/
qt_demo5.py
132 lines (104 loc) · 4.14 KB
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qt_demo5.py
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#!/usr/bin/env python2.7
#
# $Id: qt_101.py,v 0.2 2016/06/28 13:42:01 kc4zvw Exp kc4zvw $
#
# vim: ts=4:
import sys
from PyQt4 import QtGui, QtCore
#class PrettyGui(QtGui.QWidget): <-- we changed to QMainWindow for a status bar
class PrettyGui(QtGui.QMainWindow):
""" Make it Object Oriented """
def __init__(self):
super(PrettyGui, self).__init__() # Python2 call base class
self._init_ui()
def _init_ui(self):
""" Setup how our dialog """
main_widget = QtGui.QWidget()
self.setCentralWidget(main_widget)
self.setWindowTitle("Hello World")
#widget.move(300, 300)
# Set absolute window size and position
#self.setGeometry(300, 300, 250, 150)
self.resize(250, 250)
self.center()
exit_action = QtGui.QAction(QtGui.QIcon('exit.png'),
'E&xit',
self)
exit_action.setShortcut('Ctrl+X')
exit_action.setStatusTip('Exit the app')
exit_action.triggered.connect(self.close)
#exit_action.triggered.connect(QtGui.qApp.quit)
menu_bar = self.menuBar()
file_menu = menu_bar.addMenu('&File')
file_menu.addAction(exit_action)
self.stats_bar = self.statusBar()
self.stats_bar.showMessage("Are you ready for some QT!")
self.text_edit = QtGui.QTextEdit()
self.text_edit.setText("Hello World from Python/Qt")
#self.setCentralWidget(text_edit)
quit_button = QtGui.QPushButton('&Quit')
quit_button.setToolTip("Quit the application")
quit_button.resize(quit_button.sizeHint())
#quit_button.resize(50, 50)
#quit_button.move(0, 50)
quit_button.clicked.connect(QtCore.QCoreApplication.instance().quit)
label = QtGui.QLabel('Special label')
lcd = QtGui.QLCDNumber()
lcd.setSegmentStyle(QtGui.QLCDNumber.Flat)
#QLCDNumber{color:rgb(85, 85, 255);background-color:rgb(0, 170, 255);}
# get the palette
palette = lcd.palette()
# foreground color
palette.setColor(palette.WindowText, QtGui.QColor(85, 85, 255))
# background color
palette.setColor(palette.Background, QtGui.QColor(0, 170, 255))
# "light" border
palette.setColor(palette.Light, QtGui.QColor(255, 0, 0))
# "dark" border
palette.setColor(palette.Dark, QtGui.QColor(0, 255, 0))
# set the palette
lcd.setPalette(palette)
slider = QtGui.QSlider(QtCore.Qt.Horizontal)
slider.valueChanged.connect(lcd.display)
slider.valueChanged.connect(self.slide_me)
vbox = QtGui.QVBoxLayout()
vbox.addStretch(1)
vbox.addWidget(lcd)
vbox.addWidget(slider)
vbox.addWidget(self.text_edit)
vbox.addWidget(quit_button)
main_widget.setLayout(vbox)
# This is critical
self.show()
def slide_me(self, value):
current_size = self.frameSize()
self.text_edit.setText("Too low level is " + str(value))
self.stats_bar.showMessage("It's current raining outside: {0}".format(value))
#self.resize(current_size.width() + value, current_size.height())
def center(self):
"""Automatically center dialog to available Geometry"""
current_rect = self.frameGeometry()
cp = QtGui.QDesktopWidget().availableGeometry().center()
current_rect.moveCenter(cp)
self.move(current_rect.topLeft())
def closeEvent(self, event):
"""QT: Trigger on the [X] close"""
reply = QtGui.QMessageBox.question(self,
'Finished?',
'Are you really sure?',
QtGui.QMessageBox.Yes | QtGui.QMessageBox.No,
QtGui.QMessageBox.No)
if reply == QtGui.QMessageBox.Yes:
event.accept()
else:
event.ignore()
""" ============================================================ """
def main():
""" Main Driver for PrettyGui """
app = QtGui.QApplication(sys.argv)
prettygui = PrettyGui()
exit_code = app.exec_()
sys.exit(exit_code)
if __name__ == "__main__":
main()
# End of Script