HYTOS

#!/usr/bin/env/python3

# 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 PyQt5.QtXml import *

from AppDocData import *

from EngineeringConnectorItem import QEngineeringConnectorItem

from QEngineeringAbstractItem import QEngineeringAbstractItem

import SelectAttributeDialog

class SymbolSvgItem(QGraphicsSvgItem, QEngineeringAbstractItem):

    clicked = pyqtSignal(QGraphicsSvgItem)

    ZVALUE = 50

    HIGHLIGHT = '#BC4438'

    '''

        @history    18.04.11    Jeongwoo    Add Variable (Name, Type)

                    18.05.11    Jeongwoo    Declare variable self.color

                    18.05.25    Jeongwoo    Call setColor() method

                    18.05.30    Jeongwoo    Add self variables (parentSymbol, childSymbol)

    '''

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

        import uuid

        QGraphicsSvgItem.__init__(self)

        QEngineeringAbstractItem.__init__(self)

        self.setFlags(QGraphicsItem.ItemIsSelectable|QGraphicsItem.ItemIsFocusable)

                      #QGraphicsItem.ItemIsMovable)

        self.uid = uuid.uuid4() if uid is None else uid

        self.name = ''

        self.type = ''

        self.angle = 0

        self.origin = None

        self.loc = None

        self.size = None

        self.connectors = []

        self.attrs = [] # attributes

        self._owner = None

        self.parentSymbol = ''

        self.childSymbol = ''

        self.hasInstrumentLabel = 0

        self.setAcceptHoverEvents(True)

        self.setAcceptedMouseButtons(Qt.LeftButton)

        self.setAcceptTouchEvents(True)

        self.isClick = False

        self.currentCursor = 0

        self.transfer = Transfer()

        try:

            f = QFile(path)

            f.open(QIODevice.ReadOnly)

            array = f.readAll()

            self._document = QDomDocument()

            self._document.setContent(array)

            self._renderer = QSvgRenderer(self._document.toByteArray())

            self.setSharedRenderer(self._renderer)

            self.setColor(self._color)

        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))

        finally:

            f.close()

        self.setZValue(SymbolSvgItem.ZVALUE)

    '''

        @breif  getter owner

        @author humkyung

        @date   2018.05.10

    '''

    @property

    def owner(self):

        return self._owner

    '''

        @brief  setter owner

        @author humkyung

        @date   2018.05.10

        @history    2018.05.17  Jeongwoo    Add Calling setColor if self._owner is None or not

    '''

    @owner.setter

    def owner(self, value):

        self._owner = value

        if self._owner is None:

            self._color = self.DEFAULT_COLOR

        self.setColor(self._color)

    '''

        @brief  build symbol item

        @author humkyung

        @date   2018.05.02

        @history    2018.05.09  Jeongwoo    Clear self.connectors

                    2018.05.30  Jeongwoo    Add parameters (parentSymbol, childSymbol)

    '''

    def buildItem(self, name, type, angle, loc, size, origin, connPts, parentSymbol, childSymbol, hasInstrumentLabel):

        try:

            docData = AppDocData.instance()

            symbolInfo = docData.getSymbolByQuery('name', name)

            self.name = name

            self.type = type

            self.angle = angle

            self.loc = loc

            self.size = size

            self.origin = origin

            originalPoint = symbolInfo.getOriginalPoint().split(',')

            self.symbolOrigin = (float(originalPoint[0]), float(originalPoint[1]))

            # setting connectors

            connectionPoints = symbolInfo.getConnectionPoint().split('/')

            for index in range(len(connectionPoints)):

                split = connectionPoints[index].split(',')

                self.setConnector()

                self.connectors[index].setPos((float(split[0]), float(split[1])))

                self.connectors[index].connectPoint = (float(split[0]), float(split[1]))

                self.connectors[index].sceneConnectPoint = connPts[index] if len(connPts) > index else None

            self.parentSymbol = parentSymbol

            self.childSymbol = childSymbol

            self.hasInstrumentLabel = hasInstrumentLabel

            self.currentPointModeIndex = 0

            '''

            self.connectors.clear()

            center = (loc[0] + size[0]*0.5, loc[1] + size[1]*0.5)

            for pt in self.connPts:

                connector = QEngineeringConnectorItem(self)

                connector.setPos((pt[0] - loc[0], pt[1] - loc[1]))

                connector.setParentItem(self)

                self.connectors.append(connector)

