def widget_init(self):
# combobox without scrolling
class myComboBox(QComboBox):
def wheelEvent(self, *args, **kwargs): pass
# holding table refresh
if self.tableWidget.rowCount() != len(self.srv.devices[0].holdings):
# print device information
print("holdings count=", len(self.srv.devices[0].holdings))
print("inputs count=", len(self.srv.devices[0].inputs))
# reading data from prm.json file
with open('PRM.json', 'r', encoding='Windows-1251') as fh: # открываем файл на чтение
self.jsdtr = json.load(fh) # загружаем из файла данные в словарь data
# set table row value
self.tableWidget.setRowCount(len(self.srv.devices[0].holdings))
for x, el in enumerate(self.srv.devices[0].holdings):
if x < len(self.jsdtr):
# writing parameter name from prm.json data to column 0, 2
item = QTableWidgetItem(self.jsdtr[x][0])
# disabling column 0 item changing
item.setFlags(QtCore.Qt.ItemIsEnabled)
self.tableWidget.setItem(x, 0, item)
# additional combobox and button control at column 2 and 3
if len(self.jsdtr[x]) > 1:
tbtn = QPushButton()
tbtn.setMaximumSize(100, 75)
tbtn.setText("Задать")
self.tableWidget.setCellWidget(x, 3, tbtn)
#combox
cmb = myComboBox()
self.tableWidget.setCellWidget(x, 2, cmb)
for item in self.jsdtr[x][1]:
# adding item at combobox
self.tableWidget.cellWidget(x, 2).addItem(item[0])
# Switch combobox to current value
if self.srv.devices[0].holdings[x] < self.tableWidget.cellWidget(x, 2).count():
self.tableWidget.cellWidget(x, 2).setCurrentIndex(self.srv.devices[0].holdings[x])
else:
self.tableWidget.cellWidget(x, 2).setCurrentIndex(-1)
#self.tableWidget.cellWidget(x, 2).setFixedWidth(150)
# connecting event to combobox
# self.tableWidget.cellWidget(x, 2).currentIndexChanged.connect(item_indCng)
# connecting event to button
# Combobox index changing event
def signal_btnpressed():
try:
# combobox current index
tmp = self.tableWidget.cellWidget(self.tableWidget.currentRow(), 2).currentIndex()
if tmp == -1: return False
# holding cell value
tmp2 = int(self.tableWidget.cellWidget(self.tableWidget.currentRow(), 1).text())
if tmp != tmp2:
# marking cell
self.marking_cell(self.tableWidget.currentRow())
# request for server to write value
if len(self.jsdtr[self.tableWidget.currentRow()]) > 1:
if len(self.jsdtr[self.tableWidget.currentRow()][1][tmp]) == 2:
# get cell value from json structure
tmp = self.jsdtr[self.tableWidget.currentRow()][1][tmp][1]
req = "write 0 " + str(self.tableWidget.currentRow()) + " " + str(tmp)
self.cmd_list.append(req)
# cell value changing
self.tableWidget.cellWidget(self.tableWidget.currentRow(), 1).setText(str(tmp))
return True
except AttributeError:
return False
self.tableWidget.cellWidget(x, 3).clicked.connect(signal_btnpressed)
self.tableWidget.cellWidget(x, 3).setSizePolicy(QSizePolicy.MinimumExpanding, QSizePolicy.MinimumExpanding)
# if no additional combobox
else:
# disabling cell changing at column 2
item = QTableWidgetItem("")
item.setFlags(QtCore.Qt.ItemIsEnabled)
self.tableWidget.setItem(x, 2, item)
# if no data at prm.json
else:
# disabling cell changing at column 0,2
item = QTableWidgetItem("")
item.setFlags(QtCore.Qt.ItemIsEnabled)
# self.tableWidget.setItem(x, 2, item)
self.tableWidget.setItem(x, 0, item)
# Set cell value at column 1
item = QLineEdit(str(self.srv.devices[0].holdings[x]))
item.setSizePolicy(QSizePolicy.MinimumExpanding, QSizePolicy.MinimumExpanding)
item.setMaxLength(6)
item.setMaximumSize(100, 100)
# Only int numbers
item.setValidator(QIntValidator(-65536, 65536))
# Cell value changing event
def signal_cellpressed():
try:
# cell current value
tmp = int(self.tableWidget.cellWidget(self.tableWidget.currentRow(), 1).text())
# check for combobox item count
if self.tableWidget.cellWidget(self.tableWidget.currentRow(), 2) is not None:
if tmp > self.tableWidget.cellWidget(self.tableWidget.currentRow(), 2).count(): tmp = -1
# changing combobox index
self.tableWidget.cellWidget(self.tableWidget.currentRow(), 2).setCurrentIndex(tmp)
except (ValueError, AttributeError) as e:
print(e)
# marking cell
self.marking_cell(self.tableWidget.currentRow())
# request for holding register changing
req = "write 0 " + str(self.tableWidget.currentRow()) + " " + \
self.tableWidget.cellWidget(self.tableWidget.currentRow(), 1).text()
self.cmd_list.append(req)
def signal_cellchanged():
try:
self.tableWidget.cellWidget(self.tableWidget.currentRow(), 1).setStyleSheet(
"QLineEdit {background-color: Pink; font: 14pt;}"
)
except AttributeError: pass
# connecting event to QLineEdit
item.returnPressed.connect(signal_cellpressed)
item.textChanged.connect(signal_cellchanged)
self.tableWidget.setCellWidget(x, 1, item)
# self.tableWidget.setColumnWidth(1,50)
self.tableWidget.horizontalHeader().setSectionResizeMode(0, QHeaderView.ResizeToContents)
self.tableWidget.horizontalHeader().setSectionResizeMode(1, QHeaderView.ResizeToContents)
self.tableWidget.horizontalHeader().setSectionResizeMode(2, QHeaderView.ResizeToContents)
self.tableWidget.horizontalHeader().setSectionResizeMode(3, QHeaderView.ResizeToContents)
