#! /usr/bin/env python3

# -*- coding:utf-8 -*-

###############################################################

# kenwaldek MIT-license

# Title: PyQt5 lesson 14 Version: 1.0

# Date: 09-01-17 Language: python3

# Description: pyqt5 gui and opening files

# pythonprogramming.net from PyQt4 to PyQt5

###############################################################

# do something

import sys

from PyQt5.QtCore import QCoreApplication, Qt

from PyQt5.QtGui import QIcon, QColor

from PyQt5.QtWidgets import QApplication, QWidget, QMainWindow, QPushButton, QAction, QMessageBox

from PyQt5.QtWidgets import QCalendarWidget, QFontDialog, QColorDialog, QTextEdit, QFileDialog

from PyQt5.QtWidgets import QCheckBox, QProgressBar, QComboBox, QLabel, QStyleFactory, QLineEdit, QInputDialog

class window(QMainWindow):

def __init__(self):

super(window, self).__init__()

self.setGeometry(50, 50, 800, 500)

self.setWindowTitle('pyqt5 Tut')

self.setWindowIcon(QIcon('pic.png'))

extractAction = QAction('&Get to the choppah', self)

extractAction.setShortcut('Ctrl+Q')

extractAction.setStatusTip('leave the app')

extractAction.triggered.connect(self.close_application)

openEditor = QAction('&Editor', self)

openEditor.setShortcut('Ctrl+E')

openEditor.setStatusTip('Open Editor')

openEditor.triggered.connect(self.editor)

openFile = QAction('&Open File', self)

openFile.setShortcut('Ctrl+O')

openFile.setStatusTip('Open File')

openFile.triggered.connect(self.file_open)

self.statusBar()

mainMenu = self.menuBar()

fileMenu = mainMenu.addMenu('&File')

fileMenu.addAction(extractAction)

fileMenu.addAction(openFile)

editorMenu = mainMenu.addMenu('&Editor')

editorMenu.addAction(openEditor)

extractAction = QAction(QIcon('pic.png'), 'flee the scene', self)

extractAction.triggered.connect(self.close_application)

self.toolBar = self.addToolBar('extraction')

self.toolBar.addAction(extractAction)

fontChoice = QAction('Font', self)

fontChoice.triggered.connect(self.font_choice)

# self.toolBar = self.addToolBar('Font')

self.toolBar.addAction(fontChoice)

cal = QCalendarWidget(self)

cal.move(500, 200)

cal.resize(200, 200)

self.home()

def editor(self):

self.textEdit = QTextEdit()

self.setCentralWidget(self.textEdit)

def file_open(self):

# need to make name an tupple otherwise i had an error and app crashed

name, _ = QFileDialog.getOpenFileName(self, 'Open File', options=QFileDialog.DontUseNativeDialog)

print('tot na dialog gelukt')

file = open(name, 'r')

print('na het inlezen gelukt')

self.editor()

with file:

text = file.read()

self.textEdit.setText(text)

##End of code problem

def color_picker(self):

color = QColorDialog.getColor()

self.styleChoice.setStyleSheet('QWidget{background-color: %s}' % color.name())

def font_choice(self):

font, valid = QFontDialog.getFont()

if valid:

self.styleChoice.setFont(font)

def home(self):

btn = QPushButton('quit', self)

btn.clicked.connect(self.close_application)

btn.resize(btn.sizeHint())

btn.move(0, 100)

checkBox = QCheckBox('Enlarge window', self)

# checkBox.toggle() # if you want to be checked in in the begin

checkBox.move(0, 50)

checkBox.stateChanged.connect(self.enlarge_window)

self.progress = QProgressBar(self)

self.progress.setGeometry(200, 80, 250, 20)

self.btn = QPushButton('download', self)

self.btn.move(200, 120)

self.btn.clicked.connect(self.download)

self.styleChoice = QLabel('Windows', self)

comboBox = QComboBox(self)

comboBox.addItem('motif')

comboBox.addItem('Windows')

comboBox.addItem('cde')

comboBox.addItem('Plastique')

comboBox.addItem('Cleanlooks')

comboBox.addItem('windowsvista')

comboBox.move(25, 250)

self.styleChoice.move(25, 150)

comboBox.activated[str].connect(self.style_choice)

color = QColor(0,0,0)

fontColer = QAction('font bg color', self)

fontColer.triggered.connect(self.color_picker)

self.toolBar.addAction(fontColer)

self.show()

def style_choice(self, text):

self.styleChoice.setText(text)

QApplication.setStyle(QStyleFactory.create(text))

def download(self):

self.completed = 0

while self.completed < 100:

self.completed += 0.0001

self.progress.setValue(self.completed)

def enlarge_window(self, state):

if state == Qt.Checked:

self.setGeometry(50, 50, 1000, 600)

else:

self.setGeometry(50, 50 , 500, 300)

def close_application(self):

choice = QMessageBox.question(self, 'Message',

"Are you sure to quit?", QMessageBox.Yes |

QMessageBox.No, QMessageBox.No)

if choice == QMessageBox.Yes:

print('quit application')

sys.exit()

else:

pass

if __name__ == "__main__": # had to add this otherwise app crashed

def run():

app = QApplication(sys.argv)

Gui = window()

sys.exit(app.exec_())

run()