class CustomProxy(QGraphicsProxyWidget):
def __init__(self, parent=None, wFlags=0):
super(CustomProxy, self).__init__(parent, wFlags)
self.popupShown = False
self.currentPopup = None
self.timeLine = QTimeLine(250, self)
self.timeLine.valueChanged.connect(self.updateStep)
self.timeLine.stateChanged.connect(self.stateChanged)
def boundingRect(self):
return QGraphicsProxyWidget.boundingRect(self).adjusted(0, 0, 10, 10)
def paintWindowFrame(self, painter, option, widget):
color = QColor(0, 0, 0, 64)
r = self.windowFrameRect()
right = QRectF(r.right(), r.top() + 10, 10, r.height() - 10)
bottom = QRectF(r.left() + 10, r.bottom(), r.width(), 10)
intersectsRight = right.intersects(option.exposedRect)
intersectsBottom = bottom.intersects(option.exposedRect)
if intersectsRight and intersectsBottom:
path = QPainterPath()
path.addRect(right)
path.addRect(bottom)
painter.setPen(Qt.NoPen)
painter.setBrush(color)
painter.drawPath(path)
elif intersectsBottom:
painter.fillRect(bottom, color)
elif intersectsRight:
painter.fillRect(right, color)
super(CustomProxy, self).paintWindowFrame(painter, option, widget)
def hoverEnterEvent(self, event):
super(CustomProxy, self).hoverEnterEvent(event)
self.scene().setActiveWindow(self)
if self.timeLine.currentValue != 1:
self.zoomIn()
def hoverLeaveEvent(self, event):
super(CustomProxy, self).hoverLeaveEvent(event)
if not self.popupShown and (
self.timeLine.direction() != QTimeLine.Backward
or self.timeLine.currentValue() != 0):
self.zoomOut()
def sceneEventFilter(self, watched, event):
if watched.isWindow() and (event.type() == QEvent.UngrabMouse
or event.type() == QEvent.GrabMouse):
self.popupShown = watched.isVisible()
if not self.popupShown and not self.isUnderMouse():
self.zoomOut()
return super(CustomProxy, self).sceneEventFilter(watched, event)
def itemChange(self, change, value):
if change == self.ItemChildAddedChange or change == self.ItemChildRemovedChange:
if change == self.ItemChildAddedChange:
self.currentPopup = value
self.currentPopup.setCacheMode(self.ItemCoordinateCache)
if self.scene() is not None:
self.currentPopup.installSceneEventFilter(self)
elif self.scene() is not None:
self.currentPopup.removeSceneEventFilter(self)
self.currentPopup = None
elif self.currentPopup is not None and change == self.ItemSceneHasChanged:
self.currentPopup.installSceneEventFilter(self)
return super(CustomProxy, self).itemChange(change, value)
def updateStep(self, step):
r = self.boundingRect()
self.setTransform(QTransform() \
.translate(r.width() / 2, r.height() / 2)\
.rotate(step * 30, Qt.XAxis)\
.rotate(step * 10, Qt.YAxis)\
.rotate(step * 5, Qt.ZAxis)\
.scale(1 + 1.5 * step, 1 + 1.5 * step)\
.translate(-r.width() / 2, -r.height() / 2))
def stateChanged(self, state):
if state == QTimeLine.Running:
if self.timeLine.direction() == QTimeLine.Forward:
self.setCacheMode(self.NoCache)
elif state == QTimeLine.NotRunning:
if self.timeLine.direction() == QTimeLine.Backward:
self.setCacheMode(self.DeviceCoordinateCache)
def zoomIn(self):
if self.timeLine.direction() != QTimeLine.Forward:
self.timeLine.setDirection(QTimeLine.Forward)
if self.timeLine.state() == QTimeLine.NotRunning:
self.timeLine.start()
def zoomOut(self):
if self.timeLine.direction() != QTimeLine.Backward:
self.timeLine.setDirection(QTimeLine.Backward)
if self.timeLine.state() == QTimeLine.NotRunning:
self.timeLine.start()
