<?php
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namespace app\common\service\qrcode;
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use app\common\model\settings\Setting as SettingModel;
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use Endroid\QrCode\QrCode;
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use Grafika\Color;
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use Grafika\Grafika;
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use app\common\model\plus\agent\Setting;
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/**
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* 分销二维码
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*/
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class PosterService extends Base
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{
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// 分销商用户信息
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private $agent;
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// 分销商海报设置
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private $config;
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// 来源
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private $source;
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/**
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* 构造方法
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*/
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public function __construct($agent, $source)
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{
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parent::__construct();
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// 分销商用户信息
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$this->agent = $agent;
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$this->source = $source;
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// 分销商海报设置
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$this->config = Setting::getItem('qrcode', $agent['app_id']);
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}
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/**
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* 获取分销二维码
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*/
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public function getImage()
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{
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if (file_exists($this->getPosterPath())) {
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return $this->getPosterUrl();
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}
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// 小程序id
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$appId = $this->agent['app_id'];
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// 1. 下载背景图
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$backdrop = $this->saveTempImage($appId, $this->config['backdrop']['src'], 'backdrop');
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// 2. 下载用户头像
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$avatarUrl = $this->saveTempImage($appId, $this->agent['user']['avatarUrl'], 'avatar');
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$qrcode = null;
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if($this->source == 'wx') {
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// 3. 下载小程序码
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$scene = 'uid:' . $this->agent['user_id'];
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$qrcode = $this->saveQrcode($appId, $scene, 'pages/index/index');
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} else if($this->source == 'mp' || $this->source == 'h5'){
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$scene = 'uid:' . $this->agent['user_id'];
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$url = base_url().'h5/pages/index/index?referee_id='.$this->agent['user_id'].'&app_id='.$appId;
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$qrcode = new QrCode($url);
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$qrcode = $this->saveMpQrcode($qrcode, $appId, $scene, 'image_mp');
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} else if($this->source == 'app'){
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$appshare = SettingModel::getItem('appshare');
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if($appshare['type'] == 1){
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$down_url = $appshare['open_site']. '?app_id='.$this->agent['app_id'].'&referee_id=' .$this->agent['user_id'];
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}else{
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//下载页
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if($appshare['bind_type'] == 1){
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$down_url = $appshare['down_url'];
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}else{
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$down_url = base_url(). "/index.php/api/user.useropen/invite?app_id=".$this->agent['app_id']."&referee_id=" .$this->agent['user_id'];
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}
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}
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$scene = 'uid:' . $this->agent['user_id'];
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$qrcode = new QrCode($down_url);
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$qrcode = $this->saveMpQrcode($qrcode, $appId, $scene, 'image_app');
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}
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// 4. 拼接海报图
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return $this->savePoster($backdrop, $avatarUrl, $qrcode);
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}
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/**
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* 海报图文件路径
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*/
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private function getPosterPath()
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{
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// 保存路径
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$tempPath = root_path('public') . 'temp/' . $this->agent['app_id'] . '/' . $this->source. '/';
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!is_dir($tempPath) && mkdir($tempPath, 0755, true);
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return $tempPath . $this->getPosterName();
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}
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/**
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* 海报图文件名称
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*/
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private function getPosterName()
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{
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return 'poster_' . md5($this->agent['user_id']) . '.png';
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}
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/**
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* 海报图url
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*/
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private function getPosterUrl()
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{
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return \base_url() . 'temp/' . $this->agent['app_id'] . '/' .$this->source . '/' . $this->getPosterName() . '?t=' . time();
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}
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/**
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* 拼接海报图
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*/
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private function savePoster($backdrop, $avatarUrl, $qrcode)
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{
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// 实例化图像编辑器
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$editor = Grafika::createEditor(['Gd']);
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// 打开海报背景图
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$editor->open($backdropImage, $backdrop);
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// 生成圆形用户头像
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$this->config['avatar']['style'] === 'circle' && $this->circular($avatarUrl, $avatarUrl);
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// 打开用户头像
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$editor->open($avatarImage, $avatarUrl);
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// 重设用户头像宽高
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$avatarWidth = $this->config['avatar']['width'] * 2;
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$editor->resizeExact($avatarImage, $avatarWidth, $avatarWidth);
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// 用户头像添加到背景图
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$avatarX = $this->config['avatar']['left'] * 2;
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$avatarY = $this->config['avatar']['top'] * 2;
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$editor->blend($backdropImage, $avatarImage, 'normal', 1.0, 'top-left', $avatarX, $avatarY);
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// 生成圆形小程序码，仅小程序支持
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if($this->source == 'wx'){
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$this->config['qrcode']['style'] === 'circle' && $this->circular($qrcode, $qrcode);
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}
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// 打开小程序码
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$editor->open($qrcodeImage, $qrcode);
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// 重设小程序码宽高
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$qrcodeWidth = $this->config['qrcode']['width'] * 2;
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$editor->resizeExact($qrcodeImage, $qrcodeWidth, $qrcodeWidth);
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// 小程序码添加到背景图
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$qrcodeX = $this->config['qrcode']['left'] * 2;
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$qrcodeY = $this->config['qrcode']['top'] * 2;
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$editor->blend($backdropImage, $qrcodeImage, 'normal', 1.0, 'top-left', $qrcodeX, $qrcodeY);
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// 写入用户昵称
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$fontSize = $this->config['nickName']['fontSize'] * 2;
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$fontX = $this->config['nickName']['left'] * 2;
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$fontY = $this->config['nickName']['top'] * 2;
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$Color = new Color($this->config['nickName']['color']);
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$fontPath = Grafika::fontsDir() . '/' . 'st-heiti-light.ttc';
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//添加昵称居中功能 by yj
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$box = imageftbbox($fontSize,0,$fontPath,$this->agent['user']['nickName']);
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if($box && !empty($this->config['nickName']['style']) && $this->config['nickName']['style'] == 'center'){
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$min_x = min(array($box[0],$box[2],$box[4],$box[6]));
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$max_x = max(array($box[0],$box[2],$box[4],$box[6]));
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$width = $max_x - $min_x;//宽
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$fontX = round((750 - $width) / 2);
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}
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$editor->text($backdropImage, $this->agent['user']['nickName'], $fontSize, $fontX, $fontY, $Color, $fontPath);
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// 保存图片
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$editor->save($backdropImage, $this->getPosterPath());
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return $this->getPosterUrl();
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}
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/**
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* 生成圆形图片
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*/
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private function circular($imgpath, $saveName = '')
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{
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$srcImg = imagecreatefromstring(file_get_contents($imgpath));
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$w = imagesx($srcImg);
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$h = imagesy($srcImg);
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$w = $h = min($w, $h);
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$newImg = imagecreatetruecolor($w, $h);
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// 这一句一定要有
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imagesavealpha($newImg, true);
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// 拾取一个完全透明的颜色,最后一个参数127为全透明
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$bg = imagecolorallocatealpha($newImg, 255, 255, 255, 127);
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imagefill($newImg, 0, 0, $bg);
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$r = $w / 2; //圆半径
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for ($x = 0; $x < $w; $x++) {
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for ($y = 0; $y < $h; $y++) {
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$rgbColor = imagecolorat($srcImg, $x, $y);
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if (((($x - $r) * ($x - $r) + ($y - $r) * ($y - $r)) < ($r * $r))) {
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imagesetpixel($newImg, $x, $y, $rgbColor);
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}
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}
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}
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// 输出图片到文件
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imagepng($newImg, $saveName);
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// 释放空间
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imagedestroy($srcImg);
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imagedestroy($newImg);
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}
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}
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