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Minds Backend - Engine
Minds Backend - Engine
Commit 5aedb8ee authored by Ben Hayward's avatar Ben Hayward
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Core/Media/Imagick/Resize.php deleted 100644 → 0
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<?php
namespace Minds\Core\Media\Imagick;
class Resize
{
/** @var \Imagick $image */
protected $image;
/** @var int $width */
protected $width;
/** @var int $height */
protected $height;
/** @var array $offsets */
protected $offsets = [
'x1' => 0,
'y1' => 0,
'x2' => 0,
'y2' => 0,
];
/** @var bool $upscale */
protected $upscale = false;
/** @var bool $keepRatio */
protected $keepRatio = true;
/** @var bool $square */
protected $square = false;
/** @var \Imagick $output */
protected $output;
/**
* @param \Imagick $image
* @return Resize
*/
public function setImage($image)
{
$this->image = $image;
return $this;
}
/**
* @param int $width
* @return Resize
*/
public function setWidth($width)
{
$this->width = $width;
return $this;
}
/**
* @param int $height
* @return Resize
*/
public function setHeight($height)
{
$this->height = $height;
return $this;
}
/**
* @param array $offsets
* @return $this
*/
public function setOffsets($offsets)
{
$this->offsets = $offsets;
return $this;
}
/**
* @param bool $upscale
* @return Resize
*/
public function setUpscale($upscale)
{
$this->upscale = $upscale;
return $this;
}
/**
* @param bool $value
* @return $this
*/
public function setKeepRatio($value)
{
$this->keepRatio = $value;
return $this;
}
/**
* @param bool $value
* @return $this
*/
public function setSquare($value)
{
$this->square = $value;
return $this;
}
/**
* @return \Imagick
*/
public function getOutput()
{
return $this->output;
}
/**
* Resizes an image to a custom size.
* @return Resize
* @throws \Exception
*/
public function resize()
{
if (!$this->image) {
throw new \Exception('Missing image');
}
if (!$this->width || !$this->height || $this->width < 16 || $this->height < 16) {
throw new \Exception('Invalid size');
}
$params = $this->getResizeParameters();
// If is animated,
// if ($this->image->getNumberImages() > 1) {
$this->image = $this->image->coalesceImages();
foreach ($this->image as $frame) {
error_log("processing frame...");
// Crop into square.
$frame->cropImage(
$params['selectionwidth'],
$params['selectionheight'],
$params['xoffset'],
$params['yoffset']
);
// Resize canvas to new image
$frame->setImagePage(0, 0, 0, 0);
// If selected with / height differ from selection width/height, then we need to resize
if ($params['selectionwidth'] !== $params['newwidth'] || $params['selectionheight'] !== $params['newheight']) {
$frame->thumbnailImage($params['newwidth'], $params['newheight']);
}
}
$this->image = $this->image->deconstructImages();
// } else {
// // Crop the image to selection dimensions
// $this->image->cropImage(
// $params['selectionwidth'],
// $params['selectionheight'],
// $params['xoffset'],
// $params['yoffset']
// );
// // If selected with / height differ from selection width/height, then we need to resize
// if ($params['selectionwidth'] !== $params['newwidth'] || $params['selectionheight'] !== $params['newheight']) {
// $this->image->thumbnailImage($params['newwidth'], $params['newheight']);
// }
// }
$this->output = $this->image;
return $this;
}
/**
* @param int $quality
* @return string
* @throws \Exception
*/
public function getJpeg($quality = 80)
{
if (!$this->output) {
throw new \Exception('Output was not generated');
}
$this->output->setImageBackgroundColor('white');
$this->output = $this->output->mergeImageLayers($this->image::LAYERMETHOD_FLATTEN);
$this->output->setImageCompression($quality);
$this->output->setImageFormat('jpg');
return $this->output->getImageBlob();
}
/**
* @return string
*/
public function getPng()
{
$this->image->setImageFormat('png');
return $this->output->getImageBlob();
}
protected function getResizeParameters()
{
extract($this->offsets);
// Get the size information from the image
$d = $this->image->getImageGeometry();
$width = $d['width'];
$height = $d['height'];
// crop image first?
$crop = true;
if ($x1 == 0 && $y1 == 0 && $x2 == 0 && $y2 == 0) {
$crop = false;
}
// how large a section of the image has been selected
if ($crop) {
$selection_width = $x2 - $x1;
$selection_height = $y2 - $y1;
} else {
// everything selected if no crop parameters
$selection_width = $width;
$selection_height = $height;
}
// determine cropping offsets
if ($this->square) {
// asking for a square image back
// detect case where someone is passing crop parameters that are not for a square
if ($crop == true && $selection_width != $selection_height) {
return false;
}
// size of the new square image
$new_width = $new_height = min($this->width, $this->height);
// find largest square that fits within the selected region
$selection_width = $selection_height = min($selection_width, $selection_height);
// set offsets for crop
if ($crop) {
$widthoffset = $x1;
$heightoffset = $y1;
$width = $x2 - $x1;
$height = $width;
} else {
// place square region in the center
$widthoffset = floor(($width - $selection_width) / 2);
$heightoffset = floor(($height - $selection_height) / 2);
}
} else {
// non-square new image
$new_width = $this->width;
$new_height = $this->height;
// maintain aspect ratio of original image/crop
if (($selection_height / (float) $new_height) > ($selection_width / (float) $new_width)) {
$new_width = floor($new_height * $selection_width / (float) $selection_height);
} else {
$new_height = floor($new_width * $selection_height / (float) $selection_width);
}
// by default, use entire image
$widthoffset = 0;
$heightoffset = 0;
if ($crop) {
$widthoffset = $x1;
$heightoffset = $y1;
}
}
if (!$this->upscale && ($selection_height < $new_height || $selection_width < $new_width)) {
// we cannot upscale and selected area is too small so we decrease size of returned image
if ($this->square) {
$new_height = $selection_height;
$new_width = $selection_width;
} else {
if ($selection_height < $new_height && $selection_width < $new_width) {
$new_height = $selection_height;
$new_width = $selection_width;
}
}
}
$params = [
'newwidth' => $new_width,
'newheight' => $new_height,
'selectionwidth' => $selection_width,
'selectionheight' => $selection_height,
'xoffset' => $widthoffset,
'yoffset' => $heightoffset,
];
return $params;
}
}
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