python中fpdf的文本换行问题

Question

python中fpdf的文本换行问题

我已经使用 pyfpdf 模块生成了 PDF 文件，但我注意到每行中的文本未正确对齐。

我需要在单元格中进行文本换行才能自动调整。我尝试使用下面的代码生成固定大小的 PDF 文件，但它无法将文本混合在行中，您可以检查评论中的屏幕截图来查看问题。

我需要动态调整表列大小。请帮忙。

代码：


pdf = FPDF()
pdf.add_page()
pdf.set_font("Arial", size=8)

item_data = [['Item Name', 'Last clock', 'lastvalue'], ['cl Loaded Class Count', '0', '0'], ['cl Total Loaded Class Count', '0', '0'], ['cl Unloaded Class Count', '0', '0'], ['comp Name of the current JIT compiler', '0', ''], ['comp Accumulated time spent in compilation', '0', '0'], ['gc ConcurrentMarkSweep number of collections per second', '0', '0'], ['gc ConcurrentMarkSweep accumulated time spent in collection', '0', '0'], ['gc Copy number of collections per second', '0', '0'], ['gc Copy accumulated time spent in collection', '0', '0'], ['gc MarkSweepCompact number of collections per second', '0', '0'], ['gc MarkSweepCompact accumulated time spent in collection', '0', '0'], ['gc PS MarkSweep number of collections per second', '0', '0'], ['gc PS MarkSweep accumulated time spent in collection', '0', '0'], ['gc PS Scavenge number of collections per second', '0', '0'], ['gc PS Scavenge accumulated time spent in collection', '0', '0'], ['gc ParNew number of collections per second', '0', '0'], ['gc ParNew accumulated time spent in collection', '0', '0'], ['mem Heap Memory committed', '0', '0'], ['mem Heap Memory max', '0', '0'], ['mem Heap Memory used', '0', '0'], ['mem Non-Heap Memory committed', '0', '0'], ['mem Non-Heap Memory max', '0', '0'], ['mem Non-Heap Memory used', '0', '0'], ['mem Object Pending Finalization Count', '0', '0'], ['mp CMS Old Gen committed', '0', '0'], ['mp CMS Old Gen max', '0', '0'], ['mp CMS Old Gen used', '0', '0'], ['mp CMS Perm Gen committed', '0', '0'], ['mp CMS Perm Gen max', '0', '0'], ['mp CMS Perm Gen used', '0', '0'], ['mp Code Cache committed', '0', '0'], ['mp Code Cache max', '0', '0'], ['mp Code Cache used', '0', '0'], ['mp PS Old Gen committed', '0', '0'], ['mp PS Old Gen max', '0', '0'], ['mp PS Old Gen used', '0', '0'], ['mp PS Perm Gen committed', '0', '0'], ['mp PS Perm Gen max', '0', '0'], ['mp PS Perm Gen used', '0', '0'], ['mp Perm Gen committed', '0', '0'], ['mp Perm Gen max', '0', '0'], ['mp Perm Gen used', '0', '0'], ['mp Tenured Gen committed', '0', '0'], ['mp Tenured Gen max', '0', '0'], ['mp Tenured Gen used', '0', '0'], ['os Max File Descriptor Count', '0', '0'], ['os Open File Descriptor Count', '0', '0'], ['os Process CPU Load', '0', '0'], ['jvm Uptime', '0', '0'], ['jvm Name', '0', ''], ['jvm Version', '0', ''], ['th Daemon Thread Count', '0', '0'], ['th Peak Thread Count', '0', '0'], ['th Thread Count', '0', '0'], ['th Total Started Thread Count', '0', '0']]


col_width = pdf.w / 3.25
print(col_width)
row_height = pdf.font_size
for row in item_data:
    for item in row:
        spacing=1.5
        pdf.cell(col_width, row_height*spacing,txt=item, border=1)
    pdf.ln(row_height*spacing)
pdf.output("stack.pdf")

