDfuAndFsMode()) {
+          return;
+        }
+        if (mode == DfuAndFsMode::Enabled || GetDfuAndFsMode() == DfuAndFsMode::Enabled) {
           settingsChanged = true;
         }
-        settings.heartRateBackgroundMeasurementInterval = newHeartRateBackgroundMeasurementInterval;
-      }
+        settings.dfuAndFsEnabledOnBoot = (mode == DfuAndFsMode::Enabled);
+        dfuAndFsEnabledTillReboot = (mode == DfuAndFsMode::EnabledTillReboot);
+      };
+
+      DfuAndFsMode GetDfuAndFsMode() {
+        if (dfuAndFsEnabledTillReboot) {
+          if (settings.dfuAndFsEnabledOnBoot) { // ensure both variables are in consistent state
+            settingsChanged = true;
+            settings.dfuAndFsEnabledOnBoot = false;
+            NRF_LOG_ERROR("Settings: DfuAndFsMode data corrupted");
+          }
+          return DfuAndFsMode::EnabledTillReboot;
+        }
+        return (settings.dfuAndFsEnabledOnBoot ? DfuAndFsMode::Enabled : DfuAndFsMode::Disabled);
+      };
 
     private:
       Pinetime::Controllers::FS& fs;
@@ -341,6 +355,8 @@ namespace Pinetime {
 
         PineTimeStyle PTS;
 
+        PrideFlag prideFlag = PrideFlag::Gay;
+
         WatchFaceInfineat watchFaceInfineat;
 
         std::bitset<5> wakeUpMode {0};
@@ -348,7 +364,7 @@ namespace Pinetime {
 
         Controllers::BrightnessController::Levels brightLevel = Controllers::BrightnessController::Levels::Medium;
 
-        HeartRateBackgroundMeasurementInterval heartRateBackgroundMeasurementInterval = HeartRateBackgroundMeasurementInterval::Off;
+        bool dfuAndFsEnabledOnBoot = false;
       };
 
       SettingsData settings;
@@ -361,6 +377,7 @@ namespace Pinetime {
        * to off (false) on every boot because we always want ble to be enabled on startup
        */
       bool bleRadioEnabled = true;
+      bool dfuAndFsEnabledTillReboot = false;
 
       void LoadSettingsFromFile();
       void SaveSettingsToFile();

src/displayapp/DisplayApp.cpp

@@ -30,6 +30,7 @@
 #include "displayapp/screens/Weather.h"
 #include "displayapp/screens/PassKey.h"
 #include "displayapp/screens/Error.h"
+#include "displayapp/screens/Calculator.h"
 
 #include "drivers/Cst816s.h"
 #include "drivers/St7789.h"
@@ -47,13 +48,15 @@
 #include "displayapp/screens/settings/SettingSteps.h"
 #include "displayapp/screens/settings/SettingSetDateTime.h"
 #include "displayapp/screens/settings/SettingChimes.h"
-#include "displayapp/screens/settings/SettingHeartRate.h"
 #include "displayapp/screens/settings/SettingShakeThreshold.h"
 #include "displayapp/screens/settings/SettingBluetooth.h"
+#include "displayapp/screens/settings/SettingOTA.h"
 
 #include "libs/lv_conf.h"
 #include "UserApps.h"
 
+#include <algorithm>
+
 using namespace Pinetime::Applications;
 using namespace Pinetime::Applications::Display;
 
@@ -127,15 +130,6 @@ void DisplayApp::Start(System::BootErrors error) {
 
   bootError = error;
 
-  lvgl.Init();
-  motorController.Init();
-
-  if (error == System::BootErrors::TouchController) {
-    LoadNewScreen(Apps::Error, DisplayApp::FullRefreshDirections::None);
-  } else {
-    LoadNewScreen(Apps::Clock, DisplayApp::FullRefreshDirections::None);
-  }
-
   if (pdPASS != xTaskCreate(DisplayApp::Process, "displayapp", 800, this, 0, &taskHandle)) {
     APP_ERROR_HANDLER(NRF_ERROR_NO_MEM);
   }
@@ -144,26 +138,42 @@ void DisplayApp::Start(System::BootErrors error) {
 void DisplayApp::Process(void* instance) {
   auto* app = static_cast<DisplayApp*>(instance);
   NRF_LOG_INFO("displayapp task started!");
-  app->InitHw();
+  app->Init();
+
+  if (app->bootError == System::BootErrors::TouchController) {
+    app->LoadNewScreen(Apps::Error, DisplayApp::FullRefreshDirections::None);
+  } else {
+    app->LoadNewScreen(Apps::Clock, DisplayApp::FullRefreshDirections::None);
+  }
 
   while (true) {
     app->Refresh();
   }
 }
 
-void DisplayApp::InitHw() {
+void DisplayApp::Init() {
+  lcd.Init();
+  motorController.Init();
   brightnessController.Init();
   ApplyBrightness();
-  lcd.Init();
+  lvgl.Init();
 }
 
 TickType_t DisplayApp::CalculateSleepTime() {
+  // Calculates how many system ticks DisplayApp should sleep before rendering the next AOD frame
+  // Next frame time is frame count * refresh period (ms) * tick rate
+
+  auto RoundedDiv = [](uint32_t a, uint32_t b) {
+    return ((a + (b / 2)) / b);
+  };
+  // RoundedDiv overflows when numerator + (denominator floordiv 2) > uint32 max
+  // in this case around 9 hours (=overflow frame count / always on refresh period)
+  constexpr TickType_t overflowFrameCount = (UINT32_MAX - (1000 / 16)) / ((configTICK_RATE_HZ / 8) * alwaysOnRefreshPeriod);
+
   TickType_t ticksElapsed = xTaskGetTickCount() - alwaysOnStartTime;
-  // Divide both the numerator and denominator by 8 to increase the number of ticks (frames) before the overflow tick is reached
-  TickType_t elapsedTarget = ROUNDED_DIV((configTICK_RATE_HZ / 8) * alwaysOnTickCount * alwaysOnRefreshPeriod, 1000 / 8);
-  // ROUNDED_DIV overflows when numerator + (denominator floordiv 2) > uint32 max
-  // in this case around 9 hours
-  constexpr TickType_t overflowTick = (UINT32_MAX - (1000 / 16)) / ((configTICK_RATE_HZ / 8) * alwaysOnRefreshPeriod);
+  // Divide both the numerator and denominator by 8 (=GCD(1000,1024))
+  // to increase the number of ticks (frames) before the overflow tick is reached
+  TickType_t targetRenderTick = RoundedDiv((configTICK_RATE_HZ / 8) * alwaysOnFrameCount * alwaysOnRefreshPeriod, 1000 / 8);
 
   // Assumptions
 
@@ -171,17 +181,17 @@ TickType_t DisplayApp::CalculateSleepTime() {
   // Needed for division trick above
   static_assert(configTICK_RATE_HZ % 8 == 0);
 
-  // Local tick count must always wraparound before the system tick count does
-  // As a static assert we can use 64 bit ints and therefore dodge overflows
+  // Frame count must always wraparound more often than the system tick count does
   // Always on overflow time (ms) < system tick overflow time (ms)
-  static_assert((uint64_t) overflowTick * (uint64_t) alwaysOnRefreshPeriod < (uint64_t) UINT32_MAX * 1000ULL / configTICK_RATE_HZ);
+  // Using 64bit ints here to avoid overflow
+  static_assert((uint64_t) overflowFrameCount * (uint64_t) alwaysOnRefreshPeriod < (uint64_t) UINT32_MAX * 1000ULL / configTICK_RATE_HZ);
 
-  if (alwaysOnTickCount == overflowTick) {
-    alwaysOnTickCount = 0;
+  if (alwaysOnFrameCount == overflowFrameCount) {
+    alwaysOnFrameCount = 0;
     alwaysOnStartTime = xTaskGetTickCount();
   }
-  if (elapsedTarget > ticksElapsed) {
-    return elapsedTarget - ticksElapsed;
+  if (targetRenderTick > ticksElapsed) {
+    return targetRenderTick - ticksElapsed;
   } else {
     return 0;
   }
@@ -221,28 +231,27 @@ void DisplayApp::Refresh() {
   TickType_t queueTimeout;
   switch (state) {
     case States::Idle:
-      if (settingsController.GetAlwaysOnDisplay()) {
-        if (!currentScreen->IsRunning()) {
-          LoadPreviousScreen();
+      queueTimeout = portMAX_DELAY;
+      break;
+    case States::AOD:
+      if (!currentScreen->IsRunning()) {
+        LoadPreviousScreen();
+      }
+      // Check we've slept long enough
+      // Might not be true if the loop received an event
+      // If not true, then wait that amount of time
+      queueTimeout = CalculateSleepTime();
+      if (queueTimeout == 0) {
+        // Only advance the tick count when LVGL is done
+        // Otherwise keep running the task handler while it still has things to draw
+        // Note: under high graphics load, LVGL will always have more work to do
+        if (lv_task_handler() > 0) {
+          // Drop frames that we've missed if drawing/event handling took way longer than expected
+          while (queueTimeout == 0) {
+            alwaysOnFrameCount += 1;
+            queueTimeout = CalculateSleepTime();
+          }
         }
-        // Check we've slept long enough
-        // Might not be true if the loop received an event
-        // If not true, then wait that amount of time
-        queueTimeout = CalculateSleepTime();
-        if (queueTimeout == 0) {
-          // Only advance the tick count when LVGL is done
-          // Otherwise keep running the task handler while it still has things to draw
-          // Note: under high graphics load, LVGL will always have more work to do
-          if (lv_task_handler() > 0) {
-            // Drop frames that we've missed if drawing/event handling took way longer than expected
-            while (queueTimeout == 0) {
-              alwaysOnTickCount += 1;
-              queueTimeout = CalculateSleepTime();
-            }
-          };
-        }
-      } else {
-        queueTimeout = portMAX_DELAY;
       }
       break;
     case States::Running:
@@ -256,9 +265,20 @@ void DisplayApp::Refresh() {
           isDimmed = true;
           brightnessController.Set(Controllers::BrightnessController::Levels::Low);
         }
-        if (IsPastSleepTime()) {
-          systemTask->PushMessage(System::Messages::GoToSleep);
-          state = States::Idle;
+        if (IsPastSleepTime() && uxQueueMessagesWaiting(msgQueue) == 0) {
+          PushMessageToSystemTask(System::Messages::GoToSleep);
+          // Can't set state to Idle here, something may send
+          // DisableSleeping before this GoToSleep arrives
+          // Instead we check we have no messages queued before sending GoToSleep
+          // This works as the SystemTask is higher priority than DisplayApp
+          // As soon as we send GoToSleep, SystemTask pre-empts DisplayApp
+          // Whenever DisplayApp is running again, it is guaranteed that
+          // SystemTask has handled the message
+          // If it responded, we will have a GoToSleep waiting in the queue
+          // By checking that there are no messages in the queue, we avoid
+          // resending GoToSleep when we already have a response
+          // SystemTask is resilient to duplicate messages, this is an
+          // optimisation to reduce pressure on the message queues
         }
       } else if (isDimmed) {
         isDimmed = false;
@@ -274,12 +294,22 @@ void DisplayApp::Refresh() {
   if (xQueueReceive(msgQueue, &msg, queueTimeout) == pdTRUE) {
     switch (msg) {
       case Messages::GoToSleep:
+      case Messages::GoToAOD:
+        // Checking if SystemTask is sleeping is purely an optimisation.
+        // If it's no longer sleeping since it sent GoToSleep, it has
+        // cancelled the sleep and transitioned directly from
+        // GoingToSleep->Running, so we are about to receive GoToRunning
+        // and can ignore this message. If it wasn't ignored, DisplayApp
+        // would go to sleep and then immediately re-wake
+        if (state != States::Running || !systemTask->IsSleeping()) {
+          break;
+        }
         while (brightnessController.Level() != Controllers::BrightnessController::Levels::Low) {
           brightnessController.Lower();
           vTaskDelay(100);
         }
         // Turn brightness down (or set to AlwaysOn mode)
-        if (settingsController.GetAlwaysOnDisplay()) {
+        if (msg == Messages::GoToAOD) {
           brightnessController.Set(Controllers::BrightnessController::Levels::AlwaysOn);
         } else {
           brightnessController.Set(Controllers::BrightnessController::Levels::Off);
@@ -292,23 +322,34 @@ void DisplayApp::Refresh() {
           while (!lv_task_handler()) {
           };
         }
-        // Turn LCD display off (or set to low power for AlwaysOn mode)
-        if (settingsController.GetAlwaysOnDisplay()) {
+        // Clear any ongoing touch pressed events
+        // Without this LVGL gets stuck in the pressed state and will keep refreshing the
+        // display activity timer causing the screen to never sleep after timeout
+        lvgl.ClearTouchState();
+        if (msg == Messages::GoToAOD) {
           lcd.LowPowerOn();
           // Record idle entry time
-          alwaysOnTickCount = 0;
+          alwaysOnFrameCount = 0;
           alwaysOnStartTime = xTaskGetTickCount();
+          PushMessageToSystemTask(Pinetime::System::Messages::OnDisplayTaskAOD);
+          state = States::AOD;
         } else {
           lcd.Sleep();
+          PushMessageToSystemTask(Pinetime::System::Messages::OnDisplayTaskSleeping);
+          state = States::Idle;
         }
-        PushMessageToSystemTask(Pinetime::System::Messages::OnDisplayTaskSleeping);
-        state = States::Idle;
         break;
       case Messages::NotifyDeviceActivity:
         lv_disp_trig_activity(nullptr);
         break;
       case Messages::GoToRunning:
-        if (settingsController.GetAlwaysOnDisplay()) {
+        // If SystemTask is sleeping, the GoToRunning message is old
+        // and must be ignored. Otherwise DisplayApp will use SPI
+        // that is powered down and cause bad behaviour
+        if (state == States::Running || systemTask->IsSleeping()) {
+          break;
+        }
+        if (state == States::AOD) {
           lcd.LowPowerOff();
         } else {
           lcd.Wakeup();
@@ -334,7 +375,7 @@ void DisplayApp::Refresh() {
         } else {
           LoadNewScreen(Apps::Timer, DisplayApp::FullRefreshDirections::Up);
         }
-        motorController.StartRinging();
+        motorController.RunForDuration(35);
         break;
       case Messages::AlarmTriggered:
         if (currentApp == Apps::Alarm) {
@@ -437,13 +478,10 @@ void DisplayApp::Refresh() {
         LoadNewScreen(Apps::Clock, DisplayApp::FullRefreshDirections::None);
         motorController.RunForDuration(35);
         break;
-      case Messages::OnChargingEvent:
-        motorController.RunForDuration(15);
-        break;
     }
   }
 
-  if (touchHandler.IsTouching()) {
+  if (state == States::Running && touchHandler.IsTouching()) {
     currentScreen->OnTouchEvent(touchHandler.GetX(), touchHandler.GetY());
   }
 
