mirror of
https://github.com/silverstripe/silverstripe-framework
synced 2024-07-11 14:03:51 +02:00
3ee8f505b7
The main benefit of this is so that authors who make use of
.editorconfig don't end up with whitespace changes in their PRs.
Spaces vs. tabs has been left alone, although that could do with a
tidy-up in SS4 after the switch to PSR-1/2.
The command used was this:
for match in '*.ss' '*.css' '*.scss' '*.html' '*.yml' '*.php' '*.js' '*.csv' '*.inc' '*.php5'; do
find . -path ./thirdparty -not -prune -o -path ./admin/thirdparty -not -prune -o -type f -name "$match" -exec sed -E -i '' 's/[[:space:]]+$//' {} \+
find . -path ./thirdparty -not -prune -o -path ./admin/thirdparty -not -prune -o -type f -name "$match" | xargs perl -pi -e 's/ +$//'
done
1085 lines
33 KiB
PHP
1085 lines
33 KiB
PHP
<?php
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/**
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* Represents an Image
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*
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* @package framework
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* @subpackage filesystem
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*/
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class Image extends File implements Flushable {
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const ORIENTATION_SQUARE = 0;
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const ORIENTATION_PORTRAIT = 1;
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const ORIENTATION_LANDSCAPE = 2;
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private static $backend = "GDBackend";
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private static $casting = array(
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'Tag' => 'HTMLText',
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);
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/**
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* @config
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* @var int The width of an image thumbnail in a strip.
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*/
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private static $strip_thumbnail_width = 50;
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/**
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* @config
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* @var int The height of an image thumbnail in a strip.
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*/
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private static $strip_thumbnail_height = 50;
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/**
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* @config
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* @var int The width of an image thumbnail in the CMS.
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*/
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private static $cms_thumbnail_width = 100;
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/**
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* @config
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* @var int The height of an image thumbnail in the CMS.
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*/
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private static $cms_thumbnail_height = 100;
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/**
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* @config
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* @var int The width of an image thumbnail in the Asset section.
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*/
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private static $asset_thumbnail_width = 100;
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/**
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* @config
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* @var int The height of an image thumbnail in the Asset section.
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*/
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private static $asset_thumbnail_height = 100;
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/**
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* @config
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* @var int The width of an image preview in the Asset section.
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*/
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private static $asset_preview_width = 400;
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/**
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* @config
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* @var int The height of an image preview in the Asset section.
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*/
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private static $asset_preview_height = 200;
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/**
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* @config
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* @var bool Force all images to resample in all cases
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*/
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private static $force_resample = false;
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/**
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* @config
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* @var bool Regenerates images if set to true. This is set by {@link flush()}
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*/
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private static $flush = false;
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/**
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* Triggered early in the request when someone requests a flush.
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*/
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public static function flush() {
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self::$flush = true;
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}
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public static function set_backend($backend) {
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self::config()->backend = $backend;
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}
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public static function get_backend() {
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return self::config()->backend;
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}
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/**
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* Retrieve the original filename from the path of a transformed image.
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* Any other filenames pass through unchanged.
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*
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* @param string $path
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* @return string
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*/
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public static function strip_resampled_prefix($path) {
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return preg_replace('/_resampled\/(.+\/|[^-]+-)/', '', $path);
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}
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/**
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* Set up template methods to access the transformations generated by 'generate' methods.
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*/
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public function defineMethods() {
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$methodNames = $this->allMethodNames();
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foreach($methodNames as $methodName) {
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if(substr($methodName,0,8) == 'generate') {
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$this->addWrapperMethod(substr($methodName,8), 'getFormattedImage');
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}
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}
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parent::defineMethods();
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}
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public function getCMSFields() {
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$fields = parent::getCMSFields();
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$urlLink = "<div class='field readonly'>";
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$urlLink .= "<label class='left'>"._t('AssetTableField.URL','URL')."</label>";
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$urlLink .= "<span class='readonly'><a href='{$this->Link()}'>{$this->RelativeLink()}</a></span>";
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$urlLink .= "</div>";
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// todo: check why the above code is here, since $urlLink is not used?
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//attach the addition file information for an image to the existing FieldGroup create in the parent class
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$fileAttributes = $fields->fieldByName('Root.Main.FilePreview')->fieldByName('FilePreviewData');
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$fileAttributes->push(new ReadonlyField("Dimensions", _t('AssetTableField.DIM','Dimensions') . ':'));
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return $fields;
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}
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/**
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* Return an XHTML img tag for this Image,
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* or NULL if the image file doesn't exist on the filesystem.
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*
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* @return string
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*/
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public function getTag() {
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if($this->exists()) {
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$url = $this->getURL();
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$title = ($this->Title) ? $this->Title : $this->Filename;
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if($this->Title) {
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$title = Convert::raw2att($this->Title);
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} else {
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if(preg_match("/([^\/]*)\.[a-zA-Z0-9]{1,6}$/", $title, $matches)) {
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$title = Convert::raw2att($matches[1]);
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}
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}
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return "<img src=\"$url\" alt=\"$title\" />";
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}
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}
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/**
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* Return an XHTML img tag for this Image.
