From da77be4fdd8665d58b3002db04de310f293181db Mon Sep 17 00:00:00 2001
From: Alexander Demidov <dimti@bk.ru>
Date: Fri, 24 May 2013 13:27:47 +0400
Subject: [PATCH] Add Image, Upload, UploadHelper.

---
 Image.class.php        | 98 ++++++++++++++++++++++++++++++++++++++++++++++++++
 Upload.class.php       | 57 +++++++++++++++++++++++++++++
 UploadHelper.class.php | 25 +++++++++++++
 3 files changed, 180 insertions(+)
 create mode 100644 Image.class.php
 create mode 100644 Upload.class.php
 create mode 100644 UploadHelper.class.php

diff --git a/Image.class.php b/Image.class.php
new file mode 100644
index 0000000..6a75a1a
--- /dev/null
+++ b/Image.class.php
@@ -0,0 +1,98 @@
+<?php
+
+class Image
+{
+    public $width;
+    public $height;
+    public $type;
+    public $size;
+    public $filename;
+    public $original_filename;
+    public $path;
+    public $variants = array();
+
+    private $_is_empty = true;
+
+    const SIZE_100_80 = '100x80';
+    const SIZE_200_160 = '200x160';
+    const SIZE_300_240 = '300x240';
+    const SIZE_550_440 = '550x440';
+    const SIZE_SKI = '1000x';
+
+    public static $sizes = array(
+        self::SIZE_100_80,
+        self::SIZE_200_160,
+        self::SIZE_300_240,
+        self::SIZE_550_440
+    );
+
+    /**
+     * @param array|string $data
+     * @return Image
+     * @throws ErrorException
+     */
+    public static function getInstance($data)
+    {
+        $instance = new self($data);
+        if (is_null($data)) {
+            throw new ErrorException('Empty data for Image::getInstance().');
+        }
+        if (!is_array($data)) {
+            $data = json_decode($data, true);
+            if (json_last_error() != JSON_ERROR_NONE) {
+                throw new ErrorException('Unable to convert json-string to array.');
+            }
+        }
+        foreach ($data as $attribute_name => $attribute_value) {
+            if (property_exists(__CLASS__, $attribute_name)) {
+                $instance->{$attribute_name} = $attribute_value;
+            }
+        }
+        $instance->_is_empty = false;
+        return $instance;
+    }
+
+    /**
+     * @return string
+     */
+    public function getWebName()
+    {
+        return $this->path . '/' . $this->filename;
+    }
+
+    /**
+     * @param $size string
+     * @return Image
+     */
+    public function getVariant($size)
+    {
+        if (!array_key_exists($size, $this->variants)) {
+            $this->variants[$size] = new Image;
+        } else {
+            if (!is_object($this->variants[$size])) {
+                $this->variants[$size] = self::getInstance($this->variants[$size]);
+            }
+        }
+        return $this->variants[$size];
+
+    }
+
+    public function getIsEmpty()
+    {
+        return (bool) $this->_is_empty;
+    }
+
+    public function setIsNotEmpty()
+    {
+        $this->_is_empty = false;
+    }
+
+    public function __toString()
+    {
+        $data = array();
+        foreach ($this as $attribute_name => $attribute_value) {
+            $data[$attribute_name] = $attribute_value;
+        }
+        return json_encode($data);
+    }
+}
\ No newline at end of file
diff --git a/Upload.class.php b/Upload.class.php
new file mode 100644
index 0000000..ab7d2d0
--- /dev/null
+++ b/Upload.class.php
@@ -0,0 +1,57 @@
+<?php
+
+abstract class Upload
+{
+    /**
+     * @param $file array (ex. ['tmp_name' => '...', 'name' => '...', 'type' => '...'])
+     * @return Image
+     */
+    public static function image($file)
+    {
+        require_once PATH . '/lib/GreagwarImage/GreagwarImage.php';
+        $greagwar_image = new GreagwarImage($file['tmp_name']);
+        $greagwar_image->setCacheDir('media/cache/images');
+        $image = new Image;
+        $image->original_filename = $file['name'];
+        $image->type = $file['type'];
+        self::saveImage($image, $greagwar_image);
+        foreach (Image::$sizes as $size) {
+            $size_parts = explode('x', $size);
+            self::saveImage($image->getVariant($size), $greagwar_image, $size_parts[0] ? : null, $size_parts[1] ? : null);
+        }
+        return $image;
+    }
+
+    /**
+     * @param $image Image
+     * @param $greagwar_image GreagwarImage
+     * @param null $width
+     * @param null $height
+     * @param bool $crop
+     */
+    protected static function saveImage($image, $greagwar_image, $width = null, $height = null, $crop = true)
+    {
+        if ($width || $height) {
+            $greagwar_image->resize($width, $height, 0xffffff, false, false, $crop);
+        }
+        $file_path = $greagwar_image->cacheFile($greagwar_image->guessType(), 87, true);
+        $path_parts = pathinfo($file_path);
+        $image->path = $path_parts['dirname'];
+        $image->filename = $path_parts['basename'];
+        $image->size = filesize($image->path . '/' . $image->filename);
+        $image->width = $greagwar_image->width();
+        $image->height = $greagwar_image->height();
+        $image->setIsNotEmpty();
+    }
+
+    public static function imageCompareAspectRatio($proportion, $file_path)
+    {
+        $imagesize = getimagesize($file_path);
+        $proprtion_parts = explode('x', $proportion);
+        if ($proprtion_parts[0] / $proprtion_parts[1] === $imagesize[0] / $imagesize[1]) {
+            return true;
+        } else {
+            false;
+        }
+    }
+}
\ No newline at end of file
diff --git a/UploadHelper.class.php b/UploadHelper.class.php
new file mode 100644
index 0000000..e691835
--- /dev/null
+++ b/UploadHelper.class.php
@@ -0,0 +1,25 @@
+<?php
+
+abstract class UploadHelper
+{
+    public static function imageCompareAspectRatio($proportion, $file_path)
+    {
+        $imagesize = getimagesize($file_path);
+        $proprtion_parts = explode('x', $proportion);
+        if ($proprtion_parts[0] / $proprtion_parts[1] === $imagesize[0] / $imagesize[1]) {
+            return true;
+        } else {
+            false;
+        }
+    }
+    public static function imageCheckMinSize($size, $file_path)
+    {
+        $imagesize = getimagesize($file_path);
+        $size_parts = explode('x', $size);
+        if ($imagesize[0] >= $size_parts[0] && $imagesize[1] >= $size_parts[1]) {
+            return true;
+        } else {
+            return false;
+        }
+    }
+}
\ No newline at end of file