Calculator App

doc/Calculator.md

@@ -0,0 +1,9 @@
+# Calculator Manual
+This is a simple Calculator with support for the four basic arithmetic operations, parenthesis and exponents.
+Here is what you need to know to make full use of it:
+- Swipe left to access parenthesis and exponents:
+   ![](./ui/calc2.jpg)
+- A long tap on the screen will reset the text field to `0`.
+- If the entered term is invalid, the watch will vibrate.
+- results are rounded to 4 digits after the decimal point
+- **TIP:** you can use `^(1/2)` to calculate square roots

src/CMakeLists.txt

@@ -430,6 +430,7 @@ list(APPEND SOURCE_FILES
         displayapp/screens/List.cpp
         displayapp/screens/BatteryInfo.cpp
         displayapp/screens/Steps.cpp
+        displayapp/screens/Calculator.cpp
         displayapp/screens/Timer.cpp
         displayapp/screens/PassKey.cpp
         displayapp/screens/Error.cpp
@@ -643,6 +644,7 @@ set(INCLUDE_FILES
         displayapp/screens/HeartRate.h
         displayapp/screens/Metronome.h
         displayapp/screens/Motion.h
+        displayapp/screens/Calculator.h
         displayapp/screens/Timer.h
         displayapp/screens/Alarm.h
         displayapp/Colors.h

src/displayapp/Apps.h

@@ -39,6 +39,7 @@ namespace Pinetime {
       SettingChimes,
       SettingShakeThreshold,
       SettingAirplaneMode,
+      Calculator,
       Error
     };
   }

src/displayapp/DisplayApp.cpp

@@ -26,6 +26,7 @@
 #include "displayapp/screens/SystemInfo.h"
 #include "displayapp/screens/Tile.h"
 #include "displayapp/screens/Twos.h"
+#include "displayapp/screens/Calculator.h"
 #include "displayapp/screens/FlashLight.h"
 #include "displayapp/screens/BatteryInfo.h"
 #include "displayapp/screens/Steps.h"
@@ -482,6 +483,9 @@ void DisplayApp::LoadApp(Apps app, DisplayApp::FullRefreshDirections direction)
     case Apps::Steps:
       currentScreen = std::make_unique<Screens::Steps>(this, motionController, settingsController);
       break;
+    case Apps::Calculator:
+      currentScreen = std::make_unique<Screens::Calculator>(this, motorController);
+      break;
   }
   currentApp = app;
 }

src/displayapp/fonts/README.md

@@ -13,7 +13,7 @@
 * Do not enable font compression and horizontal subpixel hinting
 * Load the file `JetBrainsMono-Bold.tff` (use the file in this repo to ensure the version matches) and specify the following range : `0x20-0x7f, 0x410-0x44f`
 * Add a 2nd font, load the file `FontAwesome5-Solid+Brands+Regular.woff` and specify the following
-  range : `0xf293, 0xf294, 0xf244, 0xf240, 0xf242, 0xf243, 0xf241, 0xf54b, 0xf21e, 0xf1e6, 0xf54b, 0xf017, 0xf129, 0xf03a, 0xf185, 0xf560, 0xf001, 0xf3fd, 0xf069, 0xf1fc, 0xf45d, 0xf59f, 0xf5a0, 0xf029, 0xf027, 0xf028, 0xf6a9, 0xf04b, 0xf04c, 0xf048, 0xf051, 0xf095, 0xf3dd, 0xf04d, 0xf2f2, 0xf024, 0xf252, 0xf569, 0xf201, 0xf06e, 0xf015, 0xf072`
+  range : `0xf293, 0xf294, 0xf244, 0xf240, 0xf242, 0xf243, 0xf241, 0xf54b, 0xf21e, 0xf1e6, 0xf54b, 0xf017, 0xf129, 0xf03a, 0xf185, 0xf560, 0xf001, 0xf3fd, 0xf069, 0xf1fc, 0xf45d, 0xf59f, 0xf5a0, 0xf029, 0xf027, 0xf028, 0xf6a9, 0xf04b, 0xf04c, 0xf048, 0xf051, 0xf095, 0xf3dd, 0xf04d, 0xf2f2, 0xf024, 0xf252, 0xf569, 0xf201, 0xf06e, 0xf015, 0xf072, 0xf1ec`
 * Click on Convert, and download the file `jetbrains_mono_bold_20.c` and copy it in `src/DisplayApp/Fonts`
 * Add the font .c file path to src/CMakeLists.txt
 * Add an LV_FONT_DECLARE line in src/libs/lv_conf.h

