[Git][wxwidgets/wxwidgets][master] Fix wxStaticText label wrapping in wxGTK

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Vadim Zeitlin (@_VZ_)

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May 30, 2026, 8:13:35 PM (7 days ago) May 30
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Vadim Zeitlin pushed to branch master at wxWidgets / wxWidgets

Commits:

  • b6278528
    by Vadim Zeitlin at 2026-05-31T01:35:42+02:00 
    Fix wxStaticText label wrapping in wxGTK

Both using wxST_WRAP and explicitly calling Wrap() from wxEVT_SIZE
handler could result in making the visible label completely empty due to
SetLabel(m_unwrappedLabel) call in wxStaticTextBase::Wrap() not working
as expected: at least in wxGTK, m_unwrappedLabel was reset by SetLabel()
before being actually used.

Fix this by passing the already existing local copy of m_unwrappedLabel
to this function instead.

See https://stackoverflow.com/questions/79948024/wxwidgets-text-wrapping-causes-the-text-to-disappear

1 changed file:

Changes:

  • src/common/stattextcmn.cpp
    ... ... @@ -272,7 +272,11 @@ void wxStaticTextBase::Wrap(int width)
    272 272 
                                         : m_unwrappedLabel;
    273 273 
         if ( !m_unwrappedLabel.empty() )
    274 274 
         {
    275 
    -        SetLabel( m_unwrappedLabel );
    275 
    +        // This is tricky: we can't pass m_unwrappedLabel itself to SetLabel()
    276 
    +        // because it can/will be reset to empty string by this call before it
    277 
    +        // is used. So pass a copy of it which is not affected by the changes
    278 
    +        // to m_unwrappedLabel.
    279 
    +        SetLabel( unwrappedLabel );
    276 280 
         }
    277 281 
         wxLabelWrapper wrapper;
    278 282 
         wrapper.WrapLabel(this, width);

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