from PySide import QtGui
from pypore.data_file_opener import prepare_data_file
from pypore.i_o import get_reader_from_filename
from pyporegui._thread_manager import _ThreadManager
from pyporegui.file_items import DataFileListItem, FileListItem
[docs]class BaseQSplitter(_ThreadManager, QtGui.QSplitter):
[docs] def __init__(self, parent):
super(BaseQSplitter, self).__init__(parent)
self.on_status_update_callback = None
self.process_events_callback = None
left_widget = self._create_left_widget(parent)
right_widget = self._create_right_widget(parent)
self.addWidget(left_widget)
self.addWidget(right_widget)
[docs] def set_process_events_callback(self, callback):
"""
Sets a callback for when the EventFindingTab requests app.processEvents
:param MethodType callback:
"""
self.process_events_callback = callback
def _dispatch_process_events(self):
"""
Calls the process_events_callback if it is not None.
"""
if self.process_events_callback is not None:
self.process_events_callback()
[docs] def set_on_status_update_callback(self, callback):
"""
Sets a callback for when the EventFinderTab's status is updated. The status is a String of information
about the current state of the EventFinderTab.
:param MethodType callback: Callback method for when the EventFinderTab's status is updated.
This callback must accept one string parameter.
"""
self.on_status_update_callback = callback
def _dispatch_status_update(self, text):
"""
Dispatches text to the on_status_update_callback if the on_status_update_callback is not None.
"""
if self.on_status_update_callback is not None:
self.on_status_update_callback(text)
[docs]class BaseQSplitterDataFile(BaseQSplitter):
[docs] def __init__(self, parent):
super(BaseQSplitterDataFile, self).__init__(parent)
[docs] def open_data_files(self, file_names=None):
"""
Analyzes the files for correctness, then adds them to the list widget.
:param ListType<StringType> file_names: The file names to be included in the list widget. If not included,
this function will use a QtGui.QFileDialog.getOpenFileNames to open
files.
:returns: BooleanType -- **True** if files were opened, **False** otherwise.
"""
if file_names is None:
file_names = QtGui.QFileDialog.getOpenFileNames(self,
'Open data file',
'.',
"All types(*.h5 *.hkd *.log *.mat);;"
"Pypore data files *.h5(*.h5);;"
"Heka files *.hkd(*.hkd);;"
"Chimera files *.log(*.log);;Gabys files *.mat(*.mat)")[0]
if len(file_names) > 0:
self.file_list_widget.clear()
else:
return
are_files_opened = False
open_dir = None
for w in file_names:
reader = get_reader_from_filename(w)
# if 'error' in params:
# TODO implement error handling in readers
# pass
# else:
reader.close()
are_files_opened = True
item = FileListItem(w)
open_dir = item.get_directory()
self.file_list_widget.addItem(item)
return are_files_opened
def _create_list_form(self):
self.file_list_widget = QtGui.QListWidget()
self.file_list_widget.setMaximumHeight(100)
self.file_list_widget.itemSelectionChanged.connect(self._on_file_item_selection_changed)
self.file_list_widget.itemDoubleClicked.connect(self._on_file_item_doubleclick)
self.file_list_widget.setMaximumHeight(100)
file_options = QtGui.QFormLayout()
file_options.addRow('Data Files:', self.file_list_widget)
return file_options
def _create_left_widget(self, parent=None):
return self._create_list_form()