Mini -Project #2-3 GUI 계산기 만들기(pyside6) - 완료

일반적인 기능 완료

추가기능
1. MR,MS,MC, 적용
2. BS(back space) 기능 추가
3. 숫자 display text 크기 증가(알아보기 쉽게)

다음 예정
1. 주석 추가(이해, 분석등 내용 추가)

import sys
from PySide6 import QtCore, QtGui

from PySide6.QtWidgets import QApplication, QMainWindow, QLineEdit, QPushButton, QHBoxLayout, QVBoxLayout, QWidget, QGridLayout, QLabel
from PySide6.QtCore import Slot, Qt

import re

result = ''
result_state = False
count = 0
MS_number = 0


class MyWidget(QMainWindow):
    def __init__(self):
        super().__init__()
        self.setFixedSize(300, 600)
        self.setWindowTitle("Caculate by KKD")
        print(id(self))

        # create display
        self.text_edit = QLineEdit("", self)
        self.text_edit2 = QLineEdit("", self)
        self.text_edit.setFixedSize(280, 40)
        self.text_edit2.setFixedSize(100, 20)
        self.text_label = QLabel("Memory Number")
        font = self.text_label.font()
        font.setPointSize(10)
        self.text_label.setFont(font)
        font = self.text_edit.font()
        font.setPointSize(15)
        self.text_edit.setFont(font)
        # 오른쪽 정렬
        self.text_edit.setAlignment(Qt.AlignRight)
        self.text_edit2.setAlignment(Qt.AlignRight)
        # 읽기만 가능하게
        self.text_edit.setReadOnly(True)
        self.text_edit2.setReadOnly(True)

        # button 만들기
        self.createButtons()

        # set main layout
        main_layout = QVBoxLayout()
        main_layout2 = QHBoxLayout()
        main_layout.addWidget(self.text_edit)
        main_layout2.addWidget(self.text_label)
        main_layout2.addWidget(self.text_edit2)
        main_layout.addLayout(main_layout2)
        main_layout.addLayout(self.buttons_layout)
        central_widget = QWidget(self)
        central_widget.setLayout(main_layout)
        self.setCentralWidget(central_widget)

    def createButtons(self):
        global count
        self.buttons = {
            "MC": (0, 0),
            "MR": (0, 1),
            "MS": (0, 2),
            "BS": (0, 3),
            "(": (0, 4),
            "(": (1, 0),
            ")": (1, 1),
            "%": (1, 2),
            "AC": (1, 3),
            "7": (2, 0),
            "8": (2, 1),
            "9": (2, 2),
            "/": (2, 3),
            "4": (3, 0),
            "5": (3, 1),
            "6": (3, 2),
            "*": (3, 3),
            "1": (4, 0),
            "2": (4, 1),
            "3": (4, 2),
            "-": (4, 3),
            "0": (5, 0),
            ".": (5, 1),
            "=": (5, 2),
            "+": (5, 3)
        }
        # print(self.buttons.items())
        # print(type(self.buttons.items()))

        self.buttons_layout = QGridLayout()
        for btn_text, pos in self.buttons.items():
            # print("btn_text = ",btn_text)
            # print("pos = ",pos)
            button = QPushButton(btn_text)
            # print(type(button))
            button.clicked.connect(self.handle_button)
            self.buttons_layout.addWidget(button, pos[0], pos[1])
            button.setFixedSize(50, 50)
            font = button.font()
            font.setPointSize(15)
            button.setFont(font)

    def handle_button(self):
        global result_state
        global MS_number
        # print(result_state)
        button = self.sender()
        if button.text() == "=":
            try:
                temp = self.text_edit.text()
                result = eval(self.text_edit.text())
                self.text_edit.setText(temp + button.text() + str(result))
                result_state = True
            except:
                self.text_edit.setText("Error")
        elif button.text() == "AC":
            self.text_edit.clear()
        elif button.text() == "BS":
            text = self.text_edit.text()
            print(text[:-1])
            print(len(text))
            if len(text) > 0:
                self.text_edit.setText(text[:-1])
        elif button.text() == "MS":
            result_state = False
            MS_number = self.text_edit.text()
            value = MS_number[MS_number.index("=")+1:]
            self.text_edit.clear()
            self.text_edit2.setText(value)
            MS_number = value
            print(MS_number)
        elif button.text() == "MR":
            print(MS_number)
            result_state = False
            self.text_edit.setText(self.text_edit.text() + MS_number)
        elif button.text() == "MC":
            MS_number = ''
            print(MS_number)
            # self.text_edit.setText(MS_number)
            self.text_edit2.setText(MS_number)
        else:
            if result_state == True:
                self.text_edit.clear()
                self.text_edit.setText(self.text_edit.text() + button.text())
                result_state = False
            else:
                self.text_edit.setText(self.text_edit.text() + button.text())


if __name__ == "__main__":
    app = QApplication()

    widget = MyWidget()

    widget.show()

    sys.exit(app.exec())