@@ -480,26 +518,25 @@ void DisplayApp::LoadScreen(Apps app, DisplayApp::FullRefreshDirections directio
   switch (app) {
     case Apps::Launcher: {
       std::array<Screens::Tile::Applications, UserAppTypes::Count> apps;
-      int i = 0;
-      for (const auto& userApp : userApps) {
-        apps[i++] = Screens::Tile::Applications {userApp.icon, userApp.app, true};
-      }
+      std::ranges::transform(userApps, apps.begin(), [this](const auto& userApp) {
+        return Screens::Tile::Applications {userApp.icon, userApp.app, userApp.isAvailable(controllers.filesystem)};
+      });
       currentScreen = std::make_unique<Screens::ApplicationList>(this,
                                                                  settingsController,
                                                                  batteryController,
                                                                  bleController,
+                                                                 alarmController,
                                                                  dateTimeController,
                                                                  filesystem,
                                                                  std::move(apps));
     } break;
     case Apps::Clock: {
-      const auto* watchFace =
-        std::find_if(userWatchFaces.begin(), userWatchFaces.end(), [this](const WatchFaceDescription& watchfaceDescription) {
-          return watchfaceDescription.watchFace == settingsController.GetWatchFace();
-        });
-      if (watchFace != userWatchFaces.end())
+      const auto* watchFace = std::ranges::find_if(userWatchFaces, [this](const WatchFaceDescription& watchfaceDescription) {
+        return watchfaceDescription.watchFace == settingsController.GetWatchFace();
+      });
+      if (watchFace != userWatchFaces.end()) {
         currentScreen.reset(watchFace->create(controllers));
-      else {
+      } else {
         currentScreen.reset(userWatchFaces[0].create(controllers));
       }
       settingsController.SetAppMenu(0);
@@ -542,18 +579,19 @@ void DisplayApp::LoadScreen(Apps app, DisplayApp::FullRefreshDirections directio
                                                                brightnessController,
                                                                motorController,
                                                                settingsController,
-                                                               bleController);
+                                                               bleController,
+                                                               alarmController);
       break;
     case Apps::Settings:
       currentScreen = std::make_unique<Screens::Settings>(this, settingsController);
       break;
     case Apps::SettingWatchFace: {
       std::array<Screens::SettingWatchFace::Item, UserWatchFaceTypes::Count> items;
-      int i = 0;
-      for (const auto& userWatchFace : userWatchFaces) {
-        items[i++] =
-          Screens::SettingWatchFace::Item {userWatchFace.name, userWatchFace.watchFace, userWatchFace.isAvailable(controllers.filesystem)};
-      }
+      std::ranges::transform(userWatchFaces, items.begin(), [this](const WatchFaceDescription& userWatchFace) {
+        return Screens::SettingWatchFace::Item {userWatchFace.name,
+                                                userWatchFace.watchFace,
+                                                userWatchFace.isAvailable(controllers.filesystem)};
+      });
       currentScreen = std::make_unique<Screens::SettingWatchFace>(this, std::move(items), settingsController, filesystem);
     } break;
     case Apps::SettingTimeFormat:
@@ -565,11 +603,8 @@ void DisplayApp::LoadScreen(Apps app, DisplayApp::FullRefreshDirections directio
     case Apps::SettingWakeUp:
       currentScreen = std::make_unique<Screens::SettingWakeUp>(settingsController);
       break;
-    case Apps::SettingHeartRate:
-      currentScreen = std::make_unique<Screens::SettingHeartRate>(settingsController);
-      break;
     case Apps::SettingDisplay:
-      currentScreen = std::make_unique<Screens::SettingDisplay>(this, settingsController);
+      currentScreen = std::make_unique<Screens::SettingDisplay>(settingsController);
       break;
     case Apps::SettingSteps:
       currentScreen = std::make_unique<Screens::SettingSteps>(settingsController);
@@ -586,6 +621,9 @@ void DisplayApp::LoadScreen(Apps app, DisplayApp::FullRefreshDirections directio
     case Apps::SettingBluetooth:
       currentScreen = std::make_unique<Screens::SettingBluetooth>(this, settingsController);
       break;
+    case Apps::SettingOTA:
+      currentScreen = std::make_unique<Screens::SettingOTA>(this, settingsController);
+      break;
     case Apps::BatteryInfo:
       currentScreen = std::make_unique<Screens::BatteryInfo>(batteryController);
       break;
@@ -604,7 +642,7 @@ void DisplayApp::LoadScreen(Apps app, DisplayApp::FullRefreshDirections directio
       currentScreen = std::make_unique<Screens::FlashLight>(*systemTask, brightnessController);
       break;
     default: {
-      const auto* d = std::find_if(userApps.begin(), userApps.end(), [app](const AppDescription& appDescription) {
+      const auto* d = std::ranges::find_if(userApps, [app](const AppDescription& appDescription) {
         return appDescription.app == app;
       });
       if (d != userApps.end()) {

src/displayapp/DisplayApp.h

@@ -49,7 +49,7 @@ namespace Pinetime {
   namespace Applications {
     class DisplayApp {
     public:
-      enum class States { Idle, Running };
+      enum class States { Idle, Running, AOD };
       enum class FullRefreshDirections { None, Up, Down, Left, Right, LeftAnim, RightAnim };
 
       DisplayApp(Drivers::St7789& lcd,
@@ -121,7 +121,7 @@ namespace Pinetime {
 
       TouchEvents GetGesture();
       static void Process(void* instance);
-      void InitHw();
+      void Init();
       void Refresh();
       void LoadNewScreen(Apps app, DisplayApp::FullRefreshDirections direction);
       void LoadScreen(Apps app, DisplayApp::FullRefreshDirections direction);
@@ -139,7 +139,7 @@ namespace Pinetime {
       bool isDimmed = false;
 
       TickType_t CalculateSleepTime();
-      TickType_t alwaysOnTickCount;
+      TickType_t alwaysOnFrameCount;
       TickType_t alwaysOnStartTime;
       // If this is to be changed, make sure the actual always on refresh rate is changed
       // by configuring the LCD refresh timings

src/displayapp/LittleVgl.cpp

@@ -248,6 +248,8 @@ void LittleVgl::SetNewTouchPoint(int16_t x, int16_t y, bool contact) {
   }
 }
 
+// Cancel an ongoing tap
+// Signifies that LVGL should not handle the current tap
 void LittleVgl::CancelTap() {
   if (tapped) {
     isCancelled = true;
@@ -255,6 +257,13 @@ void LittleVgl::CancelTap() {
   }
 }
 
+// Clear the current tapped state
+// Signifies that touch input processing is suspended
+void LittleVgl::ClearTouchState() {
+  touchPoint = {-1, -1};
+  tapped = false;
+}
+
 bool LittleVgl::GetTouchPadInfo(lv_indev_data_t* ptr) {
   ptr->point.x = touchPoint.x;
   ptr->point.y = touchPoint.y;

src/displayapp/LittleVgl.h

@@ -26,6 +26,7 @@ namespace Pinetime {
       void SetFullRefresh(FullRefreshDirections direction);
       void SetNewTouchPoint(int16_t x, int16_t y, bool contact);
       void CancelTap();
+      void ClearTouchState();
 
       bool GetFullRefresh() {
         bool returnValue = fullRefresh;

src/displayapp/Messages.h

@@ -6,6 +6,7 @@ namespace Pinetime {
     namespace Display {
       enum class Messages : uint8_t {
         GoToSleep,
+        GoToAOD,
         GoToRunning,
         UpdateBleConnection,
         TouchEvent,
@@ -23,7 +24,6 @@ namespace Pinetime {
         AlarmTriggered,
         Chime,
         BleRadioEnableToggle,
-        OnChargingEvent,
       };
     }
   }

src/displayapp/UserApps.h

@@ -14,6 +14,7 @@
 #include "displayapp/screens/WatchFaceInfineat.h"
 #include "displayapp/screens/WatchFacePineTimeStyle.h"
 #include "displayapp/screens/WatchFaceTerminal.h"
+#include "displayapp/screens/WatchFacePrideFlag.h"
 
 namespace Pinetime {
   namespace Applications {
@@ -25,6 +26,7 @@ namespace Pinetime {
       Apps app;
       const char* icon;
       Screens::Screen* (*create)(AppControllers& controllers);
+      bool (*isAvailable)(Controllers::FS& fileSystem);
     };
 
     struct WatchFaceDescription {
@@ -36,7 +38,7 @@ namespace Pinetime {
 
     template <Apps t>
     consteval AppDescription CreateAppDescription() {
-      return {AppTraits<t>::app, AppTraits<t>::icon, &AppTraits<t>::Create};
+      return {AppTraits<t>::app, AppTraits<t>::icon, &AppTraits<t>::Create, &AppTraits<t>::IsAvailable};
     }
 
     template <WatchFace t>

src/displayapp/apps/Apps.h.in

@@ -26,6 +26,7 @@ namespace Pinetime {
       StopWatch,
       Metronome,
       Motion,
+      Calculator,
       Steps,
       Dice,
       Weather,
@@ -35,7 +36,6 @@ namespace Pinetime {
       SettingWatchFace,
       SettingTimeFormat,
       SettingWeatherFormat,
-      SettingHeartRate,
       SettingDisplay,
       SettingWakeUp,
       SettingSteps,
@@ -43,6 +43,7 @@ namespace Pinetime {
       SettingChimes,
       SettingShakeThreshold,
       SettingBluetooth,
+      SettingOTA,
       Error
     };
 
@@ -53,6 +54,7 @@ namespace Pinetime {
       Terminal,
       Infineat,
       CasioStyleG7710,
+      PrideFlag,
     };
 
     template <Apps>

src/displayapp/apps/CMakeLists.txt

@@ -13,6 +13,7 @@ else ()
     set(DEFAULT_USER_APP_TYPES "${DEFAULT_USER_APP_TYPES}, Apps::Dice")
     set(DEFAULT_USER_APP_TYPES "${DEFAULT_USER_APP_TYPES}, Apps::Metronome")
     set(DEFAULT_USER_APP_TYPES "${DEFAULT_USER_APP_TYPES}, Apps::Navigation")
+    set(DEFAULT_USER_APP_TYPES "${DEFAULT_USER_APP_TYPES}, Apps::Calculator")
     set(DEFAULT_USER_APP_TYPES "${DEFAULT_USER_APP_TYPES}, Apps::Weather")
     #set(DEFAULT_USER_APP_TYPES "${DEFAULT_USER_APP_TYPES}, Apps::Motion")
     set(USERAPP_TYPES "${DEFAULT_USER_APP_TYPES}" CACHE STRING "List of user apps to build into the firmware")
@@ -27,6 +28,7 @@ else()
     set(DEFAULT_WATCHFACE_TYPES "${DEFAULT_WATCHFACE_TYPES}, WatchFace::Terminal")
     set(DEFAULT_WATCHFACE_TYPES "${DEFAULT_WATCHFACE_TYPES}, WatchFace::Infineat")
     set(DEFAULT_WATCHFACE_TYPES "${DEFAULT_WATCHFACE_TYPES}, WatchFace::CasioStyleG7710")
+    set(DEFAULT_WATCHFACE_TYPES "${DEFAULT_WATCHFACE_TYPES}, WatchFace::PrideFlag")
     set(WATCHFACE_TYPES "${DEFAULT_WATCHFACE_TYPES}" CACHE STRING "List of watch faces to build into the firmware")
 endif()
 

src/displayapp/fonts/CMakeLists.txt

@@ -11,6 +11,7 @@ configure_file(${CMAKE_CURRENT_LIST_DIR}/jetbrains_mono_bold_20.c_M.patch
 if(CMAKE_VERSION VERSION_GREATER_EQUAL 3.12)
    # FindPython3 module introduces with CMake 3.12
    # https://cmake.org/cmake/help/latest/module/FindPython3.html
+   set(Python3_FIND_STRATEGY LOCATION) # https://discourse.cmake.org/t/find-package-python3-is-not-finding-the-correct-python/10563
    find_package(Python3 REQUIRED)
 else()
    set(Python3_EXECUTABLE "python")

src/displayapp/fonts/fonts.json

@@ -7,7 +7,7 @@
          },
          {
             "file": "FontAwesome5-Solid+Brands+Regular.woff",
-            "range": "0xf294, 0xf242, 0xf54b, 0xf21e, 0xf1e6, 0xf017, 0xf129, 0xf03a, 0xf185, 0xf560, 0xf001, 0xf3fd, 0xf1fc, 0xf45d, 0xf59f, 0xf5a0, 0xf027, 0xf028, 0xf6a9, 0xf04b, 0xf04c, 0xf048, 0xf051, 0xf095, 0xf3dd, 0xf04d, 0xf2f2, 0xf024, 0xf252, 0xf569, 0xf06e, 0xf015, 0xf00c, 0xf0f3, 0xf522, 0xf743"
+            "range": "0xf294, 0xf242, 0xf54b, 0xf21e, 0xf1e6, 0xf017, 0xf129, 0xf03a, 0xf185, 0xf560, 0xf001, 0xf3fd, 0xf1fc, 0xf45d, 0xf59f, 0xf5a0, 0xf027, 0xf028, 0xf6a9, 0xf04b, 0xf04c, 0xf048, 0xf051, 0xf095, 0xf3dd, 0xf04d, 0xf2f2, 0xf024, 0xf252, 0xf569, 0xf06e, 0xf015, 0xf00c, 0xf0f3, 0xf522, 0xf743, 0xf1ec, 0xf55a, 0xf3ed"
          }
       ],
       "bpp": 1,

src/displayapp/screens/Alarm.cpp

@@ -48,7 +48,7 @@ Alarm::Alarm(Controllers::AlarmController& alarmController,
              Controllers::Settings::ClockType clockType,
              System::SystemTask& systemTask,
              Controllers::MotorController& motorController)
-  : alarmController {alarmController}, systemTask {systemTask}, motorController {motorController} {
+  : alarmController {alarmController}, wakeLock(systemTask), motorController {motorController} {
 
   hourCounter.Create();
   lv_obj_align(hourCounter.GetObject(), nullptr, LV_ALIGN_IN_TOP_LEFT, 0, 0);
@@ -77,7 +77,7 @@ Alarm::Alarm(Controllers::AlarmController& alarmController,
   btnStop = lv_btn_create(lv_scr_act(), nullptr);
   btnStop->user_data = this;
   lv_obj_set_event_cb(btnStop, btnEventHandler);
-  lv_obj_set_size(btnStop, 115, 50);
+  lv_obj_set_size(btnStop, 240, 70);
   lv_obj_align(btnStop, lv_scr_act(), LV_ALIGN_IN_BOTTOM_LEFT, 0, 0);
   lv_obj_set_style_local_bg_color(btnStop, LV_BTN_PART_MAIN, LV_STATE_DEFAULT, LV_COLOR_RED);
   txtStop = lv_label_create(btnStop, nullptr);
@@ -117,7 +117,7 @@ Alarm::Alarm(Controllers::AlarmController& alarmController,
 
   UpdateAlarmTime();
 
-  if (alarmController.State() == Controllers::AlarmController::AlarmState::Alerting) {
+  if (alarmController.IsAlerting()) {
     SetAlerting();
   } else {
     SetSwitchState(LV_ANIM_OFF);
@@ -125,14 +125,15 @@ Alarm::Alarm(Controllers::AlarmController& alarmController,
 }
 
 Alarm::~Alarm() {
-  if (alarmController.State() == AlarmController::AlarmState::Alerting) {
+  if (alarmController.IsAlerting()) {
     StopAlerting();
   }
   lv_obj_clean(lv_scr_act());
+  alarmController.SaveAlarm();
 }
 
 void Alarm::DisableAlarm() {
-  if (alarmController.State() == AlarmController::AlarmState::Set) {
+  if (alarmController.IsEnabled()) {
     alarmController.DisableAlarm();
     lv_switch_off(enableSwitch, LV_ANIM_ON);
   }
@@ -172,7 +173,7 @@ bool Alarm::OnButtonPushed() {
     HideInfo();
     return true;
   }
-  if (alarmController.State() == AlarmController::AlarmState::Alerting) {
+  if (alarmController.IsAlerting()) {
     StopAlerting();
     return true;
   }
@@ -181,7 +182,7 @@ bool Alarm::OnButtonPushed() {
 
 bool Alarm::OnTouchEvent(Pinetime::Applications::TouchEvents event) {
   // Don't allow closing the screen by swiping while the alarm is alerting
-  return alarmController.State() == AlarmController::AlarmState::Alerting && event == TouchEvents::SwipeDown;
+  return alarmController.IsAlerting() && event == TouchEvents::SwipeDown;
 }
 
 void Alarm::OnValueChanged() {
@@ -202,10 +203,14 @@ void Alarm::UpdateAlarmTime() {
 
 void Alarm::SetAlerting() {
   lv_obj_set_hidden(enableSwitch, true);
+  lv_obj_set_hidden(btnRecur, true);
+  lv_obj_set_hidden(btnInfo, true);
+  hourCounter.HideControls();
+  minuteCounter.HideControls();
   lv_obj_set_hidden(btnStop, false);
   taskStopAlarm = lv_task_create(StopAlarmTaskCallback, pdMS_TO_TICKS(60 * 1000), LV_TASK_PRIO_MID, this);
   motorController.StartRinging();
-  systemTask.PushMessage(System::Messages::DisableSleeping);
+  wakeLock.Lock();
 }
 
 void Alarm::StopAlerting() {
@@ -216,21 +221,20 @@ void Alarm::StopAlerting() {
     lv_task_del(taskStopAlarm);
     taskStopAlarm = nullptr;
   }
-  systemTask.PushMessage(System::Messages::EnableSleeping);
-  lv_obj_set_hidden(enableSwitch, false);
+  wakeLock.Release();
   lv_obj_set_hidden(btnStop, true);
+  hourCounter.ShowControls();
+  minuteCounter.ShowControls();
+  lv_obj_set_hidden(btnInfo, false);
+  lv_obj_set_hidden(btnRecur, false);
+  lv_obj_set_hidden(enableSwitch, false);
 }
 
 void Alarm::SetSwitchState(lv_anim_enable_t anim) {
-  switch (alarmController.State()) {
-    case AlarmController::AlarmState::Set:
-      lv_switch_on(enableSwitch, anim);
-      break;
-    case AlarmController::AlarmState::Not_Set:
-      lv_switch_off(enableSwitch, anim);
-      break;
-    default:
-      break;
+  if (alarmController.IsEnabled()) {
+    lv_switch_on(enableSwitch, anim);
+  } else {
+    lv_switch_off(enableSwitch, anim);
   }
 }
 
