def __init__(self, parent=None, title='', animationDuration=300):
"""
References:
# Adapted from c++ version
http://stackoverflow.com/questions/32476006/how-to-make-an-expandable-collapsable-section-widget-in-qt
"""
super(Spoiler, self).__init__(parent=parent)
self.animationDuration = 300
self.toggleAnimation = QtCore.QParallelAnimationGroup()
self.contentArea = QtWidgets.QScrollArea()
self.headerLine = QtWidgets.QFrame()
self.toggleButton = QtWidgets.QToolButton()
self.mainLayout = QtWidgets.QGridLayout()
toggleButton = self.toggleButton
toggleButton.setStyleSheet("QToolButton { border: none; }")
toggleButton.setToolButtonStyle(QtCore.Qt.ToolButtonTextBesideIcon)
toggleButton.setArrowType(QtCore.Qt.RightArrow)
toggleButton.setText(str(title))
toggleButton.setCheckable(True)
toggleButton.setChecked(False)
headerLine = self.headerLine
headerLine.setFrameShape(QtWidgets.QFrame.HLine)
headerLine.setFrameShadow(QtWidgets.QFrame.Sunken)
headerLine.setSizePolicy(QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Maximum)
self.contentArea.setStyleSheet("QScrollArea { background-color: white; border: none; }")
self.contentArea.setSizePolicy(QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Fixed)
# start out collapsed
self.contentArea.setMaximumHeight(0)
self.contentArea.setMinimumHeight(0)
# let the entire widget grow and shrink with its content
toggleAnimation = self.toggleAnimation
toggleAnimation.addAnimation(QtCore.QPropertyAnimation(self, b"minimumHeight"))
toggleAnimation.addAnimation(QtCore.QPropertyAnimation(self, b"maximumHeight"))
toggleAnimation.addAnimation(QtCore.QPropertyAnimation(self.contentArea, b"maximumHeight"))
# don't waste space
mainLayout = self.mainLayout
mainLayout.setVerticalSpacing(0)
mainLayout.setContentsMargins(0, 0, 0, 0)
row = 0
mainLayout.addWidget(self.toggleButton, row, 0, 1, 1, QtCore.Qt.AlignLeft)
mainLayout.addWidget(self.headerLine, row, 2, 1, 1)
row += 1
mainLayout.addWidget(self.contentArea, row, 0, 1, 3)
self.setLayout(self.mainLayout)
def start_animation(checked):
arrow_type = QtCore.Qt.DownArrow if checked else QtCore.Qt.RightArrow
direction = QtCore.QAbstractAnimation.Forward if checked else QtCore.QAbstractAnimation.Backward
toggleButton.setArrowType(arrow_type)
self.toggleAnimation.setDirection(direction)
self.toggleAnimation.start()
self.toggleButton.clicked.connect(start_animation)
def __init__(self, title="", parent=None):
super(CollapsibleBox, self).__init__(parent)
self.toggle_button = QtWidgets.QToolButton(
text=title, checkable=True, checked=False
)
self.toggle_button.setStyleSheet("QToolButton { border: none; }")
self.toggle_button.setToolButtonStyle(
QtCore.Qt.ToolButtonTextBesideIcon
)
self.toggle_button.setArrowType(QtCore.Qt.RightArrow)
self.toggle_button.pressed.connect(self.on_pressed)
self.toggle_animation = QtCore.QParallelAnimationGroup(self)
self.content_area = QtWidgets.QScrollArea(
maximumHeight=0, minimumHeight=0
)
self.content_area.setSizePolicy(
QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Fixed
)
self.content_area.setFrameShape(QtWidgets.QFrame.NoFrame)
lay = QtWidgets.QVBoxLayout(self)
lay.setSpacing(0)
lay.setContentsMargins(0, 0, 0, 0)
lay.addWidget(self.toggle_button)
lay.addWidget(self.content_area)
self.toggle_animation.addAnimation(
QtCore.QPropertyAnimation(self, b"minimumHeight")
)
self.toggle_animation.addAnimation(
QtCore.QPropertyAnimation(self, b"maximumHeight")
)
self.toggle_animation.addAnimation(
QtCore.QPropertyAnimation(self.content_area, b"maximumHeight")
)
