class MainWindow(QMainWindow):
def __init__(self, *args, **kwargs):
super(MainWindow, self).__init__(*args, **kwargs)
layout = QVBoxLayout()
self.editor = QPlainTextEdit(
) # Could also use a QTextEdit and set self.editor.setAcceptRichText(False)
# Setup the QTextEdit editor configuration
fixedfont = QFontDatabase.systemFont(QFontDatabase.FixedFont)
fixedfont.setPointSize(12)
self.editor.setFont(fixedfont)
# self.path holds the path of the currently open file.
# If none, we haven't got a file open yet (or creating new).
self.path = None
layout.addWidget(self.editor)
container = QWidget()
container.setLayout(layout)
self.setCentralWidget(container)
self.status = QStatusBar()
self.setStatusBar(self.status)
file_toolbar = QToolBar("File")
file_toolbar.setIconSize(QSize(14, 14))
self.addToolBar(file_toolbar)
file_menu = self.menuBar().addMenu("&File")
open_file_action = QAction(
QIcon(os.path.join('images', 'blue-folder-open-document.png')),
"Open file...", self)
open_file_action.setStatusTip("Open file")
open_file_action.triggered.connect(self.file_open)
file_menu.addAction(open_file_action)
file_toolbar.addAction(open_file_action)
save_file_action = QAction(QIcon(os.path.join('images', 'disk.png')),
"Save", self)
save_file_action.setStatusTip("Save current page")
save_file_action.triggered.connect(self.file_save)
file_menu.addAction(save_file_action)
file_toolbar.addAction(save_file_action)
saveas_file_action = QAction(
QIcon(os.path.join('images', 'disk--pencil.png')), "Save As...",
self)
saveas_file_action.setStatusTip("Save current page to specified file")
saveas_file_action.triggered.connect(self.file_saveas)
file_menu.addAction(saveas_file_action)
file_toolbar.addAction(saveas_file_action)
print_action = QAction(QIcon(os.path.join('images', 'printer.png')),
"Print...", self)
print_action.setStatusTip("Print current page")
print_action.triggered.connect(self.file_print)
file_menu.addAction(print_action)
file_toolbar.addAction(print_action)
edit_toolbar = QToolBar("Edit")
edit_toolbar.setIconSize(QSize(16, 16))
self.addToolBar(edit_toolbar)
edit_menu = self.menuBar().addMenu("&Edit")
undo_action = QAction(
QIcon(os.path.join('images', 'arrow-curve-180-left.png')), "Undo",
self)
undo_action.setStatusTip("Undo last change")
undo_action.triggered.connect(self.editor.undo)
edit_menu.addAction(undo_action)
redo_action = QAction(QIcon(os.path.join('images', 'arrow-curve.png')),
"Redo", self)
redo_action.setStatusTip("Redo last change")
redo_action.triggered.connect(self.editor.redo)
edit_toolbar.addAction(redo_action)
edit_menu.addAction(redo_action)
edit_menu.addSeparator()
cut_action = QAction(QIcon(os.path.join('images', 'scissors.png')),
"Cut", self)
cut_action.setStatusTip("Cut selected text")
cut_action.triggered.connect(self.editor.cut)
edit_toolbar.addAction(cut_action)
edit_menu.addAction(cut_action)
copy_action = QAction(
QIcon(os.path.join('images', 'document-copy.png')), "Copy", self)
copy_action.setStatusTip("Copy selected text")
copy_action.triggered.connect(self.editor.copy)
edit_toolbar.addAction(copy_action)
edit_menu.addAction(copy_action)
paste_action = QAction(
QIcon(os.path.join('images', 'clipboard-paste-document-text.png')),
"Paste", self)
paste_action.setStatusTip("Paste from clipboard")
paste_action.triggered.connect(self.editor.paste)
edit_toolbar.addAction(paste_action)
edit_menu.addAction(paste_action)
select_action = QAction(
QIcon(os.path.join('images', 'selection-input.png')), "Select all",
self)
select_action.setStatusTip("Select all text")
select_action.triggered.connect(self.editor.selectAll)
edit_menu.addAction(select_action)
edit_menu.addSeparator()
wrap_action = QAction(
QIcon(os.path.join('images', 'arrow-continue.png')),
"Wrap text to window", self)
wrap_action.setStatusTip("Toggle wrap text to window")
wrap_action.setCheckable(True)
wrap_action.setChecked(True)
wrap_action.triggered.connect(self.edit_toggle_wrap)
edit_menu.addAction(wrap_action)
self.update_title()
self.show()
def dialog_critical(self, s):
dlg = QMessageBox(self)
dlg.setText(s)
dlg.setIcon(QMessageBox.Critical)
dlg.show()
def file_open(self):
path, _ = QFileDialog.getOpenFileName(
self, "Open file", "", "Text documents (*.txt);All files (*.*)")
if path:
try:
with open(path, 'rU') as f:
text = f.read()
except Exception as e:
self.dialog_critical(str(e))
else:
self.path = path
self.editor.setPlainText(text)
self.update_title()
def file_save(self):
if self.path is None:
