Issue
I'm creating a subclass of QGraphicsItem, and this subclass has different places that the user can click. My idea is for each component clicked to create a subclass of QGraphicsItem with mousePressEvent replaced. The problem is how can I merge this component into a subclass of QGraphicItem.
Here's the code I'm trying, but I do not know how to show all the components in the paint method.
# -*- 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 do 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)
Solution
Thanks @SimonHibbs , the solution was to call textComponent.setParentItem(self) and ellipseComponent.setParentItem(self) on init method.
Solution:
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)
Answered By - E.G. Cortes
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