优化画图工具类,添加合并图片的方法

src/Tools/Drawer.php

@@ -46,11 +46,12 @@ class Drawer
      */
     public function downloadWebImage($url, $path = null)
     {
+        $url = $this->parseUrl($url);
         // excel画图中下载图片时对图片名做urlencode处理,防止中文名不能正常画图片的bug
-        $filename = urlencode(trim(pathinfo($url, PATHINFO_FILENAME)));
+        $filename = trim(pathinfo($url, PATHINFO_FILENAME));
         $ext = strtolower(pathinfo($url, PATHINFO_EXTENSION));
         $filename = "$filename.$ext";
-        $url = $this->parseUrl($url);
+
         $path = $this->rootPath . '/download/images/' . ($path ?: $this->savePath);
         if (!is_dir($path)) {
             // 判断路径是否存在,不存在,则创建
@@ -65,8 +66,7 @@ class Drawer
             curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30);
             $file = curl_exec($ch);
             curl_close($ch);
-
-            $resource = fopen($path . '/' . $filename, 'a');
+            $resource = fopen($filePath, 'a');
             fwrite($resource, $file);
             fclose($resource);
         }
@@ -75,9 +75,12 @@ class Drawer
 
     private function parseUrl($url)
     {
-        $url = rawurlencode($url);
-        $url = str_replace("%3A", ":", $url);
-        return str_replace("%2F", "/", $url);
+        if (!preg_match('/%[0-9A-Z]{2}/', $url)) {
+            $url = rawurlencode($url);
+            $url = str_replace("%3A", ":", $url);
+            $url = str_replace("%2F", "/", $url);
+        }
+        return $url;
     }
 
     /**
@@ -151,6 +154,64 @@ class Drawer
         return $res ? $imgNewPath : false;
     }
 
+    /**
+     * 拼图
+     * @param $imgPathList
+     * @return bool|string
+     */
+    public function mergeImages($imgPathList)
+    {
+        $maxW = $maxH = 0;
+        $filenameList = [];
+        $imageList = [];
+        foreach ($imgPathList as $k => $path) {
+            $path = $this->parseImagePath($path);
+            $imgPathInfo = pathinfo($path);
+            $filename = $imgPathInfo['filename']; // 图片名称
+            $ext = $imgPathInfo['extension']; // 图片扩展名
+            [$w, $h] = getimagesize($path); // 图片大小
+            $imageList[$k] = [
+                'path' => $path,
+                'filename' => $filename,
+                'ext' => $ext,
+                'w' => $w,
+                'h' => $h,
+            ];
+            $filenameList[] = $filename;
+            $maxW += $w;
+            if ($maxH < $h) {
+                $maxH = $h;
+            }
+        }
+        $filenameList = collect($filenameList)->unique()->sort()->toArray();
+        $filename = implode('_', $filenameList);
+        $savePath = $this->rootPath . '/download/merge/' . $this->savePath;
+        if (!is_dir($savePath)) {
+            // 判断路径是否存在,不存在,则创建
+            mkdir($savePath, 0777, true);
+        }
+        $imgNewPath = $savePath . '/' . $filename . '.png';
+        if (file_exists($imgNewPath)) {
+            return $imgNewPath;
+        }
+        // 黑色背景图片
+        $im = @imagecreatetruecolor($maxW, $maxH) or die ("Cannot Initialize new GD image stream");
+        // 为真彩色画布创建背景，再设置为透明
+        $color = imagecolorallocate($im, 0, 0, 0);
+        imagefill($im, 0, 0, $color);
+        imageColorTransparent($im, $color);
+        // 循环画图片
+        $dstX = 0;
+        foreach ($imageList as $item) {
+            $resource = imagecreatefromstring(file_get_contents($item['path']));
+            imagecopy($im, $resource, $dstX, 0, 0, 0, $item['w'], $item['h']);
+            $dstX += $item['w'];
+        }
+        $res = imagepng($im, $imgNewPath);
+        imagedestroy($im);
+        return $res ? $imgNewPath : false;
+    }
+
     /**
      * 画图片
      * @param string $path 图片路径
@@ -167,7 +228,7 @@ class Drawer
                 $path = $this->addBoard($path, $boardPx);
             }
             $drawing = new Drawing();
-            $drawing->setPath($path)->setCoordinates($p)->setHeight($h)->setWorksheet($sheet);
+            $drawing->setPath($path)->setCoordinates($p)->setHeight($h)->setOffsetX(1)->setOffsetY(1)->setWorksheet($sheet);
         } catch (Exception $e) {
             put_log($e->getMessage());
         }