def widget_popup_geometry(pos, widget):
# type: (QPoint, QWidget) -> QRect
widget.ensurePolished()
if widget.testAttribute(Qt.WA_Resized):
size = widget.size()
else:
size = widget.sizeHint()
screen = QApplication.screenAt(pos)
if screen is None:
screen = QApplication.primaryScreen()
screen_geom = screen.availableGeometry()
size = size.boundedTo(screen_geom.size())
geom = QRect(pos, size)
if geom.top() < screen_geom.top():
geom.moveTop(screen_geom.top())
if geom.left() < screen_geom.left():
geom.moveLeft(screen_geom.left())
bottom_margin = screen_geom.bottom() - geom.bottom()
right_margin = screen_geom.right() - geom.right()
if bottom_margin < 0:
# Falls over the bottom of the screen, move it up.
geom.translate(0, bottom_margin)
# TODO: right to left locale
if right_margin < 0:
# Falls over the right screen edge, move the menu to the
# other side of pos.
geom.translate(-size.width(), 0)
return geom
def __setControlAreaVisible(self, visible):
# type: (bool) -> None
if self.__splitter is None or self.__splitter.count() < 2:
return
self.controlAreaVisible = visible
splitter = self.__splitter # type: QSplitter
w = splitter.widget(0)
# Set minimum width to 1 (overrides minimumSizeHint) when control area
# is not visible to allow the main area to shrink further. Reset the
# minimum width with a 0 if control area is visible.
w.setMinimumWidth(int(not visible))
sizes = splitter.sizes()
current_size = sizes[0]
if bool(current_size) == visible:
return
current_width = w.width()
geom = self.geometry()
frame = self.frameGeometry()
framemargins = QMargins(
frame.left() - geom.left(),
frame.top() - geom.top(),
frame.right() - geom.right(),
frame.bottom() - geom.bottom()
)
splitter.setSizes([int(visible), QWIDGETSIZE_MAX])
if not self.isWindow() or \
self.windowState() not in [Qt.WindowNoState, Qt.WindowActive]:
# not a window or not in state where we can move move/resize
return
# force immediate resize recalculation
splitter.refresh()
self.layout().invalidate()
self.layout().activate()
if visible:
# move left and expand by the exposing widget's width
diffx = -w.width()
diffw = w.width()
else:
# move right and shrink by the collapsing width
diffx = current_width
diffw = -current_width
newgeom = QRect(
geom.x() + diffx, geom.y(), geom.width() + diffw, geom.height()
)
# bound/move by available geometry
bounds = QApplication.desktop().availableGeometry(self)
bounds = bounds.adjusted(
framemargins.left(), framemargins.top(),
-framemargins.right(), -framemargins.bottom()
)
newsize = newgeom.size().boundedTo(bounds.size())
newgeom = QRect(newgeom.topLeft(), newsize)
newgeom.moveLeft(max(newgeom.left(), bounds.left()))
newgeom.moveRight(min(newgeom.right(), bounds.right()))
self.setGeometry(newgeom)
def __setControlAreaVisible(self, visible):
# type: (bool) -> None
if self.__splitter is None or self.__splitter.count() < 2:
return
self.controlAreaVisible = visible
splitter = self.__splitter # type: QSplitter
w = splitter.widget(0)
# Set minimum width to 1 (overrides minimumSizeHint) when control area
# is not visible to allow the main area to shrink further. Reset the
# minimum width with a 0 if control area is visible.
w.setMinimumWidth(int(not visible))
sizes = splitter.sizes()
current_size = sizes[0]
if bool(current_size) == visible:
return
current_width = w.width()
geom = self.geometry()
frame = self.frameGeometry()
framemargins = QMargins(
frame.left() - geom.left(),
frame.top() - geom.top(),
frame.right() - geom.right(),
frame.bottom() - geom.bottom()
)
splitter.setSizes([int(visible), QWIDGETSIZE_MAX])
if not self.isWindow() or \
self.windowState() not in [Qt.WindowNoState, Qt.WindowActive]:
# not a window or not in state where we can move move/resize
return
# force immediate resize recalculation
splitter.refresh()
self.layout().invalidate()
self.layout().activate()
if visible:
# move left and expand by the exposing widget's width
diffx = -w.width()
diffw = w.width()
else:
# move right and shrink by the collapsing width
diffx = current_width
diffw = -current_width
newgeom = QRect(
geom.x() + diffx, geom.y(), geom.width() + diffw, geom.height()
)
# bound/move by available geometry
bounds = QApplication.desktop().availableGeometry(self)
bounds = bounds.adjusted(
framemargins.left(), framemargins.top(),
-framemargins.right(), -framemargins.bottom()
)
newsize = newgeom.size().boundedTo(bounds.size())
newgeom = QRect(newgeom.topLeft(), newsize)
newgeom.moveLeft(max(newgeom.left(), bounds.left()))
newgeom.moveRight(min(newgeom.right(), bounds.right()))
self.setGeometry(newgeom)
def dropdown_popup_geometry(geometry, origin, screen):
# type: (QRect, QRect, QRect) -> QRect
"""
Move/constrain the geometry for a drop down popup.
Parameters
----------
geometry : QRect
The base popup geometry if not constrained.
origin : QRect
The origin rect from which the popup extends.
screen : QRect
The available screen geometry into which the popup must fit.
Returns
-------
geometry: QRect
Constrained drop down list geometry to fit into screen
"""
# if the popup geometry extends bellow the screen and there is more room
# above the popup origin ...
geometry = QRect(geometry)
geometry.moveTopLeft(origin.bottomLeft() + QPoint(0, 1))
if geometry.bottom() > screen.bottom() \
and origin.center().y() > screen.center().y():
# ...flip the rect about the origin so it extends upwards
geometry.moveBottom(origin.top() - 1)
# fixup horizontal position if it extends outside the screen
if geometry.left() < screen.left():
geometry.moveLeft(screen.left())
if geometry.right() > screen.right():
geometry.moveRight(screen.right())
# bounded by screen geometry
return geometry.intersected(screen)
def dropdown_popup_geometry(geometry, origin, screen):
# type: (QRect, QRect, QRect) -> QRect
"""
Move/constrain the geometry for a drop down popup.
Parameters
----------
geometry : QRect
The base popup geometry if not constrained.
origin : QRect
The origin rect from which the popup extends.
screen : QRect
The available screen geometry into which the popup must fit.
Returns
-------
geometry: QRect
Constrained drop down list geometry to fit into screen
"""
# if the popup geometry extends bellow the screen and there is more room
# above the popup origin ...
geometry = QRect(geometry)
geometry.moveTopLeft(origin.bottomLeft() + QPoint(0, 1))
if geometry.bottom() > screen.bottom() \
and origin.center().y() > screen.center().y():
# ...flip the rect about the origin so it extends upwards
geometry.moveBottom(origin.top() - 1)
# fixup horizontal position if it extends outside the screen
if geometry.left() < screen.left():
geometry.moveLeft(screen.left())
if geometry.right() > screen.right():
geometry.moveRight(screen.right())
# bounded by screen geometry
return geometry.intersected(screen)