Changed double click button action to music app

Signed-off-by: tofasthacker <tofasthacker@noreply.localhost>

README.md

@@ -1,88 +1,30 @@
-# [InfiniTime](https://github.com/InfiniTimeOrg/InfiniTime)
+# TODO
+## Completed
+- [x] Make $s in terminal watch face green
+- [x] Swipe left to access music control
+- [x] Flashlight starts on
+- [x] Calculator
 
-![InfiniTime logo](doc/logo/infinitime-logo-small.jpg "InfiniTime Logo")
+## Pending merge
 
-Fast open-source firmware for the [PineTime smartwatch](https://www.pine64.org/pinetime/) with many features, written in modern C++.
+## In progress
+### Elijah
+- [ ] Countdown timer presistant buzz
 
-## New to InfiniTime?
+### Josh
+- [ ] Seconds on digital watchface
 
-- [Getting started with InfiniTime](doc/gettingStarted/gettingStarted-1.0.md)
+### Moses
-- [Updating the software](doc/gettingStarted/updating-software.md)
+- [ ] Redo music control gestures
-- [About the firmware and bootloader](doc/gettingStarted/about-software.md)
+	- [ ] Swipe up toggles control mode and swipe down exits
-- [PineTimeStyle Watch face](https://wiki.pine64.org/wiki/PineTimeStyle)
+	- [ ] Swipe left/right goes to watchface/another app
-  - [Weather integration](https://wiki.pine64.org/wiki/Infinitime-Weather)
 	
-### Companion apps
+## Medium priority
+- [ ] Temp sensor w/ arduino
+- [ ] Homeassistant control
+- [ ] Periodic heart rate measurement
+- [ ] Exponent button on calculator
 
-- [Gadgetbridge](https://gadgetbridge.org/) (Android)
+## Lower priority
-- [AmazFish](https://openrepos.net/content/piggz/amazfish/) (SailfishOS)
+- [ ] Rearrange quick acces and apps
-- [Siglo](https://github.com/alexr4535/siglo) (Linux)
+- [ ] Maybe some prank watchfaces
-- [InfiniLink](https://github.com/InfiniTimeOrg/InfiniLink) (iOS) **[Looking for a new maintainer]**
-- [ITD](https://gitea.elara.ws/Elara6331/itd) (Linux)
-- [WatchMate](https://github.com/azymohliad/watchmate) (Linux)
-
-***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/).*
-
-## Development
-
-- [InfiniTime Vision](doc/InfiniTimeVision.md)
-- [Rough structure of the code](doc/code/Intro.md)
-- [How to implement an application](doc/code/Apps.md)
-- [Generate the fonts and symbols](src/displayapp/fonts/README.md)
-- [Tips on designing an app UI](doc/ui_guidelines.md)
-- [Bootloader, OTA and DFU](bootloader/README.md)
-- [External resources](doc/ExternalResources.md)
-
-### Contributing
-
-- [How to contribute?](CONTRIBUTING.md)
-- [Coding conventions](doc/coding-convention.md)
-
-### Build, flash and debug
-
-- [InfiniTime simulator](https://github.com/InfiniTimeOrg/InfiniSim)
-- [Build the project](doc/buildAndProgram.md)
-- [Build the project with Docker](doc/buildWithDocker.md)
-- [Build the project with VSCode](doc/buildWithVScode.md)
-- [Flash the firmware using OpenOCD and STLinkV2](doc/openOCD.md)
-- [Flash the firmware using SWD interface](doc/SWD.md)
-- [Flash the firmware using JLink](doc/jlink.md)
-- [Flash the firmware using GDB](doc/gdb.md)
-- [Stub using NRF52-DK](doc/PinetimeStubWithNrf52DK.md)
-
-### API
-
-- [BLE implementation and API](doc/ble.md)
-
-### Architecture and technical topics
-
-- [Memory analysis](doc/MemoryAnalysis.md)
-
-### Project management
-
-- [Maintainer's guide](doc/maintainer-guide.md)
-- [Versioning](doc/versioning.md)
-- [Project branches](doc/branches.md)
-- [Files included in the release notes](doc/filesInReleaseNotes.md)
-- [Files needed by the factory](doc/files-needed-by-factory.md)
-
-## Licenses
-
-This project is released under the GNU General Public License version 3 or, at your option, any later version.
-
-It integrates the following projects:
-
-- RTOS : **[FreeRTOS](https://freertos.org)** under the MIT license
-- UI : **[LittleVGL/LVGL](https://lvgl.io/)** under the MIT license
-- BLE stack : **[NimBLE](https://github.com/apache/mynewt-nimble)** under the Apache 2.0 license
-- Font : **[Jetbrains Mono](https://www.jetbrains.com/fr-fr/lp/mono/)** under the Apache 2.0 license
-
-## Credits
-
-I’m not working alone on this project. First, many people create PR for this project. Then, there is the whole #pinetime community : a lot of people all around the world who are hacking, searching, experimenting and programming the Pinetime. We exchange our ideas, experiments and code in the chat rooms and forums.
-
-Here are some people I would like to highlight:
-
-- [Atc1441](https://github.com/atc1441/) : He works on an Arduino based firmware for the Pinetime and many other smartwatches based on similar hardware. He was of great help when I was implementing support for the BMA421 motion sensor and I²C driver.
-- [Koen](https://github.com/bosmoment) : He’s working on a firmware based on RiotOS. He integrated similar libs as me : NimBLE, LittleVGL,… His help was invaluable too!
-- [Lup Yuen Lee](https://github.com/lupyuen) : He is everywhere: he works on a Rust firmware, builds a MCUBoot based bootloader for the Pinetime, designs a Flutter based companion app for smartphones and writes a lot of articles about the Pinetime!

