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Handle None from QApplication.desktop().screen()

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This prevents a crash when Anki is open for multiple days.  Reference:
https://anki.tenderapp.com/discussions/ankidesktop/41879-qt-cannot-create-window-no-screens-available
This commit is contained in:
Andrew Gaul 2020-06-02 08:48:51 +09:00
parent a0c1b68b86
commit e366b86af2
2 changed files with 4 additions and 0 deletions
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CONTRIBUTORS
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@ -37,6 +37,7 @@ Henrik Giesel <hengiesel@gmail.com>
Michał Bartoszkiewicz <mbartoszkiewicz@gmail.com> Michał Bartoszkiewicz <mbartoszkiewicz@gmail.com>
Sander Santema <github.com/sandersantema/> Sander Santema <github.com/sandersantema/>
Thomas Brownback <https://github.com/brownbat/> Thomas Brownback <https://github.com/brownbat/>
Andrew Gaul <andrew@gaul.org>
******************** ********************

3
qt/aqt/webview.py
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@ -302,6 +302,9 @@ class AnkiWebView(QWebEngineView):
if isMac: if isMac:
return 1 return 1
screen = QApplication.desktop().screen() screen = QApplication.desktop().screen()
if screen is None:
return 1
dpi = screen.logicalDpiX() dpi = screen.logicalDpiX()
factor = dpi / 96.0 factor = dpi / 96.0
if isLin: if isLin: