GUI 강의 1

1 .Hello World

import sys,os
import PyQt5
from PyQt5 import *
from PyQt5.QtGui import *
from PyQt5.QtCore import *
from PyQt5.QtWidgets import *

class Main(QDialog):
    def __init__(self):
        super().__init__()
        self.init_ui()

    def init_ui(self):
        layout = QVBoxLayout()
        label_widget = QLabel("Hello world!")
        layout.addWidget(label_widget)
        self.setLayout(layout)

        self.show()

if __name__ =='__main__':
    app = QApplication(sys.argv)
    main = Main()
    sys.exit(app.exec_())

실행 화면

저 레이아웃에 넣어준 위젯은 라벨 위젯 하나이므로 저 Hello world! 가 출력된다.

창 크기 키워주기

 

#창 크기를 키워보자
    self.resize(500,500)
    self.show()

 

버튼 위젯 추가

def init_ui(self):
    layout = QVBoxLayout()
    label_widget = QLabel("Hello world!")
    button_widget = QPushButton("click me")
    
    layout.addWidget(button_widget)
    layout.addWidget(label_widget)
    self.setLayout(layout)

 

콤보 박스 위젯 추가

def init_ui(self):
    layout = QVBoxLayout()
    label_widget = QLabel("Hello world!")
    button_widget = QPushButton("click me")
    combo_widget = QComboBox()
    
    layout.addWidget(combo_widget)
    layout.addWidget(button_widget)
    layout.addWidget(label_widget)
    self.setLayout(layout)

 

def init_ui(self):
    layout = QVBoxLayout()
    label_widget = QLabel("Hello world!")
    button_widget = QPushButton("click me")
    combo_widget = QComboBox()
    combo_widget.addItem("Python")
    combo_widget.addItem("c")
    combo_widget.addItem("kotlin")
    combo_widget.addItem("c++")
    combo_widget.addItem("java")

    layout.addWidget(combo_widget)
    layout.addWidget(button_widget)
    layout.addWidget(label_widget)
    self.setLayout(layout)

체크 박스 위젯 만들기

def init_ui(self):
    layout = QVBoxLayout()
    label_widget = QLabel("Hello world!")
    button_widget = QPushButton("click me")
    combo_widget = QComboBox()
    combo_widget.addItem("Python")
    combo_widget.addItem("c")
    combo_widget.addItem("kotlin")
    combo_widget.addItem("c++")
    combo_widget.addItem("java")

    check_box_summer_widget = QCheckBox("Summer")
    check_box_winter_widget = QCheckBox("Winter")

    layout.addWidget(label_widget)

    layout.addWidget(combo_widget)
    layout.addWidget(button_widget)
    layout.addWidget(check_box_winter_widget)
    layout.addWidget(check_box_summer_widget)
    self.setLayout(layout)

#창 크기를 키워보자
    self.resize(500,500)
    self.show()

radio 버튼 위젯 만들기

radio 버튼: 여러 버튼 중 하나만 선택 가능하다. 

def init_ui(self):
    layout = QVBoxLayout()
    label_widget = QLabel("Hello world!")
    button_widget = QPushButton("click me")
    combo_widget = QComboBox()
    combo_widget.addItem("Python")
    combo_widget.addItem("c")
    combo_widget.addItem("kotlin")
    combo_widget.addItem("c++")
    combo_widget.addItem("java")

    check_box_summer_widget = QCheckBox("Summer")
    check_box_winter_widget = QCheckBox("Winter")

    radio_button_widget_male = QRadioButton("male")
    radio_buttion_widget_female = QRadioButton("female")

    layout.addWidget(label_widget)
    layout.addWidget(combo_widget)
    layout.addWidget(button_widget)
    layout.addWidget(check_box_winter_widget)
    layout.addWidget(check_box_summer_widget)
    layout.addWidget(radio_button_widget_male)
    layout.addWidget(radio_buttion_widget_female)
    self.setLayout(layout)

스핀 박스 위젯 추가하기

def init_ui(self):
    layout = QVBoxLayout()
    label_widget = QLabel("Hello world!")
    button_widget = QPushButton("click me")
    combo_widget = QComboBox()
    combo_widget.addItem("Python")
    combo_widget.addItem("c")
    combo_widget.addItem("kotlin")
    combo_widget.addItem("c++")
    combo_widget.addItem("java")

    check_box_summer_widget = QCheckBox("Summer")
    check_box_winter_widget = QCheckBox("Winter")

    radio_button_widget_male = QRadioButton("male")
    radio_buttion_widget_female = QRadioButton("female")
    
    spin_box_widget = QSpinBox()

    layout.addWidget(label_widget)
    layout.addWidget(combo_widget)
    layout.addWidget(button_widget)
    layout.addWidget(check_box_winter_widget)
    layout.addWidget(check_box_summer_widget)
    layout.addWidget(radio_button_widget_male)
    layout.addWidget(radio_buttion_widget_female)
    layout.addWidget(spin_box_widget)
    self.setLayout(layout)

 

def init_ui(self):
    layout = QVBoxLayout()
    label_widget = QLabel("Hello world!")
    button_widget = QPushButton("click me")
    combo_widget = QComboBox()
    combo_widget.addItem("Python")
    combo_widget.addItem("c")
    combo_widget.addItem("kotlin")
    combo_widget.addItem("c++")
    combo_widget.addItem("java")

    check_box_summer_widget = QCheckBox("Summer")
    check_box_winter_widget = QCheckBox("Winter")

    radio_button_widget_male = QRadioButton("male")
    radio_buttion_widget_female = QRadioButton("female")

    spin_box_widget = QSpinBox()
    date_widget= QDateEdit()
    time_widget = QTimeEdit()  
    list_widget = QListWidget()
    item_1 = QListWidgetItem("cat")
    item_2 = QListWidgetItem("dog")
    list_widget.addItem(item_1)
    list_widget.addItem(item_2)

    layout.addWidget(label_widget)
    layout.addWidget(combo_widget)
    layout.addWidget(button_widget)
    layout.addWidget(check_box_winter_widget)
    layout.addWidget(check_box_summer_widget)
    layout.addWidget(radio_button_widget_male)
    layout.addWidget(radio_buttion_widget_female)
    layout.addWidget(spin_box_widget)
    layout.addWidget(date_widget)
    layout.addWidget(time_widget)
    layout.addWidget(list_widget)
    self.setLayout(layout)

#창 크기를 키워보자
    self.resize(500,500)
    self.show()