10000 Merge pull request #60 from realpython/pyqt-calculator-tutorial · realpython/materials@06bcbdf · GitHub
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Merge pull request #60 from realpython/pyqt-calculator-tutorial
Pyqt Calculator Tutorial
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‎pyqt-calculator-tutorial/examples/dialog.py

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# Filename: dialog.py
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"""Dialog-Style application."""
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import sys
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from PyQt5.QtWidgets import QApplication
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from PyQt5.QtWidgets import QDialog
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from PyQt5.QtWidgets import QLineEdit
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from PyQt5.QtWidgets import QVBoxLayout
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from PyQt5.QtWidgets import QFormLayout
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from PyQt5.QtWidgets import QDialogButtonBox
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class Dialog(QDialog):
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"""Dialog."""
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def __init__(self, parent=None):
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"""Initializer."""
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super().__init__(parent)
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self.setWindowTitle("QDialog")
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dlgLayout = QVBoxLayout()
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formLayout = QFormLayout()
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formLayout.addRow("Name:", QLineEdit())
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formLayout.addRow("Age:", QLineEdit())
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formLayout.addRow("Job:", QLineEdit())
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formLayout.addRow("Hobbies:", QLineEdit())
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dlgLayout.addLayout(formLayout)
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btns = QDialogButtonBox()
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btns.setStandardButtons(QDialogButtonBox.Cancel | QDialogButtonBox.Ok)
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dlgLayout.addWidget(btns)
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self.setLayout(dlgLayout)
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if __name__ == "__main__":
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app = QApplication(sys.argv)
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dlg = Dialog()
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dlg.show()
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sys.exit(app.exec_())

‎pyqt-calculator-tutorial/examples/f_layout.py

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# Filename: f_layout.py
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"""Form layout example."""
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import sys
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from PyQt5.QtWidgets import QApplication
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from PyQt5.QtWidgets import QWidget
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from PyQt5.QtWidgets import QLineEdit
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from PyQt5.QtWidgets import QFormLayout
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app = QApplication(sys.argv)
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window = QWidget()
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window.setWindowTitle("QFormLayout")
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layout = QFormLayout()
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layout.addRow("Name:", QLineEdit())
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layout.addRow("Age:", QLineEdit())
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layout.addRow("Job:", QLineEdit())
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layout.addRow("Hobbies:", QLineEdit())
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window.setLayout(layout)
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window.show()
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sys.exit(app.exec_())

‎pyqt-calculator-tutorial/examples/g_layout.py

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# Filename: g_layout.py
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"""Grid layout example."""
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import sys
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from PyQt5.QtWidgets import QApplication
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from PyQt5.QtWidgets import QWidget
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from PyQt5.QtWidgets import QPushButton
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from PyQt5.QtWidgets import QGridLayout
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app = QApplication(sys.argv)
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window = QWidget()
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window.setWindowTitle("QGridLayout")
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layout = QGridLayout()
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layout.addWidget(QPushButton("Button (0, 0)"), 0, 0)
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layout.addWidget(QPushButton("Button (0, 1)"), 0, 1)
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layout.addWidget(QPushButton("Button (0, 2)"), 0, 2)
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layout.addWidget(QPushButton("Button (1, 0)"), 1, 0)
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layout.addWidget(QPushButton("Button (1, 1)"), 1, 1)
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layout.addWidget(QPushButton("Button (1, 2)"), 1, 2)
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layout.addWidget(QPushButton("Button (2, 0)"), 2, 0)
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layout.addWidget(QPushButton("Button (2, 1) + 2 Columns Span"), 2, 1, 1, 2)
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window.setLayout(layout)
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window.show()
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sys.exit(app.exec_())

‎pyqt-calculator-tutorial/examples/h_layout.py

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# Filename: h_layout.py
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"""Horizontal layout example."""
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import sys
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from PyQt5.QtWidgets import QApplication
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from PyQt5.QtWidgets import QWidget
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from PyQt5.QtWidgets import QPushButton
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from PyQt5.QtWidgets import QHBoxLayout
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app = QApplication(sys.argv)
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window = QWidget()
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window.setWindowTitle("QHBoxLayout")
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layout = QHBoxLayout()
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layout.addWidget(QPushButton("Right"))
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layout.addWidget(QPushButton("Center"))
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layout.addWidget(QPushButton("Left"))
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window.setLayout(layout)
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window.show()
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sys.exit(app.exec_())

