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Backport PR #29355 on branch v3.10.x (Add QtCore.Slot() decorations to FigureCanvasQT) #29361

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Merged
merged 1 commit into from
Dec 21, 2024
Merged

Backport PR #29355 on branch v3.10.x (Add QtCore.Slot() decorations to FigureCanvasQT) #29361

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2 changes: 2 additions & 0 deletions lib/matplotlib/backends/backend_qt.py
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Original file line number Diff line number Diff line change
Expand Up @@ -239,6 +239,7 @@ def __init__(self, figure=None):
palette = QtGui.QPalette(QtGui.QColor("white"))
self.setPalette(palette)

@QtCore.Slot()
def _update_pixel_ratio(self):
if self._set_device_pixel_ratio(
self.devicePixelRatioF() or 1): # rarely, devicePixelRatioF=0
Expand All @@ -248,6 +249,7 @@ def _update_pixel_ratio(self):
event = QtGui.QResizeEvent(self.size(), self.size())
self.resizeEvent(event)

@QtCore.Slot(QtGui.QScreen)
def _update_screen(self, screen):
# Handler for changes to a window's attached screen.
self._update_pixel_ratio()
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