startup.py

from view.ui.startup import Ui_StartupWidget
from model.project import Project
from view.new_project import NewProjectDialog
from view.main_window import MainWindow
from PyQt5.QtWidgets import QWidget, QFileDialog
from model.fbs import AppInfo
import os.path


class StartupWidget(QWidget):

    def __init__(self):
        QWidget.__init__(self)
        self.ui = Ui_StartupWidget()
        self.ui.setupUi(self)
        self.ui.new_project_button.clicked.connect(self.on_clicked_new_project_button)
        self.ui.open_project_button.clicked.connect(self.on_clicked_open_project_button)
        self.new_project_window = NewProjectDialog()
        self.main_window = None
        self.new_project_window.back_to_startup.connect(self.open_start_up_widget)
        self.new_project_window.new_project_canceled.connect(self.open_start_up_widget)
        self.new_project_window.close_old_project.connect(self.close_old_project)

    def on_clicked_new_project_button(self):
        self.new_project_window.setWindowTitle('新規プロジェクトを作成')
        self.new_project_window.come_from_main_window_flag = False
        self.new_project_window.show()
        self.close()

    def on_clicked_open_project_button(self):
        project_file_path = QFileDialog.getOpenFileName(self,
                                                        'プロジェクトを開く',
                                                        os.path.expanduser('~'),
                                                        AppInfo().app_name() + ' プロジェクト(*.sdt);;すべてのファイル(*.*)')[0]
        if not project_file_path:
            return

        self.move_to_main_window(project_file_path)

    def move_to_main_window(self, project_file_path):
        Project.load_settings_file(project_file_path)
        project_name = os.path.basename(os.path.splitext(project_file_path)[0])
        window_title = project_name + ' - ' + AppInfo().app_name() + ' Version ' + AppInfo().version()

        self.main_window = MainWindow()

        self.main_window.setWindowTitle(window_title)
        self.main_window.show()
        self.close()
        self.main_window.back_to_new_project.connect(self.new_project_window.open_new_project_widget)
        self.main_window.back_to_startup.connect(self.open_start_up_widget)

    def open_start_up_widget(self):
        self.setWindowTitle(AppInfo().app_name() + ' Version ' + AppInfo().version())
        if self.main_window:
            self.main_window = MainWindow()
        self.show()

    def close_old_project(self):
        self.main_window = self.new_project_window.main_window