wip: navigation system - NavItemWidgets

requirements.dev.txt

@@ -2,3 +2,4 @@ black == 23.7.0
 isort == 5.12.0
 imageio==2.31.4
 Nuitka==1.8.4
+pytest==7.4.3

requirements.txt

@@ -2,3 +2,4 @@ arcaea-offline==0.1.0
 arcaea-offline-ocr==0.1.0
 exif==1.6.0
 PySide6==6.5.2
+typing-extensions==4.8.0

tests/ui/navigation/test_navhost.py

@@ -0,0 +1,31 @@
+from ui.navigation.navhost import NavHost
+from ui.navigation.navitem import NavItem
+
+
+class TestNavHost:
+    def test_auto_append_parent(self):
+        navHost = NavHost()
+
+        navHost.registerNavItem(NavItem(id="aaa.bbb.ccc.ddd"))
+
+        navItems = navHost.navItems
+
+        assert NavItem(id="aaa.bbb.ccc.ddd") in navItems
+        assert NavItem(id="aaa.bbb.ccc") in navItems
+        assert NavItem(id="aaa.bbb") in navItems
+        assert NavItem(id="aaa") in navItems
+
+    def test_auto_select_child(self):
+        navHost = NavHost()
+
+        navHost.registerNavItem(NavItem(id="aaa"))
+        navHost.registerNavItem(NavItem(id="bbb"))
+
+        assert navHost.currentNavItem.id == "aaa"
+
+        navHost.registerNavItem(NavItem(id="aaa.bbb"))
+        navHost.registerNavItem(NavItem(id="aaa.ccc"))
+
+        navHost.navigate("aaa")
+
+        assert navHost.currentNavItem.id == "aaa.bbb"

ui/components/mainwindow/animatedstackednavitemwidgets.py

@@ -0,0 +1,47 @@
+from PySide6.QtWidgets import QWidget
+
+from ui.navigation.navhost import NavHost, navHost
+from ui.navigation.navitem import NavItem
+from ui.navigation.navitemwidgets import NavItemWidgets
+from ui.widgets.slidingstackedwidget import SlidingStackedWidget
+
+
+class AnimatedStackedNavItemsWidgets(SlidingStackedWidget):
+    def __init__(
+        self, navItemWidgets: NavItemWidgets, navHost: NavHost = navHost, parent=None
+    ):
+        super().__init__(parent)
+
+        self.navItemWidgets = navItemWidgets
+        self.navHost = navHost
+
+        self.navHost.activated.connect(self.__switchTo)
+        self.animationFinished.connect(self.endChangingWidget)
+
+    def __switchTo(self, oldNavItem: NavItem, newNavItem: NavItem):
+        oldNavItemDepth = self.navHost.getNavItemDepth(oldNavItem.id)
+        newNavItemDepth = self.navHost.getNavItemDepth(newNavItem.id)
+
+        if oldNavItemDepth != newNavItemDepth:
+            slidingDirection = (
+                self.slidingDirection.RightToLeft
+                if newNavItemDepth > oldNavItemDepth
+                else self.slidingDirection.LeftToRight
+            )
+        else:
+            slidingDirection = self.slidingDirection.TopToBottom
+
+        newWidget = self.navItemWidgets.get(newNavItem.id) or QWidget()
+        self.startChangingWidget(newWidget, slidingDirection)
+
+    def startChangingWidget(self, newWidget: QWidget, slidingDirection):
+        newIndex = self.addWidget(newWidget)
+        [self.widget(i).setEnabled(False) for i in range(self.count())]
+        self.slideInIdx(newIndex, slidingDirection)
+
+    def endChangingWidget(self):
+        oldWidget = self.widget(0)
+        self.removeWidget(oldWidget)
+
+        newWidget = self.widget(0)
+        newWidget.setEnabled(True)

