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Details

Type: Bug
Resolution: Unresolved
Priority: P3: Somewhat important
Fix Version/s: None
Affects Version/s: 6.4
Component/s: Quick: Controls 2
Labels:
None

Platform/s:

macOS

Description

Run buttons.qml and see how often each button changes its implicit width

With Material style it is acceptable, and no changes to implicitWidth after the Buttons are completed:

jas@Jans-MacBook-Pro:~/dev/issues/qtspeech$ QT_QUICK_CONTROLS_STYLE="Material" qml buttons.qml 
qt.qpa.fonts: Populating font family aliases took 338 ms. Replace uses of missing font family "Roboto" with one that exists to avoid this cost. 
qml: StopButton.implicitWidth:24
qml: StopButton.implicitWidth:16
qml: ResumeButton.implicitWidth:24
qml: ResumeButton.implicitWidth:16
qml: PauseButton.implicitWidth:24
qml: PauseButton.implicitWidth:16
qml: SpeakButton.implicitWidth:24
qml: SpeakButton.implicitWidth:16
qml: StopButton.implicitWidth:64
qml: ResumeButton.implicitWidth:64
qml: ResumeButton.implicitWidth:71.4375
qml: PauseButton.implicitWidth:64
qml: SpeakButton.implicitWidth:64
qml: layout.implicitWidth:279
qml: window.minimumWidth:279
qml: layout COMPLETED
qml: StopButton COMPLETED
qml: ResumeButton COMPLETED
qml: PauseButton COMPLETED
qml: SpeakButton COMPLETED

With macOS style it is not so acceptable, and it changes to implicitWidth even after the Buttons are completed:

jas@Jans-MacBook-Pro:~/dev/issues/qtspeech$ QT_QUICK_CONTROLS_STYLE="macOS" qml buttons.qml 
qml: StopButton.implicitWidth:11
qml: StopButton.implicitWidth:24
qml: StopButton.implicitWidth:42
qml: StopButton.implicitWidth:51.765625
qml: ResumeButton.implicitWidth:11
qml: ResumeButton.implicitWidth:24
qml: ResumeButton.implicitWidth:42
qml: ResumeButton.implicitWidth:72.078125
qml: PauseButton.implicitWidth:11
qml: PauseButton.implicitWidth:24
qml: PauseButton.implicitWidth:42
qml: PauseButton.implicitWidth:59.859375
qml: SpeakButton.implicitWidth:11
qml: SpeakButton.implicitWidth:24
qml: SpeakButton.implicitWidth:42
qml: SpeakButton.implicitWidth:61.0625
qml: layout.implicitWidth:262
qml: window.minimumWidth:262
qml: layout COMPLETED
qml: StopButton COMPLETED
qml: ResumeButton COMPLETED
qml: PauseButton COMPLETED
qml: SpeakButton COMPLETED
qml: SpeakButton.implicitWidth:80
qml: layout.implicitWidth:280
qml: window.minimumWidth:280
qml: PauseButton.implicitWidth:78
qml: layout.implicitWidth:298
qml: window.minimumWidth:298
qml: ResumeButton.implicitWidth:91
qml: layout.implicitWidth:316
qml: window.minimumWidth:316
qml: StopButton.implicitWidth:70
qml: layout.implicitWidth:334
qml: window.minimumWidth:334

This also causes the Window to have a too small initial size (but you could argue that this is a bug in ApplicationWindow)