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Merge pull request #9033 from mhugo/fix_20831

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Fix "Allow null" in range widget (fixes #20831)
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Hugo Mercier 2019-01-30 13:32:00 +01:00 committed by GitHub
commit fa1f8762d5
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1 changed files with 6 additions and 1 deletions
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7
src/gui/editorwidgets/qgsrangewidgetwrapper.cpp
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@ -146,7 +146,12 @@ void QgsRangeWidgetWrapper::initWidget( QWidget *editor )
if ( allowNull )
{
int stepval = step.isValid() ? step.toInt() : 1;
minval -= stepval;
int newMinval = minval - stepval;
// make sure there is room for a new value (i.e. signed integer does not overflow)
if ( newMinval < minval )
{
minval = newMinval;
}
mIntSpinBox->setValue( minval );
QgsSpinBox *intSpinBox( qobject_cast<QgsSpinBox *>( mIntSpinBox ) );
if ( intSpinBox )