            '''

            self.setToolTip(self.name)

        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))

    '''

        @brief  return bounding box of symbol

        @author humkyung

        @date   2018.04.08

    '''

    def rect(self):

        return self.sceneBoundingRect()

    '''

        @brief  return true if line is able to connect symbol

        @author humkyung

        @date   2018.04.13

    '''

    def isConnectable(self, line, offset,  toler=10):

        for connector in self.connectors:

            dx = connector.sceneConnectPoint[0] - (line[0][0] + offset[0])

            dy = connector.sceneConnectPoint[1] - (line[0][1] + offset[1])

            if (math.sqrt(dx*dx + dy*dy) < toler): return True

            dx = connector.sceneConnectPoint[0] - (line[-1][0] + offset[0])

            dy = connector.sceneConnectPoint[1] - (line[-1][1] + offset[1])

            if (math.sqrt(dx*dx + dy*dy) < toler): return True

        return False

    '''

        @brief      check if symbol and given item is jointed

        @author     humkyung

        @date       2018.07.03

    '''

    def isJointed(self, item, toler=5):

        import math

        from EngineeringLineItem import QEngineeringLineItem

        lhs = []

        for connector in self.connectors:

            lhs.append(connector.sceneConnectPoint)

        if type(item) is QEngineeringLineItem:

            rhs = [item.startPoint(), item.endPoint()]

        elif issubclass(type(item), SymbolSvgItem):

            rhs = []

            for connector in item.connectors:

                rhs.append(connector.sceneConnectPoint)

        else:

            rhs = []

        for pt in lhs:

            for _pt in rhs:

                dx = _pt[0] - pt[0]

                dy = _pt[1] - pt[1]

                if math.sqrt(dx*dx + dy*dy) < toler:

                    return True

        return False

    '''

        @brief      connect line and symbol is able to be connected and return line

        @author     humkyung

        @date       2018.04.16

        @history    humkyung 2018.05.08 check if symbol is possible to be connected

                    Jeongwoo 2018.05.15 Connect each symbol and line

    '''

    def connectIfPossible(self, obj, toler=10):

        from shapely.geometry import Point

        from EngineeringLineItem import QEngineeringLineItem

        res = []

        if type(obj) is QEngineeringLineItem:

            startPt = obj.startPoint()

            endPt = obj.endPoint()

            for i in range(len(self.connectors)):

                if (self.connectors[i].connectedItem is None) and (Point(startPt[0], startPt[1]).distance(Point(self.connectors[i].sceneConnectPoint[0], self.connectors[i].sceneConnectPoint[1])) < toler):

                    self.connectors[i].connectedItem = obj 

                    obj.connectors[0].connectedItem = self

                    res.append(obj)

                if (self.connectors[i].connectedItem is None) and (Point(endPt[0], endPt[1]).distance(Point(self.connectors[i].sceneConnectPoint[0], self.connectors[i].sceneConnectPoint[1])) < toler):

                    self.connectors[i].connectedItem = obj

                    obj.connectors[1].connectedItem = self

                    res.append(obj)

        elif issubclass(type(obj), SymbolSvgItem):

            for i in range(len(self.connectors)):

                for j in range(len(obj.connectors)):

                    _pt = Point(obj.connectors[j].sceneConnectPoint[0], obj.connectors[j].sceneConnectPoint[1])

                    if (self.connectors[i].connectedItem is None) and (_pt.distance(Point(self.connectors[i].sceneConnectPoint[0], self.connectors[i].sceneConnectPoint[1])) < toler):

                        self.connectors[i].connectedItem = obj 

                        obj.connectors[j].connectedItem = self

                        res.append(obj)

        return res

    '''

        @brief  get connection point close to given point in tolerance

        @author humkyung

        @dat

    '''

    def getConnectionPointCloseTo(self, pt, toler=10):

        import math

        for connector in self.connectors:

            dx = connector.sceneConnectPoint[0] - pt[0]

            dy = connector.sceneConnectPoint[1] - pt[1]

            if math.sqrt(dx*dx + dy*dy) < toler: return connPt

        return None

    '''

        @brief  return center of symbol

        @author humkyung

        @date   2018.04.08

    '''

    def center(self):

        return self.sceneBoundingRect().center()

