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编程单增加零件图号

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胡尧
2025-05-15 08:45:02 +08:00
parent c898e02860
commit f6d8cb6267
1 changed files with 25 additions and 8 deletions
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33
sf_base/commons/common.py
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@@ -103,12 +103,19 @@ class PrintingUtils(models.AbstractModel):
self.send_to_printer(host, port, zpl_code) self.send_to_printer(host, port, zpl_code)
def add_qr_code_to_pdf(self, pdf_path:str, content:str, buttom_text:Optional[str]=False): def add_qr_code_to_pdf(
self,
pdf_path:str,
content:str,
qr_code_buttom_text:Optional[str]=False,
buttom_text:Optional[str]=False,
):
""" """
在PDF文件中添加二维码 在PDF文件中添加二维码
:param pdf_path: PDF文件路径 :param pdf_path: PDF文件路径
:param content: 二维码内容 :param content: 二维码内容
:param buttom_text: 二维码下方文字 :param qr_code_buttom_text: 二维码下方文字
:param buttom_text: 正文下方文字
:return: 是否成功 :return: 是否成功
""" """
if not os.path.exists(pdf_path): if not os.path.exists(pdf_path):
@@ -156,8 +163,9 @@ class PrintingUtils(models.AbstractModel):
existing_pdf = PdfFileReader(original_file) existing_pdf = PdfFileReader(original_file)
output = PdfFileWriter() output = PdfFileWriter()
# 处理第一页 # 处理最后一页
page = existing_pdf.getPage(0) last_page = existing_pdf.getNumPages() - 1
page = existing_pdf.getPage(last_page)
# 获取页面尺寸 # 获取页面尺寸
page_width = float(page.mediaBox.getWidth()) page_width = float(page.mediaBox.getWidth())
page_height = float(page.mediaBox.getHeight()) page_height = float(page.mediaBox.getHeight())
@@ -179,14 +187,22 @@ class PrintingUtils(models.AbstractModel):
qr_y = margin + 20 # 将二维码向上移动一点，为文字留出空间 qr_y = margin + 20 # 将二维码向上移动一点，为文字留出空间
c.drawImage(qr_temp_path, page_width - qr_size - margin, qr_y, width=qr_size, height=qr_size) c.drawImage(qr_temp_path, page_width - qr_size - margin, qr_y, width=qr_size, height=qr_size)
if buttom_text: if qr_code_buttom_text:
# 在二维码下方绘制文字 # 在二维码下方绘制文字
text = buttom_text text = qr_code_buttom_text
text_width = c.stringWidth(text, "SimSun" if font_found else "Helvetica", 10) # 准确计算文字宽度 text_width = c.stringWidth(text, "SimSun" if font_found else "Helvetica", 10) # 准确计算文字宽度
text_x = page_width - qr_size - margin + (qr_size - text_width) / 2 # 文字居中对齐 text_x = page_width - qr_size - margin + (qr_size - text_width) / 2 # 文字居中对齐
text_y = margin + 20 # 文字位置靠近底部 text_y = margin + 20 # 文字位置靠近底部
c.drawString(text_x, text_y, text) c.drawString(text_x, text_y, text)
if buttom_text:
# 在下方中间添加文字
text = button_text
text_width = c.stringWidth(text, "SimSun" if font_found else "Helvetica", 10) # 准确计算文字宽度
text_x = (page_width - text_width) / 2 # 文字居中对齐
text_y = margin + 20 # 文字位置靠近底部
c.drawString(text_x, text_y, text)
c.save() c.save()
# 读取带有二维码的临时PDF # 读取带有二维码的临时PDF
@@ -196,12 +212,13 @@ class PrintingUtils(models.AbstractModel):
# 合并原始页面和二维码页面 # 合并原始页面和二维码页面
page.mergePage(qr_page) page.mergePage(qr_page)
output.addPage(page)
# 添加剩余的页面 # 添加剩余的页面
for i in range(1, existing_pdf.getNumPages()): for i in range(0, last_page):
output.addPage(existing_pdf.getPage(i)) output.addPage(existing_pdf.getPage(i))
output.addPage(page)
# 保存最终的PDF到一个临时文件 # 保存最终的PDF到一个临时文件
final_temp_path = pdf_path + '.tmp' final_temp_path = pdf_path + '.tmp'
with open(final_temp_path, "wb") as output_file: with open(final_temp_path, "wb") as output_file: