Improve rendering for checkbox fields

lib/api_form.dart

@@ -6,6 +6,7 @@ import 'package:inventree/l10.dart';
 
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
+import 'package:inventree/widget/snacks.dart';
 import 'package:one_context/one_context.dart';
 
 
@@ -83,16 +84,9 @@ class APIFormField {
     return TextFormField(
       decoration: InputDecoration(
         labelText: required ? label + "*" : label,
-        labelStyle: TextStyle(
-          fontWeight: FontWeight.bold,
-          fontSize: 22,
-          color: hasErrors() ? Color.fromRGBO(250, 50, 50, 1) : Color.fromRGBO(50, 50, 50, 1),
-        ),
+        labelStyle: _labelStyle(),
         helperText: helpText,
-        helperStyle: TextStyle(
-          fontStyle: FontStyle.italic,
-          color: hasErrors() ? Color.fromRGBO(205, 50, 50, 1) : Color.fromRGBO(50, 50, 50, 1),
-        ),
+        helperStyle: _helperStyle(),
         hintText: placeholderText,
       ),
       initialValue: value ?? '',
@@ -112,13 +106,31 @@ class APIFormField {
 
     return CheckBoxField(
       label: label,
-      hint: helpText,
+      labelStyle: _labelStyle(),
+      helperText: helpText,
+      helperStyle: _helperStyle(),
       initial: value,
       onSaved: (val) {
         data['value'] = val;
       },
     );
   }
+
+  TextStyle _labelStyle() {
+    return new TextStyle(
+      fontWeight: FontWeight.bold,
+      fontSize: 18,
+      color: hasErrors() ? Color.fromRGBO(250, 50, 50, 1) : Color.fromRGBO(50, 50, 50, 1),
+    );
+  }
+
+  TextStyle _helperStyle() {
+    return new TextStyle(
+      fontStyle: FontStyle.italic,
+      color: hasErrors() ? Color.fromRGBO(205, 50, 50, 1) : Color.fromRGBO(50, 50, 50, 1),
+    );
+  }
+
 }
 
 
@@ -166,7 +178,12 @@ Future<void> launchApiForm(BuildContext context, String title, String url, Map<S
   var availableFields = extractFields(options);
 
   if (availableFields.isEmpty) {
-    print("Empty fields {} returned from ${url}");
+    // User does not have permission to perform this action
+    showSnackIcon(
+      L10().response403,
+      icon: FontAwesomeIcons.userTimes,
+    );
+
     return;
   }
 

lib/widget/fields.dart

@@ -92,17 +92,23 @@ class ImagePickerField extends FormField<File> {
 
 
 class CheckBoxField extends FormField<bool> {
-  CheckBoxField({String? label, String? hint, bool initial = false, Function(bool?)? onSaved}) :
+  CheckBoxField({
+      String? label, bool initial = false, Function(bool?)? onSaved,
+      TextStyle? labelStyle,
+      String? helperText,
+      TextStyle? helperStyle,
+  }) :
       super(
         onSaved: onSaved,
         initialValue: initial,
         builder: (FormFieldState<bool> state) {
           return CheckboxListTile(
             //dense: state.hasError,
-            title: label == null ? null : Text(label),
+            title: label != null ? Text(label, style: labelStyle) : null,
             value: state.value,
             onChanged: state.didChange,
-            subtitle: hint == null ? null : Text(hint),
+            subtitle: helperText != null ? Text(helperText, style: helperStyle) : null,
+            contentPadding: EdgeInsets.zero,
           );
         }
       );

lib/widget/stock_item_test_results.dart

@@ -84,7 +84,7 @@ class _StockItemTestResultDisplayState extends RefreshableState<StockItemTestRes
         ),
         CheckBoxField(
           label: L10().result,
-          hint: L10().testPassedOrFailed,
+          helperText: L10().testPassedOrFailed,
           initial: true,
           onSaved: (value) => _result = value ?? false,
         ),