Source code for ccpn.ui.gui.widgets.Table


Basic Usage:
  define a list of Column(columnName, func, tipText=tipText) objects, 
  where func obtains the value for the object displayed in a row and
   tipText is optional;
  e.g. Column('index', lambda row: row.index, tipText='index of the row')
  define a list of objects (or empty):
  objectList = list(myObjects) if myObjects is not None else []
  define optional actionCallback and/or selectionCallback functions
  ObjectTable(parent=parent, columns=columnList, objects=objectList, 
              actionCallback=actionCallback, selectionCallback=selectionCallback,
  use setObjects(objects) method to set objects
  use show() to show
  use clearTable() to clear the table

Inherited from QTableView (

QTableView Class Reference
[QtGui module]
The QTableView class provides a default model/view implementation of a table view. More...
Inherits QAbstractItemView.
Inherited by QTableWidget.


    __init__ (self, QWidget parent = None)
    clearSpans (self)
    int columnAt (self, int x)
    columnCountChanged (self, int oldCount, int newCount)
    columnMoved (self, int column, int oldIndex, int newIndex)
    columnResized (self, int column, int oldWidth, int newWidth)
    int columnSpan (self, int row, int column)
    int columnViewportPosition (self, int column)
    int columnWidth (self, int column)
    currentChanged (self, QModelIndex current, QModelIndex previous)
    Qt.PenStyle gridStyle (self)
    hideColumn (self, int column)
    hideRow (self, int row)
    QHeaderView horizontalHeader (self)
    int horizontalOffset (self)
    horizontalScrollbarAction (self, int action)
    QModelIndex indexAt (self, QPoint p)
    bool isColumnHidden (self, int column)
    bool isCornerButtonEnabled (self)
    bool isIndexHidden (self, QModelIndex index)
    bool isRowHidden (self, int row)
    bool isSortingEnabled (self)
    QModelIndex moveCursor (self, QAbstractItemView.CursorAction cursorAction, Qt.KeyboardModifiers modifiers)
    paintEvent (self, QPaintEvent e)
    resizeColumnsToContents (self)
    resizeColumnToContents (self, int column)
    resizeRowsToContents (self)
    resizeRowToContents (self, int row)
    int rowAt (self, int y)
    rowCountChanged (self, int oldCount, int newCount)
    int rowHeight (self, int row)
    rowMoved (self, int row, int oldIndex, int newIndex)
    rowResized (self, int row, int oldHeight, int newHeight)
    int rowSpan (self, int row, int column)
    int rowViewportPosition (self, int row)
    scrollContentsBy (self, int dx, int dy)
    scrollTo (self, QModelIndex index, QAbstractItemView.ScrollHint hint = QAbstractItemView.EnsureVisible)
    selectColumn (self, int column)
    list-of-QModelIndex selectedIndexes (self)
    selectionChanged (self, QItemSelection selected, QItemSelection deselected)
    selectRow (self, int row)
    setColumnHidden (self, int column, bool hide)
    setColumnWidth (self, int column, int width)
    setCornerButtonEnabled (self, bool enable)
    setGridStyle (self, Qt.PenStyle style)
    setHorizontalHeader (self, QHeaderView header)
    setModel (self, QAbstractItemModel model)
    setRootIndex (self, QModelIndex index)
    setRowHeight (self, int row, int height)
    setRowHidden (self, int row, bool hide)
    setSelection (self, QRect rect, QItemSelectionModel.SelectionFlags command)
    setSelectionModel (self, QItemSelectionModel selectionModel)
    setShowGrid (self, bool show)
    setSortingEnabled (self, bool enable)
    setSpan (self, int row, int column, int rowSpan, int columnSpan)
    setVerticalHeader (self, QHeaderView header)
    setWordWrap (self, bool on)
    showColumn (self, int column)
    bool showGrid (self)
    showRow (self, int row)
    int sizeHintForColumn (self, int column)
    int sizeHintForRow (self, int row)
    sortByColumn (self, int column)
    sortByColumn (self, int column, Qt.SortOrder order)
    timerEvent (self, QTimerEvent event)
    updateGeometries (self)
    QHeaderView verticalHeader (self)
    int verticalOffset (self)
    verticalScrollbarAction (self, int action)
    QStyleOptionViewItem viewOptions (self)
    QRect visualRect (self, QModelIndex index)
    QRegion visualRegionForSelection (self, QItemSelection selection)
    bool wordWrap (self)

# Licence, Reference and Credits
__copyright__ = "Copyright (C) CCPN project ( 2014 - 2021"
__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: 2021-12-10 11:37:28 +0000 (Fri, December 10, 2021) $"
__version__ = "$Revision: 3.0.4 $"
# Created
__author__ = "$Author: CCPN $"
__date__ = "$Date: 2017-04-07 10:28:41 +0000 (Fri, April 07, 2017) $"
# Start of code

import re
import os
from PyQt5 import QtGui, QtWidgets, QtCore
import pandas as pd
from functools import partial
from collections import OrderedDict
from ccpn.core.lib.CcpnSorting import universalSortKey
from ccpn.ui.gui.widgets.Base import Base
from ccpn.ui.gui.widgets import MessageDialog
from ccpn.ui.gui.widgets.Label import Label
from ccpn.ui.gui.widgets.PulldownList import PulldownList
from ccpn.ui.gui.widgets.Splitter import Splitter
from ccpn.ui.gui.widgets.TableModel import ObjectTableModel
from ccpn.ui.gui.widgets.FileDialog import TablesFileDialog
from ccpn.ui.gui.widgets.LineEdit import LineEdit
from ccpn.ui.gui.widgets.ButtonList import ButtonList
from ccpn.ui.gui.widgets.Widget import Widget
from ccpn.ui.gui.popups.Dialog import CcpnDialog
from ccpn.ui.gui.widgets.CheckBox import CheckBox
from ccpn.util.Logging import getLogger
from ccpn.core.lib.ContextManagers import undoBlock

BG_COLOR = QtGui.QColor('#E0E0E0')

