I would like to change behavior of Key_C keypressevent or create custom keypressevent handler only for QTableWidget, also cause all form created in QtDesigner I want to implement this via code in tablemain.py. In addition, I found that according to this answer I need to promote my QTableWidget in QtDesigner, but I don't know how to perform this action correctly. So, one more time main goal is to:
- Handle Key_C keyPressEvent only for QTableWidget which was imported from QtDesigner form, and only when we focused on it copy selected cells into clipboard. table.ui, table.py, tablemain.py all files PSB:
table.ui
<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>MainWindow</class>
<widget class="QMainWindow" name="MainWindow">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>749</width>
<height>519</height>
</rect>
</property>
<property name="windowTitle">
<string>MainWindow</string>
</property>
<widget class="QWidget" name="centralwidget">
<widget class="QTableWidget" name="tableWidget">
<property name="geometry">
<rect>
<x>20</x>
<y>10</y>
<width>611</width>
<height>371</height>
</rect>
</property>
<property name="alternatingRowColors">
<bool>true</bool>
</property>
<property name="gridStyle">
<enum>Qt::DotLine</enum>
</property>
<row>
<property name="text">
<string>1</string>
</property>
</row>
<column>
<property name="text">
<string>1st column</string>
</property>
</column>
<column>
<property name="text">
<string>2nd column</string>
</property>
</column>
<column>
<property name="text">
<string>3rd column</string>
</property>
</column>
</widget>
</widget>
<widget class="QMenuBar" name="menubar">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>749</width>
<height>19</height>
</rect>
</property>
</widget>
<widget class="QStatusBar" name="statusbar"/>
</widget>
<resources/>
<connections/>
</ui>
table.py
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'table.ui'
#
# Created by: PyQt5 UI code generator 5.9
#
# WARNING! All changes made in this file will be lost!
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(749, 519)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.tableWidget = QtWidgets.QTableWidget(self.centralwidget)
self.tableWidget.setGeometry(QtCore.QRect(20, 10, 611, 371))
self.tableWidget.setAlternatingRowColors(True)
self.tableWidget.setGridStyle(QtCore.Qt.DotLine)
self.tableWidget.setObjectName("tableWidget")
self.tableWidget.setColumnCount(3)
self.tableWidget.setRowCount(1)
item = QtWidgets.QTableWidgetItem()
self.tableWidget.setVerticalHeaderItem(0, item)
item = QtWidgets.QTableWidgetItem()
self.tableWidget.setHorizontalHeaderItem(0, item)
item = QtWidgets.QTableWidgetItem()
self.tableWidget.setHorizontalHeaderItem(1, item)
item = QtWidgets.QTableWidgetItem()
self.tableWidget.setHorizontalHeaderItem(2, item)
MainWindow.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(MainWindow)
self.menubar.setGeometry(QtCore.QRect(0, 0, 749, 19))
self.menubar.setObjectName("menubar")
MainWindow.setMenuBar(self.menubar)
self.statusbar = QtWidgets.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
item = self.tableWidget.verticalHeaderItem(0)
item.setText(_translate("MainWindow", "1"))
item = self.tableWidget.horizontalHeaderItem(0)
item.setText(_translate("MainWindow", "1st column"))
item = self.tableWidget.horizontalHeaderItem(1)
item.setText(_translate("MainWindow", "2nd column"))
item = self.tableWidget.horizontalHeaderItem(2)
item.setText(_translate("MainWindow", "3rd column"))
tablemain.py
import sys
import os
import io
import time
from table import *
from PyQt5 import QtCore, QtGui, QtWidgets
class MyWin(QtWidgets.QMainWindow):
def __init__(self, parent=None):
QtWidgets.QWidget.__init__(self, parent)
self.ui = Ui_MainWindow()
self.ui.setupUi(self)
self.clipboard = QtWidgets.QApplication.clipboard
self.ui.tableWidget.keyPressEvent = self.tableWidgetSentKeyPressEvent
def tableWidgetSentKeyPressEvent(self, event):
if event.key() == QtCore.Qt.Key_C:
self.copy()
return QtWidgets.QTableWidget.keyPressEvent(self.ui.tableWidget, event)
# def keyPressEvent(self, e):
# """
# Captures keypresses to handle copy, cut, and paste.
# Arguments:
# e -- a QKeyEvent.
# """
# if e.key() == QtCore.Qt.Key_Delete:
# self._clear()
# e.ignore()
# elif e.modifiers() == QtCore.Qt.ControlModifier and e.key() == \
# QtCore.Qt.Key_X:
# self.cut()
# e.ignore()
# elif e.modifiers() == QtCore.Qt.ControlModifier and e.key() == \
# QtCore.Qt.Key_C:
# self.copy()
# e.ignore()
# elif e.modifiers() == QtCore.Qt.ControlModifier and e.key() == \
# QtCore.Qt.Key_V:
# self.paste()
# e.ignore()
# else:
# QtWidgets.QTableWidget.keyPressEvent(self, e)
def copy(self):
"""Copies data from the table into the clipboard."""
_range = self.ui.tableWidget.selectedRanges()[0]
rows = []
for row in range(_range.topRow(), _range.bottomRow()+1):
columns = []
for column in range(_range.leftColumn(), _range.rightColumn()+1):
item = self.ui.tableWidget.item(row, column)
if item != None:
value = str(item.text())
else:
value = u''
columns.append(value)
rows.append(u'\t'.join(columns))
selection = u'\n'.join(rows)
self.clipboard().setText(selection)
if __name__ == "__main__":
app = QtWidgets.QApplication(sys.argv)
myapp = MyWin()
myapp.show()
sys.exit(app.exec_())
