import sys
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *

class MyWindow(QWidget):
    def __init__(self):
        super().__init__()
        self.initUI()

    def initUI(self):
        self.setWindowTitle('SWH Academy Window.')
        
        centerGeometry = QDesktopWidget().availableGeometry().center()
        self.resize(300, 300)
        frameGeometry = self.frameGeometry()
        frameGeometry.moveCenter(centerGeometry)

        idLabel = QLabel("아이디 : ")
        ageLabel = QLabel("나이 : ")
        self.idLineEdit = QLineEdit()
        self.ageLineEdit = QLineEdit()
        
        self.registerButton = QPushButton("회원가입")
        self.registerButton.clicked.connect(self.registerButtonClicked)
        self.fontButton= QPushButton("폰트 고르기")
        self.fontButton.clicked.connect(self.fontButtonClicked)
        self.bgButton = QPushButton("배경색 바꾸기")
        self.bgButton.clicked.connect(self.bgColorButtonClicked)
        self.fileButton = QPushButton("파일 창")
        self.fileButton.clicked.connect(self.fileButtonClicked)
        self.textEdit = QTextEdit()

        layout = QGridLayout()

        layout.addWidget(idLabel, 0, 0)
        layout.addWidget(self.idLineEdit, 0, 1)

        layout.addWidget(ageLabel, 1, 0)
        layout.addWidget(self.ageLineEdit, 1, 1)
        layout.addWidget(self.registerButton, 1, 2)
        
        layout.addWidget(self.fontButton, 2, 0)
        layout.addWidget(self.bgButton, 2, 1)
        layout.addWidget(self.fileButton, 2, 2)
        
        layout.addWidget(self.textEdit, 3, 0)

        self.setLayout(layout)
        
    def registerButtonClicked(self):
        id, ok = QInputDialog.getText(self, '회원가입', '아이디를 입력하세요:')
        if ok:
            age, ok = QInputDialog.getInt(self, '회원가입', '나이를 입력하세요:')
            if ok:
                self.idLineEdit.setText(str(id))
                self.ageLineEdit.setText(str(age))
                
    def fontButtonClicked(self):
        font, ok = QFontDialog.getFont()
        print(font)
        if ok:
            self.idLineEdit.setFont(font)
            self.ageLineEdit.setFont(font)
                
    def bgColorButtonClicked(self):
        color = QColorDialog.getColor()
        print(color)
        if color.isValid():
            self.setStyleSheet('QWidget { background-color: %s }' % color.name())
            
    def fileButtonClicked(self):
        fname = QFileDialog.getOpenFileName(self, '파일 열기', './')
        print(fname)
        if fname[0]:
            with open(fname[0], 'r') as f:
                data = f.read()
                self.textEdit.setText(data)
                
    def closeEvent(self, event):
        ack = QMessageBox.question(self, '종료', '창을 닫을래요?', QMessageBox.Yes | QMessageBox.No)
        if ack == QMessageBox.Yes:
            event.accept()
        else:
            event.ignore()
                
if __name__ == "__main__":
    app = QApplication(sys.argv)
    window = MyWindow()
    window.show()
    sys.exit(app.exec_())