新增画布类

crmeb/crmeb/utils/Canvas.php

@@ -0,0 +1,301 @@
+<?php
+
+namespace crmeb\utils;
+
+use crmeb\traits\LogicTrait;
+use EasyWeChat\Core\Exceptions\RuntimeException;
+
+/**
+ * Class Canvas
+ * @package crmeb\utils
+ * @method $this setFileName(string $fileName) 设置文件名
+ * @method $this setPath(string $path) 设置存放路径
+ * @method $this setImageType(string $imageType) 设置图片类型
+ * @method $this setBackgroundHeight(int $backgroundHeight) 设置背景高
+ * @method $this setBackgroundWidth(int $backgroundWidth) 设置背景宽
+ * @method $this setFontSize(int $fontSize) 设置字体大小
+ * @method $this setFontColor($fontColor) 设置字体颜色
+ * @method $this setFontLeft(int $fontLeft) 设置字体距离左侧位置
+ * @method $this setFontTop(int $fontTop) 设置字体距离顶部位置
+ * @method $this setFontText(string $fontText) 设置文字
+ * @method $this setFontPath(string $fontPath) 设置字体文件路径
+ * @method $this setFontAngle(int $fontAngle) 设置字体角度
+ * @method $this setImageUrl(string $imageUrl) 设置图片路径
+ * @method $this setImageLeft(int $imageLeft) 设置图片距离左侧位置
+ * @method $this setImageTop(int $imageTop) 设置图片距离顶部位置
+ * @method $this setImageRight(int $imageRight) 设置图片距离左侧位置
+ * @method $this setImageStream(bool $imageStream) 设置图片是否未流文件
+ * @method $this setImageBottom(int $imageBottom) 设置图片距离底部位置
+ * @method $this setImageWidth(int $imageWidth) 设置图片宽
+ * @method $this setImageHeight(int $imageHeight) 设置图片高
+ * @method $this setImageOpacity(int $imageOpacity) 设置图片透明度
+ */
+class Canvas
+{
+    use LogicTrait;
+
+    const FONT = 'static/font/Alibaba-PuHuiTi-Regular.otf';
+
+    /**
+     * 背景宽
+     * @var int
+     */
+    protected $backgroundWidth = 600;
+
+    /**
+     * 背景高
+     * @var int
+     */
+    protected $backgroundHeight = 1000;
+
+    /**
+     * 图片类型
+     * @var string
+     */
+    protected $imageType = 'jpeg';
+
+    /**
+     * 保存地址
+     * @var string
+     */
+    protected $path = 'uploads/routine/';
+
+    /**
+     * 文件名
+     * @var string
+     */
+    protected $fileName;
+
+    /**
+     * 规则
+     * @var array
+     */
+    protected $propsRule = ['fileName', 'path', 'imageType', 'backgroundHeight', 'backgroundWidth'];
+
+    /**
+     * 字体数据集
+     * @var array
+     */
+    protected $fontValue = [];
+
+    /**
+     * 字体默认可设置vlaue
+     * @var array
+     */
+    protected $defaultFontValue = [
+        'fontSize' => 0,
+        'fontColor' => '231,180,52',
+        'fontLeft' => 0,
+        'fontTop' => 0,
+        'fontText' => '',
+        'fontPath' => self::FONT,
+        'fontAngle' => 0,
+    ];
+
+    protected $defaultFont;
+    /**
+     * 图片数据集
+     * @var array
+     */
+    protected $imageValue = [];
+
+    /**
+     * 图片可设置属性
+     * @var array
+     */
+    protected $defaultImageValue = [
+        'imageUrl' => '',
+        'imageLeft' => 0,
+        'imageTop' => 0,
+        'imageRight' => 0,
+        'imageBottom' => 0,
+        'imageWidth' => 0,
+        'imageHeight' => 0,
+        'imageOpacity' => 0,
+        'imageStream' => false,
+    ];
+
+    protected $defaultImage;
+
+    protected function __construct()
+    {
+        $this->defaultImage = $this->defaultImageValue;
+        $this->defaultFont = $this->defaultFontValue;
+    }
+
+    /**
+     * 创建一个新图象
+     * @param string $file
+     * @return array
+     */
+    public function createFrom(string $file): array
+    {
+        $imagesize = getimagesize($file);
+        $type = image_type_to_extension($imagesize[2], true);
+        switch ($type) {
+            case '.png':
+                $canvas = imagecreatefrompng($file);
+                break;
+            case '.jpeg':
+                $canvas = imagecreatefromjpeg($file);
+                break;
+            case '.jpg':
+                $canvas = imagecreatefromjpeg($file);
+                break;
+            case '.gif':
+                $canvas = imagecreatefromgif($file);
+                break;
+        }
+        return [$canvas, $imagesize];
+
+    }
+
+    /**
+     * 放入字体
+     * @return $this
+     */
+    public function pushFontValue()
+    {
+        array_push($this->fontValue, $this->defaultFontValue);
+        $this->defaultFontValue = $this->defaultFont;
+        return $this;
+    }
+
+    /**
+     * 放入图片
+     * @return $this
+     */
+    public function pushImageValue()
+    {
+        array_push($this->imageValue, $this->defaultImageValue);
+        $this->defaultImageValue = $this->defaultImage;
+        return $this;
+    }
+
+    /**
+     * 创建背景
+     * @param int $w
+     * @param int $h