[docs]class ObjectTable(QtWidgets.QTableView, Base): columnSizeHint = 30 # per collumn size hint (to be multiplied by number of collums) rowSizeHint = 200 # total size hint (total size for all rows) def __init__(self, parent, columns, objects=None, actionCallback=None, selectionCallback=None, multiSelect=False, selectRows=True, numberRows=False, autoResize=False, enableExport=True, enableDelete=True, **kwds): super().__init__(parent) Base._init(self, **kwds) self._parent = parent self.graphPanel = None self.filterPanel = None self.model = None self.columns = columns self.objects = list(objects or []) self.callback = actionCallback self.fontMetric = QtGui.QFontMetricsF(self.font()) self.bbox = self.fontMetric.boundingRect self._silenceCallback = False self.selectionCallback = selectionCallback self.doubleClicked.connect(self.actionCallback) self.setAlternatingRowColors(True) self.autoResize = autoResize self.setContextMenuPolicy(QtCore.Qt.DefaultContextMenu) self.setHorizontalScrollMode(self.ScrollPerItem) self.setVerticalScrollMode(self.ScrollPerItem) self._hiddenColumns = [] self.multiSelect = multiSelect if multiSelect: self.setSelectionMode(self.ExtendedSelection) # + Continuous etc possible else: self.setSelectionMode(self.SingleSelection) self.selectRows = selectRows if selectRows: self.setSelectionBehavior(self.SelectRows) else: self.setSelectionBehavior(self.SelectItems) # + Columns possible self._setupModel() self.setSortingEnabled(True) self.sortByColumn(0, QtCore.Qt.AscendingOrder) delegate = ObjectTableItemDelegate(self) self.setItemDelegate(delegate) model = self.selectionModel() model.selectionChanged.connect(self._callback) #model.currentRowChanged.connect(self._callback) header = self.verticalHeader() header.setResizeMode(header.Interactive) header.setStretchLastSection(False) rowHeight = self.bbox('A').height() + 4 header.setMinimumSectionSize(rowHeight) header.setDefaultSectionSize(rowHeight) # if numberRows: # header.setVisible(True) # else: header.setVisible(False) # header = ObjectHeaderView(QtCore.Qt.Horizontal, self) # header.setMovable(True) # header.setMinimumSectionSize(30) # header.setDefaultSectionSize(30) # #header.setSortIndicatorShown(False) # #header.setStyleSheet('QHeaderView::down-arrow { image: url(icons/sort-up.png);} QHeaderView::up-arrow { image: url(icons/sort-down.png);}') # self.header = header self.setupHeaderStretch() self.setDragEnabled(True) self.acceptDrops() self.setDragDropMode(self.InternalMove) self.setDropIndicatorShown(True) self.searchWidget = None self._setHeaderContextMenu() self._setContextMenu(enableExport=enableExport, enableDelete=enableDelete)
[docs] def mousePressEvent(self, event): if event.button() == QtCore.Qt.RightButton: event.accept() else: super(ObjectTable, self).mousePressEvent(event)
def _setHeaderContextMenu(self): headers = self.horizontalHeader() headers.setContextMenuPolicy(QtCore.Qt.CustomContextMenu) headers.customContextMenuRequested.connect(self._raiseHeaderContextMenu) def _setContextMenu(self, enableExport=True, enableDelete=True): self.tableMenu = QtWidgets.QMenu() if enableExport: self.tableMenu.addAction("Export Table", self.exportDialog) if enableDelete: self.tableMenu.addAction("Delete", self.deleteObjFromTable) # ejb - added these but don't think they are needed # self.tableMenu.addAction("Select All", self.selectAllObjects) self.tableMenu.addAction("Clear Selection", self.clearSelection) self.setContextMenuPolicy(QtCore.Qt.CustomContextMenu) self.customContextMenuRequested.connect(self._raiseTableContextMenu)
[docs] def clearTable(self): "remove all objects from the table" self._silenceCallback = True self.setObjects([]) self._silenceCallback = False
[docs] def sizeHint(self): return QtCore.QSize(max(10, self.columnSizeHint * len(self.columns)), self.rowSizeHint)
def _setupModel(self): if self.model: sortDetails = (self.model.sortColumn(), self.model.sortOrder()) else: sortDetails = None objModel = ObjectTableModel(self) model = ObjectTableProxyModel(self) model.setSourceModel(objModel) if sortDetails is not None: column, order = sortDetails model.sort(column, order) self.setModel(model) self.model = model return model
[docs] def resizeEvent(self, event): if self.graphPanel and self.graphPanel.isVisible(): pos = self.graphPanel.pos() x = pos.x() y = pos.y() w = self.width() - x h = self.height() self.graphPanel.setGeometry(x, y, w, h) # If the table is connected to a qtgui Splitter it # should not resize unless it is specifically asked to. # This helps avoiding infinite repaint loops. if not (isinstance(self._parent, Splitter) or self._parent.__class__.__name__ == Splitter.__name__) or \ self._parent.doResize == True: return QtWidgets.QTableView.resizeEvent(self, event)
[docs] def clearSelection(self): model = self.selectionModel() model.clear()
def _callback(self, itemSelection): if self._silenceCallback: return elif self.selectionCallback: index = self.getCurrentIndex() row = index.row() col = index.column() model = self.selectionModel() if self.selectRows: selection = model.selectedRows(column=0) else: selection = model.selectedIndexes() if selection: rows = [i.row() for i in selection] rows.sort() objs = [] for row in rows: if row not in rows: row = rows[0] if row >= 0: index = self.model.index(row, 0) row = self.model.mapToSource(index).row() obj = self.objects[row] objs.append(obj) if not self.multiSelect: self.selectionCallback(obj, row, col) if self.multiSelect: self.selectionCallback(objs, row, col) else: self.selectionCallback(None, row, col)
