日付入れる裏蓋をシミュレート

Urabuta.php

<?php
class Urabuta {

    const datetime_original_format = 'Y:m:d H:i:s';
    const datetime_output_format = '\'y m d';

    private $date_time;
    private $image;

    public function __construct($photo) {
	$exif_data = exif_read_data($photo);
	$this->date_time = DateTime::createFromFormat(self::datetime_original_format, $exif_data['DateTimeOriginal']);
	$this->image = new Imagick($photo);
    }

    public function dateTime(){
	return $this->date_time;
    }

    public function dateTimeText(){
	return $this->date_time->format(self::datetime_output_format);
    }

    public function output($width=0){
	if($is_rotate = ($this->image->getImageWidth() < $this->image->getImageHeight()))
	    $this->image->rotateImage('none', 90);
	$annot = new Imagick();
	$annot->newImage($this->image->getImageWidth(), $this->image->getImageHeight(), 'none');
	$draw = new ImagickDraw();
	$draw->setGravity(imagick::GRAVITY_SOUTHEAST);	
	$draw->setFillColor(new ImagickPixel('#FFAC00'));
	$draw->setFont('YournameD7EnterpriseCondensed.ttf');
	$draw->setFontSize($annot->getImageHeight() * 0.048);
	$annot->annotateImage($draw, $annot->getImageWidth() * 0.1 , $annot->getImageHeight() * 0.1, 0, $this->dateTimeText());
	$annot->gaussianBlurImage($annot->getImageWidth() * 0.001, $annot->getImageWidth() * 0.01);
	$this->image->compositeImage($annot, Imagick::COMPOSITE_HARDLIGHT, 0, 0);

	if($width != 0)
	    $this->image->thumbnailimage($width, $this->image->getImageHeight() * $width / $this->image->getImageWidth());
	if($is_rotate)
	    $this->image->rotateImage('none', -90);
	header("Content-Type: image/{$this->image->getImageFormat()}");
	echo $this->image;
    }

}