diff options
Diffstat (limited to 'lib/resize.php')
| -rw-r--r-- | lib/resize.php | 301 |
1 files changed, 281 insertions, 20 deletions
diff --git a/lib/resize.php b/lib/resize.php index 186900f7d..19af7b451 100644 --- a/lib/resize.php +++ b/lib/resize.php @@ -27,10 +27,10 @@ $image_sizes = unserialize($image_sizes);
// Generate thumbnails
- $thumbnail = get_resized_image_from_existing_file( $file->getFilenameOnFilestore(),
- $image_sizes['thumb_image_width'],
- $image_sizes['thumb_image_height'],
- true);
+ $thumbnail = tp_gd_resize( $file->getFilenameOnFilestore(),
+ $image_sizes['thumb_image_width'],
+ $image_sizes['thumb_image_height'],
+ true);
if ($thumbnail) {
$thumb = new ElggFile();
@@ -47,10 +47,10 @@ }
unset($thumbnail);
- $thumbsmall = get_resized_image_from_existing_file( $file->getFilenameOnFilestore(),
- $image_sizes['small_image_width'],
- $image_sizes['small_image_height'],
- true);
+ $thumbsmall = tp_gd_resize( $file->getFilenameOnFilestore(),
+ $image_sizes['small_image_width'],
+ $image_sizes['small_image_height'],
+ true);
if ($thumbsmall) {
@@ -68,10 +68,10 @@ }
unset($thumbsmall);
- $thumblarge = get_resized_image_from_existing_file( $file->getFilenameOnFilestore(),
- $image_sizes['large_image_width'],
- $image_sizes['large_image_height'],
- false);
+ $thumblarge = tp_gd_resize( $file->getFilenameOnFilestore(),
+ $image_sizes['large_image_width'],
+ $image_sizes['large_image_height'],
+ false);
if ($thumblarge) {
$thumb = new ElggFile();
@@ -92,6 +92,108 @@ }
/**
+ * Gets the jpeg contents of the resized version of an already uploaded image - original from Elgg filestore.php
+ * (Returns false if the uploaded file was not an image)
+ *
+ * @param string $input_name The name of the file input field on the submission form
+ * @param int $maxwidth The maximum width of the resized image
+ * @param int $maxheight The maximum height of the resized image
+ * @param true|false $square If set to true, will take the smallest of maxwidth and maxheight and use it to set the dimensions on all size; the image will be cropped.
+ * @return false|mixed The contents of the resized image, or false on failure
+ */
+ function tp_gd_resize($input_name, $maxwidth, $maxheight, $square = false, $x1 = 0, $y1 = 0, $x2 = 0, $y2 = 0) {
+
+ // Get the size information from the image
+ if ($imgsizearray = getimagesize($input_name)) {
+
+ // Get width and height
+ $width = $imgsizearray[0];
+ $height = $imgsizearray[1];
+ $newwidth = $width;
+ $newheight = $height;
+
+ // Square the image dimensions if we're wanting a square image
+ if ($square) {
+ if ($width < $height) {
+ $height = $width;
+ } else {
+ $width = $height;
+ }
+
+ $newwidth = $width;
+ $newheight = $height;
+
+ }
+
+ if ($width > $maxwidth) {
+ $newheight = floor($height * ($maxwidth / $width));
+ $newwidth = $maxwidth;
+ }
+ if ($newheight > $maxheight) {
+ $newwidth = floor($newwidth * ($maxheight / $newheight));
+ $newheight = $maxheight;
+ }
+
+ $accepted_formats = array(
+ 'image/jpeg' => 'jpeg',
+ 'image/png' => 'png',
+ 'image/gif' => 'gif'
+ );
+
+ // If it's a file we can manipulate ...
+ if (array_key_exists($imgsizearray['mime'],$accepted_formats)) {
+
+ $function = "imagecreatefrom" . $accepted_formats[$imgsizearray['mime']];
+ $newimage = imagecreatetruecolor($newwidth,$newheight);
+
+ if (is_callable($function) && $oldimage = $function($input_name)) {
+
+ // Crop the image if we need a square
+ if ($square) {
+ if ($x1 == 0 && $y1 == 0 && $x2 == 0 && $y2 ==0) {
+ $widthoffset = floor(($imgsizearray[0] - $width) / 2);
+ $heightoffset = floor(($imgsizearray[1] - $height) / 2);
+ } else {
+ $widthoffset = $x1;
+ $heightoffset = $y1;
+ $width = ($x2 - $x1);
+ $height = $width;
+ }
+ } else {
+ if ($x1 == 0 && $y1 == 0 && $x2 == 0 && $y2 ==0) {
+ $widthoffset = 0;
+ $heightoffset = 0;
+ } else {
+ $widthoffset = $x1;
+ $heightoffset = $y1;
+ $width = ($x2 - $x1);
+ $height = ($y2 - $y1);
+ }
+ }
+
+ if ($square) {
+ $newheight = $maxheight;
+ $newwidth = $maxwidth;
+ }
+
+ imagecopyresampled($newimage, $oldimage, 0,0,$widthoffset,$heightoffset,$newwidth,$newheight,$width,$height);
+
+ ob_start();
+ imagejpeg($newimage, null, 90);
+ $jpeg = ob_get_clean();
+ return $jpeg;
+
+ }
+
+ }
+
+ }
+
+ return false;
+ }
+
+
+ /**
* Create thumbnails using PHP ImageMagick Library
*
* @param ElggFile holds the image that was uploaded
@@ -101,13 +203,172 @@ */
function tp_create_imagick_thumbnails($file, $prefix, $filestorename)
{
- global $CONFIG;
+ $image_sizes = get_plugin_setting('image_sizes', 'tidypics');
+ if (!$image_sizes) {
+ register_error(elgg_echo('tidypics:nosettings'));
+ return false;
+ }
+ $image_sizes = unserialize($image_sizes);
+
+ $thumb = new ElggFile();
+
+
+ // tiny thumbnail
+ $thumb->setFilename($prefix."thumb".$filestorename);
+ $thumbname = $thumb->getFilenameOnFilestore();
+ $rtn_code = tp_imagick_resize( $file->getFilenameOnFilestore(),
+ $thumbname,
+ $image_sizes['thumb_image_width'],
+ $image_sizes['thumb_image_height'],
+ true);
+ if (!$rtn_code)
+ return false;
+ $file->thumbnail = $prefix."thumb".$filestorename;
+
+
+ // album thumbnail
+ $thumb->setFilename($prefix."smallthumb".$filestorename);
+ $thumbname = $thumb->getFilenameOnFilestore();
+ $rtn_code = tp_imagick_resize( $file->getFilenameOnFilestore(),
+ $thumbname,
+ $image_sizes['small_image_width'],
+ $image_sizes['small_image_height'],
+ true);
+ if (!$rtn_code)
+ return false;
+ $file->smallthumb = $prefix."smallthumb".$filestorename;
+
+
+ // main image
+ $thumb->setFilename($prefix."largethumb".$filestorename);
+ $thumbname = $thumb->getFilenameOnFilestore();
+ $rtn_code = tp_imagick_resize( $file->getFilenameOnFilestore(),
+ $thumbname,
+ $image_sizes['large_image_width'],
+ $image_sizes['large_image_height'],
+ true);
+ if (!$rtn_code)
+ return false;
+ $file->largethumb = $prefix."largethumb".$filestorename;
+
+ unset($thumb);
+
+ return true;
+ }
+
+
+ /**
+ * Resize using PHP ImageMagick Library
+ *
+ * Gets the jpeg contents of the resized version of an already uploaded image
+ * (Returns false if the uploaded file was not an image)
+ *
+ * @param string $input_name The name of the file input field on the submission form
+ * @param string $output_name The name of the file to be written
+ * @param int $maxwidth The maximum width of the resized image
+ * @param int $maxheight The maximum height of the resized image
+ * @param true|false $square If set to true, will take the smallest of maxwidth and maxheight and use it to set the dimensions on all size; the image will be cropped.
+ * @return false|mixed The contents of the resized image, or false on failure
+ */
+ function tp_imagick_resize($input_name, $output_name, $maxwidth, $maxheight, $square = false, $x1 = 0, $y1 = 0, $x2 = 0, $y2 = 0) {
- $mime = $file->getMimeType();
+ // Get the size information from the image
+ $imgsizearray = getimagesize($input_name);
+ if (!$imgsizearray)
+ return false;
- return false; // not implemented yet
- }
+ $accepted_formats = array(
+ 'image/jpeg' => 'jpeg',
+ 'image/png' => 'png',
+ 'image/gif' => 'gif'
+ );
+
+ // test if it's a file we can manipulate ...
