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Good dropdown rounding and shadow.

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This commit is contained in:
John Preston 2022-01-06 18:27:57 +03:00
parent c43699fb43
commit 8659f60b46
2 changed files with 132 additions and 19 deletions
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142
Telegram/SourceFiles/history/view/history_view_react_button.cpp
View file

@ -104,6 +104,10 @@ QRect Button::geometry() const {
return _geometry;
}
int Button::expandedHeight() const {
return _expandedHeight;
}
int Button::scroll() const {
return _scroll;
}
@ -325,6 +329,11 @@ Manager::Manager(
_outer * ratio,
QImage::Format_ARGB32_Premultiplied);
_shadowBuffer.setDevicePixelRatio(ratio);
_expandedBuffer = QImage(
_outer.width() * ratio,
(_outer.height() + st::reactionCornerAddedHeightMax) * ratio,
QImage::Format_ARGB32_Premultiplied);
_expandedBuffer.setDevicePixelRatio(ratio);
if (wheelEventsTarget) {
stealWheelEvents(wheelEventsTarget);
@ -337,7 +346,7 @@ Manager::Manager(
_chosen.fire({
.context = context,
.emoji = emoji,
});
});
}
};
};
@ -697,29 +706,36 @@ void Manager::paintButton(
const auto position = geometry.topLeft();
const auto size = geometry.size();
const auto expanded = (size.height() - _outer.height());
const auto shadow = context.st->shadowFg()->c;
if (opacity != 1.) {
p.setOpacity(opacity);
}
const auto background = context.st->windowBg()->c;
const auto source = validateFrame(
frameIndex,
scale,
background,
shadow);
auto layeredPainter = std::optional<Painter>();
if (expanded) {
paintLongImage(p, geometry, _cacheBg, source);
_expandedBuffer.fill(Qt::transparent);
}
const auto q = expanded ? &layeredPainter.emplace(&_expandedBuffer) : &p;
const auto shadow = context.st->shadowFg()->c;
const auto background = context.st->windowBg()->c;
if (expanded) {
q->fillRect(QRect(QPoint(), size), context.st->windowBg());
} else {
const auto source = validateFrame(
frameIndex,
scale,
background,
shadow);
p.drawImage(position, _cacheBg, source);
}
const auto current = (button == _button.get());
const auto mainEmojiPosition = position
+ (button->expandUp() ? QPoint(0, expanded) : QPoint());
const auto mainEmojiPosition = !expanded
? position
: button->expandUp()
? QPoint(0, expanded)
: QPoint();
if (expanded || (current && !onlyMainEmojiVisible())) {
p.save();
paintAllEmoji(p, button, scale, mainEmojiPosition);
p.restore();
const auto origin = expanded ? QPoint() : position;
paintAllEmoji(*q, button, scale, origin, mainEmojiPosition);
if (current && expanded) {
_showingAll = true;
}
@ -731,11 +747,94 @@ void Manager::paintButton(
clearAppearAnimations();
}
if (expanded) {
const auto expandRatio = float64(expanded)
/ (button->expandedHeight() - _outer.height());
overlayExpandedBorder(*q, size, expandRatio, scale, shadow);
layeredPainter.reset();
p.drawImage(
geometry,
_expandedBuffer,
QRect(QPoint(), size / style::DevicePixelRatio()));
}
if (opacity != 1.) {
p.setOpacity(1.);
}
}
void Manager::overlayExpandedBorder(
Painter &p,
QSize size,
float64 expandRatio,
float64 scale,
const QColor &shadow) {
const auto maxSide = _inner.width();
const auto radius = expandRatio * (maxSide / 2.)
+ (1. - expandRatio) * st::reactionCornerRadius;
const auto minHeight = int(std::ceil(radius * 2)) + 1;
const auto maskSize = QRect(0, 0, maxSide, minHeight).marginsAdded(
st::reactionCornerShadow
).size();
auto mask = QImage(
maskSize * style::DevicePixelRatio(),
QImage::Format_ARGB32_Premultiplied);
mask.fill(Qt::transparent);
{
auto q = Painter(&mask);
auto hq = PainterHighQualityEnabler(q);
const auto inner = QRect(_inner.x(), _inner.y(), maxSide, minHeight);