ui/navigation/navhost.py

@@ -0,0 +1,151 @@
+import logging
+from dataclasses import dataclass
+from typing import Optional
+
+from PySide6.QtCore import QObject, Signal
+
+from .navitem import NavItem
+
+logger = logging.getLogger(__name__)
+
+
+@dataclass
+class NavItemRelatives:
+    parent: Optional[NavItem]
+    children: list[NavItem]
+
+
+class NavHost(QObject):
+    activated = Signal(NavItem, NavItem)
+
+    navItemsChanged = Signal()
+
+    def __init__(self, parent=None):
+        super().__init__(parent)
+
+        self.__navItems: list[NavItem] = []
+        self.__cachedNavItems: list[NavItem] = []
+        self.__currentNavItem: NavItem = None
+
+    def __flushCachedNavItems(self):
+        navItems = set(self.__navItems)
+
+        for item in self.__navItems:
+            parts = item.id.split(".")
+            for i in range(1, len(parts)):
+                parentItemId = ".".join(parts[:i])
+                navItems.add(NavItem(id=parentItemId))
+
+        self.__cachedNavItems = list(navItems)
+
+    @property
+    def navItems(self) -> list[NavItem]:
+        return self.__cachedNavItems
+
+    @property
+    def currentNavItem(self) -> NavItem:
+        if self.__currentNavItem:
+            return self.__currentNavItem
+
+        if self.__navItems:
+            self.__currentNavItem = self.__navItems[0]
+            return self.__currentNavItem
+
+    def findNavItem(self, navItemId: str) -> Optional[NavItem]:
+        navItemIds = [item.id for item in self.__navItems]
+        try:
+            index = navItemIds.index(navItemId)
+            return self.__navItems[index]
+        except IndexError:
+            return None
+
+    def isNavigatingBack(self, oldNavItemId: str, newNavItemId: str) -> bool:
+        # sourcery skip: class-extract-method
+        # |     oldNavItemId      |    newNavItemId    | back? |
+        # |-----------------------|--------------------|-------|
+        # | database.manage.packs |      database      | True  |
+        # |      ocr.device       |        ocr         | True  |
+        # | database.manage.songs |      ocr.b30       | False |
+        # |       database        |      database      | False |
+
+        oldNavItemIdSplitted = self.getNavItemIdSplitted(oldNavItemId)
+        newNavItemIdSplitted = self.getNavItemIdSplitted(newNavItemId)
+
+        return self.getNavItemDepth(newNavItemId) < self.getNavItemDepth(
+            oldNavItemId
+        ) and all((idFrag in oldNavItemIdSplitted) for idFrag in newNavItemIdSplitted)
+
+    def isChild(self, childNavItemId: str, parentNavItemId: str) -> bool:
+        childNavItemIdSplitted = self.getNavItemIdSplitted(childNavItemId)
+        parentNavItemIdSplitted = self.getNavItemIdSplitted(parentNavItemId)
+
+        return all(
+            (idFrag in childNavItemIdSplitted) for idFrag in parentNavItemIdSplitted
+        )
+
+    def getNavItemIdSplitted(self, navItemId: str) -> list[str]:
+        return navItemId.split(".")
+
+    def getNavItemDepth(self, navItemId: str) -> int:
+        return len(self.getNavItemIdSplitted(navItemId))
+
+    def getNavItemRelatives(self, navItemId: str) -> NavItemRelatives:
+        parent = None
+        if "." in navItemId:
+            navItemIdSplitted = navItemId.split(".")
+            parentId = navItemIdSplitted[:-1]
+            parent = self.findNavItem(".".join(parentId))
+
+        if not navItemId:
+            # return root navItems
+            children = [navItem for navItem in self.__navItems if "." not in navItem.id]
+        else:
+            children = [
+                navItem
+                for navItem in self.__navItems
+                if navItem.id.startswith(navItemId)
+                and navItem.id != navItemId
+                and self.getNavItemDepth(navItem.id)
+                == self.getNavItemDepth(navItemId) + 1
+            ]
+
+        return NavItemRelatives(parent=parent, children=children)
+
+    def registerNavItem(self, item: NavItem):
+        self.__navItems.append(item)
+        self.__flushCachedNavItems()
+        self.navItemsChanged.emit()
+
+    def navigate(self, navItemId: str):
+        oldNavItem = self.__currentNavItem or NavItem("")
+        newNavItem = self.findNavItem(navItemId)
+
+        if newNavItem is None:
+            raise IndexError(
+                f"Cannot find '{navItemId}' in {repr(self)}. "
+                "Maybe try registering it?"
+            )
+
+        # if the navItem have children, navigate to first child
+        # but if the navItem is going back, e.g. 'database.manage' -> 'database'
+        # then don't navigate to it's child.
+        if self.isNavigatingBack(oldNavItem.id, newNavItem.id):
+            # navItem is going back
+            currentNavItem = newNavItem
+        else:
+            newNavItemRelatives = self.getNavItemRelatives(newNavItem.id)
+            if newNavItemRelatives.children:
+                currentNavItem = newNavItemRelatives.children[0]
+            else:
+                currentNavItem = newNavItem
+
+        self.__currentNavItem = currentNavItem
+        self.activated.emit(oldNavItem, self.currentNavItem)
+
+    def navigateUp(self):
+        navItemRelatives = self.getNavItemRelatives(self.currentNavItem.id)
+        if navItemRelatives.parent:
+            self.navigate(navItemRelatives.parent.id)
+
+
+navHost = NavHost()

