feat: add linear scale answer type and associated settings

Signed-off-by: Christian Hartmann <chris-hartmann@gmx.de>

Author: Chartman123

lib/Constants.php

@@ -75,6 +75,7 @@ class Constants {
 	public const ANSWER_TYPE_DATETIME = 'datetime';
 	public const ANSWER_TYPE_TIME = 'time';
 	public const ANSWER_TYPE_FILE = 'file';
+	public const ANSWER_TYPE_LINEARSCALE = 'linearscale';
 
 	// All AnswerTypes
 	public const ANSWER_TYPES = [
@@ -87,13 +88,15 @@ class Constants {
 		self::ANSWER_TYPE_DATETIME,
 		self::ANSWER_TYPE_TIME,
 		self::ANSWER_TYPE_FILE,
+		self::ANSWER_TYPE_LINEARSCALE,
 	];
 
 	// AnswerTypes, that need/have predefined Options
 	public const ANSWER_TYPES_PREDEFINED = [
 		self::ANSWER_TYPE_MULTIPLE,
 		self::ANSWER_TYPE_MULTIPLEUNIQUE,
-		self::ANSWER_TYPE_DROPDOWN
+		self::ANSWER_TYPE_DROPDOWN,
+		self::ANSWER_TYPE_LINEARSCALE
 	];
 
 	// AnswerTypes for date/time questions
@@ -155,6 +158,13 @@ class Constants {
 		'x-office/spreadsheet',
 	];
 
+	public const EXTRA_SETTINGS_LINEARSCALE = [
+		'optionsStart' => ['integer'],
+		'optionsEnd' => ['integer'],
+		'optionsLabelBest' => ['string'],
+		'optionsLabelWorst' => ['string'],
+	];
+
 	public const FILENAME_INVALID_CHARS = [
 		"\n",
 		'/',

lib/ResponseDefinitions.php

@@ -25,8 +25,12 @@
  *   allowedFileTypes?: list<string>,
  *   maxAllowedFilesCount?: int,
  *   maxFileSize?: int,
+ *   optionsEnd?: int,
+ *   optionsLabelBest?: string,
+ *   optionsLabelWorst?: string,
  *   optionsLimitMax?: int,
  *   optionsLimitMin?: int,
+ *   optionsStart?: int
  *   shuffleOptions?: bool,
  *   validationRegex?: string,
  *   validationType?: string