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Update the default behavior of items with layout 

The earlier patch 4ae537e67c had default
behavior as opt-out for size policy of items within the layout. This
can cause a lot more UI regressions than anticipated and, so make it as
opt-in (Qt::AA_QtQuickUseDefaultSizePolicy). This means that the user
needs to explicitly set this attribute to utilize the default size
policy of quick items.

Amends patch 4ae537e67c

Task-number: QTBUG-117597
Pick-to: 6.7
Change-Id: Ibdb3ea9897c19792a110cbb15834b27383b9103e
Reviewed-by: Jan Arve Sæther <jan-arve.saether@qt.io>
bb10
Santhosh Kumar 2024-02-27 15:35:56 +01:00
parent dad2a60128
commit c606739ad1
2 changed files with 13 additions and 5 deletions
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2
src/corelib/global/qnamespace.h
View File

@ -422,7 +422,7 @@ namespace Qt {
enum ApplicationAttribute
{
// AA_ImmediateWidgetCreation = 0,
AA_QtQuickDontUseDefaultSizePolicy = 1,
AA_QtQuickUseDefaultSizePolicy = 1 QT_TECH_PREVIEW_API,
AA_DontShowIconsInMenus = 2,
AA_NativeWindows = 3,
AA_DontCreateNativeWidgetSiblings = 4,

16
src/corelib/global/qnamespace.qdoc
View File

@ -84,10 +84,18 @@
QCoreApplication::testAttribute().
\value [since 6.7] AA_QtQuickDontUseDefaultSizePolicy Qt Quick Layouts won't use the built-in
size policy of \l Item. This restores previous behavior where all items were fixed size
by default. Size policy can be customized by explicitly setting
\l{Layout::fillWidth}{Layout.fillWidth} or \l{Layout::fillHeight}{Layout.fillHeight}.
\value [since 6.7] AA_QtQuickUseDefaultSizePolicy Qt Quick Layouts use the built-in size
policy of \l Item. For example, when this is set, \l Button fills the available
width, but has a fixed height. When this is not set, it will use the default
sizing behavior of the layout it's in, which is to use its implicit size as the
preferred size. This is explained in detail in \l {Specifying preferred size} and
\l {Size constraints}. When this is set, the default size policy of the item
with the layout can be overridden by explicitly setting
\l{Layout::fillWidth}{Layout.fillWidth} or
\l{Layout::fillHeight}{Layout.fillHeight}.
\b Note: This API is considered tech preview and may change or be removed in future
versions of Qt.
\value AA_DontShowIconsInMenus Actions with the Icon property won't be
shown in any menus unless specifically set by the