‎pyqt-calculator-tutorial/examples/hello.py

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# Filename: hello.py
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"""Simple Hello World example with PyQt5."""
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import sys
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# 1. Import `QApplication`, and all the required widgets
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from PyQt5.QtWidgets import QApplication
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from PyQt5.QtWidgets import QWidget
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from PyQt5.QtWidgets import QLabel
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# 2. Create an instance of QApplication
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app = QApplication(sys.argv)
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# 3. Create an instance of your application's GUI
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window = QWidget()
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window.setWindowTitle("PyQt5 App")
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window.setGeometry(100, 100, 280, 80)
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window.move(60, 15)
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helloMsg = QLabel("<h1>Hello World!</h1>", parent=window)
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helloMsg.move(60, 15)
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# 4.Show your application's GUI
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window.show()
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# 5. Run your application's event loop (or main loop)
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sys.exit(app.exec_())

‎pyqt-calculator-tutorial/examples/main_window.py

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# Filename: main_window.py
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"""Main Window-Style application."""
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import sys
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from PyQt5.QtWidgets import QApplication
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from PyQt5.QtWidgets import QMainWindow
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from PyQt5.QtWidgets import QLabel
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from PyQt5.QtWidgets import QStatusBar
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from PyQt5.QtWidgets import QToolBar
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class Window(QMainWindow):
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"""Main Window."""
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def __init__(self, parent=None):
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"""Initializer."""
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super().__init__(parent)
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self.setWindowTitle("QMainWindow")
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self.setCentralWidget(QLabel("I'm the Central Widget"))
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self._createMenu()
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self._createToolBar()
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self._createStatusBar()
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def _createMenu(self):
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self.menu = self.menuBar().addMenu("&Menu")
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self.menu.addAction("&Exit", self.close)
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def _createToolBar(self):
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tools = QToolBar()
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self.addToolBar(tools)
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tools.addAction("Exit", self.close)
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def _createStatusBar(self):
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status = QStatusBar()
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status.showMessage("I'm the Status Bar")
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self.setStatusBar(status)
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if __name__ == "__main__":
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app = QApplication(sys.argv)
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win = Window()
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win.show()
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sys.exit(app.exec_())

‎pyqt-calculator-tutorial/examples/signals_slots.py

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# Filename: signals_slots.py
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"""Signals, and Slots example."""
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import sys
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from PyQt5.QtWidgets import QApplication
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from PyQt5.QtWidgets import QWidget
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from PyQt5.QtWidgets import QPushButton
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from PyQt5.QtWidgets import QLabel
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from PyQt5.QtWidgets import QVBoxLayout
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def greeting():
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"""Slot function."""
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msg.setText("Hello World!")
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app = QApplication(sys.argv)
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window = QWidget()
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window.setWindowTitle("Signals, and Slots")
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layout = QVBoxLayout()
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btn = QPushButton("Greet")
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btn.clicked.connect(greeting) # Connect clicked to greeting()
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layout.addWidget(btn)
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msg = QLabel("")
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layout.addWidget(msg)
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window.setLayout(layout)
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window.show()
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sys.exit(app.exec_())

‎pyqt-calculator-tutorial/examples/v_layout.py

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# Filename: v_layout.py
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"""Vertical layout example."""
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import sys
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from PyQt5.QtWidgets import QApplication
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from PyQt5.QtWidgets import QWidget
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from PyQt5.QtWidgets import QPushButton
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from PyQt5.QtWidgets import QVBoxLayout
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app = QApplication(sys.argv)
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window = QWidget()
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window.setWindowTitle("QVBoxLayout")
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layout = QVBoxLayout()
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layout.addWidget(QPushButton("Top"))
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layout.addWidget(QPushButton("Center"))
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layout.addWidget(QPushButton("Bottom"))
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window.setLayout(layout)
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window.show()
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sys.exit(app.exec_())

‎pyqt-calculator-tutorial/pycalc/.gitignore

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# Byte-compiled / optimized
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__pycache__/
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*.py[cod]

‎pyqt-calculator-tutorial/pycalc/LICENSE.txt

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The MIT License (MIT)
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Copyright (c) 2014 Prahlad Yeri
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.

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