feat: 支持将长消息转换成图片进行回复

pkg/utils/text2img.py

@@ -0,0 +1,163 @@
+from PIL import Image, ImageDraw, ImageFont
+import re
+import os
+
+text_render_font = ImageFont.truetype("res/simhei.ttf", 32, encoding="utf-8")
+
+
+def indexNumber(path=''):
+    """
+    查找字符串中数字所在串中的位置
+    :param path:目标字符串
+    :return:<class 'list'>: <class 'list'>: [['1', 16], ['2', 35], ['1', 51]]
+    """
+    kv = []
+    nums = []
+    beforeDatas = re.findall('[\d]+', path)
+    for num in beforeDatas:
+        indexV = []
+        times = path.count(num)
+        if times > 1:
+            if num not in nums:
+                indexs = re.finditer(num, path)
+                for index in indexs:
+                    iV = []
+                    i = index.span()[0]
+                    iV.append(num)
+                    iV.append(i)
+                    kv.append(iV)
+            nums.append(num)
+        else:
+            index = path.find(num)
+            indexV.append(num)
+            indexV.append(index)
+            kv.append(indexV)
+    # 根据数字位置排序
+    indexSort = []
+    resultIndex = []
+    for vi in kv:
+        indexSort.append(vi[1])
+    indexSort.sort()
+    for i in indexSort:
+        for v in kv:
+            if i == v[1]:
+                resultIndex.append(v)
+    return resultIndex
+
+
+def get_size(file):
+    # 获取文件大小:KB
+    size = os.path.getsize(file)
+    return size / 1024
+
+
+def get_outfile(infile, outfile):
+    if outfile:
+        return outfile
+    dir, suffix = os.path.splitext(infile)
+    outfile = '{}-out{}'.format(dir, suffix)
+    return outfile
+
+
+def compress_image(infile, outfile='', kb=100, step=20, quality=90):
+    """不改变图片尺寸压缩到指定大小
+    :param infile: 压缩源文件
+    :param outfile: 压缩文件保存地址
+    :param mb: 压缩目标,KB
+    :param step: 每次调整的压缩比率
+    :param quality: 初始压缩比率
+    :return: 压缩文件地址，压缩文件大小
+    """
+    o_size = get_size(infile)
+    if o_size <= kb:
+        return infile
+    outfile = get_outfile(infile, outfile)
+    while o_size > kb:
+        im = Image.open(infile)
+        im.save(outfile, quality=quality)
+        if quality - step < 0:
+            break
+        quality -= step
+        o_size = get_size(outfile)
+    return outfile, get_size(outfile)
+
+
+def text_to_image(text_str, save_as="temp.png", width=800):
+    global text_render_font
+    # 文字分行
+    
+    # 分行
+    lines = text_str.split('\n')
+
+    # 计算并分割
+    final_lines = []
+
+    text_width = width-40
+    for line in lines:
+        # 如果长了就分割
+        line_width = text_render_font.getlength(line)
+        if line_width < text_width:
+            final_lines.append(line)
+            continue
+        else:
+            rest_text = line
+            while True:
+                # 分割最前面的一行
+                point = int(len(rest_text) * (text_width / line_width))
+
+                # 检查断点是否在数字中间
+                numbers = indexNumber(rest_text)
+
+                for number in numbers:
+                    if number[1] < point < number[1] + len(number[0]) and number[1] != 0:
+                        point = number[1]
+                        break
+
+                final_lines.append(rest_text[:point])
+                rest_text = rest_text[point:]
+                line_width = text_render_font.getlength(rest_text)
+                if line_width < text_width:
+                    final_lines.append(rest_text)
+                    break
+                else:
+                    continue
+    # 准备画布
+    img = Image.new('RGBA', (width, max(280, len(final_lines) * 35 + 35)), (255, 255, 255, 255))
+    draw = ImageDraw.Draw(img, mode='RGBA')
+
+    
+    # 绘制正文
+    line_number = 0
+    offset_x = 20
+    offset_y = 20
+    for final_line in final_lines:
+        draw.text((offset_x, offset_y + 35 * line_number), final_line, fill=(0, 0, 0), font=text_render_font)
+        # 遍历此行,检查是否有emoji
+        idx_in_line = 0
+        for ch in final_line:
+            # if self.is_emoji(ch):
+            #     emoji_img_valid = ensure_emoji(hex(ord(ch))[2:])
+            #     if emoji_img_valid:  # emoji图像可用,绘制到指定位置
+            #         emoji_image = Image.open("emojis/{}.png".format(hex(ord(ch))[2:]), mode='r').convert('RGBA')
+            #         emoji_image = emoji_image.resize((32, 32))
+
+            #         x, y = emoji_image.size
+
+            #         final_emoji_img = Image.new('RGBA', emoji_image.size, (255, 255, 255))
+            #         final_emoji_img.paste(emoji_image, (0, 0, x, y), emoji_image)
+
+            #         img.paste(final_emoji_img, box=(int(offset_x + idx_in_line * 32), offset_y + 35 * line_number))
+
+            # 检查字符占位宽
+            char_code = ord(ch)
+            if char_code >= 127:
+                idx_in_line += 1
+            else:
+                idx_in_line += 0.5
+
+        line_number += 1
+
+    
+    img.save(save_as)
+
+    return save_as