+ if (!array_key_exists($imgsizearray['mime'],$accepted_formats))
+ return false;
+ // Get width and height
+ $width = $imgsizearray[0];
+ $height = $imgsizearray[1];
+ $newwidth = $width;
+ $newheight = $height;
+
+ // initial guess at final dimensions for new image (doesn't check for squareness yet
+ if ($newwidth > $maxwidth) {
+ $newheight = floor($newheight * ($maxwidth / $newwidth));
+ $newwidth = $maxwidth;
+ }
+ if ($newheight > $maxheight) {
+ $newwidth = floor($newwidth * ($maxheight / $newheight));
+ $newheight = $maxheight;
+ }
+
+ // Handle squareness for both original and new image
+ if ($square) {
+ if ($width < $height) {
+ $height = $width;
+ } else {
+ $width = $height;
+ }
+
+ // if input arguments = square, no need to use above calculations (which can have round-off errors)
+ if ($maxheight == $maxwidth) {
+ $newwidth = $maxwidth;
+ $newheight = $maxheight;
+ } else {
+ if ($newwidth < $newheight) {
+ $newheight = $newwidth;
+ } else {
+ $newwidth = $newheight;
+ }
+ }
+ }
+
+
+ // Crop the original image - this needs to be checked over
+ if ($square) {
+ if ($x1 == 0 && $y1 == 0 && $x2 == 0 && $y2 ==0) {
+ $xoffset = floor(($imgsizearray[0] - $width) / 2);
+ $yoffset = floor(($imgsizearray[1] - $height) / 2);
+ } else { // assume we're being passed good croping coordinates
+ $xoffset = $x1;
+ $yoffset = $y1;
+ $width = ($x2 - $x1);
+ $height = $width;
+ }
+ } else {
+ if ($x1 == 0 && $y1 == 0 && $x2 == 0 && $y2 ==0) {
+ $xoffset = 0;
+ $yoffset = 0;
+ } else {
+ $xoffset = $x1;
+ $yoffset = $y1;
+ $width = ($x2 - $x1);
+ $height = ($y2 - $y1);
+ }
+ }
+
+
+ try {
+ $img = new Imagick($input_name);
+ } catch (ImagickException $e) {
+ return false;
+ }
+
+ $img->cropImage($width, $height, $xoffset, $yoffset);
+
+ // use the default IM filter (windowing filter), I think 1 means default blurring or number of lobes
+ $img->resizeImage($newwidth, $newheight, imagick::FILTER_LANCZOS, 1);
+
+ if ($img->writeImage($output_name) != true) {
+ $img->destroy();
+ return false;
+ }
+
+ $img->destroy();
+
+ return true;
+ }
/**
* Create thumbnails using ImageMagick executables
@@ -130,19 +391,19 @@ }
$image_sizes = unserialize($image_sizes);
- $thumblarge = tp_imagick_resize($file->getFilenameOnFilestore(),
+ $thumblarge = tp_imagick_cmdline_resize($file->getFilenameOnFilestore(),
"largethumb",
$image_sizes['large_image_width'],
$image_sizes['large_image_height'],
false);
- $thumbsmall = tp_imagick_resize($file->getFilenameOnFilestore(),
+ $thumbsmall = tp_imagick_cmdline_resize($file->getFilenameOnFilestore(),
"smallthumb",
$image_sizes['small_image_width'],
$image_sizes['small_image_height'],
true);
- $thumbnail = tp_imagick_resize($file->getFilenameOnFilestore(),
+ $thumbnail = tp_imagick_cmdline_resize($file->getFilenameOnFilestore(),
"thumb",
$image_sizes['thumb_image_width'],
$image_sizes['thumb_image_height'],
@@ -185,7 +446,7 @@ * @param true|false $square If set to true, will take the smallest of maxwidth and maxheight and use it to set the dimensions on all size; the image will be cropped.
* @return false|mixed The contents of the resized image, or false on failure
*/
- function tp_imagick_resize($input_name, $prefix, $maxwidth, $maxheight, $square = false, $x1 = 0, $y1 = 0, $x2 = 0, $y2 = 0) {
+ function tp_imagick_cmdline_resize($input_name, $prefix, $maxwidth, $maxheight, $square = false, $x1 = 0, $y1 = 0, $x2 = 0, $y2 = 0) {
$params = array(
"input_name"=>$input_name,
|