[docs] def actionCallback(self, itemSelection): index = self.getCurrentIndex() row = index.row() col = index.column() model = self.selectionModel() if self.selectRows: selection = model.selectedRows(column=0) else: selection = model.selectedIndexes() if selection: rows = [i.row() for i in selection] rows.sort() if row not in rows: row = rows[0] index = self.model.index(row, 0) row = self.model.mapToSource(index).row() if row >= 0: obj = self.objects[row] if self.callback and not self.columns[col].setEditValue: # ejb - editable fields don't actionCallback self.callback(obj, row, col)
[docs] def hideColumnName(self, name): self.hideColumn(self.getColumnInt(columnName=name))
[docs] def showColumnName(self, name): self.showColumn(self.getColumnInt(columnName=name))
[docs] def getCurrentIndex(self): model = self.selectionModel() index = model.currentIndex() index = self.model.mapToSource(index) return index
[docs] def getCurrentObject(self): selectionModel = self.selectionModel() index = selectionModel.currentIndex() index = self.model.mapToSource(index) row = index.row() if row < 0: return else: return self.objects[row]
[docs] def getCurrentRow(self): selectionModel = self.selectionModel() index = selectionModel.currentIndex() index = self.model.mapToSource(index) return index.row()
[docs] def getSelectedRows(self): model = self.selectionModel() if self.selectRows: selection = model.selectedRows(column=0) else: selection = model.selectedIndexes() rows = [i.row() for i in selection] #rows = list(set(rows)) #rows.sort() return rows
[docs] def getSelectedObjects(self): model = self.selectionModel() if self.selectRows: selection = model.selectedRows(column=0) else: selection = model.selectedIndexes() objects = self.objects selectedObjects = [] for index in selection: row = self.model.mapToSource(index).row() selectedObjects.append(objects[row]) return selectedObjects
[docs] def setCurrentRow(self, row): selectionModel = self.selectionModel() index = self.model.index(row, 0) self._silenceCallback = True selectionModel.clearSelection() self._silenceCallback = False, selectionModel.Select | selectionModel.Rows) self.setFocus(QtCore.Qt.OtherFocusReason)
[docs] def setCurrentObject(self, obj): if obj in self.objects: row = self.objects.index(obj) selectionModel = self.selectionModel() index = self.model.sourceModel().index(row, 0) index = self.model.mapFromSource(index) self._silenceCallback = True selectionModel.clearSelection() self._silenceCallback = False, selectionModel.Select | selectionModel.Rows) self.setFocus(QtCore.Qt.OtherFocusReason)
[docs] def selectRow(self, row): selectionModel = self.selectionModel() index = self.model.index(row, 0) self._silenceCallback = True selectionModel.clearSelection() self._silenceCallback = False selectionModel.setCurrentIndex(index, selectionModel.SelectCurrent | selectionModel.Rows) self.setFocus(QtCore.Qt.OtherFocusReason)
[docs] def selectObject(self, obj): if obj in self.objects: row = self.objects.index(obj) selectionModel = self.selectionModel() index = self.model.sourceModel().index(row, 0) index = self.model.mapFromSource(index) self._silenceCallback = True selectionModel.clearSelection() self._silenceCallback = False selectionModel.setCurrentIndex(index, selectionModel.SelectCurrent | selectionModel.Rows) self.setFocus(QtCore.Qt.OtherFocusReason)
[docs] def setSelectedObjects(self, selection): return self.setCurrentObjects(selection)
[docs] def setCurrentObjects(self, selection): objects = self.objects selectionModel = self.selectionModel() rows = [] uniqObjs = set(selection) for row, obj in enumerate(objects): if obj in uniqObjs: rows.append(row) if rows: self._silenceCallback = True selectionModel.clearSelection() self.setUpdatesEnabled(False) selectMode = selectionModel.Select | selectionModel.Rows select = getIndex = self.model.sourceModel().index mapFromSource = self.model.mapFromSource for row in rows: index = getIndex(row, 0) index = mapFromSource(index) select(index, selectMode) self._silenceCallback = False self._callback(None) self.setUpdatesEnabled(True) self.setFocus(QtCore.Qt.OtherFocusReason)
def _highLightObjs(self, selection): objects = self.objects selectionModel = self.selectionModel() rows = [] uniqObjs = set(selection) for row, obj in enumerate(objects): if obj in uniqObjs: rows.append(row) if rows: self._silenceCallback = True selectionModel.clearSelection() self.setUpdatesEnabled(False) selectMode = selectionModel.Select | selectionModel.Rows select = getIndex = self.model.sourceModel().index mapFromSource = self.model.mapFromSource for row in rows: index = getIndex(row, 0) index = mapFromSource(index) select(index, selectMode) self._silenceCallback = False # self._callback(None) self.setUpdatesEnabled(True) self.setFocus(QtCore.Qt.OtherFocusReason)
[docs] def getColumnInt(self, columnName): for i, column in enumerate(self.columns): if column.heading == columnName: return i
[docs] def getColumn(self, columnName): for column in self.columns: if column.heading == columnName: return column
[docs] def setupHeaderStretch(self): columns = self.columns header = self.horizontalHeader() stretch = False objects = self.objects setColumnWidth = self.setColumnWidth bbox = self.bbox for i, column in enumerate(columns): if column.stretch: header.setResizeMode(i, header.Stretch) stretch = True if objects: minSize = bbox('MM').width() colSizes = [max(minSize, bbox(col.heading).width()) for col in columns] for i, objCol in enumerate(columns): for obj in objects[:35] + objects[-5:]: value = objCol.getFormatValue(obj) if isinstance(value, float): value = '%.5f' % value elif not isinstance(value, (str)): value = str(value) size = bbox(value).width() if size > colSizes[i]: colSizes[i] = size for i, width in enumerate(colSizes): setColumnWidth(i, width + 12) if not stretch: header.setStretchLastSection(True)
[docs] def closeEvent(self, event): self.hideGraph() self.hideFilter() QtWidgets.QTableView.closeEvent(self, event)