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*
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* @return string
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*/
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public function forTemplate() {
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return $this->getTag();
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}
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/**
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* File names are filtered through {@link FileNameFilter}, see class documentation
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* on how to influence this behaviour.
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*
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* @deprecated 4.0
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*/
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public function loadUploadedImage($tmpFile) {
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Deprecation::notice('4.0', 'Use the Upload::loadIntoFile()');
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if(!is_array($tmpFile)) {
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user_error("Image::loadUploadedImage() Not passed an array. Most likely, the form hasn't got the right"
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. "enctype", E_USER_ERROR);
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}
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if(!$tmpFile['size']) {
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return;
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}
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$class = $this->class;
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// Create a folder
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if(!file_exists(ASSETS_PATH)) {
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mkdir(ASSETS_PATH, Config::inst()->get('Filesystem', 'folder_create_mask'));
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}
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if(!file_exists(ASSETS_PATH . "/$class")) {
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mkdir(ASSETS_PATH . "/$class", Config::inst()->get('Filesystem', 'folder_create_mask'));
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}
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// Generate default filename
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$nameFilter = FileNameFilter::create();
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$file = $nameFilter->filter($tmpFile['name']);
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if(!$file) $file = "file.jpg";
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$file = ASSETS_PATH . "/$class/$file";
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while(file_exists(BASE_PATH . "/$file")) {
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$i = $i ? ($i+1) : 2;
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$oldFile = $file;
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$file = preg_replace('/[0-9]*(\.[^.]+$)/', $i . '\\1', $file);
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if($oldFile == $file && $i > 2) user_error("Couldn't fix $file with $i", E_USER_ERROR);
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}
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if(file_exists($tmpFile['tmp_name']) && copy($tmpFile['tmp_name'], BASE_PATH . "/$file")) {
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// Remove the old images
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$this->deleteFormattedImages();
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return true;
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}
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}
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/**
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* Scale image proportionally to fit within the specified bounds
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*
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* @param integer $width The width to size within
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* @param integer $height The height to size within
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* @return Image|null
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*/
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public function Fit($width, $height) {
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// Prevent divide by zero on missing/blank file
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if(!$this->getWidth() || !$this->getHeight()) return null;
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// Check if image is already sized to the correct dimension
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$widthRatio = $width / $this->getWidth();
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$heightRatio = $height / $this->getHeight();
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if( $widthRatio < $heightRatio ) {
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// Target is higher aspect ratio than image, so check width
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if($this->isWidth($width) && !Config::inst()->get('Image', 'force_resample')) return $this;
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} else {
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// Target is wider or same aspect ratio as image, so check height
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if($this->isHeight($height) && !Config::inst()->get('Image', 'force_resample')) return $this;
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}
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// Item must be regenerated
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return $this->getFormattedImage('Fit', $width, $height);
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}
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/**
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* Scale image proportionally to fit within the specified bounds
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*
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* @param Image_Backend $backend
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* @param integer $width The width to size within
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* @param integer $height The height to size within
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* @return Image_Backend
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*/
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public function generateFit(Image_Backend $backend, $width, $height) {
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return $backend->resizeRatio($width, $height);
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}
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/**
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* Proportionally scale down this image if it is wider or taller than the specified dimensions.
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* Similar to Fit but without up-sampling. Use in templates with $FitMax.
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*
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* @uses Image::Fit()
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* @param integer $width The maximum width of the output image
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* @param integer $height The maximum height of the output image
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* @return Image
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*/
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public function FitMax($width, $height) {
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// Temporary $force_resample support for 3.x, to be removed in 4.0
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if (Config::inst()->get('Image', 'force_resample') && $this->getWidth() <= $width && $this->getHeight() <= $height) return $this->Fit($this->getWidth(),$this->getHeight());
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return $this->getWidth() > $width || $this->getHeight() > $height
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? $this->Fit($width,$height)
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: $this;
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}
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/**
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* Resize and crop image to fill specified dimensions.
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* Use in templates with $Fill
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*
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* @param integer $width Width to crop to
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* @param integer $height Height to crop to
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* @return Image|null
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*/
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public function Fill($width, $height) {
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return $this->isSize($width, $height) && !Config::inst()->get('Image', 'force_resample')
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? $this
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: $this->getFormattedImage('Fill', $width, $height);
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}
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/**
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* Resize and crop image to fill specified dimensions.
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* Use in templates with $Fill
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*
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* @param Image_Backend $backend
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* @param integer $width Width to crop to
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* @param integer $height Height to crop to
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* @return Image_Backend
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*/
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public function generateFill(Image_Backend $backend, $width, $height) {
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return $backend->croppedResize($width, $height);
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}
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/**
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* Crop this image to the aspect ratio defined by the specified width and height,
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* then scale down the image to those dimensions if it exceeds them.