    '''

        @brief      highlight connector and attribute

        @authro     humkyung

        @date       2018.05.02

    '''

    def hoverEnterEvent(self, event):

        try:

            self._savedColor = self.getColor()

            self.setColor(SymbolSvgItem.HIGHLIGHT)

            self.currentCursor = int(Qt.OpenHandCursor)

            cursor = QCursor(Qt.OpenHandCursor)

            QApplication.instance().setOverrideCursor(cursor)

            self.update()

            for attr in self.attrs:

                attr.setDefaultTextColor(Qt.red)

                attr.update()

        except Exception as ex:

            from App import App

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

            App.mainWin().addMessage(MessageType.Error, message)

    '''

        @brief      unhighlight connector and attribute

        @author     humkyung

        @date       2018.05.02

        @history    kyouho 2018.07.18 edit ArrowCursor

    '''

    def hoverLeaveEvent(self, event):

        self.setColor(self._savedColor)

        self.currentCursor = int(Qt.ArrowCursor)

        cursor = QCursor(Qt.ArrowCursor)

        QApplication.instance().setOverrideCursor(cursor)

        self.update()

        for attr in self.attrs:

            attr.setDefaultTextColor(Qt.blue)

            attr.update()

    '''

        @brief  change cursor to CrossCursor if mouse point is close to connection point

        @author humkyung

        @date   2018.04.28

    '''

    def hoverMoveEvent(self, event):

        pass

    '''

        scenePos = self.mapToScene(event.pos())

        connPt = self.getConnectionPointCloseTo((scenePos.x(), scenePos.y()), 5)

        if connPt is not None:

            cursor = QCursor(Qt.CrossCursor)

            QApplication.instance().changeOverrideCursor(cursor)

        else:

            cursor = QCursor(Qt.OpenHandCursor)

            QApplication.instance().changeOverrideCursor(cursor)

        self.update()

    '''

    '''

        @brief      Mouse Press Event

        @author     Jeongwoo

        @date       18.04.11

        @history    kyouho 2018.07.18 add isClick logic

    '''

    def mousePressEvent(self, event):

        if event.buttons() == Qt.LeftButton:

            self.clicked.emit(self)

            #Type에 따라서 isClick 조절 설정 가능

            self.isClick = True

    '''

        @brief      Mouse Release Event

        @author     kyouho

        @date       18.07.17

    '''

    def mouseReleaseEvent(self, event):

        super().mouseReleaseEvent(event)

        if self.isClick:

            self.isClick = False

            self.currentCursor = int(Qt.ArrowCursor)

            cursor = QCursor(Qt.ArrowCursor)

            QApplication.instance().setOverrideCursor(cursor)

            self.update()

            scenePos = self.mapToScene(event.pos())

            result = self.findTextItemInPoint(scenePos)

            if result[0]:

                item = result[1]

                dialog = SelectAttributeDialog.QSelectAttributeDialog(None, self.type)

                dialog.exec_()

                if dialog.dialogResult and dialog.selectedAttribute:

                    attrStr = dialog.selectedAttribute

                    item.attribute = attrStr

                    # 기존 연결되있는 다른 SymbolItem의 Attr 제거

                    self.removeAttr(item)

                    # 자기 자신의 똑같은 attribute 제거

                    self.removeSelfAttr(attrStr)

                    self.attrs.append(item)

    '''

        @brief      Mouse Move Event

        @author     kyouho

        @date       18.07.17

    '''

    def removeSelfAttr(self, attributeName):

        for attr in self.attrs:

            if attr.attribute == attributeName:

                self.attrs.remove(attr)

    '''

        @brief      Mouse Move Event

        @author     kyouho

        @date       18.07.17

    '''

    def mouseMoveEvent(self, event):

        if self.isClick and self.currentCursor != int(Qt.ClosedHandCursor):

            self.currentCursor = int(Qt.ClosedHandCursor)

            cursor = QCursor(Qt.ClosedHandCursor)

            QApplication.instance().setOverrideCursor(cursor)

            self.update()

    '''

        @brief      Find TextItem contain Point

        @author     kyouho

        @date       18.07.17

    '''

    def findTextItemInPoint(self, point):

        from EngineeringTextItem import QEngineeringTextItem

        scene = self.scene()

        for item in scene.items():

            if type(item) is QEngineeringTextItem:

                if self.isOverlapItemAndPoint(item, point):

                    return (True, item)

        return (False,)

