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## Copyright (C) 2016 The Qt Company Ltd.
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## This file is part of the test suite of Qt for Python.
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import unittest

from helper import TimedQApplication
from PySide2.QtCore import Signal, QTimer
from PySide2.QtGui import QPainter
from PySide2.QtWidgets import QPushButton, QStyleOptionButton, QApplication, QStyle

class MyWidget(QPushButton):
    def __init__(self, parent = None):
        QPushButton.__init__(self, parent)
        self._painted = False

    def _emitPainted(self):
        self.paintReceived.emit()

    def paintEvent(self, e):
        p = QPainter(self)
        style = QApplication.style()
        option = QStyleOptionButton()
        style.drawControl(QStyle.CE_PushButton, option, p)
        self._painted = True
        QTimer.singleShot(0, self._emitPainted)

    paintReceived = Signal()

class TestBug919(TimedQApplication):
    def setUp(self):
        TimedQApplication.setUp(self, 2000)

    def testFontInfo(self):
        w = MyWidget()
        w.paintReceived.connect(self.app.quit)
        w.show()
        self.app.exec_()
        self.assertTrue(w._painted)

if __name__ == '__main__':
    unittest.main()