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Backport PR #19671 on branch v3.4.x (Fix crash in early window raise in gtk3.) #19678

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Merged
merged 1 commit into from
Mar 10, 2021
Merged

Backport PR #19671 on branch v3.4.x (Fix crash in early window raise in gtk3.) #19678

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9 changes: 8 additions & 1 deletion lib/matplotlib/backends/backend_gtk3.py
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Original file line number Diff line number Diff line change
Expand Up @@ -392,7 +392,14 @@ def show(self):
self.window.show()
self.canvas.draw()
if mpl.rcParams['figure.raise_window']:
self.window.present()
if self.window.get_window():
self.window.present()
else:
# If this is called by a callback early during init,
# self.window (a GtkWindow) may not have an associated
# low-level GdkWindow (self.window.get_window()) yet, and
# present() would crash.
_api.warn_external("Cannot raise window yet to be setup")

def full_screen_toggle(self):
self._full_screen_flag = not self._full_screen_flag
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