New feature: ConfigurableSwatches now allows for auto-generation of the swatch image file based on color selection

app/code/core/Mage/ConfigurableSwatches/Helper/Productimg.php

@@ -251,6 +251,9 @@ public function getGlobalSwatchUrl(
         do {
             $filename = Mage::helper('configurableswatches')->getHyphenatedString($value) . $fileExt;
             $swatchImage = $this->_resizeSwatchImage($filename, 'media', $width, $height);
+            if (!$swatchImage) {
+                $swatchImage = $this->createSwatchImage($value, $width, $height);
+            }
             if (!$swatchImage && $defaultValue == $value) {
                 return '';  // no image found and no further fallback
             } elseif (!$swatchImage) {
@@ -263,6 +266,46 @@ public function getGlobalSwatchUrl(
         return Mage::getBaseUrl(Mage_Core_Model_Store::URL_TYPE_MEDIA) . $swatchImage;
     }
 
+    /**
+     * Create a swatch image for the given filename
+     *
+     * @param string $value
+     * @param int $width
+     * @param int $height
+     * @return string|null $destPath
+     * @throws Mage_Core_Exception
+     */
+    public function createSwatchImage($value, $width, $height)
+    {
+        $filename = Mage::helper('configurableswatches')->getHyphenatedString($value) . self::SWATCH_FILE_EXT;
+        $optionSwatch = Mage::getModel('eav/entity_attribute_option_swatch')
+            ->load($filename, 'filename');
+        if (!$optionSwatch->getValue()) {
+            return '';
+        }
+        // Form full path to where we want to cache resized version
+        $destPathArr = [
+            self::SWATCH_CACHE_DIR,
+            Mage::app()->getStore()->getId(),
+            $width . 'x' . $height,
+            'media',
+            trim($filename, '/'),
+        ];
+        $destPath = implode('/', $destPathArr);
+        if (!is_dir(Mage::getBaseDir(Mage_Core_Model_Store::URL_TYPE_MEDIA) . DS . dirname($destPath))) {
+            $io = new Varien_Io_File();
+            $io->mkdir(Mage::getBaseDir(Mage_Core_Model_Store::URL_TYPE_MEDIA) . DS . dirname($destPath), 0777, true);
+        }
+        $newImage = imagecreatetruecolor($width, $height);
+        list($r, $g, $b) = sscanf($optionSwatch->getValue(), "#%02x%02x%02x");
+        $backgroundColor = imagecolorallocate($newImage, (int)$r, (int)$g, (int)$b);
+        imagefill($newImage, 0, 0, $backgroundColor);
+        imagepng($newImage, Mage::getBaseDir(Mage_Core_Model_Store::URL_TYPE_MEDIA) . DS . $destPath);
+        imagedestroy($newImage);
+        Mage::helper('core/file_storage_database')->saveFile($destPath);
+        return $destPath;
+    }
+
     /**
      * Performs the resize operation on the given swatch image file and returns a
      * relative path to the resulting image file

app/code/core/Mage/Eav/Block/Adminhtml/Attribute/Edit/Options/Abstract.php

@@ -146,11 +146,13 @@ public function getOptionValues()
                     $value['store' . $store->getId()] = isset($storeValues[$option->getId()])
                         ? $helper->escapeHtml($storeValues[$option->getId()]) : '';
                 }
+                if ($this->isConfigurableSwatchesEnabled()) {
+                    $value['swatch'] = $option->getSwatch();
+                }
                 $values[] = new Varien_Object($value);
             }
             $this->setData('option_values', $values);
         }
-
         return $values;
     }
 
@@ -209,4 +211,15 @@ public function getAttributeObject()
     {
         return Mage::registry('entity_attribute');
     }
+
+    /**
+     * Check if configurable swatches module is enabled and attribute is swatch type
+     *
+     * @return boolean
+     */
+    public function isConfigurableSwatchesEnabled(): bool
+    {
+        return Mage::helper('core')->isModuleEnabled('Mage_ConfigurableSwatches')
+            && Mage::helper('configurableswatches')->attrIsSwatchType($this->getAttributeObject());
+    }
 }

app/code/core/Mage/Eav/Model/Entity/Attribute/Option.php

@@ -34,4 +34,19 @@ public function _construct()
     {
         $this->_init('eav/entity_attribute_option');
     }
+
+    /**
+     * Retrieve swatch value
+     *
+     * @return Mage_Eav_Model_Entity_Attribute_Option_Swatch|bool
+     */
+    public function getSwatch()
+    {
+        $swatch = Mage::getModel('eav/entity_attribute_option_swatch')
+            ->load($this->getId(), 'option_id');
+        if (!$swatch->getId()) {
+            return false;
+        }
+        return $swatch->getValue();
+    }
 }

