lab8.py 文件源码

def add_point(point):
    global w
    if w.input_rect:
        w.pen.setColor(black)
        if w.point_now_rect is None:
            w.point_now_rect = point
            w.point_lock = point
            add_row(w.table_rect)
            i = w.table_rect.rowCount() - 1
            item_x = QTableWidgetItem("{0}".format(point.x()))
            item_y = QTableWidgetItem("{0}".format(point.y()))
            w.table_rect.setItem(i, 0, item_x)
            w.table_rect.setItem(i, 1, item_y)
        else:
            w.edges.append(point)
            w.point_now_rect = point
            add_row(w.table_rect)
            i = w.table_rect.rowCount() - 1
            item_x = QTableWidgetItem("{0}".format(point.x()))
            item_y = QTableWidgetItem("{0}".format(point.y()))
            w.table_rect.setItem(i, 0, item_x)
            w.table_rect.setItem(i, 1, item_y)
            item_x = w.table_rect.item(i-1, 0)
            item_y = w.table_rect.item(i-1, 1)
            w.scene.addLine(point.x(), point.y(), float(item_x.text()), float(item_y.text()), w.pen)
    if w.input_bars:
        w.pen.setColor(red)
        if w.point_now_bars is None:
            w.point_now_bars = point
        else:
            w.lines.append([[w.point_now_bars.x(), w.point_now_bars.y()],
                            [point.x(), point.y()]])

            add_row(w.table_bars)
            i = w.table_bars.rowCount() - 1
            item_b = QTableWidgetItem("[{0}, {1}]".format(w.point_now_bars.x(), w.point_now_bars.y()))
            item_e = QTableWidgetItem("[{0}, {1}]".format(point.x(), point.y()))
            w.table_bars.setItem(i, 0, item_b)
            w.table_bars.setItem(i, 1, item_e)
            w.scene.addLine(w.point_now_bars.x(), w.point_now_bars.y(), point.x(), point.y(), w.pen)
            w.point_now_bars = None