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app/model/image/GdClass.php

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+<?php
+/**
+ * Created by PhpStorm.
+ * User: Administrator
+ * Date: 2022-06-24
+ * Time: 12:23
+ */
+
+namespace app\model\image;
+
+use Intervention\Image\ImageManagerStatic as Image;
+
+/**
+ * Gd 图片策略类(也就是默认)
+ * Class ImagickClass
+ * @package app\model\upload
+ */
+class GdClass
+{
+
+
+    /**
+     * 获取图片实例
+     * @param $path
+     * @return mixed
+     */
+    public function open($path)
+    {
+
+        $image = Image::make($path);
+        return $image;
+    }
+
+    /**
+     * 图片保存
+     * @param $image
+     * @param $new_file
+     * @param $compress
+     * @return mixed
+     */
+    public function save($image, $new_file, $compress)
+    {
+        return $image->save($new_file, $compress);
+    }
+
+    public function getImageParam($image)
+    {
+        $width = $image->width();//图片宽
+        $height = $image->height();//图片高
+        return [
+            'width' => $width,
+            'height' => $height
+        ];
+    }
+
+    /**
+     * 文字水印
+     * @param $image
+     * @param $text
+     * @param $x
+     * @param $y
+     * @param $size
+     * @param $color
+     * @param $align
+     * @param $valign
+     * @param $angle
+     * @return mixed
+     */
+    public function textWater($image, $text, $x, $y, $size, $color, $align, $valign, $angle)
+    {
+//        $x = $image->width()/2;
+//        $y = $image->height()/2;
+        $image->text($text, $x, $y, function($font) use ($size, $color, $align, $valign, $angle) {
+//                        $font->file($this->config["water"]["watermark_text_file"]);//设置字体文件位置
+            $font->file(PUBLIC_PATH . 'static/font/Microsoft.ttf');
+            $font->size($size);//设置字号大小
+            $font->color($color);//设置字号颜色
+            $font->align($align);//设置字号水平位置
+            $font->valign($valign);//设置字号 垂直位置
+            $font->angle($angle);//设置字号倾斜角度
+        });
+        return $image;
+    }
+
+    /**
+     * 图片水印
+     * @param $image
+     * @param $water_path
+     * @param $watermark_opacity
+     * @param $water_rotate
+     * @param $water_position
+     * @param $x
+     * @param $y
+     * @param $p  "缩放比例 0-100"
+     * @return mixed
+     */
+    public function imageWater($image, $water_path, $watermark_opacity, $water_rotate, $water_position, $x, $y, $p = null)
+    {
+        $watermark = Image::make($water_path);
+
+        //根据比率 计算缩放后的水印图大小
+        if(!is_null($p)){
+            $water_real_width = $watermark->width();
+            $water_real_height = $watermark->height();
+            $water_max_width = $image->width() * $p / 100;
+            $water_max_height = $image->height() * $p / 100;
+            if($water_max_height / $water_max_width < $water_real_height / $water_real_width){
+                $water_height = $water_max_height;
+                $water_width = $water_max_height / ($water_real_height / $water_real_width);
+            }else{
+                $water_width = $water_max_width;
+                $water_height = $water_max_width * ($water_real_height / $water_real_width);
+            }
+            $watermark = $watermark->resize($water_width, $water_height);
+        }
+
+        //dd($y, $p, [$water_real_width,$water_real_height], [$water_max_width,$water_max_height], [$water_width,$water_height]);
+
+        $watermark = $watermark->opacity($watermark_opacity)->rotate($water_rotate);
+        $image->insert($watermark, $water_position, $x, $y);
+        return $image;
+    }
+
+    /**
+     * 缩略图
+     * @param $image
+     * @param $width
+     * @param $height
+     * @param string $fit
+     * @param string $fill_color
+     * @return mixed
+     */
+    public function thumb($image, $width, $height, $fit = 'center', $fill_color = 'ffffff')
+    {
+
+
+        if (!empty($fit)) {
+            $image = $image->fit($width, $height, function($constraint) {
+//                $constraint->aspectRatio();
+//                $constraint->upsize();
+            });
+        } else {
+            $image = $image->resize($width, $height, function($constraint) {
+                $constraint->aspectRatio();
+                $constraint->upsize();
+            });
+        }
+        return $image;
+    }
+}