ui/navigation/navitem.py

@@ -0,0 +1,17 @@
+from dataclasses import dataclass
+from typing import Optional
+
+from PySide6.QtCore import QCoreApplication
+from PySide6.QtGui import QIcon, QPixmap
+
+
+@dataclass
+class NavItem:
+    id: str
+    icon: Optional[QIcon | QPixmap | str] = None
+
+    def text(self):
+        return QCoreApplication.translate("NavItem", f"{self.id}.title")
+
+    def __hash__(self):
+        return hash(self.id)

ui/navigation/navitemwidgets.py

@@ -0,0 +1,84 @@
+from PySide6.QtCore import QObject
+from PySide6.QtGui import QFont
+from PySide6.QtWidgets import QLabel, QSizePolicy, QSpacerItem, QVBoxLayout, QWidget
+
+from ui.navigation.navhost import NavHost, navHost
+from ui.navigation.navitem import NavItem
+from ui.navigation.navsidebar import NavigationSideBar
+
+
+class DefaultParentNavItemWidget(QWidget):
+    def __init__(self, navItem: NavItem, navItemChildren: list[NavItem], parent=None):
+        super().__init__(parent)
+
+        self.navItem = navItem
+
+        self.partialNavHost = NavHost(self)
+        self.partialNavHost.registerNavItem(navItem)
+        for _navItem in navItemChildren:
+            self.partialNavHost.registerNavItem(_navItem)
+        self.partialNavHost.navigate(navItem.id)
+
+        self.verticalLayout = QVBoxLayout(self)
+
+        self.navItemLabelFont = QFont(self.font())
+        self.navItemLabelFont.setPointSize(14)
+        self.navItemLabel = QLabel(self)
+        self.navItemLabel.setFont(self.navItemLabelFont)
+
+        spacer = QSpacerItem(
+            20, 20, QSizePolicy.Policy.Preferred, QSizePolicy.Policy.Expanding
+        )
+
+        self.verticalLayout.addSpacerItem(spacer)
+
+        self.navSideBar = NavigationSideBar(self, self.partialNavHost)
+        self.navSideBar.navigateUpButton.setEnabled(False)
+        self.verticalLayout.addWidget(self.navSideBar)
+
+        self.verticalLayout.addSpacerItem(spacer)
+
+        self.retranslateUi()
+
+    def retranslateUi(self):
+        self.navItemLabel.setText(self.navItem.text())
+
+
+class NavItemWidgets(QObject):
+    def __init__(self, parent=None):
+        super().__init__(parent)
+
+        self.__map: dict[str, QWidget] = {}
+        # this reference holds all the `DefaultParentNavItemWidget`s
+        # since these widgets are created with no parents, not keeping a reference to
+        # them may result in errors, even a silent app crash that is hard to debug
+        self.__defaultParentWidgetRefs: dict[str, QWidget] = {}
+
+    def register(self, navItemId: str, widget: QWidget):
+        self.__map[navItemId] = widget
+
+    def unregister(self, navItemId: str) -> bool:
+        try:
+            widget = self.__map.pop(navItemId)
+            widget.deleteLater()
+            return True
+        except KeyError:
+            return False
+
+    def get(self, navItemId: str) -> QWidget | None:
+        widget = self.__map.get(navItemId)
+        if widget is not None:
+            return widget
+        elif navItemChildren := navHost.getNavItemRelatives(navItemId).children:
+            if self.__defaultParentWidgetRefs.get(navItemId) is None:
+                defaultParentNavItemWidget = DefaultParentNavItemWidget(
+                    navHost.findNavItem(navItemId), navItemChildren
+                )
+                self.__defaultParentWidgetRefs[navItemId] = defaultParentNavItemWidget
+                defaultParentNavItemWidget.partialNavHost.activated.connect(
+                    lambda o, n: navHost.navigate(n.id)
+                )
+
+            return self.__defaultParentWidgetRefs.get(navItemId)
+        else:
+            return None