README_orig.md

@@ -0,0 +1,88 @@
+# [InfiniTime](https://github.com/InfiniTimeOrg/InfiniTime)
+
+![InfiniTime logo](doc/logo/infinitime-logo-small.jpg "InfiniTime Logo")
+
+Fast open-source firmware for the [PineTime smartwatch](https://www.pine64.org/pinetime/) with many features, written in modern C++.
+
+## New to InfiniTime?
+
+- [Getting started with InfiniTime](doc/gettingStarted/gettingStarted-1.0.md)
+- [Updating the software](doc/gettingStarted/updating-software.md)
+- [About the firmware and bootloader](doc/gettingStarted/about-software.md)
+- [PineTimeStyle Watch face](https://wiki.pine64.org/wiki/PineTimeStyle)
+  - [Weather integration](https://wiki.pine64.org/wiki/Infinitime-Weather)
+
+### Companion apps
+
+- [Gadgetbridge](https://gadgetbridge.org/) (Android)
+- [AmazFish](https://openrepos.net/content/piggz/amazfish/) (SailfishOS)
+- [Siglo](https://github.com/alexr4535/siglo) (Linux)
+- [InfiniLink](https://github.com/InfiniTimeOrg/InfiniLink) (iOS) **[Looking for a new maintainer]**
+- [ITD](https://gitea.elara.ws/Elara6331/itd) (Linux)
+- [WatchMate](https://github.com/azymohliad/watchmate) (Linux)
+
+***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/).*
+
+## Development
+
+- [InfiniTime Vision](doc/InfiniTimeVision.md)
+- [Rough structure of the code](doc/code/Intro.md)
+- [How to implement an application](doc/code/Apps.md)
+- [Generate the fonts and symbols](src/displayapp/fonts/README.md)
+- [Tips on designing an app UI](doc/ui_guidelines.md)
+- [Bootloader, OTA and DFU](bootloader/README.md)
+- [External resources](doc/ExternalResources.md)
+
+### Contributing
+
+- [How to contribute?](CONTRIBUTING.md)
+- [Coding conventions](doc/coding-convention.md)
+
+### Build, flash and debug
+
+- [InfiniTime simulator](https://github.com/InfiniTimeOrg/InfiniSim)
+- [Build the project](doc/buildAndProgram.md)
+- [Build the project with Docker](doc/buildWithDocker.md)
+- [Build the project with VSCode](doc/buildWithVScode.md)
+- [Flash the firmware using OpenOCD and STLinkV2](doc/openOCD.md)
+- [Flash the firmware using SWD interface](doc/SWD.md)
+- [Flash the firmware using JLink](doc/jlink.md)
+- [Flash the firmware using GDB](doc/gdb.md)
+- [Stub using NRF52-DK](doc/PinetimeStubWithNrf52DK.md)
+
+### API
+
+- [BLE implementation and API](doc/ble.md)
+
+### Architecture and technical topics
+
+- [Memory analysis](doc/MemoryAnalysis.md)
+
+### Project management
+
+- [Maintainer's guide](doc/maintainer-guide.md)
+- [Versioning](doc/versioning.md)
+- [Project branches](doc/branches.md)
+- [Files included in the release notes](doc/filesInReleaseNotes.md)
+- [Files needed by the factory](doc/files-needed-by-factory.md)
+
+## Licenses
+
+This project is released under the GNU General Public License version 3 or, at your option, any later version.
+
+It integrates the following projects:
+
+- RTOS : **[FreeRTOS](https://freertos.org)** under the MIT license
+- UI : **[LittleVGL/LVGL](https://lvgl.io/)** under the MIT license
+- BLE stack : **[NimBLE](https://github.com/apache/mynewt-nimble)** under the Apache 2.0 license
+- Font : **[Jetbrains Mono](https://www.jetbrains.com/fr-fr/lp/mono/)** under the Apache 2.0 license
+
+## Credits
+
+I’m not working alone on this project. First, many people create PR for this project. Then, there is the whole #pinetime community : a lot of people all around the world who are hacking, searching, experimenting and programming the Pinetime. We exchange our ideas, experiments and code in the chat rooms and forums.
+
+Here are some people I would like to highlight:
+
+- [Atc1441](https://github.com/atc1441/) : He works on an Arduino based firmware for the Pinetime and many other smartwatches based on similar hardware. He was of great help when I was implementing support for the BMA421 motion sensor and I²C driver.
+- [Koen](https://github.com/bosmoment) : He’s working on a firmware based on RiotOS. He integrated similar libs as me : NimBLE, LittleVGL,… His help was invaluable too!
+- [Lup Yuen Lee](https://github.com/lupyuen) : He is everywhere: he works on a Rust firmware, builds a MCUBoot based bootloader for the Pinetime, designs a Flutter based companion app for smartphones and writes a lot of articles about the Pinetime!

