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block resizing of children, when having no width/height

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This commit is contained in:
Uwe Rathmann 2019-09-20 07:08:08 +02:00
parent 03c7913f18
commit c6553c3310
1 changed files with 41 additions and 25 deletions
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66
src/controls/QskControl.cpp
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@ -171,8 +171,6 @@ void QskControl::setMargins( const QMarginsF& margins )
{
using namespace QskAspect;
const auto subControl = effectiveSubcontrol( QskAspect::Control );
const QMarginsF m(
qMax( qreal( margins.left() ), qreal( 0.0 ) ),
qMax( qreal( margins.top() ), qreal( 0.0 ) ),
@ -181,6 +179,8 @@ void QskControl::setMargins( const QMarginsF& margins )
if ( m != this->margins() )
{
const auto subControl = effectiveSubcontrol( QskAspect::Control );
setMarginsHint( subControl | Margin, m );
resetImplicitSize();
@ -892,29 +892,32 @@ void QskControl::windowDeactivateEvent()
void QskControl::updateItemPolish()
{
if ( d_func()->autoLayoutChildren && !maybeUnresized()
&& ( width() > 0.0 || height() > 0.0 ) )
{
const auto rect = layoutRect();
updateResources(); // an extra dirty bit for this ???
const auto children = childItems();
for ( auto child : children )
if ( width() >= 0.0 || height() >= 0.0 )
{
if ( d_func()->autoLayoutChildren && !maybeUnresized() )
{
/*
We don't want to resize invisible children, but then
we would need to set up connections to know when a child
becomes visible. So we don't use qskIsVisibleToLayout here.
*/
if ( !qskIsTransparentForPositioner( child ) )
const auto rect = layoutRect();
const auto children = childItems();
for ( auto child : children )
{
const auto r = qskConstrainedItemRect( child, rect );
qskSetItemGeometry( child, r );
/*
We don't want to resize invisible children, but then
we would need to set up connections to know when a child
becomes visible. So we don't use qskIsVisibleToLayout here.
*/
if ( !qskIsTransparentForPositioner( child ) )
{
const auto r = qskConstrainedItemRect( child, rect );
qskSetItemGeometry( child, r );
}
}
}
}
updateResources();
updateLayout();
updateLayout();
}
}
QSGNode* QskControl::updateItemPaintNode( QSGNode* node )
@ -980,17 +983,30 @@ QSizeF QskControl::layoutSizeHint(
qreal h = -1.0;
const auto children = childItems();
for ( const auto child : children )
{
if ( qskIsVisibleToLayout( child ) )
if ( !qskIsVisibleToLayout( child ) )
continue;
const auto policy = qskSizePolicy( child );
if ( constraint.width() >= 0.0 && policy.isConstrained( Qt::Vertical ) )
{
const auto hint = qskSizeConstraint( child, which, constraint );
h = QskLayoutHint::combined( which, h, hint.height() );
}
else if ( constraint.height() >= 0.0 && policy.isConstrained( Qt::Horizontal ) )
{
const auto hint = qskSizeConstraint( child, which, constraint );
w = QskLayoutHint::combined( which, w, hint.width() );
}
else
{
const auto hint = qskSizeConstraint( child, which, QSizeF() );
if ( constraint.width() < 0.0 )
w = QskLayoutHint::combined( which, w, hint.width() );
if ( constraint.height() < 0.0 )
h = QskLayoutHint::combined( which, h, hint.height() );
w = QskLayoutHint::combined( which, w, hint.width() );
h = QskLayoutHint::combined( which, h, hint.height() );
}
}