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* Similar to Fill but without up-sampling. Use in templates with $FillMax.
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*
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* @uses Image::Fill()
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* @param integer $width The relative (used to determine aspect ratio) and maximum width of the output image
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* @param integer $height The relative (used to determine aspect ratio) and maximum height of the output image
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* @return Image
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*/
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public function FillMax($width, $height) {
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// Prevent divide by zero on missing/blank file
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if(!$this->getWidth() || !$this->getHeight()) return null;
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// Temporary $force_resample support for 3.x, to be removed in 4.0
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if (Config::inst()->get('Image', 'force_resample') && $this->isSize($width, $height)) return $this->Fill($width, $height);
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// Is the image already the correct size?
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if ($this->isSize($width, $height)) return $this;
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// If not, make sure the image isn't upsampled
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$imageRatio = $this->getWidth() / $this->getHeight();
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$cropRatio = $width / $height;
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// If cropping on the x axis compare heights
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if ($cropRatio < $imageRatio && $this->getHeight() < $height) return $this->Fill($this->getHeight()*$cropRatio, $this->getHeight());
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// Otherwise we're cropping on the y axis (or not cropping at all) so compare widths
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if ($this->getWidth() < $width) return $this->Fill($this->getWidth(), $this->getWidth()/$cropRatio);
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return $this->Fill($width, $height);
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}
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/**
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* Fit image to specified dimensions and fill leftover space with a solid colour (default white). Use in templates with $Pad.
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*
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* @param integer $width The width to size to
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* @param integer $height The height to size to
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* @return Image|null
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*/
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public function Pad($width, $height, $backgroundColor='FFFFFF') {
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return $this->isSize($width, $height) && !Config::inst()->get('Image', 'force_resample')
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? $this
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: $this->getFormattedImage('Pad', $width, $height, $backgroundColor);
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}
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/**
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* Fit image to specified dimensions and fill leftover space with a solid colour (default white). Use in templates with $Pad.
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*
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* @param Image_Backend $backend
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* @param integer $width The width to size to
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* @param integer $height The height to size to
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* @return Image_Backend
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*/
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public function generatePad(Image_Backend $backend, $width, $height, $backgroundColor='FFFFFF') {
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return $backend->paddedResize($width, $height, $backgroundColor);
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}
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/**
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* Scale image proportionally by width. Use in templates with $ScaleWidth.
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*
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* @param integer $width The width to set
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* @return Image|null
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*/
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public function ScaleWidth($width) {
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return $this->isWidth($width) && !Config::inst()->get('Image', 'force_resample')
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? $this
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: $this->getFormattedImage('ScaleWidth', $width);
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}
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/**
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* Scale image proportionally by width. Use in templates with $ScaleWidth.
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*
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* @param Image_Backend $backend
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* @param int $width The width to set
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* @return Image_Backend
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*/
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public function generateScaleWidth(Image_Backend $backend, $width) {
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return $backend->resizeByWidth($width);
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}
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/**
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* Proportionally scale down this image if it is wider than the specified width.
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* Similar to ScaleWidth but without up-sampling. Use in templates with $ScaleMaxWidth.
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*
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* @uses Image::ScaleWidth()
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* @param integer $width The maximum width of the output image
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* @return Image
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*/
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public function ScaleMaxWidth($width) {
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// Temporary $force_resample support for 3.x, to be removed in 4.0
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if (Config::inst()->get('Image', 'force_resample') && $this->getWidth() <= $width) return $this->ScaleWidth($this->getWidth());
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return $this->getWidth() > $width
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? $this->ScaleWidth($width)
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: $this;
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}
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/**
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* Scale image proportionally by height. Use in templates with $ScaleHeight.
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*
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* @param integer $height The height to set
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* @return Image|null
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*/
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public function ScaleHeight($height) {
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return $this->isHeight($height) && !Config::inst()->get('Image', 'force_resample')
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? $this
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: $this->getFormattedImage('ScaleHeight', $height);
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}
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/**
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* Scale image proportionally by height. Use in templates with $ScaleHeight.
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*
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* @param Image_Backend $backend
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* @param integer $height The height to set
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* @return Image_Backend
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*/
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public function generateScaleHeight(Image_Backend $backend, $height){
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return $backend->resizeByHeight($height);
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}
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/**
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* Proportionally scale down this image if it is taller than the specified height.
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* Similar to ScaleHeight but without up-sampling. Use in templates with $ScaleMaxHeight.
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*
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* @uses Image::ScaleHeight()
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* @param integer $height The maximum height of the output image
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* @return Image
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*/
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public function ScaleMaxHeight($height) {
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// Temporary $force_resample support for 3.x, to be removed in 4.0
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if (Config::inst()->get('Image', 'force_resample') && $this->getHeight() <= $height) return $this->ScaleHeight($this->getHeight());
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return $this->getHeight() > $height
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? $this->ScaleHeight($height)
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: $this;
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}
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|
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/**
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* Crop image on X axis if it exceeds specified width. Retain height.
