Ahojte, s pythonom len zacinam a rad by som sa poradil s nasledovnym. Vytvoril som definiciu ser_send(), ktora je sucastou triedy. Ako by vypadala tato definicia ak by nebola sucastou triedy ? Ak by bol ser_send() mimo triedy, tak neviem ako pouzit comboBox a textBrowser. Taktiez mi vobec nefunguje posielanie stringu na seriovy port.
class Ui_Form(object):
def setupUi(self, Form):
Form.setObjectName(_fromUtf8("Form"))
Form.resize(400, 300)
sizePolicy = QtGui.QSizePolicy(QtGui.QSizePolicy.Fixed, QtGui.QSizePolicy.Fixed)
sizePolicy.setHorizontalStretch(0)
sizePolicy.setVerticalStretch(0)
sizePolicy.setHeightForWidth(Form.sizePolicy().hasHeightForWidth())
Form.setSizePolicy(sizePolicy)
icon = QtGui.QIcon()
icon.addPixmap(QtGui.QPixmap(_fromUtf8("../../Downloads/Twitter-icons-web-design-54.jpg")), QtGui.QIcon.Normal, QtGui.QIcon.Off)
Form.setWindowIcon(icon)
self.label = QtGui.QLabel(Form)
self.label.setGeometry(QtCore.QRect(10, 20, 111, 16))
self.label.setObjectName(_fromUtf8("label"))
self.comboBox = QtGui.QComboBox(Form)
self.comboBox.setGeometry(QtCore.QRect(120, 15, 211, 25))
self.comboBox.setEditable(False)
self.comboBox.setObjectName(_fromUtf8("comboBox"))
self.pushButtonPripoj = QtGui.QPushButton(Form)
self.pushButtonPripoj.setGeometry(QtCore.QRect(140, 230, 87, 27))
self.pushButtonPripoj.setObjectName(_fromUtf8("pushButtonPripoj"))
self.textBrowser = QtGui.QTextBrowser(Form)
self.textBrowser.setGeometry(QtCore.QRect(100, 80, 191, 111))
self.textBrowser.setObjectName(_fromUtf8("textBrowser"))
app.connect(self.pushButtonPripoj, QtCore.SIGNAL("clicked()"),self.ser_send)
self.retranslateUi(Form)
QtCore.QMetaObject.connectSlotsByName(Form)
a = deque(serial_ports())
a.rotate(1)
self.comboBox.addItems(a)
def retranslateUi(self, Form):
Form.setWindowTitle(_translate("Form", "Form", None))
self.label.setText(_translate("Form", "Nastavenie Portu", None))
self.pushButtonPripoj.setText(_translate("Form", "Pripoj", None))
def ser_send(self):
ser = self.comboBox.currentIndex()
try:
srl = serial.Serial(ser)
srl.write("Ahoj")
srl.close()
except:
self.textBrowser.setText("Port je nedostupny")
#self.textBrowser.setText(ser)
def ser_send(ser): try: srl = serial.Serial(ser) srl.write("Ahoj") srl.close() except: print("Port je nedostupny")okay. Myslim si, ze ti rozumiem, ale co ak by tato definicia nebola sucastou triedy a namiesto print bz som pouzil ten testBrowser ? Ako to zapisem ?
def ser_send(ser): try: srl = serial.Serial(ser) srl.write("Ahoj") srl.close() except: ui.textBrowser.setText("Port je nedostupny") # ui je inštancia Ui_FormAhoj, tak to ma nenapadlo. Ja som tam furt daval Ui_Form. Predsa mam este jednu otazku. Dajme tomu, ze namiesto metody ser_send by bol kod nizsie = zatlacim tlacitko a budem prijimat data. Lenze ako zabezpecim aby to prijimanie dat bezalo na pozadi a ja dalej budem moct manipulovat s Widgetami ? Pretoze ak zatlacim tlacitkom, tak comboboxom nepohnem.
def ser_receive(ser) srl = serial.Serial(ser) while True: a = srl.readline() print (a)Takže som našiel niečo o Thread, ale moc tomu nerozumiem. Zatiaľ som použil prerušenie časovača. Použil som toto
QTimer *timer = new QTimer(this); connect(timer, SIGNAL(timeout()), this, SLOT(update())); timer->start(1000);Aby sa GUI neblokovalo musí sa buď použiť buď QThread, alebo QtConcurrent (prípadne aspoň vynútiť spracovanie eventov loopu).