calculator: truncate long numbers

espruino · Sep 10, 2024 · 563829b · 563829b
1 parent 4d8c46b
commit 563829b
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Showing 3 changed files with 6 additions and 1 deletion.
diff --git 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
@@ -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
@@ -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"}],