initial commit

Signed-off-by: Josh Crawford <[email protected]>

README.md

@@ -0,0 +1,30 @@
+# Image Resizer
+
+Image Resizer is a Craft plugin that resizes your assets when they are uploaded. This allows huge images to be resized so as not to use up unnecessary disk space, but still kept at a reasonable resolution. This plugin is not a replacement for using image transforms throughout your site.
+
+The aspect ratio of images are maintained, and will always match the maximum width/height options in your plugin settings. For example, given a 4000 x 2500px image and a max width/height of 1024px, the resulting image would be 1024 x 640px.
+
+## Install
+
+- Add the `imageresize` directory into your `craft/plugins` directory.
+- Navigate to Settings -> Plugins and click the "Install" button.
+
+**Plugin options**
+
+- Enable/Disable resizing images on upload.
+- Set the maximum width/height (in pixels) for uploaded images. Set to 2048px by default.
+
+
+## Roadmap
+
+- Batch processing of existing assets.
+- Update assetRecord after image resize, to reflect new size.
+- Restrict to specific Assets sources.
+- Add image quality option.
+
+
+## Changelog
+
+#### 0.0.1
+
+- Initial release.

imageresizer/ImageResizerPlugin.php

@@ -0,0 +1,64 @@
+<?php
+namespace Craft;
+
+class ImageResizerPlugin extends BasePlugin
+{
+    /* --------------------------------------------------------------
+    * PLUGIN INFO
+    * ------------------------------------------------------------ */
+
+    public function getName()
+    {
+        return Craft::t('Image Resizer');
+    }
+
+    public function getVersion()
+    {
+        return '0.0.1';
+    }
+
+    public function getDeveloper()
+    {
+        return 'S. Group';
+    }
+
+    public function getDeveloperUrl()
+    {
+        return 'http://sgroup.com.au';
+    }
+
+    public function getSettingsHtml()
+    {
+        return craft()->templates->render('imageresizer/settings', array(
+            'settings' => $this->getSettings(),
+        ));
+    }
+
+    protected function defineSettings()
+    {
+        return array(
+            'enabled' => array( AttributeType::Bool, 'default' => true ),
+            'imageWidth' => array( AttributeType::Number, 'default' => '2048' ),
+            'imageHeight' => array( AttributeType::Number, 'default' => '2048' ),
+        );
+    }
+
+
+    /* --------------------------------------------------------------
+    * HOOKS
+    * ------------------------------------------------------------ */
+
+    public function init()
+    {
+        craft()->on('assets.onBeforeSaveAsset', function(Event $event) {
+            if (craft()->imageResizer->getSettings()->enabled) {
+                $asset = $event->params['asset'];
+
+                // Only process if it's a new asset being saved - and if its actually an image
+                if ($event->params['isNewAsset'] && $asset->kind == 'image') {
+                    craft()->imageResizer->resize($asset);
+                }
+            }
+        });
+    }
+}

imageresizer/services/ImageResizerService.php

@@ -0,0 +1,70 @@
+<?php
+namespace Craft;
+
+class ImageResizerService extends BaseApplicationComponent
+{
+	// Public Methods
+	// =========================================================================
+
+	public function getPlugin()
+    {
+        return craft()->plugins->getPlugin('imageResizer');
+    }
+
+    public function getSettings()
+    {
+        return $this->getPlugin()->getSettings();
+    }
+
+	public function resize($asset)
+	{
+		// Get the full path of the asset we want to resize
+		$path = $this->_getImagePath($asset);
+		$image = craft()->images->loadImage($path);
+
+		// Our maximum width/height for assets from plugin settings
+		$imageWidth = $this->getSettings()->imageWidth;
+		$imageHeight = $this->getSettings()->imageHeight;
+
+		// Lets check to see if this image needs resizing. Split into two steps to ensure
+		// proper aspect ratio is preserved and no upscaling occurs.
+
+		if ($image->getWidth() > $imageWidth) {
+			$this->_resizeImage($image, $imageWidth, null);
+		}
+
+		if ($image->getHeight() > $imageHeight) {
+			$this->_resizeImage($image, null, $imageHeight);
+		}
+
+		$image->saveAs($path);
+	}
+
+
+	// Private Methods
+	// =========================================================================
+
+	private function _getImagePath($asset)
+	{
+		// Get the full path for the asset being uploaded
+		$source = $asset->getSource();
+
+		// Can only deal with local assets for now
+		if ($source->type != 'Local') {
+			return true;
+		}
+
+		$sourcePath = $source->settings['path'];
+		$folderPath = $asset->getFolder()->path;
+
+		return $sourcePath . $folderPath . $asset->filename;
+	}
+
+	private function _resizeImage(&$image, $width, $height)
+	{
+		// Calculate the missing width/height for the asset - ensure aspect ratio is maintained
+		$dimensions = ImageHelper::calculateMissingDimension($width, $height, $image->getWidth(), $image->getHeight());
+
+		$image->resize($dimensions[0], $dimensions[1]);
+	}
+}

imageresizer/templates/settings/index.html

@@ -0,0 +1,30 @@
+{% import "_includes/forms" as forms %}
+
+{{ forms.lightswitchField({
+    label: 'Enabled' | t,
+    instructions: 'Whether uploaded images should be resized or not.' | t,
+    id: 'enabled',
+    name: 'enabled',
+    on: settings.enabled,
+    first: true,
+}) }}
+
+{{ forms.textField({
+    label: 'Image Width' | t,
+    instructions: 'The maximum width in pixels allowed for uploaded images.' | t,
+    id: 'imageWidth',
+    name: 'imageWidth',
+    value: settings.imageWidth,
+    size: 10,
+}) }}
+
+{{ forms.textField({
+    label: 'Image Height' | t,
+    instructions: 'The maximum height in pixels allowed for uploaded images.' | t,
+    id: 'imageHeight',
+    name: 'imageHeight',
+    value: settings.imageHeight,
+    size: 10,
+}) }}
+
+<hr>