doc/buildWithDocker.md

@@ -33,7 +33,7 @@ For cloning the repo, see [these instructions](../doc/buildAndProgram.md#clone-t
 
 ```bash
 cd <project_root> # e.g. cd ./work/Pinetime
-docker run --rm -it -v ${PWD}:/sources --user $(id -u):$(id -g) infinitime-build
+docker run --rm -it -v ${PWD}:/sources --user $(id -u):$(id -g) infinitime/infinitime-build
 ```
 
 By default, the container runs as `root`, which is not convenient as all the files generated by the build will also belong to `root`.
@@ -45,7 +45,7 @@ This means calling the script explicitly as it will override the `CMD`.
 Here's an example for `pinetime-app`:
 
 ```bash
-docker run --rm -it -v ${PWD}:/sources --user $(id -u):$(id -g) infinitime-build /opt/build.sh pinetime-app
+docker run --rm -it -v ${PWD}:/sources --user $(id -u):$(id -g) infinitime/infinitime-build /opt/build.sh pinetime-app
 ```
 
 ## Using the image from Docker Hub

enviroment_setup.md

@@ -0,0 +1,94 @@
+## Clone repositories
+1. Clone InfiniTime: 
+```bash
+git clone https://github.com/InfiniTimeOrg/InfiniTime.git
+cd InfiniTime
+git submodule update --init
+```
+
+2. Clone InfiniSim:
+```bash
+cd .. #Ignore this line if you already cd'd into the diretory you want it cloned into
+git clone --recursive https://github.com/InfiniTimeOrg/InfiniSim.git
+```
+
+## Install dependencies
+### For building InfiniTime
+1. Install Docker
+2. Pull docker container (optional, container will be pulled when running the docker container if not pulled now). 
+```bash
+sudo docker pull infinitime/infinitime-build
+```
+
+### For building InfiniSim
+This was the most difficult part for me to get right since the steps on the github page are not entirely complete for my setup. If you encounter errors while building, it's probably because one of the dependencies are missing or have the wrong version installed. If you do have an error while building, check out the issues on github and see if you can find some help there: https://github.com/InfiniTimeOrg/InfiniSim/issues
+1. The apt install part. This is almost exactly the same as what is on the github page except for npm. When I added npm in to here, I got an older version that didn't work. We'll install the correct version in step 2.
+```bash
+sudo apt install -y cmake libsdl2-dev g++ libpng-dev
+```
+
+2. Install the correct node version. (At least v14.0.0 is required). Commands from https://github.com/nodesource/distributions First, choose the node version by running one of these lines:
+```bash
+NODE_MAJOR=16
+NODE_MAJOR=18
+NODE_MAJOR=20
+```
+I'm not sure which is the best to use, I went with 16 since that is the closest to the version required by InfiniSim, but I doubt it makes much of a difference. Once you've done that, then install it with these commands:
+```bash
+sudo apt-get update
+sudo apt-get install -y ca-certificates curl gnupg
+sudo mkdir -p /etc/apt/keyrings
+curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key | sudo gpg --dearmor -o /etc/apt/keyrings/nodesource.gpg
+
+NODE_MAJOR=20
+echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_$NODE_MAJOR.x nodistro main" | sudo tee /etc/apt/sources.list.d/nodesource.list
+
+sudo apt-get update
+sudo apt-get install nodejs -y
+```
+
+3. Install npm packages
+```bash
+npm install lv_font_conv@1.5.2 -g
+npm install ts-node@10.9.1 @swc/core@1.3.82 lv_img_conv@0.3.0 -g
+```
+
+
+## Build InfiniSim
+### Building with stock InfiniTime
