QGraphicsItem을 paint() 메서드 내에서 페인트 할 수 있습니까?

Question

QGraphicsItem의 하위 클래스를 만들고 있는데이 하위 클래스는 사용자가 클릭 할 수있는 다른 장소가 있습니다. 제 생각은 mousePressEvent를 대체하여 QGraphicsItem의 하위 클래스를 만들기 위해 클릭 한 각 구성 요소에 대한 아이디어입니다. 문제는이 구성 요소를 QGraphicItem의 하위 클래스로 병합 할 수있는 방법입니다.

다음 코드는 시도하고 있지만 페인트 메서드의 모든 구성 요소를 표시하는 방법을 모르겠습니다.

# -*- coding: utf-8 -*- 
from PySide import QtGui, QtCore 

class GraphicItemMain(QtGui.QGraphicsItem): 

    def __init__(self, x, y): 
     super(GraphicItemMain, self).__init__() 
     self.setFlag(QtGui.QGraphicsItem.ItemIsMovable, False) 
     self.setFlag(QtGui.QGraphicsItem.ItemIsSelectable, False) 
     self.setFlag(QtGui.QGraphicsItem.ItemIsFocusable, True) 
     self.setAcceptsHoverEvents(True) 
     self.x = x 
     self.y = y 

    def boundingRect(self): 
     return QtCore.QRectF(self.x, self.y, 100, 100) 

    def paint(self, painter, option, widget): 
     textComponent = GraphicItemTextClicked(5+self.x, 5+self.y) 
     ellipseComponent = GraphicItemEllipseClicked(5+self.x, 50+self.y) 
     #How I print this components? 

class GraphicItemTextClicked(QtGui.QGraphicsItem): 

    def __init__(self, x, y): 
     super(GraphicItemTextClicked, self).__init__() 
     self.setFlag(QtGui.QGraphicsItem.ItemIsMovable, False) 
     self.setFlag(QtGui.QGraphicsItem.ItemIsSelectable, False) 
     self.setFlag(QtGui.QGraphicsItem.ItemIsFocusable, True) 
     self.setAcceptsHoverEvents(True) 
     self.x = x 
     self.y = y 

    def mousePressEvent(self, event): 
     #Do something 
     QtGui.QGraphicsItem.mousePressEvent(self, event) 

    def boundingRect(self): 
     return QtCore.QRectF(self.x, self.y, 80, 30) 

    def paint(self, painter, option, widget): 
     painter.setPen(QtGui.QPen(QtGui.QColor(255, 0, 0), 1)) 
     font = QtGui.QFont() 
     font.setPointSize(12) 
     painter.setFont(font) 
     painter.drawText(QtCore.QPointF(3+self.x, self.y), "Same Text") 

class GraphicItemEllipseClicked(QtGui.QGraphicsItem): 

    def __init__(self, x, y): 
     super(GraphicItemEllipseClicked, self).__init__() 
     self.setFlag(QtGui.QGraphicsItem.ItemIsMovable, False) 
     self.setFlag(QtGui.QGraphicsItem.ItemIsSelectable, False) 
     self.setFlag(QtGui.QGraphicsItem.ItemIsFocusable, True) 
     self.setAcceptsHoverEvents(True) 
     self.x = x 
     self.y = y 

    def mousePressEvent(self, event): 
     #Do other thing 
     QtGui.QGraphicsItem.mousePressEvent(self, event) 

    def boundingRect(self): 
     return QtCore.QRectF(self.x, self.y, 25, 25) 

    def paint(self, painter, option, widget): 
     painter.setPen(QtGui.QPen(QtGui.QColor(0, 255, 0), 1)) 
     painter.drawEllipse(self.x, self.y, 25, 25) 

Answer 1

감사 @SimonHibbs이 솔루션은 초기화 방법에 textComponent.setParentItem (자기)와 ellipseComponent.setParentItem (자기)를 호출하는 것이 었습니다.

해결책 :

from PySide import QtGui, QtCore 

class GraphicItemMain(QtGui.QGraphicsItem): 

    def __init__(self, x, y): 
     super(GraphicItemMain, self).__init__() 
     self.setFlag(QtGui.QGraphicsItem.ItemIsMovable, False) 
     self.setFlag(QtGui.QGraphicsItem.ItemIsSelectable, False) 
     self.setFlag(QtGui.QGraphicsItem.ItemIsFocusable, True) 
     self.setAcceptsHoverEvents(True) 
     self.x = x 
     self.y = y 
     textComponent = GraphicItemTextClicked(5+self.x, 5+self.y) 
     textComponent.setParentItem(self) 
     ellipseComponent = GraphicItemEllipseClicked(5+self.x, 50+self.y) 
     ellipseComponent.setParentItem(self) 

    def boundingRect(self): 
     return QtCore.QRectF(self.x, self.y, 100, 100) 

    def paint(self, painter, option, widget): 
     #Paint samething 

class GraphicItemTextClicked(QtGui.QGraphicsItem): 

    def __init__(self, x, y): 
     super(GraphicItemTextClicked, self).__init__() 
     self.setFlag(QtGui.QGraphicsItem.ItemIsMovable, False) 
     self.setFlag(QtGui.QGraphicsItem.ItemIsSelectable, False) 
     self.setFlag(QtGui.QGraphicsItem.ItemIsFocusable, True) 
     self.setAcceptsHoverEvents(True) 
     self.x = x 
     self.y = y 

    def mousePressEvent(self, event): 
     #Do something 
     QtGui.QGraphicsItem.mousePressEvent(self, event) 

    def boundingRect(self): 
     return QtCore.QRectF(self.x, self.y, 80, 30) 

    def paint(self, painter, option, widget): 
     painter.setPen(QtGui.QPen(QtGui.QColor(255, 0, 0), 1)) 
     font = QtGui.QFont() 
     font.setPointSize(12) 
     painter.setFont(font) 
     painter.drawText(QtCore.QPointF(3+self.x, self.y), "Same Text") 

class GraphicItemEllipseClicked(QtGui.QGraphicsItem): 

    def __init__(self, x, y): 
     super(GraphicItemEllipseClicked, self).__init__() 
     self.setFlag(QtGui.QGraphicsItem.ItemIsMovable, False) 
     self.setFlag(QtGui.QGraphicsItem.ItemIsSelectable, False) 
     self.setFlag(QtGui.QGraphicsItem.ItemIsFocusable, True) 
     self.setAcceptsHoverEvents(True) 
     self.x = x 
     self.y = y 

    def mousePressEvent(self, event): 
     #Do other thing 
     QtGui.QGraphicsItem.mousePressEvent(self, event) 

    def boundingRect(self): 
     return QtCore.QRectF(self.x, self.y, 25, 25) 

    def paint(self, painter, option, widget): 
     painter.setPen(QtGui.QPen(QtGui.QColor(0, 255, 0), 1)) 
     painter.drawEllipse(self.x, self.y, 25, 25)