The first sample program works fine. The program opens a NumPad when user clicks one of the arrayed QLineEdit cells and when user, using mouse picks number and presses "Enter" the number is placed in the selected QLineEdit cell and NumPad is closed. However, when a calling screen is added in the second program to open screen "ss" the "ss.lVal[(..." and "ss.numpad.close()" lines stop working.
Working Sample Code:
#!/usr/bin/env python
import sys
from pprint import pprint
from PyQt5.QtCore import pyqtSlot
from PyQt5.QtCore import *
from PyQt5.QtWidgets import QApplication
from PyQt5.QtWidgets import QLineEdit
from PyQt5.QtWidgets import QPushButton
from PyQt5.QtWidgets import QVBoxLayout
from PyQt5.QtWidgets import QMainWindow
from PyQt5.QtWidgets import QWidget
from PyQt5.QtWidgets import QGridLayout
from PyQt5.QtWidgets import QMessageBox
from PyQt5.QtCore import pyqtSlot
from PyQt5.QtCore import pyqtSignal
from PyQt5 import QtCore, QtGui, QtWidgets
# Global variables
# Data Select - 3=3 Data Rows,4=4 Data Rows,5=5 DataRows
gvDataSel = 3
gvPickX = 0
gvPickY = 0
class extQLineEdit(QLineEdit):
clicked=pyqtSignal()
def __init__(self,parent):
QLineEdit.__init__(self,parent)
def mousePressEvent(self,QMouseEvent):
self.clicked.emit()
class wdScoreSheet(QWidget):
def __init__(self):
super(wdScoreSheet, self).__init__()
global gvDataSel
self.resize(400, 300)
self.numpad = NumPad(self)
# Value array
self.lVal = {}
for i in range(gvDataSel):
for j in range(2):
k = 0
self.lVal[i,j] = extQLineEdit(self)
self.lVal[i,j].setGeometry(QtCore.QRect(((j*140)+10),((i*34)+50), 50, 28))
self.lVal[i,j].clicked.connect(lambda i=i, j=j: self.show_NumPad(i,j))
def show_NumPad(self, parm1, parm2):
global gvPickX
global gvPickY
gvPickX = parm1
gvPickY = parm2
self.numpad.show()
def close(self):
self.numpad.close()
super(wdScoreSheet, self).close()
class NumPad(QWidget):
def __init__(self, parm1):
super(NumPad, self).__init__()
grid_layout = QGridLayout()
self.setLayout(grid_layout)
values = [
'1', '2', '3',
'4', '5', '6',
'7', '8', '9',
'-', '0', 'Enter'
]
positions = [(i, j) for i in range(1,5) for j in range(3)]
# position is an array of tuples
for position, value in zip(positions, values):
if value == '':
continue
button = QPushButton(value)
grid_layout.addWidget(button, *position)
button.clicked.connect(self.btnclick)
self.setWindowTitle('Num Pad')
verticalLayout = QVBoxLayout()
self.lineEdit = QLineEdit()
verticalLayout.addWidget(self.lineEdit)
grid_layout.addLayout(verticalLayout, 0, 0, 1, 3)
def btnclick(self):
sender = self.sender()
#pprint("You Pressed: " + sender.text())
if sender.text() in ['0','1','2','3','4','5','6','7','8','9']:
self.lineEdit.setText(self.lineEdit.text() + sender.text())
if sender.text() in ['-']:
if self.lineEdit.text()[:1] in ['-']:
self.lineEdit.setText(self.lineEdit.text()[-(len(self.lineEdit.text())-1):])
else:
self.lineEdit.setText(sender.text() + self.lineEdit.text())
if sender.text() in ["Enter"]:
if self.lineEdit.text() not in [""]:
ss.lVal[(gvPickX, gvPickY)].setText(self.lineEdit.text())
self.lineEdit.clear()
ss.numpad.close()
if __name__ == "__main__":
app = QApplication(sys.argv)
ss = wdScoreSheet()
ss.show()
sys.exit(app.exec_())
Same Code with MainWindow added that does not work:
#!/usr/bin/env python
import sys
from pprint import pprint
