Python Big Job - Crawler + Visualization + Data Analysis + Database (Visualization)

Keywords: Python crawler GUI

Python Big Job - Crawler + Visualization + Data Analysis + Database (Visualization)

I. Login Interface

Since the program will interact with the database to achieve song collection and other functions, you need to first design an interface for login registration.

The login interface will be the same size as the main interface and set to a fixed size for easy layout.

self.setFixedSize(960, 700)
self.setWindowTitle('Sign in')  # Set window name
self.setWindowIcon(QIcon('favicon.ico'))  # Set the window icon in the upper left corner

Next, set the window background with a palette control

palette = QPalette()
palette.setBrush(QPalette.Background, QBrush(QPixmap('1.jpg')))

Next set up the interface controls

self.frame = QFrame(self)
self.frame.move(260, 110)  # coordinate
self.mainLayout = QVBoxLayout(self.frame)

For simplicity and convenience, only two input boxes for account password and two buttons for login registration are set up, as follows:

self.nameEd1 = QLineEdit(self)  # Create Input Box
self.nameEd1.setPlaceholderText("Admin")  # Set default text
self.nameEd1.setFont(QFont('Microsoft YaHei', 22))  # Set font and size
# Set Transparency
op2 = QGraphicsOpacityEffect()
# Set Control Style
self.nameEd1.setStyleSheet('''QLineEdit{border-radius:5px; padding: 8px}''')

Similar to the password input box, just set its edit mode to Small Dot Fill


The login and registration button settings are exactly the same

self.btnLG = QPushButton('Login')  # Button Value Setting Login
# Set Transparency
op3 = QGraphicsOpacityEffect()
# Set Control Style
QPushButton{font-family:'Arial';color:#FFFFFF; padding:6px}''')  # Hover is mouse hover style

Next, add the parts to the layout and set adjacent distances for them


Finally, bind the mouse click event for them to complete the logon interface design.


The general results are as follows:

2. Main Interface

First, UI design to facilitate the interface layout settings, the interface design is roughly as follows

You can then program the GUI

Also first set the window size, name, icon, and partially set the window

self.setFixedSize(960, 700)
self.setWindowOpacity(0.9)  # Set window transparency
self.setAttribute(QtCore.Qt.WA_TranslucentBackground)  # Set window background transparency
# self.setWindowFlags(QtCore.Qt.FramelessWindowHint) # hidden

Then we create the widgets and set the layout. First we can divide the interface into left and right parts and set the Name label for them. Then we add the left and right parts to the main part and set the position and size for them.

self.main_widget = QtWidgets.QWidget()  # Create the main widget of the window
self.main_layout = QtWidgets.QGridLayout()  # Create grid layout for main parts
self.main_widget.setLayout(self.main_layout)  # Set the widget layout to grid

self.left_widget = QtWidgets.QWidget()  # Create left part
self.left_layout = QtWidgets.QGridLayout()  # Create a grid layout layer for the left part
self.left_widget.setLayout(self.left_layout)  # Set left part layout to grid

self.right_widget = QtWidgets.QWidget()  # Create Right Widget
self.right_layout = QtWidgets.QGridLayout()
self.right_widget.setLayout(self.right_layout)  # Set right part layout to grid

self.setCentralWidget(self.main_widget)  # Set up the main widget of the window
self.main_layout.addWidget(self.left_widget, 0, 0, 12, 2)  # Left Widget in Row 0 Column, 8 Rows 3 Columns
self.main_layout.addWidget(self.right_widget, 0, 2, 12, 10)  # Right Widget in Row 0, Column 3, Row 8, Column 9

Looking at the left part, we can see that there are mainly three labels and nine buttons

Create three tags and set Name tags for them, then create nine buttons, set Name tags as well, and add these tags and buttons to the left layout

self.left_label_1 = QtWidgets.QPushButton("Daily Recommendation")
self.left_label_2 = QtWidgets.QPushButton("My Music")
self.left_label_3 = QtWidgets.QPushButton("Contact and Help")

self.left_button_1 = QtWidgets.QPushButton(qtawesome.icon('', color='white'), "Top Songs")
self.left_button_2 = QtWidgets.QPushButton(qtawesome.icon('fa.sellsy', color='white'), "Top singers")
self.left_button_3 = QtWidgets.QPushButton(qtawesome.icon('', color='white'), "Popular MV")
self.left_button_4 = QtWidgets.QPushButton(qtawesome.icon('fa.home', color='white'), "My Downloads")
self.left_button_5 = QtWidgets.QPushButton(qtawesome.icon('', color='white'), "My Collection")
self.left_button_6 = QtWidgets.QPushButton(qtawesome.icon('fa.heart', color='white'), "Switch Accounts")
self.left_button_7 = QtWidgets.QPushButton(qtawesome.icon('fa.comment', color='white'), "Development process")
self.left_button_8 = QtWidgets.QPushButton(qtawesome.icon('', color='white'), "Author Blog")
self.left_button_9 = QtWidgets.QPushButton(qtawesome.icon('fa.question', color='white'), "Contact Author")