@@ -247,7 +251,7 @@ void Alarm::ShowInfo() {
   txtMessage = lv_label_create(btnMessage, nullptr);
   lv_obj_set_style_local_bg_color(btnMessage, LV_BTN_PART_MAIN, LV_STATE_DEFAULT, LV_COLOR_NAVY);
 
-  if (alarmController.State() == AlarmController::AlarmState::Set) {
+  if (alarmController.IsEnabled()) {
     auto timeToAlarm = alarmController.SecondsToAlarm();
 
     auto daysToAlarm = timeToAlarm / 86400;

src/displayapp/screens/Alarm.h

@@ -22,6 +22,7 @@
 #include "displayapp/screens/Screen.h"
 #include "displayapp/widgets/Counter.h"
 #include "displayapp/Controllers.h"
+#include "systemtask/WakeLock.h"
 #include "Symbols.h"
 
 namespace Pinetime {
@@ -43,7 +44,7 @@ namespace Pinetime {
 
       private:
         Controllers::AlarmController& alarmController;
-        System::SystemTask& systemTask;
+        System::WakeLock wakeLock;
         Controllers::MotorController& motorController;
 
         lv_obj_t *btnStop, *txtStop, *btnRecur, *txtRecur, *btnInfo, *enableSwitch;
@@ -77,6 +78,10 @@ namespace Pinetime {
                                   *controllers.systemTask,
                                   controllers.motorController);
       };
+
+      static bool IsAvailable(Pinetime::Controllers::FS& /*filesystem*/) {
+        return true;
+      };
     };
   }
 }

src/displayapp/screens/ApplicationList.cpp

@@ -21,6 +21,7 @@ ApplicationList::ApplicationList(DisplayApp* app,
                                  Pinetime::Controllers::Settings& settingsController,
                                  const Pinetime::Controllers::Battery& batteryController,
                                  const Pinetime::Controllers::Ble& bleController,
+                                 const Pinetime::Controllers::AlarmController& alarmController,
                                  Controllers::DateTime& dateTimeController,
                                  Pinetime::Controllers::FS& filesystem,
                                  std::array<Tile::Applications, UserAppTypes::Count>&& apps)
@@ -28,6 +29,7 @@ ApplicationList::ApplicationList(DisplayApp* app,
     settingsController {settingsController},
     batteryController {batteryController},
     bleController {bleController},
+    alarmController {alarmController},
     dateTimeController {dateTimeController},
     filesystem {filesystem},
     apps {std::move(apps)},
@@ -59,6 +61,7 @@ std::unique_ptr<Screen> ApplicationList::CreateScreen(unsigned int screenNum) co
                                          settingsController,
                                          batteryController,
                                          bleController,
+                                         alarmController,
                                          dateTimeController,
                                          pageApps);
 }

src/displayapp/screens/ApplicationList.h

@@ -18,6 +18,7 @@ namespace Pinetime {
                                  Pinetime::Controllers::Settings& settingsController,
                                  const Pinetime::Controllers::Battery& batteryController,
                                  const Pinetime::Controllers::Ble& bleController,
+                                 const Pinetime::Controllers::AlarmController& alarmController,
                                  Controllers::DateTime& dateTimeController,
                                  Pinetime::Controllers::FS& filesystem,
                                  std::array<Tile::Applications, UserAppTypes::Count>&& apps);
@@ -32,6 +33,7 @@ namespace Pinetime {
         Controllers::Settings& settingsController;
         const Pinetime::Controllers::Battery& batteryController;
         const Pinetime::Controllers::Ble& bleController;
+        const Pinetime::Controllers::AlarmController& alarmController;
         Controllers::DateTime& dateTimeController;
         Pinetime::Controllers::FS& filesystem;
         std::array<Tile::Applications, UserAppTypes::Count> apps;

src/displayapp/screens/BatteryInfo.cpp

@@ -10,33 +10,35 @@ BatteryInfo::BatteryInfo(const Pinetime::Controllers::Battery& batteryController
   batteryPercent = batteryController.PercentRemaining();
   batteryVoltage = batteryController.Voltage();
 
-  charging_bar = lv_bar_create(lv_scr_act(), nullptr);
-  lv_obj_set_size(charging_bar, 200, 15);
-  lv_bar_set_range(charging_bar, 0, 100);
-  lv_obj_align(charging_bar, nullptr, LV_ALIGN_CENTER, 0, 10);
-  lv_bar_set_anim_time(charging_bar, 1000);
-  lv_obj_set_style_local_radius(charging_bar, LV_BAR_PART_BG, LV_STATE_DEFAULT, LV_RADIUS_CIRCLE);
-  lv_obj_set_style_local_bg_color(charging_bar, LV_BAR_PART_BG, LV_STATE_DEFAULT, Colors::bgAlt);
-  lv_obj_set_style_local_bg_opa(charging_bar, LV_BAR_PART_BG, LV_STATE_DEFAULT, LV_OPA_100);
-  lv_obj_set_style_local_bg_color(charging_bar, LV_BAR_PART_INDIC, LV_STATE_DEFAULT, LV_COLOR_RED);
-  lv_bar_set_value(charging_bar, batteryPercent, LV_ANIM_ON);
+  chargingArc = lv_arc_create(lv_scr_act(), nullptr);
+  lv_arc_set_rotation(chargingArc, 270);
+  lv_arc_set_bg_angles(chargingArc, 0, 360);
+  lv_arc_set_adjustable(chargingArc, false);
+  lv_obj_set_size(chargingArc, 180, 180);
+  lv_obj_align(chargingArc, nullptr, LV_ALIGN_CENTER, 0, -30);
+  lv_arc_set_value(chargingArc, batteryPercent);
+  lv_obj_set_style_local_bg_opa(chargingArc, LV_ARC_PART_BG, LV_STATE_DEFAULT, LV_OPA_0);
+  lv_obj_set_style_local_line_color(chargingArc, LV_ARC_PART_BG, LV_STATE_DEFAULT, Colors::bgAlt);
+  lv_obj_set_style_local_border_width(chargingArc, LV_ARC_PART_BG, LV_STATE_DEFAULT, 2);
+  lv_obj_set_style_local_radius(chargingArc, LV_ARC_PART_BG, LV_STATE_DEFAULT, 0);
+  lv_obj_set_style_local_line_color(chargingArc, LV_ARC_PART_INDIC, LV_STATE_DEFAULT, LV_COLOR_LIME);
 
   status = lv_label_create(lv_scr_act(), nullptr);
   lv_label_set_text_static(status, "Reading Battery status");
   lv_label_set_align(status, LV_LABEL_ALIGN_CENTER);
-  lv_obj_align(status, charging_bar, LV_ALIGN_OUT_BOTTOM_MID, 0, 20);
+  lv_obj_align(status, nullptr, LV_ALIGN_IN_BOTTOM_MID, 0, -17);
 
   percent = lv_label_create(lv_scr_act(), nullptr);
-  lv_obj_set_style_local_text_font(percent, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, &jetbrains_mono_76);
-  lv_label_set_text_fmt(percent, "%02i%%", batteryPercent);
+  lv_obj_set_style_local_text_font(percent, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, &jetbrains_mono_42);
+  lv_label_set_text_fmt(percent, "%i%%", batteryPercent);
   lv_label_set_align(percent, LV_LABEL_ALIGN_LEFT);
-  lv_obj_align(percent, nullptr, LV_ALIGN_CENTER, 0, -60);
+  lv_obj_align(percent, chargingArc, LV_ALIGN_CENTER, 0, 0);
 
   voltage = lv_label_create(lv_scr_act(), nullptr);
   lv_obj_set_style_local_text_color(voltage, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, Colors::orange);
   lv_label_set_text_fmt(voltage, "%1i.%02i volts", batteryVoltage / 1000, batteryVoltage % 1000 / 10);
   lv_label_set_align(voltage, LV_LABEL_ALIGN_CENTER);
-  lv_obj_align(voltage, nullptr, LV_ALIGN_CENTER, 0, 95);
+  lv_obj_align(voltage, nullptr, LV_ALIGN_IN_BOTTOM_MID, 0, -7);
 
   taskRefresh = lv_task_create(RefreshTaskCallback, 5000, LV_TASK_PRIO_MID, this);
   Refresh();
@@ -53,22 +55,26 @@ void BatteryInfo::Refresh() {
   batteryVoltage = batteryController.Voltage();
 
   if (batteryController.IsCharging()) {
-    lv_obj_set_style_local_bg_color(charging_bar, LV_BAR_PART_INDIC, LV_STATE_DEFAULT, LV_COLOR_RED);
+    lv_obj_set_style_local_line_color(chargingArc, LV_ARC_PART_INDIC, LV_STATE_DEFAULT, LV_COLOR_LIME);
     lv_label_set_text_static(status, "Charging");
   } else if (batteryPercent == 100) {
-    lv_obj_set_style_local_bg_color(charging_bar, LV_BAR_PART_INDIC, LV_STATE_DEFAULT, LV_COLOR_BLUE);
+    lv_obj_set_style_local_line_color(chargingArc, LV_ARC_PART_INDIC, LV_STATE_DEFAULT, LV_COLOR_BLUE);
     lv_label_set_text_static(status, "Fully charged");
-  } else if (batteryPercent < 10) {
-    lv_obj_set_style_local_bg_color(charging_bar, LV_BAR_PART_INDIC, LV_STATE_DEFAULT, LV_COLOR_YELLOW);
+  } else if (batteryPercent > 15) {
+    lv_obj_set_style_local_line_color(chargingArc, LV_ARC_PART_INDIC, LV_STATE_DEFAULT, LV_COLOR_GREEN);
+    lv_label_set_text_static(status, "Discharging");
+  } else if (batteryPercent > 5) {
+    lv_obj_set_style_local_line_color(chargingArc, LV_ARC_PART_INDIC, LV_STATE_DEFAULT, LV_COLOR_ORANGE);
     lv_label_set_text_static(status, "Battery low");
   } else {
-    lv_obj_set_style_local_bg_color(charging_bar, LV_BAR_PART_INDIC, LV_STATE_DEFAULT, Colors::highlight);
-    lv_label_set_text_static(status, "Discharging");
+    lv_obj_set_style_local_line_color(chargingArc, LV_ARC_PART_INDIC, LV_STATE_DEFAULT, Colors::deepOrange);
+    lv_label_set_text_static(status, "Battery critical");
   }
 
-  lv_label_set_text_fmt(percent, "%02i%%", batteryPercent);
+  lv_label_set_text_fmt(percent, "%i%%", batteryPercent);
+  lv_obj_align(percent, chargingArc, LV_ALIGN_CENTER, 0, 0);
 
-  lv_obj_align(status, charging_bar, LV_ALIGN_OUT_BOTTOM_MID, 0, 20);
+  lv_obj_align(status, voltage, LV_ALIGN_IN_BOTTOM_MID, 0, -27);
   lv_label_set_text_fmt(voltage, "%1i.%02i volts", batteryVoltage / 1000, batteryVoltage % 1000 / 10);
-  lv_bar_set_value(charging_bar, batteryPercent, LV_ANIM_ON);
+  lv_arc_set_value(chargingArc, batteryPercent);
 }

src/displayapp/screens/BatteryInfo.h

@@ -24,7 +24,7 @@ namespace Pinetime {
 
         lv_obj_t* voltage;
         lv_obj_t* percent;
-        lv_obj_t* charging_bar;
+        lv_obj_t* chargingArc;
         lv_obj_t* status;
 
         lv_task_t* taskRefresh;