[docs] def destroy(self, *args): if self.filterPanel: self.filterPanel.destroy() if self.graphPanel: self.graphPanel.destroy() QtWidgets.QTableView.destroy(self, *args)
def _raiseHeaderContextMenu(self, pos): if self.searchWidget is None: self._addSearchWidget() pos = QtCore.QPoint(pos.x(), pos.y() + 10) #move the popup a bit down. Otherwise can trigger an event if the pointer is just on top the first item self.headerContextMenumenu = QtWidgets.QMenu() columnsSettings = self.headerContextMenumenu.addAction("Column Settings...") searchSettings = None if self.searchWidget is not None: searchSettings = self.headerContextMenumenu.addAction("Search") action = self.headerContextMenumenu.exec_(self.mapToGlobal(pos)) if action == columnsSettings: settingsPopup = ColumnViewSettingsPopup(parent=self._parent, hideColumns=self._hiddenColumns, table=self) settingsPopup.raise_() settingsPopup.exec_() # exclusive control to the menu and return _hiddencolumns if action == searchSettings: self.showSearchSettings() def _addSearchWidget(self): # TODO:Luca Add search option for any table if self._parent is not None: parentLayout = None if isinstance(self._parent, Base): # if hasattr(self._parent, 'getLayout'): parentLayout = self._parent.getLayout() if isinstance(parentLayout, QtWidgets.QGridLayout): idx = parentLayout.indexOf(self) location = parentLayout.getItemPosition(idx) if location is not None: if len(location) > 0: row, column, rowSpan, columnSpan = location self.searchWidget = ObjectTableFilter(table=self, grid=(0, 0), vAlign='B') parentLayout.addWidget(self.searchWidget, row + 2, column, rowSpan + 2, columnSpan) self.searchWidget.hide() return True
[docs] def showSearchSettings(self): if self.searchWidget is not None:
def _raiseTableContextMenu(self, pos): pos = QtCore.QPoint(pos.x() + 10, pos.y() + 10) action = self.tableMenu.exec_(self.mapToGlobal(pos))
[docs] def exportDialog(self): self.saveDialog = TablesFileDialog(parent=None, acceptMode='save', selectFile='ccpnTable.xlsx', fileFilter=".xlsx;; .csv;; .tsv;; .json ") self.saveDialog._show() path = self.saveDialog.selectedFile() if path: self.findExportFormats(path)
[docs] def findExportFormats(self, path): formatTypes = OrderedDict([ ('.xlsx', self.dataFrameToExcel), ('.csv', self.dataFrameToCsv), ('.tsv', self.dataFrameToTsv), ('.json', self.dataFrameToJson) ]) extension = os.path.splitext(path)[1] if extension in formatTypes.keys(): formatTypes[extension](self.tableToDataFrame(), path) return else: try: self.findExportFormats(str(path) + self.saveDialog.selectedNameFilter()) except: print('Format file not supported')
[docs] def dataFrameToExcel(self, dataFrame, path): dataFrame.to_excel(path, sheet_name='Table', index=False)
[docs] def dataFrameToCsv(self, dataFrame, path): dataFrame.to_csv(path)
[docs] def dataFrameToTsv(self, dataFrame, path): dataFrame.to_csv(path, sep='\t')
[docs] def dataFrameToJson(self, dataFrame, path): dataFrame.to_json(path, orient='split')
[docs] def tableToDataFrame(self): from pandas import DataFrame headers = [c.heading for c in self.columns] rows = [] for obj in self.objects: rows.append([x.getValue(obj) for x in self.columns]) dataFrame = DataFrame(rows, index=None, columns=headers) dataFrame.apply(pd.to_numeric, errors='ignore') return dataFrame
[docs] def selectAllObjects(self): self.selectAll()
[docs] def deleteObjFromTable(self): selected = self.getSelectedObjects() n = len(selected) title = 'Delete Item%s' % ('' if n == 1 else 's') msg = 'Delete %sselected item%s from the project?' % ('' if n == 1 else '%d ' % n, '' if n == 1 else 's') if MessageDialog.showYesNo(title, msg): if hasattr(selected[0], 'project'): thisProject = selected[0].project # thisProject._startCommandEchoBlock('application.table.deleteFromTable', [ for sI in selected]) with undoBlock(): try: self.blockSignals(True) for obj in selected: if hasattr(obj, 'pid'): # print ('>>> deleting', obj) obj.delete() except Exception as es: getLogger().warning(str(es)) finally: self.blockSignals(False) # thisProject._endCommandEchoBlock() else: # TODO:ED this is deleting from PandasTable, check for another way to get project for obj in selected: if hasattr(obj, 'pid'): obj.delete()
[docs] def filterRows(self): self.hideGraph() if not self.filterPanel: self.filterPanel = ObjectTableFilter(self) self.filterPanel.move(self.window().pos())
[docs] def hideFilter(self): if self.filterPanel: self.filterPanel.close()
[docs] def unfilter(self): if self.filterPanel: self.filterPanel.unfilterTable()
[docs] def getObjects(self, filtered=False): if self.filterPanel: if filtered: return list(self.objects) else: return list(self.filterPanel.origObjects) else: return list(self.objects)
[docs] def copyRow(self): objs = self.getSelectedObjects() if len(objs) > 0: rows = [] for obj in objs: rows.append([x.getValue(obj) for x in self.columns]) cb = QtWidgets.QApplication.clipboard() cb.clear(mode=cb.Clipboard) rowsStr = ",".join(str(x) for x in rows) rowsStr = rowsStr.replace('],', ']\n') rowsStr = rowsStr.replace(']', '') rowsStr = rowsStr.replace('[', '') rowsStr = rowsStr.replace("'", '') cb.setText(rowsStr, mode=cb.Clipboard)
def _syncFilterObjects(self, applyFilter=False): if self.filterPanel: if applyFilter is not None: self.filterPanel.origObjects = self.objects status = self.filterPanel.status if applyFilter and (status is not None): self.filterPanel.filterTable(status)
[docs] def replaceCurrentObject(self, object): model = self.model selectionModel = self.selectionModel() row = selectionModel.currentIndex().row() # the visible row indexA = model.index(row, 0) indexB = model.index(row, len(self.columns) - 1) index = model.mapToSource(indexA) # the underlying, original if index.row() < 0: return self.objects[index.row()] = object self._syncFilterObjects() model.dataChanged.emit(indexA, indexB)
