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QWindows11Style: HighDPI aware scrollbars

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Draw scrollbars and scrollbar handles on sub-pixel coordinates to be
HighDPI aware.

Change-Id: Iab7c8566f31a58f83d03ec6644be68bf130682ce
Reviewed-by: Alessandro Portale <alessandro.portale@qt.io>
(cherry picked from commit 91df9d1bbf05e69348953ff6b53a7d060d4a987d)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
This commit is contained in:
Wladimir Leuschner 2024-02-28 15:31:37 +01:00 committed by Qt Cherry-pick Bot
parent 0ce2ed6f60
commit b79cd66130
1 changed files with 41 additions and 7 deletions
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48
src/plugins/styles/modernwindows/qwindows11style.cpp
View File

@ -474,7 +474,7 @@ void QWindows11Style::drawComplexControl(ComplexControl control, const QStyleOpt
painter->setBrush(Qt::NoBrush);
painter->setPen(WINUI3Colors[colorSchemeIndex][frameColorLight]);
painter->drawRoundedRect(rect, topLevelRoundingRadius + 0.5, topLevelRoundingRadius + 0.5);
painter->drawRoundedRect(rect.marginsRemoved(QMarginsF(0.5,0.5,0.5,0.5)), topLevelRoundingRadius + 0.5, topLevelRoundingRadius + 0.5);
}
if (sub & SC_ScrollBarSlider) {
QRectF rect = proxy()->subControlRect(CC_ScrollBar, option, SC_ScrollBarSlider, widget);
@ -487,9 +487,9 @@ void QWindows11Style::drawComplexControl(ComplexControl control, const QStyleOpt
}
else {
if (scrollbar->orientation == Qt::Vertical)
rect.setWidth(rect.width()/4);
rect.setWidth(1);
else
rect.setHeight(rect.height()/4);
rect.setHeight(1);
}
rect.moveCenter(center);
@ -500,7 +500,7 @@ void QWindows11Style::drawComplexControl(ComplexControl control, const QStyleOpt
if (sub & SC_ScrollBarAddLine) {
QRectF rect = proxy()->subControlRect(CC_ScrollBar, option, SC_ScrollBarAddLine, widget);
if (flags & State_MouseOver) {
painter->setFont(QFont("Segoe Fluent Icons"));
painter->setFont(QFont("Segoe Fluent Icons",6));
painter->setPen(Qt::gray);
if (scrollbar->orientation == Qt::Vertical)
painter->drawText(rect,"\uEDDC", Qt::AlignVCenter | Qt::AlignHCenter);
@ -1855,6 +1855,34 @@ QRect QWindows11Style::subControlRect(ComplexControl control, const QStyleOption
}
break;
#endif // Qt_NO_SPINBOX
case CC_ScrollBar:
{
ret = QCommonStyle::subControlRect(control, option, subControl, widget);
switch (subControl) {
case QStyle::SC_ScrollBarAddLine:
if (const QStyleOptionSlider *scrollbar = qstyleoption_cast<const QStyleOptionSlider *>(option)) {
if (scrollbar->orientation == Qt::Vertical) {
ret = ret.adjusted(2,2,-2,-3);
} else {
ret = ret.adjusted(3,2,-2,-2);
}
}
break;
case QStyle::SC_ScrollBarSubLine:
if (const QStyleOptionSlider *scrollbar = qstyleoption_cast<const QStyleOptionSlider *>(option)) {
if (scrollbar->orientation == Qt::Vertical) {
ret = ret.adjusted(2,2,-2,-3);
} else {
ret = ret.adjusted(3,2,-2,-2);
}
}
break;
default:
break;
}
break;
}
default:
ret = QWindowsVistaStyle::subControlRect(control, option, subControl, widget);
}
@ -1908,14 +1936,20 @@ int QWindows11Style::pixelMetric(PixelMetric metric, const QStyleOption *option,
case QStyle::PM_IndicatorHeight:
case QStyle::PM_ExclusiveIndicatorWidth:
case QStyle::PM_ExclusiveIndicatorHeight:
return 16;
res = 16;
break;
case QStyle::PM_SliderLength:
res = int(QStyleHelper::dpiScaled(16, option));
break;
case QStyle::PM_TitleBarButtonIconSize:
return 16;
res = 16;
break;
case QStyle::PM_TitleBarButtonSize:
return 32;
res = 32;
break;
case QStyle::PM_ScrollBarExtent:
res = 12;
break;
default:
res = QWindowsVistaStyle::pixelMetric(metric, option, widget);
}