const auto center = inner.center();
q.setPen(Qt::NoPen);
q.setBrush(Qt::white);
q.save();
q.translate(center);
q.scale(scale, scale);
q.translate(-center);
q.drawRoundedRect(inner, radius, radius);
q.restore();
}
auto shadowMask = QImage(
maskSize * style::DevicePixelRatio(),
QImage::Format_ARGB32_Premultiplied);
shadowMask.fill(Qt::transparent);
{
auto q = Painter(&shadowMask);
auto hq = PainterHighQualityEnabler(q);
const auto inner = QRect(_inner.x(), _inner.y(), maxSide, minHeight);
const auto center = inner.center();
const auto add = style::ConvertScale(2.5);
const auto shift = style::ConvertScale(0.5);
const auto extended = QRectF(inner).marginsAdded({ add, add, add, add });
q.setPen(Qt::NoPen);
q.setBrush(shadow);
q.translate(center);
q.scale(scale, scale);
q.translate(-center);
q.drawRoundedRect(extended.translated(0, shift), radius, radius);
}
shadowMask = Images::prepareBlur(std::move(shadowMask));
{
auto q = Painter(&shadowMask);
q.setCompositionMode(QPainter::CompositionMode_DestinationOut);
q.drawImage(0, 0, mask);
}
p.setCompositionMode(QPainter::CompositionMode_DestinationIn);
paintLongImage(
p,
QRect(QPoint(), size),
mask,
QRect(QPoint(), mask.size()));
p.setCompositionMode(QPainter::CompositionMode_SourceOver);
paintLongImage(
p,
QRect(QPoint(), size),
shadowMask,
QRect(QPoint(), shadowMask.size()));
}
bool Manager::onlyMainEmojiVisible() const {
if (_icons.empty()) {
return true;
@ -814,15 +913,20 @@ void Manager::paintAllEmoji(
Painter &p,
not_null<Button*> button,
float64 scale,
QPoint position,
QPoint mainEmojiPosition) {
const auto current = (button == _button.get());
const auto clip = buttonInner(button);
const auto clip = QRect(
position,
button->geometry().size()).marginsRemoved(innerMargins());
const auto skip = st::reactionAppearStartSkip;
const auto animationRect = clip.marginsRemoved({ 0, skip, 0, skip });
p.setClipRect(clip);
auto hq = PainterHighQualityEnabler(p);
auto hq = std::optional<PainterHighQualityEnabler>();
if (scale != 1. && scale != kHoverScale) {
hq.emplace(p);
}
const auto between = st::reactionCornerSkip;
const auto oneHeight = st::reactionCornerSize.height() + between;
const auto finalSize = CornerImageSize(1.);
@ -930,8 +1034,8 @@ QRect Manager::validateShadow(
auto hq = PainterHighQualityEnabler(p);
const auto radius = st::reactionCornerRadius;
const auto center = _inner.center();
const auto add = style::ConvertScale(2.);
const auto shift = style::ConvertScale(1.);
const auto add = style::ConvertScale(2.5);
const auto shift = style::ConvertScale(0.5);
const auto extended = QRectF(_inner).marginsAdded({add, add, add, add});
p.setPen(Qt::NoPen);
p.setBrush(shadow);

9
Telegram/SourceFiles/history/view/history_view_react_button.h
View file

@ -76,6 +76,7 @@ public:
[[nodiscard]] bool expandUp() const;
[[nodiscard]] bool isHidden() const;
[[nodiscard]] QRect geometry() const;
[[nodiscard]] int expandedHeight() const;
[[nodiscard]] int scroll() const;
[[nodiscard]] float64 currentScale() const;
[[nodiscard]] float64 currentOpacity() const;
@ -173,7 +174,14 @@ private:
Painter &p,
not_null<Button*> button,
float64 scale,
QPoint position,
QPoint mainEmojiPosition);
void overlayExpandedBorder(
Painter &p,
QSize size,
float64 expandRatio,
float64 scale,
const QColor &shadow);
void paintLongImage(
QPainter &p,
QRect geometry,
@ -219,6 +227,7 @@ private:
QImage _cacheBg;
QImage _cacheParts;
QImage _shadowBuffer;
QImage _expandedBuffer;
std::array<bool, kFramesCount> _validBg = { { false } };
std::array<bool, kFramesCount> _validShadow = { { false } };
std::array<bool, kFramesCount> _validEmoji = { { false } };