lab9.py 文件源码

def add_point(point):
    global w
    if w.input_clip:
        w.pen.setColor(black)
        if w.point_now_clip is None:
            w.point_now_clip = point
            w.point_lock_clip = 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.clip.append(point)
            w.point_now_clip = 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_pol:
        w.pen.setColor(blue)
        if w.point_now_pol is None:
            w.point_now_pol = point
            w.point_lock_pol = point
            add_row(w.table_pol)
            i = w.table_pol.rowCount() - 1
            item_x = QTableWidgetItem("{0}".format(point.x()))
            item_y = QTableWidgetItem("{0}".format(point.y()))
            w.table_pol.setItem(i, 0, item_x)
            w.table_pol.setItem(i, 1, item_y)
        else:
            w.pol.append(point)
            w.point_now_pol = point
            add_row(w.table_pol)
            i = w.table_pol.rowCount() - 1
            item_x = QTableWidgetItem("{0}".format(point.x()))
            item_y = QTableWidgetItem("{0}".format(point.y()))
            w.table_pol.setItem(i, 0, item_x)
            w.table_pol.setItem(i, 1, item_y)
            item_x = w.table_pol.item(i-1, 0)
            item_y = w.table_pol.item(i-1, 1)
            w.scene.addLine(point.x(), point.y(), float(item_x.text()), float(item_y.text()), w.pen)