+Now to see if we did everything the way our computer wants it. First cd into the directory where InfinSim was cloned (`cd InfiniSim` if you are still in the directory you started in). Now you should be able to build InfiniSim with the InfiniTime version that was included with InfiniSim:
+```bash
+cmake -S . -B build
+cmake --build build -j4
+```
+
+If that didn't produce any error, now run it!
+```bash
+./build/infinisim
+```
+
+### Building with your own version of InfiniTime
+To test your own modifications of InfiniTime:
+```bash
+cmake -S . -B build -DInfiniTime_DIR=../InfiniTime
+cmake --build build -j4
+```
+Assuming that the git clone command was run in the same directory for both InfiniSim and InfiniTime. If not, replace `../InfiniTime` with the path to the directory where InfiniTime was cloned to.
+And now run it if there were no errors!
+```bash
+./build/infinisim
+```
+
+## Build InfiniTime
+Now is the fun part, building your own version of InfiniTime and flashing it to your watch!
+First, cd into the directory into which InfiniTime cloned (`cd ~/InfiniTime` if you cloned from your home directory). Now run the docker container (for more info on this command, see https://github.com/InfiniTimeOrg/InfiniTime/blob/main/doc/buildWithDocker.md):
+```bash
+docker run --rm -it -v ${PWD}:/sources --user $(id -u):$(id -g) infinitime/infinitime-build
+```
+
+If that doesn't have any errors, it will save the files to build/output/. The file you will want to flash to your watch is `pinetime-mcuboot-app-dfu-x.x.x.zip`. I found a pretty nice program called WatchMate that you can use to flash it from linux, but I think you can also use Gadgetbridge to flash the file. In WatchMate, just scroll down to the "Firmware Version" dropdown and click on "Upload from file" > 
+"Firmware" and select the zip file mentioned above. Once that's done, you may also want to send it the `infinitime-resources-x.x.x.zip` if some features are greyed out on the watch (for me it was a couple watch faces and the navigation app that were greyed out). In WatchMate, you'll want to use the "Resources" option instead of the "Firmware" option to upload this file.
+
+## Celebrate
+There you go, you've just flashed your own custom os to your watch! If you got all this far without running into any error, you have something to celebrate about as it took me a couple of days to get to this point. If you did have some errors and figured them out, then great, you've got it all figured out now!
+One final thing, I would recommend making use of git commits and branches so that you can revert if you totally mess something up and don't have to clone the entire repository and dependencies again like I had to do several times before I decided to start doing that.

src/CMakeLists.txt

@@ -393,6 +393,7 @@ list(APPEND SOURCE_FILES
         displayapp/screens/ApplicationList.cpp
         displayapp/screens/Notifications.cpp
         displayapp/screens/Twos.cpp
+        displayapp/screens/Calculator.cpp
         displayapp/screens/HeartRate.cpp
         displayapp/screens/Motion.cpp
         displayapp/screens/FlashLight.cpp

src/displayapp/Apps.h

@@ -37,7 +37,8 @@ namespace Pinetime {
       SettingChimes,
       SettingShakeThreshold,
       SettingBluetooth,
-      Error
+      Error,
+      Calculator
     };
   }
 }

src/displayapp/DisplayApp.cpp

@@ -31,6 +31,9 @@
 #include "displayapp/screens/Error.h"
 #include "displayapp/screens/Weather.h"
 