src/displayapp/screens/Calculator.cpp

@@ -0,0 +1,375 @@
+#include <cmath>
+#include <cinttypes>
+#include "Calculator.h"
+#include "displayapp/InfiniTimeTheme.h"
+#include "Symbols.h"
+
+using namespace Pinetime::Applications::Screens;
+
+static void eventHandler(lv_obj_t* obj, lv_event_t event) {
+  auto app = static_cast<Calculator*>(obj->user_data);
+  app->OnButtonEvent(obj, event);
+}
+
+Calculator::~Calculator() {
+  lv_obj_clean(lv_scr_act());
+}
+
+constexpr const char* const buttonMap[] = {
+  "7", "8", "9", Symbols::backspace, "\n", "4", "5", "6", "+ -", "\n", "1", "2", "3", "* /", "\n", "0", ".", "(-)", "=", ""};
+
+Calculator::Calculator() {
+  resultLabel = lv_label_create(lv_scr_act(), nullptr);
+  lv_label_set_long_mode(resultLabel, LV_LABEL_LONG_CROP);
+  lv_label_set_align(resultLabel, LV_LABEL_ALIGN_RIGHT);
+  lv_label_set_text_fmt(resultLabel, "%" PRId64, result);
+  lv_obj_set_size(resultLabel, 200, 20);
+  lv_obj_set_pos(resultLabel, 10, 5);
+
+  valueLabel = lv_label_create(lv_scr_act(), nullptr);
+  lv_label_set_long_mode(valueLabel, LV_LABEL_LONG_CROP);
+  lv_label_set_align(valueLabel, LV_LABEL_ALIGN_RIGHT);
+  lv_label_set_text_fmt(valueLabel, "%" PRId64, value);
+  lv_obj_set_size(valueLabel, 200, 20);
+  lv_obj_set_pos(valueLabel, 10, 35);
+
+  buttonMatrix = lv_btnmatrix_create(lv_scr_act(), nullptr);
+  buttonMatrix->user_data = this;
+  lv_obj_set_event_cb(buttonMatrix, eventHandler);
+  lv_btnmatrix_set_map(buttonMatrix, const_cast<const char**>(buttonMap));
+  lv_btnmatrix_set_one_check(buttonMatrix, true);
+  lv_obj_set_size(buttonMatrix, 238, 180);
+  lv_obj_set_style_local_bg_color(buttonMatrix, LV_BTNMATRIX_PART_BTN, LV_STATE_DEFAULT, Colors::bgAlt);
+  lv_obj_set_style_local_pad_inner(buttonMatrix, LV_BTNMATRIX_PART_BG, LV_STATE_DEFAULT, 1);
+  lv_obj_set_style_local_pad_top(buttonMatrix, LV_BTNMATRIX_PART_BG, LV_STATE_DEFAULT, 1);
+  lv_obj_set_style_local_pad_bottom(buttonMatrix, LV_BTNMATRIX_PART_BG, LV_STATE_DEFAULT, 1);
+  lv_obj_set_style_local_pad_left(buttonMatrix, LV_BTNMATRIX_PART_BG, LV_STATE_DEFAULT, 1);
+  lv_obj_set_style_local_pad_right(buttonMatrix, LV_BTNMATRIX_PART_BG, LV_STATE_DEFAULT, 1);
+  lv_obj_align(buttonMatrix, nullptr, LV_ALIGN_IN_BOTTOM_MID, 0, 0);
+
+  lv_obj_set_style_local_bg_opa(buttonMatrix, LV_BTNMATRIX_PART_BTN, LV_STATE_CHECKED, LV_OPA_COVER);
+  lv_obj_set_style_local_bg_grad_stop(buttonMatrix, LV_BTNMATRIX_PART_BTN, LV_STATE_CHECKED, 128);
+  lv_obj_set_style_local_bg_main_stop(buttonMatrix, LV_BTNMATRIX_PART_BTN, LV_STATE_CHECKED, 128);
+}
+
+void Calculator::OnButtonEvent(lv_obj_t* obj, lv_event_t event) {
+  if ((obj == buttonMatrix) && (event == LV_EVENT_PRESSED)) {
+    HandleInput();
+  }
+}
+
+void Calculator::HandleInput() {
+  const char* buttonText = lv_btnmatrix_get_active_btn_text(buttonMatrix);
+
+  if (buttonText == nullptr) {
+    return;
+  }
+
+  if ((equalSignPressedBefore && (*buttonText != '=')) || (error != Error::None)) {
+    ResetInput();
+    UpdateOperation();
+  }
+
+  // we only compare the first char because it is enough
+  switch (*buttonText) {
+    case '0':
+    case '1':
+    case '2':
+    case '3':
+    case '4':
+    case '5':
+    case '6':
+    case '7':
+    case '8':
+    case '9': {
+      // *buttonText is the first char in buttonText
+      // "- '0'" results in the int value of the char
+      uint8_t digit = (*buttonText) - '0';
+      int8_t sign = (value < 0) ? -1 : 1;
+
+      // if this is true, we already pressed the . button
+      if (offset < FIXED_POINT_OFFSET) {
+        value += sign * offset * digit;
+        offset /= 10;
+      } else if (value <= MAX_VALUE / 10) {
+        value *= 10;
+        value += sign * offset * digit;
+      }
+    } break;
+
+    // unary minus
+    case '(':
+      value = -value;
+      break;
+
+    case '.':
+      if (offset == FIXED_POINT_OFFSET) {
+        offset /= 10;
+      }
+      break;
+
+    // for every operator we:
+    // - eval the current operator if value > FIXED_POINT_OFFSET
+    // - then set the new operator
+    // - + and - as well as * and / cycle on the same button
+    case '+':
+      if (value != 0) {
+        Eval();
+        ResetInput();
+      }
+
+      switch (operation) {
+        case '+':
+          operation = '-';
+          break;
+        case '-':
+          operation = ' ';
+          break;
+        default:
+          operation = '+';
+          break;
+      }
+      UpdateOperation();
+      break;
+
+    case '*':
+      if (value != 0) {
+        Eval();
+        ResetInput();
+      }
+
+      switch (operation) {
+        case '*':
+          operation = '/';
+          break;
+        case '/':
+          operation = ' ';
+          break;
+        default:
+          operation = '*';
+          break;
+      }
+      UpdateOperation();
+      break;
+
+    // this is a little hacky because it matches only the first char
+    case Symbols::backspace[0]:
+      if (value != 0) {
+        // delete one value digit
+        if (offset < FIXED_POINT_OFFSET) {
+          if (offset == 0) {
+            offset = 1;
+          } else {
+            offset *= 10;
+          }
+        } else {
+          value /= 10;
+        }
+        if (offset < FIXED_POINT_OFFSET) {
+          value -= value % (10 * offset);
+        } else {
+          value -= value % offset;
+        }
+      } else if (offset < FIXED_POINT_OFFSET) {
+        if (offset == 0) {
+          offset = 1;
+        } else {
+          offset *= 10;
+        }
+      } else {
+        // reset the result
+        result = 0;
+      }
+
+      if (value == 0) {
+        operation = ' ';
+        UpdateOperation();
+      }
+      break;
+
+    case '=':
+      equalSignPressedBefore = true;
+      Eval();
+      // If the operation is ' ' then we move the value to the result.
+      // We reset the input after this.
+      // This seems more convenient.
+      if (operation == ' ') {
+        ResetInput();
+      }
+      break;
+  }
+
+  UpdateValueLabel();
+  UpdateResultLabel();
+}
+
+void Calculator::UpdateOperation() const {
+  switch (operation) {
+    case '+':
+      lv_obj_set_style_local_bg_grad_dir(buttonMatrix, LV_BTNMATRIX_PART_BTN, LV_STATE_CHECKED, LV_GRAD_DIR_HOR);
+      lv_obj_set_style_local_bg_color(buttonMatrix, LV_BTNMATRIX_PART_BTN, LV_STATE_CHECKED, Colors::deepOrange);
+      lv_obj_set_style_local_bg_grad_color(buttonMatrix, LV_BTNMATRIX_PART_BTN, LV_STATE_CHECKED, Colors::bgAlt);
+      lv_btnmatrix_set_btn_ctrl(buttonMatrix, 7, LV_BTNMATRIX_CTRL_CHECK_STATE);
+      break;
+    case '-':
+      lv_obj_set_style_local_bg_grad_dir(buttonMatrix, LV_BTNMATRIX_PART_BTN, LV_STATE_CHECKED, LV_GRAD_DIR_HOR);
+      lv_obj_set_style_local_bg_color(buttonMatrix, LV_BTNMATRIX_PART_BTN, LV_STATE_CHECKED, Colors::bgAlt);
+      lv_obj_set_style_local_bg_grad_color(buttonMatrix, LV_BTNMATRIX_PART_BTN, LV_STATE_CHECKED, Colors::deepOrange);
+      lv_btnmatrix_set_btn_ctrl(buttonMatrix, 7, LV_BTNMATRIX_CTRL_CHECK_STATE);
+      break;
+    case '*':
+      lv_obj_set_style_local_bg_grad_dir(buttonMatrix, LV_BTNMATRIX_PART_BTN, LV_STATE_CHECKED, LV_GRAD_DIR_HOR);
+      lv_obj_set_style_local_bg_color(buttonMatrix, LV_BTNMATRIX_PART_BTN, LV_STATE_CHECKED, Colors::deepOrange);
+      lv_obj_set_style_local_bg_grad_color(buttonMatrix, LV_BTNMATRIX_PART_BTN, LV_STATE_CHECKED, Colors::bgAlt);
+      lv_btnmatrix_set_btn_ctrl(buttonMatrix, 11, LV_BTNMATRIX_CTRL_CHECK_STATE);
+      break;
+    case '/':
+      lv_obj_set_style_local_bg_grad_dir(buttonMatrix, LV_BTNMATRIX_PART_BTN, LV_STATE_CHECKED, LV_GRAD_DIR_HOR);
+      lv_obj_set_style_local_bg_color(buttonMatrix, LV_BTNMATRIX_PART_BTN, LV_STATE_CHECKED, Colors::bgAlt);
+      lv_obj_set_style_local_bg_grad_color(buttonMatrix, LV_BTNMATRIX_PART_BTN, LV_STATE_CHECKED, Colors::deepOrange);
+      lv_btnmatrix_set_btn_ctrl(buttonMatrix, 11, LV_BTNMATRIX_CTRL_CHECK_STATE);
+      break;
+    default:
+      lv_btnmatrix_clear_btn_ctrl_all(buttonMatrix, LV_BTNMATRIX_CTRL_CHECK_STATE);
+      break;
+  }
+}
+
+void Calculator::ResetInput() {
+  value = 0;
+  offset = FIXED_POINT_OFFSET;
+  operation = ' ';
+  equalSignPressedBefore = false;
+  error = Error::None;
+}
+
+void Calculator::UpdateResultLabel() const {
+  int64_t integer = result / FIXED_POINT_OFFSET;
+  int64_t remainder = result % FIXED_POINT_OFFSET;
+  bool negative = (remainder < 0);
+
+  if (remainder == 0) {
+    lv_label_set_text_fmt(resultLabel, "%" PRId64, integer);
+    return;
+  }
+
+  if (remainder < 0) {
+    remainder = -remainder;
+  }
+
+  uint8_t minWidth = N_DECIMALS;
+
+  // cut "0"-digits on the right
+  while ((remainder > 0) && (remainder % 10 == 0)) {
+    remainder /= 10;
+    minWidth--;
+  }
+
+  if ((integer == 0) && negative) {
+    lv_label_set_text_fmt(resultLabel, "-0.%0*" PRId64, minWidth, remainder);
+  } else {
+    lv_label_set_text_fmt(resultLabel, "%" PRId64 ".%0*" PRId64, integer, minWidth, remainder);
+  }
+}
+
+void Calculator::UpdateValueLabel() {
+  switch (error) {
+    case Error::TooLarge:
+      lv_label_set_text_static(valueLabel, "too large");
+      break;
+    case Error::ZeroDivision:
+      lv_label_set_text_static(valueLabel, "zero division");
+      break;
+    case Error::None:
+    default: {
+      int64_t integer = value / FIXED_POINT_OFFSET;
+      int64_t remainder = value % FIXED_POINT_OFFSET;
+      bool negative = (remainder < 0);
+
+      int64_t printRemainder = remainder < 0 ? -remainder : remainder;
+
+      uint8_t minWidth = 0;
+      int64_t tmpOffset = offset;
+
+      if (tmpOffset == 0) {
+        tmpOffset = 1;
+        minWidth = 1;
+      }
+      while (tmpOffset < FIXED_POINT_OFFSET) {
+        tmpOffset *= 10;
+        minWidth++;
+      }
+      minWidth--;
+
+      for (uint8_t i = minWidth; i < N_DECIMALS; i++) {
+        printRemainder /= 10;
+      }
+
+      if ((integer == 0) && negative) {
+        lv_label_set_text_fmt(valueLabel, "-0.%0*" PRId64, minWidth, printRemainder);
+      } else if (offset == FIXED_POINT_OFFSET) {
+        lv_label_set_text_fmt(valueLabel, "%" PRId64, integer);
+      } else if ((offset == (FIXED_POINT_OFFSET / 10)) && (remainder == 0)) {
+        lv_label_set_text_fmt(valueLabel, "%" PRId64 ".", integer);
+      } else {
+        lv_label_set_text_fmt(valueLabel, "%" PRId64 ".%0*" PRId64, integer, minWidth, printRemainder);
+      }
+    } break;
+  }
+}
+
+// update the result based on value and operation
+void Calculator::Eval() {
+  switch (operation) {
+    case ' ':
+      result = value;
+      break;
+
+    case '+':
+      // check for overflow
+      if (((result > 0) && (value > (MAX_VALUE - result))) || ((result < 0) && (value < (MIN_VALUE - result)))) {
+        error = Error::TooLarge;
+        break;
+      }
+
+      result += value;
+      break;
+    case '-':
+      // check for overflow
+      if (((result < 0) && (value > (MAX_VALUE + result))) || ((result > 0) && (value < (MIN_VALUE + result)))) {
+        error = Error::TooLarge;
+        break;
+      }
+
+      result -= value;
+      break;
+    case '*':
+      // check for overflow
+      // while dividing we eliminate the fixed point offset
+      // therefore we have to multiply it again for the comparison with value
+      // we also assume here that MAX_VALUE == -MIN_VALUE
+      if ((result != 0) && (std::abs(value) > (FIXED_POINT_OFFSET * (MAX_VALUE / std::abs(result))))) {
+        error = Error::TooLarge;
+        break;
+      }
+
+      result *= value;
+      // fixed point offset was multiplied too
+      result /= FIXED_POINT_OFFSET;
+      break;
+    case '/':
+      // check for zero division
+      if (value == 0) {
+        error = Error::ZeroDivision;
+        break;
+      }
+
+      // fixed point offset will be divided too
+      result *= FIXED_POINT_OFFSET;
+      result /= value;
+      break;
+
+    default:
+      break;
+  }
+}

src/displayapp/screens/Calculator.h

@@ -0,0 +1,87 @@
+#pragma once
+
+#include "displayapp/screens/Screen.h"
+#include "displayapp/apps/Apps.h"
+#include "displayapp/Controllers.h"
+#include "Symbols.h"
+
+namespace {
+  constexpr int64_t powi(int64_t base, uint8_t exponent) {
+    int64_t value = 1;
+    while (exponent) {
+      value *= base;
+      exponent--;
+    }
+    return value;
+  }
+}
+
+namespace Pinetime {
+  namespace Applications {
+    namespace Screens {
+      class Calculator : public Screen {
+      public:
+        ~Calculator() override;
+
+        Calculator();
+
+        void OnButtonEvent(lv_obj_t* obj, lv_event_t event);
+
+      private:
+        lv_obj_t* buttonMatrix {};
+        lv_obj_t* valueLabel {};
+        lv_obj_t* resultLabel {};
+
+        void Eval();
+        void ResetInput();
+        void HandleInput();
+        void UpdateValueLabel();
+        void UpdateResultLabel() const;
+        void UpdateOperation() const;
+
+        // change this if you want to change the number of decimals
+        // keep in mind, that we only have 12 digits in total (see MAX_DIGITS)
+        // due to the fixed point implementation
+        static constexpr uint8_t N_DECIMALS = 3;
+        // this is the constant default offset
+        static constexpr int64_t FIXED_POINT_OFFSET = powi(10, N_DECIMALS);
+        // this is the current offset, may vary after pressing '.'
+        int64_t offset = FIXED_POINT_OFFSET;
+
+        // the screen can show 12 chars
+        // but two are needed for '.' and '-'
+        static constexpr uint8_t MAX_DIGITS = 12;
+        static constexpr int64_t MAX_VALUE = powi(10, MAX_DIGITS) - 1;
+        // this is assumed in the multiplication overflow!
+        static constexpr int64_t MIN_VALUE = -MAX_VALUE;
+
+        int64_t value = 0;
+        int64_t result = 0;
+        char operation = ' ';
+        bool equalSignPressedBefore = false;
+
+        enum Error {
+          TooLarge,
+          ZeroDivision,
+          None,
+        };
+
+        Error error = Error::None;
+      };
+    }
+
+    template <>
+    struct AppTraits<Apps::Calculator> {
+      static constexpr Apps app = Apps::Calculator;
+      static constexpr const char* icon = Screens::Symbols::calculator;
+
+      static Screens::Screen* Create(AppControllers& /* controllers */) {
+        return new Screens::Calculator();
+      };
+
+      static bool IsAvailable(Pinetime::Controllers::FS& /*filesystem*/) {
+        return true;
+      };
+    };
+  }
+}

src/displayapp/screens/Dice.h

@@ -56,6 +56,10 @@ namespace Pinetime {
       static Screens::Screen* Create(AppControllers& controllers) {
         return new Screens::Dice(controllers.motionController, controllers.motorController, controllers.settingsController);
       };
+
+      static bool IsAvailable(Pinetime::Controllers::FS& /*filesystem*/) {
+        return true;
+      };
     };
   }
 }

src/displayapp/screens/FirmwareUpdate.cpp

@@ -2,6 +2,7 @@
 #include <lvgl/lvgl.h>
 #include "components/ble/BleController.h"
 #include "displayapp/DisplayApp.h"
+#include "displayapp/InfiniTimeTheme.h"
 
 using namespace Pinetime::Applications::Screens;
 
@@ -12,6 +13,9 @@ FirmwareUpdate::FirmwareUpdate(const Pinetime::Controllers::Ble& bleController)
   lv_obj_align(titleLabel, nullptr, LV_ALIGN_IN_TOP_MID, 0, 50);
 
   bar1 = lv_bar_create(lv_scr_act(), nullptr);
+  lv_obj_set_style_local_bg_color(bar1, LV_BAR_PART_BG, LV_STATE_DEFAULT, Colors::bgAlt);
+  lv_obj_set_style_local_bg_opa(bar1, LV_BAR_PART_BG, LV_STATE_DEFAULT, LV_OPA_100);
+  lv_obj_set_style_local_radius(bar1, LV_BAR_PART_BG, LV_STATE_DEFAULT, LV_RADIUS_CIRCLE);
   lv_obj_set_size(bar1, 200, 30);
   lv_obj_align(bar1, nullptr, LV_ALIGN_CENTER, 0, 0);
   lv_bar_set_range(bar1, 0, 1000);
@@ -75,7 +79,7 @@ void FirmwareUpdate::DisplayProgression() const {
   const uint32_t total = bleController.FirmwareUpdateTotalBytes();
   const int16_t permille = current / (total / 1000);
 
-  lv_label_set_text_fmt(percentLabel, "%d %%", permille / 10);
+  lv_label_set_text_fmt(percentLabel, "%d%%", permille / 10);
 
   lv_bar_set_value(bar1, permille, LV_ANIM_OFF);
 }

src/displayapp/screens/FlashLight.cpp

@@ -15,7 +15,7 @@ namespace {
 }
 
 FlashLight::FlashLight(System::SystemTask& systemTask, Controllers::BrightnessController& brightnessController)
-  : systemTask {systemTask}, brightnessController {brightnessController} {
+  : wakeLock(systemTask), brightnessController {brightnessController} {
 
   previousBrightnessLevel = brightnessController.Level();
   brightnessController.Set(Controllers::BrightnessController::Levels::Low);
@@ -47,14 +47,13 @@ FlashLight::FlashLight(System::SystemTask& systemTask, Controllers::BrightnessCo
   backgroundAction->user_data = this;
   lv_obj_set_event_cb(backgroundAction, EventHandler);
 
-  systemTask.PushMessage(Pinetime::System::Messages::DisableSleeping);
+  wakeLock.Lock();
 }
 
 FlashLight::~FlashLight() {
   lv_obj_clean(lv_scr_act());
   lv_obj_set_style_local_bg_color(lv_scr_act(), LV_OBJ_PART_MAIN, LV_STATE_DEFAULT, LV_COLOR_BLACK);
   brightnessController.Set(previousBrightnessLevel);
-  systemTask.PushMessage(Pinetime::System::Messages::EnableSleeping);
 }
 
 void FlashLight::SetColors() {

src/displayapp/screens/FlashLight.h

@@ -3,6 +3,7 @@
 #include "displayapp/screens/Screen.h"
 #include "components/brightness/BrightnessController.h"
 #include "systemtask/SystemTask.h"
+#include "systemtask/WakeLock.h"
 #include <cstdint>
 #include <lvgl/lvgl.h>
 
@@ -23,7 +24,7 @@ namespace Pinetime {
         void SetIndicators();
         void SetColors();
 
-        Pinetime::System::SystemTask& systemTask;
+        Pinetime::System::WakeLock wakeLock;
         Controllers::BrightnessController& brightnessController;
 
         Controllers::BrightnessController::Levels brightnessLevel = Controllers::BrightnessController::Levels::High;

src/displayapp/screens/HeartRate.cpp

@@ -29,7 +29,7 @@ namespace {
 }
 
 HeartRate::HeartRate(Controllers::HeartRateController& heartRateController, System::SystemTask& systemTask)
-  : heartRateController {heartRateController}, systemTask {systemTask} {
+  : heartRateController {heartRateController}, wakeLock(systemTask) {
   bool isHrRunning = heartRateController.State() != Controllers::HeartRateController::States::Stopped;
   label_hr = lv_label_create(lv_scr_act(), nullptr);
 
