initial fluent-widgets ui

examples/navigation/navigation3/demo.py

@@ -0,0 +1,190 @@
+# coding:utf-8
+import sys
+from PySide6.QtCore import Qt, QEvent
+from PySide6.QtGui import QIcon
+from PySide6.QtWidgets import QApplication, QStackedWidget, QHBoxLayout, QLabel, QWidget, QVBoxLayout
+
+from qfluentwidgets import (NavigationInterface, NavigationItemPosition, NavigationWidget, MessageBox,
+                            isDarkTheme, setTheme, Theme, setThemeColor, NavigationToolButton, NavigationPanel)
+from qfluentwidgets import FluentIcon as FIF
+from qframelesswindow import FramelessWindow, StandardTitleBar
+
+
+class Widget(QWidget):
+
+    def __init__(self, text: str, parent=None):
+        super().__init__(parent=parent)
+        self.label = QLabel(text, self)
+        self.hBoxLayout = QHBoxLayout(self)
+
+        self.label.setAlignment(Qt.AlignCenter)
+        self.hBoxLayout.addWidget(self.label, 1, Qt.AlignCenter)
+
+        self.setObjectName(text.replace(' ', '-'))
+
+
+class NavigationBar(QWidget):
+    """ Navigation widget """
+
+    def __init__(self, parent=None):
+        super().__init__(parent=parent)
+        self.hBoxLayout = QHBoxLayout(self)
+        self.menuButton = NavigationToolButton(FIF.MENU, self)
+        self.navigationPanel = NavigationPanel(parent, True)
+        self.titleLabel = QLabel(self)
+
+        self.navigationPanel.move(0, 31)
+        self.hBoxLayout.setContentsMargins(5, 5, 5, 5)
+        self.hBoxLayout.addWidget(self.menuButton)
+        self.hBoxLayout.addWidget(self.titleLabel)
+
+        self.menuButton.clicked.connect(self.showNavigationPanel)
+        self.navigationPanel.setExpandWidth(260)
+        self.navigationPanel.setMenuButtonVisible(True)
+        self.navigationPanel.hide()
+
+        # enable acrylic effect
+        self.navigationPanel.setAcrylicEnabled(True)
+
+        self.window().installEventFilter(self)
+
+    def setTitle(self, title: str):
+        self.titleLabel.setText(title)
+        self.titleLabel.adjustSize()
+
+    def showNavigationPanel(self):
+        self.navigationPanel.show()
+        self.navigationPanel.raise_()
+        self.navigationPanel.expand()
+
+    def addItem(self, routeKey, icon, text: str, onClick, selectable=True, position= NavigationItemPosition.TOP):
+        def wrapper():
+            onClick()
+            self.setTitle(text)
+
+        self.navigationPanel.addItem(
+            routeKey, icon, text, wrapper, selectable, position)
+
+    def addSeparator(self, position=NavigationItemPosition.TOP):
+        self.navigationPanel.addSeparator(position)
+
+    def setCurrentItem(self, routeKey: str):
+        self.navigationPanel.setCurrentItem(routeKey)
+        self.setTitle(self.navigationPanel.widget(routeKey).text())
+
+    def eventFilter(self, obj, e: QEvent):
+        if obj is self.window():
+            if e.type() == QEvent.Resize:
+                self.navigationPanel.setFixedHeight(e.size().height() - 31)
+
+        return super().eventFilter(obj, e)
+
+
+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.vBoxLayout = QVBoxLayout(self)
+        self.navigationInterface = NavigationBar(self)
+        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.stackWidget.addWidget(self.searchInterface)
+        self.stackWidget.addWidget(self.musicInterface)
+        self.stackWidget.addWidget(self.videoInterface)
+        self.stackWidget.addWidget(self.folderInterface)
+        self.stackWidget.addWidget(self.settingInterface)
+
+        # initialize layout
+        self.initLayout()
+
+        # add items to navigation interface
+        self.initNavigation()
+
+        self.initWindow()
+
+    def initLayout(self):
+        self.vBoxLayout.setSpacing(0)
+        self.vBoxLayout.setContentsMargins(0, self.titleBar.height(), 0, 0)
+        self.vBoxLayout.addWidget(self.navigationInterface)
+        self.vBoxLayout.addWidget(self.stackWidget)
+        self.vBoxLayout.setStretchFactor(self.stackWidget, 1)
+
+    def initNavigation(self):
+        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()
+
+        # add navigation items to scroll area
+        self.addSubInterface(self.folderInterface, FIF.FOLDER, 'Folder library', NavigationItemPosition.SCROLL)
+
+        # add item to bottom
+        self.addSubInterface(self.settingInterface, FIF.SETTING, 'Settings', NavigationItemPosition.BOTTOM)
+
+        self.stackWidget.currentChanged.connect(self.onCurrentInterfaceChanged)
+        self.stackWidget.setCurrentIndex(1)
+
+    def addSubInterface(self, w: QWidget, icon, text, position=NavigationItemPosition.TOP):
+        self.stackWidget.addWidget(w)
+        self.navigationInterface.addItem(
+            routeKey=w.objectName(),
+            icon=icon,
+            text=text,
+            onClick=lambda: self.switchTo(w),
+            position=position
+        )
+
+    def initWindow(self):
+        self.resize(500, 600)
+        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)
+
+        self.setQss()
+
+    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())
+
+    def showMessageBox(self):
+        w = MessageBox(
+            'This is a help message',
+            'You clicked a customized navigation widget. You can add more custom widgets by calling `NavigationInterface.addWidget()` 😉',
+            self
+        )
+        w.exec()
+
+
+if __name__ == '__main__':
+    app = QApplication(sys.argv)
+    w = Window()
+    w.show()
+    app.exec()