from rscder.plugins.basic import BasicPlugin

from PyQt5.QtWidgets import QDialog, QAction, QApplication, QLabel, QTextEdit, QVBoxLayout
from PyQt5.QtCore import Qt
from PyQt5.QtGui import QIcon

class AboutDialog(QDialog):
    def __init__(self, parent=None):
        super(AboutDialog, self).__init__(parent)
        self.setWindowTitle("About")
        self.setFixedSize(800, 400)
        
        self.label = QLabel("<h1>"+ QApplication.applicationName()  + "</h1>")
        self.label.setAlignment(Qt.AlignCenter)
        self.label.setStyleSheet("font-size: 20px;")

        self.label2 = QLabel("<h2>Version: " + QApplication.applicationVersion() + "</h2>")
        self.label2.setAlignment(Qt.AlignCenter)
        self.label2.setStyleSheet("font-size: 15px;")

        self.label3 = QLabel("<h2>" + QApplication.organizationName() + "</h2>")
        self.label3.setAlignment(Qt.AlignCenter)
        self.label3.setStyleSheet("font-size: 15px;")

        self.label4 = QLabel("<h3>Copyright (c) 2020</h3>")
        self.label4.setAlignment(Qt.AlignCenter)
        self.label4.setStyleSheet("font-size: 10px;")

        self.text = QTextEdit()
        self.text.setReadOnly(True)
        self.text.setText('''
        This program is free software: you can redistribute it and/or modify
        it under the terms of the GNU General Public License as published by
        the Free Software Foundation, either version 3 of the License, or
        (at your option) any later version.
         ''')

        self.layout = QVBoxLayout()
        self.layout.addWidget(self.label)
        self.layout.addWidget(self.label2)
        self.layout.addWidget(self.label3)
        self.layout.addWidget(self.label4)
        self.layout.addWidget(self.text)
        self.setLayout(self.layout)


class AboutPlugin(BasicPlugin):

    @staticmethod
    def info():
        return {
            'name': '关于',
            'author': 'RSCDER',
            'version': '1.0.0',
            'description': '关于'
        }

    def set_action(self):
        menu = self.ctx['help_menu']
        action = QAction('&关于', self.ctx['menu_bar'])
        action.triggered.connect(self.on_about)

        menu.addAction(action)
    
    def on_about(self):
        # print('on_about')
        dialog = AboutDialog(self.ctx['mainwindow'])
        dialog.show()