def create_context_menu(self):
menu = QMenu()
menu.setToolTipsVisible(True)
self._add_zoom_actions_to_menu(menu)
if self.something_is_selected:
filter_bw = Filter.read_configured_filter_bw()
text = self.tr("Apply bandpass filter (filter bw={0:n})".format(filter_bw))
create_from_frequency_selection = menu.addAction(text)
create_from_frequency_selection.triggered.connect(self.on_create_from_frequency_selection_triggered)
create_from_frequency_selection.setIcon(QIcon.fromTheme("view-filter"))
try:
cancel_button = " or ".join(k.toString() for k in QKeySequence.keyBindings(QKeySequence.Cancel))
except Exception as e:
logger.debug("Error reading cancel button: " + str(e))
cancel_button = "Esc"
create_from_frequency_selection.setToolTip("You can abort filtering with <b>{}</b>.".format(cancel_button))
configure_filter_bw = menu.addAction(self.tr("Configure filter bandwidth..."))
configure_filter_bw.triggered.connect(self.on_configure_filter_bw_triggered)
configure_filter_bw.setIcon(QIcon.fromTheme("configure"))
menu.addSeparator()
export_fta_action = menu.addAction("Export spectrogram...")
export_fta_action.triggered.connect(self.on_export_fta_action_triggered)
return menu
def create_context_menu(self):
menu = QMenu()
menu.setToolTipsVisible(True)
self._add_zoom_actions_to_menu(menu)
if self.something_is_selected:
filter_bw = Filter.read_configured_filter_bw()
text = self.tr(
"Apply bandpass filter (filter bw={0:n})".format(filter_bw))
create_from_frequency_selection = menu.addAction(text)
create_from_frequency_selection.triggered.connect(
self.on_create_from_frequency_selection_triggered)
create_from_frequency_selection.setIcon(
QIcon.fromTheme("view-filter"))
try:
cancel_button = " or ".join(
k.toString()
for k in QKeySequence.keyBindings(QKeySequence.Cancel))
except Exception as e:
logger.debug("Error reading cancel button: " + str(e))
cancel_button = "Esc"
create_from_frequency_selection.setToolTip(
"You can abort filtering with <b>{}</b>.".format(
cancel_button))
configure_filter_bw = menu.addAction(
self.tr("Configure filter bandwidth..."))
configure_filter_bw.triggered.connect(
self.on_configure_filter_bw_triggered)
configure_filter_bw.setIcon(QIcon.fromTheme("configure"))
return menu
def bind_all_standard_keys(standard_key,
handler_cb,
parent=None,
context=Qt.WindowShortcut):
"""Workaround for Qt apparently only binding the first StandardKey
when it's fed into QShortcut
@type standard_key: C{QtGui.QKeySequence.StandardKey}
@type handler_cb: C{function}
@type parent: C{QObject}
@type context: C{QtCore.Qt.ShortcutContext}
@rtype: C{[QtWidgets.QShortcut]}
"""
results = []
if isinstance(standard_key, QKeySequence.StandardKey):
hotkeys = QKeySequence.keyBindings(standard_key)
else:
hotkeys = [standard_key]
for hotkey in hotkeys:
shortcut = QShortcut(hotkey, parent)
shortcut.setContext(context)
shortcut.activated.connect(handler_cb)
results.append(shortcut)
return results
def createToolBar(self) -> QToolBar:
navigationBar = QToolBar(self.tr("Navigation"))
navigationBar.setAllowedAreas(Qt.TopToolBarArea | Qt.BottomToolBarArea)
navigationBar.toggleViewAction().setEnabled(False)
self.m_historyBackAction = QAction(self)
backShortcuts = QKeySequence.keyBindings(QKeySequence.Back)
for i, x in enumerate(reversed(backShortcuts)):
if x[0] == Qt.Key_Backspace:
# Chromium already handles navigate on backspace when appropriate.
backShortcuts.pop(i)
# For some reason Qt doesn't bind the dedicated Back key to Back.
backShortcuts.append(QKeySequence(Qt.Key_Back))
self.m_historyBackAction.setShortcuts(backShortcuts)
self.m_historyBackAction.setIconVisibleInMenu(False)
self.m_historyBackAction.setIcon(QIcon(":go-previous.png"))
self.m_historyBackAction.triggered.connect(
lambda: self.m_tabWidget.triggerWebPageAction(QWebEnginePage.Back))
navigationBar.addAction(self.m_historyBackAction)
self.m_historyForwardAction = QAction(self)
fwdShortcuts = QKeySequence.keyBindings(QKeySequence.Forward)
for i, x in enumerate(reversed(fwdShortcuts)):
if x[0] & Qt.Key_unknown == Qt.Key_Backspace:
fwdShortcuts.pop(i)
fwdShortcuts.append(QKeySequence(Qt.Key_Forward))
self.m_historyForwardAction.setShortcuts(fwdShortcuts)
self.m_historyForwardAction.setIconVisibleInMenu(False)
self.m_historyForwardAction.setIcon(QIcon(":go-next.png"))
self.m_historyForwardAction.triggered.connect(
lambda: self.m_tabWidget.triggerWebPageAction(QWebEnginePage.