ui/navigation/navsidebar.py

@@ -0,0 +1,190 @@
+from PySide6.QtCore import QModelIndex, Qt, Signal, Slot
+from PySide6.QtGui import QFont, QIcon, QKeySequence, QShortcut
+from PySide6.QtWidgets import (
+    QListWidget,
+    QListWidgetItem,
+    QPushButton,
+    QVBoxLayout,
+    QWidget,
+)
+
+from ui.navigation.navhost import NavHost, NavItem, navHost
+from ui.widgets.slidingstackedwidget import SlidingStackedWidget
+
+
+class NavItemListWidget(QListWidget):
+    NavItemRole = Qt.ItemDataRole.UserRole
+
+    def __init__(self, parent=None):
+        super().__init__(parent)
+
+        font = QFont(self.font())
+        font.setPointSize(14)
+        self.setFont(font)
+
+        self.clicked.connect(self.activated)
+
+    def setNavItems(self, items: list[NavItem]):
+        self.clear()
+
+        for navItem in items:
+            if navItem.icon:
+                listWidgetItem = QListWidgetItem(QIcon(navItem.icon), navItem.text())
+            else:
+                listWidgetItem = QListWidgetItem(navItem.text())
+            listWidgetItem.setData(self.NavItemRole, navItem)
+            listWidgetItem.setTextAlignment(
+                Qt.AlignmentFlag.AlignLeading | Qt.AlignmentFlag.AlignVCenter
+            )
+
+            self.addItem(listWidgetItem)
+
+    def selectNavItem(self, navItemId: str):
+        navItemIds = [
+            self.item(r).data(self.NavItemRole).id for r in range(self.count())
+        ]
+        index = navItemIds.index(navItemId)
+        self.setCurrentIndex(self.model().index(index, 0))
+
+
+class NavigationWidget(QWidget):
+    def __init__(self, parent=None):
+        super().__init__(parent)
+
+        self.navHost = navHost
+
+        self.verticalLayout = QVBoxLayout(self)
+        self.verticalLayout.setContentsMargins(0, 0, 0, 0)
+
+        self.backButton = QPushButton(QIcon(":/icons/back.svg"), "")
+        self.backButton.setFlat(True)
+        self.backButton.setFixedHeight(20)
+        self.verticalLayout.addWidget(self.backButton)
+
+        self.navListWidget = NavItemListWidget(self)
+        self.verticalLayout.addWidget(self.navListWidget)
+
+    def setNavigationItems(self, items: list[NavItem]):
+        self.navListWidget.setNavItems(items)
+
+
+class NavigationSideBar(QWidget):
+    navItemActivated = Signal(NavItem)
+
+    def __init__(self, parent=None, navHost=navHost):
+        super().__init__(parent)
+
+        self.navHost = None
+        self.navigateUpKeyboardShortcut = QShortcut(
+            QKeySequence(Qt.Modifier.ALT | Qt.Key.Key_Left), self, lambda: True
+        )
+
+        self.verticalLayout = QVBoxLayout(self)
+
+        self.navigateUpButton = QPushButton(QIcon(":/icons/back.svg"), "")
+        self.navigateUpButton.setFlat(True)
+        self.navigateUpButton.setFixedHeight(20)
+        self.verticalLayout.addWidget(self.navigateUpButton)
+
+        self.slidingStackedWidget = SlidingStackedWidget(self)
+        self.slidingStackedWidget.animationFinished.connect(
+            self.endChangingNavItemListWidget
+        )
+        self.verticalLayout.addWidget(self.slidingStackedWidget)
+
+        navItemListWidget = NavItemListWidget(self)
+        navItemListWidget.activated.connect(self.navItemListWidgetActivatedProxy)
+        self.slidingStackedWidget.addWidget(navItemListWidget)
+
+        self.setNavHost(navHost)
+        self.reloadNavWidget()
+
+    def setNavHost(self, navHost: NavHost):
+        if self.navHost is not None:
+            self.navHost.navItemsChanged.disconnect(self.reloadNavWidget)
+            self.navHost.activated.disconnect(self.navItemChanged)
+            self.navigateUpKeyboardShortcut.activated.disconnect(
+                self.navHost.navigateUp
