}
/**
- * Get image file contents
+ * Get image file content
*
* @return mixed
*/
* If null, we'll use the source image. Defaults to null
* @param array $cropping Cropping properties
*
- * @return void|false
+ * @return boolean
*/
private function resizeImage($source, $ext, $dest = null, $cropping = null)
{
$class = get_class($this);
- if (function_exists("gd_info")) {
- $gdinfo = gd_info();
- $h = $this->max_height;
- $w = $this->max_width;
- if ($dest == null) {
- $dest = $source;
- }
+ if (!function_exists("gd_info")) {
+ Analog::log(
+ '[' . $class . '] GD is not present - ' .
+ 'pictures could not be resized!',
+ Analog::ERROR
+ );
+ return false;
+ }
- switch (strtolower($ext)) {
- case 'jpg':
- if (!$gdinfo['JPEG Support']) {
- Analog::log(
- '[' . $class . '] GD has no JPEG Support - ' .
- 'pictures could not be resized!',
- Analog::ERROR
- );
- return false;
- }
- break;
- case 'png':
- if (!$gdinfo['PNG Support']) {
- Analog::log(
- '[' . $class . '] GD has no PNG Support - ' .
- 'pictures could not be resized!',
- Analog::ERROR
- );
- return false;
- }
- break;
- case 'gif':
- if (!$gdinfo['GIF Create Support']) {
- Analog::log(
- '[' . $class . '] GD has no GIF Support - ' .
- 'pictures could not be resized!',
- Analog::ERROR
- );
- return false;
- }
- break;
- case 'webp':
- if (!$gdinfo['WebP Support']) {
- Analog::log(
- '[' . $class . '] GD has no WebP Support - ' .
- 'pictures could not be resized!',
- Analog::ERROR
- );
- return false;
- }
- break;
+ $gdinfo = gd_info();
+ $h = $this->max_height;
+ $w = $this->max_width;
+ if ($dest == null) {
+ $dest = $source;
+ }
- default:
+ switch (strtolower($ext)) {
+ case 'jpg':
+ if (!$gdinfo['JPEG Support']) {
+ Analog::log(
+ '[' . $class . '] GD has no JPEG Support - ' .
+ 'pictures could not be resized!',
+ Analog::ERROR
+ );
return false;
- }
-
- list($cur_width, $cur_height, $cur_type, $curattr)
- = getimagesize($source);
-
- $ratio = $cur_width / $cur_height;
-
- // Define cropping variables if necessary.
- $thumb_cropped = false;
- // Cropping is based on the smallest side of the source in order to
- // provide as less focusing options as possible if the source doesn't
- // fit the final ratio (center, top, bottom, left, right).
- $min_size = min($cur_width, $cur_height);
- // Cropping dimensions.
- $crop_width = $min_size;
- $crop_height = $min_size;
- // Cropping focus.
- $crop_x = 0;
- $crop_y = 0;
- if (isset($cropping['ratio']) && isset($cropping['focus'])) {
- // Calculate cropping dimensions
- switch ($cropping['ratio']) {
- case 'portrait_ratio':
- // Calculate cropping dimensions
- if ($ratio < 1) {
- $crop_height = ceil($crop_width * 4 / 3);
- } else {
- $crop_width = ceil($crop_height * 3 / 4);
- }
- // Calculate resizing dimensions
- $w = ceil($h * 3 / 4);
- break;
- case 'landscape_ratio':
- // Calculate cropping dimensions
- if ($ratio > 1) {
- $crop_width = ceil($crop_height * 4 / 3);
- } else {
- $crop_height = ceil($crop_width * 3 / 4);
- }
- // Calculate resizing dimensions
- $h = ceil($w * 3 / 4);
- break;
}
- // Calculate focus coordinates
- switch ($cropping['focus']) {
- case 'center':
- if ($ratio > 1) {
- $crop_x = ceil(($cur_width - $crop_width) / 2);
- } elseif ($ratio == 1) {
- $crop_x = ceil(($cur_width - $crop_width) / 2);
- $crop_y = ceil(($cur_height - $crop_height) / 2);
- } else {
- $crop_y = ceil(($cur_height - $crop_height) / 2);
- }
- break;
- case 'top':
- $crop_x = ceil(($cur_width - $crop_width) / 2);
- break;
- case 'bottom':
- $crop_y = $cur_height - $crop_height;
- break;
- case 'right':
- $crop_x = $cur_width - $crop_width;
- break;
+ break;
+ case 'png':
+ if (!$gdinfo['PNG Support']) {
+ Analog::log(
+ '[' . $class . '] GD has no PNG Support - ' .
+ 'pictures could not be resized!',
+ Analog::ERROR
+ );
+ return false;
}
- // Cropped image.
- $thumb_cropped = imagecreatetruecolor($crop_width, $crop_height);
- // Cropped ratio.
- $ratio = $crop_width / $crop_height;
- // Otherwise, calculate image size according to the source's ratio.