app/code/core/Mage/Eav/Model/Entity/Attribute/Option/Swatch.php

@@ -0,0 +1,31 @@
+<?php
+/**
+ * OpenMage
+ *
+ * This source file is subject to the Open Software License (OSL 3.0)
+ * that is bundled with this package in the file LICENSE.txt.
+ * It is also available at https://opensource.org/license/osl-3-0-php
+ *
+ * @category   Mage
+ * @package    Mage_Eav
+ * @copyright  Copyright (c) 2006-2020 Magento, Inc. (https://www.magento.com)
+ * @copyright  Copyright (c) 2020-2023 The OpenMage Contributors (https://www.openmage.org)
+ * @license    https://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
+ */
+
+/**
+ * Entity attribute swatch model
+ *
+ * @category   Mage
+ * @package    Mage_Eav
+ *
+ * @method Mage_Eav_Model_Resource_Entity_Attribute_Option_Swatch _getResource()
+ * @method Mage_Eav_Model_Resource_Entity_Attribute_Option_Swatch getResource()
+ */
+class Mage_Eav_Model_Entity_Attribute_Option_Swatch extends Mage_Core_Model_Abstract
+{
+    public function _construct()
+    {
+        $this->_init('eav/entity_attribute_option_swatch');
+    }
+}

app/code/core/Mage/Eav/Model/Resource/Entity/Attribute.php

@@ -288,6 +288,7 @@ protected function _saveOption(Mage_Core_Model_Abstract $object)
             $adapter            = $this->_getWriteAdapter();
             $optionTable        = $this->getTable('eav/attribute_option');
             $optionValueTable   = $this->getTable('eav/attribute_option_value');
+            $optionSwatchTable   = $this->getTable('eav/attribute_option_swatch');
 
             $stores = Mage::app()->getStores(true);
             if (isset($option['value'])) {
@@ -301,6 +302,7 @@ protected function _saveOption(Mage_Core_Model_Abstract $object)
                     if (!empty($option['delete'][$optionId])) {
                         if ($intOptionId) {
                             $adapter->delete($optionTable, ['option_id = ?' => $intOptionId]);
+                            $adapter->delete($optionSwatchTable, ['option_id = ?' => $intOptionId]);
                         }
                         continue;
                     }
@@ -346,11 +348,24 @@ protected function _saveOption(Mage_Core_Model_Abstract $object)
                             $adapter->insert($optionValueTable, $data);
                         }
                     }
+
+                    // Swatch Value
+                    if (isset($option['swatch'][$optionId])) {
+                        $data = [
+                            'option_id' => $intOptionId,
+                            'value'     => $option['swatch'][$optionId],
+                            'filename'  => Mage::helper('configurableswatches')->getHyphenatedString($values[0]) . Mage_ConfigurableSwatches_Helper_Productimg::SWATCH_FILE_EXT
+                        ];
+                        $adapter->insertOnDuplicate($this->getTable('eav/attribute_option_swatch'), $data);
+                    }
                 }
                 $bind  = ['default_value' => implode(',', $attributeDefaultValue)];
                 $where = ['attribute_id =?' => $object->getId()];
                 $adapter->update($this->getMainTable(), $bind, $where);
             }
+            if (isset($option['swatch'])) {
+                Mage::helper('configurableswatches/productimg')->clearSwatchesCache();
+            }
         }
 
         return $this;

app/code/core/Mage/Eav/Model/Resource/Entity/Attribute/Option/Swatch.php

@@ -0,0 +1,28 @@
+<?php
+/**
+ * OpenMage
+ *
+ * This source file is subject to the Open Software License (OSL 3.0)
+ * that is bundled with this package in the file LICENSE.txt.
+ * It is also available at https://opensource.org/license/osl-3-0-php
+ *
+ * @category   Mage
+ * @package    Mage_Eav
+ * @copyright  Copyright (c) 2006-2020 Magento, Inc. (https://www.magento.com)
+ * @copyright  Copyright (c) 2019-2023 The OpenMage Contributors (https://www.openmage.org)
+ * @license    https://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
+ */
+
+/**
+ * Entity attribute swatch resource model
+ *
+ * @category   Mage
+ * @package    Mage_Eav
+ */
+class Mage_Eav_Model_Resource_Entity_Attribute_Option_Swatch extends Mage_Core_Model_Resource_Db_Abstract
+{
+    protected function _construct()
+    {
+        $this->_init('eav/attribute_option_swatch', 'option_id');
+    }
+}

app/code/core/Mage/Eav/etc/config.xml

@@ -17,7 +17,7 @@
 <config>
     <modules>
         <Mage_Eav>
-            <version>1.6.0.1</version>
+            <version>1.6.0.2</version>
         </Mage_Eav>
     </modules>
     <global>
@@ -60,6 +60,9 @@
                     <attribute_option_value>
                         <table>eav_attribute_option_value</table>
                     </attribute_option_value>
+                    <attribute_option_swatch>
+                        <table>eav_attribute_option_swatch</table>
+                    </attribute_option_swatch>
                     <attribute_label>
                         <table>eav_attribute_label</table>
                     </attribute_label>