+            )
+            self.navigateUpButton.clicked.disconnect(self.navHost.navigateUp)
+
+        self.navHost = navHost
+
+        self.navHost.navItemsChanged.connect(self.reloadNavWidget)
+        self.navHost.activated.connect(self.navItemChanged)
+        self.navigateUpKeyboardShortcut.activated.connect(self.navHost.navigateUp)
+        self.navigateUpButton.clicked.connect(self.navHost.navigateUp)
+
+    @Slot(QModelIndex)
+    def navItemListWidgetActivatedProxy(self, index: QModelIndex):
+        self.navHost.navigate(index.data(NavItemListWidget.NavItemRole).id)
+        self.navItemActivated.emit(index.data(NavItemListWidget.NavItemRole))
+
+    def fillNavItemListWidget(
+        self, currentNavItem: NavItem, listWidget: NavItemListWidget
+    ):
+        currentNavItemParent = self.navHost.getNavItemRelatives(
+            currentNavItem.id
+        ).parent
+        currentNavItems = self.navHost.getNavItemRelatives(
+            currentNavItemParent.id if currentNavItemParent else ""
+        )
+        listWidget.setNavItems(currentNavItems.children)
+        listWidget.selectNavItem(currentNavItem.id)
+
+    def reloadNavWidget(self):
+        self.fillNavItemListWidget(
+            self.navHost.currentNavItem, self.slidingStackedWidget.widget(0)
+        )
+        self.navItemChanged(self.navHost.currentNavItem, self.navHost.currentNavItem)
+
+    @Slot(NavItem, NavItem)
+    def navItemChanged(self, oldNavItem: NavItem, newNavItem: NavItem):
+        # update navigateUpButton text
+        if newNavItemParent := self.navHost.getNavItemRelatives(newNavItem.id).parent:
+            self.navigateUpButton.setText(newNavItemParent.text())
+        else:
+            self.navigateUpButton.setText("Arcaea Offline")
+
+        # update navItemListWidget
+        oldNavItemIdSplitted = self.navHost.getNavItemIdSplitted(oldNavItem.id)
+        newNavItemIdSplitted = self.navHost.getNavItemIdSplitted(newNavItem.id)
+
+        oldNavItemDepth = len(oldNavItemIdSplitted)
+        newNavItemDepth = len(newNavItemIdSplitted)
+
+        if oldNavItemDepth != newNavItemDepth:
+            # navItem depth changed, replace current NavItemListWidget
+            newNavItemListWidget = NavItemListWidget(self)
+            slidingDirection = (
+                self.slidingStackedWidget.slidingDirection.RightToLeft
+                if newNavItemDepth > oldNavItemDepth
+                else self.slidingStackedWidget.slidingDirection.LeftToRight
+            )
+
+            self.fillNavItemListWidget(newNavItem, newNavItemListWidget)
+            newNavItemListWidget.activated.connect(self.navItemListWidgetActivatedProxy)
+
+            self.startChangingNavItemListWidget(newNavItemListWidget, slidingDirection)
+
+    def startChangingNavItemListWidget(
+        self, newNavItemListWidget: NavItemListWidget, slidingDirection
+    ):
+        newIndex = self.slidingStackedWidget.addWidget(newNavItemListWidget)
+        [
+            self.slidingStackedWidget.widget(i).setEnabled(False)
+            for i in range(self.slidingStackedWidget.count())
+        ]
+        self.navigateUpButton.setEnabled(False)
+        self.navigateUpKeyboardShortcut.setEnabled(False)
+        self.slidingStackedWidget.slideInIdx(newIndex, slidingDirection)
+
+    def endChangingNavItemListWidget(self):
+        oldWidget = self.slidingStackedWidget.widget(0)
+        self.slidingStackedWidget.removeWidget(oldWidget)
+        oldWidget.deleteLater()
+
+        newWidget = self.slidingStackedWidget.widget(0)
+        newWidget.setEnabled(True)
+        self.navigateUpButton.setEnabled(True)
+        self.navigateUpKeyboardShortcut.setEnabled(True)

