pfhwyigou/backend/server/SetUploadImg.php

<?php
/**
 * Created by PhpStorm.
 * User: xiaofeng
 * Date: 2018/3/12
 * Time: 上午9:57
 */

namespace backend\server;

use Imagine\Image\ManipulatorInterface;
use yii\imagine\Image;
use common\models\CategoryWatermark;
use Yii;
class SetUploadImg
{
//        private $spacing = 20;
//        private $tmp;
        private $WatermarkInfo;
        public function __construct()
        {
            $model = new CategoryWatermark();
            $watermaekinfo = $model->getWatermarkInfo();
            if($watermaekinfo  == null) return false;
            $this->WatermarkInfo = $watermaekinfo;
//            $this->position = $watermaekinfo['position'];
//            if($watermaekinfo['spacing'] != null) $this->WatermarkInfo['spacing'] = $watermaekinfo['spacing'];
//            $this->tmp = Yii::$app->params['watermark_img']['url'].$watermaekinfo['template'];
        }


        public function SetImgWatermark($image,$path)
        {

             if(is_string($image))
             {
                 $image = explode(',',$image);
             }

            $this->WatermarkInfo['template'] = Yii::$app->params['watermark_img']['url'].$this->WatermarkInfo['template'];
            foreach ($image as $val)
            {
                $sizeImage = getimagesize($path.$val);
                if(empty($sizeImage[0])) return false;
                if( $sizeImage[0] >= $this->WatermarkInfo['width']  &&  $sizeImage[1] >= $this->WatermarkInfo['height'] )
                {
                    static::WatermarkHandle($path.$val);
                }
//                if($sizeImage[0] < $this->WatermarkInfo['width'] || $sizeImage[1] < $this->WatermarkInfo['height']) return false;

            }
//            $this->position = $watermaekinfo['position'];
//            if($watermaekinfo['spacing'] != null)
//            {
//                    $this->WatermarkInfo['spacing'] = $watermaekinfo['spacing'];
//            }
//
//            if()
//
//            $this->WatermarkHandle($image,Yii::$app->params['watermark_img']['url'].$watermaekinfo['template']);


        }

        private function WatermarkHandle($img)
        {
            $sizeWatemark = getimagesize($this->WatermarkInfo['template']);
            $sizeImage    = getimagesize($img);
            switch ($this->WatermarkInfo['position'])
            {
                case 1://左上
                    $pos = [$this->WatermarkInfo['spacing'],$this->WatermarkInfo['spacing']];
                    break;
                case 2: //顶部居中
                    $pos = [$sizeImage[0]/2 - $sizeWatemark[0]/2,$this->WatermarkInfo['spacing']];
                    break;
                case 3: //右上
                    $pos = [$sizeImage[0]-($sizeWatemark[0]+$this->WatermarkInfo['spacing']),$this->WatermarkInfo['spacing']];
                    break;
                case 4: //中间居左
                    $pos = [$this->WatermarkInfo['spacing'],$sizeImage[1]/2 -  $sizeWatemark[1]/2];
                    break;
                case 5: //居中
                    $pos = [$sizeImage[0]/2 - $sizeWatemark[0]/2,$sizeImage[1]/2 -  $sizeWatemark[1]/2];
                    break;
                case 6: //中间居右
                    $pos = [$sizeImage[0] - ($sizeWatemark[0] + $this->WatermarkInfo['spacing']),$sizeImage[1]/2 -  $sizeWatemark[1]/2];
                    break;
                case 7://左下
                    $pos = [$this->WatermarkInfo['spacing'],$sizeImage[1]-($sizeWatemark[1]+$this->WatermarkInfo['spacing'])];
                    break;
                case 8:  //底部居中
                    $pos = [$sizeImage[0]/2 - $sizeWatemark[0]/2,$sizeImage[1]-($sizeWatemark[1] + $this->WatermarkInfo['spacing'])];
                    break;
                case 9://右下
                    $pos = [$sizeImage[0] - ($sizeWatemark[0] + $this->WatermarkInfo['spacing']),$sizeImage[1]-($sizeWatemark[1] + $this->WatermarkInfo['spacing'])];
                    break;
                default:
                    return false;
//                    throw new \ErrorException('请选择水印位置');
                    break;
            }
            Image::watermark($img,$this->WatermarkInfo['template'],$pos)
                ->save($img);
        }


        /*
         * 水印处理
         * @params $image 原图片
         * @params $watemarkImage 水印图
         * @params $position 水印的位置，1-9表示    废弃
         * @params $spacing 水印距离边界的间距
         * */
    public static function Watermark($image,$watemarkImage,$position,$spacing = 20)
    {
        $sizeImage    = getimagesize($image);
        if(empty($sizeImage)) return false;
        if($sizeImage[0] < 600 ||  $sizeImage[1] < 560) return false;
        $sizeWatemark = getimagesize($watemarkImage);
        switch ($position)
        {
            case 1://左上
                $pos = [$spacing,$spacing];
                break;
            case 2: //顶部居中
                $pos = [$sizeImage[0]/2 - $sizeWatemark[0]/2,$spacing];
                break;
            case 3: //右上
                $pos = [$sizeImage[0]-($sizeWatemark[0]+$spacing),$spacing];
                break;
            case 4: //中间居左
                $pos = [$spacing,$sizeImage[1]/2 -  $sizeWatemark[1]/2];
                break;
            case 5: //居中
                $pos = [$sizeImage[0]/2 - $sizeWatemark[0]/2,$sizeImage[1]/2 -  $sizeWatemark[1]/2];
                break;
            case 6: //中间居右
                $pos = [$sizeImage[0] - ($sizeWatemark[0] + $spacing),$sizeImage[1]/2 -  $sizeWatemark[1]/2];
                break;
            case 7://左下
                $pos = [$spacing,$sizeImage[1]-($sizeWatemark[1]+$spacing)];
                break;
            case 8:  //底部居中
                $pos = [$sizeImage[0]/2 - $sizeWatemark[0]/2,$sizeImage[1]-($sizeWatemark[1] + $spacing)];
                break;
            case 9://右下
                $pos = [$sizeImage[0] - ($sizeWatemark[0] + $spacing),$sizeImage[1]-($sizeWatemark[1] + $spacing)];
                break;
            default:
                return false;
//                    throw new \ErrorException('请选择水印位置');
                break;
        }
        Image::watermark($image,$watemarkImage,$pos)
            ->save($image);
    }


}