src/displayapp/fonts/jetbrains_mono_bold_20.c

@@ -880,6 +880,14 @@ static LV_ATTRIBUTE_LARGE_CONST const uint8_t glyph_bitmap[] = {
     0x83, 0xfe, 0x3, 0xf8, 0x1, 0xc0, 0x3, 0x80,
     0x7, 0x0, 0xe, 0x0,
 
+    /* U+F1EC "" */
+    0x7f, 0xff, 0xbf, 0xff, 0xfe, 0x0, 0x1f, 0x80,
+    0x7, 0xe0, 0x1, 0xf8, 0x0, 0x7e, 0x0, 0x1f,
+    0xff, 0xff, 0xff, 0xff, 0xf9, 0xce, 0x7e, 0x73,
+    0x9f, 0x9c, 0xe7, 0xff, 0xf9, 0xff, 0xfe, 0x7e,
+    0x73, 0x9f, 0x9c, 0xe7, 0xe7, 0x39, 0xff, 0xff,
+    0xf7, 0xff, 0xf8,
+
     /* U+F1FC "" */
     0x0, 0x0, 0xf0, 0x0, 0x1f, 0x0, 0x3, 0xf0,
     0x0, 0x7e, 0x0, 0xf, 0xe0, 0x3, 0xfc, 0x0,
@@ -1235,27 +1243,28 @@ static const lv_font_fmt_txt_glyph_dsc_t glyph_dsc[] = {
     {.bitmap_index = 3262, .adv_w = 120, .box_w = 8, .box_h = 19, .ofs_x = 0, .ofs_y = -2},
     {.bitmap_index = 3281, .adv_w = 320, .box_w = 20, .box_h = 20, .ofs_x = 0, .ofs_y = -3},
     {.bitmap_index = 3331, .adv_w = 240, .box_w = 15, .box_h = 19, .ofs_x = 0, .ofs_y = -2},
-    {.bitmap_index = 3367, .adv_w = 320, .box_w = 20, .box_h = 19, .ofs_x = 0, .ofs_y = -2},
-    {.bitmap_index = 3415, .adv_w = 320, .box_w = 21, .box_h = 15, .ofs_x = 0, .ofs_y = 0},
-    {.bitmap_index = 3455, .adv_w = 320, .box_w = 20, .box_h = 17, .ofs_x = 0, .ofs_y = -1},
-    {.bitmap_index = 3498, .adv_w = 400, .box_w = 25, .box_h = 12, .ofs_x = 0, .ofs_y = 1},
-    {.bitmap_index = 3536, .adv_w = 400, .box_w = 25, .box_h = 12, .ofs_x = 0, .ofs_y = 1},
-    {.bitmap_index = 3574, .adv_w = 400, .box_w = 25, .box_h = 12, .ofs_x = 0, .ofs_y = 1},
-    {.bitmap_index = 3612, .adv_w = 400, .box_w = 25, .box_h = 12, .ofs_x = 0, .ofs_y = 1},
-    {.bitmap_index = 3650, .adv_w = 400, .box_w = 25, .box_h = 12, .ofs_x = 0, .ofs_y = 1},
-    {.bitmap_index = 3688, .adv_w = 240, .box_w = 15, .box_h = 19, .ofs_x = 0, .ofs_y = -2},
-    {.bitmap_index = 3724, .adv_w = 280, .box_w = 15, .box_h = 20, .ofs_x = 1, .ofs_y = -3},
-    {.bitmap_index = 3762, .adv_w = 200, .box_w = 11, .box_h = 21, .ofs_x = 0, .ofs_y = -3},
-    {.bitmap_index = 3791, .adv_w = 280, .box_w = 16, .box_h = 19, .ofs_x = 1, .ofs_y = -2},
-    {.bitmap_index = 3829, .adv_w = 400, .box_w = 25, .box_h = 21, .ofs_x = 0, .ofs_y = -3},
-    {.bitmap_index = 3895, .adv_w = 360, .box_w = 23, .box_h = 17, .ofs_x = 0, .ofs_y = -1},
-    {.bitmap_index = 3944, .adv_w = 320, .box_w = 20, .box_h = 20, .ofs_x = 0, .ofs_y = -2},
-    {.bitmap_index = 3994, .adv_w = 400, .box_w = 25, .box_h = 19, .ofs_x = 0, .ofs_y = -2},