- } else {
- if ($cur_width > $cur_height) {
- $h = round($w / $ratio);
- } else {
- $w = round($h * $ratio);
+ break;
+ case 'gif':
+ if (!$gdinfo['GIF Create Support']) {
+ Analog::log(
+ '[' . $class . '] GD has no GIF Support - ' .
+ 'pictures could not be resized!',
+ Analog::ERROR
+ );
+ return false;
}
- }
+ break;
+ case 'webp':
+ if (!$gdinfo['WebP Support']) {
+ Analog::log(
+ '[' . $class . '] GD has no WebP Support - ' .
+ 'pictures could not be resized!',
+ Analog::ERROR
+ );
+ return false;
+ }
+ break;
+
+ default:
+ return false;
+ }
- // Resized image.
- $thumb = imagecreatetruecolor($w, $h);
-
- $image = false;
- switch ($ext) {
- case 'jpg':
- $image = imagecreatefromjpeg($source);
- // Crop
- if ($thumb_cropped !== false) {
- // First, crop.
- imagecopyresampled($thumb_cropped, $image, 0, 0, $crop_x, $crop_y, $cur_width, $cur_height, $cur_width, $cur_height);
- // Then, resize.
- imagecopyresampled($thumb, $thumb_cropped, 0, 0, 0, 0, $w, $h, $crop_width, $crop_height);
- // Resize
+ list($cur_width, $cur_height, $cur_type, $curattr)
+ = getimagesize($source);
+
+ $ratio = $cur_width / $cur_height;
+
+ // Define cropping variables if necessary.
+ $thumb_cropped = false;
+ // Cropping is based on the smallest side of the source in order to
+ // provide as less focusing options as possible if the source doesn't
+ // fit the final ratio (center, top, bottom, left, right).
+ $min_size = min($cur_width, $cur_height);
+ // Cropping dimensions.
+ $crop_width = $min_size;
+ $crop_height = $min_size;
+ // Cropping focus.
+ $crop_x = 0;
+ $crop_y = 0;
+ if (isset($cropping['ratio']) && isset($cropping['focus'])) {
+ // Calculate cropping dimensions
+ switch ($cropping['ratio']) {
+ case 'portrait_ratio':
+ // Calculate cropping dimensions
+ if ($ratio < 1) {
+ $crop_height = ceil($crop_width * 4 / 3);
} else {
- imagecopyresampled($thumb, $image, 0, 0, 0, 0, $w, $h, $cur_width, $cur_height);
+ $crop_width = ceil($crop_height * 3 / 4);
}
- imagejpeg($thumb, $dest);
+ // Calculate resizing dimensions
+ $w = ceil($h * 3 / 4);
break;
- case 'png':
- $image = imagecreatefrompng($source);
- // Turn off alpha blending and set alpha flag. That prevent alpha
- // transparency to be saved as an arbitrary color (black in my tests)
- imagealphablending($image, false);
- imagesavealpha($image, true);
- imagealphablending($thumb, false);
- imagesavealpha($thumb, true);
- // Crop
- if ($thumb_cropped !== false) {
- imagealphablending($thumb_cropped, false);
- imagesavealpha($thumb_cropped, true);
- // First, crop.
- imagecopyresampled($thumb_cropped, $image, 0, 0, $crop_x, $crop_y, $cur_width, $cur_height, $cur_width, $cur_height);
- // Then, resize.
- imagecopyresampled($thumb, $thumb_cropped, 0, 0, 0, 0, $w, $h, $crop_width, $crop_height);
- // Resize
+ case 'landscape_ratio':
+ // Calculate cropping dimensions
+ if ($ratio > 1) {
+ $crop_width = ceil($crop_height * 4 / 3);
} else {
- imagecopyresampled($thumb, $image, 0, 0, 0, 0, $w, $h, $cur_width, $cur_height);
+ $crop_height = ceil($crop_width * 3 / 4);
}
- imagepng($thumb, $dest);
+ // Calculate resizing dimensions
+ $h = ceil($w * 3 / 4);
break;
- case 'gif':
- $image = imagecreatefromgif($source);
- // Crop
- if ($thumb_cropped !== false) {
- // First, crop.
- imagecopyresampled($thumb_cropped, $image, 0, 0, $crop_x, $crop_y, $cur_width, $cur_height, $cur_width, $cur_height);
- // Then, resize.
- imagecopyresampled($thumb, $thumb_cropped, 0, 0, 0, 0, $w, $h, $crop_width, $crop_height);
- // Resize
+ }
+ // Calculate focus coordinates
+ switch ($cropping['focus']) {
+ case 'center':
+ if ($ratio > 1) {
+ $crop_x = ceil(($cur_width - $crop_width) / 2);
+ } elseif ($ratio == 1) {
+ $crop_x = ceil(($cur_width - $crop_width) / 2);
+ $crop_y = ceil(($cur_height - $crop_height) / 2);
} else {
- imagecopyresampled($thumb, $image, 0, 0, 0, 0, $w, $h, $cur_width, $cur_height);
+ $crop_y = ceil(($cur_height - $crop_height) / 2);
}
- imagegif($thumb, $dest);
break;
- case 'webp':
- $image = imagecreatefromwebp($source);
- // Crop
- if ($thumb_cropped !== false) {
- // First, crop.