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* Use in templates with $CropWidth. Example: $Image.ScaleHeight(100).$CropWidth(100)
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*
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* @uses Image::Fill()
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* @param integer $width The maximum width of the output image
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* @return Image
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*/
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public function CropWidth($width) {
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// Temporary $force_resample support for 3.x, to be removed in 4.0
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if (Config::inst()->get('Image', 'force_resample') && $this->getWidth() <= $width) return $this->Fill($this->getWidth(), $this->getHeight());
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return $this->getWidth() > $width
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? $this->Fill($width, $this->getHeight())
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: $this;
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}
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|
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/**
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* Crop image on Y axis if it exceeds specified height. Retain width.
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* Use in templates with $CropHeight. Example: $Image.ScaleWidth(100).CropHeight(100)
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*
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* @uses Image::Fill()
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* @param integer $height The maximum height of the output image
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* @return Image
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*/
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public function CropHeight($height) {
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// Temporary $force_resample support for 3.x, to be removed in 4.0
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if (Config::inst()->get('Image', 'force_resample') && $this->getHeight() <= $height) return $this->Fill($this->getWidth(), $this->getHeight());
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return $this->getHeight() > $height
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? $this->Fill($this->getWidth(), $height)
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: $this;
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}
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|
|
/**
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|
* Resize the image by preserving aspect ratio, keeping the image inside the
|
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* $width and $height
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*
|
|
* @param integer $width The width to size within
|
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* @param integer $height The height to size within
|
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* @return Image
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* @deprecated 4.0 Use Fit instead
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*/
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public function SetRatioSize($width, $height) {
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Deprecation::notice('4.0', 'Use Fit instead');
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return $this->Fit($width, $height);
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}
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|
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/**
|
|
* Resize the image by preserving aspect ratio, keeping the image inside the
|
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* $width and $height
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*
|
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* @param Image_Backend $backend
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* @param integer $width The width to size within
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* @param integer $height The height to size within
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* @return Image_Backend
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* @deprecated 4.0 Use generateFit instead
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*/
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public function generateSetRatioSize(Image_Backend $backend, $width, $height) {
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Deprecation::notice('4.0', 'Use generateFit instead');
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return $backend->resizeRatio($width, $height);
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}
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|
/**
|
|
* Resize this Image by width, keeping aspect ratio. Use in templates with $SetWidth.
|
|
*
|
|
* @param integer $width The width to set
|
|
* @return Image
|
|
* @deprecated 4.0 Use ScaleWidth instead
|
|
*/
|
|
public function SetWidth($width) {
|
|
Deprecation::notice('4.0', 'Use ScaleWidth instead');
|
|
return $this->ScaleWidth($width);
|
|
}
|
|
|
|
/**
|
|
* Resize this Image by width, keeping aspect ratio. Use in templates with $SetWidth.
|
|
*
|
|
* @param Image_Backend $backend
|
|
* @param int $width The width to set
|
|
* @return Image_Backend
|
|
* @deprecated 4.0 Use generateScaleWidth instead
|
|
*/
|
|
public function generateSetWidth(Image_Backend $backend, $width) {
|
|
Deprecation::notice('4.0', 'Use generateScaleWidth instead');
|
|
return $backend->resizeByWidth($width);
|
|
}
|
|
|
|
/**
|
|
* Resize this Image by height, keeping aspect ratio. Use in templates with $SetHeight.
|
|
*
|
|
* @param integer $height The height to set
|
|
* @return Image
|
|
* @deprecated 4.0 Use ScaleHeight instead
|
|
*/
|
|
public function SetHeight($height) {
|
|
Deprecation::notice('4.0', 'Use ScaleHeight instead');
|
|
return $this->ScaleHeight($height);
|
|
}
|
|
|
|
/**
|
|
* Resize this Image by height, keeping aspect ratio. Use in templates with $SetHeight.
|
|
*
|
|
* @param Image_Backend $backend
|
|
* @param integer $height The height to set
|
|
* @return Image_Backend
|
|
* @deprecated 4.0 Use generateScaleHeight instead
|
|
*/
|
|
public function generateSetHeight(Image_Backend $backend, $height){
|
|
Deprecation::notice('4.0', 'Use generateScaleHeight instead');
|
|
return $backend->resizeByHeight($height);
|
|
}
|
|
|
|
/**
|
|
* Resize this Image by both width and height, using padded resize. Use in templates with $SetSize.
