Merge branch 'master' into calendar
Georg Ehrke
commit
fe59015126
@ -0,0 +1,41 @@
|
||||
Attribution-Non-Commercial-Share Alike 2.0 UK: England & Wales
|
||||
|
||||
http://creativecommons.org/licenses/by-nc-sa/2.0/uk/
|
||||
|
||||
You are free:
|
||||
|
||||
* to copy, distribute, display, and perform the work
|
||||
* to make derivative works
|
||||
|
||||
|
||||
Under the following conditions:
|
||||
|
||||
* Attribution — You must give the original author credit.
|
||||
Attribute this work:
|
||||
Information
|
||||
What does "Attribute this work" mean?
|
||||
The page you came from contained embedded licensing metadata,
|
||||
including how the creator wishes to be attributed for re-use.
|
||||
You can use the HTML here to cite the work. Doing so will
|
||||
also include metadata on your page so that others can find the
|
||||
original work as well.
|
||||
|
||||
* Non-Commercial — You may not use this work for commercial
|
||||
purposes.
|
||||
* Share Alike — If you alter, transform, or build upon this
|
||||
work, you may distribute the resulting work only under a
|
||||
licence identical to this one.
|
||||
|
||||
With the understanding that:
|
||||
|
||||
* Waiver — Any of the above conditions can be waived if you get
|
||||
permission from the copyright holder.
|
||||
* Other Rights — In no way are any of the following rights
|
||||
affected by the license:
|
||||
o Your fair dealing or fair use rights;
|
||||
o The author's moral rights;
|
||||
o Rights other persons may have either in the work itself
|
||||
or in how the work is used, such as publicity or privacy rights.
|
||||
* Notice — For any reuse or distribution, you must make clear to
|
||||
others the licence terms of this work.
|
||||
|
||||
@ -0,0 +1,15 @@
|
||||
jQuery.inview is licensed Attribution-Non-Commercial-Share Alike 2.0 but the
|
||||
conditions has been waived by the author in the following tweet:
|
||||
|
||||
https://twitter.com/#!/ChristopherBlum/status/148382899887013888
|
||||
|
||||
Saying:
|
||||
|
||||
Thomas Tanghus @tanghus 18 Dec. 2011
|
||||
|
||||
@ChristopherBlum Hi. Is it OK if I use https://github.com/protonet/jquery.inview in ownCloud? Preferably under an AGPL license ;-) owncloud.org
|
||||
|
||||
|
||||
Christopher Blum Christopher Blum @ChristopherBlum 18 Dec. 2011
|
||||
|
||||
@tanghus Feel free to! :)
|
||||
@ -0,0 +1,474 @@
|
||||
<?php
|
||||
|
||||
/**
|
||||
* ownCloud
|
||||
*
|
||||
* @author Thomas Tanghus
|
||||
* @copyright 2011 Thomas Tanghus <thomas@tanghus.net>
|
||||
*
|
||||
* This library is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 3 of the License, or any later version.
|
||||
*
|
||||
* This library is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Affero General Public
|
||||
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
|
||||
*
|
||||
*/
|
||||
|
||||
/** From user comments at http://dk2.php.net/manual/en/function.exif-imagetype.php
|
||||
* Don't know if it can come in handy?
|
||||
if ( ! function_exists( 'exif_imagetype' ) ) {
|
||||
function exif_imagetype ( $filename ) {
|
||||
if ( ( list($width, $height, $type, $attr) = getimagesize( $filename ) ) !== false ) {
|
||||
return $type;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
}
|
||||
*/
|
||||
|
||||
function ellipsis($str, $maxlen) {
|
||||
if (strlen($str) > $maxlen) {
|
||||
$characters = floor($maxlen / 2);
|
||||
return substr($str, 0, $characters) . '...' . substr($str, -1 * $characters);
|
||||
}
|
||||
return $str;
|
||||
}
|
||||
|
||||
/**
|
||||
* Class for image manipulation
|
||||
* Ideas: imagerotate, chunk_split(base64_encode())
|
||||
*
|
||||
*/
|
||||
class OC_Image {
|
||||
static private $resource = false; // tmp resource.
|
||||
static private $destroy = false; // if the resource is created withing the object.
