How to convert QTableWidget data to PDF using PyQt5 Python

问题

I am working on a python project where I have data stored in QTableWidget. I have to export this data into excel sheet and PDF. I have been able to export data to excel sheet using below code. But unable to understand how can I convert it to PDF.

filename, _ = QFileDialog.getSaveFileName(self, 'Save File', '', ".xls(*.xls)")
wbk = xlwt.Workbook()
sheet = wbk.add_sheet("sheet", cell_overwrite_ok=True)
style = xlwt.XFStyle()
font = xlwt.Font()
font.bold = True
style.font = font
model = self.home_ui.reports_table.model()

for c in range(model.columnCount()):
    text = model.headerData(c, QtCore.Qt.Horizontal)
    first_col = sheet.col(c+1)
    l = len(text)
    first_col.width = (256 * l) + 1000
    sheet.write(0, c + 1, text, style=style)

for r in range(model.rowCount()):
    text = model.headerData(r, QtCore.Qt.Vertical)
    sheet.write(r + 1, 0, text, style=style)

for c in range(model.columnCount()):
    for r in range(model.rowCount()):
        text = model.data(model.index(r, c))
        sheet.write(r + 1, c + 1, text)

wbk.save(filename)

Above code is working fine and saving data to excel.

I have looked into other questions with same topic but all of them are in c++. I am looking for python equivalent.

Can anyone give me some good suggestion on how to convert data to PDF. Please help. Thanks

回答1:

When you review an answer you should not only see the code but the solution itself, that is, the logic that is in the background. In this particular case the solution is to create an HTML that shows the table content, and use QTextDocument with QPrinter to print the HTML to PDF.

Considering the above, it is not necessary to do the translation since it is enough to implement it from scratch since the logic is clear.

from PyQt5 import QtCore, QtGui, QtWidgets, QtPrintSupport

app = QtWidgets.QApplication([])

w = QtWidgets.QTableWidget(10, 10)
for i in range(10):
    for j in range(10):
        it = QtWidgets.QTableWidgetItem("{}-{}".format(i, j))
        w.setItem(i, j, it)


filename = "table.pdf"
model = w.model()

printer = QtPrintSupport.QPrinter(QtPrintSupport.QPrinter.PrinterResolution)
printer.setOutputFormat(QtPrintSupport.QPrinter.PdfFormat)
printer.setPaperSize(QtPrintSupport.QPrinter.A4)
printer.setOrientation(QtPrintSupport.QPrinter.Landscape)
printer.setOutputFileName(filename)

doc = QtGui.QTextDocument()

html = """<html>
<head>
<style>
table, th, td {
  border: 1px solid black;
  border-collapse: collapse;
}
</style>
</head>"""
html += "<table><thead>"
html += "<tr>"
for c in range(model.columnCount()):
    html += "<th>{}</th>".format(model.headerData(c, QtCore.Qt.Horizontal))

html += "</tr></thead>"
html += "<tbody>"
for r in range(model.rowCount()):
    html += "<tr>"
    for c in range(model.columnCount()):
        html += "<td>{}</td>".format(model.index(r, c).data() or "")
    html += "</tr>"
html += "</tbody></table>"
doc.setHtml(html)
doc.setPageSize(QtCore.QSizeF(printer.pageRect().size()))
doc.print_(printer)

来源：https://stackoverflow.com/questions/64112826/how-to-convert-qtablewidget-data-to-pdf-using-pyqt5-python

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python

pdf

pyqt5

qtablewidget