+// My New Apps
+#include "displayapp/screens/Calculator.h"
+
 #include "drivers/Cst816s.h"
 #include "drivers/St7789.h"
 #include "drivers/Watchdog.h"
@@ -301,6 +304,9 @@ void DisplayApp::Refresh() {
               case TouchEvents::SwipeRight:
                 LoadNewScreen(Apps::QuickSettings, DisplayApp::FullRefreshDirections::RightAnim);
                 break;
+              case TouchEvents::SwipeLeft:
+                LoadNewScreen(Apps::Music, DisplayApp::FullRefreshDirections::LeftAnim);
+                break;
               case TouchEvents::DoubleTap:
                 PushMessageToSystemTask(System::Messages::GoToSleep);
                 break;
@@ -341,8 +347,8 @@ void DisplayApp::Refresh() {
         LoadNewScreen(Apps::SysInfo, DisplayApp::FullRefreshDirections::Up);
         break;
       case Messages::ButtonDoubleClicked:
-        if (currentApp != Apps::Notifications && currentApp != Apps::NotificationsPreview) {
+        if (currentApp != Apps::Music) {
-          LoadNewScreen(Apps::Notifications, DisplayApp::FullRefreshDirections::Down);
+          LoadNewScreen(Apps::Music, DisplayApp::FullRefreshDirections::LeftAnim);
         }
         break;
 
@@ -548,6 +554,10 @@ void DisplayApp::LoadScreen(Apps app, DisplayApp::FullRefreshDirections directio
     case Apps::Steps:
       currentScreen = std::make_unique<Screens::Steps>(motionController, settingsController);
       break;
+    // My Apps
+    case Apps::Calculator:
+      currentScreen = std::make_unique<Screens::Calculator>();
+      break;
   }
   currentApp = app;
 }

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"
+            "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, 0xf1ec, 0xf55a"
          }
       ],
       "bpp": 1,

src/displayapp/screens/ApplicationList.h

@@ -55,7 +55,8 @@ namespace Pinetime {
           {"2", Apps::Twos, true},
           {Symbols::drum, Apps::Metronome, true},
           {Symbols::map, Apps::Navigation, Applications::Screens::Navigation::IsAvailable(filesystem)},
-          {Symbols::none, Apps::None, false},
+          {Symbols::calculator, Apps::Calculator, true},
+          //{Symbols::none, Apps::None, false},
 
           // {"M", Apps::Motion},
         }};