|
||||
static private $imagetype = IMAGETYPE_PNG; // Default to png if file type isn't evident.
|
||||
static private $filepath = null;
|
||||
/**
|
||||
* @brief Constructor.
|
||||
* @param $imageref The path to a local file, a base64 encoded string or a resource created by an imagecreate* function.
|
||||
* If a resource is passed it is the job of the caller to destroy it using imagedestroy($var)
|
||||
* @returns bool False on error
|
||||
*/
|
||||
function __construct($imageref = null) {
|
||||
//OC_Log::write('core','OC_Image::__construct, start', OC_Log::DEBUG);
|
||||
if(!extension_loaded('gd') || !function_exists('gd_info')) {
|
||||
//if(!function_exists('imagecreatefromjpeg')) {
|
||||
OC_Log::write('core','OC_Image::__construct, GD module not installed', OC_Log::ERROR);
|
||||
return false;
|
||||
}
|
||||
if(!is_null($imageref)) {
|
||||
self::load($imageref);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Destructor.
|
||||
*/
|
||||
function __destruct() {
|
||||
if(is_resource(self::$resource) && self::$destroy) {
|
||||
imagedestroy(self::$resource); // Why does this issue a warning.
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Determine whether the object contains an image resource.
|
||||
* @returns bool
|
||||
*/
|
||||
public function valid() { // apparently you can't name a method 'empty'...
|
||||
$ret = is_resource(self::$resource);
|
||||
return $ret;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Returns the MIME type of the image or an empty string if no image is loaded.
|
||||
* @returns int
|
||||
*/
|
||||
public function mimeType() {
|
||||
return is_resource(self::$resource) ? image_type_to_mime_type(self::$imagetype) : '';
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Returns the width of the image or -1 if no image is loaded.
|
||||
* @returns int
|
||||
*/
|
||||
public function width() {
|
||||
return is_resource(self::$resource) ? imagesx(self::$resource) : -1;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Returns the height of the image or -1 if no image is loaded.
|
||||
* @returns int
|
||||
*/
|
||||
public function height() {
|
||||
return is_resource(self::$resource) ? imagesy(self::$resource) : -1;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Outputs the image.
|
||||
* @returns bool
|
||||
*/
|
||||
public function show() {
|
||||
return $this->_output();
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Saves the image.
|
||||
* @returns bool
|
||||
*/
|
||||
|
||||
public function save($filepath=null) {
|
||||
if($filepath === null && $this->filepath === null) {
|
||||
OC_Log::write('core','OC_Image::save. save() called with no path.', OC_Log::ERROR);
|
||||
return false;
|
||||
} elseif($filepath === null && $this->filepath !== null) {
|
||||
$filepath = $this->filepath;
|
||||
}
|
||||
return $this->_output($filepath, true);
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Outputs/saves the image.
|
||||
*/
|
||||
private function _output($filepath=null, $really=false) {
|
||||
header('Content-Type: '.self::mimeType());
|
||||
if($really === false) {
|
||||
$filepath = null; // Just being cautious ;-)
|
||||
} else {
|
||||
if(!is_writable(dirname($filepath))) {
|
||||
OC_Log::write('core','OC_Image::save. Directory \''.dirname($filepath).'\' is not writable.', OC_Log::ERROR);
|
||||
return false;
|
||||
} elseif(is_writable(dirname($filepath)) && !is_writable($filepath)) {
|
||||
OC_Log::write('core','OC_Image::save. File \''.$filepath.'\' is not writable.', OC_Log::ERROR);
|
||||
return false;
|
||||
}
|
||||
}
|
||||
$retval = false;
|
||||
switch(self::$imagetype) {
|
||||
case IMAGETYPE_GIF:
|
||||
$retval = imagegif(self::$resource, $filepath);
|
||||
break;
|
||||
case IMAGETYPE_JPEG:
|
||||
$retval = imagejpeg(self::$resource, $filepath);
|
||||
break;
|
||||
case IMAGETYPE_PNG:
|
||||
$retval = imagepng(self::$resource, $filepath);
|
||||
break;
|
||||
case IMAGETYPE_XBM:
|
||||
$retval = imagexbm(self::$resource, $filepath);
|
||||
break;
|
||||
case IMAGETYPE_WBMP:
|
||||
case IMAGETYPE_BMP:
|
||||
$retval = imagewbmp(self::$resource, $filepath);
|
||||
break;
|
||||
default:
|
||||
$retval = imagepng(self::$resource, $filepath);
|
||||
}
|
||||
return $retval;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Prints the image when called as $image().
