+ //Return image data
+ return [
+ 'og:image' => $this->router->generate('rapsyspack_facebook', ['hash' => $hash, 'path' => $short, 'height' => $height, 'width' => $width, 'u' => $mtime, '_format' => $this->config['facebook']['format']], UrlGeneratorInterface::ABSOLUTE_URL),
+ 'og:image:alt' => str_replace("\n", ' ', implode(' - ', array_keys($texts))),
+ 'og:image:height' => $height,
+ 'og:image:width' => $width
+ ];
+ }
+
+ //Set cache path
+ $cache = $this->config['cache'].'/'.$this->config['prefixes']['facebook'].$path.'.png';
+
+ //Without cache path
+ if (!is_dir($dir = dirname($cache))) {
+ //Create filesystem object
+ $filesystem = new Filesystem();
+
+ try {
+ //Create path
+ //XXX: set as 0775, symfony umask (0022) will reduce rights (0755)
+ $filesystem->mkdir($dir, 0775);
+ } catch (IOExceptionInterface $e) {
+ //Throw error
+ throw new \Exception(sprintf('Output directory "%s" do not exists and unable to create it', $dir), 0, $e);
+ }
+ }
+
+ //Create image object
+ $image = new \Imagick();
+
+ //Without cache image
+ if (!is_file($cache) || stat($cache)['mtime'] < stat($source)['mtime']) {
+ //Check target directory
+ if (!is_dir($dir = dirname($cache))) {
+ //Create filesystem object
+ $filesystem = new Filesystem();
+
+ try {
+ //Create dir
+ //XXX: set as 0775, symfony umask (0022) will reduce rights (0755)
+ $filesystem->mkdir($dir, 0775);
+ } catch (IOExceptionInterface $e) {
+ //Throw error
+ throw new \Exception(sprintf('Output directory "%s" do not exists and unable to create it', $dir), 0, $e);
+ }
+ }
+
+ //Without source
+ if (!is_file($source)) {
+ //Throw error
+ throw new \Exception(sprintf('Source file "%s" do not exists', $source));
+ }
+
+ //Convert to absolute path
+ $source = realpath($source);
+
+ //Read image
+ //XXX: Imagick::readImage only supports absolute path
+ $image->readImage($source);
+
+ //Crop using aspect ratio
+ //XXX: for better result upload image directly in aspect ratio :)
+ $image->cropThumbnailImage($width, $height);
+
+ //Strip image exif data and properties
+ $image->stripImage();
+
+ //Save cache image
+ if (!$image->writeImage($cache)) {
+ //Throw error
+ throw new \Exception(sprintf('Unable to write image "%s"', $cache));
+ }
+ //With cache
+ } else {
+ //Read image
+ $image->readImage($cache);
+ }
+
+ //Create draw
+ $draw = new \ImagickDraw();
+
+ //Set stroke antialias
+ $draw->setStrokeAntialias(true);
+
+ //Set text antialias
+ $draw->setTextAntialias(true);
+
+ //Set align aliases
+ $aligns = [
+ 'left' => \Imagick::ALIGN_LEFT,
+ 'center' => \Imagick::ALIGN_CENTER,
+ 'right' => \Imagick::ALIGN_RIGHT
+ ];
+
+ //Init counter
+ $i = 1;
+
+ //Set text count
+ $count = count($texts);
+
+ //Draw each text stroke
+ foreach($texts as $text => $data) {
+ //Set font
+ $draw->setFont($this->config['fonts'][$data['font']??$this->config['facebook']['font']]);
+
+ //Set font size
+ $draw->setFontSize($data['size']??$this->config['facebook']['size']);
+
+ //Set stroke width
+ $draw->setStrokeWidth($data['thickness']??$this->config['facebook']['thickness']);
+
+ //Set text alignment
+ $draw->setTextAlignment($align = ($aligns[$data['align']??$this->config['facebook']['align']]));
+
+ //Get font metrics
+ $metrics = $image->queryFontMetrics($draw, $text);
+
+ //Without y
+ if (empty($data['y'])) {
+ //Position verticaly each text evenly
+ $texts[$text]['y'] = $data['y'] = (($height + 100) / (count($texts) + 1) * $i) - 50;
+ }
+
+ //Without x
+ if (empty($data['x'])) {
+ if ($align == \Imagick::ALIGN_CENTER) {
+ $texts[$text]['x'] = $data['x'] = $width/2;
+ } elseif ($align == \Imagick::ALIGN_LEFT) {
+ $texts[$text]['x'] = $data['x'] = 50;
+ } elseif ($align == \Imagick::ALIGN_RIGHT) {
+ $texts[$text]['x'] = $data['x'] = $width - 50;
+ }
+ }
+
+ //Center verticaly
+ //XXX: add ascender part then center it back by half of textHeight
+ //TODO: maybe add a boundingbox ???
+ $texts[$text]['y'] = $data['y'] += $metrics['ascender'] - $metrics['textHeight']/2;
+
+ //Set stroke color
+ $draw->setStrokeColor(new \ImagickPixel($data['border']??$this->config['facebook']['border']));
+
+ //Set fill color
+ $draw->setFillColor(new \ImagickPixel($data['fill']??$this->config['facebook']['fill']));
+
+ //Add annotation
+ $draw->annotation($data['x'], $data['y'], $text);
+
+ //Increase counter
+ $i++;
+ }
+
+ //Create stroke object
+ $stroke = new \Imagick();
+
+ //Add new image
+ $stroke->newImage($width, $height, new \ImagickPixel('transparent'));
+
+ //Draw on image
+ $stroke->drawImage($draw);
+
+ //Blur image
+ //XXX: blur the stroke canvas only
+ $stroke->blurImage(5,3);
+
+ //Set opacity to 0.5
+ //XXX: see https://www.php.net/manual/en/image.evaluateimage.php
+ $stroke->evaluateImage(\Imagick::EVALUATE_DIVIDE, 1.5, \Imagick::CHANNEL_ALPHA);
+
+ //Compose image
+ $image->compositeImage($stroke, \Imagick::COMPOSITE_OVER, 0, 0);
+
+ //Clear stroke
+ $stroke->clear();
+
+ //Destroy stroke
+ unset($stroke);
Rapsys Git / packbundle / blobdiff