fix: Fixed the memory leak during image generation

starbot/painter/DynamicPicGenerator.py

@@ -317,6 +317,7 @@ class DynamicPicGenerator:
 
             auto_next_line(size[0])
             img.paste(pic, (x, y), pic)
+            pic.close()
             x = int(x + size[0])
 
         def draw_char(c: str, color: Union[Color, Tuple[int, int, int]] = Color.BLACK):
@@ -522,6 +523,10 @@ class DynamicPicGenerator:
         cover.paste(time, (13, cover.height - time.height - 14), time)
         cover.paste(tv, (cover.width - tv.width - 16, cover.height - tv.height - 5), tv)
 
+        mask.close()
+        time.close()
+        tv.close()
+
         cover_draw = ImageDraw.Draw(cover)
         normal_font = config.get("PAINTER_NORMAL_FONT")
         time_font = ImageFont.truetype(f"{cls.__resource_base_path}/resource/{normal_font}", 25)

starbot/painter/LiveReportGenerator.py

@@ -461,6 +461,7 @@ class LiveReportGenerator:
             unames: 昵称列表，按照数量列表降序排序
             counts: 数量列表，降序排序
             icon: 大航海图标
+            color: 大航海文字颜色
         """
         count = len(counts)
         if count == 0 or len(faces) != len(unames) or len(unames) != len(counts):
@@ -481,9 +482,9 @@ class LiveReportGenerator:
                 mask_round(faces[i].resize((face_size, face_size)).convert("RGBA")), (x + face_padding, face_padding)
             )
             if i != count - 1:
-                line.draw_img_alpha(icon, (x, 0))
+                line.draw_img_alpha(icon.copy(), (x, 0))
             else:
-                line.set_pos(x=x).draw_img_alpha(icon).set_pos(x=0)
+                line.set_pos(x=x).draw_img_alpha(icon.copy()).set_pos(x=0)
 
         for i, x in enumerate(xs):
             uname = limit_str_length(unames[i], 8)
@@ -523,9 +524,9 @@ class LiveReportGenerator:
 
         resource_base_path = os.path.dirname(os.path.dirname(__file__))
         icon_map = {
-            0: Image.open(f"{resource_base_path}/resource/governor.png").convert("RGBA"),
+            0: f"{resource_base_path}/resource/governor.png",
-            1: Image.open(f"{resource_base_path}/resource/commander.png").convert("RGBA"),
+            1: f"{resource_base_path}/resource/commander.png",
-            2: Image.open(f"{resource_base_path}/resource/captain.png").convert("RGBA")
+            2: f"{resource_base_path}/resource/captain.png"
         }
         color_map = {
             0: Color.CRIMSON,
@@ -548,9 +549,11 @@ class LiveReportGenerator:
                 faces = [x[0] for x in line]
                 unames = [x[1] for x in line]
                 counts = [x[2] for x in line]
+                icon = Image.open(icon_map[i]).convert("RGBA")
                 img.draw_img_alpha(
-                    cls.__get_guard_line_pic(pic, width, face_size, faces, unames, counts, icon_map[i], color_map[i])
+                    cls.__get_guard_line_pic(pic, width, face_size, faces, unames, counts, icon, color_map[i])
                 ).move_pos(0, -pic.row_space)
+                icon.close()
 
         return img.img
 

starbot/painter/PicGenerator.py

@@ -260,6 +260,7 @@ class PicGenerator:
         """
         在当前绘图坐标绘制一张图片，会自动移动绘图坐标至下次绘图适合位置
         也可手动传入绘图坐标，手动传入时不会移动绘图坐标
+        绘制结束后，传入图片会被自动调用 close 方法关闭
 
         Args:
             img: 图片路径或 Image 图片实例
@@ -273,12 +274,16 @@ class PicGenerator:
             self.move_pos(0, img.height + self.__ROW_SPACE)
         else:
             self.__canvas.paste(img, xy)
+
+        img.close()
+
         return self
 
     def draw_img_alpha(self, img: Union[str, Image.Image], xy: Optional[Tuple[int, int]] = None):
         """
         在当前绘图坐标绘制一张透明背景图片，会自动移动绘图坐标至下次绘图适合位置
         也可手动传入绘图坐标，手动传入时不会移动绘图坐标
+        绘制结束后，传入图片会被自动调用 close 方法关闭
 
         Args:
             img: 透明背景图片路径或 Image 图片实例
@@ -292,6 +297,9 @@ class PicGenerator:
             self.move_pos(0, img.height + self.__ROW_SPACE)
         else:
             self.__canvas.paste(img, xy, img)
+
+        img.close()
+
         return self
 
     def draw_img_with_border(self,
@@ -303,6 +311,7 @@ class PicGenerator:
         """
         在当前绘图坐标绘制一张图片并附带圆角矩形边框，会自动移动绘图坐标至下次绘图适合位置
         也可手动传入绘图坐标，手动传入时不会移动绘图坐标
+        绘制结束后，传入图片会被自动调用 close 方法关闭
 
         Args:
             img: 图片路径或 Image 图片实例
@@ -571,22 +580,23 @@ class PicGenerator:
 
     def save(self, path: str):
         """
-        保存图片
+        保存图片，终端操作，保存完成后会关闭图片，无法再对图片进行操作
 
         Args:
             path: 保存路径
         """
         self.__canvas.save(path)
-        return self
+        self.__canvas.close()
 
     def base64(self) -> str:
         """
-        结束绘图，获取 Base64 字符串
+        获取 Base64 字符串，终端操作，获取后会关闭图片，无法再对图片进行操作
 
         Returns:
             Base64 字符串
         """
         io = BytesIO()
         self.__canvas.save(io, format="PNG")
+        self.__canvas.close()
 
         return base64.b64encode(io.getvalue()).decode()

starbot/painter/RankingGenerator.py

@@ -59,6 +59,7 @@ class RankingGenerator:
         else:
             mask_draw.polygon(((0, 0), (0, height), (height, height)), 0)
         bar.putalpha(mask)
+        mask.close()
 
         return bar
 

starbot/utils/utils.py

@@ -127,6 +127,7 @@ def mask_round(img: Image.Image) -> Image.Image:
     img_width, img_height = img.size
     mask_draw.ellipse((0, 0, img_width, img_height), fill=255)
     img.putalpha(mask)
+    mask.close()
     return img
 
 
@@ -146,6 +147,7 @@ def mask_rounded_rectangle(img: Image.Image, radius: int = 10) -> Image.Image:
     img_width, img_height = img.size
     mask_draw.rounded_rectangle((0, 0, img_width, img_height), radius, 255)
     img.putalpha(mask)
+    mask.close()
     return img