class ListSettingsRowEdit(QDialog):

    def __init__(self, specifications, content, parent = None):

        super().__init__(parent)

        self.content = content

        self.specifications = specifications

        self.widgets = {}

        self.initUI()

    def initUI(self):

        vbox = QVBoxLayout()

        hbox = QHBoxLayout()

        for s in self.specifications:

            edit = QLineEdit()

            edit.setPlaceholderText(self.tr(s.placeholder))

            edit.setText(self.content[s.key])

            self.widgets[s.key] = edit

            hbox.addWidget(edit)

        vbox.addLayout(hbox)

        buttons = QHBoxLayout()

        buttons.addStretch(1)

        okbutton = QPushButton(self.tr("OK"))

        buttons.addWidget(okbutton)

        okbutton.clicked.connect(self.save)

        vbox.addLayout(buttons)

        self.setLayout(vbox)

    def save(self):

        self.content = {}

        for s in self.specifications:

            self.content[s.key] = self.widgets[s.key].text()

        self.close()

    def editLine(self, item, column):

        specs = self.conf.specifications

        data = {}

        i = 0

        for s in specs:

            data[s.key] = item.text(i)

            i += 1

        w = ListSettingsRowEdit(specs, data, self)

        w.exec_()

        i = 0

        for s in specs:

            item.setText(i, w.content[s.key])

            i += 1

        self.textChanged.emit()

        self.treeWidget.itemDoubleClicked.connect(self.editLine)