|
||||
*/
|
||||
public function __invoke() {
|
||||
return self::show();
|
||||
}
|
||||
|
||||
/**
|
||||
* @returns Returns the image resource in any.
|
||||
*/
|
||||
public function resource() {
|
||||
return self::$resource;
|
||||
}
|
||||
|
||||
/**
|
||||
* @returns Returns a base64 encoded string suitable for embedding in a VCard.
|
||||
*/
|
||||
function __toString() {
|
||||
ob_start();
|
||||
$res = imagepng(self::$resource);
|
||||
if (!$res) {
|
||||
OC_Log::write('core','OC_Image::_string. Error writing image',OC_Log::ERROR);
|
||||
}
|
||||
return chunk_split(base64_encode(ob_get_clean()));
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Loads an image from a local file, a base64 encoded string or a resource created by an imagecreate* function.
|
||||
* @param $imageref The path to a local file, a base64 encoded string or a resource created by an imagecreate* function.
|
||||
* If a resource is passed it is the job of the caller to destroy it using imagedestroy($var)
|
||||
* @returns An image resource or false on error
|
||||
*/
|
||||
public function load($imageref) {
|
||||
if(self::loadFromFile($imageref) !== false) {
|
||||
return self::$resource;
|
||||
} elseif(self::loadFromBase64($imageref) !== false) {
|
||||
return self::$resource;
|
||||
} elseif(self::loadFromData($imageref) !== false) {
|
||||
return self::$resource;
|
||||
} elseif(self::loadFromResource($imageref) !== false) {
|
||||
return self::$resource;
|
||||
} else {
|
||||
OC_Log::write('core','OC_Image::load, couldn\'t load anything. Giving up!', OC_Log::DEBUG);
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Loads an image from a local file.
|
||||
* @param $imageref The path to a local file.
|
||||
* @returns An image resource or false on error
|
||||
*/
|
||||
public function loadFromFile($imagepath=false) {
|
||||
if(!is_file($imagepath) || !file_exists($imagepath) || !is_readable($imagepath)) {
|
||||
// Debug output disabled because this method is tried before loadFromBase64?
|
||||
OC_Log::write('core','OC_Image::loadFromFile, couldn\'t load: '.ellipsis($imagepath, 50), OC_Log::DEBUG);
|
||||
return false;
|
||||
}
|
||||
$itype = exif_imagetype($imagepath);
|
||||
switch($itype) {
|
||||
case IMAGETYPE_GIF:
|
||||
if (imagetypes() & IMG_GIF) {
|
||||
self::$resource = imagecreatefromgif($imagepath);
|
||||
} else {
|
||||
OC_Log::write('core','OC_Image::loadFromFile, GIF images not supported: '.$imagepath, OC_Log::DEBUG);
|
||||
}
|
||||
break;
|
||||
case IMAGETYPE_JPEG:
|
||||
if (imagetypes() & IMG_JPG) {
|
||||
self::$resource = imagecreatefromjpeg($imagepath);
|
||||
} else {
|
||||
OC_Log::write('core','OC_Image::loadFromFile, JPG images not supported: '.$imagepath, OC_Log::DEBUG);
|
||||
}
|
||||
break;
|
||||
case IMAGETYPE_PNG:
|
||||
if (imagetypes() & IMG_PNG) {
|
||||
self::$resource = imagecreatefrompng($imagepath);
|
||||
} else {
|
||||
OC_Log::write('core','OC_Image::loadFromFile, PNG images not supported: '.$imagepath, OC_Log::DEBUG);
|
||||
}
|
||||
break;
|
||||
case IMAGETYPE_XBM:
|
||||
if (imagetypes() & IMG_XPM) {
|
||||
self::$resource = imagecreatefromxbm($imagepath);
|
||||
} else {