- imagecopyresampled($thumb_cropped, $image, 0, 0, $crop_x, $crop_y, $cur_width, $cur_height, $cur_width, $cur_height);
- // Then, resize.
- imagecopyresampled($thumb, $thumb_cropped, 0, 0, 0, 0, $w, $h, $crop_width, $crop_height);
- // Resize
- } else {
- imagecopyresampled($thumb, $image, 0, 0, 0, 0, $w, $h, $cur_width, $cur_height);
- }
- imagewebp($thumb, $dest);
+ case 'top':
+ $crop_x = ceil(($cur_width - $crop_width) / 2);
+ break;
+ case 'bottom':
+ $crop_y = $cur_height - $crop_height;
+ break;
+ case 'right':
+ $crop_x = $cur_width - $crop_width;
break;
}
+ // Cropped image.
+ $thumb_cropped = imagecreatetruecolor($crop_width, $crop_height);
+ // Cropped ratio.
+ $ratio = $crop_width / $crop_height;
+ // Otherwise, calculate image size according to the source's ratio.
} else {
- Analog::log(
- '[' . $class . '] GD is not present - ' .
- 'pictures could not be resized!',
- Analog::ERROR
- );
+ if ($cur_width > $cur_height) {
+ $h = round($w / $ratio);
+ } else {
+ $w = round($h * $ratio);
+ }
+ }
+
+ // Resized image.
+ $thumb = imagecreatetruecolor($w, $h);
+
+ $image = false;
+ switch ($ext) {
+ case 'jpg':
+ $image = imagecreatefromjpeg($source);
+ // Crop
+ if ($thumb_cropped !== false) {
+ // First, crop.
+ imagecopyresampled($thumb_cropped, $image, 0, 0, $crop_x, $crop_y, $cur_width, $cur_height, $cur_width, $cur_height);
+ // Then, resize.
+ imagecopyresampled($thumb, $thumb_cropped, 0, 0, 0, 0, $w, $h, $crop_width, $crop_height);
+ // Resize
+ } else {
+ imagecopyresampled($thumb, $image, 0, 0, 0, 0, $w, $h, $cur_width, $cur_height);
+ }
+ imagejpeg($thumb, $dest);
+ break;
+ case 'png':
+ $image = imagecreatefrompng($source);
+ // Turn off alpha blending and set alpha flag. That prevent alpha
+ // transparency to be saved as an arbitrary color (black in my tests)
+ imagealphablending($image, false);
+ imagesavealpha($image, true);
+ imagealphablending($thumb, false);
+ imagesavealpha($thumb, true);
+ // Crop
+ if ($thumb_cropped !== false) {
+ imagealphablending($thumb_cropped, false);
+ imagesavealpha($thumb_cropped, true);
+ // First, crop.
+ imagecopyresampled($thumb_cropped, $image, 0, 0, $crop_x, $crop_y, $cur_width, $cur_height, $cur_width, $cur_height);
+ // Then, resize.
+ imagecopyresampled($thumb, $thumb_cropped, 0, 0, 0, 0, $w, $h, $crop_width, $crop_height);
+ // Resize
+ } else {
+ imagecopyresampled($thumb, $image, 0, 0, 0, 0, $w, $h, $cur_width, $cur_height);
+ }
+ imagepng($thumb, $dest);
+ break;
+ case 'gif':
+ $image = imagecreatefromgif($source);
+ // Crop
+ if ($thumb_cropped !== false) {
+ // First, crop.
+ imagecopyresampled($thumb_cropped, $image, 0, 0, $crop_x, $crop_y, $cur_width, $cur_height, $cur_width, $cur_height);
+ // Then, resize.
+ imagecopyresampled($thumb, $thumb_cropped, 0, 0, 0, 0, $w, $h, $crop_width, $crop_height);
+ // Resize
+ } else {
+ imagecopyresampled($thumb, $image, 0, 0, 0, 0, $w, $h, $cur_width, $cur_height);
+ }
+ imagegif($thumb, $dest);
+ break;
+ case 'webp':
+ $image = imagecreatefromwebp($source);
+ // Crop
+ if ($thumb_cropped !== false) {
+ // First, crop.
+ imagecopyresampled($thumb_cropped, $image, 0, 0, $crop_x, $crop_y, $cur_width, $cur_height, $cur_width, $cur_height);
+ // Then, resize.
+ imagecopyresampled($thumb, $thumb_cropped, 0, 0, 0, 0, $w, $h, $crop_width, $crop_height);
+ // Resize
+ } else {
+ imagecopyresampled($thumb, $image, 0, 0, 0, 0, $w, $h, $cur_width, $cur_height);
+ }
+ imagewebp($thumb, $dest);
+ break;
}
+
+ return true;
}
/**
Projects / galette.git / blobdiff