from PyQt5.QtCore import pyqtSlot
from PyQt5.QtCore import *
from PyQt5.QtWidgets import QApplication
from PyQt5.QtWidgets import QLineEdit
from PyQt5.QtWidgets import QPushButton
from PyQt5.QtWidgets import QVBoxLayout
from PyQt5.QtWidgets import QMainWindow
from PyQt5.QtWidgets import QWidget
from PyQt5.QtWidgets import QGridLayout
from PyQt5.QtWidgets import QMessageBox
from PyQt5.QtCore import pyqtSlot
from PyQt5.QtCore import pyqtSignal
from PyQt5 import QtCore, QtGui, QtWidgets
# Global variables
# Data Select - 3=3 Data Rows,4=4 Data Rows,5=5 DataRows
gvDataSel = 3
gvPickX = 0
gvPickY = 0
class extQLineEdit(QLineEdit):
clicked=pyqtSignal()
def __init__(self,parent):
QLineEdit.__init__(self,parent)
def mousePressEvent(self,QMouseEvent):
self.clicked.emit()
class wdScoreSheet(QWidget):
def __init__(self):
super(wdScoreSheet, self).__init__()
global gvDataSel
self.resize(400, 300)
self.numpad = NumPad(self)
# Value array
self.lVal = {}
for i in range(gvDataSel):
for j in range(2):
k = 0
self.lVal[i,j] = extQLineEdit(self)
self.lVal[i,j].setGeometry(QtCore.QRect(((j*140)+10),((i*34)+50), 50, 28))
self.lVal[i,j].clicked.connect(lambda i=i, j=j: self.show_NumPad(i,j))
def show_NumPad(self, parm1, parm2):
global gvPickX
global gvPickY
gvPickX = parm1
gvPickY = parm2
self.numpad.show()
def close(self):
self.numpad.close()
super(wdScoreSheet, self).close()
class NumPad(QWidget):
def __init__(self, parm1):
super(NumPad, self).__init__()
grid_layout = QGridLayout()
self.setLayout(grid_layout)
values = [
'1', '2', '3',
'4', '5', '6',
'7', '8', '9',
'-', '0', 'Enter'
]
positions = [(i, j) for i in range(1,5) for j in range(3)]
# position is an array of tuples
for position, value in zip(positions, values):
if value == '':
continue
button = QPushButton(value)
grid_layout.addWidget(button, *position)
button.clicked.connect(self.btnclick)
self.setWindowTitle('Num Pad')
verticalLayout = QVBoxLayout()
self.lineEdit = QLineEdit()
verticalLayout.addWidget(self.lineEdit)
grid_layout.addLayout(verticalLayout, 0, 0, 1, 3)
def btnclick(self):
sender = self.sender()
#pprint("You Pressed: " + sender.text())
if sender.text() in ['0','1','2','3','4','5','6','7','8','9']:
self.lineEdit.setText(self.lineEdit.text() + sender.text())
if sender.text() in ['-']:
if self.lineEdit.text()[:1] in ['-']:
self.lineEdit.setText(self.lineEdit.text()[-(len(self.lineEdit.text())-1):])
else:
self.lineEdit.setText(sender.text() + self.lineEdit.text())
if sender.text() in ["Enter"]:
if self.lineEdit.text() not in [""]:
ss.lVal[(gvPickX, gvPickY)].setText(self.lineEdit.text())
self.lineEdit.clear()
ss.numpad.close()
class wdMainWindow(QMainWindow):
def __init__(self):
super(wdMainWindow, self).__init__()
self.resize(400, 300)
self.pbSHR = QPushButton(self)
self.pbSHR.setText("Open Data Screen")
self.pbSHR.setGeometry(QtCore.QRect(20, 20, 200, 30))
self.pbSHR.clicked.connect(self.pbSHR_clicked)
def pbSHR_clicked(self):
global gvDataSel
gvDataSel = 4
ss = wdScoreSheet()
ss.show()
if __name__ == "__main__":
app = QApplication(sys.argv)
mw = wdMainWindow()
mw.show()
sys.exit(app.exec_())
Adding MainWindow to call ss (open instance of wdScoreSheet) makes "ss.lVal[(..." and "ss.numpad.close()" now fail, why? What needs to be changed to make NumPad work like the first program? Thank you in advance for your help.