-    {.bitmap_index = 4054, .adv_w = 320, .box_w = 20, .box_h = 21, .ofs_x = 0, .ofs_y = -3},
-    {.bitmap_index = 4107, .adv_w = 360, .box_w = 23, .box_h = 21, .ofs_x = 0, .ofs_y = -3},
-    {.bitmap_index = 4168, .adv_w = 360, .box_w = 22, .box_h = 20, .ofs_x = 0, .ofs_y = -2},
-    {.bitmap_index = 4223, .adv_w = 360, .box_w = 22, .box_h = 19, .ofs_x = 0, .ofs_y = -2},
-    {.bitmap_index = 4276, .adv_w = 320, .box_w = 20, .box_h = 15, .ofs_x = 0, .ofs_y = 0}
+    {.bitmap_index = 3367, .adv_w = 280, .box_w = 18, .box_h = 19, .ofs_x = 0, .ofs_y = -2},
+    {.bitmap_index = 3410, .adv_w = 320, .box_w = 20, .box_h = 19, .ofs_x = 0, .ofs_y = -2},
+    {.bitmap_index = 3458, .adv_w = 320, .box_w = 21, .box_h = 15, .ofs_x = 0, .ofs_y = 0},
+    {.bitmap_index = 3498, .adv_w = 320, .box_w = 20, .box_h = 17, .ofs_x = 0, .ofs_y = -1},
+    {.bitmap_index = 3541, .adv_w = 400, .box_w = 25, .box_h = 12, .ofs_x = 0, .ofs_y = 1},
+    {.bitmap_index = 3579, .adv_w = 400, .box_w = 25, .box_h = 12, .ofs_x = 0, .ofs_y = 1},
+    {.bitmap_index = 3617, .adv_w = 400, .box_w = 25, .box_h = 12, .ofs_x = 0, .ofs_y = 1},
+    {.bitmap_index = 3655, .adv_w = 400, .box_w = 25, .box_h = 12, .ofs_x = 0, .ofs_y = 1},
+    {.bitmap_index = 3693, .adv_w = 400, .box_w = 25, .box_h = 12, .ofs_x = 0, .ofs_y = 1},
+    {.bitmap_index = 3731, .adv_w = 240, .box_w = 15, .box_h = 19, .ofs_x = 0, .ofs_y = -2},
+    {.bitmap_index = 3767, .adv_w = 280, .box_w = 15, .box_h = 20, .ofs_x = 1, .ofs_y = -3},
+    {.bitmap_index = 3805, .adv_w = 200, .box_w = 11, .box_h = 21, .ofs_x = 0, .ofs_y = -3},
+    {.bitmap_index = 3834, .adv_w = 280, .box_w = 16, .box_h = 19, .ofs_x = 1, .ofs_y = -2},
+    {.bitmap_index = 3872, .adv_w = 400, .box_w = 25, .box_h = 21, .ofs_x = 0, .ofs_y = -3},
+    {.bitmap_index = 3938, .adv_w = 360, .box_w = 23, .box_h = 17, .ofs_x = 0, .ofs_y = -1},
+    {.bitmap_index = 3987, .adv_w = 320, .box_w = 20, .box_h = 20, .ofs_x = 0, .ofs_y = -2},
+    {.bitmap_index = 4037, .adv_w = 400, .box_w = 25, .box_h = 19, .ofs_x = 0, .ofs_y = -2},
+    {.bitmap_index = 4097, .adv_w = 320, .box_w = 20, .box_h = 21, .ofs_x = 0, .ofs_y = -3},
+    {.bitmap_index = 4150, .adv_w = 360, .box_w = 23, .box_h = 21, .ofs_x = 0, .ofs_y = -3},
+    {.bitmap_index = 4211, .adv_w = 360, .box_w = 22, .box_h = 20, .ofs_x = 0, .ofs_y = -2},
+    {.bitmap_index = 4266, .adv_w = 360, .box_w = 22, .box_h = 19, .ofs_x = 0, .ofs_y = -2},
+    {.bitmap_index = 4319, .adv_w = 320, .box_w = 20, .box_h = 15, .ofs_x = 0, .ofs_y = 0}
 };
 
