class MainWindow(QMainWindow):
def __init__(self):
super(MainWindow, self).__init__()
self.textEdit = QTextEdit()
self.setCentralWidget(self.textEdit)
self.createActions()
self.createMenus()
self.createToolBars()
self.createStatusBar()
self.createDockWindows()
self.setWindowTitle("Dock Widgets")
self.newLetter()
def newLetter(self):
self.textEdit.clear()
cursor = self.textEdit.textCursor()
cursor.movePosition(QTextCursor.Start)
topFrame = cursor.currentFrame()
topFrameFormat = topFrame.frameFormat()
topFrameFormat.setPadding(16)
topFrame.setFrameFormat(topFrameFormat)
textFormat = QTextCharFormat()
boldFormat = QTextCharFormat()
boldFormat.setFontWeight(QFont.Bold)
italicFormat = QTextCharFormat()
italicFormat.setFontItalic(True)
tableFormat = QTextTableFormat()
tableFormat.setBorder(1)
tableFormat.setCellPadding(16)
tableFormat.setAlignment(Qt.AlignRight)
cursor.insertTable(1, 1, tableFormat)
cursor.insertText("The Firm", boldFormat)
cursor.insertBlock()
cursor.insertText("321 City Street", textFormat)
cursor.insertBlock()
cursor.insertText("Industry Park")
cursor.insertBlock()
cursor.insertText("Some Country")
cursor.setPosition(topFrame.lastPosition())
cursor.insertText(QDate.currentDate().toString("d MMMM yyyy"),
textFormat)
cursor.insertBlock()
cursor.insertBlock()
cursor.insertText("Dear ", textFormat)
cursor.insertText("NAME", italicFormat)
cursor.insertText(",", textFormat)
for i in range(3):
cursor.insertBlock()
cursor.insertText("Yours sincerely,", textFormat)
for i in range(3):
cursor.insertBlock()
cursor.insertText("The Boss", textFormat)
cursor.insertBlock()
cursor.insertText("ADDRESS", italicFormat)
def print_(self):
document = self.textEdit.document()
printer = QPrinter()
dlg = QPrintDialog(printer, self)
if dlg.exec_() != QDialog.Accepted:
return
document.print_(printer)
self.statusBar().showMessage("Ready", 2000)
def save(self):
filename, _ = QFileDialog.getSaveFileName(self, "Choose a file name",
'.', "HTML (*.html *.htm)")
if not filename:
return
file = QFile(filename)
if not file.open(QFile.WriteOnly | QFile.Text):
QMessageBox.warning(
self, "Dock Widgets",
"Cannot write file %s:\n%s." % (filename, file.errorString()))
return
out = QTextStream(file)
QApplication.setOverrideCursor(Qt.WaitCursor)
out << self.textEdit.toHtml()
QApplication.restoreOverrideCursor()
self.statusBar().showMessage("Saved '%s'" % filename, 2000)
def undo(self):
document = self.textEdit.document()
document.undo()
def insertCustomer(self, customer):
if not customer:
return
customerList = customer.split(', ')
document = self.textEdit.document()
cursor = document.find('NAME')
if not cursor.isNull():
cursor.beginEditBlock()
cursor.insertText(customerList[0])
oldcursor = cursor
cursor = document.find('ADDRESS')
if not cursor.isNull():
for i in customerList[1:]:
cursor.insertBlock()
cursor.insertText(i)
cursor.endEditBlock()
else:
oldcursor.endEditBlock()
def addParagraph(self, paragraph):
if not paragraph:
return
document = self.textEdit.document()
cursor = document.find("Yours sincerely,")
if cursor.isNull():
return
cursor.beginEditBlock()
cursor.movePosition(QTextCursor.PreviousBlock, QTextCursor.MoveAnchor,
2)
cursor.insertBlock()
cursor.insertText(paragraph)
cursor.insertBlock()
cursor.endEditBlock()
def about(self):
QMessageBox.about(
self, "About Dock Widgets",
"The <b>Dock Widgets</b> example demonstrates how to use "
"Qt's dock widgets. You can enter your own text, click a "
"customer to add a customer name and address, and click "
"standard paragraphs to add them.")