[docs] def scrollToSelectedIndex(self): h = self.horizontalHeader() for i in range(h.count()): if not h.isSectionHidden(i) and h.sectionViewportPosition(i) >= 0: if self.getSelectedRows(): self.scrollTo(self.model.index(self.getSelectedRows()[0], i), self.PositionAtCenter)
[docs] def setObject(self, i, object): """Replaces an object in the _underlying_ list""" model = self.model self.objects[i] = object self._syncFilterObjects() index = model.sourceModel().index(i, 0) # the underlying, original indexA = model.mapFromSource(index) # the visible row indexB = model.index(indexA.row(), len(self.columns) - 1) model.dataChanged.emit(indexA, indexB)
[docs] def setRowObject(self, row, object): """Replaces an object in the _visible_ rows""" model = self.model indexA = model.index(row, 0) # the visible row indexB = model.index(row, len(self.columns) - 1) # the visible row index = model.mapToSource(indexA) # the underlying, original self.objects[index.row()] = object self._syncFilterObjects() model.dataChanged.emit(indexA, indexB)
[docs] def setObjectsAndColumns(self, objects, columns): self._silenceCallback = True # self.setObjects([]) self.setColumns(columns) self.setObjects(objects) self._silenceCallback = False
[docs] def setObjects(self, objects, applyFilter=False, filterApplied=False): if not filterApplied: if self.searchWidget is not None: self.searchWidget.updateSearchWidgets(self) selectedObjects = self.getSelectedObjects() # get current selection getIndex = self.model.sourceModel().index # print('FRFF', getIndex) model = self.model sourceModel = model.sourceModel() selected = set(self.getSelectedObjects()) current = self.getCurrentObject() n = len(objects) m = len(self.objects) c = len(self.columns) self.objects = list(objects) sourceModel.objects = self.objects if n > m: sourceModel.beginInsertRows(QtCore.QModelIndex(), m, n - 1) elif m > n: sourceModel.beginRemoveRows(QtCore.QModelIndex(), n, m - 1) indexA = model.index(0, 0) indexB = model.index(n - 1, c - 1) model.dataChanged.emit(indexA, indexB) # the visible rows if n > m: sourceModel.endInsertRows() elif m > n: sourceModel.endRemoveRows() if selected: self._silenceCallback = True selectionModel = self.selectionModel() selectionModel.clearSelection() selectMode = selectionModel.Select | selectionModel.Rows select = getIndex = self.model.sourceModel().index mapFromSource = self.model.mapFromSource for row, obj in enumerate(objects): if obj in selected: index = getIndex(row, 0) index = mapFromSource(index) if obj is current: selectionModel.setCurrentIndex(index, selectionModel.SelectCurrent) select(index, selectMode) self._silenceCallback = False sortCol = model.sortColumn() sortOrder = model.sortOrder() if sortCol >= 0: model.sort(sortCol, sortOrder) self._syncFilterObjects(applyFilter) self.setupHeaderStretch() # if self.autoResize: self.setVisible(False) # self.setEnabled(False) self.blockSignals(True) # self.horizontalHeader().setResizeMode(QtWidgets.QHeaderView.Interactive) # self.verticalHeader().setResizeMode(QtWidgets.QHeaderView.Fixed) # print (' >>>setObjects') self.resizeColumnsToContents() self.horizontalHeader().setResizeMode(QtWidgets.QHeaderView.Interactive) self.verticalHeader().setResizeMode(QtWidgets.QHeaderView.Fixed) self._highLightObjs(selectedObjects) # set back again if possible self.blockSignals(False) # self.setEnabled(True) self.setVisible(True)
[docs] def setColumns(self, columns): model = self.model sourceModel = model.sourceModel() selected = self.getSelectedObjects() current = self.getCurrentObject() n = len(columns) m = len(self.columns) r = len(self.objects) self.columns = columns sourceModel.columns = columns if n > m: sourceModel.beginInsertColumns(QtCore.QModelIndex(), m, n - 1) elif m > n: sourceModel.beginRemoveColumns(QtCore.QModelIndex(), n, m - 1) indexA = model.index(0, 0) indexB = model.index(r - 1, n - 1) model.dataChanged.emit(indexA, indexB) # the visible rows model.headerDataChanged.emit(QtCore.Qt.Horizontal, 0, n - 1) if n > m: sourceModel.endInsertColumns() elif m > n: sourceModel.endRemoveColumns() if selected: # may need to now highlight more columns selectionModel = self.selectionModel() for obj in selected: row = self.objects.index(obj) index = model.index(row, 0) if obj is current:, selectionModel.SelectCurrent | selectionModel.Rows) selectionModel.setCurrentIndex(index, selectionModel.SelectCurrent | selectionModel.Rows) else:, selectionModel.Select | selectionModel.Rows) self.setupHeaderStretch()
[docs] def getObject(self, row): return self.objects[row]
# def dragEnterEvent(self, event): # event.accept() # # def dragMoveEvent(self, event): # event.accept() # # def startDrag(self, event): # print("startDrag called") # index = self.indexAt(event.pos()) # print(index) # if not index.isValid(): # return # # self.moved_data = self.getObject(index.row()) # # drag = QtGui.QDrag(self) # # mimeData = QtCore.QMimeData() # mimeData.setData("application/blabla", "") # drag.setMimeData(mimeData) # # pixmap = QtGui.QPixmap() # pixmap = pixmap.grabWidget(self, self.visualRect(index)) # drag.setPixmap(pixmap) # # result = drag.start(QtCore.Qt.MoveAction) # # # def dropEvent(self, event): # # print("dropEvent called") # # point = event.pos() # # print(point) # # def mousePressEvent(self, event): # if (event.button() == QtCore.Qt.LeftButton) and ( # event.modifiers() & QtCore.Qt.ControlModifier): # print("mousePressEvent called") # self.startDrag(event) # else: # QtWidgets.QTableView.mousePressEvent(self, event) EDIT_ROLE = QtCore.Qt.EditRole
[docs]class ObjectTableItemDelegate(QtWidgets.QStyledItemDelegate): def __init__(self, parent): QtWidgets.QStyledItemDelegate.__init__(self, parent) self.customWidget = None self._parent = parent
