QTableView header

support
1

How can I make the header visible in tableView?

import sys
import pandas as pd
from PyQt6.QtWidgets import QTableView, QMainWindow, QApplication
from PyQt6.QtCore import Qt, QAbstractTableModel
from datetime import datetime
from PyQt6 import QtCore
import os

class TableModel(QAbstractTableModel):
def init(self, data):
super().init()

    self._data = data

def data(self, index, role):
    if role == Qt.ItemDataRole.DisplayRole:
        value = self._data.iat[index.row(), index.column()]
   
        if isinstance(value, datetime):
            return value.strftime("%Y-%m-%d")
        if isinstance(value, float):
            return "%.6f" % value
        if isinstance(value, str):
            return '"%s"' % value
        
        return value

def rowCount(self, index):
    return len(self._data)

def columnCount(self, index):
    return len(self._data.columns)

class MainWindow(QMainWindow):
def init(self):
super().init()
self.table = QTableView()
#self.table.setFixedWidth(500)
aavsoFile = “/home/rpi5/Downloads/AAVSO.txt”
data = self.getDataframe(aavsoFile)

    self.model = TableModel(data)
    self.table.setModel(self.model)
    self.table.resizeRowsToContents()
    
    self.setCentralWidget(self.table)
    
    self.resize_table_to_contents()
    
def getDataframe(self, aavsoFile):
    
    tmpFile = "tmp.txt"

    with open(aavsoFile, "r") as inputFile:
        with open(tmpFile, "w") as outputFile:
            for line in inputFile:
                if not line.strip("\n").startswith("#"):
                    outputFile.write(line)
                    

    data = pd.read_csv(tmpFile, header=None)
    data.columns = ['DATE','DIFF','ERR','DETREND_1','DETREND_2']
    
    os.remove(tmpFile)
    
    return data


def resize_table_to_contents(self):
    vh = self.table.verticalHeader()
    hh = self.table.horizontalHeader()
    size = QtCore.QSize(hh.length(), vh.length())  # Get the length of the headers along each axis.
    size += QtCore.QSize(vh.size().width(), hh.size().height())  # Add on the lengths from the *other* header
    size += QtCore.QSize(20, 20) 
    self.resize(size)

app = QApplication(sys.argv)
window = MainWindow()
window.show()
app.exec()

2

Hello,

You need to implement headerData in your model.
Something like this:

def headerData(self, section, orientation, role=Qt.DisplayRole):
        if orientation == Qt.Horizontal and role == Qt.DisplayRole:
            return self._headerdata[section]
        return super().headerData(section, orientation, role)
1 Like