def createActions(self):
self.newLetterAct = QAction(QIcon.fromTheme('document-new',
QIcon(':/images/new.png')),
"&New Letter",
self,
shortcut=QKeySequence.New,
statusTip="Create a new form letter",
triggered=self.newLetter)
self.saveAct = QAction(QIcon.fromTheme('document-save',
QIcon(':/images/save.png')),
"&Save...",
self,
shortcut=QKeySequence.Save,
statusTip="Save the current form letter",
triggered=self.save)
self.printAct = QAction(QIcon.fromTheme('document-print',
QIcon(':/images/print.png')),
"&Print...",
self,
shortcut=QKeySequence.Print,
statusTip="Print the current form letter",
triggered=self.print_)
self.undoAct = QAction(QIcon.fromTheme('edit-undo',
QIcon(':/images/undo.png')),
"&Undo",
self,
shortcut=QKeySequence.Undo,
statusTip="Undo the last editing action",
triggered=self.undo)
self.quitAct = QAction("&Quit",
self,
shortcut="Ctrl+Q",
statusTip="Quit the application",
triggered=self.close)
self.aboutAct = QAction("&About",
self,
statusTip="Show the application's About box",
triggered=self.about)
self.aboutQtAct = QAction("About &Qt",
self,
statusTip="Show the Qt library's About box",
triggered=QApplication.instance().aboutQt)
def createMenus(self):
self.fileMenu = self.menuBar().addMenu("&File")
self.fileMenu.addAction(self.newLetterAct)
self.fileMenu.addAction(self.saveAct)
self.fileMenu.addAction(self.printAct)
self.fileMenu.addSeparator()
self.fileMenu.addAction(self.quitAct)
self.editMenu = self.menuBar().addMenu("&Edit")
self.editMenu.addAction(self.undoAct)
self.viewMenu = self.menuBar().addMenu("&View")
self.menuBar().addSeparator()
self.helpMenu = self.menuBar().addMenu("&Help")
self.helpMenu.addAction(self.aboutAct)
self.helpMenu.addAction(self.aboutQtAct)
def createToolBars(self):
self.fileToolBar = self.addToolBar("File")
self.fileToolBar.addAction(self.newLetterAct)
self.fileToolBar.addAction(self.saveAct)
self.fileToolBar.addAction(self.printAct)
self.editToolBar = self.addToolBar("Edit")
self.editToolBar.addAction(self.undoAct)
def createStatusBar(self):
self.statusBar().showMessage("Ready")
def createDockWindows(self):
dock = QDockWidget("Customers", self)
dock.setAllowedAreas(Qt.LeftDockWidgetArea | Qt.RightDockWidgetArea)
self.customerList = QListWidget(dock)
self.customerList.addItems(
("John Doe, Harmony Enterprises, 12 Lakeside, Ambleton",
"Jane Doe, Memorabilia, 23 Watersedge, Beaton",
"Tammy Shea, Tiblanka, 38 Sea Views, Carlton",
"Tim Sheen, Caraba Gifts, 48 Ocean Way, Deal",
"Sol Harvey, Chicos Coffee, 53 New Springs, Eccleston",
"Sally Hobart, Tiroli Tea, 67 Long River, Fedula"))
dock.setWidget(self.customerList)
self.addDockWidget(Qt.RightDockWidgetArea, dock)
self.viewMenu.addAction(dock.toggleViewAction())
dock = QDockWidget("Paragraphs", self)
self.paragraphsList = QListWidget(dock)
self.paragraphsList.addItems(
("Thank you for your payment which we have received today.",
"Your order has been dispatched and should be with you within "
"28 days.",
"We have dispatched those items that were in stock. The rest of "
"your order will be dispatched once all the remaining items "
"have arrived at our warehouse. No additional shipping "
"charges will be made.",
"You made a small overpayment (less than $5) which we will keep "
"on account for you, or return at your request.",
"You made a small underpayment (less than $1), but we have sent "
"your order anyway. We'll add this underpayment to your next "
"bill.",
"Unfortunately you did not send enough money. Please remit an "
"additional $. Your order will be dispatched as soon as the "
"complete amount has been received.",
"You made an overpayment (more than $5). Do you wish to buy more "
"items, or should we return the excess to you?"))