class CustomProxy(QGraphicsProxyWidget):
def __init__(self, parent=None, wFlags=0):
super(CustomProxy, self).__init__(parent, wFlags)
self.popupShown = False
self.currentPopup = None
self.timeLine = QTimeLine(250, self)
self.timeLine.valueChanged.connect(self.updateStep)
self.timeLine.stateChanged.connect(self.stateChanged)
def boundingRect(self):
return QGraphicsProxyWidget.boundingRect(self).adjusted(0, 0, 10, 10)
def paintWindowFrame(self, painter, option, widget):
color = QColor(0, 0, 0, 64)
r = self.windowFrameRect()
right = QRectF(r.right(), r.top()+10, 10, r.height()-10)
bottom = QRectF(r.left()+10, r.bottom(), r.width(), 10)
intersectsRight = right.intersects(option.exposedRect)
intersectsBottom = bottom.intersects(option.exposedRect)
if intersectsRight and intersectsBottom:
path = QPainterPath()
path.addRect(right)
path.addRect(bottom)
painter.setPen(Qt.NoPen)
painter.setBrush(color)
painter.drawPath(path)
elif intersectsBottom:
painter.fillRect(bottom, color)
elif intersectsRight:
painter.fillRect(right, color)
super(CustomProxy, self).paintWindowFrame(painter, option, widget)
def hoverEnterEvent(self, event):
super(CustomProxy, self).hoverEnterEvent(event)
self.scene().setActiveWindow(self)
if self.timeLine.currentValue != 1:
self.zoomIn()
def hoverLeaveEvent(self, event):
super(CustomProxy, self).hoverLeaveEvent(event)
if not self.popupShown and (self.timeLine.direction() != QTimeLine.Backward or self.timeLine.currentValue() != 0):
self.zoomOut()
def sceneEventFilter(self, watched, event):
if watched.isWindow() and (event.type() == QEvent.UngrabMouse or event.type() == QEvent.GrabMouse):
self.popupShown = watched.isVisible()
if not self.popupShown and not self.isUnderMouse():
self.zoomOut()
return super(CustomProxy, self).sceneEventFilter(watched, event)
def itemChange(self, change, value):
if change == self.ItemChildAddedChange or change == self.ItemChildRemovedChange :
if change == self.ItemChildAddedChange:
self.currentPopup = value
self.currentPopup.setCacheMode(self.ItemCoordinateCache)
if self.scene() is not None:
self.currentPopup.installSceneEventFilter(self)
elif self.scene() is not None:
self.currentPopup.removeSceneEventFilter(self)
self.currentPopup = None
elif self.currentPopup is not None and change == self.ItemSceneHasChanged:
self.currentPopup.installSceneEventFilter(self)
return super(CustomProxy, self).itemChange(change, value)
def updateStep(self, step):
r = self.boundingRect()
self.setTransform(QTransform() \
.translate(r.width() / 2, r.height() / 2)\
.rotate(step * 30, Qt.XAxis)\
.rotate(step * 10, Qt.YAxis)\
.rotate(step * 5, Qt.ZAxis)\
.scale(1 + 1.5 * step, 1 + 1.5 * step)\
.translate(-r.width() / 2, -r.height() / 2))
def stateChanged(self, state):
if state == QTimeLine.Running:
if self.timeLine.direction() == QTimeLine.Forward:
self.setCacheMode(self.NoCache)
elif state == QTimeLine.NotRunning:
if self.timeLine.direction() == QTimeLine.Backward:
self.setCacheMode(self.DeviceCoordinateCache)
def zoomIn(self):
if self.timeLine.direction() != QTimeLine.Forward:
self.timeLine.setDirection(QTimeLine.Forward)
if self.timeLine.state() == QTimeLine.NotRunning:
self.timeLine.start()
def zoomOut(self):
if self.timeLine.direction() != QTimeLine.Backward:
self.timeLine.setDirection(QTimeLine.Backward)
if self.timeLine.state() == QTimeLine.NotRunning:
self.timeLine.start()