|
|
* @see Image::PaddedImage()
|
|
*
|
|
* @param integer $width The width to size to
|
|
* @param integer $height The height to size to
|
|
* @return Image
|
|
* @deprecated 4.0 Use Pad instead
|
|
*/
|
|
public function SetSize($width, $height) {
|
|
Deprecation::notice('4.0', 'Use Pad instead');
|
|
return $this->Pad($width, $height);
|
|
}
|
|
|
|
/**
|
|
* Resize this Image by both width and height, using padded resize. Use in templates with $SetSize.
|
|
*
|
|
* @param Image_Backend $backend
|
|
* @param integer $width The width to size to
|
|
* @param integer $height The height to size to
|
|
* @return Image_Backend
|
|
* @deprecated 4.0 Use generatePad instead
|
|
*/
|
|
public function generateSetSize(Image_Backend $backend, $width, $height) {
|
|
Deprecation::notice('4.0', 'Use generatePad instead');
|
|
return $backend->paddedResize($width, $height);
|
|
}
|
|
|
|
/**
|
|
* Resize this image for the CMS. Use in templates with $CMSThumbnail
|
|
*
|
|
* @return Image_Cached|null
|
|
*/
|
|
public function CMSThumbnail() {
|
|
return $this->getFormattedImage('CMSThumbnail');
|
|
}
|
|
|
|
/**
|
|
* Resize this image for the CMS. Use in templates with $CMSThumbnail.
|
|
* @return Image_Backend
|
|
*/
|
|
public function generateCMSThumbnail(Image_Backend $backend) {
|
|
return $backend->paddedResize($this->stat('cms_thumbnail_width'),$this->stat('cms_thumbnail_height'));
|
|
}
|
|
|
|
/**
|
|
* Resize this image for preview in the Asset section. Use in templates with $AssetLibraryPreview.
|
|
* @return Image_Backend
|
|
*/
|
|
public function generateAssetLibraryPreview(Image_Backend $backend) {
|
|
return $backend->paddedResize($this->stat('asset_preview_width'),$this->stat('asset_preview_height'));
|
|
}
|
|
|
|
/**
|
|
* Resize this image for thumbnail in the Asset section. Use in templates with $AssetLibraryThumbnail.
|
|
* @return Image_Backend
|
|
*/
|
|
public function generateAssetLibraryThumbnail(Image_Backend $backend) {
|
|
return $backend->paddedResize($this->stat('asset_thumbnail_width'),$this->stat('asset_thumbnail_height'));
|
|
}
|
|
|
|
/**
|
|
* Resize this image for use as a thumbnail in a strip. Use in templates with $StripThumbnail.
|
|
* @return Image_Backend
|
|
*/
|
|
public function generateStripThumbnail(Image_Backend $backend) {
|
|
return $backend->croppedResize($this->stat('strip_thumbnail_width'),$this->stat('strip_thumbnail_height'));
|
|
}
|
|
|
|
/**
|
|
* Resize this Image by both width and height, using padded resize. Use in templates with $PaddedImage.
|
|
* @see Image::SetSize()
|
|
*
|
|
* @param integer $width The width to size to
|
|
* @param integer $height The height to size to
|
|
* @return Image
|
|
* @deprecated 4.0 Use Pad instead
|
|
*/
|
|
public function PaddedImage($width, $height, $backgroundColor='FFFFFF') {
|
|
Deprecation::notice('4.0', 'Use Pad instead');
|
|
return $this->Pad($width, $height, $backgroundColor);
|
|
}
|
|
|
|
/**
|
|
* Resize this Image by both width and height, using padded resize. Use in templates with $PaddedImage.
|
|
*
|
|
* @param Image_Backend $backend
|
|
* @param integer $width The width to size to
|
|
* @param integer $height The height to size to
|
|
* @return Image_Backend
|
|
* @deprecated 4.0 Use generatePad instead
|
|
*/
|
|
public function generatePaddedImage(Image_Backend $backend, $width, $height, $backgroundColor='FFFFFF') {
|
|
Deprecation::notice('4.0', 'Use generatePad instead');
|
|
return $backend->paddedResize($width, $height, $backgroundColor);
|
|
}
|
|
|
|
/**
|
|
* Determine if this image is of the specified size
|
|
*
|
|
* @param integer $width Width to check
|
|
* @param integer $height Height to check
|
|
* @return boolean
|
|
*/
|
|
public function isSize($width, $height) {
|
|
return $this->isWidth($width) && $this->isHeight($height);
|
|
}
|
|
|
|
/**
|
|
* Determine if this image is of the specified width
|
|
*
|
|
* @param integer $width Width to check
|
|
* @return boolean
|
|
*/
|
|
public function isWidth($width) {
|
|
return !empty($width) && $this->getWidth() == $width;
|
|
}
|
|
|
|
/**
|
|
* Determine if this image is of the specified width
|
|
*
|
|
* @param integer $height Height to check
|
|
* @return boolean
|
|
*/
|
|
public function isHeight($height) {
|
|
return !empty($height) && $this->getHeight() == $height;
|
|
}
|
|
|
|
/**
|
|
* Return an image object representing the image in the given format.