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Answer 1

Mer*_*tor 0

使用andmulti_cell()代替cell()ln=3max_line_height=pdf.font_size

ln (int)：指示调用后当前位置应该去哪里。可能的值有：0: 位于右下角；1: 到下一行的开头；2：下方具有相同的水平偏移；3：向右，具有相同的垂直偏移。默认值：0。

max_line_height (int):可选生成的每个子单元的最大高度

下面是一个工作示例：注意：我必须更改spacing = 3. 这需要根据单个单元格中的行数进行调整。


from fpdf import FPDF


def test_pdf():
    pdf = FPDF()
    pdf.add_page()
    pdf.set_font("Arial", size=8)

    item_data = [['Item Name', 'Last clock', 'lastvalue'], ['cl Loaded Class Count', '0', '0'],
                 ['cl Total Loaded Class Count', '0', '0'], ['cl Unloaded Class Count', '0', '0'],
                 ['comp Name of the current JIT compiler', '0', ''],
                 ['comp Accumulated time spent in compilation', '0', '0'],
                 ['gc ConcurrentMarkSweep number of collections per second', '0', '0'],
                 ['gc ConcurrentMarkSweep accumulated time spent in collection', '0', '0'],
                 ['gc Copy number of collections per second', '0', '0'],
                 ['gc Copy accumulated time spent in collection', '0', '0'],
                 ['gc MarkSweepCompact number of collections per second', '0', '0'],
                 ['gc MarkSweepCompact accumulated time spent in collection', '0', '0'],
                 ['gc PS MarkSweep number of collections per second', '0', '0'],
                 ['gc PS MarkSweep accumulated time spent in collection', '0', '0'],
                 ['gc PS Scavenge number of collections per second', '0', '0'],
                 ['gc PS Scavenge accumulated time spent in collection', '0', '0'],
                 ['gc ParNew number of collections per second', '0', '0'],
                 ['gc ParNew accumulated time spent in collection', '0', '0'], ['mem Heap Memory committed', '0', '0'],
                 ['mem Heap Memory max', '0', '0'], ['mem Heap Memory used', '0', '0'],
                 ['mem Non-Heap Memory committed', '0', '0'], ['mem Non-Heap Memory max', '0', '0'],
                 ['mem Non-Heap Memory used', '0', '0'], ['mem Object Pending Finalization Count', '0', '0'],
                 ['mp CMS Old Gen committed', '0', '0'], ['mp CMS Old Gen max', '0', '0'],
                 ['mp CMS Old Gen used', '0', '0'], ['mp CMS Perm Gen committed', '0', '0'],
                 ['mp CMS Perm Gen max', '0', '0'], ['mp CMS Perm Gen used', '0', '0'],
                 ['mp Code Cache committed', '0', '0'], ['mp Code Cache max', '0', '0'],
                 ['mp Code Cache used', '0', '0'], ['mp PS Old Gen committed', '0', '0'],
                 ['mp PS Old Gen max', '0', '0'], ['mp PS Old Gen used', '0', '0'],
                 ['mp PS Perm Gen committed', '0', '0'], ['mp PS Perm Gen max', '0', '0'],
                 ['mp PS Perm Gen used', '0', '0'], ['mp Perm Gen committed', '0', '0'], ['mp Perm Gen max', '0', '0'],
                 ['mp Perm Gen used', '0', '0'], ['mp Tenured Gen committed', '0', '0'],
                 ['mp Tenured Gen max', '0', '0'], ['mp Tenured Gen used', '0', '0'],
                 ['os Max File Descriptor Count', '0', '0'], ['os Open File Descriptor Count', '0', '0'],
                 ['os Process CPU Load', '0', '0'], ['jvm Uptime', '0', '0'], ['jvm Name', '0', ''],
                 ['jvm Version', '0', ''], ['th Daemon Thread Count', '0', '0'], ['th Peak Thread Count', '0', '0'],
                 ['th Thread Count', '0', '0'], ['th Total Started Thread Count', '0', '0']]

    col_width = pdf.w / 3.25
    spacing = 3
    print(col_width)
    row_height = pdf.font_size
    for row in item_data:
        for item in row:
            pdf.multi_cell(col_width, row_height * spacing, txt=item, border=1, ln=3, max_line_height=pdf.font_size)
        pdf.ln(row_height * spacing)
    pdf.output("stack1.pdf")


if __name__ == '__main__':
    test_pdf()

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我遇到了类似的问题，并在此处的答案中找到了解决方案使用 FPDF 将文本换行在单元格中？

注意：我找不到 FPDF 的 python 特定文档。我通常参考 FPDF 的 PHP 文档： http://www.fpdf.org/en/doc/multicell.htm http://www.fpdf.org/en/tutorial/tuto3.htm

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