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Directory >> /home/whitjouh/public_html/core/vendor/intervention/image/src/Intervention/Image/Gd/Commands/

File / Folder	Size	Action
.	-
BackupCommand.php	0.535KB	edt ren
BlurCommand.php	0.528KB	edt ren
BrightnessCommand.php	0.48KB	edt ren
ColorizeCommand.php	0.821KB	edt ren
ContrastCommand.php	0.476KB	edt ren
CropCommand.php	1.216KB	edt ren
DestroyCommand.php	0.551KB	edt ren
FillCommand.php	1.957KB	edt ren
FitCommand.php	1KB	edt ren
FlipCommand.php	0.908KB	edt ren
GammaCommand.php	0.467KB	edt ren
GetSizeCommand.php	0.508KB	edt ren
GreyscaleCommand.php	0.399KB	edt ren
HeightenCommand.php	0.782KB	edt ren
InsertCommand.php	1.105KB	edt ren
InterlaceCommand.php	0.458KB	edt ren
InvertCommand.php	0.381KB	edt ren
LimitColorsCommand.php	1.339KB	edt ren
MaskCommand.php	2.425KB	edt ren
OpacityCommand.php	0.744KB	edt ren
PickColorCommand.php	0.985KB	edt ren
PixelCommand.php	0.654KB	edt ren
PixelateCommand.php	0.477KB	edt ren
ResetCommand.php	0.944KB	edt ren
ResizeCanvasCommand.php	2.806KB	edt ren
ResizeCommand.php	2.301KB	edt ren
RotateCommand.php	0.751KB	edt ren
SharpenCommand.php	0.763KB	edt ren
TrimCommand.php	4.976KB	edt ren
WidenCommand.php	0.776KB	edt ren

<?php

namespace Intervention\Image\Gd\Commands;

use Intervention\Image\Commands\AbstractCommand;

class MaskCommand extends AbstractCommand
{
    /**
     * Applies an alpha mask to an image
     *
     * @param  \Intervention\Image\Image $image
     * @return boolean
     */
    public function execute($image)
    {
        $mask_source = $this->argument(0)->value();
        $mask_w_alpha = $this->argument(1)->type('bool')->value(false);

$image_size = $image->getSize();

// create empty canvas
        $canvas = $image->getDriver()->newImage($image_size->width, $image_size->height, [0,0,0,0]);

// build mask image from source
        $mask = $image->getDriver()->init($mask_source);
        $mask_size = $mask->getSize();

// resize mask to size of current image (if necessary)
        if ($mask_size != $image_size) {
            $mask->resize($image_size->width, $image_size->height);
        }

imagealphablending($canvas->getCore(), false);

if ( ! $mask_w_alpha) {
            // mask from greyscale image
            imagefilter($mask->getCore(), IMG_FILTER_GRAYSCALE);
        }

// redraw old image pixel by pixel considering alpha map
        for ($x=0; $x < $image_size->width; $x++) {
            for ($y=0; $y < $image_size->height; $y++) {

$color = $image->pickColor($x, $y, 'array');
                $alpha = $mask->pickColor($x, $y, 'array');

if ($mask_w_alpha) {
                    $alpha = $alpha[3]; // use alpha channel as mask
                } else {

if ($alpha[3] == 0) { // transparent as black
                        $alpha = 0;
                    } else {

// $alpha = floatval(round((($alpha[0] + $alpha[1] + $alpha[3]) / 3) / 255, 2));

// image is greyscale, so channel doesn't matter (use red channel)
                        $alpha = floatval(round($alpha[0] / 255, 2));
                    }

}

// preserve alpha of original image...
                if ($color[3] < $alpha) {
                    $alpha = $color[3];
                }

// replace alpha value
                $color[3] = $alpha;

// redraw pixel
                $canvas->pixel($color, $x, $y);
            }
        }

// replace current image with masked instance
        $image->setCore($canvas->getCore());

return true;
    }
}

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