|
||||
OC_Log::write('core','OC_Image::loadFromFile, XBM/XPM images not supported: '.$imagepath, OC_Log::DEBUG);
|
||||
}
|
||||
break;
|
||||
case IMAGETYPE_WBMP:
|
||||
case IMAGETYPE_BMP:
|
||||
if (imagetypes() & IMG_WBMP) {
|
||||
self::$resource = imagecreatefromwbmp($imagepath);
|
||||
} else {
|
||||
OC_Log::write('core','OC_Image::loadFromFile, (W)BMP images not supported: '.$imagepath, OC_Log::DEBUG);
|
||||
}
|
||||
break;
|
||||
/*
|
||||
case IMAGETYPE_TIFF_II: // (intel byte order)
|
||||
break;
|
||||
case IMAGETYPE_TIFF_MM: // (motorola byte order)
|
||||
break;
|
||||
case IMAGETYPE_JPC:
|
||||
break;
|
||||
case IMAGETYPE_JP2:
|
||||
break;
|
||||
case IMAGETYPE_JPX:
|
||||
break;
|
||||
case IMAGETYPE_JB2:
|
||||
break;
|
||||
case IMAGETYPE_SWC:
|
||||
break;
|
||||
case IMAGETYPE_IFF:
|
||||
break;
|
||||
case IMAGETYPE_ICO:
|
||||
break;
|
||||
case IMAGETYPE_SWF:
|
||||
break;
|
||||
case IMAGETYPE_PSD:
|
||||
break;
|
||||
*/
|
||||
default:
|
||||
self::$resource = imagecreatefromstring(file_get_contents($imagepath));
|
||||
$itype = IMAGETYPE_PNG;
|
||||
OC_Log::write('core','OC_Image::loadFromFile, Default', OC_Log::DEBUG);
|
||||
break;
|
||||
}
|
||||
if($this->valid()) {
|
||||
self::$imagetype = $itype;
|
||||
self::$filepath = $imagepath;
|
||||
self::$destroy = true;
|
||||
}
|
||||
return self::$resource;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Loads an image from a string of data.
|
||||
* @param $str A string of image data as read from a file.
|
||||
* @returns An image resource or false on error
|
||||
*/
|
||||
public function loadFromData($str) {
|
||||
if(is_resource($str)) {
|
||||
return false;
|
||||
}
|
||||
self::$resource = imagecreatefromstring($str);
|
||||
if(!self::$resource) {
|
||||
OC_Log::write('core','OC_Image::loadFromData, couldn\'t load', OC_Log::DEBUG);
|
||||
return false;
|
||||
}
|
||||
self::$destroy = true;
|
||||
return self::$resource;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Loads an image from a base64 encoded string.
|
||||
* @param $str A string base64 encoded string of image data.
|
||||
* @returns An image resource or false on error
|
||||
*/
|
||||
public function loadFromBase64($str) {
|
||||
if(!is_string($str)) {
|
||||
return false;
|
||||
}
|
||||
$data = base64_decode($str);
|
||||
if($data) { // try to load from string data
|
||||
self::$resource = imagecreatefromstring($data);
|
||||
if(!self::$resource) {
|
||||
OC_Log::write('core','OC_Image::loadFromBase64, couldn\'t load', OC_Log::DEBUG);
|
||||
return false;
|
||||
}
|
||||
self::$destroy = true;
|
||||
return self::$resource;
|
||||
} else {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Checks if image resource is valid and assigns it to self::$resource.
|
||||
* @param $res An image resource.
|
||||
* @returns An image resource or false on error
|
||||
*/
|
||||
public function loadFromResource($res) {
|
||||
if(!is_resource($res)) {
|
||||
return false;
|
||||
}
|
||||
self::$resource = $res;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Resizes the image preserving ratio.
|
||||
* @param $maxsize The maximum size of either the width or height.