dock.setWidget(self.paragraphsList)
self.addDockWidget(Qt.RightDockWidgetArea, dock)
self.viewMenu.addAction(dock.toggleViewAction())
self.customerList.currentTextChanged.connect(self.insertCustomer)
self.paragraphsList.currentTextChanged.connect(self.addParagraph)
class MainWindow(QMainWindow):
def __init__(self, window_width=None, window_height=None):
super(MainWindow, self).__init__()
if window_width != None and window_height != None:
self.window_width = window_width
self.window_height = window_height
self.resize(window_width, window_height)
self.stack_of_widget = QStackedWidget()
self.central_widget = QWidget()
self.main_layout = QVBoxLayout()
self.username = ""
# ui widgets
self.message_visable_field = QTextEdit()
self.message_input_field = QTextEdit()
self.send_message = QPushButton("Send my message!")
self.login_screen = LoginScreen()
self.login_screen.auth_button.clicked.connect(self.login_button_click)
# show all widgets
self.build_ui()
def build_ui(self):
self.message_visable_field.setFont(QFont("Roboto", 12))
self.message_visable_field.setReadOnly(True)
self.message_input_field.setFont(QFont("Roboto", 11))
self.message_input_field.setPlaceholderText(
"Input your message here...")
self.message_input_field.setMinimumHeight(50)
self.message_input_field.setMaximumHeight(50)
self.send_message.setFont(QFont("Roboto", 11))
self.send_message.clicked.connect(self.send_message_button_clicked)
self.main_layout.addWidget(self.message_visable_field)
self.main_layout.addWidget(self.message_input_field)
self.main_layout.addWidget(self.send_message)
self.central_widget.setLayout(self.main_layout)
self.stack_of_widget.addWidget(self.login_screen)
self.setMaximumSize(self.minimumSize())
self.stack_of_widget.addWidget(self.central_widget)
self.setCentralWidget(self.stack_of_widget)
def send_message_button_clicked(self):
"""
send a client message to the server, and append to the list message.
"""
message = self.message_input_field.toPlainText()
if message != '':
# send message to the server
r_type = RequestInfo(type_request="MessageRequest",
request_ts=f"{datetime.now()}")
r_data = MessageRequest(from_=self.username,
to="all",
message=message)
request = Request(request=[r_type], data=[r_data])
client_worker.send(request.json())
self.message_visable_field.append('You: ' + message)
self.message_input_field.clear()
def login_button_click(self):
self.username = self.login_screen.login_field.text()
r_type = RequestInfo(type_request="AuthRequest",
request_ts=f"{datetime.now()}")
r_data = AuthRequest(
login=f"{self.username}",
password=f"{self.login_screen.password_field.text()}")
request = Request(request=[r_type], data=[r_data])
client_worker.send(request.json())
@Slot(str)
def recieved_message_handler(self, message):
msg = json.loads(message)
print(msg)
response = Request(**msg)
if response.request[0].type_request == "AuthResponse":
data = AuthResponse(**response.data[0])
if data.access is True:
self.show_main_screen()
elif response.request[0].type_request == "MessageRequest":
data = MessageRequest(**response.data[0])
if data.to == "all":
self.message_visable_field.append(
f"[{data.from_}]: {data.message}")
def show_main_screen(self):
self.stack_of_widget.setCurrentWidget(self.central_widget)
self.setMinimumSize(self.window_width, self.window_height)
self.resize(self.minimumSize())
def closeEvent(self, event):
client_worker.close()
network_thread.exit()
network_thread.wait(500)
if network_thread.isRunning() is True:
network_thread.terminate()