|
|
* This image will be generated using generateFormattedImage().
|
|
* The generated image is cached, to flush the cache append ?flush=1 to your URL.
|
|
*
|
|
* Just pass the correct number of parameters expected by the working function
|
|
*
|
|
* @param string $format The name of the format.
|
|
* @return Image_Cached|null
|
|
*/
|
|
public function getFormattedImage($format) {
|
|
$args = func_get_args();
|
|
|
|
if($this->exists()) {
|
|
$cacheFile = call_user_func_array(array($this, "cacheFilename"), $args);
|
|
|
|
if(!file_exists(Director::baseFolder()."/".$cacheFile) || self::$flush) {
|
|
call_user_func_array(array($this, "generateFormattedImage"), $args);
|
|
}
|
|
|
|
$cached = new Image_Cached($cacheFile, false, $this);
|
|
return $cached;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Return the filename for the cached image, given its format name and arguments.
|
|
* @param string $format The format name.
|
|
* @return string
|
|
* @throws InvalidArgumentException
|
|
*/
|
|
public function cacheFilename($format) {
|
|
$args = func_get_args();
|
|
array_shift($args);
|
|
|
|
// Note: $folder holds the *original* file, while the Image we're working with
|
|
// may be a formatted image in a child directory (this happens when we're chaining formats)
|
|
$folder = $this->ParentID ? $this->Parent()->Filename : ASSETS_DIR . "/";
|
|
|
|
$format = $format . Convert::base64url_encode($args);
|
|
$filename = $format . "/" . $this->Name;
|
|
|
|
$pattern = $this->getFilenamePatterns($this->Name);
|
|
|
|
// Any previous formats need to be derived from this Image's directory, and prepended to the new filename
|
|
$prepend = array();
|
|
preg_match_all($pattern['GeneratorPattern'], $this->Filename, $matches, PREG_SET_ORDER);
|
|
foreach($matches as $formatdir) {
|
|
$prepend[] = $formatdir[0];
|
|
}
|
|
$filename = implode($prepend) . $filename;
|
|
|
|
if (!preg_match($pattern['FullPattern'], $filename)) {
|
|
throw new InvalidArgumentException('Filename ' . $filename
|
|
. ' that should be used to cache a resized image is invalid');
|
|
}
|
|
|
|
return $folder . "_resampled/" . $filename;
|
|
}
|
|
|
|
/**
|
|
* Generate an image on the specified format. It will save the image
|
|
* at the location specified by cacheFilename(). The image will be generated
|
|
* using the specific 'generate' method for the specified format.
|
|
*
|
|
* @param string $format Name of the format to generate.
|
|
*/
|
|
public function generateFormattedImage($format) {
|
|
$args = func_get_args();
|
|
|
|
$cacheFile = call_user_func_array(array($this, "cacheFilename"), $args);
|
|
|
|
$backend = Injector::inst()->createWithArgs(self::config()->backend, array(
|
|
Director::baseFolder()."/" . $this->Filename,
|
|
$args
|
|
));
|
|
|
|
if($backend->hasImageResource()) {
|
|
|
|
$generateFunc = "generate$format";
|
|
if($this->hasMethod($generateFunc)){
|
|
|
|
array_shift($args);
|
|
array_unshift($args, $backend);
|
|
|
|
$backend = call_user_func_array(array($this, $generateFunc), $args);
|
|
if($backend){
|
|
$backend->writeTo(Director::baseFolder()."/" . $cacheFile);
|
|
}
|
|
|
|
} else {
|
|
user_error("Image::generateFormattedImage - Image $format public function not found.",E_USER_WARNING);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Generate a resized copy of this image with the given width & height.
|
|
* This can be used in templates with $ResizedImage but should be avoided,
|
|
* as it's the only image manipulation function which can skew an image.
|
|
*
|
|
* @param integer $width Width to resize to
|
|
* @param integer $height Height to resize to
|
|
* @return Image
|
|
*/
|
|
public function ResizedImage($width, $height) {
|
|
return $this->isSize($width, $height) && !Config::inst()->get('Image', 'force_resample')
|
|
? $this
|
|
: $this->getFormattedImage('ResizedImage', $width, $height);
|
|
}
|
|
|
|
/**
|
|
* Generate a resized copy of this image with the given width & height.
|
|
* Use in templates with $ResizedImage.
|
|
*
|
|
* @param Image_Backend $backend
|
|
* @param integer $width Width to resize to
|
|
* @param integer $height Height to resize to
|
|
* @return Image_Backend|null
|
|
*/
|
|
public function generateResizedImage(Image_Backend $backend, $width, $height) {
|
|
if(!$backend){
|
|
user_error("Image::generateFormattedImage - generateResizedImage is being called by legacy code"
|
|
. " or Image::\$backend is not set.",E_USER_WARNING);
|
|
}else{
|
|
return $backend->resize($width, $height);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Generate a resized copy of this image with the given width & height, cropping to maintain aspect ratio.
