From 563829bf82e9ff32104c3b48fd18ad8ed67700cc Mon Sep 17 00:00:00 2001
From: Flaparoo <629229+flaparoo@users.noreply.github.com>
Date: Tue, 10 Sep 2024 21:18:25 +0800
Subject: [PATCH] calculator: truncate long numbers

---
 apps/calculator/ChangeLog     | 1 +
 apps/calculator/app.js        | 4 ++++
 apps/calculator/metadata.json | 2 +-
 3 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/apps/calculator/ChangeLog b/apps/calculator/ChangeLog
index 2e1ace7bff..7e66e5d554 100644
--- a/apps/calculator/ChangeLog
+++ b/apps/calculator/ChangeLog
@@ -5,3 +5,4 @@
 0.05: Grid positioning and swipe controls to switch between numbers, operators and special (for Bangle.js 2)
 0.06: Bangle.js 2: Exit with a short press of the physical button
 0.07: Bangle.js 2: Exit by pressing upper left corner of the screen
+0.08: truncate long numbers (and append '-' to displayed value)
diff --git a/apps/calculator/app.js b/apps/calculator/app.js
index 465291d139..b3b2f16f53 100644
--- a/apps/calculator/app.js
+++ b/apps/calculator/app.js
@@ -13,6 +13,7 @@ require("Font7x11Numeric7Seg").add(Graphics);
 var DEFAULT_SELECTION_NUMBERS = '5', DEFAULT_SELECTION_OPERATORS = '=', DEFAULT_SELECTION_SPECIALS = 'R';
 var RIGHT_MARGIN = 20;
 var RESULT_HEIGHT = 40;
+var RESULT_MAX_LEN = Math.floor((g.getWidth() - 20) / 14);
 var COLORS = {
   // [normal, selected]
   DEFAULT: ['#7F8183', '#A6A6A7'],
@@ -261,6 +262,9 @@ function displayOutput(num) {
     num = num.toString();
     num = num.replace("-","- "); // fix padding for '-'
     g.setFont('7x11Numeric7Seg', 2);
+    if (num.length > RESULT_MAX_LEN) {
+      num = num.substr(0, RESULT_MAX_LEN - 1)+'-';
+    }
   }
   g.setFontAlign(1,0);
   g.drawString(num, g.getWidth()-20, RESULT_HEIGHT/2);
diff --git a/apps/calculator/metadata.json b/apps/calculator/metadata.json
index 1674b78434..a88444e11d 100644
--- a/apps/calculator/metadata.json
+++ b/apps/calculator/metadata.json
@@ -2,7 +2,7 @@
   "id": "calculator",
   "name": "Calculator",
   "shortName": "Calculator",
-  "version": "0.07",
+  "version": "0.08",
   "description": "Basic calculator reminiscent of MacOs's one. Handy for small calculus.",
   "icon": "calculator.png",
   "screenshots": [{"url":"screenshot_calculator.png"}],