[docs] def createEditor(self, parentWidget, itemStyle, index): # returns the edit widget col = index.column() objCol = self._parent.columns[col] if objCol.editClass: widget = objCol.editClass(None, *objCol.editArgs, **objCol.editKw) widget.setParent(parentWidget) self.customWidget = True return widget else: obj = self._parent.objects[index.row()] editValue = objCol.getEditValue(obj) if isinstance(editValue, (list, tuple)): widget = PulldownList(None) widget.setParent(parentWidget) self.customWidget = True return widget else: # Use the default, type-dependant factory # Deals with strings, bools, date time etc. self.customWidget = None editor = QtWidgets.QStyledItemDelegate.createEditor(self, parentWidget, itemStyle, index) if isinstance(editor, QtWidgets.QDoubleSpinBox): numDecimals = objCol.editDecimals if numDecimals is not None: editor.setDecimals(numDecimals) if objCol.editStep: editor.setSingleStep(objCol.editStep) else: editor.setSingleStep(10 ** -numDecimals) if isinstance(editor, QtWidgets.QSpinBox): if objCol.editStep: editor.setSingleStep(objCol.editStep) return editor
[docs] def setEditorData(self, widget, index): # provides the widget with data if self.customWidget: model = index.model() value =, EDIT_ROLE) if not isinstance(value, (list, tuple)): value = (value,) if hasattr(widget, 'setColor'): widget.setColor(*value) elif hasattr(widget, 'setData'): widget.setData(*value) elif hasattr(widget, 'set'): widget.set(*value) elif hasattr(widget, 'setValue'): widget.setValue(*value) elif hasattr(widget, 'setFile'): widget.setFile(*value) else: msg = 'Widget %s does not expose "setData", "set" or "setValue" method; ' % widget msg += 'required for table proxy editing' raise Exception(msg) else: return QtWidgets.QStyledItemDelegate.setEditorData(self, widget, index)
[docs] def updateEditorGeometry(self, widget, itemStyle, index): # ensures that the editor is displayed correctly if self.customWidget: cellRect = itemStyle.rect x = cellRect.x() y = cellRect.y() hint = widget.sizeHint() if hint.height() > cellRect.height(): if isinstance(widget, QtWidgets.QComboBox): # has a popup anyway widget.move(cellRect.topLeft()) else: pos = widget.mapToGlobal(cellRect.topLeft()) widget.setParent(self._parent, QtCore.Qt.Popup) # popup so not confined widget.move(pos) else: width = max(hint.width(), cellRect.width()) height = max(hint.height(), cellRect.height()) widget.setGeometry(x, y, width, height) else: return QtWidgets.QStyledItemDelegate.updateEditorGeometry(self, widget, itemStyle, index)
[docs] def setModelData(self, widget, mode, index): #returns updated data if self.customWidget: if hasattr(widget, 'get'): value = widget.get() elif hasattr(widget, 'value'): value = widget.value() elif hasattr(widget, 'getFile'): files = widget.selectedFiles() if not files: return value = files[0] else: msg = 'Widget %s does not expose "get" or "value" method; ' % widget msg += 'required for table proxy editing' raise Exception(msg) # del widget model = index.model() model.setData(index, value, EDIT_ROLE) else: return QtWidgets.QStyledItemDelegate.setModelData(self, widget, mode, index)
[docs]class ObjectHeaderView(QtWidgets.QHeaderView): def __init__(self, orient, parent): QtWidgets.QHeaderView.__init__(self, orient, parent) self.table = parent
#def sizeHint(self): # return QtCore.QSize(30*len(self.table.columns), self.table.bbox('A').height()) #def minimumSize(self): # # return QtCore.QSize(30*len(self.table.columns), self.table.bbox('A').height()) LESS_THAN = QtCore.QSortFilterProxyModel.lessThan
[docs]class ObjectTableProxyModel(QtCore.QSortFilterProxyModel): def __init__(self, parent): QtCore.QSortFilterProxyModel.__init__(self, parent=parent) self.table = parent
[docs] def lessThan(self, leftIndex, rightIndex): table = self.table columns = table.columns objCol = columns[leftIndex.column()] if objCol.orderFunc: objects = table.objects objA = objects[leftIndex.row()] objB = objects[rightIndex.row()] return objCol.orderFunc(objA, objB) else: return LESS_THAN(self, leftIndex, rightIndex)
[docs]class ObjectTableExport(QtWidgets.QDialog, Base): def __init__(self, table=None, **kwds): super().__init__(table) Base._init(self, **kwds) self.setWindowFlags(QtCore.Qt.Tool) self.table = table label = Label(self, 'Columns to export:', grid=(0, 0), gridSpan=(1, 2)) labels = ['Row Number', ] + [c.heading.replace('\n', ' ') for c in table.columns] values = [True] * len(labels) label = Label(self, 'Export format:', grid=(3, 0)) self.formatPulldown = PulldownList(self, EXPORT_FORMATS, grid=(3, 1)) self.setMaximumWidth(300)
[docs]class ColumnViewSettingsPopup(CcpnDialog): def __init__(self, table, parent=None, hideColumns=None, title='Column Settings', **kwds): CcpnDialog.__init__(self, parent, setLayout=True, windowTitle=title, **kwds) self.setContentsMargins(20, 20, 20, 20) self.table = table self.widgetColumnViewSettings = ColumnViewSettings(parent=self, table=table, hideColumns=hideColumns, grid=(0, 0)) buttons = ButtonList(self, texts=['Close'], callbacks=[self._close], grid=(1, 0), hAlign='c') self.setSizePolicy(QtWidgets.QSizePolicy.Fixed, QtWidgets.QSizePolicy.Fixed) def _close(self): 'Save the hidden columns to the table class. So it remembers when you open again the popup' hiddenColumns = self.widgetColumnViewSettings._getHiddenColumns() self.table._hiddenColumns = hiddenColumns self.reject() return hiddenColumns
SEARCH_MODES = ['Literal', 'Case Sensitive Literal', 'Regular Expression'] CheckboxTipText = 'Select column to be visible on the table.'
