def load_interval_combo_boxes(config_obj):
"""
This function currently only handles combo boxes for backtester/optimizer interval logic. It'll update the
strategy interval combo-box depending on what the data interval combo-box has as its current value.
:param config_obj: Configuration QDialog object (from configuration.py)
"""
intervals = helpers.get_interval_strings(startingIndex=0)
config_obj.intervalComboBox.addItems(intervals)
config_obj.simulationIntervalComboBox.addItems(intervals)
config_obj.backtestStrategyIntervalCombobox.addItems(intervals)
config_obj.backtestIntervalComboBox.addItems(intervals)
config_obj.backtestIntervalComboBox.currentTextChanged.connect(lambda: reset_strategy_interval_comboBox(
strategy_combobox=config_obj.backtestStrategyIntervalCombobox,
interval_combobox=config_obj.backtestIntervalComboBox
))
config_obj.optimizerStrategyIntervalCombobox.addItems(intervals)
config_obj.optimizerIntervalComboBox.addItems(intervals)
config_obj.optimizerStrategyIntervalEndCombobox.addItems(intervals)
config_obj.optimizerIntervalComboBox.currentTextChanged.connect(lambda: reset_strategy_interval_comboBox(
strategy_combobox=config_obj.optimizerStrategyIntervalCombobox,
interval_combobox=config_obj.optimizerIntervalComboBox
))
config_obj.optimizerStrategyIntervalCombobox.currentTextChanged.connect(lambda: reset_strategy_interval_comboBox(
strategy_combobox=config_obj.optimizerStrategyIntervalEndCombobox,
interval_combobox=config_obj.optimizerStrategyIntervalCombobox,
start_index=config_obj.optimizerIntervalComboBox.currentIndex(),
divisor=helpers.get_interval_minutes(config_obj.optimizerIntervalComboBox.currentText())
))
def load_combo_boxes(self):
"""
This function currently only handles combo boxes for backtester interval logic. It'll update the strategy
interval combo-box depending on what the data interval combo-box has as its current value.
"""
intervals = helpers.get_interval_strings(startingIndex=0)
self.backtestIntervalComboBox.addItems(intervals)
self.backtestIntervalComboBox.currentTextChanged.connect(self.reset_strategy_interval_comboBox)
self.backtestStrategyIntervalCombobox.addItems(intervals)
def reset_strategy_interval_comboBox(self):
"""
This function will reset the strategy interval combo-box.
"""
childText = self.backtestStrategyIntervalCombobox.currentText()
parentIndex = self.backtestIntervalComboBox.currentIndex()
intervals = helpers.get_interval_strings(startingIndex=parentIndex)
self.backtestStrategyIntervalCombobox.clear()
self.backtestStrategyIntervalCombobox.addItems(intervals)
previousChildIndex = self.backtestStrategyIntervalCombobox.findText(childText)
if previousChildIndex != -1:
self.backtestStrategyIntervalCombobox.setCurrentIndex(previousChildIndex)
def reset_strategy_interval_comboBox(strategy_combobox: QComboBox, interval_combobox: QComboBox):
"""
This function will reset the strategy combobox based on what interval is picked in the interval combobox.
"""
childText = strategy_combobox.currentText()
parentIndex = interval_combobox.currentIndex()
intervals = helpers.get_interval_strings(startingIndex=parentIndex)
strategy_combobox.clear()
strategy_combobox.addItems(intervals)
previousChildIndex = strategy_combobox.findText(childText)
if previousChildIndex != -1:
strategy_combobox.setCurrentIndex(previousChildIndex)
def reset_strategy_interval_comboBox(strategy_combobox: QComboBox,
interval_combobox: QComboBox,
start_index: int = 0,
filter_intervals: bool = True,
divisor: int = None):
"""
This function will reset the strategy combobox based on what interval is picked in the interval combobox.
:param strategy_combobox: Combobox to modify based on the interval combobox.
:param interval_combobox: Interval combobox that will trigger this function.
:param start_index: Optional start index to start from when getting interval strings.
:param filter_intervals: Boolean on whether to filter tickers or not.
:param divisor: Divisor to use for filtering intervals. If none is provided, it will use data interval minutes.
"""
dataInterval = interval_combobox.currentText()
if not dataInterval:
return # Means text is empty, so just return.
dataIntervalMinutes = get_interval_minutes(dataInterval)
dataIndex = interval_combobox.currentIndex()
strategyInterval = strategy_combobox.currentText()
intervals = get_interval_strings(startingIndex=start_index + dataIndex)
if filter_intervals:
divisor = divisor if divisor is not None else dataIntervalMinutes
intervals = [
interval for interval in intervals
if get_interval_minutes(interval) % divisor == 0
]
strategy_combobox.clear()
strategy_combobox.addItems(intervals)
previousStrategyIntervalIndex = strategy_combobox.findText(
strategyInterval)
if previousStrategyIntervalIndex != -1:
strategy_combobox.setCurrentIndex(previousStrategyIntervalIndex)
