| commit | author | age | ||
| a71a97 | 1 | <?php |
| A | 2 | |
| 3 | /* | |
| 4 | +-----------------------------------------------------------------------+ | |
| 5 | | program/include/rcube_image.php | | |
| 6 | | | | |
| 7 | | This file is part of the Roundcube Webmail client | | |
| 8 | | Copyright (C) 2005-2012, The Roundcube Dev Team | | |
| 9 | | Copyright (C) 2011-2012, Kolab Systems AG | | |
| 10 | | | | |
| 11 | | Licensed under the GNU General Public License version 3 or | | |
| 12 | | any later version with exceptions for skins & plugins. | | |
| 13 | | See the README file for a full license statement. | | |
| 14 | | | | |
| 15 | | PURPOSE: | | |
| 16 | | Image resizer | | |
| 17 | | | | |
| 18 | +-----------------------------------------------------------------------+ | |
| 19 | | Author: Thomas Bruederli <roundcube@gmail.com> | | |
| 20 | | Author: Aleksander Machniak <alec@alec.pl> | | |
| 21 | +-----------------------------------------------------------------------+ | |
| 22 | */ | |
| 23 | ||
| 24 | class rcube_image | |
| 25 | { | |
| 26 | private $image_file; | |
| 27 | ||
| 28 | function __construct($filename) | |
| 29 | { | |
| 30 | $this->image_file = $filename; | |
| 31 | } | |
| 32 | ||
| 33 | /** | |
| 34 | * Get image properties. | |
| 35 | * | |
| 36 | * @return mixed Hash array with image props like type, width, height | |
| 37 | */ | |
| 38 | public function props() | |
| 39 | { | |
| f5a7e1 | 40 | // use GD extension |
| a71a97 | 41 | if (function_exists('getimagesize') && ($imsize = @getimagesize($this->image_file))) { |
| A | 42 | $width = $imsize[0]; |
| 43 | $height = $imsize[1]; | |
| 44 | $gd_type = $imsize['2']; | |
| 45 | $type = image_type_to_extension($imsize['2'], false); | |
| 46 | } | |
| 47 | ||
| f5a7e1 | 48 | // use ImageMagick |
| A | 49 | if (!$type && ($data = $this->identify())) { |
| 50 | list($type, $width, $height) = $data; | |
| a71a97 | 51 | } |
| A | 52 | |
| 53 | if ($type) { | |
| 54 | return array( | |
| 55 | 'type' => $type, | |
| 56 | 'gd_type' => $gd_type, | |
| 57 | 'width' => $width, | |
| 58 | 'height' => $height, | |
| 59 | ); | |
| 60 | } | |
| 61 | } | |
| 62 | ||
| 63 | /** | |
| 64 | * Resize image to a given size | |
| 65 | * | |
| 66 | * @param int $size Max width/height size | |
| 67 | * @param string $filename Output filename | |
| 68 | * | |
| 69 | * @return Success of convert as true/false | |
| 70 | */ | |
| 71 | public function resize($size, $filename = null) | |
| 72 | { | |
| be98df | 73 | $result = false; |
| A | 74 | $rcube = rcube::get_instance(); |
| b1b808 | 75 | $convert = $rcube->config->get('im_convert_path', false); |
| be98df | 76 | $props = $this->props(); |
| a71a97 | 77 | |
| A | 78 | if (!$filename) { |
| 79 | $filename = $this->image_file; | |
| 80 | } | |
| 81 | ||
| 82 | // use Imagemagick | |
| 83 | if ($convert) { | |
| 84 | $p['out'] = $filename; | |
| 85 | $p['in'] = $this->image_file; | |
| 86 | $p['size'] = $size.'x'.$size; | |
| f5a7e1 | 87 | $type = $props['type']; |
| a71a97 | 88 | |
| f5a7e1 | 89 | if (!$type && ($data = $this->identify())) { |
| A | 90 | $type = $data[0]; |
| a71a97 | 91 | } |
| A | 92 | |
