Many widget
------------

- This example introduces various PyQt5 sub-widgets:

.. code-block:: python
  :caption: scripts/PYQT2/02_sub_widget/01_many_widget/main.py
  :linenos:
  
  # -*- coding: utf-8 -*-

  from PyQt5.QtWidgets import (QMainWindow, QApplication, QPushButton, QLabel, QVBoxLayout, QWidget, QLineEdit, 
                              QRadioButton, QComboBox, QCheckBox, QSlider, QTextEdit, QDateEdit, QTimeEdit, 
                              QDateTimeEdit, QDial, QProgressBar)

  class MainWindow(QMainWindow):
      def __init__(self, parent=None):
          super(MainWindow, self).__init__(parent)
          
          self.init_ui()
          
      def init_ui(self):
          layout = QVBoxLayout()

          # QLineEdit: 텍스트 입력 상자
          self.text_input = QLineEdit(self)
          self.text_input.setPlaceholderText("Type something here")
          layout.addWidget(self.text_input)
          
          # QTextEdit: 멀티라인 텍스트 입력 상자
          self.text_edit = QTextEdit(self)
          layout.addWidget(self.text_edit)
          
          # QRadioButton: 라디오 버튼
          self.radio_button1 = QRadioButton("Option 1", self)
          self.radio_button2 = QRadioButton("Option 2", self)
          layout.addWidget(self.radio_button1)
          layout.addWidget(self.radio_button2)
          
          # QCheckBox: 체크박스
          self.checkbox = QCheckBox("Check me out!", self)
          layout.addWidget(self.checkbox)

          # QComboBox: 드롭다운 메뉴
          self.combo_box = QComboBox(self)
          self.combo_box.addItems(["Choice 1", "Choice 2", "Choice 3"])
          layout.addWidget(self.combo_box)

          # QSlider: 슬라이더
          self.slider = QSlider(self)
          layout.addWidget(self.slider)

          # QDial: 다이얼
          self.dial = QDial(self)
          layout.addWidget(self.dial)

          # QDateEdit, QTimeEdit, QDateTimeEdit: 날짜 및 시간 선택
          self.date_edit = QDateEdit(self)
          layout.addWidget(self.date_edit)
          
          self.time_edit = QTimeEdit(self)
          layout.addWidget(self.time_edit)
          
          self.datetime_edit = QDateTimeEdit(self)
          layout.addWidget(self.datetime_edit)

          # QProgressBar: 진행 바
          self.progress_bar = QProgressBar(self)
          layout.addWidget(self.progress_bar)

          # 버튼 추가: 사용자 입력 확인
          self.submit_button = QPushButton("Submit", self)
          layout.addWidget(self.submit_button)
          
          # 사용자 입력 내용을 출력할 라벨 추가
          self.output_label = QLabel("", self)
          layout.addWidget(self.output_label)

          # 버튼 클릭 시 실행될 슬롯(함수) 연결
          self.submit_button.clicked.connect(self.display_input)

          # QVBoxLayout을 메인 윈도우에 설정
          central_widget = QWidget(self)
          central_widget.setLayout(layout)
          self.setCentralWidget(central_widget)

      def display_input(self):
          text = self.text_input.text()
          text_edit_content = self.text_edit.toPlainText()
          option = self.radio_button1.text() if self.radio_button1.isChecked() else self.radio_button2.text()
          checkbox_status = "Checked" if self.checkbox.isChecked() else "Not Checked"
          choice = self.combo_box.currentText()
          slider_value = str(self.slider.value())
          dial_value = str(self.dial.value())
          date_value = self.date_edit.date().toString()
          time_value = self.time_edit.time().toString()
          datetime_value = self.datetime_edit.dateTime().toString()

          output = ("Text Input: %s\n"
                  "Text Edit: %s\n"
                  "Selected Option: %s\n"
                  "Checkbox Status: %s\n"
                  "Selected Choice: %s\n"
                  "Slider Value: %s\n"
                  "Dial Value: %s\n"
                  "Date: %s\n"
                  "Time: %s\n"
                  "DateTime: %s") % (text, text_edit_content, option, checkbox_status, choice, slider_value, dial_value, date_value, time_value, datetime_value)

          self.output_label.setText(output)
          
  if __name__ == "__main__":
      app = QApplication([])
      mainWindow = MainWindow()
      mainWindow.show()
      app.exec_()


- ``QLineEdit``: A widget for inputting a single line of text.

-  ``QTextEdit``: A widget for inputting multiple lines of text.

-  ``QRadioButton``: A widget that allows the user to choose one of many options.

- ``QCheckBox``: A checkbox widget indicating whether it's checked or not.

- ``QComboBox``: A widget allowing selection from a dropdown list.

- ``QSlider`` and ``QDial``: Widgets to slide or turn to select values.

- ``QDateEdit``, ``QTimeEdit``, ``QDateTimeEdit``: Widgets to select date, time, or both.

-  ``QProgressBar``: A graphical representation of progress.

These sub-widgets are used to receive various types of input from users or to present information. This example demonstrates the basic functionalities and how each widget is used.