[docs]class ColumnViewSettings(Widget): """ hide show check boxes corresponding to the table columns """ def __init__(self, table, parent=None, direction='v', hideColumns=None, **kwds): Widget.__init__(self, parent, setLayout=True, **kwds) self.direction = direction self.table = table self.checkBoxes = [] # self.hiddenColumns = [] self.hideColumns = hideColumns or [] # list of column names self._hideColumnWidths = {} self.initCheckBoxes() self.filterLabel = Label(self, 'Display Columns', grid=(0, 1), vAlign='t', hAlign='l')
[docs] def initCheckBoxes(self): columns = self.table.columns if columns: for i, colum in enumerate(columns): if self.direction == 'v': i += 1 cb = CheckBox(self, text=colum.heading, grid=(i, 1), callback=self.checkBoxCallBack, checked=True if colum.heading not in self.hideColumns else False, hAlign='l', tipText=CheckboxTipText, ) else: cb = CheckBox(self, text=colum.heading, grid=(1, i), callback=self.checkBoxCallBack, checked=True if colum.heading not in self.hideColumns else False, hAlign='l', tipText=CheckboxTipText, ) cb.setMinimumSize(cb.sizeHint() * 1.3) self.checkBoxes.append(cb) if colum.heading not in self.hideColumns: self._showColumn(colum.heading) else: self._hideColumn(colum.heading)
# self.table._hiddenColumns = [] def _getHiddenColumns(self): return self.hideColumns
[docs] def checkBoxCallBack(self): currentCheckBox = self.sender() name = currentCheckBox.text() checkedBoxes = [] for checkBox in self.checkBoxes: checkBox.setEnabled(True) if checkBox.isChecked(): checkedBoxes.append(checkBox) if len(checkedBoxes) > 0: if currentCheckBox.isChecked(): self._showColumn(name) else: self._hideColumn(name) else: #always display at least one columns, disables the last checkbox currentCheckBox.setEnabled(False) currentCheckBox.setChecked(True)
[docs] def updateWidgets(self, table): self.table = table if self.checkBoxes: for cb in self.checkBoxes: cb.deleteLater() self.checkBoxes = [] self.initCheckBoxes()
def _hideColumn(self, name): self.table.hideColumn(self.table.getColumnInt(columnName=name)) # self._hideColumnWidths[name] = self.table.columnWidth(self.table.getColumnInt(columnName=name)) if name not in self.hideColumns: self.hideColumns.append(name) # self.hiddenColumns.append(name) def _showColumn(self, name): self.table.showColumn(self.table.getColumnInt(columnName=name)) # if name in self._hideColumnWidths: # self.table.setColumnWidth(self.table.getColumnInt(columnName=name), self._hideColumnWidths[name]) self.table.resizeColumnToContents(self.table.getColumnInt(columnName=name)) if name in self.hideColumns: self.hideColumns.remove(name)
[docs]class ObjectTableFilter(Widget): def __init__(self, table, parent=None, **kwds): Widget.__init__(self, parent, setLayout=False, **kwds) self.table = table self.origObjects = self.table.objects labelColumn = Label(self, 'Search in', ) self.columnOptions = PulldownList(self, ) self.columnOptions.setMinimumWidth(self.columnOptions.sizeHint().width() * 2) self.searchLabel = Label(self, 'Search for', ) self.edit = LineEdit(self, ) self.searchButtons = ButtonList(self, texts=['Close', 'Reset', 'Search'], tipTexts=['Close Search', 'Restore Table', 'Search'], callbacks=[self.hideSearch, partial(self.restoreTable, self.table), partial(self.findOnTable, self.table)]) self.searchButtons.buttons[1].setEnabled(False) self.widgetLayout = QtWidgets.QHBoxLayout() self.setLayout(self.widgetLayout) ws = [labelColumn, self.columnOptions, self.searchLabel, self.edit, self.searchButtons] for w in ws: self.widgetLayout.addWidget(w) self.setColumnOptions()
[docs] def setColumnOptions(self): columns = self.table.columns texts = [c.heading for c in columns] objectsRange = range(len(columns)) self.columnOptions.clear() self.columnOptions.addItem('Whole Table', item=None) for i, text in enumerate(texts): self.columnOptions.addItem(text, objectsRange[i]) self.columnOptions.setIndex(0)
[docs] def updateSearchWidgets(self, table): self.table = table self.origObjects = self.table.objects self.setColumnOptions() self.searchButtons.buttons[1].setEnabled(False)
[docs] def hideSearch(self): self.restoreTable(self.table) if self.table.searchWidget is not None: self.table.searchWidget.hide()
[docs] def restoreTable(self, table): #TODO:ED this works for all objects in the project EXCEPT PandasDataframes which # don't have _parent if len(self.table.objects) > 0: if hasattr(self.table.objects[0], '_parent'): parentObjects = self.table.objects[0]._parent if parentObjects is not None: if hasattr(parentObjects, '_childClasses'): cC = parentObjects._childClasses if len(cC) > 0: if hasattr(parentObjects._childClasses[0], '_pluralLinkName'): names = parentObjects._childClasses[0]._pluralLinkName originalObjects = getattr(parentObjects, names) table.setObjects(originalObjects) self.edit.clear() self.searchButtons.buttons[1].setEnabled(False)
[docs] def findOnTable(self, table): if self.edit.text() == '' or None: self.restoreTable(table) return self.table = table self.origObjects = self.table.objects self.table.setObjects(self.origObjects, filterApplied=True) text = self.edit.text() columns = self.table.columns if self.columnOptions.currentObject() is None: allMatched = [] for i in range(len(columns)): objCol = columns[i] matched = self.searchMatches(objCol, text) allMatched.append(matched) matched = set([i for m in allMatched for i in m]) #making a single list of matching objs else: objCol = columns[self.columnOptions.currentObject()] matched = self.searchMatches(objCol, text) if matched: self.table.setObjects(matched, filterApplied=True) self.searchButtons.buttons[1].setEnabled(True) else: self.searchButtons.buttons[1].setEnabled(False) self.restoreTable(table) MessageDialog.showWarning('Not found', '')