ui/resources/icons/back.svg

@@ -0,0 +1,59 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   width="24"
+   height="24"
+   viewBox="0 0 24 24"
+   version="1.1"
+   id="svg1"
+   inkscape:version="1.3 (0e150ed6c4, 2023-07-21)"
+   sodipodi:docname="back.svg"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
+  <sodipodi:namedview
+     id="namedview1"
+     pagecolor="#ffffff"
+     bordercolor="#000000"
+     borderopacity="0.25"
+     inkscape:showpageshadow="2"
+     inkscape:pageopacity="0.0"
+     inkscape:pagecheckerboard="true"
+     inkscape:deskcolor="#d1d1d1"
+     inkscape:document-units="px"
+     showgrid="true"
+     inkscape:zoom="24.40625"
+     inkscape:cx="15.323944"
+     inkscape:cy="10.632522"
+     inkscape:current-layer="layer1">
+    <inkscape:grid
+       id="grid4"
+       units="px"
+       originx="12"
+       originy="12"
+       spacingx="1"
+       spacingy="1"
+       empcolor="#0099e5"
+       empopacity="0.30196078"
+       color="#0099e5"
+       opacity="0.14901961"
+       empspacing="5"
+       dotted="false"
+       gridanglex="30"
+       gridanglez="30"
+       visible="true" />
+  </sodipodi:namedview>
+  <defs
+     id="defs1" />
+  <g
+     inkscape:label="图层 1"
+     inkscape:groupmode="layer"
+     id="layer1">
+    <path
+       style="fill:none;fill-opacity:1;fill-rule:evenodd;stroke:#000000;stroke-width:2;stroke-dasharray:none;stroke-opacity:1"
+       d="M 17,2 7,12 17,22"
+       id="path2" />
+  </g>
+</svg>

ui/resources/resources.qrc

@@ -8,6 +8,8 @@
 
     <file>fonts/GeosansLight.ttf</file>
 
+    <file>icons/back.svg</file>
+
     <file>images/icon.png</file>
     <file>images/logo.png</file>
     <file>images/jacket-placeholder.png</file>

