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Windows11Style/WindowsVistaStyle: don't modify SE_ItemViewItemDecoration

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The windowsvista style increased the width for SE_ItemViewItemDecoration
by 4 pixels which lead to a non-square area for the decoration item.
Since the item is painted centered on the given area, this did not
change anything for squared pixmap-based icons. But when using a svg,
the image is automatically stretched to fill the complete area.
Therefore a svg is not painted quadratic but stretched which is not what
a user expects. Looking for other usages of SE_ItemViewItemDecoration
did not reveal another usecase for this so it should be safe to remove
the handling within windowsvista style.

Pick-to: 6.9
Fixes: QTBUG-131955
Change-Id: I65f8e2afd1c2fb310d6a23b1405a920adcbf42c3
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
This commit is contained in:
Christian Ehrlicher 2025-03-21 23:30:20 +01:00 committed by Volker Hilsheimer
parent fb7670f193
commit 298e811922
1 changed files with 0 additions and 6 deletions
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6
src/plugins/styles/modernwindows/qwindowsvistastyle.cpp
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@ -4244,12 +4244,6 @@ QRect QWindowsVistaStyle::subElementRect(SubElement element, const QStyleOption
rect = QCommonStyle::subElementRect(SE_ProgressBarGroove, option, widget);
break;
case SE_ItemViewItemDecoration:
rect = QWindowsStyle::subElementRect(element, option, widget);
if (qstyleoption_cast<const QStyleOptionViewItem *>(option))
rect.adjust(-2, 0, 2, 0);
break;
case SE_ItemViewItemFocusRect:
rect = QWindowsStyle::subElementRect(element, option, widget);
if (const QStyleOptionViewItem *vopt = qstyleoption_cast<const QStyleOptionViewItem *>(option)) {