92 lines
2.4 KiB
PHP
92 lines
2.4 KiB
PHP
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<?php
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/**
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* ImgProcess
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* Actual image manipulation
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*/
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class ImgProcess {
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private $folder; //folder for reading source images and write
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private $canvasName;
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private $zapWidth;//collage dimensions
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private $zapHeight;
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private $maxRGB; //depends on colorDepth. 8 bits: 255; 16 bits : 65536;
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/**
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* constructor
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* @param $imgFolder string
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* @param $width int
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* @param $height int
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* @param $nr int
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*/
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public function __construct($imgFolder, $width, $height, $nr) {
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$this->folder = $imgFolder;
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$this->zapWidth = $width;
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$this->zapHeight = $height;
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$this->canvasName = DIRECTORY_SEPARATOR . ZAP_CANVAS_NAME;
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$this->canvasName .= $_SESSION['date'] . "_nr_" . sprintf("%02d", $nr);
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$tmpImg = new Imagick();
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$tmpAr = $tmpImg->getQuantumRange();
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$this->maxRGB = $tmpAr['quantumRangeLong'];
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$tmpImg->destroy();
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}
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/**
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* Makes a basic canvasFile from sourceImage
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* and saves it into imageFolder
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* returns imageBLOB from saved image
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* @param string $sourceImgName
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* @return void
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*/
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public function createBasicCanvas($sourceImgName) {
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$canvas = new Imagick($sourceImgName);
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$canvas = ImgTools::zoomCrop($canvas, $this->zapWidth, $this->zapHeight, TRUE);
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ImgIOTools::saveImg($canvas, $this->folder, $this->canvasName);
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if (ZAP_DELETE_SOURCE == true) {
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unlink($sourceImgName);
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}
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ImgIOTools::onScreen($canvas);
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}
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/**
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* adds processed version of $sourceImage to canvas
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* @param string $sourceImgName
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* @return void
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*/
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public function addToCanvas($sourceImgName) {
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$canvasUri = $this->folder . $this->canvasName . '.' . ZAP_IMG_TYPE;
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$canvas = new Imagick($canvasUri);
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$source_im = new Imagick($sourceImgName);
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$newCanvas_im = $this->zapToCanvas($source_im, $canvas);
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ImgIOTools::saveImg($newCanvas_im, $this->folder, $this->canvasName);
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if (ZAP_DELETE_SOURCE == true) {
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unlink($sourceImgName);
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}
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ImgIOTools::onScreen($newCanvas_im);
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}
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/**
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* @param Imagick $source_im
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* @param Imagick $canvas
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* @return Imagick Object
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*/
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private function zapToCanvas(Imagick $source_im, $canvas) {
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//$val = ImgTools::imgCenterValueProm($source_im, $this->maxRGB);
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//merge resized random transparised image on top of canvas
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$transparent = ImgTools::transparantRandom($source_im, $this->maxRGB);
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$resized = ImgTools::resize($transparent, $this->zapWidth, $this->zapHeight);
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$canvas->compositeImage($resized, imagick::COMPOSITE_OVER, 0, 0);
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return $canvas;
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}
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}
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?>
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