    '''

        @brief      Check Overlap

        @author     kyouho

        @date       18.07.17

    '''

    def isOverlapItemAndPoint(self, item, point):

        x = point.x()

        y = point.y()

        loc = item.loc

        size = item.size

        if loc[0] <= x and loc[0] + size[0] >= x and loc[1] <= y and loc[1] + size[1] >= y:

            return True

        else:

            return False

    '''

        @brief      Remove Attr

        @author     kyouho

        @date       18.07.17

    '''

    def removeAttr(self, item):

        scene = self.scene()

        for symbol in scene.items():

            if type(symbol) is SymbolSvgItem:

                for attr in symbol.attrs:

                    if attr == item:

                        symbol.attrs.remove(item)

    '''

        @brief  remove item when user press delete key

        @author humkyung

        @date   2018.04.23

        @history    2018.05.17  Jeongwoo    Add if-statement and move 'break'

                    2018.05.25  Jeongwoo    Seperate delete item method

    '''

    def keyPressEvent(self, event):

        if event.key() == Qt.Key_Delete:

            self.deleteSvgItemFromScene()

        elif event.key() == Qt.Key_R:

            self.rotateSymbol()

        elif event.key() == Qt.Key_O:

            self.changeStandardPoint()

        elif event.key() == Qt.Key_C:

            self.changeConnPoint()

    '''

        @brief      connect attribute

        @author     humkyung

        @date       2018.05.02

        @history    humkyung 2018.05.09 append only nearest size attribute

    '''

    def connectAttribute(self, attributes):

        import math

        from QEngineeringSizeTextItem import QEngineeringSizeTextItem

        self.attrs.clear()

        dist = max(self.sceneBoundingRect().height(), self.sceneBoundingRect().width())

        center = self.sceneBoundingRect().center()

        minDist = None

        selected = None

        for attr in attributes:

            if type(attr) is QEngineeringSizeTextItem:

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

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

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

                if (length < dist*2) and (minDist is None or length < minDist):

                    minDist = length

                    selected = attr

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

    '''

        @Auther     Yecheol

        @Date       2018.07.06

        @History    add Get not connected Attribute Item

                    humkyung 2018.07.23 fixed the code

    '''

    def getConnectedLabel(self, worker):

        import math

        from QEngineeringInstrumentItem import QEngineeringInstrumentItem

        findSymbols = [symbol for symbol in worker.graphicsView.scene.items() if type(symbol) is QEngineeringInstrumentItem]

        for symbol in findSymbols:

            isConnected = False

            for connector in symbol.connectors:

                if connector.connectedItem is not None:

                     isConnected = True

                     break

            if isConnected == False:

                dx = symbol.origin[0] - self.origin[0]

                dy = symbol.origin[1] - self.origin[1]

                if math.sqrt(dx*dx + dy*dy) < 200:

                    self.attrs.append(symbol)

    '''

        @brief      get attribute

        @author     humkyung

        @date       2018.06.14

        @history    kyouho  2018.07.18  Add only attr QEngineeringTextItem

    '''

    def getAttributes(self):

        from EngineeringTextItem import QEngineeringTextItem

        from QEngineeringInstrumentItem import QEngineeringInstrumentItem

        attrs = {}

        # 해당 Type의 attribute setting

        docData = AppDocData.instance()

        symbolAttrs = docData.getSymbolAttribute(self.type)

        for attr in symbolAttrs:

            attrs[attr] = ''

        for attr in self.attrs:

            if type(attr) is QEngineeringTextItem:

                attrs[attr.attribute] = attr.text()

            elif type(attr) is QEngineeringInstrumentItem:

                attrs['Label'] = '{}'.format(attr)

        return attrs

    '''

        @brief      generate xml code

        @author     humkyung

        @date       2018.04.23

        @history    humkyung 2018.04.25 add angle xml node

                    humkyung 2018.04.27 add originalpoint xml node

                    humkyung 2018.05.02 add attribute of symbol

                    Jeongwoo 2018.05.30 add attribute of symbol (parentSymbol, childSymbol, type, connectionPoint)

                    yecheol  2018.07.11 add attribute of symbol (hasInstrumentLabel)

                    humkyung 2018.07.20 write owner's uid to xml

                    humkyung 2018.07.23 write connected item's uid to xml

                    kyouho  2018.07.31 

    '''

    def toXml(self):

