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