class SliderWidget(HLayoutMixin, LineEditWidget):
"""
NumericTypeItem with Slider
"""
def __init__(self, item, parent_layout):
super(SliderWidget, self).__init__(item, parent_layout)
if item.get_prop_value("display", "slider"):
self.slider = QSlider()
self.slider.setOrientation(Qt.Horizontal)
vmin = item.get_prop_value("data", "min")
vmax = item.get_prop_value("data", "max")
vstep = item.get_prop_value("data", "step", 1)
assert vmin is not None and vmax is not None, "SliderWidget requires that NumericTypeItem min/max have been defined"
self.slider.setRange(0, int((vmax - vmin) / vstep))
self.convert_value = lambda v: v * vstep + vmin
self.slider.valueChanged.connect(self.value_changed)
self.group.addWidget(self.slider)
else:
self.slider = None
def update(self, value):
"""Reimplement LineEditWidget method"""
LineEditWidget.update(self, value)
if self.slider is not None and isinstance(value, int):
self.slider.blockSignals(True)
self.slider.setValue(int(value))
self.slider.blockSignals(False)
def value_changed(self, ivalue):
"""Update the lineedit"""
value = str(self.convert_value(ivalue))
self.edit.setText(value)
self.update(value)
class SliderWidget(HLayoutMixin, LineEditWidget):
"""
NumericTypeItem with Slider
"""
def __init__(self, item, parent_layout):
super(SliderWidget, self).__init__(item, parent_layout)
if item.get_prop_value("display", "slider"):
self.slider = QSlider()
self.slider.setOrientation(Qt.Horizontal)
vmin = item.get_prop_value("data", "min")
vmax = item.get_prop_value("data", "max")
vstep = item.get_prop_value("data", "step", 1)
assert vmin is not None and vmax is not None, "SliderWidget requires that NumericTypeItem min/max have been defined"
self.slider.setRange(0, int((vmax-vmin)/vstep))
self.convert_value = lambda v: v*vstep + vmin
self.slider.valueChanged.connect(self.value_changed)
self.group.addWidget(self.slider)
else:
self.slider = None
def update(self, value):
"""Reimplement LineEditWidget method"""
LineEditWidget.update(self, value)
if self.slider is not None and isinstance(value, int):
self.slider.blockSignals(True)
self.slider.setValue(int(value))
self.slider.blockSignals(False)
def value_changed(self, ivalue):
"""Update the lineedit"""
value = str(self.convert_value(ivalue))
self.edit.setText(value)
self.update(value)
class SliderWidget(HLayoutMixin, LineEditWidget):
"""
IntItem with Slider
"""
DATA_TYPE = int
def __init__(self, item, parent_layout):
super(SliderWidget, self).__init__(item, parent_layout)
self.slider = self.vmin = self.vmax = None
if item.get_prop_value("display", "slider"):
self.vmin = item.get_prop_value("data", "min")
self.vmax = item.get_prop_value("data", "max")
assert self.vmin is not None and self.vmax is not None, \
"SliderWidget requires that item min/max have been defined"
self.slider = QSlider()
self.slider.setOrientation(Qt.Horizontal)
self.setup_slider(item)
self.slider.valueChanged.connect(self.value_changed)
self.group.addWidget(self.slider)
def value_to_slider(self, value):
return value
def slider_to_value(self, value):
return value
def setup_slider(self, item):
self.slider.setRange(self.vmin, self.vmax)
def update(self, value):
"""Reimplement LineEditWidget method"""
LineEditWidget.update(self, value)
if self.slider is not None and isinstance(value, self.DATA_TYPE):
self.slider.blockSignals(True)
