fluent_widgets_pyside6/examples/navigation/navigation1/demo.py

# coding:utf-8
import sys
from PySide6.QtCore import Qt, QRect, QUrl
from PySide6.QtGui import QIcon, QPainter, QImage, QBrush, QColor, QFont, QDesktopServices
from PySide6.QtWidgets import QApplication, QFrame, QStackedWidget, QHBoxLayout, QLabel

from qfluentwidgets import (NavigationInterface, NavigationItemPosition, NavigationWidget, MessageBox,
                            isDarkTheme, setTheme, Theme, setThemeColor, qrouter, FluentWindow, NavigationAvatarWidget)
from qfluentwidgets import FluentIcon as FIF
from qframelesswindow import FramelessWindow, StandardTitleBar


class Widget(QFrame):

    def __init__(self, text: str, parent=None):
        super().__init__(parent=parent)
        self.label = QLabel(text, self)
        self.label.setAlignment(Qt.AlignCenter)
        self.hBoxLayout = QHBoxLayout(self)
        self.hBoxLayout.addWidget(self.label, 1, Qt.AlignCenter)
        self.setObjectName(text.replace(' ', '-'))



class Window(FramelessWindow):

    def __init__(self):
        super().__init__()
        self.setTitleBar(StandardTitleBar(self))

        # use dark theme mode
        # setTheme(Theme.DARK)

        # change the theme color
        # setThemeColor('#0078d4')

        self.hBoxLayout = QHBoxLayout(self)
        self.navigationInterface = NavigationInterface(self, showMenuButton=True)
        self.stackWidget = QStackedWidget(self)

        # create sub interface
        self.searchInterface = Widget('Search Interface', self)
        self.musicInterface = Widget('Music Interface', self)
        self.videoInterface = Widget('Video Interface', self)
        self.folderInterface = Widget('Folder Interface', self)
        self.settingInterface = Widget('Setting Interface', self)
        self.albumInterface = Widget('Album Interface', self)
        self.albumInterface1 = Widget('Album Interface 1', self)
        self.albumInterface2 = Widget('Album Interface 2', self)
        self.albumInterface1_1 = Widget('Album Interface 1-1', self)

        # initialize layout
        self.initLayout()

        # add items to navigation interface
        self.initNavigation()

        self.initWindow()

    def initLayout(self):
        self.hBoxLayout.setSpacing(0)
        self.hBoxLayout.setContentsMargins(0, self.titleBar.height(), 0, 0)
        self.hBoxLayout.addWidget(self.navigationInterface)
        self.hBoxLayout.addWidget(self.stackWidget)
        self.hBoxLayout.setStretchFactor(self.stackWidget, 1)

    def initNavigation(self):
        # enable acrylic effect
        # self.navigationInterface.setAcrylicEnabled(True)

        self.addSubInterface(self.searchInterface, FIF.SEARCH, 'Search')
        self.addSubInterface(self.musicInterface, FIF.MUSIC, 'Music library')
        self.addSubInterface(self.videoInterface, FIF.VIDEO, 'Video library')

        self.navigationInterface.addSeparator()

        self.addSubInterface(self.albumInterface, FIF.ALBUM, 'Albums', NavigationItemPosition.SCROLL)
        self.addSubInterface(self.albumInterface1, FIF.ALBUM, 'Album 1', parent=self.albumInterface)
        self.addSubInterface(self.albumInterface1_1, FIF.ALBUM, 'Album 1.1', parent=self.albumInterface1)
        self.addSubInterface(self.albumInterface2, FIF.ALBUM, 'Album 2', parent=self.albumInterface)

        # add navigation items to scroll area
        self.addSubInterface(self.folderInterface, FIF.FOLDER, 'Folder library', NavigationItemPosition.SCROLL)
        # for i in range(1, 21):
        #     self.navigationInterface.addItem(
        #         f'folder{i}',
        #         FIF.FOLDER,
        #         f'Folder {i}',
        #         lambda: print('Folder clicked'),
        #         position=NavigationItemPosition.SCROLL
        #     )

        # add custom widget to bottom
        self.navigationInterface.addWidget(
            routeKey='avatar',
            widget=NavigationAvatarWidget('zhiyiYo', 'resource/shoko.png'),
            onClick=self.showMessageBox,
            position=NavigationItemPosition.BOTTOM,
        )

        self.addSubInterface(self.settingInterface, FIF.SETTING, 'Settings', NavigationItemPosition.BOTTOM)

        #!IMPORTANT: don't forget to set the default route key if you enable the return button
        # qrouter.setDefaultRouteKey(self.stackWidget, self.musicInterface.objectName())

        # set the maximum width
        # self.navigationInterface.setExpandWidth(300)

        self.stackWidget.currentChanged.connect(self.onCurrentInterfaceChanged)
        self.stackWidget.setCurrentIndex(1)

        # always expand
        # self.navigationInterface.setCollapsible(False)

    def initWindow(self):
        self.resize(900, 700)
        self.setWindowIcon(QIcon('resource/logo.png'))
        self.setWindowTitle('PyQt-Fluent-Widgets')
        self.titleBar.setAttribute(Qt.WA_StyledBackground)

        desktop = QApplication.screens()[0].availableGeometry()
        w, h = desktop.width(), desktop.height()
        self.move(w//2 - self.width()//2, h//2 - self.height()//2)

        # NOTE: set the minimum window width that allows the navigation panel to be expanded
        # self.navigationInterface.setMinimumExpandWidth(900)
        # self.navigationInterface.expand(useAni=False)

        self.setQss()

    def addSubInterface(self, interface, icon, text: str, position=NavigationItemPosition.TOP, parent=None):
        """ add sub interface """
        self.stackWidget.addWidget(interface)
        self.navigationInterface.addItem(
            routeKey=interface.objectName(),
            icon=icon,
            text=text,
            onClick=lambda: self.switchTo(interface),
            position=position,
            tooltip=text,
            parentRouteKey=parent.objectName() if parent else None
        )

    def setQss(self):
        color = 'dark' if isDarkTheme() else 'light'
        with open(f'resource/{color}/demo.qss', encoding='utf-8') as f:
            self.setStyleSheet(f.read())

    def switchTo(self, widget):
        self.stackWidget.setCurrentWidget(widget)

    def onCurrentInterfaceChanged(self, index):
        widget = self.stackWidget.widget(index)
        self.navigationInterface.setCurrentItem(widget.objectName())

        #!IMPORTANT: This line of code needs to be uncommented if the return button is enabled
        # qrouter.push(self.stackWidget, widget.objectName())

    def showMessageBox(self):
        w = MessageBox(
            '支持作者🥰',
            '个人开发不易，如果这个项目帮助到了您，可以考虑请作者喝一瓶快乐水🥤。您的支持就是作者开发和维护项目的动力🚀',
            self
        )
        w.yesButton.setText('来啦老弟')
        w.cancelButton.setText('下次一定')

        if w.exec():
            QDesktopServices.openUrl(QUrl("https://afdian.net/a/zhiyiYo"))


if __name__ == '__main__':
    app = QApplication(sys.argv)
    w = Window()
    w.show()
    app.exec()