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#############################################################################
##
## Copyright (C) 2016 The Qt Company Ltd.
## Contact: https://www.qt.io/licensing/
##
## This file is part of the test suite of Qt for Python.
##
## $QT_BEGIN_LICENSE:GPL-EXCEPT$
## Commercial License Usage
## Licensees holding valid commercial Qt licenses may use this file in
## accordance with the commercial license agreement provided with the
## Software or, alternatively, in accordance with the terms contained in
## a written agreement between you and The Qt Company. For licensing terms
## and conditions see https://www.qt.io/terms-conditions. For further
## information use the contact form at https://www.qt.io/contact-us.
##
## GNU General Public License Usage
## Alternatively, this file may be used under the terms of the GNU
## General Public License version 3 as published by the Free Software
## Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
## included in the packaging of this file. Please review the following
## information to ensure the GNU General Public License requirements will
## be met: https://www.gnu.org/licenses/gpl-3.0.html.
##
## $QT_END_LICENSE$
##
#############################################################################
'''Basic test cases for QGraphicsScene'''
import unittest
import gc
from PySide2.QtCore import QPointF
from PySide2.QtGui import QPolygonF, QPixmap, QPainterPath, QTransform
from PySide2.QtWidgets import QApplication, QPushButton
from PySide2.QtWidgets import QGraphicsScene
from PySide2.QtWidgets import QGraphicsEllipseItem, QGraphicsLineItem
from PySide2.QtWidgets import QGraphicsPathItem, QGraphicsPixmapItem
from PySide2.QtWidgets import QGraphicsPolygonItem, QGraphicsRectItem
from PySide2.QtWidgets import QGraphicsSimpleTextItem, QGraphicsTextItem
from PySide2.QtWidgets import QGraphicsProxyWidget
from helper import UsesQApplication
class Constructor(unittest.TestCase):
'''QGraphicsScene constructor'''
def testConstructor(self):
#QGraphicsScene constructor
obj = QGraphicsScene()
self.assertTrue(isinstance(obj, QGraphicsScene))
class ConstructorWithRect(unittest.TestCase):
'''QGraphicsScene qrect constructor and related sizes'''
def setUp(self):
#Acquire resources
# PyQt4 doesn't accept a QRect as argument to constructor
self.scene = QGraphicsScene(0, 200, 150, 175)
def tearDown(self):
#Release resources
del self.scene
def testHeight(self):
#QGraphicsScene.height()
self.assertEqual(self.scene.height(), 175)
def testWidth(self):
#QGraphicsScene.width()
self.assertEqual(self.scene.width(), 150)
class AddItem(UsesQApplication):
'''Tests for QGraphicsScene.add*'''
qapplication = True
def setUp(self):
#Acquire resources
super(AddItem, self).setUp()
self.scene = QGraphicsScene()
# While the scene does not inherits from QWidget, requires
# an application to make the internals work.
def tearDown(self):
#Release resources
del self.scene
super(AddItem, self).tearDown()
def testEllipse(self):
#QGraphicsScene.addEllipse
item = self.scene.addEllipse(100, 100, 100, 100)
self.assertTrue(isinstance(item, QGraphicsEllipseItem))
def testLine(self):
#QGraphicsScene.addLine
item = self.scene.addLine(100, 100, 200, 200)
self.assertTrue(isinstance(item, QGraphicsLineItem))
def testPath(self):
#QGraphicsScene.addPath
item = self.scene.addPath(QPainterPath())
self.assertTrue(isinstance(item, QGraphicsPathItem))
def testPixmap(self):
#QGraphicsScene.addPixmap
item = self.scene.addPixmap(QPixmap())
self.assertTrue(isinstance(item, QGraphicsPixmapItem))
def testPolygon(self):
#QGraphicsScene.addPolygon
points = [QPointF(0, 0), QPointF(100, 100), QPointF(0, 100)]
item = self.scene.addPolygon(QPolygonF(points))
self.assertTrue(isinstance(item, QGraphicsPolygonItem))
def testRect(self):
#QGraphicsScene.addRect
item = self.scene.addRect(100, 100, 100, 100)
self.assertTrue(isinstance(item, QGraphicsRectItem))
def testSimpleText(self):
#QGraphicsScene.addSimpleText
item = self.scene.addSimpleText('Monty Python 42')
self.assertTrue(isinstance(item, QGraphicsSimpleTextItem))
def testText(self):
#QGraphicsScene.addText
item = self.scene.addText('Monty Python 42')
self.assertTrue(isinstance(item, QGraphicsTextItem))
def testWidget(self):
#QGraphicsScene.addWidget
# XXX: printing some X11 error when using under PyQt4
item = self.scene.addWidget(QPushButton())
self.assertTrue(isinstance(item, QGraphicsProxyWidget))
class ItemRetrieve(UsesQApplication):
'''Tests for QGraphicsScene item retrieval methods'''
qapplication = True
def setUp(self):
#Acquire resources
super(ItemRetrieve, self).setUp()
self.scene = QGraphicsScene()
self.topleft = QGraphicsRectItem(0, 0, 100, 100)
self.topright = QGraphicsRectItem(100, 0, 100, 100)
self.bottomleft = QGraphicsRectItem(0, 100, 100, 100)
self.bottomright = QGraphicsRectItem(100, 100, 100, 100)
self.items = [self.topleft, self.topright, self.bottomleft,
self.bottomright]
for item in self.items:
self.scene.addItem(item)
def tearDown(self):
#Release resources
del self.scene
super(ItemRetrieve, self).tearDown()
def testItems(self):
#QGraphicsScene.items()
items = self.scene.items()
for i in items:
self.assertTrue(i in self.items)
def testItemAt(self):
#QGraphicsScene.itemAt()
self.assertEqual(self.scene.itemAt(50, 50, QTransform()), self.topleft)
self.assertEqual(self.scene.itemAt(150, 50, QTransform()), self.topright)
self.assertEqual(self.scene.itemAt(50, 150, QTransform()), self.bottomleft)
self.assertEqual(self.scene.itemAt(150, 150, QTransform()), self.bottomright)
class TestGraphicsGroup(UsesQApplication):
def testIt(self):
scene = QGraphicsScene()
i1 = QGraphicsRectItem()
scene.addItem(i1)
i2 = QGraphicsRectItem(i1)
i3 = QGraphicsRectItem()
i4 = QGraphicsRectItem()
group = scene.createItemGroup((i2, i3, i4))
scene.removeItem(i1)
del i1 # this shouldn't delete i2
self.assertEqual(i2.scene(), scene)
scene.destroyItemGroup(group)
self.assertRaises(RuntimeError, group.type)
if __name__ == '__main__':
unittest.main()
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