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core/window: premultiply background colors

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Apparently these are supposed to be premultiplied. Some docs would be nice.
This commit is contained in:
outfoxxed 2024-09-10 00:01:17 -07:00
parent 2c485e415d
commit 19d74595d6
Signed by: outfoxxed
GPG key ID: 4C88A185FB89301E
2 changed files with 14 additions and 21 deletions
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21
src/core/proxywindow.cpp
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@ -287,16 +287,23 @@ QuickshellScreenInfo* ProxyWindowBase::screen() const {
return QuickshellTracked::instance()->screenInfo(qscreen);
}
QColor ProxyWindowBase::color() const {
if (this->window == nullptr) return this->mColor;
else return this->window->color();
}
QColor ProxyWindowBase::color() const { return this->mColor; }
void ProxyWindowBase::setColor(QColor color) {
if (this->window == nullptr) {
this->mColor = color;
emit this->colorChanged();
} else this->window->setColor(color);
if (this->window == nullptr) {
if (color != this->mColor) emit this->colorChanged();
} else {
auto premultiplied = QColor::fromRgbF(
color.redF() * color.alphaF(),
color.greenF() * color.alphaF(),
color.blueF() * color.alphaF(),
color.alphaF()
);
this->window->setColor(premultiplied);
}
}
PendingRegion* ProxyWindowBase::mask() const { return this->mMask; }

14
src/core/windowinterface.hpp
View file

@ -46,20 +46,6 @@ class WindowInterface: public Reloadable {
/// along with map[To|From]Item (which is not reactive).
Q_PROPERTY(QObject* windowTransform READ windowTransform NOTIFY windowTransformChanged);
/// The background color of the window. Defaults to white.
///
/// > [!WARNING] This seems to behave weirdly when using transparent colors on some systems.
/// > Using a colored content item over a transparent window is the recommended way to work around this:
/// > ```qml
/// > ProxyWindow {
/// > color: "transparent"
/// > Rectangle {
/// > anchors.fill: parent
/// > color: "#20ffffff"
/// >
/// > // your content here
/// > }
/// > }
/// > ```
Q_PROPERTY(QColor color READ color WRITE setColor NOTIFY colorChanged);
/// The clickthrough mask. Defaults to null.
///