def test_tool_tips(self):
scene = GraphicsScene()
view = QGraphicsView(scene)
w = TextListWidget()
text = "A" * 10
w.setItems([text, text])
scene.addItem(w)
view.grab() # ensure w is laid out
wrect = view.mapFromScene(w.mapToScene(
w.contentsRect())).boundingRect()
p = QPoint(wrect.topLeft() + QPoint(5, 5))
ev = QHelpEvent(QHelpEvent.ToolTip, p, view.viewport().mapToGlobal(p))
try:
QApplication.sendEvent(view.viewport(), ev)
self.assertEqual(QToolTip.text(), text)
finally:
QToolTip.hideText()
def __updateView(self, view: QGraphicsView, rect: QRectF) -> None:
view.setSceneRect(rect)
viewrect = view.mapFromScene(rect).boundingRect()
view.setFixedHeight(int(math.ceil(viewrect.height())))
container = view.parent()
if rect.isEmpty():
container.setVisible(False)
return
# map the rect to (main) viewport coordinates
viewrect = qgraphicsview_map_rect_from_scene(self, rect).boundingRect()
viewrect = qrectf_to_inscribed_rect(viewrect)
viewportrect = self.viewport().rect()
visible = (viewrect.top() < viewportrect.top()
or viewrect.y() + viewrect.height() >
viewportrect.y() + viewportrect.height())
container.setVisible(visible)
# force immediate layout of the container overlay
QCoreApplication.sendEvent(container, QEvent(QEvent.LayoutRequest))
def map_to_viewport(view: QGraphicsView, item: QGraphicsItem,
point: QPointF) -> QPoint:
point = item.mapToScene(point)
return view.mapFromScene(point)
