New feature: use progressive JPEG; set version 1.3

Author: mattiaverga

README.md

@@ -8,6 +8,9 @@ Automatic Intro Image needs IMagick php module to be installed and enabled on yo
 See https://github.com/mattiaverga/JAutomaticIntroImage/wiki for more help.
 
 ## Changelog
+### v1.3
+* New feature: use progressive JPEG
+
 ### v1.2
 * New feature: image in subdirectory
 * New feature: set custom JPEG compression

automaticintroimage.php

@@ -89,6 +89,11 @@ public function onContentBeforeSave($context, $article, $isNew)
                     $thumb->setImageCompressionQuality($compression_level);
                 }
 
+                if ($this->params->get('SetProgressiveJPG') == 1)
+                {
+                    $thumb->setInterlaceScheme(Imagick::INTERLACE_PLANE);
+                }
+                
                 // Get real image dimensions if maintain aspect ratio was selected
                 if ($this->params->get('MaintainAspectRatio') == 1)
                 {

automaticintroimage.xml

@@ -2,11 +2,11 @@
 <extension version="3.2" type="plugin" group="content" method="upgrade">
         <name>Content - Automatic Intro Image</name>
         <author>Mattia Verga</author>
-        <creationDate>20 November 2016</creationDate>
-        <copyright>Copyright (C) 2016 Mattia Verga. All rights reserved.</copyright>
+        <creationDate>2 June 2017</creationDate>
+        <copyright>Copyright (C) 2017 Mattia Verga. All rights reserved.</copyright>
         <license>GNU General Public License version 3 or later.</license>
         <authorEmail>mattia.verga@tiscali.it</authorEmail>
-        <version>1.2</version>
+        <version>1.3</version>
         <description>PLG_CONTENT_AUTOMATICINTROIMAGE_XML_DESCRIPTION</description>
         <files>
                 <filename plugin="automaticintroimage">automaticintroimage.php</filename>
@@ -99,6 +99,15 @@
                                         required="1"
                                         showon="ChangeImageQuality:1"
                                 />
+                                
+                                <field name="SetProgressiveJPG" type="radio"
+                                        default="1"
+                                        description="PLG_CONTENT_AUTOMATICINTROIMAGE_PARAM_PROGRESSIVE_DESCRIPTION"
+                                        label="PLG_CONTENT_AUTOMATICINTROIMAGE_PARAM_PROGRESSIVE_LABEL"
+                                >
+                                        <option value="0">PLG_CONTENT_AUTOMATICINTROIMAGE_PARAM_NO</option>
+                                        <option value="1">PLG_CONTENT_AUTOMATICINTROIMAGE_PARAM_YES</option>
+                                </field>
                         </fieldset>
                         <fieldset name="misc" label="PLG_CONTENT_AUTOMATICINTROIMAGE_FIELD_MISC_LABEL">
                                 <field name="CopyAltTitle" type="radio"

language/en-GB/en-GB.plg_content_automaticintroimage.ini

@@ -21,6 +21,8 @@ PLG_CONTENT_AUTOMATICINTROIMAGE_PARAM_IMGQLTY_LABEL="Compression level (50-100)"
 PLG_CONTENT_AUTOMATICINTROIMAGE_PARAM_IMGQLTY_DESCRIPTION="JPEG compression level."
 PLG_CONTENT_AUTOMATICINTROIMAGE_PARAM_HEIGHT_LABEL="Height of resized image (10-2000)"
 PLG_CONTENT_AUTOMATICINTROIMAGE_PARAM_HEIGHT_DESCRIPTION="Set the height of the resized image. If 'maintain aspect ratio' option is selected, this value will act as the max height of the resized image."
+PLG_CONTENT_AUTOMATICINTROIMAGE_PARAM_PROGRESSIVE_DESCRIPTION="If the original image is a JPG, the generated thumbnail will be a progressive JPG. This parameter has no effect on other image types."
+PLG_CONTENT_AUTOMATICINTROIMAGE_PARAM_PROGRESSIVE_LABEL="Use progressive JPG"
 PLG_CONTENT_AUTOMATICINTROIMAGE_PARAM_PUTSUBDIR_LABEL="Put in subdir"
 PLG_CONTENT_AUTOMATICINTROIMAGE_PARAM_PUTSUBDIR_DESCRIPTION="Put the intro image in a subdirectory. The path of the subdirectory is relative to the original image path."
 PLG_CONTENT_AUTOMATICINTROIMAGE_PARAM_RATIO_LABEL="Maintain aspect ratio"

language/it-IT/it-IT.plg_content_automaticintroimage.ini

@@ -18,6 +18,8 @@ PLG_CONTENT_AUTOMATICINTROIMAGE_PARAM_IMGQLTY_LABEL="Livello di compressione (50
 PLG_CONTENT_AUTOMATICINTROIMAGE_PARAM_IMGQLTY_DESCRIPTION="Livello di compression JPEG."
 PLG_CONTENT_AUTOMATICINTROIMAGE_PARAM_HEIGHT_LABEL="Altezza immagine (10-2000)"
 PLG_CONTENT_AUTOMATICINTROIMAGE_PARAM_HEIGHT_DESCRIPTION="Imposta l'altezza dell'immagine ridimensionata. Se è abilitata l'opzione 'Mantieni proporzioni', questo valore sarà la massima altezza che l'immagine ridimensionata potrà assumere."
+PLG_CONTENT_AUTOMATICINTROIMAGE_PARAM_PROGRESSIVE_DESCRIPTION="Se l'immagine originale è JPG, la miniatura sarà generata come JPG progressivo. Questo parametro non ha effetto su altri tipi di immagine."
+PLG_CONTENT_AUTOMATICINTROIMAGE_PARAM_PROGRESSIVE_LABEL="Usa JPG progressivo"
 PLG_CONTENT_AUTOMATICINTROIMAGE_PARAM_PUTSUBDIR_LABEL="Genera in sottodirectory"
 PLG_CONTENT_AUTOMATICINTROIMAGE_PARAM_PUTSUBDIR_DESCRIPTION="Genera l'immagine introduttiva in una sottodirectory. Il percorso della sottodirectory è relativo all'immagine originale."
 PLG_CONTENT_AUTOMATICINTROIMAGE_PARAM_RATIO_LABEL="Mantieni proporzioni"