# If we do not have a path, we need to use Save As.
return self.file_saveas()
self._save_to_path(self.path)
def file_saveas(self):
path, _ = QFileDialog.getSaveFileName(
self, "Save file", "", "Text documents (*.txt);All files (*.*)")
if not path:
# If dialog is cancelled, will return ''
return
self._save_to_path(path)
def _save_to_path(self, path):
text = self.editor.toPlainText()
try:
with open(path, 'w') as f:
f.write(text)
except Exception as e:
self.dialog_critical(str(e))
else:
self.path = path
self.update_title()
def file_print(self):
dlg = QPrintDialog()
if dlg.exec_():
self.editor.print_(dlg.printer())
def update_title(self):
self.setWindowTitle(
"%s - No2Pads" %
(os.path.basename(self.path) if self.path else "Untitled"))
def edit_toggle_wrap(self):
self.editor.setLineWrapMode(1 if self.editor.lineWrapMode() ==
0 else 0)
class Notepad(QMainWindow):
def __init__(self, *args, **kwargs):
super(Notepad, self).__init__(*args, **kwargs)
self.setWindowIcon(QIcon('arti.PNG'))
self.setGeometry(200, 100, 700, 400)
layout = QVBoxLayout()
self.editor = QPlainTextEdit()
self.editor.setFont(QFont('Roboto', 12))
# self.path holds the path of the currently open file.
# If none, we haven't got a file open yet (or creating new).
self.path = None
layout.addWidget(self.editor)
container = QWidget()
container.setLayout(layout)
self.setCentralWidget(container)
self.status = QStatusBar()
self.setStatusBar(self.status)
file_toolbar = QToolBar("File")
file_toolbar.setIconSize(QSize(14, 14))
self.addToolBar(file_toolbar)
file_menu = self.menuBar().addMenu("&File")
open_file_action = QAction(QIcon(), "Open file...", self)
open_file_action.setStatusTip("Open file")
open_file_action.triggered.connect(self.file_open)
file_menu.addAction(open_file_action)
file_toolbar.addAction(open_file_action)
open_file_action.setShortcut(QKeySequence('Ctrl+O'))
save_file_action = QAction(QIcon(), "Save", self)
save_file_action.setStatusTip("Save current page")
save_file_action.triggered.connect(self.file_save)
file_menu.addAction(save_file_action)
file_toolbar.addAction(save_file_action)
save_file_action.setShortcut(QKeySequence('Ctrl+S'))
saveas_file_action = QAction(QIcon(), "Save As...", self)
saveas_file_action.setStatusTip("Save current page to specified file")
saveas_file_action.triggered.connect(self.file_saveas)
file_menu.addAction(saveas_file_action)
file_toolbar.addAction(saveas_file_action)
saveas_file_action.setShortcut(QKeySequence('Ctrl+Shift+S'))
print_action = QAction(QIcon(), "Print...", self)
print_action.setStatusTip("Print current page")
print_action.triggered.connect(self.file_print)
file_menu.addAction(print_action)
file_toolbar.addAction(print_action)
print_action.setShortcut(QKeySequence('Ctrl+P'))
edit_toolbar = QToolBar("Edit")
edit_toolbar.setIconSize(QSize(16, 16))
self.addToolBar(edit_toolbar)
edit_menu = self.menuBar().addMenu("&Edit")
undo_action = QAction(QIcon(), "Undo", self)
