From ba6f21caeb405c7e8512a09941fefbc97286e45f Mon Sep 17 00:00:00 2001 From: Aleksander Machniak Date: Wed, 21 Nov 2012 19:52:03 +0100 Subject: Framework files moved to lib/Roundcube --- program/lib/Roundcube/rcube_image.php | 268 ++++++++++++++++++++++++++++++++++ 1 file changed, 268 insertions(+) create mode 100644 program/lib/Roundcube/rcube_image.php (limited to 'program/lib/Roundcube/rcube_image.php') diff --git a/program/lib/Roundcube/rcube_image.php b/program/lib/Roundcube/rcube_image.php new file mode 100644 index 000000000..b72a24c51 --- /dev/null +++ b/program/lib/Roundcube/rcube_image.php @@ -0,0 +1,268 @@ + | + | Author: Aleksander Machniak | + +-----------------------------------------------------------------------+ +*/ + +/** + * Image resizer and converter + * + * @package Framework + * @subpackage Utils + */ +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 = $filename; + } + + /** + * Get image properties. + * + * @return mixed Hash array with image props like type, width, height + */ + public function props() + { + // use GD extension + if (function_exists('getimagesize') && ($imsize = @getimagesize($this->image_file))) { + $width = $imsize[0]; + $height = $imsize[1]; + $gd_type = $imsize['2']; + $type = image_type_to_extension($imsize['2'], false); + } + + // use ImageMagick + if (!$type && ($data = $this->identify())) { + list($type, $width, $height) = $data; + } + + if ($type) { + return array( + 'type' => $type, + 'gd_type' => $gd_type, + 'width' => $width, + 'height' => $height, + ); + } + } + + /** + * Resize image to a given size + * + * @param int $size Max width/height size + * @param string $filename Output filename + * @param boolean $browser_compat Convert to image type displayable by any browser + * + * @return mixed Output type on success, False on failure + */ + public function resize($size, $filename = null, $browser_compat = false) + { + $result = false; + $rcube = rcube::get_instance(); + $convert = $rcube->config->get('im_convert_path', false); + $props = $this->props(); + + if (!$filename) { + $filename = $this->image_file; + } + + // use Imagemagick + if ($convert) { + $p['out'] = $filename; + $p['in'] = $this->image_file; + $p['size'] = $size.'x'.$size; + $type = $props['type']; + + if (!$type && ($data = $this->identify())) { + $type = $data[0]; + } + + $type = strtr($type, array("jpeg" => "jpg", "tiff" => "tif", "ps" => "eps", "ept" => "eps")); + $p['intype'] = $type; + + // convert to an image format every browser can display + if ($browser_compat && !in_array($type, array('jpg','gif','png'))) { + $type = 'jpg'; + } + + $p += array('type' => $type, 'types' => "bmp,eps,gif,jp2,jpg,png,svg,tif", 'quality' => 75); + $p['-opts'] = array('-resize' => $p['size'].'>'); + + if (in_array($type, explode(',', $p['types']))) { // Valid type? + $result = rcube::exec($convert . ' 2>&1 -flatten -auto-orient -colorspace RGB -quality {quality} {-opts} {intype}:{in} {type}:{out}', $p); + } + + if ($result === '') { + return $type; + } + } + + // use GD extension + $gd_types = array(IMAGETYPE_JPEG, IMAGETYPE_GIF, IMAGETYPE_PNG); + if ($props['gd_type'] && in_array($props['gd_type'], $gd_types)) { + if ($props['gd_type'] == IMAGETYPE_JPEG) { + $image = imagecreatefromjpeg($this->image_file); + } + elseif($props['gd_type'] == IMAGETYPE_GIF) { + $image = imagecreatefromgif($this->image_file); + } + elseif($props['gd_type'] == IMAGETYPE_PNG) { + $image = imagecreatefrompng($this->image_file); + } + + $scale = $size / max($props['width'], $props['height']); + $width = $props['width'] * $scale; + $height = $props['height'] * $scale; + + $new_image = imagecreatetruecolor($width, $height); + + // Fix transparency of gif/png image + if ($props['gd_type'] != IMAGETYPE_JPEG) { + imagealphablending($new_image, false); + imagesavealpha($new_image, true); + $transparent = imagecolorallocatealpha($new_image, 255, 255, 255, 127); + imagefilledrectangle($new_image, 0, 0, $width, $height, $transparent); + } + + imagecopyresampled($new_image, $image, 0, 0, 0, 0, $width, $height, $props['width'], $props['height']); + $image = $new_image; + + if ($props['gd_type'] == IMAGETYPE_JPEG) { + $result = imagejpeg($image, $filename, 75); + $type = 'jpg'; + } + elseif($props['gd_type'] == IMAGETYPE_GIF) { + $result = imagegif($image, $filename); + $type = 'gid'; + } + elseif($props['gd_type'] == IMAGETYPE_PNG) { + $result = imagepng($image, $filename, 6, PNG_ALL_FILTERS); + $type = 'png'; + } + + if ($result) { + return $type; + } + } + + // @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; + } + + /** + * Identify command handler. + */ + private function identify() + { + $rcube = rcube::get_instance(); + + if ($cmd = $rcube->config->get('im_identify_path')) { + $args = array('in' => $this->image_file, 'format' => "%m %[fx:w] %[fx:h]"); + $id = rcube::exec($cmd. ' 2>/dev/null -format {format} {in}', $args); + + if ($id) { + return explode(' ', strtolower($id)); + } + } + } + +} -- cgit v1.2.3