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fix: FloatingButton Antialiasing doesn't obvious 

Add Anitialiasing flag when drawing FloatingButton's panel.
  Change Opacity to 0.3.

Log: 在绘制FloatingButton面板时添加抗锯齿属性
Bug: https://pms.uniontech.com/bug-view-153687.html
Influence: 所有使用了FloatingButton和CE_FloatingWidget的应用，
都会减少阴影部分的锯齿

Change-Id: Ia2bcd272056ff1dc3b03c40f03d959aa056ab2d6
This commit is contained in:
Ye ShanShan 2022-09-07 15:53:39 +08:00 committed by mike
parent 584fffef2d
commit e9375403c8
1 changed files with 5 additions and 1 deletions
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6
src/widgets/dstyle.cpp
View File

@ -166,6 +166,8 @@ static QImage dropShadow(const QPixmap &px, qreal radius, const QColor &color)
QImage tmp(px.size() + QSize(radius * 2, radius * 2), QImage::Format_ARGB32_Premultiplied);
tmp.fill(0);
QPainter tmpPainter(&tmp);
tmpPainter.setOpacity(0.3); // design requirement
tmpPainter.setRenderHint(QPainter::Antialiasing);
tmpPainter.setCompositionMode(QPainter::CompositionMode_Source);
tmpPainter.drawPixmap(QPoint(radius, radius), px);
tmpPainter.end();
@ -264,6 +266,7 @@ void drawShadow(QPainter *pa, const QRect &rect, qreal xRadius, qreal yRadius, c
pa.setBrush(sc);
pa.setPen(Qt::NoPen);
pa.setRenderHint(QPainter::Antialiasing);
pa.drawRoundedRect(shadow_base.rect(), xRadius, yRadius);
pa.end();
@ -299,6 +302,7 @@ void drawShadow(QPainter *pa, const QRect &rect, const QPainterPath &path, const
shadow_base.setDevicePixelRatio(scale);
QPainter paTmp(&shadow_base);
paTmp.setRenderHint(QPainter::Antialiasing, true);
paTmp.setBrush(sc);
paTmp.setPen(Qt::NoPen);
paTmp.drawPath(path);
@ -1131,12 +1135,12 @@ void DStyle::drawPrimitive(const QStyle *style, DStyle::PrimitiveElement pe, con
shadow_rect.setHeight(qMin(shadow_rect.width(), shadow_rect.height()));
shadow_rect.moveCenter(opt->rect.center() + QPoint(shadow_xoffset / 2.0, shadow_yoffset / 2.0));
p->setRenderHint(QPainter::Antialiasing);
DDrawUtils::drawShadow(p, shadow_rect, frame_radius, frame_radius,
DStyle::adjustColor(color, 0, 0, +30), shadow_radius, QPoint(0, 0));
p->setPen(Qt::NoPen);
p->setBrush(color);
p->setRenderHint(QPainter::Antialiasing);
p->drawEllipse(content_rect);
} else if (btn->features & DStyleOptionButton::CircleButton) {
QRect content_rect = opt->rect;