ui/widgets/slidingstackedwidget.py

@@ -0,0 +1,231 @@
+"""
+Adapted from https://github.com/Qt-Widgets/SlidingStackedWidget-1
+
+    MIT License
+    Copyright (c) 2020 Tim Schneeberger (ThePBone) <tim.schneeberger(at)outlook.de>
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+    The above copyright notice and this permission notice shall be included in all
+    copies or substantial portions of the Software.
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+    SOFTWARE.
+"""
+
+
+from enum import IntEnum
+
+from PySide6.QtCore import (
+    QAbstractAnimation,
+    QEasingCurve,
+    QParallelAnimationGroup,
+    QPoint,
+    QPropertyAnimation,
+    Signal,
+)
+from PySide6.QtWidgets import (
+    QGraphicsEffect,
+    QGraphicsOpacityEffect,
+    QStackedWidget,
+    QWidget,
+)
+
+
+class SlidingDirection(IntEnum):
+    Auto = 0
+    LeftToRight = 1
+    RightToLeft = 2
+    TopToBottom = 3
+    BottomToTop = 4
+
+
+class SlidingStackedWidget(QStackedWidget):
+    slidingDirection = SlidingDirection
+
+    animationFinished = Signal()
+
+    def __init__(self, parent=None):
+        super().__init__(parent)
+
+        self.vertical = False
+        self.speedMs = 300
+        self.animationEasingCurve = QEasingCurve.Type.OutQuart
+        self.animationCurrentIndex = 0
+        self.animationNextIndex = 0
+        self.animationCurrentPoint = QPoint(0, 0)
+        self.animationRunning = False
+
+        self.wrap = False
+        self.opacityAnimation = False
+
+    def setVertical(self, vertical: bool):
+        self.vertical = vertical
+
+    def setSpeedMs(self, speedMs: int):
+        self.speedMs = speedMs
+
+    def setAnimationEasingCurve(self, easingCurve: QEasingCurve.Type):
+        self.animationEasingCurve = easingCurve
+
+    def setWrap(self, wrap: bool):
+        self.wrap = wrap
+
+    def setOpacityAnimation(self, value: bool):
+        self.opacityAnimation = value
+
+    def slideInNext(self) -> bool:
+        currentIndex = self.currentIndex()
+        if self.wrap or (currentIndex < self.count() - 1):
+            self.slideInIdx(currentIndex + 1)
+        else:
+            return False
+        return True
+
+    def slideInPrev(self) -> bool:
+        currentIndex = self.currentIndex()
+        if self.wrap or (currentIndex > 0):
+            self.slideInIdx(currentIndex - 1)
+        else:
+            return False
+        return True
+
+    def slideInIdx(self, idx: int, direction: SlidingDirection = SlidingDirection.Auto):
+        if idx > self.count() - 1:
+            direction = (
+                SlidingDirection.TopToBottom
+                if self.vertical
+                else SlidingDirection.RightToLeft
+            )
+            idx %= self.count()
+        elif idx < 0:
+            direction = (
+                SlidingDirection.BottomToTop
+                if self.vertical
+                else SlidingDirection.LeftToRight
+            )
+            idx = (idx + self.count()) % self.count()
+
+        self.slideInWgt(self.widget(idx), direction)
+
+    def slideInWgt(self, newwidget: QWidget, direction: SlidingDirection):
+        if self.animationRunning:
+            return
+
+        self.animationRunning = True
+
+        autoDirection = SlidingDirection.LeftToRight
+
+        currentIndex = self.currentIndex()
+        nextIndex = self.indexOf(newwidget)
+        if currentIndex == nextIndex:
+            self.animationRunning = False
+            return
+        elif currentIndex < nextIndex:
+            autoDirection = (
+                SlidingDirection.TopToBottom
+                if self.vertical
+                else SlidingDirection.RightToLeft
+            )
+        else:
+            autoDirection = (
+                SlidingDirection.BottomToTop
+                if self.vertical
