treemodel.py 文件源码

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