diff options
Diffstat (limited to 'program/include/rcube_image.php')
| -rw-r--r-- | program/include/rcube_image.php | 87 |
1 files changed, 83 insertions, 4 deletions
diff --git a/program/include/rcube_image.php b/program/include/rcube_image.php index 21cb5f136..80e8bd4f3 100644 --- a/program/include/rcube_image.php +++ b/program/include/rcube_image.php @@ -13,7 +13,7 @@ | See the README file for a full license statement. | | | | PURPOSE: | - | Image resizer | + | Image resizer and converter | | | +-----------------------------------------------------------------------+ | Author: Thomas Bruederli <roundcube@gmail.com> | @@ -25,6 +25,19 @@ class rcube_image { private $image_file; + const TYPE_GIF = 1; + const TYPE_JPG = 2; + const TYPE_PNG = 3; + const TYPE_TIF = 4; + + public static $extensions = array( + self::TYPE_GIF => 'gif', + self::TYPE_JPG => 'jpg', + self::TYPE_PNG => 'png', + self::TYPE_TIF => 'tif', + ); + + function __construct($filename) { $this->image_file = $filename; @@ -66,7 +79,7 @@ class rcube_image * @param int $size Max width/height size * @param string $filename Output filename * - * @return Success of convert as true/false + * @return bool True on success, False on failure */ public function resize($size, $filename = null) { @@ -95,10 +108,10 @@ class rcube_image $p['-opts'] = array('-resize' => $size.'>'); if (in_array($type, explode(',', $p['types']))) { // Valid type? - $result = rcube::exec($convert . ' 2>&1 -flatten -auto-orient -colorspace RGB -quality {quality} {-opts} {in} {type}:{out}', $p) === ''; + $result = rcube::exec($convert . ' 2>&1 -flatten -auto-orient -colorspace RGB -quality {quality} {-opts} {in} {type}:{out}', $p); } - if ($result) { + if ($result === '') { return true; } } @@ -148,6 +161,71 @@ class rcube_image } } + // @TODO: print error to the log? + return false; + } + + /** + * Convert image to a given type + * + * @param int $type Destination file type (see class constants) + * @param string $filename Output filename (if empty, original file will be used + * and filename extension will be modified) + * + * @return bool True on success, False on failure + */ + public function convert($type, $filename = null) + { + $rcube = rcube::get_instance(); + $convert = $rcube->config->get('im_convert_path', false); + + if (!$filename) { + $filename = $this->image_file; + + // modify extension + if ($extension = self::$extensions[$type]) { + $filename = preg_replace('/\.[^.]+$/', '', $filename) . '.' . $extension; + } + } + + // use ImageMagick + if ($convert) { + $p['in'] = $this->image_file; + $p['out'] = $filename; + $p['type'] = self::$extensions[$type]; + + $result = rcube::exec($convert . ' 2>&1 -colorspace RGB -quality 75 {in} {type}:{out}', $p); + + if ($result === '') { + return true; + } + } + + // use GD extension (TIFF isn't supported) + $props = $this->props(); + $gd_types = array(IMAGETYPE_JPEG, IMAGETYPE_GIF, IMAGETYPE_PNG); + + if ($props['gd_type'] && in_array($props['gd_type'], $gd_types)) { + if ($props['gd_type'] == IMAGETYPE_JPEG) { + $image = imagecreatefromjpeg($this->image_file); + } + else if ($props['gd_type'] == IMAGETYPE_GIF) { + $image = imagecreatefromgif($this->image_file); + } + else if ($props['gd_type'] == IMAGETYPE_PNG) { + $image = imagecreatefrompng($this->image_file); + } + + if ($type == self::TYPE_JPG) { + $result = imagejpeg($image, $filename, 75); + } + else if ($type == self::TYPE_GIF) { + $result = imagegif($image, $filename); + } + else if ($type == self::TYPE_PNG) { + $result = imagepng($image, $filename, 6, PNG_ALL_FILTERS); + } + } // @TODO: print error to the log? return false; @@ -169,4 +247,5 @@ class rcube_image } } } + } |