|
|
* Use in templates with $CroppedImage
|
|
*
|
|
* @param integer $width Width to crop to
|
|
* @param integer $height Height to crop to
|
|
* @return Image
|
|
* @deprecated 4.0 Use Fill instead
|
|
*/
|
|
public function CroppedImage($width, $height) {
|
|
Deprecation::notice('4.0', 'Use Fill instead');
|
|
return $this->Fill($width, $height);
|
|
}
|
|
|
|
/**
|
|
* Generate a resized copy of this image with the given width & height, cropping to maintain aspect ratio.
|
|
* Use in templates with $CroppedImage
|
|
*
|
|
* @param Image_Backend $backend
|
|
* @param integer $width Width to crop to
|
|
* @param integer $height Height to crop to
|
|
* @return Image_Backend
|
|
* @deprecated 4.0 Use generateFill instead
|
|
*/
|
|
public function generateCroppedImage(Image_Backend $backend, $width, $height) {
|
|
Deprecation::notice('4.0', 'Use generateFill instead');
|
|
return $backend->croppedResize($width, $height);
|
|
}
|
|
|
|
/**
|
|
* Generate patterns that will help to match filenames of cached images
|
|
* @param string $filename Filename of source image
|
|
* @return array
|
|
*/
|
|
private function getFilenamePatterns($filename) {
|
|
$methodNames = $this->allMethodNames(true);
|
|
$generateFuncs = array();
|
|
foreach($methodNames as $methodName) {
|
|
if(substr($methodName, 0, 8) == 'generate') {
|
|
$format = substr($methodName, 8);
|
|
$generateFuncs[] = preg_quote($format);
|
|
}
|
|
}
|
|
// All generate functions may appear any number of times in the image cache name.
|
|
$generateFuncs = implode('|', $generateFuncs);
|
|
$base64url_match = "[a-zA-Z0-9_~]*={0,2}";
|
|
return array(
|
|
'FullPattern' => "/^((?P<Generator>{$generateFuncs})(?P<Args>" . $base64url_match . ")\/)+"
|
|
. preg_quote($filename) . "$/i",
|
|
'GeneratorPattern' => "/(?P<Generator>{$generateFuncs})(?P<Args>" . $base64url_match . ")\//i"
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Generate a list of images that were generated from this image
|
|
*/
|
|
private function getGeneratedImages() {
|
|
$generatedImages = array();
|
|
$cachedFiles = array();
|
|
|
|
$folder = $this->ParentID ? $this->Parent()->Filename : ASSETS_DIR . '/';
|
|
$cacheDir = Director::getAbsFile($folder . '_resampled/');
|
|
|
|
// Find all paths with the same filename as this Image (the path contains the transformation info)
|
|
if(is_dir($cacheDir)) {
|
|
$files = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($cacheDir));
|
|
foreach($files as $path => $file){
|
|
if ($file->getFilename() == $this->Name) {
|
|
$cachedFiles[] = $path;
|
|
}
|
|
}
|
|
}
|
|
|
|
$pattern = $this->getFilenamePatterns($this->Name);
|
|
|
|
// Reconstruct the image transformation(s) from the format-folder(s) in the path
|
|
// (if chained, they contain the transformations in the correct order)
|
|
foreach($cachedFiles as $cf_path) {
|
|
preg_match_all($pattern['GeneratorPattern'], $cf_path, $matches, PREG_SET_ORDER);
|
|
|
|
$generatorArray = array();
|
|
foreach ($matches as $singleMatch) {
|
|
$generatorArray[] = array(
|
|
'Generator' => $singleMatch['Generator'],
|
|
'Args' => Convert::base64url_decode($singleMatch['Args'])
|
|
);
|
|
}
|
|
|
|
$generatedImages[] = array(
|
|
'FileName' => $cf_path,
|
|
'Generators' => $generatorArray
|
|
);
|
|
}
|
|
|
|
return $generatedImages;
|
|
}
|
|
|
|
/**
|
|
* Regenerate all of the formatted cached images for this image.
|
|
*
|
|
* @return int The number of formatted images regenerated
|
|
*/
|
|
public function regenerateFormattedImages() {
|
|
if(!$this->Filename) return 0;
|
|
|
|
// Without this, not a single file would be written
|
|
// caused by a check in getFormattedImage()
|
|
$this->flush();
|
|
|
|
$numGenerated = 0;
|
|
$generatedImages = $this->getGeneratedImages();
|
|
$doneList = array();
|
|
foreach($generatedImages as $singleImage) {
|
|
$cachedImage = $this;
|
|
if (in_array($singleImage['FileName'], $doneList) ) continue;
|
|
|
|
foreach($singleImage['Generators'] as $singleGenerator) {
|
|
$args = array_merge(array($singleGenerator['Generator']), $singleGenerator['Args']);
|
|
$cachedImage = call_user_func_array(array($cachedImage, "getFormattedImage"), $args);
|
|
}
|
|
$doneList[] = $singleImage['FileName'];
|
|
$numGenerated++;
|
|
}
|
|
|
|
return $numGenerated;
|
|
}
|
|
|
|
/**
|
|
* Remove all of the formatted cached images for this image.
