lab7.py 文件源码

def add_bars(win):
    global now
    if now is None:
        QMessageBox.warning(win, "????????!", "?? ?????? ??????????!")
        return
    buf = win.scene.itemAt(now, QTransform())
    if buf is None:
        QMessageBox.warning(win, "????????!", "?? ?????? ??????????!")
    else:
        buf = buf.rect()
        win.clip = [buf.left(), buf.right(), buf.top(),  buf.bottom()]

        t = abs(win.clip[2] - win.clip[3]) * 0.8
        k = abs(win.clip[0] - win.clip[1]) * 0.8
        # ?????? ????????? ???????
        win.pen.setColor(red)
        w.lines.append([[win.clip[0], win.clip[2] + t],  [win.clip[0], win.clip[3] - t]])
        add_row(w)
        i = w.table.rowCount() - 1
        item_b = QTableWidgetItem("[{0}, {1}]".format(win.clip[0], win.clip[2] + t))
        item_e = QTableWidgetItem("[{0}, {1}]".format(win.clip[0], win.clip[3] - t))
        w.table.setItem(i, 0, item_b)
        w.table.setItem(i, 1, item_e)
        win.scene.addLine(win.clip[0], win.clip[2] + t,  win.clip[0], win.clip[3] - t, win.pen)

        w.lines.append([[win.clip[1], win.clip[2] + t],  [win.clip[1], win.clip[3] - t]])
        add_row(w)
        i = w.table.rowCount() - 1
        item_b = QTableWidgetItem("[{0}, {1}]".format(win.clip[1], win.clip[2] + t))
        item_e = QTableWidgetItem("[{0}, {1}]".format(win.clip[1], win.clip[3] - t))
        w.table.setItem(i, 0, item_b)
        w.table.setItem(i, 1, item_e)
        win.scene.addLine(win.clip[1], win.clip[3] - t,  win.clip[1], win.clip[2] + t, win.pen)

        w.lines.append([[win.clip[0] + k, win.clip[2]], [win.clip[1] - k, win.clip[2]]])
        add_row(w)
        i = w.table.rowCount() - 1
        item_b = QTableWidgetItem("[{0}, {1}]".format(win.clip[0] + k, win.clip[2]))
        item_e = QTableWidgetItem("[{0}, {1}]".format(win.clip[1] - k, win.clip[2]))
        w.table.setItem(i, 0, item_b)
        w.table.setItem(i, 1, item_e)
        win.scene.addLine(win.clip[0] + k, win.clip[2], win.clip[1] - k, win.clip[2], win.pen)

        w.lines.append([[win.clip[0] + k, win.clip[3]], [win.clip[1] - k, win.clip[3]]])
        add_row(w)
        i = w.table.rowCount() - 1
        item_b = QTableWidgetItem("[{0}, {1}]".format(win.clip[0] + k, win.clip[3]))
        item_e = QTableWidgetItem("[{0}, {1}]".format(win.clip[1] - k, win.clip[3]))
        w.table.setItem(i, 0, item_b)
        w.table.setItem(i, 1, item_e)
        win.scene.addLine(win.clip[0] + k, win.clip[3], win.clip[1] - k, win.clip[3], win.pen)