def __init__(self, axis_name, axis_domain, parent=None):
"""
Create an AxisSlicer widget with initial value set to axis_domain[0].
The created slicer is also registered in SliceEventDispatcher
to allow synchronization with slicers sharing the same axis name
Args:
- axis_name (str): label of the sliced axis
- axis_domain (np.array): 1D array of available domain values
"""
QtGui.QWidget.__init__(self, parent)
self.ui = Ui_AxisSlicer()
self.ui.setupUi(self)
self.ui.label_axis.setText(axis_name)
self.axis_name = axis_name
self.axis_domain = axis_domain
self.dvals_to_int = dict((dv,i) for (i,dv) in enumerate(axis_domain))
self.ui.slider.setMaximum(len(self.axis_domain)-1)
self.current_value = self.axis_domain[0]
self.ui.label_domain_value.setText(QtCore.QString(self.current_value))
self.ui.slider.valueChanged.connect(self.set_value_from_slider_pos)
self.ui.checkBox_current_axis.stateChanged.connect(self._set_axis_state)
SliceEventDispatcher().register_slicer(axis_name, self)
class AxisSlicer(QtGui.QWidget):
"""
Signals:
- slice_value_changed(str,str): if emission is enabled then this signal
is emitted when slider is moved
-> send (axis name, new domain value)
- axis_state_changed(str, bool): emitted when axis projection is toggled
-> send (axis name, true if projection is enabled)
Private signal:
- _slice_value_changed(str,str): same as slice_value_changed but ignore
emission state. Intended to be used by xndarrayBrowser
Slots:
- set_slice_value(aname str, dval): if reception is enabled and
aname is current axis and dval in current domain values
then set current domain value to the recieved domain value.
"""
slice_value_changed = QtCore.pyqtSignal(str, DomainValue,
name='SliceValueChanged')
_slice_value_changed = QtCore.pyqtSignal(str, DomainValue,
name='_SliceValueChanged')
axis_state_changed = QtCore.pyqtSignal(str, bool, name='AxisStateChanged')
def __init__(self, axis_name, axis_domain, parent=None):
"""
Create an AxisSlicer widget with initial value set to axis_domain[0].
The created slicer is also registered in SliceEventDispatcher
to allow synchronization with slicers sharing the same axis name
Args:
- axis_name (str): label of the sliced axis
- axis_domain (np.array): 1D array of available domain values
"""
QtGui.QWidget.__init__(self, parent)
self.ui = Ui_AxisSlicer()
self.ui.setupUi(self)
self.ui.label_axis.setText(axis_name)
self.axis_name = axis_name
self.axis_domain = axis_domain
self.dvals_to_int = dict((dv,i) for (i,dv) in enumerate(axis_domain))
self.ui.slider.setMaximum(len(self.axis_domain)-1)
self.current_value = self.axis_domain[0]
self.ui.label_domain_value.setText(QtCore.QString(self.current_value))
self.ui.slider.valueChanged.connect(self.set_value_from_slider_pos)
self.ui.checkBox_current_axis.stateChanged.connect(self._set_axis_state)
SliceEventDispatcher().register_slicer(axis_name, self)
@QtCore.pyqtSlot(bool)
def set_axis_state(self, state):
"""
Set the current axis state. If state is True then current axis is
projected, else the current axis is sliced.
Args:
- state (bool): the new state of the axis
"""
if state:
self.ui.label_domain_value.setText('<<projected>>')
self.ui.slider.setEnabled(False)
else:
self.ui.label_domain_value.setText(str(self.current_value))
self.ui.slider.setEnabled(True)
i = self.dvals_to_int[self.current_value]
self.ui.slider.setSliderPosition(i)
def set_axis_selection_checkbox_state(self, state):
self.ui.checkBox_current_axis.setChecked(state)
@QtCore.pyqtSlot(QtCore.Qt.CheckState)
def _set_axis_state(self, state):
self.set_axis_state(state==QtCore.Qt.Checked)
self.axis_state_changed.emit(self.axis_name, state)
@QtCore.pyqtSlot(int)
def set_value_from_slider_pos(self, index):
if self.current_value != self.axis_domain[index]:
self.current_value = self.axis_domain[index]
self.ui.label_domain_value.setText(str(self.current_value))
self._slice_value_changed.emit(self.axis_name, self.current_value)
if self.ui.checkBox_emit.isChecked():
self.slice_value_changed.emit(self.axis_name, self.current_value)
@QtCore.pyqtSlot(str, DomainValue)
def set_slice_value(self, aname, value):
if self.ui.checkBox_recieve.isChecked() and \
self.axis_name == aname and self.dvals_to_int.has_key(value):
try:
i = self.dvals_to_int[value]
except ValueError:
print 'could not find value %s in axis domain' %value
self.current_value = value
if not self.ui.checkBox_current_axis.isChecked():
self.ui.slider.setSliderPosition(i)
self.ui.label_domain_value.setText(str(value))
self._slice_value_changed.emit(self.axis_name,
self.current_value)