+     * @return false|resource
+     */
+    public function createTrueColor(int $w = 0, int $h = 0)
+    {
+        return imagecreatetruecolor($w ? $w : $this->backgroundWidth, $h ? $h : $this->backgroundHeight);
+    }
+
+
+    /**
+     * 开始画图
+     * @param bool $force 生成错误时是否抛出异常
+     * @return string
+     * @throws \Exception
+     */
+    public function starDrawChart(bool $force = false): string
+    {
+        try {
+            $image = $this->createTrueColor();
+
+            foreach ($this->imageValue as $item) {
+                if ($item['imageUrl']) {
+                    if ($item['imageStream']) {
+                        $res = getimagesizefromstring($item['imageUrl']);
+                        $mer = imagecreatefromstring($item['imageUrl']);
+                    } else {
+                        [$mer, $res] = $this->createFrom($item['imageUrl']);
+                    }
+                    if ($mer && $res) {
+                        $scrW = $res[0] ?? 0;
+                        $scrH = $res[1] ?? 0;
+                        $imageWidth = $item['imageWidth'] ?: $scrW;
+                        $imageHeight = $item['imageHeight'] ?: $scrH;
+                        imagecopyresampled($image, $mer, $item['imageLeft'], $item['imageTop'], $item['imageRight'], $item['imageBottom'], $imageWidth, $imageHeight, $scrW, $scrH);
+                        unset($scrW, $scrH, $imageWidth, $imageHeight, $res, $mer);
+                    }
+
+                }
+            }
+
+            foreach ($this->fontValue as $val) {
+                if (!is_array($val['fontColor']))
+                    $fontColor = explode(',', $val['fontColor']);
+                else
+                    $fontColor = $val['fontColor'];
+                if (count($fontColor) < 3)
+                    throw new RuntimeException('fontColor 必须为三原色');
+                [$r, $g, $b] = $fontColor;
+                $fontColor = imagecolorallocate($image, $r, $g, $b);
+                $val['fontLeft'] = $val['fontLeft'] < 0 ? $this->backgroundWidth - abs($val['fontLeft']) : $val['fontLeft'];
+                $val['fontTop'] = $val['fontTop'] < 0 ? $this->backgroundHeight - abs($val['fontTop']) : $val['fontTop'];
+                imagettftext($image, $val['fontSize'], $val['fontAngle'], $val['fontLeft'], $val['fontTop'], $fontColor, $val['fontPath'], $val['fontText']);
+                unset($r, $g, $b, $fontColor);
+            }
+            if (is_null($this->fileName)) {
+                $this->fileName = md5(time());
+            }
+
+            $strlen = stripos($this->path, 'uploads');
+            $path = $this->path;
+            if ($strlen !== false) {
+                $path = substr($this->path, 8);
+            }
+            make_path($path, 4, true);
+
+            $save_file = $this->path . $this->fileName . '.' . $this->imageType;
+            switch ($this->imageType) {
+                case 'jpeg':
+                case 'jpg':
+                    imagejpeg($image, $save_file, 70);
+                    break;
+                case 'png':
+                    imagepng($image, $save_file, 70);
+                    break;
+                case 'gif':
+                    imagegif($image, $save_file, 70);
+                    break;
+                default:
+                    throw new \RuntimeException('Incorrect type set:' . $this->imageType);
+            }
+            imagedestroy($image);
+
+            return $save_file;
+        } catch (\Throwable $e) {
+            if ($force || $e instanceof \RuntimeException)
+                throw new \Exception($e->getMessage());
+            return '';
+        }
+    }
+
+    /**
+     * Magic access..
+     *
+     * @param $method
+     * @param $args
+     * @return $this
+     */
+    public function __call($method, $args): self
+    {
+
+        if (0 === stripos($method, 'set') && strlen($method) > 3) {
+            $method = lcfirst(substr($method, 3));
+        }
+
+        $imageValueKes = array_keys($this->defaultImageValue);
+        $fontValueKes = array_keys($this->defaultFontValue);
+
+        if (in_array($method, $imageValueKes)) {
+            $this->defaultImageValue[$method] = array_shift($args);
+        }
+
+        if (in_array($method, $fontValueKes)) {
+            $this->defaultFontValue[$method] = array_shift($args);
+        }
+
+        if (in_array($method, $this->propsRule)) {
+            $this->{$method} = array_shift($args);
+        }
+
+        return $this;
+    }
+
+
+}