@@ -63,7 +63,7 @@ HeartRate::HeartRate(Controllers::HeartRateController& heartRateController, Syst
   label_startStop = lv_label_create(btn_startStop, nullptr);
   UpdateStartStopButton(isHrRunning);
   if (isHrRunning) {
-    systemTask.PushMessage(Pinetime::System::Messages::DisableSleeping);
+    wakeLock.Lock();
   }
 
   taskRefresh = lv_task_create(RefreshTaskCallback, 100, LV_TASK_PRIO_MID, this);
@@ -72,7 +72,6 @@ HeartRate::HeartRate(Controllers::HeartRateController& heartRateController, Syst
 HeartRate::~HeartRate() {
   lv_task_del(taskRefresh);
   lv_obj_clean(lv_scr_act());
-  systemTask.PushMessage(Pinetime::System::Messages::EnableSleeping);
 }
 
 void HeartRate::Refresh() {
@@ -101,12 +100,12 @@ void HeartRate::OnStartStopEvent(lv_event_t event) {
     if (heartRateController.State() == Controllers::HeartRateController::States::Stopped) {
       heartRateController.Start();
       UpdateStartStopButton(heartRateController.State() != Controllers::HeartRateController::States::Stopped);
-      systemTask.PushMessage(Pinetime::System::Messages::DisableSleeping);
+      wakeLock.Lock();
       lv_obj_set_style_local_text_color(label_hr, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, Colors::highlight);
     } else {
       heartRateController.Stop();
       UpdateStartStopButton(heartRateController.State() != Controllers::HeartRateController::States::Stopped);
-      systemTask.PushMessage(Pinetime::System::Messages::EnableSleeping);
+      wakeLock.Release();
       lv_obj_set_style_local_text_color(label_hr, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, Colors::lightGray);
     }
   }

src/displayapp/screens/HeartRate.h

@@ -4,6 +4,7 @@
 #include <chrono>
 #include "displayapp/screens/Screen.h"
 #include "systemtask/SystemTask.h"
+#include "systemtask/WakeLock.h"
 #include "Symbols.h"
 #include <lvgl/src/lv_core/lv_style.h>
 #include <lvgl/src/lv_core/lv_obj.h>
@@ -27,7 +28,7 @@ namespace Pinetime {
 
       private:
         Controllers::HeartRateController& heartRateController;
-        Pinetime::System::SystemTask& systemTask;
+        Pinetime::System::WakeLock wakeLock;
         void UpdateStartStopButton(bool isRunning);
         lv_obj_t* label_hr;
         lv_obj_t* label_bpm;
@@ -47,6 +48,10 @@ namespace Pinetime {
       static Screens::Screen* Create(AppControllers& controllers) {
         return new Screens::HeartRate(controllers.heartRateController, *controllers.systemTask);
       };
+
+      static bool IsAvailable(Pinetime::Controllers::FS& /*filesystem*/) {
+        return true;
+      };
     };
   }
 }

src/displayapp/screens/InfiniPaint.h

@@ -47,6 +47,10 @@ namespace Pinetime {
       static Screens::Screen* Create(AppControllers& controllers) {
         return new Screens::InfiniPaint(controllers.lvgl, controllers.motorController);
       };
+
+      static bool IsAvailable(Pinetime::Controllers::FS& /*filesystem*/) {
+        return true;
+      };
     };
   }
 }

src/displayapp/screens/Metronome.cpp

@@ -22,7 +22,7 @@ namespace {
 }
 
 Metronome::Metronome(Controllers::MotorController& motorController, System::SystemTask& systemTask)
-  : motorController {motorController}, systemTask {systemTask} {
+  : motorController {motorController}, wakeLock(systemTask) {
 
   bpmArc = lv_arc_create(lv_scr_act(), nullptr);
   bpmArc->user_data = this;
@@ -72,7 +72,6 @@ Metronome::Metronome(Controllers::MotorController& motorController, System::Syst
 
 Metronome::~Metronome() {
   lv_task_del(taskRefresh);
-  systemTask.PushMessage(System::Messages::EnableSleeping);
   lv_obj_clean(lv_scr_act());
 }
 
@@ -128,12 +127,12 @@ void Metronome::OnEvent(lv_obj_t* obj, lv_event_t event) {
         metronomeStarted = !metronomeStarted;
         if (metronomeStarted) {
           lv_label_set_text_static(lblPlayPause, Symbols::pause);
-          systemTask.PushMessage(System::Messages::DisableSleeping);
+          wakeLock.Lock();
           startTime = xTaskGetTickCount();
           counter = 1;
         } else {
           lv_label_set_text_static(lblPlayPause, Symbols::play);
-          systemTask.PushMessage(System::Messages::EnableSleeping);
+          wakeLock.Release();
         }
       }
       break;

src/displayapp/screens/Metronome.h

@@ -1,6 +1,7 @@
 #pragma once
 
 #include "systemtask/SystemTask.h"
+#include "systemtask/WakeLock.h"
 #include "components/motor/MotorController.h"
 #include "displayapp/screens/Screen.h"
 #include "Symbols.h"
@@ -21,7 +22,7 @@ namespace Pinetime {
         TickType_t startTime = 0;
         TickType_t tappedTime = 0;
         Controllers::MotorController& motorController;
-        System::SystemTask& systemTask;
+        System::WakeLock wakeLock;
         int16_t bpm = 120;
         uint8_t bpb = 4;
         uint8_t counter = 1;
@@ -46,6 +47,10 @@ namespace Pinetime {
       static Screens::Screen* Create(AppControllers& controllers) {
         return new Screens::Metronome(controllers.motorController, *controllers.systemTask);
       };
+
+      static bool IsAvailable(Pinetime::Controllers::FS& /*filesystem*/) {
+        return true;
+      };
     };
   }
 }

src/displayapp/screens/Motion.h

@@ -41,6 +41,10 @@ namespace Pinetime {
       static Screens::Screen* Create(AppControllers& controllers) {
         return new Screens::Motion(controllers.motionController);
       };
+
+      static bool IsAvailable(Pinetime::Controllers::FS& /*filesystem*/) {
+        return true;
+      };
     };
   }
 }

src/displayapp/screens/Music.cpp

@@ -23,6 +23,7 @@
 #include "displayapp/icons/music/disc.c"
 #include "displayapp/icons/music/disc_f_1.c"
 #include "displayapp/icons/music/disc_f_2.c"
+#include "displayapp/InfiniTimeTheme.h"
 
 using namespace Pinetime::Applications::Screens;
 
@@ -52,8 +53,7 @@ Music::Music(Pinetime::Controllers::MusicService& music) : musicService(music) {
 
   lv_style_init(&btn_style);
   lv_style_set_radius(&btn_style, LV_STATE_DEFAULT, 20);
-  lv_style_set_bg_color(&btn_style, LV_STATE_DEFAULT, LV_COLOR_AQUA);
-  lv_style_set_bg_opa(&btn_style, LV_STATE_DEFAULT, LV_OPA_50);
+  lv_style_set_bg_color(&btn_style, LV_STATE_DEFAULT, Colors::bgAlt);
 
   btnVolDown = lv_btn_create(lv_scr_act(), nullptr);
   btnVolDown->user_data = this;
@@ -114,18 +114,18 @@ Music::Music(Pinetime::Controllers::MusicService& music) : musicService(music) {
   constexpr int8_t MIDDLE_OFFSET = -25;
   txtArtist = lv_label_create(lv_scr_act(), nullptr);
   lv_label_set_long_mode(txtArtist, LV_LABEL_LONG_SROLL_CIRC);
-  lv_obj_align(txtArtist, nullptr, LV_ALIGN_IN_LEFT_MID, 12, MIDDLE_OFFSET + 1 * FONT_HEIGHT);
+  lv_obj_align(txtArtist, nullptr, LV_ALIGN_IN_LEFT_MID, 12, MIDDLE_OFFSET + 2 * FONT_HEIGHT + LINE_PAD);
   lv_label_set_align(txtArtist, LV_ALIGN_IN_LEFT_MID);
   lv_obj_set_width(txtArtist, LV_HOR_RES - 12);
-  lv_label_set_text_static(txtArtist, "Artist Name");
+  lv_label_set_text_static(txtArtist, "");
+  lv_obj_set_style_local_text_color(txtArtist, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, Colors::lightGray);
 
   txtTrack = lv_label_create(lv_scr_act(), nullptr);
   lv_label_set_long_mode(txtTrack, LV_LABEL_LONG_SROLL_CIRC);
-  lv_obj_align(txtTrack, nullptr, LV_ALIGN_IN_LEFT_MID, 12, MIDDLE_OFFSET + 2 * FONT_HEIGHT + LINE_PAD);
-
+  lv_obj_align(txtTrack, nullptr, LV_ALIGN_IN_LEFT_MID, 12, MIDDLE_OFFSET + 1 * FONT_HEIGHT);
   lv_label_set_align(txtTrack, LV_ALIGN_IN_LEFT_MID);
   lv_obj_set_width(txtTrack, LV_HOR_RES - 12);
-  lv_label_set_text_static(txtTrack, "This is a very long getTrack name");
+  lv_label_set_text_static(txtTrack, "");
 
   /** Init animation */
   imgDisc = lv_img_create(lv_scr_act(), nullptr);

src/displayapp/screens/Music.h

@@ -94,6 +94,10 @@ namespace Pinetime {
       static Screens::Screen* Create(AppControllers& controllers) {
         return new Screens::Music(*controllers.musicService);
       };
+
+      static bool IsAvailable(Pinetime::Controllers::FS& /*filesystem*/) {
+        return true;
+      };
     };
   }
 }

src/displayapp/screens/Navigation.h

@@ -67,6 +67,10 @@ namespace Pinetime {
       static Screens::Screen* Create(AppControllers& controllers) {
         return new Screens::Navigation(*controllers.navigationService);
       };
+
+      static bool IsAvailable(Pinetime::Controllers::FS& filesystem) {
+        return Screens::Navigation::IsAvailable(filesystem);
+      };
     };
   }
 }

src/displayapp/screens/Notifications.cpp

@@ -20,7 +20,7 @@ Notifications::Notifications(DisplayApp* app,
     notificationManager {notificationManager},
     alertNotificationService {alertNotificationService},
     motorController {motorController},
-    systemTask {systemTask},
+    wakeLock(systemTask),
     mode {mode} {
 
   notificationManager.ClearNewNotificationFlag();
@@ -40,7 +40,7 @@ Notifications::Notifications(DisplayApp* app,
     validDisplay = false;
   }
   if (mode == Modes::Preview) {
-    systemTask.PushMessage(System::Messages::DisableSleeping);
+    wakeLock.Lock();
     if (notification.category == Controllers::NotificationManager::Categories::IncomingCall) {
       motorController.StartRinging();
     } else {
@@ -65,7 +65,6 @@ Notifications::~Notifications() {
   lv_task_del(taskRefresh);
   // make sure we stop any vibrations before exiting
   motorController.StopRinging();
-  systemTask.PushMessage(System::Messages::EnableSleeping);
   lv_obj_clean(lv_scr_act());
 }
 
@@ -82,7 +81,6 @@ void Notifications::Refresh() {
 
   } else if (mode == Modes::Preview && dismissingNotification) {
     running = false;
-    currentItem = std::make_unique<NotificationItem>(alertNotificationService, motorController);
 
   } else if (dismissingNotification) {
     dismissingNotification = false;
@@ -113,15 +111,15 @@ void Notifications::Refresh() {
                                                        alertNotificationService,
                                                        motorController);
     } else {
-      currentItem = std::make_unique<NotificationItem>(alertNotificationService, motorController);
+      running = false;
     }
   }
 
-  running = currentItem->IsRunning() && running;
+  running = running && currentItem->IsRunning();
 }
 
 void Notifications::OnPreviewInteraction() {
-  systemTask.PushMessage(System::Messages::EnableSleeping);
+  wakeLock.Release();
   motorController.StopRinging();
   if (timeoutLine != nullptr) {
     lv_obj_del(timeoutLine);
@@ -173,7 +171,9 @@ bool Notifications::OnTouchEvent(Pinetime::Applications::TouchEvents event) {
         } else if (nextMessage.valid) {
           currentId = nextMessage.id;
         } else {
-          // don't update id, won't be found be refresh and try to load latest message or no message box
+          // don't update id, notification manager will try to fetch
+          // but not find it. Refresh will try to load latest message
+          // or dismiss to watchface
         }
         DismissToBlack();
         return true;
@@ -246,8 +246,8 @@ namespace {
 
 Notifications::NotificationItem::NotificationItem(Pinetime::Controllers::AlertNotificationService& alertNotificationService,
                                                   Pinetime::Controllers::MotorController& motorController)
-  : NotificationItem("Notification",
-                     "No notification to display",
+  : NotificationItem("Notifications",
+                     "No notifications to display",
                      0,
                      Controllers::NotificationManager::Categories::Unknown,
                      0,

src/displayapp/screens/Notifications.h

@@ -8,6 +8,7 @@
 #include "components/ble/NotificationManager.h"
 #include "components/motor/MotorController.h"
 #include "systemtask/SystemTask.h"
+#include "systemtask/WakeLock.h"
 
 namespace Pinetime {
   namespace Controllers {
@@ -73,7 +74,7 @@ namespace Pinetime {
         Pinetime::Controllers::NotificationManager& notificationManager;
         Pinetime::Controllers::AlertNotificationService& alertNotificationService;
         Pinetime::Controllers::MotorController& motorController;
-        System::SystemTask& systemTask;
+        System::WakeLock wakeLock;
         Modes mode = Modes::Normal;
         std::unique_ptr<NotificationItem> currentItem;
         Pinetime::Controllers::NotificationManager::Notification::Id currentId;

src/displayapp/screens/Paddle.h

@@ -57,6 +57,10 @@ namespace Pinetime {
       static Screens::Screen* Create(AppControllers& controllers) {
         return new Screens::Paddle(controllers.lvgl);
       };
+
+      static bool IsAvailable(Pinetime::Controllers::FS& /*filesystem*/) {
+        return true;
+      };
     };
   }
 }

src/displayapp/screens/Steps.h

@@ -51,6 +51,10 @@ namespace Pinetime {
       static Screens::Screen* Create(AppControllers& controllers) {
         return new Screens::Steps(controllers.motionController, controllers.settingsController);
       };
+
+      static bool IsAvailable(Pinetime::Controllers::FS& /*filesystem*/) {
+        return true;
+      };
     };
   }
 }

src/displayapp/screens/StopWatch.cpp

@@ -34,7 +34,7 @@ namespace {
   constexpr TickType_t blinkInterval = pdMS_TO_TICKS(1000);
 }
 
-StopWatch::StopWatch(System::SystemTask& systemTask) : systemTask {systemTask} {
+StopWatch::StopWatch(System::SystemTask& systemTask) : wakeLock(systemTask) {
   static constexpr uint8_t btnWidth = 115;
   static constexpr uint8_t btnHeight = 80;
   btnPlayPause = lv_btn_create(lv_scr_act(), nullptr);
@@ -79,7 +79,6 @@ StopWatch::StopWatch(System::SystemTask& systemTask) : systemTask {systemTask} {
 
 StopWatch::~StopWatch() {
   lv_task_del(taskRefresh);
-  systemTask.PushMessage(Pinetime::System::Messages::EnableSleeping);
   lv_obj_clean(lv_scr_act());
 }
 
@@ -135,7 +134,7 @@ void StopWatch::Start() {
   SetInterfaceRunning();
   startTime = xTaskGetTickCount();
   currentState = States::Running;
-  systemTask.PushMessage(Pinetime::System::Messages::DisableSleeping);
+  wakeLock.Lock();
 }
 
 void StopWatch::Pause() {
@@ -145,7 +144,7 @@ void StopWatch::Pause() {
   oldTimeElapsed = laps[lapsDone];
   blinkTime = xTaskGetTickCount() + blinkInterval;
   currentState = States::Halted;
-  systemTask.PushMessage(Pinetime::System::Messages::EnableSleeping);
+  wakeLock.Release();
 }
 
 void StopWatch::Refresh() {

src/displayapp/screens/StopWatch.h

@@ -7,6 +7,7 @@
 #include "portmacro_cmsis.h"
 
 #include "systemtask/SystemTask.h"
+#include "systemtask/WakeLock.h"
 #include "displayapp/apps/Apps.h"
 #include "displayapp/Controllers.h"
 #include "Symbols.h"
@@ -43,7 +44,7 @@ namespace Pinetime {
         void Start();
         void Pause();
 