Forward))
navigationBar.addAction(self.m_historyForwardAction)
self.m_stopReloadAction = QAction(self)
self.m_stopReloadAction.triggered.connect(
lambda: self.m_tabWidget.triggerWebPageAction(
QWebEnginePage.WebAction(self.m_stopReloadAction.data())))
navigationBar.addAction(self.m_stopReloadAction)
navigationBar.addWidget(self.m_urlLineEdit)
size = self.m_urlLineEdit.sizeHint().height()
navigationBar.setIconSize(QSize(size, size))
return navigationBar
def initUI(self):
# добавление меню бара
menubar = self.menuBar()
# добавление пунктов меню
fileMenu = menubar.addMenu('&File')
# значек & перед одной из букв в названии менюшки
# позволяет выбирать его по нажатии буквы на клавиатуре поле альта
# меню "открыть файл"
fileOpenAction = QAction('&Open file', self)
# сочетание клавиш для этого действия
# fileOpenAction.setShortcut(QKeySequence(self.tr('CTRL+F')))
fileOpenAction.setShortcuts(QKeySequence.keyBindings(
QKeySequence.Open))
# пояснение в строке состояния
fileOpenAction.setStatusTip('Открыть файл')
# присоединение действия к сигналу
fileOpenAction.triggered.connect(self.showOpenDialog)
# меню выход из программы
exitAction = QAction(QIcon('exit.png'), '&Exit', self)
exitAction.setShortcut(QKeySequence(self.tr('CTRL+Q')))
# Windows не имеет сочетания клавишь для выхода
# exitAction.setShortcuts(QKeySequence.keyBindings(QKeySequence.Quit))
exitAction.setStatusTip('Exit application')
exitAction.triggered.connect(qApp.quit)
# добавление в меню 'файл'
fileMenu.addAction(fileOpenAction)
fileMenu.addAction(exitAction)
self.statusBar()
self.setGeometry(300, 300, 300, 400)
self.setWindowTitle('BitCrusher')
self.intervalSpin_N = QSpinBox(self)
self.intervalSpin_N.setRange(1, 500)
self.intervalSpin_N.setMaximum(500)
self.intervalSpin_N.setValue(20)
self.intervalSpin_Fs = QSpinBox(self)
self.intervalSpin_Fs.setRange(1, 2000)
self.intervalSpin_Fs.setMaximum(2000)
self.intervalSpin_Fs.setValue(200)
self.intervalSpin_Fx = QSpinBox(self)
self.intervalSpin_Fx.setRange(1, 2000)
self.intervalSpin_Fx.setMaximum(2000)
self.intervalSpin_Fx.setValue(300)
self.textEdit = QTextEdit(self)
self.textEdit.setReadOnly(True)
# кнопка
self.resButton = QPushButton("Применить фильтр")
# кнопка
self.sinButton = QPushButton("Нужно больше (золота) наглядности")
def sinButtonCilcked():
# Порядок фильтра
N = self.intervalSpin_N.value()
Fs = self.intervalSpin_Fs.value()
Fx = self.intervalSpin_Fx.value()
self.textEdit.setText('True')
# main_sin(N, Fs, Fx)
def buttonCilcked():
if manager.get_current():
# Порядок фильтра
N = self.intervalSpin_N.value()
Fs = self.intervalSpin_Fs.value()
Fx = self.intervalSpin_Fx.value()
def myLogger(*args):
console = self.textEdit
for i in args:
console.append(str(i))
if manager.get_current() != "":
(data, nchannels, sampwidth, framerate, nframes,
comptype) = open_file(manager.get_current(), myLogger)
f_to_save_in_1 = self.showSaveDialog()
f_to_save_in_1 = f_to_save_in_1[
0][:-4] + "_writeframesraw_" + f_to_save_in_1[0][-4:]
f_to_save_in_1 = open(f_to_save_in_1, 'wb')
main(data, nchannels, sampwidth, framerate, comptype, N,
myLogger, f_to_save_in_1, Fs, Fx)
f_to_save_in_1.close()
self.resButton.clicked.connect(buttonCilcked)
self.sinButton.clicked.connect(sinButtonCilcked)
# вуктикальное расположение виджетов
vbox = QVBoxLayout()
wdg = QWidget()
self.setCentralWidget(wdg)
# добавляет строку с парой виджет виджет или строка виджет
form = QFormLayout()
form.addRow("Порядок фильтра", self.intervalSpin_N)
form.addRow("Частота полосы пропускания", self.intervalSpin_Fs)
form.addRow("Частота полосы затухания", self.intervalSpin_Fx)
# добавлять сюда
vbox.addLayout(form)
vbox.addWidget(self.textEdit)
vbox.addWidget(self.resButton)
vbox.addWidget(self.sinButton)
wdg.setLayout(vbox)
self.show()
def keybinding(attr):
"""Return keybinding"""
ks = getattr(QKeySequence, attr)
# return from_qvariant(QKeySequence.keyBindings(ks)[0], str)
return QKeySequence.keyBindings(ks)[0]
def keybinding(attr):
"""Return keybinding"""
ks = getattr(QKeySequence, attr)
return (QKeySequence.keyBindings(ks)[0], str)