|
||||
* @returns bool
|
||||
*/
|
||||
public function resize($maxsize) {
|
||||
if(!self::$resource) {
|
||||
OC_Log::write('core','OC_Image::resize, No image loaded', OC_Log::ERROR);
|
||||
return false;
|
||||
}
|
||||
$width_orig=imageSX(self::$resource);
|
||||
$height_orig=imageSY(self::$resource);
|
||||
$ratio_orig = $width_orig/$height_orig;
|
||||
|
||||
if ($ratio_orig > 1) {
|
||||
$new_height = round($maxsize/$ratio_orig);
|
||||
$new_width = $maxsize;
|
||||
} else {
|
||||
$new_width = round($maxsize*$ratio_orig);
|
||||
$new_height = $maxsize;
|
||||
}
|
||||
|
||||
$process = imagecreatetruecolor(round($new_width), round($new_height));
|
||||
if ($process == false) {
|
||||
OC_Log::write('core','OC_Image::resize. Error creating true color image',OC_Log::ERROR);
|
||||
imagedestroy($process);
|
||||
return false;
|
||||
}
|
||||
|
||||
imagecopyresampled($process, self::$resource, 0, 0, 0, 0, $new_width, $new_height, $width_orig, $height_orig);
|
||||
if ($process == false) {
|
||||
OC_Log::write('core','OC_Image::resize. Error resampling process image '.$new_width.'x'.$new_height,OC_Log::ERROR);
|
||||
imagedestroy($process);
|
||||
return false;
|
||||
}
|
||||
self::$resource = $process;
|
||||
return true;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Crops the image to the middle square. If the image is already square it just returns.
|
||||
* @returns bool for success or failure
|
||||
*/
|
||||
public function centerCrop() {
|
||||
if(!self::$resource) {
|
||||
OC_Log::write('core','OC_Image::centerCrop, No image loaded', OC_Log::ERROR);
|
||||
return false;
|
||||
}
|
||||
$width_orig=imageSX(self::$resource);
|
||||
$height_orig=imageSY(self::$resource);
|
||||
if($width_orig === $height_orig) {
|
||||
return true;
|
||||
}
|
||||
$ratio_orig = $width_orig/$height_orig;
|
||||
$width = $height = min($width_orig, $height_orig);
|
||||
|
||||
if ($ratio_orig > 1) {
|
||||
$x = ($width_orig/2) - ($width/2);
|
||||
$y = 0;
|
||||
} else {
|
||||
$y = ($height_orig/2) - ($height/2);
|
||||
$x = 0;
|
||||
}
|
||||
$process = imagecreatetruecolor($width, $height);
|
||||
if ($process == false) {
|
||||
OC_Log::write('core','OC_Image::centerCrop. Error creating true color image',OC_Log::ERROR);
|
||||
imagedestroy($process);
|
||||
return false;
|
||||
}
|
||||
imagecopyresampled($process, self::$resource, 0, 0, $x, $y, $width, $height, $width, $height);
|
||||
if ($process == false) {
|
||||
OC_Log::write('core','OC_Image::centerCrop. Error resampling process image '.$width.'x'.$height,OC_Log::ERROR);
|
||||
imagedestroy($process);
|
||||
return false;
|
||||
}
|
||||
self::$resource = $process;
|
||||
return true;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Crops the image from point $x$y with dimension $wx$h.
|
||||
* @param $x Horizontal position
|
||||
* @param $y Vertical position
|
||||
* @param $w Width
|
||||
* @param $h Hight
|
||||
* @returns bool for success or failure
|
||||
*/
|
||||
public function crop($x, $y, $w, $h) {
|
||||
if(!self::$resource) {
|
||||
OC_Log::write('core','OC_Image::crop, No image loaded', OC_Log::ERROR);
|
||||
return false;
|
||||
}
|
||||
$width_orig=imageSX(self::$resource);
|
||||
$height_orig=imageSY(self::$resource);
|
||||
//OC_Log::write('core','OC_Image::crop. Original size: '.$width_orig.'x'.$height_orig, OC_Log::DEBUG);
|
||||
$process = imagecreatetruecolor($w, $h);
|
||||
if ($process == false) {
|
||||
OC_Log::write('core','OC_Image::crop. Error creating true color image',OC_Log::ERROR);
|
||||
imagedestroy($process);
|
||||
return false;
|
||||
}
|
||||
imagecopyresampled($process, self::$resource, 0, 0, $x, $y, $w, $h, $w, $h);
|
||||
if ($process == false) {
|
||||
OC_Log::write('core','OC_Image::crop. Error resampling process image '.$w.'x'.$h,OC_Log::ERROR);
|
||||
imagedestroy($process);
|
||||
return false;
|
||||
}
|
||||
self::$resource = $process;
|
||||
return true;
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue