def add_label(self, name, start, stop):
"""adds label to plot if possible. Returns the index of the new label in the sorted dataset"""
if self.lbl.maxshape != (None,): #if dataset is extensible
win = self.parentWidget().getViewWidget()
reply = QMessageBox.question(win,"", "Label cannot be added because dataset is not extensible. Replace with extensible dataset?", QMessageBox.No | QMessageBox.Yes, QMessageBox.No)
self.key = None #because keyReleaseEvent may be ignored during message box display
if reply == QMessageBox.Yes:
lbl = self.file[self.path]
self.lbl = replace_dataset(lbl, lbl.parent, data=lbl[:], maxshape=(None,))
else:
return
elif self.file.mode == 'r':
win = self.parentWidget().getViewWidget()
QMessageBox.critical(win,"", "Cannot add label. Make sure you have write permission for this file.", QMessageBox.Ok)
self.key = None
return
arf.append_data(self.lbl,(name,start,stop))
self.double_clicked = np.append(self.double_clicked,False)
sort_idx = self.sort_lbl()
new_idx = np.argmax(sort_idx==(len(self.lbl)-1))
self.plot_all_events()
return new_idx
def delete_selected_labels(self):
win = self.parentWidget().getViewWidget()
if self.file.mode == 'r':
QMessageBox.critical(win,"", "Cannot delete label. Make sure you have write permission for this file.", QMessageBox.Ok)
else:
reply = QMessageBox.question(win,"","Delete selected labels?",
QMessageBox.Yes | QMessageBox.No,
QMessageBox.No)
if reply == QMessageBox.Yes:
new_data = self.lbl[np.negative(self.double_clicked)]
lbl = self.file[self.path] #non-anonymous lbl entry
replace_dataset(lbl, lbl.parent, data=new_data, maxshape=(None,))
self.lbl = self.file[self.path]
self.double_clicked = np.zeros(len(self.lbl),dtype=bool)
self.plot_all_events()
self.sigNoLabelSelected.emit()