-        Pinetime::System::SystemTask& systemTask;
+        Pinetime::System::WakeLock wakeLock;
         States currentState = States::Init;
         TickType_t startTime;
         TickType_t oldTimeElapsed = 0;
@@ -68,6 +69,10 @@ namespace Pinetime {
       static Screens::Screen* Create(AppControllers& controllers) {
         return new Screens::StopWatch(*controllers.systemTask);
       };
+
+      static bool IsAvailable(Pinetime::Controllers::FS& /*filesystem*/) {
+        return true;
+      };
     };
   }
 }

src/displayapp/screens/Symbols.h

@@ -8,6 +8,7 @@ namespace Pinetime {
         static constexpr const char* batteryHalf = "\xEF\x89\x82";
         static constexpr const char* heartBeat = "\xEF\x88\x9E";
         static constexpr const char* bluetooth = "\xEF\x8A\x94";
+        static constexpr const char* shieldAlt = "\xEF\x8F\xAD";
         static constexpr const char* plug = "\xEF\x87\xA6";
         static constexpr const char* shoe = "\xEF\x95\x8B";
         static constexpr const char* clock = "\xEF\x80\x97";
@@ -39,6 +40,8 @@ namespace Pinetime {
         static constexpr const char* eye = "\xEF\x81\xAE";
         static constexpr const char* home = "\xEF\x80\x95";
         static constexpr const char* sleep = "\xEE\xBD\x84";
+        static constexpr const char* calculator = "\xEF\x87\xAC";
+        static constexpr const char* backspace = "\xEF\x95\x9A";
 
         // fontawesome_weathericons.c
         // static constexpr const char* sun = "\xEF\x86\x85";

src/displayapp/screens/SystemInfo.cpp

@@ -40,8 +40,7 @@ SystemInfo::SystemInfo(Pinetime::Applications::DisplayApp* app,
                        Pinetime::Controllers::MotionController& motionController,
                        const Pinetime::Drivers::Cst816S& touchPanel,
                        const Pinetime::Drivers::SpiNorFlash& spiNorFlash)
-  : app {app},
-    dateTimeController {dateTimeController},
+  : dateTimeController {dateTimeController},
     batteryController {batteryController},
     brightnessController {brightnessController},
     bleController {bleController},
@@ -196,10 +195,10 @@ std::unique_ptr<Screen> SystemInfo::CreateScreen3() {
                         "#808080 SPI Flash# %02x-%02x-%02x\n"
                         "\n"
                         "#808080 Memory heap#\n"
-                        " #808080 Free# %d\n"
+                        " #808080 Free# %d/%d\n"
                         " #808080 Min free# %d\n"
                         " #808080 Alloc err# %d\n"
-                        " #808080 Ovrfl err# %d\n",
+                        " #808080 Ovrfl err# %d",
                         bleAddr[5],
                         bleAddr[4],
                         bleAddr[3],
@@ -210,6 +209,7 @@ std::unique_ptr<Screen> SystemInfo::CreateScreen3() {
                         spiFlashId.type,
                         spiFlashId.density,
                         xPortGetFreeHeapSize(),
+                        xPortGetHeapSize(),
                         xPortGetMinimumEverFreeHeapSize(),
                         mallocFailedCount,
                         stackOverflowCount);
@@ -241,7 +241,12 @@ std::unique_ptr<Screen> SystemInfo::CreateScreen4() {
   lv_table_set_col_width(infoTask, 3, 90);
 
   auto nb = uxTaskGetSystemState(tasksStatus, maxTaskCount, nullptr);
+// g++ emits a spurious warning (and thus error because we compile with -Werror)
+// due to the way std::sort is implemented
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Warray-bounds"
   std::sort(tasksStatus, tasksStatus + nb, sortById);
+#pragma GCC diagnostic pop
   for (uint8_t i = 0; i < nb && i < maxTaskCount; i++) {
     char buffer[11] = {0};
 

src/displayapp/screens/SystemInfo.h

@@ -35,7 +35,6 @@ namespace Pinetime {
         bool OnTouchEvent(TouchEvents event) override;
 
       private:
-        DisplayApp* app;
         Pinetime::Controllers::DateTime& dateTimeController;
         const Pinetime::Controllers::Battery& batteryController;
         Pinetime::Controllers::BrightnessController& brightnessController;

src/displayapp/screens/Tile.cpp

@@ -29,9 +29,13 @@ Tile::Tile(uint8_t screenID,
            Controllers::Settings& settingsController,
            const Controllers::Battery& batteryController,
            const Controllers::Ble& bleController,
+           const Controllers::AlarmController& alarmController,
            Controllers::DateTime& dateTimeController,
            std::array<Applications, 6>& applications)
-  : app {app}, dateTimeController {dateTimeController}, pageIndicator(screenID, numScreens), statusIcons(batteryController, bleController) {
+  : app {app},
+    dateTimeController {dateTimeController},
+    pageIndicator(screenID, numScreens),
+    statusIcons(batteryController, bleController, alarmController) {
 
   settingsController.SetAppMenu(screenID);
 
@@ -66,8 +70,7 @@ Tile::Tile(uint8_t screenID,
   lv_obj_align(btnm1, nullptr, LV_ALIGN_CENTER, 0, 10);
 
   lv_obj_set_style_local_radius(btnm1, LV_BTNMATRIX_PART_BTN, LV_STATE_DEFAULT, 20);
-  lv_obj_set_style_local_bg_opa(btnm1, LV_BTNMATRIX_PART_BTN, LV_STATE_DEFAULT, LV_OPA_50);
-  lv_obj_set_style_local_bg_color(btnm1, LV_BTNMATRIX_PART_BTN, LV_STATE_DEFAULT, LV_COLOR_AQUA);
+  lv_obj_set_style_local_bg_color(btnm1, LV_BTNMATRIX_PART_BTN, LV_STATE_DEFAULT, Colors::bgAlt);
   lv_obj_set_style_local_bg_opa(btnm1, LV_BTNMATRIX_PART_BTN, LV_STATE_DISABLED, LV_OPA_50);
   lv_obj_set_style_local_bg_color(btnm1, LV_BTNMATRIX_PART_BTN, LV_STATE_DISABLED, Colors::bgDark);
   lv_obj_set_style_local_pad_all(btnm1, LV_BTNMATRIX_PART_BG, LV_STATE_DEFAULT, 0);

src/displayapp/screens/Tile.h

@@ -28,6 +28,7 @@ namespace Pinetime {
                       Controllers::Settings& settingsController,
                       const Controllers::Battery& batteryController,
                       const Controllers::Ble& bleController,
+                      const Controllers::AlarmController& alarmController,
                       Controllers::DateTime& dateTimeController,
                       std::array<Applications, 6>& applications);
 

src/displayapp/screens/Timer.cpp

@@ -59,8 +59,8 @@ Timer::Timer(Controllers::Timer& timerController) : timer {timerController} {
   lv_obj_set_event_cb(btnPlayPause, btnEventHandler);
   lv_obj_set_size(btnPlayPause, LV_HOR_RES, 50);
 
-  txtPlayPause = lv_label_create(lv_scr_act(), nullptr);
-  lv_obj_align(txtPlayPause, btnPlayPause, LV_ALIGN_CENTER, 0, 0);
+  // Create the label as a child of the button so it stays centered by default
+  txtPlayPause = lv_label_create(btnPlayPause, nullptr);
 
   if (timer.IsRunning()) {
     SetTimerRunning();

src/displayapp/screens/Timer.h

@@ -1,7 +1,6 @@
 #pragma once
 
 #include "displayapp/screens/Screen.h"
-#include "components/datetime/DateTimeController.h"
 #include "systemtask/SystemTask.h"
 #include "displayapp/LittleVgl.h"
 #include "displayapp/widgets/Counter.h"
@@ -57,5 +56,9 @@ namespace Pinetime::Applications {
     static Screens::Screen* Create(AppControllers& controllers) {
       return new Screens::Timer(controllers.timer);
     };
+
+    static bool IsAvailable(Pinetime::Controllers::FS& /*filesystem*/) {
+      return true;
+    };
   };
 }

src/displayapp/screens/Twos.h

@@ -45,6 +45,10 @@ namespace Pinetime {
       static Screens::Screen* Create(AppControllers& /*controllers*/) {
         return new Screens::Twos();
       };
+
+      static bool IsAvailable(Pinetime::Controllers::FS& /*filesystem*/) {
+        return true;
+      };
     };
   }
 }

src/displayapp/screens/WatchFaceAnalog.cpp

@@ -1,5 +1,6 @@
 #include "displayapp/screens/WatchFaceAnalog.h"
 #include <cmath>
+#include <limits>
 #include <lvgl/lvgl.h>
 #include "displayapp/screens/BatteryIcon.h"
 #include "displayapp/screens/BleIcon.h"
@@ -15,8 +16,10 @@ namespace {
   constexpr int16_t MinuteLength = 90;
   constexpr int16_t SecondLength = 110;
 
+  // LVGL sin isn't constexpr (though it could be if it were C++) so fix size here
+  // All the types are hardcoded anyway and would need changing if the size changed
   // sin(90) = 1 so the value of _lv_trigo_sin(90) is the scaling factor
-  const auto LV_TRIG_SCALE = _lv_trigo_sin(90);
+  constexpr int16_t LV_TRIG_SCALE = std::numeric_limits<int16_t>::max(); // = _lv_trigo_sin(90)
 
   int16_t Cosine(int16_t angle) {
     return _lv_trigo_sin(angle + 90);

src/displayapp/screens/WatchFaceDigital.cpp

@@ -2,6 +2,7 @@
 
 #include <lvgl/lvgl.h>
 #include <cstdio>
+
 #include "displayapp/screens/NotificationIcon.h"
 #include "displayapp/screens/Symbols.h"
 #include "displayapp/screens/WeatherSymbols.h"
@@ -18,6 +19,7 @@ using namespace Pinetime::Applications::Screens;
 WatchFaceDigital::WatchFaceDigital(Controllers::DateTime& dateTimeController,
                                    const Controllers::Battery& batteryController,
                                    const Controllers::Ble& bleController,
+                                   const Controllers::AlarmController& alarmController,
                                    Controllers::NotificationManager& notificationManager,
                                    Controllers::Settings& settingsController,
                                    Controllers::HeartRateController& heartRateController,
@@ -30,7 +32,7 @@ WatchFaceDigital::WatchFaceDigital(Controllers::DateTime& dateTimeController,
     heartRateController {heartRateController},
     motionController {motionController},
     weatherService {weatherService},
-    statusIcons(batteryController, bleController) {
+    statusIcons(batteryController, bleController, alarmController) {
 
   statusIcons.Create();
 
@@ -174,13 +176,12 @@ void WatchFaceDigital::Refresh() {
   if (currentWeather.IsUpdated()) {
     auto optCurrentWeather = currentWeather.Get();
     if (optCurrentWeather) {
-      int16_t temp = optCurrentWeather->temperature;
+      int16_t temp = optCurrentWeather->temperature.Celsius();
       char tempUnit = 'C';
       if (settingsController.GetWeatherFormat() == Controllers::Settings::WeatherFormat::Imperial) {
-        temp = Controllers::SimpleWeatherService::CelsiusToFahrenheit(temp);
+        temp = optCurrentWeather->temperature.Fahrenheit();
         tempUnit = 'F';
       }
-      temp = temp / 100 + (temp % 100 >= 50 ? 1 : 0);
       lv_label_set_text_fmt(temperature, "%d°%c", temp, tempUnit);
       lv_label_set_text(weatherIcon, Symbols::GetSymbol(optCurrentWeather->iconId));
     } else {

src/displayapp/screens/WatchFaceDigital.h

@@ -17,6 +17,7 @@ namespace Pinetime {
     class Settings;
     class Battery;
     class Ble;
+    class AlarmController;
     class NotificationManager;
     class HeartRateController;
     class MotionController;
@@ -30,6 +31,7 @@ namespace Pinetime {
         WatchFaceDigital(Controllers::DateTime& dateTimeController,
                          const Controllers::Battery& batteryController,
                          const Controllers::Ble& bleController,
+                         const Controllers::AlarmController& alarmController,
                          Controllers::NotificationManager& notificationManager,
                          Controllers::Settings& settingsController,
                          Controllers::HeartRateController& heartRateController,
@@ -84,6 +86,7 @@ namespace Pinetime {
         return new Screens::WatchFaceDigital(controllers.dateTimeController,
                                              controllers.batteryController,
                                              controllers.bleController,
+                                             controllers.alarmController,
                                              controllers.notificationManager,
                                              controllers.settingsController,
                                              controllers.heartRateController,

src/displayapp/screens/WatchFaceInfineat.cpp

@@ -316,7 +316,7 @@ WatchFaceInfineat::~WatchFaceInfineat() {
 bool WatchFaceInfineat::OnTouchEvent(Pinetime::Applications::TouchEvents event) {
   if ((event == Pinetime::Applications::TouchEvents::LongTap) && lv_obj_get_hidden(btnSettings)) {
     lv_obj_set_hidden(btnSettings, false);
-    savedTick = lv_tick_get();
+    savedTick = xTaskGetTickCount();
     return true;
   }
   // Prevent screen from sleeping when double tapping with settings on
@@ -434,12 +434,15 @@ void WatchFaceInfineat::Refresh() {
 
   batteryPercentRemaining = batteryController.PercentRemaining();
   isCharging = batteryController.IsCharging();
-  if (batteryController.IsCharging()) { // Charging battery animation
-    chargingBatteryPercent += 1;
+  // Charging battery animation
+  if (batteryController.IsCharging() && (xTaskGetTickCount() - chargingAnimationTick > pdMS_TO_TICKS(150))) {
+    // Dividing 100 by the height gives the battery percentage required to shift the animation by 1 pixel
+    chargingBatteryPercent += 100 / lv_obj_get_height(logoPine);
     if (chargingBatteryPercent > 100) {
       chargingBatteryPercent = batteryPercentRemaining.Get();
     }
     SetBatteryLevel(chargingBatteryPercent);
+    chargingAnimationTick = xTaskGetTickCount();
   } else if (isCharging.IsUpdated() || batteryPercentRemaining.IsUpdated()) {
     chargingBatteryPercent = batteryPercentRemaining.Get();
     SetBatteryLevel(chargingBatteryPercent);
@@ -460,7 +463,7 @@ void WatchFaceInfineat::Refresh() {
   }
 
   if (!lv_obj_get_hidden(btnSettings)) {
-    if ((savedTick > 0) && (lv_tick_get() - savedTick > 3000)) {
+    if ((savedTick > 0) && (xTaskGetTickCount() - savedTick > pdMS_TO_TICKS(3000))) {
       lv_obj_set_hidden(btnSettings, true);
       savedTick = 0;
     }

src/displayapp/screens/WatchFaceInfineat.h

@@ -45,8 +45,9 @@ namespace Pinetime {
         static bool IsAvailable(Pinetime::Controllers::FS& filesystem);
 
       private:
-        uint32_t savedTick = 0;
         uint8_t chargingBatteryPercent = 101; // not a mistake ;)
+        TickType_t savedTick = 0;
+        TickType_t chargingAnimationTick = 0;
 
         Utility::DirtyValue<uint8_t> batteryPercentRemaining {};
         Utility::DirtyValue<bool> isCharging {};

src/displayapp/screens/WatchFacePineTimeStyle.cpp

@@ -22,7 +22,7 @@
 #include "displayapp/screens/WatchFacePineTimeStyle.h"
 #include <lvgl/lvgl.h>
 #include <cstdio>
-#include <displayapp/Colors.h>
+#include "displayapp/Colors.h"
 #include "displayapp/screens/BatteryIcon.h"
 #include "displayapp/screens/BleIcon.h"
 #include "displayapp/screens/NotificationIcon.h"
@@ -407,7 +407,7 @@ bool WatchFacePineTimeStyle::OnTouchEvent(Pinetime::Applications::TouchEvents ev
   if ((event == Pinetime::Applications::TouchEvents::LongTap) && lv_obj_get_hidden(btnClose)) {
     lv_obj_set_hidden(btnSetColor, false);
     lv_obj_set_hidden(btnSetOpts, false);
-    savedTick = lv_tick_get();
+    savedTick = xTaskGetTickCount();
     return true;
   }
   if ((event == Pinetime::Applications::TouchEvents::DoubleTap) && (lv_obj_get_hidden(btnClose) == false)) {
@@ -543,11 +543,10 @@ void WatchFacePineTimeStyle::Refresh() {
   if (currentWeather.IsUpdated()) {
     auto optCurrentWeather = currentWeather.Get();
     if (optCurrentWeather) {
-      int16_t temp = optCurrentWeather->temperature;
+      int16_t temp = optCurrentWeather->temperature.Celsius();
       if (settingsController.GetWeatherFormat() == Controllers::Settings::WeatherFormat::Imperial) {
-        temp = Controllers::SimpleWeatherService::CelsiusToFahrenheit(temp);
+        temp = optCurrentWeather->temperature.Fahrenheit();
       }
-      temp = temp / 100 + (temp % 100 >= 50 ? 1 : 0);
       lv_label_set_text_fmt(temperature, "%d°", temp);
       lv_label_set_text(weatherIcon, Symbols::GetSymbol(optCurrentWeather->iconId));
     } else {
@@ -559,7 +558,7 @@ void WatchFacePineTimeStyle::Refresh() {
   }
 
   if (!lv_obj_get_hidden(btnSetColor)) {
-    if ((savedTick > 0) && (lv_tick_get() - savedTick > 3000)) {
+    if ((savedTick > 0) && (xTaskGetTickCount() - savedTick > pdMS_TO_TICKS(3000))) {
       lv_obj_set_hidden(btnSetColor, true);
       lv_obj_set_hidden(btnSetOpts, true);
       savedTick = 0;

src/displayapp/screens/WatchFacePineTimeStyle.h

@@ -52,7 +52,7 @@ namespace Pinetime {
         Controllers::DateTime::Months currentMonth = Pinetime::Controllers::DateTime::Months::Unknown;
         Controllers::DateTime::Days currentDayOfWeek = Pinetime::Controllers::DateTime::Days::Unknown;
         uint8_t currentDay = 0;
-        uint32_t savedTick = 0;
+        TickType_t savedTick = 0;
 
