Source code for ccpn.ui.gui.popups.DeleteItems

Module Documentation here
# Licence, Reference and Credits
__copyright__ = "Copyright (C) CCPN project ( 2014 - 2022"
__credits__ = ("Ed Brooksbank, Joanna Fox, Victoria A Higman, Luca Mureddu, Eliza Płoskoń",
               "Timothy J Ragan, Brian O Smith, Gary S Thompson & Geerten W Vuister")
__licence__ = ("CCPN licence. See")
__reference__ = ("Skinner, S.P., Fogh, R.H., Boucher, W., Ragan, T.J., Mureddu, L.G., & Vuister, G.W.",
                 "CcpNmr AnalysisAssign: a flexible platform for integrated NMR analysis",
                 "J.Biomol.Nmr (2016), 66, 111-124,")
# Last code modification
__modifiedBy__ = "$modifiedBy: Ed Brooksbank $"
__dateModified__ = "$dateModified: 2022-03-28 12:04:06 +0100 (Mon, March 28, 2022) $"
__version__ = "$Revision: 3.1.0 $"
# Created
__author__ = "$Author: Ed Brooksbank$"
__date__ = "$Date: 9/05/2017 $"
# Start of code

from dataclasses import dataclass
from ccpn.ui.gui.widgets.Label import Label
from ccpn.ui.gui.widgets.CompoundWidgets import CheckBoxCompoundWidget
from ccpn.ui.gui.popups.Dialog import handleDialogApply, CcpnDialogMainWidget
from ccpn.ui.gui.lib.OpenGL.CcpnOpenGL import GLNotifier
from ccpn.core.lib.ContextManagers import undoStackBlocking

class _ItemState:
    """Small class to handle checkboxes
    itemName: str
    values: list
    checkBox: object

[docs]class DeleteItemsPopup(CcpnDialogMainWidget): """Open a small popup to allow deletion of selected 'current' items. Items is a tuple of tuples: indexed by the name of the items, containing a list of the items for deletion i.e. (('Peaks', peakList), ('Multiplets',multipletList)) """ def __init__(self, parent=None, mainWindow=None, title='Delete Items', items=None, **kwds): """Initialise the widget """ super().__init__(parent, setLayout=True, windowTitle=title, **kwds) self.mainWindow = mainWindow if mainWindow: self.application = mainWindow.application self.project = mainWindow.application.project self.current = mainWindow.application.current else: self.application = self.project = self.current = None self.deleteList = [] self._items = [] # initialise the content self._checkItems(items) self._setWidgets() self.setOkButton(callback=self._okClicked, tipText='Delete and close') self.setCloseButton(callback=self.reject, tipText='Close') self.GLSignals = GLNotifier(parent=self) # set the buttons and the size self.__postInit__() def _setWidgets(self): """Add widgets to the popup """ row = 0 self.noteLabel = Label(self.mainWidget, "Delete selected items: ", grid=(row, 0)) for item in self._items: itemName, values = item.itemName, item.values row += 1 # add a checkbox for each item newCheckBox = CheckBoxCompoundWidget(self.mainWidget, grid=(row, 0), vAlign='top', stretch=(0, 0), hAlign='left', orientation='right', # assume that the name is plural labelText='{} {}{}'.format(len(values), itemName.rstrip('s'), 's' if len(values) > 1 else ''), checked=True if itemName in ['peaks', 'Peaks'] else False ) newCheckBox.setToolTip('\n'.join(str( for obj in values)) # self.deleteList.append(_ItemState(itemName, values, newCheckBox)) item.checkBox = newCheckBox if len(self._items) == 1: # in the only item, so hide the checkboxes, rename the label self.noteLabel.setText(f'Do you want to delete {len(values)} {itemName.rstrip("s")}{"s" if len(values) > 1 else ""}?') newCheckBox.set(True) newCheckBox.setVisible(False) def _checkItems(self, items): """Check the items are valid """ if not isinstance(items, list): raise ValueError('items must be a list') for itm in items: if not isinstance(itm, (list, tuple)): raise ValueError('items must be a list of list or tuple pairs: (name, items)') name, values = itm if not isinstance(name, str): raise ValueError(f'item {name} must be a str') if not isinstance(values, (list, tuple)): raise ValueError('values must be a list of list or tuple pairs: (name, items)') # get the valid core objects objs = self.project.getByPids(values) self._items.append(_ItemState(name, objs, None)) def _refreshGLItems(self): # emit a signal to rebuild all peaks and multiplets self.GLSignals.emitEvent(triggers=[GLNotifier.GLALLPEAKS, GLNotifier.GLALLINTEGRALS, GLNotifier.GLALLMULTIPLETS]) def _okClicked(self): """ When ok button pressed: delete and exit """ with handleDialogApply(self): # add item here to redraw items with undoStackBlocking() as addUndoItem: addUndoItem(undo=self._refreshGLItems) # delete the checked items for delItem in self._items: if delItem.checkBox.isChecked(): self.project.deleteObjects(*delItem.values) # add item here to redraw items with undoStackBlocking() as addUndoItem: addUndoItem(redo=self._refreshGLItems) # redraw the items self._refreshGLItems() self.accept()