我们从Python开源项目中，提取了以下11个代码示例，用于说明如何使用PyQt5.QtCore.Qt.TextAlignmentRole()。
def data(self, role): if role in (Qt.EditRole, Qt.StatusTipRole): return self.formula() if role == Qt.DisplayRole: return self.display() t = str(self.display()) try: number = int(t) except ValueError: number = None if role == Qt.TextColorRole: if number is None: return QColor(Qt.black) elif number < 0: return QColor(Qt.red) return QColor(Qt.blue) if role == Qt.TextAlignmentRole: if t and (t[0].isdigit() or t[0] == '-'): return Qt.AlignRight | Qt.AlignVCenter return super(SpreadSheetItem, self).data(role)
def data(self, index, role): """Return role specific data for the item referred by index.column().""" if not index.isValid(): pass node = self.getNode(index) column = index.column() value = node.getItemData(column) if role == Qt.DisplayRole: try: if column == 1: return '{0:8.3f}'.format(value) else: return '{0:8.2f}'.format(value) except ValueError: return value if role == Qt.EditRole: return str(value) if role == Qt.CheckStateRole: if node.parent == self.rootNode and column == 0: return node.getCheckState() if role == Qt.TextAlignmentRole: if column > 0: return Qt.AlignRight
def test_performance(self): self.cframe = self.form.compare_frame_controller self.gframe = self.form.generator_tab_controller self.form.ui.tabWidget.setCurrentIndex(2) self.cframe.ui.cbProtoView.setCurrentIndex(0) self.gframe.ui.cbViewType.setCurrentIndex(0) proto = self.__build_protocol() self.cframe.add_protocol(proto) proto.qt_signals.protocol_updated.emit() self.assertEqual(self.cframe.protocol_model.row_count, self.NUM_MESSAGES) self.assertEqual(self.cframe.protocol_model.col_count, self.BITS_PER_MESSAGE) self.__add_labels() item = self.gframe.tree_model.rootItem.children[0].children[0] index = self.gframe.tree_model.createIndex(0, 0, item) rect = self.gframe.ui.treeProtocols.visualRect(index) QTest.mousePress(self.gframe.ui.treeProtocols.viewport(), Qt.LeftButton, pos = rect.center()) self.assertEqual(self.gframe.ui.treeProtocols.selectedIndexes()[0], index) mimedata = self.gframe.tree_model.mimeData(self.gframe.ui.treeProtocols.selectedIndexes()) t = time.time() self.gframe.table_model.dropMimeData(mimedata, 1, -1, -1, self.gframe.table_model.createIndex(0, 0)) print("{0}: {1} s".format("Time for dropping mimedata", (time.time() - t))) self.assertEqual(self.gframe.table_model.row_count, self.NUM_MESSAGES) print("==============================00") indx = self.gframe.table_model.createIndex(int(self.NUM_MESSAGES / 2), int(self.BITS_PER_MESSAGE / 2)) roles = (Qt.DisplayRole, Qt.BackgroundColorRole, Qt.TextAlignmentRole, Qt.TextColorRole, Qt.FontRole) time_for_display = 100 for role in roles: t = time.time() self.gframe.table_model.data(indx, role = role) microseconds = (time.time() - t) * 10 ** 6 self.assertLessEqual(microseconds, 2 * time_for_display, msg=self.__role_to_str(role)) if role == Qt.DisplayRole: time_for_display = microseconds print("{0}: {1} µs".format(self.__role_to_str(role), microseconds))
def __role_to_str(self, role): if role == Qt.DisplayRole: return "Display" if role == Qt.BackgroundColorRole: return "BG-Color" if role == Qt.TextAlignmentRole: return "Text-Alignment" if role == Qt.TextColorRole: return "TextColor" if role == Qt.ToolTipRole: return "ToolTip" if role == Qt.FontRole: return "Font"
def headerData(self, section, orientation, role=Qt.DisplayRole): if role == Qt.DisplayRole and orientation == Qt.Horizontal: return self.header_labels[section] elif role == Qt.TextAlignmentRole: return Qt.AlignLeft return super().headerData(section, orientation, role)
def data(self, index: QModelIndex, role=Qt.DisplayRole): i, j = index.row(), index.column() if role == Qt.DisplayRole: try: lbl = self.message_type[i] except IndexError: return False if j == 0: return lbl.name elif j == 1: return self.message.get_label_range(lbl, view=self.proto_view, decode=True)[0] + 1 elif j == 2: return self.message.get_label_range(lbl, view=self.proto_view, decode=True)[1] elif j == 3: return lbl.color_index elif j == 4: return lbl.apply_decoding elif role == Qt.TextAlignmentRole: return Qt.AlignCenter elif role == Qt.FontRole and j == 0: font = QFont() font.setItalic(self.message_type[i].field_type is None) return font else: return None
def data(self, index, role=Qt.DisplayRole): '''The data stored under the given role for the item referred to by the index. Args: index (:obj:`QtCore.QModelIndex`): Index role (:obj:`Qt.ItemDataRole`): Default :obj:`Qt.DisplayRole` Returns: data ''' if role == Qt.DisplayRole: row = self._data[index.row()] if (index.column() == 0) and (type(row) != dict): return row elif index.column() < self.columnCount(): if type(row) == dict: if self.header[index.column()] in row: return row[self.header[index.column()]] elif self.header[index.column()].lower() in row: return row[self.header[index.column()].lower()] return row[index.column()] return None elif role == Qt.FontRole: return QtGui.QFont().setPointSize(30) elif role == Qt.DecorationRole and index.column() == 0: return None elif role == Qt.TextAlignmentRole: return Qt.AlignLeft;
def data(self, index, role): if not index.isValid(): return None if not (0 <= index.row() < self.rowCount()): return None elif role == Qt.FontRole: return QtGui.QFont().setPointSize(30) elif role == Qt.DecorationRole and index.column() == 0: return None elif role == Qt.TextAlignmentRole: return Qt.AlignLeft; # Color background if role == Qt.BackgroundRole: function = self._data[index.row()] # Row is selected if index.row() in self.rows_selected: return FIRST.color_selected # Data has been updated since original if function.has_changed: return FIRST.color_changed # if function.id is not None: return FIRST.color_unchanged # Return the default color return FIRST.color_default if role == Qt.DisplayRole: function = self._data[index.row()] column = index.column() if 0 == column: return '0x{0:X}'.format(function.address) elif 1 == column: return function.name elif 2 == column: return function.prototype elif 3 == column: return function.comment return None return super(FIRST.Model.Upload, self).data(index, role)