[docs] def searchMatches(self, objCol, text): matched = [] objs = self.table.objects for obj in objs: value = u'%s' % (objCol.getValue(obj)) if str(text) in str(value): matched.append(obj) elif str(text) == str(value): matched.append(obj) return matched
[docs] def setFilteredObjects(self): selected = self.table.getSelectedObjects() self.table.setObjects(selected)
[docs]class Column: def __init__(self, heading, getValue, getEditValue=None, setEditValue=None, editClass=None, editArgs=None, editKw=None, tipText=None, getColor=None, getIcon=None, stretch=False, format=None, editDecimals=None, editStep=None, alignment=QtCore.Qt.AlignLeft): # editDecimals=None, editStep=None, alignment=QtCore.Qt.AlignLeft, # orderFunc=None): self.heading = heading self.getValue = getValue or self._defaultText self.getEditValue = getEditValue or getValue self.setEditValue = setEditValue self.editClass = editClass self.editArgs = editArgs or [] self.editKw = editKw or {} self.stretch = stretch self.format = format self.editDecimals = editDecimals self.editStep = editStep self.defaultIcon = None #self.alignment = ALIGN_OPTS.get(alignment, alignment) | Qt.AlignVCenter # Alignment combinations broken in PyQt5 v1.1.1 # Use better default than top left self.alignment = QtCore.Qt.AlignCenter # self.orderFunc = orderFunc self.getIcon = getIcon or self._defaultIcon self.getColor = getColor or self._defaultColor self.tipText = tipText self._checkTextAttrs()
[docs] def orderFunc(self, objA, objB): return (universalSortKey(self.getValue(objA)) < universalSortKey(self.getValue(objB)))
[docs] def getFormatValue(self, obj): value = self.getValue(obj) format = self.format if format and (value is not None): return format % value else: return value
def _checkTextAttrs(self): if isinstance(self.getValue, str): attr = self.getValue self.getValue = lambda obj: getattr(obj, attr) if isinstance(self.getEditValue, str): attr = self.getEditValue self.getEditValue = lambda obj: getattr(obj, attr) if isinstance(self.setEditValue, str): attr = self.setEditValue self.setEditValue = lambda obj, value: setattr(obj, attr, value) if isinstance(self.getIcon, QtGui.QIcon): self.defaultIcon = self.getIcon self.getIcon = self._defaultIcon def _defaultText(self, obj): return ' ' def _defaultColor(self, obj): return BG_COLOR def _defaultIcon(self, obj): return self.defaultIcon
if __name__ == '__main__': from ccpn.ui.gui.widgets.Icon import Icon from ccpn.ui.gui.widgets.Application import TestApplication from ccpn.ui.gui.popups.Dialog import CcpnDialog from ccpn.util import Colour app = TestApplication() class mockObj(object): 'Mock object to test the table widget editing properties' exampleStr = 'exampleStr' integer = 3 exampleFloat = 3.1 # This will create a double spin box exampleBool = True # This will create a check box string = 'white' # This will create a line Edit exampleList = (('Mock', 'Test'),) # This will create a pulldown color = QtGui.QColor('Red') icon = Icon('icons/warning') r = Colour.colourNameToHexDict['red'] y = Colour.colourNameToHexDict['yellow'] b = Colour.colourNameToHexDict['blue'] colouredIcons = [None, Icon(color=r), Icon(color=y), Icon(color=b)] flagsList = [[''] * len(colouredIcons), [Icon] * len(colouredIcons), 1, colouredIcons] # This will create a pulldown. Make a list with the # same structure of pulldown setData function: (texts=None, objects=None, index=None, # icons=None, clear=True, headerText=None, headerEnabled=False, headerIcon=None) def editBool(self, value): mockObj.exampleBool = value def editFloat(self, value): mockObj.exampleFloat = value def editPulldown(self, value): mockObj.exampleList = value def editStr(self, value): mockObj.exampleStr = value def editFlags(self, value): print('test') popup = CcpnDialog(windowTitle='Test Table', setLayout=True) cString = Column(heading='Str', getValue=lambda i: mockObj.exampleStr, setEditValue=lambda mockObj, value: mockObj.editStr(mockObj, value), getColor=lambda i: mockObj.y, ) cFloat = Column(heading='Float', getValue=lambda i: mockObj.exampleFloat, setEditValue=lambda mockObj, value: mockObj.editFloat(mockObj, value), editDecimals=3, editStep=0.1, getColor=lambda i: mockObj.r, ) cBool = Column(heading='Bool', getValue=lambda i: mockObj.exampleBool, setEditValue=lambda mockObj, value: mockObj.editBool(mockObj, value), getColor=lambda i: mockObj.b, ) cPulldown = Column(heading='Pulldown', getValue=lambda i: mockObj.exampleList, setEditValue=lambda mockObj, value: mockObj.editPulldown(mockObj, value), ) cIcon = Column(heading='Icon', getValue=None, getIcon=lambda i: mockObj.icon, ) cFlags = Column(heading='Flags', getValue=lambda i: mockObj.flagsList, setEditValue=lambda mockObj, value: mockObj.editFlags(mockObj, value), getColor=lambda i: mockObj.color, ) table = ObjectTable(parent=popup, columns=[cString, cFloat, cBool, cPulldown, cIcon, cFlags], objects=None, grid=(0, 0)) table.setObjects([mockObj] * 5) print(table.model.index) popup.raise_() app.start()