app/code/core/Mage/Eav/sql/eav_setup/upgrade-1.6.0.1-1.6.0.2.php

@@ -0,0 +1,58 @@
+<?php
+/**
+ * OpenMage
+ *
+ * This source file is subject to the Open Software License (OSL 3.0)
+ * that is bundled with this package in the file LICENSE.txt.
+ * It is also available at https://opensource.org/license/osl-3-0-php
+ *
+ * @category   Mage
+ * @package    Mage_Eav
+ * @copyright  Copyright (c) 2006-2020 Magento, Inc. (https://www.magento.com)
+ * @copyright  Copyright (c) 2020-2022 The OpenMage Contributors (https://www.openmage.org)
+ * @license    https://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
+ */
+
+/** @var Mage_Eav_Model_Entity_Setup $installer */
+$installer = $this;
+$installer->startSetup();
+
+/**
+ * Create table 'eav/attribute_option_swatch'
+ */
+$table = $installer->getConnection()
+    ->newTable($installer->getTable('eav/attribute_option_swatch'))
+    ->addColumn('value_id', Varien_Db_Ddl_Table::TYPE_INTEGER, null, [
+        'identity'  => true,
+        'unsigned'  => true,
+        'nullable'  => false,
+        'primary'   => true,
+    ], 'Value Id')
+    ->addColumn('option_id', Varien_Db_Ddl_Table::TYPE_INTEGER, null, [
+        'unsigned'  => true,
+        'nullable'  => false,
+        'default'   => '0',
+    ], 'Option Id')
+    ->addColumn('value', Varien_Db_Ddl_Table::TYPE_TEXT, 255, [
+        'nullable'  => true,
+        'default'   => null,
+    ], 'Value')
+    ->addColumn('filename', Varien_Db_Ddl_Table::TYPE_TEXT, 255, [
+        'nullable'  => true,
+        'default'   => null,
+    ], 'Filename')
+    ->addIndex(
+        $installer->getIdxName('eav/attribute_option_value', ['option_id']),
+        ['option_id'],
+        ['type' => Varien_Db_Adapter_Interface::INDEX_TYPE_UNIQUE]
+    )
+    ->addForeignKey(
+        $installer->getFkName('eav/attribute_option_value', 'option_id', 'eav/attribute_option', 'option_id'),
+        'option_id',
+        $installer->getTable('eav/attribute_option'),
+        'option_id',
+        Varien_Db_Ddl_Table::ACTION_CASCADE,
+        Varien_Db_Ddl_Table::ACTION_CASCADE
+    )
+    ->setComment('Eav Attribute Option Swatch');
+$installer->getConnection()->createTable($table);

app/design/adminhtml/default/default/template/eav/attribute/options.phtml

@@ -64,6 +64,9 @@
         <div class="hor-scroll">
             <table class="dynamic-grid" cellspacing="0"  cellpadding="0">
                 <tr id="attribute-options-table">
+                    <?php if ($this->isConfigurableSwatchesEnabled()): ?>
+                        <th><?php echo $this->__('Swatch'); ?></th>
+                    <?php endif ?>
                     <?php foreach ($this->getStores() as $_store): ?>
                         <th><?php echo $this->escapeHtml($_store->getName()); ?></th>
                     <?php endforeach ?>
@@ -75,7 +78,12 @@
                             <?php endif ?>
                         </th>
                     </tr>
-                    <tr class="no-display template" id="row-template">
+                    <tr class="no-display template" id="row-template">    
+                        <?php if ($this->isConfigurableSwatchesEnabled()): ?>
+                        <td>
+                            <input type="color" class="input-text" name="option[swatch][{{id}}]" value="{{swatch}}" />                            
+                        </td>
+                        <?php endif ?>
                         <?php foreach ($this->getStores() as $_store): ?>
                         <td><input name="option[value][{{id}}][<?php echo $_store->getId() ?>]" value="{{store<?php echo $_store->getId() ?>}}" class="input-text<?php if($_store->getId()==0): ?> required-option<?php endif ?>" type="text" <?php if ($this->getReadOnly()):?> disabled="disabled"<?php endif ?>/></td>
                         <?php endforeach ?>
@@ -100,6 +108,11 @@ var optionDefaultInputType = 'radio';
 // IE removes quotes from element.innerHTML whenever it thinks they're not needed, which breaks html.
 var templateText =
         '<tr class="option-row" title="ID: {{id}}">'+
+        <?php if ($this->isConfigurableSwatchesEnabled()): ?>
+            '<td>'+
+                '<input type="color" class="input-text" name="option[swatch][{{id}}]" value="{{swatch}}" />'+
+            '</td>'+
+        <?php endif ?>
 <?php foreach ($this->getStores() as $_store): ?>
             '<td><input name="option[value][{{id}}][<?php echo $_store->getId() ?>]" value="{{store<?php echo $_store->getId() ?>}}" class="input-text<?php if($_store->getId()==0): ?> required-option<?php endif ?>" type="text" <?php if ($this->getReadOnly()):?> disabled="disabled"<?php endif ?>/><\/td>'+
 <?php endforeach ?>