class MyApp(QMainWindow):
def __init__(self):
super().__init__()
self._initUI()
def _initUI(self):
self.setContentsMargins(10, 10, 10, 10)
self.statusBar = QStatusBar(self)
self.setStatusBar(self.statusBar)
self.statusBar.showMessage("5초뒤 없어짐", 5000)
group_box = QGroupBox('상태바')
btn1 = QPushButton('상태바 보이기', self)
btn2 = QPushButton('상태바 감추기', self)
btn3 = QPushButton('상태바 텍스트 가져오기', self)
btn4 = QPushButton('상태바 텍스트 변경하기', self)
btn1.clicked.connect(self.onMyStatusBarShow)
btn2.clicked.connect(self.onMyStatusBarHide)
btn3.clicked.connect(self.onMyStatusBarGetText)
btn4.clicked.connect(self.onMyStatusBarChangeText)
v_box = QVBoxLayout()
v_box.addWidget(btn1)
v_box.addWidget(btn2)
v_box.addWidget(btn3)
v_box.addWidget(btn4)
group_box.setLayout(v_box)
self.setCentralWidget(group_box)
self.setWindowTitle('Status Bar')
self.setGeometry(300, 300, 300, 200)
self.show()
def onMyStatusBarShow(self):
self.statusBar.showMessage('Ready')
def onMyStatusBarHide(self):
self.statusBar.clearMessage()
def onMyStatusBarGetText(self):
getMessage = self.statusBar.currentMessage()
print(getMessage)
def onMyStatusBarChangeText(self):
self.statusBar.showMessage("change")
class Window(QMainWindow):
def __init__(self, w, h, parent=None, fn=None):
# Inheritance
super().__init__(parent)
# Basic parameters
self.name = ''
# Style parameters
self.font_size = conf['default-font-size']
self.font = 'font-size: ' + str(conf['default-font-size'])
self.background_color = 'background-color: ' + conf['background-color']
self.font_color = 'color: ' + conf['font-color']
self.font_family = ''
self.style = ''
self._autosaveText = 'Enable autosave'
self._autosave = False
self.encoding = 'utf-8'
# Main widgets
self._editBox = QTextEdit()
self.about_window = About(w * 0.5, h * 0.5)
self._fileDialog = QFileDialog()
self._encodingDialog = encodingDialog(self)
self.closing_with_text = QMessageBox(
QMessageBox.Warning, 'Unsaved text. Still close?',
'There is text not saved in the editor.\n' +
'Do you still want to close the editor?')
self.closing_with_text.setStandardButtons(QMessageBox.Ok
| QMessageBox.Cancel)
# Setting edit box main properties
self.setCentralWidget(self._editBox)
self.resize(int(w), int(h))
self.setFocusPolicy(QtCore.Qt.StrongFocus)
self._editBox.setFocusPolicy(QtCore.Qt.StrongFocus)
self._editBox.setAcceptRichText(False) # Erase format when pasting
# Timer for the autosave
self.timer = QtCore.QTimer()
self.timer.timeout.connect(self.save)
# Shortcuts (https://zetcode.com/pyqt/qshortcut/)
self.ctrlsave = QShortcut(QKeySequence('Ctrl+S'), self)
self.ctrlsave.activated.connect(self.save)
self.quitSc = QShortcut(QKeySequence('Ctrl+Q'), self)
self.quitSc.activated.connect(QApplication.instance().quit)
# Initial functions
if fn != None:
self.openGiven(fn)
self.updateStyle()
self.setWindowTitle('Dark Theme Text Editor')
self._createMenu()
self._createToolBar()
self._createStatusBar()
def _createMenu(self):
self.menu = self.menuBar().addMenu("&Menu")
self.menu.addAction('&Open file', self.openFile)
self.menu.addAction('&Save copy as', self.save_as)
self.menu.addAction('&Change encoding', self.changeEncoding)
self.menu.addAction('&About', self.about)
self.menu.addAction('&Exit', self.close)
self.options = self.menuBar().addMenu("&Options")
self.options.addAction('&Font', self.fontMenu)
def _createToolBar(self):
tools = QToolBar()
self.addToolBar(tools)
tools.addAction('Save', self.save)
tools.addAction('Exit', self.close)
self.saveAction = tools.addAction(self._autosaveText, self.autosave)
def _createStatusBar(self):
self.status = QStatusBar()
self.status.showMessage('New file {:>}'.format('Encoding: ' +
self.encoding))
self.setStatusBar(self.status)
def about(self):
self.about_window.show()
def updateStatusBar(self, text):
self.status.showMessage(text)
self.setStatusBar(self.status)
# SAVE METHODS
def saveFile(self):
file = open(self.name, 'wb')
text = (self._editBox.toPlainText()).encode(self.encoding)
file.write(text)
file.close()
def save(self, bypass=False):
if self.name != '':
self.save_update()
else:
self.name = self._fileDialog.getSaveFileName(self)[0]
if self.name != '':
self.save_update()
else:
self.updateStatusBar('Unsaved file')
def save_update(self):
self.saveFile()
self.updateStatusBar("{:50}{:^9}Last saved: {}".format(
self.name, '|', dt.datetime.today()))
def save_as(self):
self.save(bypass=True)
def autosave(self):
if self._autosave:
self._autosaveText = 'Enable autosave'
self._autosave = True
self.timer.stop()
else:
self._autosaveText = 'Disable autosave'
self._autosave = False
self.timer.start(1000)
self.saveAction.setText(self._autosaveText)
# STYLE METHODS
def changeFontSize(self, size):
self.font = 'font-size:{}px'.format(int(size))
self.updateStyle()
def fontMenu(self):
font, valid = QFontDialog.getFont()
if valid:
self.font_family = 'font-family:"{}";'.format(font)
self.updateStyle()
def updateStyle(self):
self.style = ''
self.style += self.font + ';'
self.style += self.background_color + ';'
self.style += self.font_color + ';'
self.style += self.font_family + ';'
self.setStyleSheet(self.style)
# OTHER METHODS
def openGiven(self, given):
self.name = given
with open(self.name, 'rb') as fn:
self._editBox.setText(fn.read().decode(self.encoding))
def openFile(self):
try:
self.openGiven(QFileDialog.getOpenFileName(self, 'Open file')[0])
except:
QMessageBox.information(
self, 'Wrong encoding',
('In case you see a weird behaivour' +
'with the text displayed.\n' + 'Please check what is the' +
'encoding of you file and set it on ' +
'the application correspondinly.'))
with open(self.name, 'r') as fn:
self._editBox.setText(fn.read())
self.save()
def changeEncoding(self):
retval = self._encodingDialog.getItem()
self.encoding = retval
self.updateStatusBar("{} | {:>}".format(self.status.currentMessage(),
'Encoding: ' + self.encoding))
print(retval)
def wheelEvent(self, event):
self.font_size += event.angleDelta().y() / 280
self.changeFontSize(self.font_size)
# Handling close event
def closeEvent(self, event):
print("User has clicked the red x on the main window")
if self._editBox.toPlainText() == '':
retval = self.closing_with_text.exec_()
if retval == QMessageBox.Ok:
print('Ok pressed')
event.accept()
else:
print('Cancel pressed')
event.ignore()
