lab8.py 文件源码

 复制代码def add_bars(win):
    if len(win.edges) == 0:
        QMessageBox.warning(win, "????????!", "?? ?????? ??????????!")
        return
    win.pen.setColor(red)
    w.lines.append([[win.edges[0].x() - 15, win.edges[0].y() - 15],
                    [win.edges[1].x() - 15, win.edges[1].y() - 15]])
    add_row(w.table_bars)
    i = w.table_bars.rowCount() - 1
    item_b = QTableWidgetItem("[{0}, {1}]".format(win.edges[0].x() - 15 , win.edges[0].y() - 15))
    item_e = QTableWidgetItem("[{0}, {1}]".format(win.edges[1].x() - 15, win.edges[1].y() - 15))
    w.table_bars.setItem(i, 0, item_b)
    w.table_bars.setItem(i, 1, item_e)
    w.scene.addLine(win.edges[0].x() - 15, win.edges[0].y() - 15, win.edges[1].x() - 15, win.edges[1].y() - 15, w.pen)

    win.pen.setColor(red)
    w.lines.append([[win.edges[0].x() + 15, win.edges[0].y() + 15],
                    [win.edges[1].x() + 15, win.edges[1].y() + 15]])
    add_row(w.table_bars)
    i = w.table_bars.rowCount() - 1
    item_b = QTableWidgetItem("[{0}, {1}]".format(win.edges[0].x() + 15, win.edges[0].y() + 15))
    item_e = QTableWidgetItem("[{0}, {1}]".format(win.edges[1].x() + 15, win.edges[1].y() + 15))
    w.table_bars.setItem(i, 0, item_b)
    w.table_bars.setItem(i, 1, item_e)
    w.scene.addLine(win.edges[0].x() + 15, win.edges[0].y() + 15, win.edges[1].x() + 15, win.edges[1].y() + 15, w.pen)