|
|
*
|
|
* @return int The number of formatted images deleted
|
|
*/
|
|
public function deleteFormattedImages() {
|
|
if(!$this->Filename) return 0;
|
|
|
|
$numDeleted = 0;
|
|
$generatedImages = $this->getGeneratedImages();
|
|
foreach($generatedImages as $singleImage) {
|
|
$path = $singleImage['FileName'];
|
|
unlink($path);
|
|
$numDeleted++;
|
|
do {
|
|
$path = dirname($path);
|
|
}
|
|
// remove the folder if it's empty (and it's not the assets folder)
|
|
while(!preg_match('/assets$/', $path) && Filesystem::remove_folder_if_empty($path));
|
|
}
|
|
|
|
return $numDeleted;
|
|
}
|
|
|
|
/**
|
|
* Get the dimensions of this Image.
|
|
* @param string $dim If this is equal to "string", return the dimensions in string form,
|
|
* if it is 0 return the height, if it is 1 return the width.
|
|
* @return string|int|null
|
|
*/
|
|
public function getDimensions($dim = "string") {
|
|
if($this->getField('Filename')) {
|
|
|
|
$imagefile = $this->getFullPath();
|
|
if($this->exists()) {
|
|
$size = getimagesize($imagefile);
|
|
return ($dim === "string") ? "$size[0]x$size[1]" : $size[$dim];
|
|
} else {
|
|
return ($dim === "string") ? "file '$imagefile' not found" : null;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get the width of this image.
|
|
* @return int
|
|
*/
|
|
public function getWidth() {
|
|
return $this->getDimensions(0);
|
|
}
|
|
|
|
/**
|
|
* Get the height of this image.
|
|
* @return int
|
|
*/
|
|
public function getHeight() {
|
|
return $this->getDimensions(1);
|
|
}
|
|
|
|
/**
|
|
* Get the orientation of this image.
|
|
* @return ORIENTATION_SQUARE | ORIENTATION_PORTRAIT | ORIENTATION_LANDSCAPE
|
|
*/
|
|
public function getOrientation() {
|
|
$width = $this->getWidth();
|
|
$height = $this->getHeight();
|
|
if($width > $height) {
|
|
return self::ORIENTATION_LANDSCAPE;
|
|
} elseif($height > $width) {
|
|
return self::ORIENTATION_PORTRAIT;
|
|
} else {
|
|
return self::ORIENTATION_SQUARE;
|
|
}
|
|
}
|
|
|
|
public function onAfterUpload() {
|
|
$this->deleteFormattedImages();
|
|
parent::onAfterUpload();
|
|
}
|
|
|
|
protected function onBeforeDelete() {
|
|
$backend = Injector::inst()->create(self::get_backend());
|
|
$backend->onBeforeDelete($this);
|
|
|
|
$this->deleteFormattedImages();
|
|
|
|
parent::onBeforeDelete();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* A resized / processed {@link Image} object.
|
|
* When Image object are processed or resized, a suitable Image_Cached object is returned, pointing to the
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* cached copy of the processed image.
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*
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* @package framework
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* @subpackage filesystem
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*/
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class Image_Cached extends Image {
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/**
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* Create a new cached image.
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* @param string $filename The filename of the image.
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* @param boolean $isSingleton This this to true if this is a singleton() object, a stub for calling methods.
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* Singletons don't have their defaults set.
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*/
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public function __construct($filename = null, $isSingleton = false, Image $sourceImage = null) {
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parent::__construct(array(), $isSingleton);
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if ($sourceImage) {
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// Copy properties from source image, except unsafe ones
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$properties = $sourceImage->toMap();
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unset($properties['RecordClassName'], $properties['ClassName']);
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$this->update($properties);
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}
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$this->ID = -1;
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$this->Filename = $filename;
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}
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/**
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* Override the parent's exists method becuase the ID is explicitly set to -1 on a cached image we can't use the
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* default check
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*
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* @return bool Whether the cached image exists
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*/
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public function exists() {
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return file_exists($this->getFullPath());
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}
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public function getRelativePath() {
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return $this->getField('Filename');
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}
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|
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/**
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* Prevent creating new tables for the cached record
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*
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* @return false
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*/
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public function requireTable() {
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return false;
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}
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|
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/**
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* Prevent writing the cached image to the database
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*
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* @throws Exception
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*/
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public function write($showDebug = false, $forceInsert = false, $forceWrite = false, $writeComponents = false) {
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throw new Exception("{$this->ClassName} can not be written back to the database.");
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}
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|
}
|