self.slider.setValue(self.value_to_slider(value))
self.slider.blockSignals(False)
def value_changed(self, ivalue):
"""Update the lineedit"""
value = str(self.slider_to_value(ivalue))
self.edit.setText(value)
self.update(value)
class FitParam(object):
def __init__(self, name, value, min, max, logscale=False,
steps=5000, format='%.3f', size_offset=0, unit=''):
self.name = name
self.value = value
self.min = min
self.max = max
self.logscale = logscale
self.steps = steps
self.format = format
self.unit = unit
self.prefix_label = None
self.lineedit = None
self.unit_label = None
self.slider = None
self.button = None
self._widgets = []
self._size_offset = size_offset
self._refresh_callback = None
self.dataset = FitParamDataSet(title=_("Curve fitting parameter"))
def copy(self):
"""Return a copy of this fitparam"""
return self.__class__(self.name, self.value, self.min, self.max,
self.logscale, self.steps, self.format,
self._size_offset, self.unit)
def create_widgets(self, parent, refresh_callback):
self._refresh_callback = refresh_callback
self.prefix_label = QLabel()
font = self.prefix_label.font()
font.setPointSize(font.pointSize()+self._size_offset)
self.prefix_label.setFont(font)
self.button = QPushButton()
self.button.setIcon(get_icon('settings.png'))
self.button.setToolTip(
_("Edit '%s' fit parameter properties") % self.name)
self.button.clicked.connect(lambda: self.edit_param(parent))
self.lineedit = QLineEdit()
self.lineedit.editingFinished.connect(self.line_editing_finished)
self.unit_label = QLabel(self.unit)
self.slider = QSlider()
self.slider.setOrientation(Qt.Horizontal)
self.slider.setRange(0, self.steps-1)
self.slider.valueChanged.connect(self.slider_value_changed)
self.update(refresh=False)
self.add_widgets([self.prefix_label, self.lineedit, self.unit_label,
self.slider, self.button])
def add_widgets(self, widgets):
self._widgets += widgets
def get_widgets(self):
return self._widgets
def set_scale(self, state):
self.logscale = state > 0
self.update_slider_value()
def set_text(self, fmt=None):
style = "<span style=\'color: #444444\'><b>%s</b></span>"
self.prefix_label.setText(style % self.name)
if self.value is None:
value_str = ''
else:
if fmt is None:
fmt = self.format
value_str = fmt % self.value
self.lineedit.setText(value_str)
self.lineedit.setDisabled(
self.value == self.min and self.max == self.min)
def line_editing_finished(self):
try:
self.value = float(self.lineedit.text())
except ValueError:
self.set_text()
self.update_slider_value()
self._refresh_callback()
def slider_value_changed(self, int_value):
if self.logscale:
total_delta = np.log10(1+self.max-self.min)
self.value = self.min+10**(total_delta*int_value/(self.steps-1))-1
else:
total_delta = self.max-self.min
self.value = self.min+total_delta*int_value/(self.steps-1)
self.set_text()
self._refresh_callback()
def update_slider_value(self):
if (self.value is None or self.min is None or self.max is None):
self.slider.setEnabled(False)
if self.slider.parent() and self.slider.parent().isVisible():
self.slider.show()
elif self.value == self.min and self.max == self.min:
self.slider.hide()
else:
self.slider.setEnabled(True)
if self.slider.parent() and self.slider.parent().isVisible():
self.slider.show()
if self.logscale:
value_delta = max([np.log10(1+self.value-self.min), 0.])
total_delta = np.log10(1+self.max-self.min)
else:
value_delta = self.value-self.min
total_delta = self.max-self.min
intval = int(self.steps*value_delta/total_delta)
self.slider.blockSignals(True)
self.slider.setValue(intval)
self.slider.blockSignals(False)
def edit_param(self, parent):
update_dataset(self.dataset, self)
if self.dataset.edit(parent=parent):
restore_dataset(self.dataset, self)
if self.value > self.max:
self.max = self.value
if self.value < self.min:
self.min = self.value
self.update()
def update(self, refresh=True):
self.unit_label.setText(self.unit)
self.slider.setRange(0, self.steps-1)
self.update_slider_value()
self.set_text()
if refresh:
self._refresh_callback()
class FitParam(object):
def __init__(self,
name,
value,
min,
max,
logscale=False,
steps=5000,
format='%.3f',
size_offset=0,
unit=''):
self.name = name
self.value = value
self.min = min
self.max = max
self.logscale = logscale
self.steps = steps
self.format = format
self.unit = unit
self.prefix_label = None
self.lineedit = None
self.unit_label = None
self.slider = None
self.button = None
self._widgets = []
self._size_offset = size_offset
self._refresh_callback = None
self.dataset = FitParamDataSet(title=_("Curve fitting parameter"))
def copy(self):
"""Return a copy of this fitparam"""
return self.__class__(self.name, self.value, self.min, self.max,
self.logscale, self.steps, self.format,
self._size_offset, self.unit)
def create_widgets(self, parent, refresh_callback):
self._refresh_callback = refresh_callback
self.prefix_label = QLabel()
font = self.prefix_label.font()
font.setPointSize(font.pointSize() + self._size_offset)
self.prefix_label.setFont(font)
self.button = QPushButton()
self.button.setIcon(get_icon('settings.png'))
self.button.setToolTip(
_("Edit '%s' fit parameter properties") % self.name)
self.button.clicked.connect(lambda: self.edit_param(parent))
self.lineedit = QLineEdit()
self.lineedit.editingFinished.connect(self.line_editing_finished)
self.unit_label = QLabel(self.unit)
self.slider = QSlider()
self.slider.setOrientation(Qt.Horizontal)
self.slider.setRange(0, self.steps - 1)
self.slider.valueChanged.connect(self.slider_value_changed)
self.update(refresh=False)
self.add_widgets([
self.prefix_label, self.lineedit, self.unit_label, self.slider,
self.button
])
def add_widgets(self, widgets):
self._widgets += widgets
def get_widgets(self):
return self._widgets
def set_scale(self, state):
self.logscale = state > 0
self.update_slider_value()
def set_text(self, fmt=None):
style = "<span style=\'color: #444444\'><b>%s</b></span>"
self.prefix_label.setText(style % self.name)
if self.value is None:
value_str = ''
else:
if fmt is None:
fmt = self.format
value_str = fmt % self.value
self.lineedit.setText(value_str)
self.lineedit.setDisabled(self.value == self.min
and self.max == self.min)
def line_editing_finished(self):
try:
self.value = float(self.lineedit.text())
except ValueError:
self.set_text()
self.update_slider_value()
self._refresh_callback()
def slider_value_changed(self, int_value):
if self.logscale:
total_delta = np.log10(1 + self.max - self.min)
self.value = self.min + 10**(total_delta * int_value /
(self.steps - 1)) - 1
else:
total_delta = self.max - self.min
self.value = self.min + total_delta * int_value / (self.steps - 1)
self.set_text()
self._refresh_callback()
def update_slider_value(self):
if (self.value is None or self.min is None or self.max is None):
self.slider.setEnabled(False)
if self.slider.parent() and self.slider.parent().isVisible():
self.slider.show()
elif self.value == self.min and self.max == self.min:
self.slider.hide()
else:
self.slider.setEnabled(True)
if self.slider.parent() and self.slider.parent().isVisible():
self.slider.show()
if self.logscale:
value_delta = max([np.log10(1 + self.value - self.min), 0.])
total_delta = np.log10(1 + self.max - self.min)
else:
value_delta = self.value - self.min
total_delta = self.max - self.min
intval = int(self.steps * value_delta / total_delta)
self.slider.blockSignals(True)
self.slider.setValue(intval)
self.slider.blockSignals(False)
def edit_param(self, parent):
update_dataset(self.dataset, self)
if self.dataset.edit(parent=parent):
restore_dataset(self.dataset, self)
if self.value > self.max:
self.max = self.value
if self.value < self.min:
self.min = self.value
self.update()
def update(self, refresh=True):
self.unit_label.setText(self.unit)
self.slider.setRange(0, self.steps - 1)
self.update_slider_value()
self.set_text()
if refresh:
self._refresh_callback()
