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classes/Curve.php

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+<?php
+/**
+ * Copyright since 2007 PrestaShop SA and Contributors
+ * PrestaShop is an International Registered Trademark & Property of PrestaShop SA
+ *
+ * NOTICE OF LICENSE
+ *
+ * This source file is subject to the Open Software License (OSL 3.0)
+ * that is bundled with this package in the file LICENSE.md.
+ * It is also available through the world-wide-web at this URL:
+ * https://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@prestashop.com so we can send you a copy immediately.
+ *
+ * DISCLAIMER
+ *
+ * Do not edit or add to this file if you wish to upgrade PrestaShop to newer
+ * versions in the future. If you wish to customize PrestaShop for your
+ * needs please refer to https://devdocs.prestashop.com/ for more information.
+ *
+ * @author    PrestaShop SA and Contributors <contact@prestashop.com>
+ * @copyright Since 2007 PrestaShop SA and Contributors
+ * @license   https://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
+ */
+
+/**
+ * Data structure to store curves
+ */
+class CurveCore
+{
+    /**
+     * @var float[] indexed by string
+     */
+    protected $values = [];
+    /**
+     * @var string
+     */
+    protected $label;
+    /**
+     * Can be: bars, steps
+     *
+     * @var string
+     */
+    protected $type;
+
+    /**
+     * @param array $values
+     */
+    public function setValues($values)
+    {
+        $this->values = $values;
+    }
+
+    /**
+     * @param bool $time_mode
+     *
+     * @return string
+     */
+    public function getValues($time_mode = false)
+    {
+        ksort($this->values);
+        $string = '';
+        foreach ($this->values as $key => $value) {
+            $string .= '[' . addslashes((string) $key) . ($time_mode ? '000' : '') . ',' . (float) $value . '],';
+        }
+
+        return '{data:[' . rtrim($string, ',') . ']'
+            . (!empty($this->label) ? ',label:"' . $this->label . '"' : '') . ''
+            . (!empty($this->type) ? ',' . $this->type : '') . '}';
+    }
+
+    /**
+     * @param string $x
+     * @param float $y
+     */
+    public function setPoint($x, $y)
+    {
+        $this->values[(string) $x] = (float) $y;
+    }
+
+    /**
+     * @param string $label
+     */
+    public function setLabel($label)
+    {
+        $this->label = $label;
+    }
+
+    /**
+     * @param string $type accepts only 'bars' or 'steps'
+     */
+    public function setType($type)
+    {
+        $this->type = '';
+        if ($type == 'bars') {
+            $this->type = 'bars:{show:true,lineWidth:10}';
+        }
+        if ($type == 'steps') {
+            $this->type = 'lines:{show:true,steps:true}';
+        }
+    }
+
+    /**
+     * @param string $x
+     *
+     * @return float|null return point if found, null else
+     */
+    public function getPoint($x)
+    {
+        if (array_key_exists((string) $x, $this->values)) {
+            return $this->values[(string) $x];
+        }
+    }
+}