main.py 文件源码

def init_page_btns(self):
        """
        Create the start page and pages to scrape buttons along
        with their corresponding labels. Each label and spinbox
        is first grouped together vertically, then put together
        with the other spinbox horizontally and finally into the
        main layout of our window.
        """
        self.pg_spinboxes = QtGui.QHBoxLayout()

        # START PG: spinbox to indicate the page to start scraping on
        self.start_pg_group = QtGui.QVBoxLayout()
        self.start_pg_group.setAlignment(QtCore.Qt.AlignTop)

        self.start_lbl = QtGui.QLabel(self)
        self.start_lbl.setText("start page")

        self.start_pg_spn = QtGui.QSpinBox(self)
        self.start_pg_spn.valueChanged[int].connect(self.set_start_pg)

        self.start_pg_group.addWidget(self.start_lbl)     # "start page"
        self.start_pg_group.addWidget(self.start_pg_spn)  # <spinbox>
        self.pg_spinboxes.addLayout(self.start_pg_group)
        self.pg_spinboxes.addSpacing(20)

        # NUM PGS: spinbox to indicate the number of pages to scrape
        self.n_pgs_group = QtGui.QVBoxLayout()
        self.n_pgs_group.setAlignment(QtCore.Qt.AlignTop)

        self.n_pgs_lbl = QtGui.QLabel(self)
        self.n_pgs_lbl.setText("pages to scrape")

        self.n_pgs_spn = QtGui.QSpinBox(self)
        self.n_pgs_spn.valueChanged[int].connect(self.set_max_pgs)
        self.n_pgs_spn.setMinimum(1)

        self.n_pgs_group.addWidget(self.n_pgs_lbl)        # "pages to scrape"
        self.n_pgs_group.addWidget(self.n_pgs_spn)        # <spinbox>
        self.n_pgs_group.setAlignment(QtCore.Qt.Vertical)
        self.pg_spinboxes.addLayout(self.n_pgs_group)

        # Combine both in a box.
        self.pg_spinboxes.setAlignment(QtCore.Qt.AlignTop)
        self.left_pane.addLayout(self.pg_spinboxes)