**Guided Tour Planning App: Creating a Custom Map Interface with Qt and PySide6** Imagine a travel company that offers guided tours to various national parks in the United States. The company wants to develop an app that allows customers to plan their tours and view custom maps with the tour routes. This is where the Guided Tour Planning App comes in - an innovative application that utilizes Qt and PySide6 to create a user-friendly, map-based interface. **Installation and Setup:** To begin, you'll need to install the necessary libraries and tools. Ensure you have Qt Creator and PySide6 (or PyQt6) installed on your system. For this example, we'll use PySide6. ```bash pip install PySide6 ``` Clone the Qt Project repository to obtain the Qt Creator and other necessary tools. **Core GUI Components:** The Guided Tour Planning App will make use of several GUI components such as QMapView, QInputDialog, and QStandardItemModel. **Model and View Implementation:** We'll use a custom `TourModel` to store and retrieve the tour data. This model will be connected to a view (`QTreeView`). ```python from PySide6.QtCore import Qt,TableModel,QObject from PySide6.QtWidgets import QTreeView, QInputDialog from PySide6.QtGui import QStandardItemModel class TourModel(Object): def __init__(self): super().__init__() self.data = [] def add_tour(self, name, destination): self.data.append({"name": name, "destination": destination}) def get_tours(self): return self.data class TourTreeView(QTreeView): def __init__(self): super().__init__() self.model = QStandardItemModel() self.setModel(self.model) self.model.setHorizontalHeaderLabels(["Tour Name", "Destination"]) def add_tour(self, name, destination): self.model.appendRow([QStandardItem(name), QStandardItem(destination)]) ``` **Implementing QMapView:** To view the tour maps, we'll use QMapView from the QScxml class. This class allows us to create a custom map interface. ```python from PySide6.QtSensors import QScxml from PySide6.QtPositioning import GeographicCoordinate from PySide6.QtMapGraphics import QMapGraphicsView class CustomMapView(QMapGraphicsView): def __init__(self): super().__init__() self.map = QScxmlMap(QMapGraphicsItem.ItemIsMovable) self.map.setCenter(GeographicCoordinate(37.7749, -122.4194)) self.setScene(self.map) def add_route(self, path): self.map.createRoute(path) # Create a QScxmlMap and set it as the scene in the map view. self.map_view.setScene(self.map) ``` **Implementation of the Guided Tour Planning App Interface:** ```python from PySide6.QtWidgets import QMainWindow, QWidget, QVBoxLayout, QPushButton, QFileDialog, QComboBox from PySide6.QtCore import Qt, SLOT class GuidedTourPlanningApp(QMainWindow): def __init__(self): super().__init__() self.initUI() self.tour_model = TourModel() self.add_button.clicked.connect(self.add_tour) self.map_view = CustomMapView() self.tour_tree_view.add_tour("Grand Canyon", "Arizona") self.map_view.add_route(["37.7749,-122.4194","37.7749,-122.4194","37.7749,-122.4194"]) def initUI(self): self.setGeometry(200, 200, 800, 600) self.central_widget = QWidget() self.main_layout = QVBoxLayout() self.main_layout.addWidget(self.tour_tree_view) self.main_layout.addWidget(self.map_view) self.central_widget.setLayout(self.main_layout) self.setCentralWidget(self.central_widget) self.tour_button = QPushButton("Add Tour") self.add_button.clicked.connect(self.add_tour) self.save_button = QPushButton("Save Tours") self.save_button.clicked.connect(self.save_tours) self.load_button = QPushButton("Load Tours") self.load_button.clicked.connect(self.load_tours) self.clear_button = QPushButton("Clear") self.clear_button.clicked.connect(self.clear_tour_list) def add_tour(self): tour_name, ok1 = QInputDialog.getText(self, "Tour Details", "Enter tour name") destination, ok2 = QInputDialog.getText(self, "Tour Details", "Enter destination") if ok1 and ok2: self.tour_model.add_tour(tour_name, destination) self.tour_tree_view.add_tour(tour_name, destination) path, ok3 = QFileDialog.getSaveFileName(self, "Map File","tour_map.qml", '*.qlm') if ok3: self.map_view.add_route(path) def load_tours(self): self.tour_model = TourModel() file_path, ok = QFileDialog.getOpenFileName(self, "Tour Model","*qlm") if ok: self.tour_model = QScxmlTour(file_path) self.tour_tree_view.setModel(self.tour_model) def save_tours(self): self.tour_model = QScxmlTour() file_path, ok = QFileDialog.getSaveFileName(self, "Tour Model","tour_model.qlm", '*.qlm') if ok: self.tour_model.save_to_file(file_path) ``` This application has an intuitive user interface that includes a QTreeView to display the tours and a custom QScxmlMapViewer to view the tour maps. It allows users to easily manage their tours, add new tours, save tours to a file, and load tours from files. **Testing and Debugging:** After running the application, go to the Tour Details window and add a new tour by providing a tour name and destination. Repeat this process for tours that cover multiple locations along the United States. Set the QScxmlMap to display a custom map view. The result is a comprehensive and interactive map that highlights the U.S. National parks a traveler must have visited on the guided tour. Note: The map view is simplified and this example won't cover the full functionality of a real-world application. You will need to make some further adjustments to align the map marker with the displayed tour locations' GPS coordinates.