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

        try:

            node = Element('SYMBOL')

            uidNode = Element('UID')

            uidNode.text = str(self.uid)

            node.append(uidNode)

            nameNode = Element('NAME')

            nameNode.text = self.name

            node.append(nameNode)

            typeNode = Element('TYPE')

            typeNode.text = self.type

            node.append(typeNode)

            # write owner's uid to xml

            if self.owner is not None:

                ownerNode = Element('OWNER')

                ownerNode.text = str(self.owner.uid)

                node.append(ownerNode)

            # up to here

            originNode = Element('ORIGINALPOINT')

            originNode.text = '{},{}'.format(self.origin[0], self.origin[1])

            node.append(originNode)

            connectorsNode = Element('CONNECTORS')

            for connector in self.connectors:

                connectorNode = Element('CONNECTOR')

                connectedItemNode = Element('CONNECTEDITEM')

                connectedItemNode.text = str(connector.connectedItem.uid) if connector.connectedItem is not None else 'None'

                connectPointNode = Element('CONNECTPOINT')

                connectPointNode.text = str(connector.connectPoint[0]) + ',' + str(connector.connectPoint[1])

                sceneConnectPointNode = Element('SCENECONNECTPOINT')

                sceneConnectPointNode.text = str(connector.sceneConnectPoint[0]) + ',' + str(connector.sceneConnectPoint[1])

                connectorNode.append(connectedItemNode)

                connectorNode.append(connectPointNode)

                connectorNode.append(sceneConnectPointNode)

                connectorsNode.append(connectorNode)

            node.append(connectorsNode)

            connectionNode = Element('CONNECTIONPOINT')

            connectionPoint = ''

            if self.connectors is not None:

                for index in range(len(self.connectors)):

                    if index != 0:

                        connectionPoint = connectionPoint + "/"

                    connTuple = self.connectors[index].sceneConnectPoint

                    connectionPoint = connectionPoint + str(connTuple[0]) + "," + str(connTuple[1])

            connectionNode.text = connectionPoint

            node.append(connectionNode)

            rect = self.sceneBoundingRect()

            locNode = Element('LOCATION')

            locNode.text = '{},{}'.format(self.loc[0], self.loc[1])

            node.append(locNode)

            sizeNode = Element('SIZE')

            sizeNode.text = '{},{}'.format(rect.width(), rect.height())

            node.append(sizeNode)

            angleNode = Element('ANGLE')

            angleNode.text = str(self.angle)

            node.append(angleNode)

            parentSymbolNode = Element('PARENT')

            parentSymbolNode.text = str(self.parentSymbol)

            node.append(parentSymbolNode)

            childSymbolNode = Element('CHILD')

            childSymbolNode.text = str(self.childSymbol)

            node.append(childSymbolNode)

            hasInstrumentLabelNode = Element('HASINSTRUMENTLABEL')

            hasInstrumentLabelNode.text = str(self.hasInstrumentLabel)

            node.append(hasInstrumentLabelNode)

            attributesNode = Element('SYMBOLATTRIBUTES')

            for attr in self.attrs:

                attributeNode = Element('SYMBOLATTRIBUTE')

                attributeNode.text = str(attr.uid)

                attributesNode.append(attributeNode)

            node.append(attributesNode)

            currentPointModeIndexNode = Element('CURRENTPOINTMODEINDEX')

            currentPointModeIndexNode.text = str(self.currentPointModeIndex)

            node.append(currentPointModeIndexNode)

        except Exception as ex:

            return str(self.uid)

            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   2018.05.02

    '''

    def toXmlAsAttribute(self, parent):

        for attr in self.attrs:

            parent.append(attr.toXml(self))

    '''

        @brief      parse xml code

        @author     humkyung

        @date       2018.07.20

        @history    humkyung 2018.07.20 parse uid from xml node

                    humkyung 2018.07.23 parse connected item's uid from xml node

                    kyouho  2018.07.31 

    '''

