tdesktop/Telegram/SourceFiles/ui/effects/emoji_fly_animation.cpp

105 lines
2.4 KiB
C++

/*
This file is part of Telegram Desktop,
the official desktop application for the Telegram messaging service.
For license and copyright information please follow this link:
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
*/
#include "ui/effects/emoji_fly_animation.h"
#include "data/stickers/data_custom_emoji.h"
#include "styles/style_info.h"
#include "styles/style_chat.h"
namespace Ui {
namespace {
[[nodiscard]] int ComputeFlySize(Data::CustomEmojiSizeTag tag) {
using Tag = Data::CustomEmojiSizeTag;
if (tag == Tag::Normal) {
return st::reactionInlineImage;
}
return int(base::SafeRound(
(st::reactionInlineImage * Data::FrameSizeFromTag(tag)
/ float64(Data::FrameSizeFromTag(Tag::Normal)))));
}
} // namespace
EmojiFlyAnimation::EmojiFlyAnimation(
not_null<Ui::RpWidget*> body,
not_null<Data::Reactions*> owner,
ReactionFlyAnimationArgs &&args,
Fn<void()> repaint,
Data::CustomEmojiSizeTag tag)
: _flySize(ComputeFlySize(tag))
, _fly(
owner,
std::move(args),
std::move(repaint),
_flySize,
tag)
, _layer(body) {
body->sizeValue() | rpl::start_with_next([=](QSize size) {
_layer.setGeometry(QRect(QPoint(), size));
}, _layer.lifetime());
_layer.paintRequest(
) | rpl::start_with_next([=](QRect clip) {
const auto target = _target.data();
if (!target || !target->isVisible()) {
return;
}
auto p = QPainter(&_layer);
const auto rect = Ui::MapFrom(&_layer, target, target->rect());
const auto skipx = (rect.width() - _flySize) / 2;
const auto skipy = (rect.height() - _flySize) / 2;
const auto area = _fly.paintGetArea(
p,
QPoint(),
QRect(
rect.topLeft() + QPoint(skipx, skipy),
QSize(_flySize, _flySize)),
st::infoPeerBadge.premiumFg->c,
clip,
crl::now());
if (_areaUpdated || _area.isEmpty()) {
_area = area;
} else {
_area = _area.united(area);
}
}, _layer.lifetime());
_layer.setAttribute(Qt::WA_TransparentForMouseEvents);
_layer.show();
}
not_null<Ui::RpWidget*> EmojiFlyAnimation::layer() {
return &_layer;
}
bool EmojiFlyAnimation::finished() const {
if (const auto target = _target.data()) {
return _fly.finished() || !target->isVisible();
}
return true;
}
void EmojiFlyAnimation::repaint() {
if (_area.isEmpty()) {
_layer.update();
} else {
_layer.update(_area);
_areaUpdated = true;
}
}
bool EmojiFlyAnimation::paintBadgeFrame(
not_null<Ui::RpWidget*> widget) {
_target = widget;
return !_fly.finished();
}
} // namespace Ui