self.left_layout.addWidget(self.left_label_1, 1, 0, 1, 3)
self.left_layout.addWidget(self.left_button_1, 2, 0, 1, 3)
self.left_layout.addWidget(self.left_button_2, 3, 0, 1, 3)
self.left_layout.addWidget(self.left_button_3, 4, 0, 1, 3)
self.left_layout.addWidget(self.left_label_2, 5, 0, 1, 3)
self.left_layout.addWidget(self.left_button_4, 6, 0, 1, 3)
self.left_layout.addWidget(self.left_button_5, 7, 0, 1, 3)
self.left_layout.addWidget(self.left_button_6, 8, 0, 1, 3)
self.left_layout.addWidget(self.left_label_3, 9, 0, 1, 3)
self.left_layout.addWidget(self.left_button_7, 10, 0, 1, 3)
self.left_layout.addWidget(self.left_button_8, 11, 0, 1, 3)
self.left_layout.addWidget(self.left_button_9, 12, 0, 1, 3)

After setting the left, let's look at the layout on the right

At the top is the search box, which is actually an input control

Let's first create a part for that location and set it to a grid layout

The input control and icon are then created and added to the search box layout

Finally, add the search box part to the right layout

self.right_bar_widget = QtWidgets.QWidget()  # Right Top Search Box Part
self.right_bar_layout = QtWidgets.QGridLayout()  # Top right search box grid layout

self.search_icon = QtWidgets.QLabel(chr(0xf002) + ' ' + 'search  ')
self.search_icon.setFont(qtawesome.font('fa', 20))
self.right_bar_widget_search_input = QtWidgets.QLineEdit()
self.right_bar_widget_search_input.setPlaceholderText("Enter a singer, song or user and return to search")

self.right_bar_layout.addWidget(self.search_icon, 0, 0, 1, 1)
self.right_bar_layout.addWidget(self.right_bar_widget_search_input, 0, 1, 1, 8)
self.right_layout.addWidget(self.right_bar_widget, 0, 0, 1, 9)

Next, on the left is a display of search results and on the right is the action options

Search results and action options are buttons because they can be clicked and played

So let's start by creating two labels, Search Results and Execute Action

Then create ten left buttons (search results) and six right buttons (perform actions)

You can do this by adding them to the layout

Search result buttons are created roughly as follows, and button text can be set by passing in a parameter string

self.search_result_button_1 = QtWidgets.QPushButton()

Execute the action button to create roughly the following

self.operator_button_1 = QtWidgets.QToolButton()
self.operator_button_1.setText("Export of all songs url address")
self.operator_button_1.setIcon(qtawesome.icon('', color='red'))  # Set button icon
self.operator_button_1.setIconSize(QtCore.QSize(50, 50))  # Set Button Size
self.operator_button_1.setToolButtonStyle(QtCore.Qt.ToolButtonTextUnderIcon)  # Set up buttons and text display

Finally, the bottom progress bar and the previous, next and play buttons

self.right_process_bar = QtWidgets.QProgressBar()  # Play Progress Widget
self.process_value = 0  # Set play value (0 is not yet played)
self.right_process_bar.setValue(self.process_value)  # Set the position of the progress bar
self.right_process_bar.setFixedHeight(3)  # Set Progress Bar Height
self.right_process_bar.setTextVisible(False)  # Do not display progress bar text

self.console_button_1 = QtWidgets.QPushButton(qtawesome.icon('fa.backward', color='#F76677'), "")
self.console_button_2 = QtWidgets.QPushButton(qtawesome.icon('fa.forward', color='#F76677'), "")
self.console_button_3 = QtWidgets.QPushButton(qtawesome.icon('', color='#F76677', font=18), "")
self.console_button_3.setIconSize(QtCore.QSize(30, 30))

Then add them to the layout as well

Next, set the spacing between the controls and style them with the Name tag, such as


        border-bottom:1px solid white;\
        font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;\
    QPushButton#left_button:hover{border-left:4px solid red;font-weight:700;}\
        border-top:1px solid white;\
        border-bottom:1px solid white;\
        border-left:1px solid white;\

Finally, bind the mouse events for them and you're done!

self.search_result_button_1.clicked.connect(lambda: self.play_music(0))
self.search_result_button_2.clicked.connect(lambda: self.play_music(1))
self.search_result_button_3.clicked.connect(lambda: self.play_music(2))
self.search_result_button_4.clicked.connect(lambda: self.play_music(3))
self.search_result_button_5.clicked.connect(lambda: self.play_music(4))
self.search_result_button_6.clicked.connect(lambda: self.play_music(5))
self.search_result_button_7.clicked.connect(lambda: self.play_music(6))
self.search_result_button_8.clicked.connect(lambda: self.play_music(7))
self.search_result_button_9.clicked.connect(lambda: self.play_music(8))
self.search_result_button_10.clicked.connect(lambda: self.play_music(9))
self.console_button_3.clicked.connect(lambda: self.play_music_by_button())

Posted by subcool on Mon, 06 Dec 2021 09:07:24 -0800