[konsole] [Bug 439339] Konsole window doesn't honor Initial terminal size columns setting

[Kurt Hindenburg]

https://bugs.kde.org/show_bug.cgi?id=439339

--- Comment #8 from Kurt Hindenburg <kurt.hindenburg at gmail.com> ---
Git commit 090356661c92bfedeeeaf6f4f77d294facb3d8c6 by Kurt Hindenburg, on
behalf of Ahmad Samir.
Committed on 02/08/2021 at 15:28.
Pushed by hindenburg into branch 'master'.

Fix KXmlGUI toolbars; and Konsole MainWindow size

Call setupGUI(), which will call createGUI (since we set the
KXmlGuiWindow::Create flag), omit the StatusBar flag since we don't have a
statusbar and don't want the "Show StatusBar" menu action.

TabbedViewContainer::sizeHint() calculates an optimum size for itself,
including the sizes of its child widgets; added in efb621d091c05f11 by
Mariusz Glebocki; following the code:
MainWindow creates a ViewManager
ViewManager creates a TabbedViewContainer and then a TerminalDisplay

which means that the first time TabbedViewContainer::sizeHint() is called
the TerminalDisplay widget size is 0, then TabbedViewContainer::sizeHint()
would return 0.

Which is why calling resize() in MainWindow was delayed to the showEvent(),
(and even delayed more by a QTimer::singleShot() call in Application),
at which point all the child widgets have been created and
MainWindow::sizeHint() (which logically takes into account the sizeHint()
of its child widgets) would return a sensible size.
Related: bug 436471, bug 430036

M  +12   -5    src/MainWindow.cpp

https://invent.kde.org/utilities/konsole/commit/090356661c92bfedeeeaf6f4f77d294facb3d8c6

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