         Utility::DirtyValue<uint8_t> batteryPercentRemaining {};
         Utility::DirtyValue<bool> isCharging {};

src/displayapp/screens/WatchFacePrideFlag.cpp

@@ -0,0 +1,337 @@
+#include "displayapp/screens/WatchFacePrideFlag.h"
+#include <lvgl/lvgl.h>
+#include "components/battery/BatteryController.h"
+#include "components/ble/BleController.h"
+#include "displayapp/screens/Symbols.h"
+
+using namespace Pinetime::Applications::Screens;
+
+namespace {
+  void EventHandler(lv_obj_t* obj, lv_event_t event) {
+    auto* screen = static_cast<WatchFacePrideFlag*>(obj->user_data);
+    screen->UpdateSelected(obj, event);
+  }
+
+  Pinetime::Controllers::Settings::PrideFlag GetNext(Pinetime::Controllers::Settings::PrideFlag prideFlag) {
+    const auto prideFlagAsInt = static_cast<uint8_t>(prideFlag);
+    Pinetime::Controllers::Settings::PrideFlag nextFlag;
+    if (prideFlagAsInt < 3) {
+      nextFlag = static_cast<Pinetime::Controllers::Settings::PrideFlag>(prideFlagAsInt + 1);
+    } else {
+      nextFlag = static_cast<Pinetime::Controllers::Settings::PrideFlag>(0);
+    }
+    return nextFlag;
+  }
+
+  Pinetime::Controllers::Settings::PrideFlag GetPrevious(Pinetime::Controllers::Settings::PrideFlag prideFlag) {
+    const auto prideFlagAsInt = static_cast<uint8_t>(prideFlag);
+    Pinetime::Controllers::Settings::PrideFlag prevFlag;
+    if (prideFlagAsInt > 0) {
+      prevFlag = static_cast<Pinetime::Controllers::Settings::PrideFlag>(prideFlagAsInt - 1);
+    } else {
+      prevFlag = static_cast<Pinetime::Controllers::Settings::PrideFlag>(3);
+    }
+    return prevFlag;
+  }
+
+  template <std::size_t N>
+  class PrideFlagData {
+  public:
+    constexpr PrideFlagData(const std::array<lv_color_t, N>& sectionColours,
+                            lv_color_t defaultTopLabelColour,
+                            lv_color_t labelTimeColour,
+                            lv_color_t defaultBottomLabelColour)
+      : sectionColours {sectionColours},
+        defaultTopLabelColour {defaultTopLabelColour},
+        labelTimeColour {labelTimeColour},
+        defaultBottomLabelColour {defaultBottomLabelColour} {
+      // Space between adjacent text values calculated according to the following equation
+      spacing = static_cast<uint8_t>(1.5f * static_cast<float>(N) + 40.5f);
+    }
+
+    std::array<lv_color_t, N> sectionColours;
+    lv_color_t defaultTopLabelColour;
+    lv_color_t labelTimeColour;
+    lv_color_t defaultBottomLabelColour;
+    uint8_t spacing;
+  };
+
+  constexpr lv_color_t lightBlue = LV_COLOR_MAKE(0x00, 0xbf, 0xf3);
+  constexpr lv_color_t lightPink = LV_COLOR_MAKE(0xf4, 0x9a, 0xc1);
+  constexpr lv_color_t hotPink = LV_COLOR_MAKE(0xd6, 0x02, 0x70);
+  constexpr lv_color_t grayPurple = LV_COLOR_MAKE(0x9b, 0x4f, 0x96);
+  constexpr lv_color_t darkBlue = LV_COLOR_MAKE(0x00, 0x38, 0xa8);
+  constexpr lv_color_t orange = LV_COLOR_MAKE(0xef, 0x76, 0x27);
+  constexpr lv_color_t lightOrange = LV_COLOR_MAKE(0xff, 0x9b, 0x55);
+  constexpr lv_color_t lightPurple = LV_COLOR_MAKE(0xd4, 0x61, 0xa6);
+  constexpr lv_color_t darkPurple = LV_COLOR_MAKE(0xb5, 0x56, 0x90);
+  constexpr lv_color_t magenta = LV_COLOR_MAKE(0xa5, 0x00, 0x62);
+  constexpr lv_color_t darkGreen = LV_COLOR_MAKE(0x07, 0x8d, 0x70);
+  constexpr lv_color_t cyan = LV_COLOR_MAKE(0x26, 0xce, 0xaa);
+  constexpr lv_color_t lightGreen = LV_COLOR_MAKE(0x98, 0xe8, 0xc1);
+  constexpr lv_color_t indigo = LV_COLOR_MAKE(0x50, 0x49, 0xcc);
+  constexpr lv_color_t steelBlue = LV_COLOR_MAKE(0x3d, 0x1a, 0x78);
+  constexpr std::array<lv_color_t, 7> gayColours {darkGreen, cyan, lightGreen, LV_COLOR_WHITE, lightBlue, indigo, steelBlue};
+  constexpr std::array<lv_color_t, 5> transColours {lightBlue, lightPink, LV_COLOR_WHITE, lightPink, lightBlue};
+  constexpr std::array<lv_color_t, 5> biColours {hotPink, hotPink, grayPurple, darkBlue, darkBlue};
+  constexpr std::array<lv_color_t, 7> lesbianColours {LV_COLOR_RED, orange, lightOrange, LV_COLOR_WHITE, lightPurple, darkPurple, magenta};
+  constexpr PrideFlagData gayFlagData(gayColours, LV_COLOR_BLACK, LV_COLOR_BLACK, LV_COLOR_WHITE);
+  constexpr PrideFlagData transFlagData(transColours, LV_COLOR_WHITE, LV_COLOR_BLACK, LV_COLOR_WHITE);
+  constexpr PrideFlagData biFlagData(biColours, LV_COLOR_BLACK, LV_COLOR_WHITE, LV_COLOR_BLACK);
+  constexpr PrideFlagData lesbianFlagData(lesbianColours, LV_COLOR_WHITE, LV_COLOR_BLACK, LV_COLOR_WHITE);
+}
+
+WatchFacePrideFlag::WatchFacePrideFlag(Controllers::DateTime& dateTimeController,
+                                       const Controllers::Battery& batteryController,
+                                       const Controllers::Ble& bleController,
+                                       Controllers::NotificationManager& notificationManager,
+                                       Controllers::Settings& settingsController,
+                                       Controllers::MotionController& motionController)
+  : currentDateTime {{}},
+    dateTimeController {dateTimeController},
+    batteryController {batteryController},
+    bleController {bleController},
+    notificationManager {notificationManager},
+    settingsController {settingsController},
+    motionController {motionController} {
+
+  bluetoothStatus = lv_label_create(lv_scr_act(), nullptr);
+  lv_label_set_text_static(bluetoothStatus, "");
+  lv_obj_align(bluetoothStatus, nullptr, LV_ALIGN_IN_TOP_RIGHT, -16, 0);
+
+  batteryValue = lv_label_create(lv_scr_act(), nullptr);
+  lv_label_set_recolor(batteryValue, true);
+  lv_label_set_align(batteryValue, LV_LABEL_ALIGN_CENTER);
+  lv_obj_set_auto_realign(batteryValue, true);
+
+  notificationText = lv_label_create(lv_scr_act(), nullptr);
+  lv_obj_align(notificationText, nullptr, LV_ALIGN_IN_LEFT_MID, 0, -110);
+  lv_obj_set_style_local_text_color(notificationText, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, LV_COLOR_BLACK);
+
+  btnClose = lv_btn_create(lv_scr_act(), nullptr);
+  btnClose->user_data = this;
+  lv_obj_set_size(btnClose, 60, 60);
+  lv_obj_align(btnClose, lv_scr_act(), LV_ALIGN_CENTER, 0, -80);
+  lv_obj_set_style_local_bg_opa(btnClose, LV_BTN_PART_MAIN, LV_STATE_DEFAULT, LV_OPA_50);
+  lv_obj_t* lblClose = lv_label_create(btnClose, nullptr);
+  lv_label_set_text_static(lblClose, "X");
+  lv_obj_set_event_cb(btnClose, EventHandler);
+  lv_obj_set_hidden(btnClose, true);
+
+  btnNextFlag = lv_btn_create(lv_scr_act(), nullptr);
+  btnNextFlag->user_data = this;
+  lv_obj_set_size(btnNextFlag, 60, 60);
+  lv_obj_align(btnNextFlag, lv_scr_act(), LV_ALIGN_IN_RIGHT_MID, -15, 80);
+  lv_obj_set_style_local_bg_opa(btnNextFlag, LV_BTN_PART_MAIN, LV_STATE_DEFAULT, LV_OPA_50);
+  lv_obj_t* lblNextBG = lv_label_create(btnNextFlag, nullptr);
+  lv_label_set_text_static(lblNextBG, ">");
+  lv_obj_set_event_cb(btnNextFlag, EventHandler);
+  lv_obj_set_hidden(btnNextFlag, true);
+
+  btnPrevFlag = lv_btn_create(lv_scr_act(), nullptr);
+  btnPrevFlag->user_data = this;
+  lv_obj_set_size(btnPrevFlag, 60, 60);
+  lv_obj_align(btnPrevFlag, lv_scr_act(), LV_ALIGN_IN_LEFT_MID, 15, 80);
+  lv_obj_set_style_local_bg_opa(btnPrevFlag, LV_BTN_PART_MAIN, LV_STATE_DEFAULT, LV_OPA_50);
+  lv_obj_t* lblPrevFlag = lv_label_create(btnPrevFlag, nullptr);
+  lv_label_set_text_static(lblPrevFlag, "<");
+  lv_obj_set_event_cb(btnPrevFlag, EventHandler);
+  lv_obj_set_hidden(btnPrevFlag, true);
+
+  labelDate = lv_label_create(lv_scr_act(), nullptr);
+  lv_label_set_recolor(labelDate, true);
+  lv_label_set_align(labelDate, LV_LABEL_ALIGN_CENTER);
+  lv_obj_set_auto_realign(labelDate, true);
+
+  labelTime = lv_label_create(lv_scr_act(), nullptr);
+  lv_label_set_recolor(labelTime, true);
+  lv_obj_align(labelTime, lv_scr_act(), LV_ALIGN_CENTER, 0, -1);
+  lv_label_set_align(labelTime, LV_LABEL_ALIGN_CENTER);
+  lv_obj_set_style_local_text_font(labelTime, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, &jetbrains_mono_42);
+  lv_obj_set_auto_realign(labelTime, true);
+
+  labelDay = lv_label_create(lv_scr_act(), nullptr);
+  lv_label_set_recolor(labelDay, true);
+  lv_label_set_align(labelDay, LV_LABEL_ALIGN_CENTER);
+  lv_obj_set_auto_realign(labelDay, true);
+
+  stepValue = lv_label_create(lv_scr_act(), nullptr);
+  lv_label_set_recolor(stepValue, true);
+  lv_obj_align(stepValue, lv_scr_act(), LV_ALIGN_CENTER, 0, 96);
+  lv_label_set_align(stepValue, LV_LABEL_ALIGN_CENTER);
+  lv_obj_set_auto_realign(stepValue, true);
+
+  UpdateScreen(settingsController.GetPrideFlag());
+
+  taskRefresh = lv_task_create(RefreshTaskCallback, LV_DISP_DEF_REFR_PERIOD, LV_TASK_PRIO_MID, this);
+  Refresh();
+}
+
+WatchFacePrideFlag::~WatchFacePrideFlag() {
+  lv_task_del(taskRefresh);
+  lv_obj_clean(lv_scr_act());
+}
+
+bool WatchFacePrideFlag::OnTouchEvent(Pinetime::Applications::TouchEvents event) {
+  if ((event == Pinetime::Applications::TouchEvents::LongTap) && lv_obj_get_hidden(btnClose)) {
+    lv_obj_set_hidden(btnPrevFlag, false);
+    lv_obj_set_hidden(btnNextFlag, false);
+    lv_obj_set_hidden(btnClose, false);
+    savedTick = xTaskGetTickCount();
+    return true;
+  }
+  if ((event == Pinetime::Applications::TouchEvents::DoubleTap) && !lv_obj_get_hidden(btnClose)) {
+    return true;
+  }
+  return false;
+}
+
+void WatchFacePrideFlag::CloseMenu() {
+  settingsController.SaveSettings();
+  lv_obj_set_hidden(btnClose, true);
+  lv_obj_set_hidden(btnNextFlag, true);
+  lv_obj_set_hidden(btnPrevFlag, true);
+}
+
+void WatchFacePrideFlag::Refresh() {
+  powerPresent = batteryController.IsPowerPresent();
+  bleState = bleController.IsConnected();
+  batteryPercentRemaining = batteryController.PercentRemaining();
+  if (batteryPercentRemaining.IsUpdated() || powerPresent.IsUpdated() || themeChanged) {
+    lv_label_set_text_fmt(batteryValue, "%d%%", batteryPercentRemaining.Get());
+    if (batteryController.IsPowerPresent()) {
+      lv_label_ins_text(batteryValue, LV_LABEL_POS_LAST, " Charging");
+    }
+  }
+  if (bleState.IsUpdated()) {
+    if (bleState.Get()) {
+      lv_label_set_text_static(bluetoothStatus, Symbols::bluetooth);
+    } else {
+      lv_label_set_text_static(bluetoothStatus, "");
+    }
+  }
+
+  notificationState = notificationManager.AreNewNotificationsAvailable();
+  if (notificationState.IsUpdated()) {
+    if (notificationState.Get()) {
+      lv_label_set_text_static(notificationText, "You have\nmail!");
+    } else {
+      lv_label_set_text_static(notificationText, "");
+    }
+  }
+
+  currentDateTime = std::chrono::time_point_cast<std::chrono::seconds>(dateTimeController.CurrentDateTime());
+  if (currentDateTime.IsUpdated() || themeChanged) {
+    uint8_t hour = dateTimeController.Hours();
+    const uint8_t minute = dateTimeController.Minutes();
+    const uint8_t second = dateTimeController.Seconds();
+
+    if (settingsController.GetClockType() == Controllers::Settings::ClockType::H12) {
+      if (hour == 0) {
+        ampmChar = "AM";
+        hour = 12;
+      } else if (hour == 12) {
+        ampmChar = "PM";
+      } else if (hour > 12) {
+        hour = hour - 12;
+        ampmChar = "PM";
+      }
+    }
+
+    lv_label_set_text_fmt(labelTime, "%02d:%02d:%02d", hour, minute, second);
+
+    currentDate = std::chrono::time_point_cast<std::chrono::days>(currentDateTime.Get());
+    if (currentDate.IsUpdated() || ampmChar.IsUpdated() || themeChanged) {
+      const uint16_t year = dateTimeController.Year();
+      const Controllers::DateTime::Months month = dateTimeController.Month();
+      const uint8_t day = dateTimeController.Day();
+      const Controllers::DateTime::Days dayOfWeek = dateTimeController.DayOfWeek();
+      lv_label_set_text_fmt(labelDate, "%02d-%02d-%04d", day, static_cast<uint8_t>(month), year);
+      if (settingsController.GetClockType() == Controllers::Settings::ClockType::H12) {
+        lv_label_set_text_fmt(labelDay, "%s %s", dateTimeController.DayOfWeekToStringLow(dayOfWeek), ampmChar);
+      } else {
+        lv_label_set_text_fmt(labelDay, "%s", dateTimeController.DayOfWeekToStringLow(dayOfWeek));
+      }
+    }
+  }
+
+  stepCount = motionController.NbSteps();
+  if (stepCount.IsUpdated() || themeChanged) {
+    lv_label_set_text_fmt(stepValue, "%lu steps", stepCount.Get());
+  }
+  if (themeChanged) {
+    themeChanged = false;
+  }
+}
+
+void WatchFacePrideFlag::UpdateSelected(lv_obj_t* object, lv_event_t event) {
+  if (event == LV_EVENT_CLICKED) {
+    auto valueFlag = settingsController.GetPrideFlag();
+    bool flagChanged = false;
+    if (object == btnClose) {
+      CloseMenu();
+    }
+    if (object == btnNextFlag) {
+      valueFlag = GetNext(valueFlag);
+      flagChanged = true;
+    }
+    if (object == btnPrevFlag) {
+      valueFlag = GetPrevious(valueFlag);
+      flagChanged = true;
+    }
+    settingsController.SetPrideFlag(valueFlag);
+    if (flagChanged) {
+      UpdateScreen(valueFlag);
+    }
+  }
+}
+
+bool WatchFacePrideFlag::OnButtonPushed() {
+  if (!lv_obj_get_hidden(btnClose)) {
+    CloseMenu();
+    return true;
+  }
+  return false;
+}
+
+void WatchFacePrideFlag::UpdateScreen(const Pinetime::Controllers::Settings::PrideFlag prideFlag) {
+  auto UseFlagData = [this]<size_t N>(PrideFlagData<N> flagData) {
+    backgroundSections.reserve(N);
+    for (size_t i = 0; i < N; i++) {
+      backgroundSections.push_back(lv_obj_create(lv_scr_act(), nullptr));
+      lv_obj_set_style_local_bg_color(backgroundSections[i], LV_OBJ_PART_MAIN, LV_STATE_DEFAULT, flagData.sectionColours[i]);
+      lv_obj_set_size(backgroundSections[i], LV_HOR_RES, (LV_VER_RES / N) + 1);
+      lv_obj_set_pos(backgroundSections[i], 0, i * LV_VER_RES / N);
+      lv_obj_set_style_local_radius(backgroundSections[i], LV_OBJ_PART_MAIN, LV_STATE_DEFAULT, 0);
+      lv_obj_move_background(backgroundSections[i]);
+    }
+    lv_obj_set_style_local_text_color(labelTime, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, flagData.labelTimeColour);
+    lv_obj_set_style_local_text_color(batteryValue, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, flagData.defaultTopLabelColour);
+    lv_obj_set_style_local_text_color(labelDate, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, flagData.defaultTopLabelColour);
+    lv_obj_set_style_local_text_color(labelDay, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, flagData.defaultBottomLabelColour);
+    lv_obj_set_style_local_text_color(stepValue, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, flagData.defaultBottomLabelColour);
+    lv_obj_align(batteryValue, lv_scr_act(), LV_ALIGN_CENTER, 0, -2 * flagData.spacing);
+    lv_obj_align(labelDate, lv_scr_act(), LV_ALIGN_CENTER, 0, -1 * flagData.spacing);
+    lv_obj_align(labelDay, lv_scr_act(), LV_ALIGN_CENTER, 0, flagData.spacing);
+    lv_obj_align(stepValue, lv_scr_act(), LV_ALIGN_CENTER, 0, 2 * flagData.spacing);
+  };
+  themeChanged = true;
+  for (lv_obj_t* backgroundSection : backgroundSections) {
+    lv_obj_del(backgroundSection);
+  }
+  backgroundSections.clear();
+  switch (prideFlag) {
+    case Pinetime::Controllers::Settings::PrideFlag::Gay:
+      UseFlagData(gayFlagData);
+      break;
+    case Pinetime::Controllers::Settings::PrideFlag::Trans:
+      UseFlagData(transFlagData);
+      break;
+    case Pinetime::Controllers::Settings::PrideFlag::Bi:
+      UseFlagData(biFlagData);
+      break;
+    case Pinetime::Controllers::Settings::PrideFlag::Lesbian:
+      UseFlagData(lesbianFlagData);
+      break;
+  }
+}

src/displayapp/screens/WatchFacePrideFlag.h

@@ -0,0 +1,102 @@
+#pragma once
+
+#include <lvgl/src/lv_core/lv_obj.h>
+#include <chrono>
+#include <vector>
+#include <cstdint>
+#include <array>
+#include <FreeRTOS.h>
+#include "displayapp/screens/Screen.h"
+#include "utility/DirtyValue.h"
+#include "components/settings/Settings.h"
+#include "components/battery/BatteryController.h"
+
+namespace Pinetime {
+  namespace Controllers {
+    class Settings;
+    class Battery;
+    class Ble;
+    class NotificationManager;
+    class MotionController;
+  }
+
+  namespace Applications {
+    namespace Screens {
+
+      class WatchFacePrideFlag : public Screen {
+      public:
+        WatchFacePrideFlag(Controllers::DateTime& dateTimeController,
+                           const Controllers::Battery& batteryController,
+                           const Controllers::Ble& bleController,
+                           Controllers::NotificationManager& notificationManager,
+                           Controllers::Settings& settingsController,
+                           Controllers::MotionController& motionController);
+        ~WatchFacePrideFlag() override;
+
+        bool OnTouchEvent(TouchEvents event) override;
+        bool OnButtonPushed() override;
+
+        void Refresh() override;
+
+        void UpdateSelected(lv_obj_t* object, lv_event_t event);
+
+      private:
+        void UpdateScreen(Pinetime::Controllers::Settings::PrideFlag);
+
+        Utility::DirtyValue<uint8_t> batteryPercentRemaining;
+        Utility::DirtyValue<bool> powerPresent;
+        Utility::DirtyValue<bool> bleState;
+        Utility::DirtyValue<std::chrono::time_point<std::chrono::system_clock, std::chrono::seconds>> currentDateTime;
+        Utility::DirtyValue<uint32_t> stepCount;
+        Utility::DirtyValue<bool> notificationState;
+        Utility::DirtyValue<std::chrono::time_point<std::chrono::system_clock, std::chrono::days>> currentDate;
+        // Must be wrapped in a dirty value, since it is displayed in the day but is updated twice a day
+        Utility::DirtyValue<const char*> ampmChar {"AM"};
+
+        TickType_t savedTick = 0;
+
+        std::vector<lv_obj_t*> backgroundSections;
+        bool themeChanged = false;
+        lv_obj_t* bluetoothStatus;
+        lv_obj_t* labelTime;
+        lv_obj_t* labelDate;
+        lv_obj_t* labelDay;
+        lv_obj_t* batteryValue;
+        lv_obj_t* stepValue;
+        lv_obj_t* notificationText;
+        lv_obj_t* btnClose;
+        lv_obj_t* btnNextFlag;
+        lv_obj_t* btnPrevFlag;
+
+        Controllers::DateTime& dateTimeController;
+        const Controllers::Battery& batteryController;
+        const Controllers::Ble& bleController;
+        Controllers::NotificationManager& notificationManager;
+        Controllers::Settings& settingsController;
+        Controllers::MotionController& motionController;
+
+        lv_task_t* taskRefresh;
+        void CloseMenu();
+      };
+    }
+
+    template <>
+    struct WatchFaceTraits<WatchFace::PrideFlag> {
+      static constexpr WatchFace watchFace = WatchFace::PrideFlag;
+      static constexpr const char* name = "Pride Flag";
+
+      static Screens::Screen* Create(AppControllers& controllers) {
+        return new Screens::WatchFacePrideFlag(controllers.dateTimeController,
+                                               controllers.batteryController,
+                                               controllers.bleController,
+                                               controllers.notificationManager,
+                                               controllers.settingsController,
+                                               controllers.motionController);
+      };
+
+      static bool IsAvailable(Pinetime::Controllers::FS& /*filesystem*/) {
+        return true;
+      }
+    };
+  }
+}

src/displayapp/screens/Weather.cpp

@@ -1,5 +1,7 @@
 #include "displayapp/screens/Weather.h"
+
 #include <lvgl/lvgl.h>
+
 #include "components/ble/SimpleWeatherService.h"
 #include "components/datetime/DateTimeController.h"
 #include "components/settings/Settings.h"
@@ -10,31 +12,27 @@
 using namespace Pinetime::Applications::Screens;
 
 namespace {
-  lv_color_t TemperatureColor(int16_t temperature) {
-    if (temperature <= 0) { // freezing
+  lv_color_t TemperatureColor(Pinetime::Controllers::SimpleWeatherService::Temperature temp) {
+    if (temp.Celsius() <= 0) { // freezing
       return Colors::blue;
-    } else if (temperature <= 400) { // ice
+    } else if (temp.Celsius() <= 4) { // ice
       return LV_COLOR_CYAN;
-    } else if (temperature >= 2700) { // hot
+    } else if (temp.Celsius() >= 27) { // hot
       return Colors::deepOrange;
     }
     return Colors::orange; // normal
   }
 
-  uint8_t TemperatureStyle(int16_t temperature) {
-    if (temperature <= 0) { // freezing
+  uint8_t TemperatureStyle(Pinetime::Controllers::SimpleWeatherService::Temperature temp) {
+    if (temp.Celsius() <= 0) { // freezing
       return LV_TABLE_PART_CELL3;
-    } else if (temperature <= 400) { // ice
+    } else if (temp.Celsius() <= 4) { // ice
       return LV_TABLE_PART_CELL4;
-    } else if (temperature >= 2700) { // hot
+    } else if (temp.Celsius() >= 27) { // hot
       return LV_TABLE_PART_CELL6;
     }
     return LV_TABLE_PART_CELL5; // normal
   }
-
-  int16_t RoundTemperature(int16_t temp) {
-    return temp = temp / 100 + (temp % 100 >= 50 ? 1 : 0);
-  }
 }
 
 Weather::Weather(Controllers::Settings& settingsController, Controllers::SimpleWeatherService& weatherService)
@@ -120,22 +118,25 @@ void Weather::Refresh() {
   if (currentWeather.IsUpdated()) {
     auto optCurrentWeather = currentWeather.Get();
     if (optCurrentWeather) {
-      int16_t temp = optCurrentWeather->temperature;
-      int16_t minTemp = optCurrentWeather->minTemperature;
-      int16_t maxTemp = optCurrentWeather->maxTemperature;
-      lv_obj_set_style_local_text_color(temperature, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, TemperatureColor(temp));
+      int16_t temp = optCurrentWeather->temperature.Celsius();
+      int16_t minTemp = optCurrentWeather->minTemperature.Celsius();
+      int16_t maxTemp = optCurrentWeather->maxTemperature.Celsius();
       char tempUnit = 'C';
       if (settingsController.GetWeatherFormat() == Controllers::Settings::WeatherFormat::Imperial) {
-        temp = Controllers::SimpleWeatherService::CelsiusToFahrenheit(temp);
-        minTemp = Controllers::SimpleWeatherService::CelsiusToFahrenheit(minTemp);
-        maxTemp = Controllers::SimpleWeatherService::CelsiusToFahrenheit(maxTemp);
+        temp = optCurrentWeather->temperature.Fahrenheit();
+        minTemp = optCurrentWeather->minTemperature.Fahrenheit();
+        maxTemp = optCurrentWeather->maxTemperature.Fahrenheit();
         tempUnit = 'F';
       }
+      lv_obj_set_style_local_text_color(temperature,
+                                        LV_LABEL_PART_MAIN,
+                                        LV_STATE_DEFAULT,
+                                        TemperatureColor(optCurrentWeather->temperature));
       lv_label_set_text(icon, Symbols::GetSymbol(optCurrentWeather->iconId));
       lv_label_set_text(condition, Symbols::GetCondition(optCurrentWeather->iconId));
-      lv_label_set_text_fmt(temperature, "%d°%c", RoundTemperature(temp), tempUnit);
-      lv_label_set_text_fmt(minTemperature, "%d°", RoundTemperature(minTemp));
-      lv_label_set_text_fmt(maxTemperature, "%d°", RoundTemperature(maxTemp));
+      lv_label_set_text_fmt(temperature, "%d°%c", temp, tempUnit);
+      lv_label_set_text_fmt(minTemperature, "%d°", minTemp);
+      lv_label_set_text_fmt(maxTemperature, "%d°", maxTemp);
     } else {
       lv_label_set_text(icon, "");
       lv_label_set_text(condition, "");
@@ -152,24 +153,22 @@ void Weather::Refresh() {
     if (optCurrentForecast) {
       std::tm localTime = *std::localtime(reinterpret_cast<const time_t*>(&optCurrentForecast->timestamp));
 
-      for (int i = 0; i < Controllers::SimpleWeatherService::MaxNbForecastDays; i++) {
-        int16_t maxTemp = optCurrentForecast->days[i].maxTemperature;
-        int16_t minTemp = optCurrentForecast->days[i].minTemperature;
-        lv_table_set_cell_type(forecast, 2, i, TemperatureStyle(maxTemp));
-        lv_table_set_cell_type(forecast, 3, i, TemperatureStyle(minTemp));
+      for (int i = 0; i < optCurrentForecast->nbDays; i++) {
+        int16_t maxTemp = optCurrentForecast->days[i]->maxTemperature.Celsius();
+        int16_t minTemp = optCurrentForecast->days[i]->minTemperature.Celsius();
         if (settingsController.GetWeatherFormat() == Controllers::Settings::WeatherFormat::Imperial) {
-          maxTemp = Controllers::SimpleWeatherService::CelsiusToFahrenheit(maxTemp);
-          minTemp = Controllers::SimpleWeatherService::CelsiusToFahrenheit(minTemp);
+          maxTemp = optCurrentForecast->days[i]->maxTemperature.Fahrenheit();
+          minTemp = optCurrentForecast->days[i]->minTemperature.Fahrenheit();
         }
+        lv_table_set_cell_type(forecast, 2, i, TemperatureStyle(optCurrentForecast->days[i]->maxTemperature));
+        lv_table_set_cell_type(forecast, 3, i, TemperatureStyle(optCurrentForecast->days[i]->minTemperature));
         uint8_t wday = localTime.tm_wday + i + 1;
         if (wday > 7) {
           wday -= 7;
         }
-        maxTemp = RoundTemperature(maxTemp);
-        minTemp = RoundTemperature(minTemp);
         const char* dayOfWeek = Controllers::DateTime::DayOfWeekShortToStringLow(static_cast<Controllers::DateTime::Days>(wday));
         lv_table_set_cell_value(forecast, 0, i, dayOfWeek);
-        lv_table_set_cell_value(forecast, 1, i, Symbols::GetSymbol(optCurrentForecast->days[i].iconId));
+        lv_table_set_cell_value(forecast, 1, i, Symbols::GetSymbol(optCurrentForecast->days[i]->iconId));
         // Pad cells based on the largest number of digits on each column
         char maxPadding[3] = "  ";
         char minPadding[3] = "  ";

src/displayapp/screens/Weather.h

@@ -51,6 +51,10 @@ namespace Pinetime {
       static Screens::Screen* Create(AppControllers& controllers) {
         return new Screens::Weather(controllers.settingsController, *controllers.weatherController);
       };
+
+      static bool IsAvailable(Pinetime::Controllers::FS& /*filesystem*/) {
+        return true;
+      };
     };
   }
 }

src/displayapp/screens/settings/QuickSettings.cpp

@@ -33,13 +33,14 @@ QuickSettings::QuickSettings(Pinetime::Applications::DisplayApp* app,
                              Controllers::BrightnessController& brightness,
                              Controllers::MotorController& motorController,
                              Pinetime::Controllers::Settings& settingsController,
-                             const Controllers::Ble& bleController)
+                             const Controllers::Ble& bleController,
+                             const Controllers::AlarmController& alarmController)
   : app {app},
     dateTimeController {dateTimeController},
     brightness {brightness},
     motorController {motorController},
     settingsController {settingsController},
-    statusIcons(batteryController, bleController) {
+    statusIcons(batteryController, bleController, alarmController) {
 
   statusIcons.Create();
 

src/displayapp/screens/settings/QuickSettings.h

@@ -23,7 +23,8 @@ namespace Pinetime {
                       Controllers::BrightnessController& brightness,
                       Controllers::MotorController& motorController,
                       Pinetime::Controllers::Settings& settingsController,
-                      const Controllers::Ble& bleController);
+                      const Controllers::Ble& bleController,
+                      const Controllers::AlarmController& alarmController);
 
         ~QuickSettings() override;
 

src/displayapp/screens/settings/SettingDisplay.cpp

@@ -24,8 +24,7 @@ namespace {
 
 constexpr std::array<uint16_t, 6> SettingDisplay::options;
 
-SettingDisplay::SettingDisplay(Pinetime::Applications::DisplayApp* app, Pinetime::Controllers::Settings& settingsController)
-  : app {app}, settingsController {settingsController} {
+SettingDisplay::SettingDisplay(Pinetime::Controllers::Settings& settingsController) : settingsController {settingsController} {
 
   lv_obj_t* container1 = lv_cont_create(lv_scr_act(), nullptr);