| 93 | $type = strtr($type, array("jpeg" => "jpg", "tiff" => "tif", "ps" => "eps", "ept" => "eps")); | |
| 94 | $p += array('type' => $type, 'types' => "bmp,eps,gif,jp2,jpg,png,svg,tif", 'quality' => 75); | |
| 95 | $p['-opts'] = array('-resize' => $size.'>'); | |
| 96 | ||
| 97 | if (in_array($type, explode(',', $p['types']))) { // Valid type? | |
| be98df | 98 | $result = rcube::exec($convert . ' 2>&1 -flatten -auto-orient -colorspace RGB -quality {quality} {-opts} {in} {type}:{out}', $p) === ''; |
| a71a97 | 99 | } |
| A | 100 | |
| 101 | if ($result) { | |
| 102 | return true; | |
| 103 | } | |
| 104 | } | |
| 105 | ||
| 106 | // use GD extension | |
| 107 | $gd_types = array(IMAGETYPE_JPEG, IMAGETYPE_GIF, IMAGETYPE_PNG); | |
| 108 | if ($props['gd_type'] && in_array($props['gd_type'], $gd_types)) { | |
| 109 | if ($props['gd_type'] == IMAGETYPE_JPEG) { | |
| 110 | $image = imagecreatefromjpeg($this->image_file); | |
| 111 | } | |
| 112 | elseif($props['gd_type'] == IMAGETYPE_GIF) { | |
| 113 | $image = imagecreatefromgif($this->image_file); | |
| 114 | } | |
| 115 | elseif($props['gd_type'] == IMAGETYPE_PNG) { | |
| 116 | $image = imagecreatefrompng($this->image_file); | |
| 117 | } | |
| 118 | ||
| 119 | $scale = $size / max($props['width'], $props['height']); | |
| 120 | $width = $props['width'] * $scale; | |
| 121 | $height = $props['height'] * $scale; | |
| 122 | ||
| 123 | $new_image = imagecreatetruecolor($width, $height); | |
| 124 | ||
| 125 | // Fix transparency of gif/png image | |
| 126 | if ($props['gd_type'] != IMAGETYPE_JPEG) { | |
| 127 | imagealphablending($new_image, false); | |
| 128 | imagesavealpha($new_image, true); | |
| 129 | $transparent = imagecolorallocatealpha($new_image, 255, 255, 255, 127); | |
| 130 | imagefilledrectangle($new_image, 0, 0, $width, $height, $transparent); | |
| 131 | } | |
| 132 | ||
| 133 | imagecopyresampled($new_image, $image, 0, 0, 0, 0, $width, $height, $props['width'], $props['height']); | |
| 134 | $image = $new_image; | |
| 135 | ||
| 136 | if ($props['gd_type'] == IMAGETYPE_JPEG) { | |
| 137 | $result = imagejpeg($image, $filename, 75); | |
| 138 | } | |
| 139 | elseif($props['gd_type'] == IMAGETYPE_GIF) { | |
| 140 | $result = imagegif($image, $filename); | |
| 141 | } | |
| 142 | elseif($props['gd_type'] == IMAGETYPE_PNG) { | |
| 143 | $result = imagepng($image, $filename, 6, PNG_ALL_FILTERS); | |
| 144 | } | |
| 145 | ||
| 146 | if ($result) { | |
| 147 | return true; | |
| 148 | } | |
| 149 | } | |
| 150 | ||
| 151 | ||
| 152 | // @TODO: print error to the log? | |
| 153 | return false; | |
| 154 | } | |
| 155 | ||
| f5a7e1 | 156 | /** |
| A | 157 | * Identify command handler. |
| 158 | */ | |
| 159 | private function identify() | |
| 160 | { | |
| be98df | 161 | $rcube = rcube::get_instance(); |
| f5a7e1 | 162 | |
| be98df | 163 | if ($cmd = $rcube->config->get('im_identify_path')) { |
| f5a7e1 | 164 | $args = array('in' => $this->image_file, 'format' => "%m %[fx:w] %[fx:h]"); |
| be98df | 165 | $id = rcube::exec($cmd. ' 2>/dev/null -format {format} {in}', $args); |
| f5a7e1 | 166 | |
| A | 167 | if ($id) { |
| 168 | return explode(' ', strtolower($id)); | |
| 169 | } | |
| 170 | } | |
| 171 | } | |
| a71a97 | 172 | } |
