MoPyX sample PySide2 app

Code

This is the full code of the application. The UI was designed in Qt Designer.

import sys

from PySide2.QtWidgets import QMainWindow, QApplication, QTableWidgetItem
from mopyx import model, render, render_call, action

from mopyx_sample.ui.Ui_MainWindow import Ui_MainWindow


@model
class RootModel:
    def __init__(self):
        self.first_name = ""
        self.last_name = ""
        self.items = []

        self.selectedItemIndex = -1


root_model = RootModel()


class MainWindow(QMainWindow, Ui_MainWindow):
    def __init__(self) -> None:
        super(MainWindow, self).__init__()

        self.setupUi(self)

        self.update_from_model()
        self.wire_ui_signals()

    def wire_ui_signals(self):
        self.first_name_edit.textEdited.connect(self.set_first_name)
        self.last_name_edit.textEdited.connect(self.set_last_name)

        self.items_table.itemSelectionChanged.connect(self.set_selected_item_index)

        self.item_button_add.clicked.connect(self.add_item)
        self.item_button_move_up.clicked.connect(self.move_up_item)
        self.item_button_move_down.clicked.connect(self.move_down_item)
        self.item_button_delete.clicked.connect(self.delete_item)

    @render
    def update_from_model(self):
        render_call(
            lambda: self.full_name_label.setText(
                f"{root_model.first_name} {root_model.last_name}"))

        self.update_table_items()
        self.update_buttons()

    @render(ignore_updates=True)
    def update_table_items(self):
        self.items_table.setRowCount(len(root_model.items))
        self.items_table.setColumnCount(1)

        for i in range(len(root_model.items)):
            self.items_table.setItem(i, 0, QTableWidgetItem(root_model.items[i]))

        render_call(lambda: self.items_table.setCurrentCell(root_model.selectedItemIndex, 0),
                    ignore_updates=True)

        if root_model.items:
            self.selected_items_label.setText(f"Items are: {', '.join(root_model.items)}")
        else:
            self.selected_items_label.setText("There are no items")

    @render(ignore_updates=True)
    def update_buttons(self):
        self.item_button_move_up.setEnabled(root_model.selectedItemIndex > 0)
        self.item_button_move_down.setEnabled(
            root_model.selectedItemIndex < len(root_model.items) - 1 and root_model.selectedItemIndex >= 0)
        self.item_button_delete.setEnabled(root_model.selectedItemIndex >= 0)

    @action
    def set_selected_item_index(self):
        root_model.selectedItemIndex = self.items_table.currentRow()

    def add_item(self):
        root_model.items.append(self.item_name_edit.text())
        self.item_name_edit.setText("")

    @action
    def move_up_item(self):
        index = root_model.selectedItemIndex
        items = root_model.items

        items[index], items[index - 1] = items[index - 1], items[index]

        root_model.selectedItemIndex -= 1

    @action
    def move_down_item(self):
        index = root_model.selectedItemIndex
        items = root_model.items

        items[index], items[index + 1] = items[index + 1], items[index]

        root_model.selectedItemIndex += 1

    @action
    def delete_item(self):
        del root_model.items[root_model.selectedItemIndex]
        root_model.selectedItemIndex -= 1

    def set_last_name(self, value):
        root_model.last_name = value

    def set_first_name(self, value):
        root_model.first_name = value


def main():
    app = QApplication(sys.argv)
    MainWindow().show()

    ret = app.exec_()
    sys.exit(ret)


if __name__ == '__main__':
    main()