+                else SlidingDirection.LeftToRight
+            )
+
+        if direction == SlidingDirection.Auto:
+            direction = autoDirection
+
+        offsetX = self.frameRect().width()
+        offsetY = self.frameRect().height()
+
+        self.widget(nextIndex).setGeometry(0, 0, offsetX, offsetY)
+        if direction == SlidingDirection.BottomToTop:
+            offsetX = 0
+            offsetY = -offsetY
+        elif direction == SlidingDirection.TopToBottom:
+            offsetX = 0
+        elif direction == SlidingDirection.RightToLeft:
+            offsetX = -offsetX
+            offsetY = 0
+        elif direction == SlidingDirection.LeftToRight:
+            offsetY = 0
+
+        nextPoint = self.widget(nextIndex).pos()
+        currentPoint = self.widget(currentIndex).pos()
+        self.animationCurrentPoint = currentPoint
+        self.widget(nextIndex).move(nextPoint.x() - offsetX, nextPoint.y() - offsetY)
+
+        self.widget(nextIndex).show()
+        self.widget(nextIndex).raise_()
+
+        currentWidgetAnimation = self.widgetPosAnimation(currentIndex)
+        currentWidgetAnimation.setStartValue(QPoint(currentPoint.x(), currentPoint.y()))
+        currentWidgetAnimation.setEndValue(
+            QPoint(offsetX + currentPoint.x(), offsetY + currentPoint.y())
+        )
+
+        nextWidgetAnimation = self.widgetPosAnimation(nextIndex)
+        nextWidgetAnimation.setStartValue(
+            QPoint(-offsetX + nextPoint.x(), offsetY + nextPoint.y())
+        )
+        nextWidgetAnimation.setEndValue(QPoint(nextPoint.x(), nextPoint.y()))
+
+        animationGroup = QParallelAnimationGroup(self)
+        animationGroup.addAnimation(currentWidgetAnimation)
+        animationGroup.addAnimation(nextWidgetAnimation)
+
+        if self.opacityAnimation:
+            currentWidgetOpacityEffect = QGraphicsOpacityEffect()
+            currentWidgetOpacityEffectAnimation = self.widgetOpacityAnimation(
+                currentIndex, currentWidgetOpacityEffect, 1, 0
+            )
+
+            nextWidgetOpacityEffect = QGraphicsOpacityEffect()
+            nextWidgetOpacityEffect.setOpacity(0)
+            nextWidgetOpacityEffectAnimation = self.widgetOpacityAnimation(
+                nextIndex, nextWidgetOpacityEffect, 0, 1
+            )
+
+            animationGroup.addAnimation(currentWidgetOpacityEffectAnimation)
+            animationGroup.addAnimation(nextWidgetOpacityEffectAnimation)
+
+        animationGroup.finished.connect(self.animationDoneSlot)
+        self.animationNextIndex = nextIndex
+        self.animationCurrentIndex = currentIndex
+        self.animationRunning = True
+        animationGroup.start(QAbstractAnimation.DeletionPolicy.DeleteWhenStopped)
+
+    def widgetPosAnimation(self, widgetIndex: int):
+        result = QPropertyAnimation(self.widget(widgetIndex), b"pos")
+        result.setDuration(self.speedMs)
+        result.setEasingCurve(self.animationEasingCurve)
+        return result
+
+    def widgetOpacityAnimation(
+        self, widgetIndex: int, graphicEffect: QGraphicsEffect, startValue, endValue
+    ):
+        self.widget(widgetIndex).setGraphicsEffect(graphicEffect)
+        result = QPropertyAnimation(graphicEffect, b"opacity")
+        result.setDuration(round(self.speedMs / 2))
+        result.setStartValue(startValue)
+        result.setEndValue(endValue)
+        result.finished.connect(
+            lambda: graphicEffect.deleteLater() if graphicEffect is not None else ...
+        )
+        return result
+
+    def animationDoneSlot(self):
+        self.setCurrentIndex(self.animationNextIndex)
+        self.widget(self.animationCurrentIndex).hide()
+        self.widget(self.animationCurrentIndex).move(self.animationCurrentPoint)
+        self.animationRunning = False
+        self.animationFinished.emit()