undo_action.setStatusTip("Undo last change")
undo_action.triggered.connect(self.editor.undo)
edit_menu.addAction(undo_action)
undo_action.setShortcut(QKeySequence('Ctrl+Z'))
redo_action = QAction(QIcon(), "Redo", self)
redo_action.setStatusTip("Redo last change")
redo_action.triggered.connect(self.editor.redo)
edit_toolbar.addAction(redo_action)
edit_menu.addAction(redo_action)
redo_action.setShortcut(QKeySequence('Ctrl+Y'))
edit_menu.addSeparator()
cut_action = QAction(QIcon(), "Cut", self)
cut_action.setStatusTip("Cut selected text")
cut_action.triggered.connect(self.editor.cut)
edit_toolbar.addAction(cut_action)
edit_menu.addAction(cut_action)
cut_action.setShortcut(QKeySequence('Ctrl+X'))
copy_action = QAction(QIcon(), "Copy", self)
copy_action.setStatusTip("Copy selected text")
copy_action.triggered.connect(self.editor.copy)
edit_toolbar.addAction(copy_action)
edit_menu.addAction(copy_action)
copy_action.setShortcut(QKeySequence('Ctrl+C'))
paste_action = QAction(QIcon(), "Paste", self)
paste_action.setStatusTip("Paste from clipboard")
paste_action.triggered.connect(self.editor.paste)
edit_toolbar.addAction(paste_action)
edit_menu.addAction(paste_action)
paste_action.setShortcut(QKeySequence('Ctrl+V'))
select_action = QAction(QIcon(), "Select all", self)
select_action.setStatusTip("Select all text")
select_action.triggered.connect(self.editor.selectAll)
edit_menu.addAction(select_action)
select_action.setShortcut(QKeySequence('Ctrl+A'))
edit_menu.addSeparator()
wrap_action = QAction(QIcon(), "Wrap text to window", self)
wrap_action.setStatusTip("Toggle wrap text to window")
wrap_action.setCheckable(True)
wrap_action.setChecked(True)
wrap_action.triggered.connect(self.edit_toggle_wrap)
edit_menu.addAction(wrap_action)
self.update_title()
self.show()
def dialog_critical(self, s):
dlg = QMessageBox(self)
dlg.setText(s)
dlg.setIcon(QMessageBox.Critical)
dlg.show()
def file_open(self):
path, _ = QFileDialog.getOpenFileName(self, "Open file", "", "Text documents (*.txt)")
if path:
try:
with open(path, 'rU') as f:
text = f.read()
except Exception as e:
self.dialog_critical(str(e))
else:
self.path = path
self.editor.setPlainText(text)
self.update_title()
def file_save(self):
if self.path is None:
return self.file_saveas()
self._save_to_path(self.path)
def file_saveas(self):
path, _ = QFileDialog.getSaveFileName(self, "Save file", "", "Text documents (*.txt)")
if not path:
return
self._save_to_path(path)
def _save_to_path(self, path):
text = self.editor.toPlainText()
try:
with open(path, 'w') as f:
f.write(text)
except Exception as e:
self.dialog_critical(str(e))
else:
self.path = path
self.update_title()
def file_print(self):
dlg = QPrintDialog()
if dlg.exec_():
self.editor.print_(dlg.printer())
def update_title(self):
self.setWindowTitle("%s - Notepad" % (os.path.basename(self.path) if self.path else "Untitled"))
def edit_toggle_wrap(self):
self.editor.setLineWrapMode(1 if self.editor.lineWrapMode() == 0 else 0)