src/displayapp/screens/Calculator.cpp

@@ -0,0 +1,397 @@
+#include <cmath>
+#include <cinttypes>
+#include <libraries/log/nrf_log.h>
+#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());
+}
+
+static const char* 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, 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 ((equalSignPressed && (*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
+      auto digit = (*buttonText) - '0';
+      auto 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;
+      }
+
+      NRF_LOG_INFO(". offset: %" PRId64, offset);
+      NRF_LOG_INFO(". value: %" PRId64, value);
+      NRF_LOG_INFO(". result: %" PRId64, result);
+    } break;
+
+    // unary minus
+    case '(':
+      value = -value;
+
+      NRF_LOG_INFO(". offset: %" PRId64, offset);
+      NRF_LOG_INFO(". value: %" PRId64, value);
+      NRF_LOG_INFO(". result: %" PRId64, result);
+
+      break;
+
+    case '.':
+      if (offset == FIXED_POINT_OFFSET) {
+        offset /= 10;
+      }
+
+      NRF_LOG_INFO(". offset: %" PRId64, offset);
+      NRF_LOG_INFO(". value: %" PRId64, value);
+      NRF_LOG_INFO(". result: %" PRId64, result);
+      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;
+      }
+
+      NRF_LOG_INFO(". offset: %" PRId64, offset);
+      NRF_LOG_INFO(". value: %" PRId64, value);
+      NRF_LOG_INFO(". result: %" PRId64, result);
+
+      operation = ' ';
+      UpdateOperation();
+      break;
+
+    case '=':
+      equalSignPressed = 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();
+      }
+
+      NRF_LOG_INFO(". offset: %" PRId64, offset);
+      NRF_LOG_INFO(". value: %" PRId64, value);
+      NRF_LOG_INFO(". result: %" PRId64, result);
+
+      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 = ' ';
+  equalSignPressed = 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 min_width = N_DECIMALS;
+
+  // cut "0"-digits on the right
+  while ((remainder > 0) && (remainder % 10 == 0)) {
+    remainder /= 10;
+    min_width--;
+  }
+
+  if ((integer == 0) && negative) {
+    lv_label_set_text_fmt(resultLabel, "-0.%0*" PRId64, min_width, remainder);
+  } else {
+    lv_label_set_text_fmt(resultLabel, "%" PRId64 ".%0*" PRId64, integer, min_width, 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 min_width = 0;
+      int64_t tmp_offset = offset;
+
+      // TODO there has to be a simpler way to do this
+      if (tmp_offset == 0) {
+        tmp_offset = 1;
+        min_width = 1;
+      }
+      while (tmp_offset < FIXED_POINT_OFFSET) {
+        tmp_offset *= 10;
+        min_width++;
+      }
+      min_width--;
+
+      for (uint8_t i = min_width; i < N_DECIMALS; i++) {
+        printRemainder /= 10;
+      }
+
+      if ((integer == 0) && negative) {
+        lv_label_set_text_fmt(valueLabel, "-0.%0*" PRId64, min_width, 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, min_width, 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 +1,68 @@
+#pragma once
+
+#include "Screen.h"
+
+namespace {
+  int64_t constexpr 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
+        static constexpr uint8_t N_DECIMALS = 4;
+        // this is the constant default offset
+        static constexpr int64_t FIXED_POINT_OFFSET = powi(10, N_DECIMALS);
+        // this is the current offset, may wary 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 = 15;
+        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 equalSignPressed = false;
+
+        enum Error {
+          TooLarge,
+          ZeroDivision,
+          None,
+        };
+
+        Error error = Error::None;
+      };
+    }
+  }
+}

src/displayapp/screens/FlashLight.cpp

@@ -47,6 +47,8 @@ FlashLight::FlashLight(System::SystemTask& systemTask, Controllers::BrightnessCo
   lv_obj_set_event_cb(backgroundAction, EventHandler);
 
   systemTask.PushMessage(Pinetime::System::Messages::DisableSleeping);
+  
+  Toggle();
 }
 
 FlashLight::~FlashLight() {

src/displayapp/screens/Symbols.h

@@ -37,6 +37,10 @@ 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/WatchFaceTerminal.cpp

@@ -10,8 +10,11 @@
 #include "components/motion/MotionController.h"
 #include "components/settings/Settings.h"
 
+
+
 using namespace Pinetime::Applications::Screens;
 
+
 WatchFaceTerminal::WatchFaceTerminal(Controllers::DateTime& dateTimeController,
                                      const Controllers::Battery& batteryController,
                                      const Controllers::Ble& bleController,
@@ -43,12 +46,14 @@ WatchFaceTerminal::WatchFaceTerminal(Controllers::DateTime& dateTimeController,
   lv_obj_align(label_date, lv_scr_act(), LV_ALIGN_IN_LEFT_MID, 0, -40);
 
   label_prompt_1 = lv_label_create(lv_scr_act(), nullptr);
+  lv_label_set_recolor(label_prompt_1, true);
   lv_obj_align(label_prompt_1, lv_scr_act(), LV_ALIGN_IN_LEFT_MID, 0, -80);
-  lv_label_set_text_static(label_prompt_1, "user@watch:~ $ now");
+  lv_label_set_text_static(label_prompt_1, "user@watch:~ #00ff00 $# now");
 
   label_prompt_2 = lv_label_create(lv_scr_act(), nullptr);
+  lv_label_set_recolor(label_prompt_2, true);
   lv_obj_align(label_prompt_2, lv_scr_act(), LV_ALIGN_IN_LEFT_MID, 0, 60);
-  lv_label_set_text_static(label_prompt_2, "user@watch:~ $");
+  lv_label_set_text_static(label_prompt_2, "user@watch:~ #00ff00 $#");
 
   label_time = lv_label_create(lv_scr_act(), nullptr);
   lv_label_set_recolor(label_time, true);
@@ -144,6 +149,8 @@ void WatchFaceTerminal::Refresh() {
     }
   }
   
+  
+
   stepCount = motionController.NbSteps();
   if (stepCount.IsUpdated()) {
     lv_label_set_text_fmt(stepValue, "[STEP]#ee3377 %lu steps#", stepCount.Get());