    @staticmethod 

    def fromXml(node):

        import uuid

        item = [None, None]

        try:

            uidNode = node.find('UID')

            uid = uidNode.text if uidNode is not None else uuid.uuid4() # generate UUID

            pt = [float(x) for x in node.find('LOCATION').text.split(',')]

            size = [float(x) for x in node.find('SIZE').text.split(',')]

            name = node.find('NAME').text

            angle = float(node.find('ANGLE').text)

            type = node.find('TYPE').text

            origin = [float(x) for x in node.find('ORIGINALPOINT').text.split(',')]

            connPts = []

            if node.find('CONNECTIONPOINT').text is not None:

                connPts = [(float(x.split(',')[0]), float(x.split(',')[1])) for x in node.find('CONNECTIONPOINT').text.split('/')]

            baseSymbol = node.find('PARENT').text

            childSymbolNode = node.find('CHILD')

            childSymbol = ''

            if childSymbolNode is not None:

                childSymbol = childSymbolNode.text

            ownerNode = node.find('OWNER')

            owner = ownerNode.text if ownerNode is not None else None

            hasInstrumentLabelNode = node.find('HASINSTRUMENTLABEL')

            hasInstrumentLabel = hasInstrumentLabelNode.text if hasInstrumentLabelNode is not None else 'False'

            project = AppDocData.instance().getCurrentProject()

            svgFilePath = os.path.join(project.getSvgFilePath(), type, name + '.svg')

            if os.path.isfile(svgFilePath):

                item[0] = SymbolSvgItem.createItem(type, svgFilePath, uid)

                item[0].buildItem(name, type, angle, pt, size, origin, connPts, baseSymbol, childSymbol, hasInstrumentLabel)

                connectors = node.find('CONNECTORS')

                if connectors is not None:

                    iterIndex = 0

                    for connector in connectors.iter('CONNECTOR'):

                        connectedItemStr = connector.find('CONNECTEDITEM').text

                        connectPointStr = connector.find('CONNECTPOINT').text.split(',')

                        sceneConnectPointStr = connector.find('SCENECONNECTPOINT').text.split(',')

                        item[0].connectors[iterIndex].connectedItem = connectedItemStr if connectedItemStr != 'None' else None

                        item[0].connectors[iterIndex].connectPoint = (float(connectPointStr[0]), float(connectPointStr[1]))

                        item[0].connectors[iterIndex].sceneConnectPoint = (float(sceneConnectPointStr[0]), float(sceneConnectPointStr[1]))

                        iterIndex += 1

                attributes = node.find('SYMBOLATTRIBUTES')

                if attributes is not None:

                    for attr in attributes.iter('SYMBOLATTRIBUTE'):

                        item[0].attrs.append(attr.text)

                currentPointModeIndex = node.find('CURRENTPOINTMODEINDEX')

                if currentPointModeIndex is not None:

                    item[0].currentPointModeIndex = int(currentPointModeIndex.text)

                item[1] = owner

        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 item

    '''

        @brief      create item corresponding to given type

        @author     humkyung

        @date       2018.05.02

        @history    2018.05.08  Jeongwoo    Change type name (Piping OPC''S → Piping OPC's)

                    humkyung 2018.05.10 change symbol's color to blue

                    humkyung 2018.07.19 create nozzle instance if type is 'Nozzles'

    '''

    @staticmethod

    def createItem(type, path, uid=None):

        from QEngineeringOPCItem import QEngineeringOPCItem

        from QEngineeringEquipmentItem import QEngineeringEquipmentItem

        from QEngineeringInstrumentItem import QEngineeringInstrumentItem

        from EngineeringNozzleItem import QEngineeringNozzleItem

        from AppDocData import AppDocData

        docData = AppDocData.instance()

        item = None

        cateogry = docData.getSymbolCategoryByType(type)

        if type == "Piping OPC's":

            item = QEngineeringOPCItem(path, uid)

        elif cateogry == 'Equipment':

            item = QEngineeringEquipmentItem(path, uid)

        elif cateogry == 'Instrumentation':

            item = QEngineeringInstrumentItem(path, uid)

        elif type == 'Nozzles':

            item = QEngineeringNozzleItem(path, uid)

        else:

            item = SymbolSvgItem(path, uid)

        return item

    '''

        @brief      change svg's color

        @author     humkyung

        @date       2018.05.10

        @history    2018.05.11  Jeongwoo    Override QEngineeringAbstractItem's

                    humkyung 2018.05.13 update after change color

    '''

    def setColor(self, color):

        self._color = color

        self.changeAttributes('fill', color)

        self.changeAttributes('stroke', color)

        self.renderer().load(self._document.toByteArray())

        self.update()

