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Animated transition on pattern-on-gradient resize.

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This commit is contained in:
John Preston
2021-08-13 21:18:06 +03:00
parent b9a9520ef5
commit 3dadcd9352
17 changed files with 213 additions and 135 deletions
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Telegram/SourceFiles/window/section_widget.cpp
+45 -22
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@@ -18,14 +18,29 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
namespace Window {
AbstractSectionWidget::AbstractSectionWidget(
QWidget *parent,
not_null<SessionController*> controller,
PaintedBackground paintedBackground)
: RpWidget(parent)
, _controller(controller) {
if (paintedBackground == PaintedBackground::Section) {
controller->repaintBackgroundRequests(
) | rpl::start_with_next([=] {
update();
}, lifetime());
}
}
Main::Session &AbstractSectionWidget::session() const {
return _controller->session();
}
SectionWidget::SectionWidget(
QWidget *parent,
not_null<Window::SessionController*> controller)
: AbstractSectionWidget(parent, controller) {
not_null<Window::SessionController*> controller,
PaintedBackground paintedBackground)
: AbstractSectionWidget(parent, controller, paintedBackground) {
}
void SectionWidget::setGeometryWithTopMoved(
@@ -99,18 +114,16 @@ void SectionWidget::PaintBackground(
const auto gradient = background->gradientForFill();
const auto fill = QSize(widget->width(), fullHeight);
auto fromy = controller->content()->backgroundFromY();
auto cached = controller->cachedBackground(fill);
const auto goodCache = (cached.area == fill);
const auto useCached = goodCache || !gradient.isNull();
if (!cached.pixmap.isNull()) {
auto state = controller->backgroundState(fill);
const auto paintCache = [&](const CachedBackground &cache) {
const auto to = QRect(
QPoint(cached.x, fromy + cached.y),
cached.pixmap.size() / cIntRetinaFactor());
if (goodCache) {
p.drawPixmap(to, cached.pixmap);
QPoint(cache.x, fromy + cache.y),
cache.pixmap.size() / cIntRetinaFactor());
if (cache.area == fill) {
p.drawPixmap(to, cache.pixmap);
} else {
const auto sx = fill.width() / float64(cached.area.width());
const auto sy = fill.height() / float64(cached.area.height());
const auto sx = fill.width() / float64(cache.area.width());
const auto sy = fill.height() / float64(cache.area.height());
const auto round = [](float64 value) -> int {
return (value >= 0.)
? int(std::ceil(value))
@@ -122,17 +135,27 @@ void SectionWidget::PaintBackground(
sto.y(),
round((to.x() + to.width()) * sx) - sto.x(),
round((to.y() + to.height()) * sy) - sto.y(),
cached.pixmap);
cache.pixmap);
}
};
const auto goodNow = !state.now.pixmap.isNull()
&& (state.now.area == fill);
const auto useCache = goodNow || !gradient.isNull();
if (useCache) {
if (state.shown < 1. && !gradient.isNull()) {
paintCache(state.was);
p.setOpacity(state.shown);
}
paintCache(state.now);
return;
}
const auto patternOpacity = background->paper().patternOpacity();
const auto &bg = background->pixmap();
if (!bg.isNull() && !background->tile()) {
auto hq = PainterHighQualityEnabler(p);
const auto &prepared = background->prepared();
if (!prepared.isNull() && !background->tile()) {
const auto hq = PainterHighQualityEnabler(p);
const auto rects = Window::Theme::ComputeBackgroundRects(
fill,
bg.size());
prepared.size());
if (!gradient.isNull()) {
p.drawImage(rects.to, gradient);
p.setCompositionMode(QPainter::CompositionMode_SoftLight);
@@ -140,17 +163,17 @@ void SectionWidget::PaintBackground(
}
auto to = rects.to;
to.moveTop(to.top() + fromy);
p.drawPixmap(to, bg, rects.from);
p.drawImage(to, prepared, rects.from);
return;
}
if (!gradient.isNull()) {
auto hq = PainterHighQualityEnabler(p);
const auto hq = PainterHighQualityEnabler(p);
p.drawImage(QRect(QPoint(0, fromy), fill), gradient);
p.setCompositionMode(QPainter::CompositionMode_SoftLight);
p.setOpacity(patternOpacity);
}
if (!bg.isNull()) {
auto &tiled = background->pixmapForTiled();
if (!prepared.isNull()) {
const auto &tiled = background->preparedForTiled();
auto left = clip.left();
auto top = clip.top();
auto right = clip.left() + clip.width();
@@ -163,7 +186,7 @@ void SectionWidget::PaintBackground(
auto cy = qCeil((bottom - fromy) / h);
for (auto i = sx; i < cx; ++i) {
for (auto j = sy; j < cy; ++j) {
p.drawPixmap(QPointF(i * w, fromy + j * h), tiled);
p.drawImage(QPointF(i * w, fromy + j * h), tiled);
}
}
}