HYTOS

# coding: utf-8

import sys

import os

import math

from PyQt5.QtGui import *

from PyQt5.QtCore import *

from PyQt5.QtSvg import *

from PyQt5.QtWidgets import (QApplication, QGraphicsItem)

from SymbolSvgItem import SymbolSvgItem

from EngineeringConnectorItem import QEngineeringConnectorItem

class QEngineeringNozzleItem(SymbolSvgItem):

    ZVALUE = 20

    clicked = pyqtSignal(QGraphicsSvgItem)

    '''

    '''

    def __init__(self, path, uid=None):

        SymbolSvgItem.__init__(self, path, uid)

        self._props = [['Name', None], ['Size', None]]

        self.setZValue(QEngineeringNozzleItem.ZVALUE)

    '''

        @brief      getter of property

        @author     humkyung

        @date       2018.07.29

    '''

    @property

    def props(self):

        return self._props

    '''

        @brief  connect attribute

        @author humkyung

        @date   2018.07.19

    '''

    def connectAttribute(self, attributes):

        from QEngineeringTagNoTextItem import QEngineeringTagNoTextItem

        self.attrs.clear()

        super(QEngineeringNozzleItem, self).connectAttribute(attributes)

        rect = self.sceneBoundingRect()

        attrs = [attr for attr in attributes if type(attr) is QEngineeringTagNoTextItem]

        # check if text locates inside equipment

        for attr in attrs:

            if rect.contains(attr.center()):

                self.attrs.append(attr)

                attrs.remove(attr)

                break

        if not self.attrs:

            minDist = None

            selected = None

            # get nearest text from nozzle 

            for attr in attrs:

                dx = attr.center().x() - rect.center().x()

                dy = attr.center().y() - rect.center().y()

                dist = math.sqrt(dx*dx + dy*dy)

                if (minDist is None) or (dist < minDist):

                    minDist = dist

                    selected = attr

            if selected is not None: self.attrs.append(selected)

    '''

        @brief      generate xml code for nozzle

        @author     humkyung

        @date       2018.07.19

    '''

    def toXml(self):

        from xml.etree.ElementTree import Element, SubElement, dump, ElementTree

        try:

            node = SymbolSvgItem.toXml(self)

            self.toXmlAsAttribute(node)

        except Exception as ex:

            print('error occured({}) in {}:{}'.format(ex, sys.exc_info()[-1].tb_frame.f_code.co_filename, sys.exc_info()[-1].tb_lineno))

        return node 

    '''

        @brief  generate xml code for attribute

        @author humkyung

        @date   2018.07.19

    '''

    def toXmlAsAttribute(self, parentNode):

        for attr in self.attrs:

            parentNode.append(attr.toXml(self, None))