 /*---------------------
@@ -1265,10 +1274,10 @@ static const lv_font_fmt_txt_glyph_dsc_t glyph_dsc[] = {
 static const uint16_t unicode_list_2[] = {
     0x0, 0x14, 0x16, 0x23, 0x26, 0x27, 0x28, 0x39,
     0x47, 0x4a, 0x4b, 0x4c, 0x50, 0x68, 0x6d, 0x71,
-    0x94, 0x128, 0x184, 0x1e5, 0x1fb, 0x200, 0x21d, 0x23f,
-    0x240, 0x241, 0x242, 0x243, 0x251, 0x292, 0x293, 0x2f1,
-    0x3dc, 0x3fc, 0x45c, 0x54a, 0x55f, 0x568, 0x59e, 0x59f,
-    0x6a8
+    0x94, 0x128, 0x184, 0x1e5, 0x1eb, 0x1fb, 0x200, 0x21d,
+    0x23f, 0x240, 0x241, 0x242, 0x243, 0x251, 0x292, 0x293,
+    0x2f1, 0x3dc, 0x3fc, 0x45c, 0x54a, 0x55f, 0x568, 0x59e,
+    0x59f, 0x6a8
 };
 
 /*Collect the unicode lists and glyph_id offsets*/
@@ -1284,7 +1293,7 @@ static const lv_font_fmt_txt_cmap_t cmaps[] =
     },
     {
         .range_start = 61441, .range_length = 1705, .glyph_id_start = 160,
-        .unicode_list = unicode_list_2, .glyph_id_ofs_list = NULL, .list_length = 41, .type = LV_FONT_FMT_TXT_CMAP_SPARSE_TINY
+        .unicode_list = unicode_list_2, .glyph_id_ofs_list = NULL, .list_length = 42, .type = LV_FONT_FMT_TXT_CMAP_SPARSE_TINY
     }
 };
 

src/displayapp/screens/ApplicationList.cpp

@@ -56,7 +56,7 @@ std::unique_ptr<Screen> ApplicationList::CreateScreen2() {
     {Symbols::paintbrush, Apps::Paint},
     {Symbols::paddle, Apps::Paddle},
     {"2", Apps::Twos},
-    {Symbols::chartLine, Apps::Motion},
+    {Symbols::calculator, Apps::Calculator},
     {Symbols::drum, Apps::Metronome},
     {Symbols::clock, Apps::Alarm},
   }};