    '''

        @brief      Get Color code

        @author     Jeongwoo

        @date       2018.05.17

    '''

    def getColor(self):

        return self._color

    '''

        @brief  change attributes

        @author humkyung

        @date   2018.05.10

    '''

    def changeAttributes(self, attName, attValue):

        root = self._document.documentElement()

        node = root.firstChild()

        while not node.isNull():

            if node.isElement():

                element = node.toElement()

                if element.hasAttribute(attName):

                    element.setAttribute(attName, attValue)

                if element.hasChildNodes():

                    recursiveChangeAttributes(element.firstChild(), attName, attValue)

            node = node.nextSibling()

    '''

        @brief  change attribute

        @author humkyung

        @date   2018.05.10

    '''

    def recursiveChangeAttributes(self, node, attName, attValue):

        while not node.isNull():

            if node.isElement():

                element = node.toElement()

                if element.hasAttribute(attName):

                    element.setAttribute(attName, attValue)

                if node.hasChildNodes():

                    recursiveChangeAttributes(node.firstChild(), attName, attValue)

            node = node.nextSibling()

    '''

        @brief  draw rect when item is selected

        @author humkyung

        @date   2018.07.07

    '''

    def drawFocusRect(self, painter):

        self.focuspen = QPen(Qt.DotLine)

        self.focuspen.setColor(Qt.black)

        self.focuspen.setWidthF(1.5)

        hilightColor = QColor(255, 0, 0, 127)

        painter.setBrush(QBrush(hilightColor))

        painter.setPen(self.focuspen)

        painter.drawRect(self.boundingRect())

    '''

        @brief  override paint(draw connection points)

        @author humkyung

        @date   2018.04.21

    '''

    def paint(self, painter, options=None, widget=None):

        painter.setClipRect(options.exposedRect)

        QGraphicsSvgItem.paint(self, painter, options, widget)

        if self.isSelected():

            self.drawFocusRect(painter)

    '''

        @brief      Add Svg Item into ImageViewer's Scene

        @author     Jeongwoo

        @date       2018.05.03

        @history    add connectors which's parent is symbol

                    kyouho  2018.07.30  remove connectors logic

    '''

    def addSvgItemToScene(self, scene):

        transform = QTransform()

        transform.translate(self.loc[0] + self.symbolOrigin[0], self.loc[1] + self.symbolOrigin[1])

        transform.rotateRadians(-self.angle)

        currentPoint = self.getCurrentPoint()

        transform.translate(-currentPoint[0], -currentPoint[1])

        self.setTransform(transform)

        scene.addItem(self)

    '''

        @brief      

        @author     humkyung

        @date       2018.07.27

    '''

    def onConnectorPosChaned(self, connector):

        pass

    '''

        @brief      set connector

        @author     kyouho

        @date       2018.07.26

    '''

    def setConnector(self):

        connector = QEngineeringConnectorItem(self)

        connector.setParentItem(self)

        self.connectors.append(connector)

    '''

    '''

    def refreshConnector(self):

        for connector in self.connectors:

            connector.buildItem()

    '''

        @brief      Delete svg item

        @author     Jeongwoo

        @date       2018.05.25

    '''

    def deleteSvgItemFromScene(self):

        for connector in self.connectors:

            if connector.connectedItem is not None:

                connector.connectedItem.removeSymbol(self)

                break

        self.transfer.onRemoved.emit(self)

    '''

        @brief      Return real item position

        @author     Jeongwoo

        @date       2018.05.25

    '''

    def boundingRectOnScene(self):

        rect = self.boundingRect()

        rect.moveTo(self.loc[0], self.loc[1])

        return rect

    '''

        @brief      rotate Symbol

        @author     kyouho

        @date       2018.07.24

    '''

    def rotateSymbol(self):

        #degree 0

        if 0 == self.angle:

            self.angle = 1.57

        #degree 90

        elif (1.57 == self.angle):

            self.angle = 3.14

        #degree 180

        elif 3.14 == self.angle:

            self.angle = 4.71

        #degree 270

        elif 4.71 == self.angle :

            self.angle = 0

        currentPoint = self.getCurrentPoint()

        self.reSettingSymbol(currentPoint, self.angle)

    '''

        @brief      resetting rotate Symbol

        @author     kyouho

        @date       2018.07.24

    '''

    def reSettingSymbol(self, standardPoint, angle):

        transform = QTransform()

        transform.translate(self.loc[0] + self.symbolOrigin[0], self.loc[1] + self.symbolOrigin[1])

        transform.rotateRadians(-angle)

        transform.translate(-standardPoint[0], -standardPoint[1])

        self.setTransform(transform)

        from EngineeringLineItem import QEngineeringLineItem

        for connector in self.connectors:

            if connector.connectedItem is not None and type(connector.connectedItem) == QEngineeringLineItem:

                line = connector.connectedItem

                line.reDrawLine(self, connector.center())

    '''

        @brief      change Conn point 

        @author     kyouho

        @date       2018.07.25

    '''

    def changeConnPoint(self):

        if len(self.connectors) == 2:

            conn1Item = self.connectors[0].connectedItem

            conn2Item = self.connectors[1].connectedItem

            self.connectors[0].connectedItem = conn2Item

            self.connectors[1].connectedItem = conn1Item

            currentPoint = self.getCurrentPoint()

            self.reSettingSymbol(currentPoint, self.angle)

    '''

        @brief      change standard point

        @author     kyouho

        @date       2018.07.24

    '''

    def changeStandardPoint(self):

        connPtsCount = len(self.connectors)

        if self.currentPointModeIndex < connPtsCount:

            self.currentPointModeIndex += 1

        else:

            self.currentPointModeIndex = 0

        currentPoint = self.getCurrentPoint()

        self.reSettingSymbol(currentPoint, self.angle)

    '''

        @brief      get standard point

        @author     kyouho

        @date       2018.07.25

    '''

    def getCurrentPoint(self):

        pointList = []

        pointList.append(self.symbolOrigin)

        for connector in self.connectors:

            pointList.append(connector.connectPoint)

        return pointList[self.currentPointModeIndex]

    '''

        @brief      심볼 회전 시 서로 다른 기준점으로 회전하기 때문에 기준점을 이후 개발한 SymbolSvgItem 기준의 회전좌표로 이동하기 위해서 만듬 (loc 기준으로 회전해야함)

        @author     kyouho

        @date       18.08.06

    '''

    def reCalculationRotatedItem(self):

        transform = QTransform()

        transform.translate(self.loc[0] + self.symbolOrigin[0], self.loc[1] + self.symbolOrigin[1])

        transform.rotateRadians(-self.angle)

        currentPoint = self.getCurrentPoint()

        transform.translate(-currentPoint[0], -currentPoint[1])

        # 시작점을 구하기 위해서

        goPoint = transform.map(QPoint(self.symbolOrigin[0], self.symbolOrigin[1]))

        self.loc = [self.loc[0] + self.origin[0] - goPoint.x(), self.loc[1] + self.origin[1] - goPoint.y()]

def recursiveChangeAttributes(node, attName, attValue):

    while not node.isNull():

        if node.isElement():

            element = node.toElement()

            if element.hasAttribute(attName):

                element.setAttribute(attName, attValue)

            if node.hasChildNodes():

                recursiveChangeAttributes(node.firstChild(), attName, attValue)

        node = node.nextSibling()

'''

    @brief      The class transfer pyqtSignal Event. Cause Subclass of QGraphicsRectItem can't use pyqtSignal

    @author     Jeongwoo

    @date       2018.06.18

'''

class Transfer(QObject):

    onRemoved = pyqtSignal(QGraphicsItem)

    def __init__(self, parent = None):

        QObject.__init__(self, parent)

if __name__ == '__main__':

    f = QFile('d:/Projects/DTIPID/DTI_PID/DTI_PID/SG_TEST/svg/ANGLE VALVE.svg')

    f.open(QIODevice.ReadOnly)

    array = f.readAll()

    document = QDomDocument()

    document.setContent(array)

    root = document.documentElement()

    node = root.firstChild()

    while not node.isNull():

        if node.isElement():

            element = node.toElement()

            if element.hasAttribute('fill'):

                element.setAttribute('fill', '#FFFFF')

            if element.hasChildNodes():

                recursiveChangeAttributes(element.firstChild(), 'fill', '#FFFFF')

        node = node.nextSibling()